Abrégé

A reflective display device and a color laminated display device are disclosed. The reflective display device according to the present application includes: a first electrode which is a transparent electrode; a second electrode arranged opposite to the first electrode; a display layer arranged between an inner side of the first electrode and an inner side of the second electrode; the display layer including a plurality of pixel walls which are arranged in the display layer at intervals; and an accommodating cavity formed by two adjacent pixel walls and the inner side of the second electrode, the accommodating cavity being used for accommodating a color developing liquid, and each of the pixel walls has a color identical to the color developing liquid.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

The present invention relates to the technical field of polymer materials, and relates to a polymer of formula I. Disclosed are a high-dielectric hydrophobic polymer, and a preparation method therefor and the use thereof. The polymer of the present invention has a polarizable group which can improve the dielectric constant of the polymer and also maintain high hydrophobicity and light transmittance and relatively low roughness thereof, thereby realizing low hysteresis and recoverable electrowetting contact angles at a low voltage. The polymer of the present invention is used as a cross-linked network-shaped amorphous polymer, has extremely low crystallinity, good optical transparency, a light transmittance of 99%, and is sufficient to satisfy the requirements of an electrowetting display, a liquid lens, etc., for the light transmittance thereof.

Classes IPC  ?

• C08G 77/50 - Composés macromoléculaires obtenus par des réactions créant dans la chaîne principale de la macromolécule une liaison contenant du silicium, avec ou sans soufre, azote, oxygène ou carbone dans lesquels au moins deux atomes de silicium, mais pas la totalité, sont liés autrement que par des atomes d'oxygène par des liaisons au carbone
• C08L 83/14 - Compositions contenant des composés macromoléculaires obtenus par des réactions créant dans la chaîne principale de la macromolécule une liaison contenant uniquement du silicium, avec ou sans soufre, azote, oxygène ou carboneCompositions contenant des dérivés de tels polymères dans lesquels au moins deux atomes de silicium, mais pas la totalité sont liés autrement que par des atomes d'oxygène

Abrégé

A reflective display device and a color stack display device, relating to the technical field of display. The reflective display device comprises: a first electrode (31), the first electrode (11, 21, 31, 41) being a transparent electrode; a second electrode (12, 22, 32, 42), arranged opposite to the first electrode (11, 21, 31, 41); and a display layer, provided between the inner side of the first electrode (11, 21, 31, 41) and the inner side of the second electrode (12, 22, 32, 42). The display layer comprises a plurality of pixel walls (13, 23, 33, 43); the pixel walls (13, 23, 33, 43) are arranged in the display layer at intervals; every two adjacent pixel walls (13, 23, 33, 43) and the inner side of the second electrode (12, 22, 32, 42) define an accommodating cavity, and the accommodating cavity is used for accommodating a color developing liquid (14, 24), wherein the color of the pixel walls (13, 23, 33, 43) is the same as that of the color developing liquid (14, 24). Due to the fact that the color displayed by the pixel walls (13, 23, 33, 43) is the same as that displayed by the reflective display device, light passing through the pixel walls (13, 23, 33, 43) from the outside is changed to have the same color as the reflective display device, so that the effect of stray light on the contrast ratio, color gamut and viewing angle color shift of the reflective display device is eliminated, and the color gamut and contrast ratio of the reflective display device are improved.

Classes IPC  ?

• G02F 1/1676 - Électrodes

Abrégé

A method and a system for analyzing a transient current of a non-polar liquid, and an apparatus are disclosed. The method includes: measuring a transient current of a to-be-detected device to obtain a transient current reference curve; determining experimental parameters of a first influencing factor in the to-be-detected device according to the transient current reference curve and preset equations, and measuring experimental parameters of a second influencing factor in the device; constructing a transient current reference model according to the experimental parameters of the first and second influencing factors and a preset current model; adjusting parameters of the first and/or second influencing factor in the transient current reference model to obtain a plurality of transient current models; and calculating corresponding transient current change data according to the transient current models to construct and output a plurality of transient current curves.

Classes IPC  ?

• G06F 30/28 - Optimisation, vérification ou simulation de l’objet conçu utilisant la dynamique des fluides, p. ex. les équations de Navier-Stokes ou la dynamique des fluides numérique [DFN]

Abrégé

Disclosed in the present invention are a preparation method for a photochromic film and a use of the photochromic film. The preparation method for the photochromic film comprises the following steps: S1, mixing a solution of a tungsten-containing compound with a polymer or a photocurable resin solution to obtain a precursor solution; and S2, oscillating the precursor solution for 0.5-1.5 h, and evaporating same for 1-2 hours to obtain a photochromic film containing in-situ formed tungsten oxide. When the photochromic film of the present invention is irradiated by ultraviolet light, the transmittance of visible light and near-infrared light is reduced, and the film shows a darkened color, thus blocking solar heat; and after the ultraviolet light is removed, the transmittance of visible light and near-infrared light is recovered, and the film recovers its color, thus providing good chromic performance. In addition, the present invention further integrates the photochromic film and an artificial ultraviolet light source into a system, and ultraviolet irradiation can be carried out according to needs, so as to achieve a photochromic function.

Classes IPC  ?

• C08J 5/18 - Fabrication de bandes ou de feuilles
• C08L 33/12 - Homopolymères ou copolymères du méthacrylate de méthyle
• C08L 33/00 - Compositions contenant des homopolymères ou des copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, chacun ne contenant qu'une seule liaison double carbone-carbone et un seul étant terminé par un seul radical carboxyle, ou ses sels, anhydrides, esters, amides, imides ou nitrilesCompositions contenant des dérivés de tels polymères
• C08L 75/14 - Polyuréthanes comportant des liaisons non saturées carbone-carbone
• C08K 3/22 - OxydesHydroxydes de métaux
• C08L 25/06 - Polystyrène

Abrégé

Disclosed in the present invention are an electrowetting display device, and a manufacturing method therefor and an application thereof. The electrowetting display device comprises a first substrate, a second substrate, and a plurality of display units arranged between the first substrate and the second substrate. The display unit comprises a sealed cavity, and the sealed cavity is filled with a polar fluid and a non-polar fluid. When no voltage is applied between the first substrate and the second substrate, the arrangement direction of the polar fluid and the non-polar fluid forms an included angle θ with respect to the arrangement direction of the first substrate and the second substrate, wherein θ>0°. In the present invention, the polar fluid, the non-polar fluid, and the surface of the first substrate or the second substrate form a three-phase contact line, and on this contact line, fluid movement or rewetting can be achieved with only a very low potential energy, so that the opening voltage of the electrowetting display device is low.

Classes IPC  ?

• G09G 3/34 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante
• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

The present invention relates to the technical field of electrowetting display device production. Disclosed are a lower substrate for an electrowetting display device, and an electrowetting display device and a preparation method therefor. In the present invention, on the basis of a conventional pixel grid, the pixel grid is transformed by using capillary action. A pixel wall (400) is designed, such that each pixel grid (410) has a pinning structure (411). The pinning structure (411) may tightly lock a polar liquid (700) under the action of capillary force. The pinning structure (411) matches a step structure (500), such that the break and the movement direction of ink are controllable. After the ink breaks, the ink can move in a unified direction, such that the display effect of the electrowetting display device is uniform; moreover, the aggregation of the ink in adjacent pixel grids (410) can be prevented, thereby preventing the risk of the ink going over a wall.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A multi-layer electrowetting display device, a preparation method therefor, and a use thereof. The multi-layer electrowetting display device comprises a transmission layer, a plurality of intermediate layers, and a reflection layer which are arranged in a stacked manner; individual sealed cavities are formed between the transmission layer and intermediate layers adjacent thereto and between the reflection layer and intermediate layers thereto; the sealed cavities are filled with a fluid; each intermediate layer comprises a double-sided conductive substrate; and each of the two conductive surfaces of the double-sided conductive substrate serves as a drive electrode for fluid movement or deformation on the respective two sides of the intermediate layers. The present multilayer electrowetting display device is relatively thin, the problem of stereopsis and crosstalk is reduced, and the contrast ratio is high.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

Provided are a reflector, a preparation method therefor, and the application thereof. A dimming layer in the reflector comprises a liquid crystal polymer layer and a small-molecule liquid crystal layer, which have opposite chirality and are formed by photopolymerization-induced layering of a liquid crystal mixture. The reflector has high reflectivity, adjustable reflectivity and reflected light chirality, and a simple preparation process.

Classes IPC  ?

• G02F 1/1347 - Disposition de couches ou de cellules à cristaux liquides dans lesquelles un faisceau lumineux est modifié par l'addition des effets de plusieurs couches ou cellules
• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés
• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• G02F 1/1333 - Dispositions relatives à la structure
• C09K 19/50 - Mélanges de composés formant des cristaux liquides couverts par plus d'un groupe précédent contenant des composés stéroïdes formant des cristaux liquides
• C09K 19/36 - Composés stéroïdes formant des cristaux liquides
• C09K 19/38 - Polymères, p. ex. polyamides

Abrégé

A multilayer film and a preparation method thereof is provided, and belongs to the technical field of optical films. The provided multilayer film comprises an ultraviolet blocking material and a cholesteric liquid crystal layer. The cholesteric liquid crystal layer comprises a polymerizable liquid crystal monomer, a polymerizable chiral dopant and a photoinitiator. The multilayer film can filter ultraviolet rays and near infrared rays in natural light, thereby reducing the heat effect of the natural light and harms of the ultraviolet rays to people and objects. In addition, the multilayer film has a high visible light transmission rate, which does not distort the color of the natural light passing through.

Classes IPC  ?

• G02B 5/20 - Filtres
• C09K 19/38 - Polymères, p. ex. polyamides
• C09K 19/58 - Agents de dopage ou de transfert de charge
• G02B 1/02 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de cristaux, p. ex. sel gemme, semi-conducteurs

Abrégé

Disclosed are a method and system for analyzing a transient current of a non-polar liquid, and an apparatus. The method for analyzing the transient current of the non-polar liquid comprises: detecting a change over time of the transient current of a device to be tested to obtain a transient current reference curve; determining an experimental parameter of a first influence factor in said device according to the transient current reference curve and a preset formula, and measuring an experimental parameter of a second influence factor in said device; constructing a transient current reference model according to the experimental parameters of the first influence factor and the second influence factor and a preset current model; adjusting parameters of the first influence factor and/or the second influence factor in the transient current reference model to obtain a plurality of transient current adjusting models; and calculating corresponding transient current change data according to the plurality of transient current adjusting models so as to construct and output a plurality of transient current adjusting curves. According to the present invention, a user does not need to perform experiments one by one, and the analysis efficiency of the transient current in the non-polar liquid can also be improved.

Classes IPC  ?

• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu

Abrégé

The present application discloses a manufacturing method for an off-axis focusing lens, comprising: providing a first alignment layer on a surface of a first transparent substrate to form a first lens assembly; providing a second alignment layer on a surface of a second transparent substrate to form a second lens assembly; providing spacers on the side of the first lens assembly where the first alignment layer is provided; fixing the relative position between the first lens assembly and the second lens assembly by means of the spacers to form a liquid crystal cell; providing a void layer between the first lens assembly and the second lens assembly; performing first-stage alignment processing and second-stage alignment processing on the first alignment layer and the second alignment layer; and performing liquid crystal filling processing on the void layer to form a liquid crystal layer. According to the manufacturing method, refined optical devices can be manufactured, thereby meeting the needs of optical systems having high integration requirements.

Classes IPC  ?

• G02F 1/29 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de la position ou de la direction des rayons lumineux, c.-à-d. déflexion
• G02F 1/1337 - Orientation des molécules des cristaux liquides induite par les caractéristiques de surface, p. ex. par des couches d'alignement

Abrégé

A light reflective thin film and a preparation method therefor, and a sensor. The preparation method for a light reflective thin film comprises: mixing ingredients including liquid crystal monomers, a chain extender, and a photoinitiator, and heating same for a reaction, so as to form a cholesteric main-chain liquid crystal polymer; the liquid crystal monomers comprising chiral liquid crystal monomers and non-chiral liquid crystal monomers; mixing the cholesteric main-chain liquid crystal polymer with a pore-forming agent into a mixture, taking a substrate having a parallel alignment layer, covering the parallel alignment layer with the mixture, performing ultraviolet light irradiation, and removing the pore-forming agent, so as to prepare a cholesteric main-chain liquid crystal elastomer having a porous structure; and adding a hydrophilic polymerizable salt to the cholesteric main-chain liquid crystal elastomer and performing ultraviolet light irradiation, such that the hydrophilic polymerizable salt is polymerized to form a hydrophilic polymer network, and the hydrophilic polymer network together with the cholesteric main-chain liquid crystal elastomer forms an interpenetrating polymer network. By means of the above-mentioned method, a light reflective thin film having elasticity and having characteristics of reversible water responsiveness and tensile strain responsiveness can be prepared.

Classes IPC  ?

• G02F 1/1333 - Dispositions relatives à la structure
• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés
• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• G01N 21/29 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en utilisant la détection visuelle
• G01B 11/16 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la déformation dans un solide, p. ex. indicateur optique de déformation

Abrégé

Disclosed in the present invention are a polymer-stabilized liquid crystal laser, a preparation method therefor, and a device. The polymer-stabilized liquid crystal laser comprises a laser body. The laser body comprises: a first light-transmitting conductive layer; a second light-transmitting conductive layer arranged opposite to the first light-transmitting conductive layer; and a resonant cavity unit, the resonant cavity unit being located between the first light-transmitting conductive layer and the second light-transmitting conductive layer, and the resonant cavity unit being filled with perovskite quantum dot polymer-stabilized liquid crystals. The polymer-stabilized liquid crystal laser according to embodiments of the present invention has at least the following beneficial effect: perovskite quantum dots in the polymer-stabilized liquid crystal have a high fluorescence quantum yield, which can reach 50-100%. An extremely high fluorescence quantum yield makes it easier to generate ASE, correspondingly resulting in easier production of laser emission, thereby further leading to a higher emission intensity and a lower laser threshold.

Classes IPC  ?

• H01S 3/08 - Structure ou forme des résonateurs optiques ou de leurs composants
• H01S 3/106 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p. ex. commutation, ouverture de porte, modulation ou démodulation par commande de dispositifs placés dans la cavité
• H01S 3/213 - Liquides comprenant un colorant organique
• H01S 3/20 - Liquides

Abrégé

Disclosed are an electrowetting display device structure and a packaging method thereof. The electrowetting display device structure comprises an upper substrate and a lower substrate which are oppositely disposed; the upper substrate sequentially comprises a first substrate, a first electrode, and conductive pixel walls along a direction towards the lower substrate; the conductive pixel walls define pixel grids; the lower substrate sequentially comprises a second substrate, a second electrode, and a hydrophobic insulating layer along a direction towards the upper substrate; an adjusting region is formed between the upper substrate and the lower substrate; the adjusting region is filled with polar liquid and non-polar liquid which are immiscible; and end portions of the conductive pixel walls extend into the non-polar liquid. According to the present invention, by disposing the conductive pixel walls on the upper substrate, defects caused by surface modification and high-temperature backflow of the material of a hydrophobic insulating layer can be avoided, and the original characteristics of the surface of the hydrophobic insulating layer are completely ensured to be not damaged, thereby improving the reliability of an electrowetting optical device.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables
• G02B 26/02 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander l'intensité de la lumière

Abrégé

A multilayer film and a method for manufacturing same, which belong to the field of optical film technology. The multilayer film comprises an ultraviolet-blocking material (101) and a cholesteric liquid crystal layer (201), wherein the cholesteric liquid crystal layer (201) comprises a polymerizable liquid crystal monomer, a polymerizable chiral dopant and a photoinitiator. The use of the multilayer film can filter ultraviolet rays and near infrared rays in natural light, reduce the thermal effect of natural light, and alleviate the damage caused by ultraviolet rays to humans and objects, so that visible light has high luminous flux and the color of natural light passing through the multilayer film is not distorted.

Classes IPC  ?

• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs
• G02B 5/28 - Filtres d'interférence

Abrégé

Disclosed are a color-changeable reflective paint, a preparation method therefor, and an application thereof. The color-changeable reflective paint comprises liquid crystal microcapsules and an adhesive, wherein the liquid crystal microcapsule comprises a core material and a shell material covering the surface of the core material, the core material is a liquid crystal microdroplet formed by wrapping a cholesteric liquid crystal with a cellulose nanocrystal, the shell material is made of a melamine resin, and the refractive index of the adhesive matches the refractive index of the liquid crystal microcapsule. By means of the method, the cholesteric structure in the color-changeable reflective paint is stable, and a reflective waveband can be adjusted in response to the temperature; moreover, because the orientation of liquid crystals in the liquid crystal microcapsule is centrally symmetric, the reflective wavelength is independent of the angle, so that the paint can change as the environmental temperature changes, and temperature-responsive color-changeable adjustment is achieved; a color changing range can fall within a near-infrared band region and a visible light band region, so that the paint is applicable to the fields such as walls, smart windows, furniture, decorations, and automobiles.

Classes IPC  ?

• C09D 5/26 - Peintures thermosensibles
• C09D 5/33 - Peintures réfléchissantes
• C09D 163/10 - Résines époxy modifiées par des composés non saturés

Abrégé

Disclosed is a cholesteric phase liquid crystal electrowetting display device, comprises three electrowetting display layers stacked in sequence. Each of the three electrowetting display layers comprises a hydrophobic insulating layer and a display layer in contact with the hydrophobic insulating layer. The display layer comprises a polar electrolyte solution layer and a cholesteric phase liquid crystal layer. The cholesteric phase liquid crystal layer is a left-handed cholesteric phase liquid crystal layer or a right-handed cholesteric phase liquid crystal layer. By means of controlling the display layers in the three electrowetting display layers to respectively reflect light of different colors, full-color display of the device is achieved on the basis of the principle of the additive color mixing of the three-layer structure.

Classes IPC  ?

• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A liquid drop directional transport device, comprising an insulating base (11), an interdigital electrode (12) and a dielectric layer (13); the interdigital electrode (12) is provided on the insulating base (11) and comprises a first electrode (14) and a second electrode (15), the first electrode (14) has at least two first fingers (141), and the second electrode (15) has at least one second finger (151); the first fingers (141) and the second fingers (151) are alternately arranged and spaced apart from each other, and the distance between adjacent first fingers (141) and second fingers (151) gradually changes; and the dielectric layer (13) covers the interdigital electrode (12).

Classes IPC  ?

• B01L 3/00 - Récipients ou ustensiles pour laboratoires, p. ex. verrerie de laboratoireCompte-gouttes

Abrégé

Disclosed in the present invention are an intelligent dimming device and a production method therefor. The intelligent dimming device comprises a first light-transmitting electrically-conductive substrate and a second light-transmitting electrically-conductive substrate that are arranged oppositely; a vertical alignment layer is provided on the surfaces of the first light-transmitting electrically-conductive substrate and the second light-transmitting electrically-conductive substrate facing each other; a polymer stabilized liquid crystal layer is provided between the first light-transmitting electrically-conductive substrate and the second light-transmitting electrically-conductive substrate; and the polymer stabilized liquid crystal layer is made of a liquid crystal mixture comprising 81-98.75 parts by mass of negative liquid crystal, 1-15 parts by mass of polymerizable liquid crystal monomer, 0.2-2 parts by mass of photoinitiator, and 0.05-2 parts by mass of chain transfer agent. The intelligent dimming device of the present invention has low threshold voltage, high long-term stability, and high compression resistance.

Classes IPC  ?

• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés
• G02F 1/1337 - Orientation des molécules des cristaux liquides induite par les caractéristiques de surface, p. ex. par des couches d'alignement
• C08F 120/30 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle contenant des cycles aromatiques dans la partie alcool
• C08F 2/48 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible
• C08F 2/38 - Polymérisation utilisant des régulateurs, p. ex. des agents d'arrêt de chaîne

Abrégé

A method for manufacturing an electrowetting display device, comprising: S1, aligning and attaching a curved-surface upper substrate (401) and a curved-surface lower substrate (101); and S2, packaging the upper substrate (401), the lower substrate (101), and a device located between the upper substrate (401) and the lower substrate (101) to form the curved-surface electrowetting display device. Before packaging, as the upper substrate (401) and the lower substrate (101) are of curved-surface structures, the electrowetting display device is manufactured by adopting the method of forming the curved-surface substrate and then packaging, so that the problem of packaging failure caused by stress generated by a packaging material after bending and the problem of ink rollover caused by internal liquid pressure concentration are avoided. Also disclosed is a curved-surface electrowetting display.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables
• G02F 1/1333 - Dispositions relatives à la structure

Abrégé

The present invention provides a reverse electrowetting mechanical energy collection device and a mechanical energy collection apparatus. The reverse electrowetting mechanical energy collection device comprises: a first electrode substrate; a second electrode substrate disposed opposite to the first electrode substrate to form an accommodating cavity; a solid dielectric layer disposed on the side of the second electrode substrate close to the first electrode substrate; a liquid-injection smooth and porous surface layer disposed on the side of the solid dielectric layer close to the first electrode substrate; and a conductive fluid that fills the accommodating cavity, and is in contact with the first electrode substrate and the liquid-injection smooth and porous surface layer. According to the present invention, the structural design of a multi-layer composite dielectric layer consisting of the solid dielectric layer and the liquid-injection smooth and porous surface layer is adopted, and the hydrophobicity and the insulativity of the dielectric layer are separated, thus a material having a relatively high dielectric constant can be selected as the solid dielectric layer, the dielectric structure limitation of fluoropolymers is broken through, the functional properties of the dielectric layer in a reverse electrowetting system are greatly improved, the problem of charge trapping is effectively avoided, and the energy generation efficiency of the device is improved.

Classes IPC  ?

• H02N 1/08 - Générateurs à influence avec porteur de charge conducteur, c.-à-d. machines à capacité
• H01G 5/00 - Condensateurs dont la capacité varie par des moyens mécaniques, p. ex. en tournant un axeProcédés pour leur fabrication
• H01G 5/04 - Condensateurs dont la capacité varie par des moyens mécaniques, p. ex. en tournant un axeProcédés pour leur fabrication à variation de surface efficace d'armature

Abrégé

A use of zwitterionic compound in preparation of dynamic-scattering-mode-based liquid crystal material. A liquid crystal material is also described. Such material contains liquid crystal and dopant, and the dopant is zwitterionic compound. A liquid crystal electro-optical device comprising such liquid crystal compound and the use of such optical device are also described. Zwitterionic compound is used as dopant to induce a stable dynamic scattering mode in liquid crystals.

Classes IPC  ?

• C09K 19/54 - Additifs n'ayant pas de mésophase spécifique
• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• C09K 19/52 - Substances formant des cristaux liquides caractérisées par des constituants qui ne sont pas des cristaux liquides, p. ex. additifs

Abrégé

The present invention discloses a semi-interpenetrating polymer network-based responsive material, which comprises a semi-interpenetrating polymer network formed by a liquid crystal elastomer and a cholesteric liquid crystal polymer network, wherein the cholesteric liquid crystal polymer network is formed by polymerization of a liquid crystal mixture including a liquid crystal monomer, the liquid crystal monomer include one or more liquid crystal monomer compounds, and at least one of the liquid crystal monomer compounds is a monofunctional liquid crystal monomer. In the semi-interpenetrating polymer network, the liquid crystal elastomer and the cholesteric liquid crystal polymer network can undergo phase separation with temperature changes, thereby realizing reversible color change. The responsive material does not need to change color by solvent swelling, can obtain a desired coating by a conventional process such as coating, and has good application prospects in the fields of temperature response liquid crystal device, temperature response coating, anti-counterfeiting label and monitoring indication.

Classes IPC  ?

• C08L 83/06 - Polysiloxanes contenant du silicium lié à des groupes contenant de l'oxygène
• C08L 33/14 - Homopolymères ou copolymères des esters d'esters contenant des atomes d'halogène, d'azote, de soufre ou d'oxygène en plus de l'oxygène du radical carboxyle
• C08F 283/12 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères prévus par la sous-classe sur des polysiloxanes
• C08F 220/30 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle contenant des cycles aromatiques dans la partie alcool
• C08F 222/20 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle
• C09D 4/02 - Monomères acryliques
• C09D 4/06 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, à base de composés non macromoléculaires organiques ayant au moins une liaison non saturée carbone-carbone polymérisable en combinaison avec un composé macromoléculaire autre qu'un polymère non saturé des groupes
• C09D 5/26 - Peintures thermosensibles
• C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
• C09K 19/38 - Polymères, p. ex. polyamides

Abrégé

Disclosed are an optical structure based on a cholesteric liquid crystal polymer semi-interpenetrating network, and a preparation method therefor. The optical structure comprises a semi-interpenetrating polymer network layer and a cholesteric liquid crystal layer, which are arranged according to periodicity, wherein the semi-interpenetrating polymer network layer is formed by means of the interpenetration of a liquid crystal elastomer and a cholesteric liquid crystal polymer network, and the cholesteric liquid crystal layer comprises the liquid crystal elastomer and a cholesteric liquid crystal. The performance of the optical structure with regard to reflecting non-polarized light is good.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
• G02B 5/30 - Éléments polarisants
• C09K 19/04 - Substances formant des cristaux liquides caractérisées par la structure chimique des constituants formant des cristaux liquides

Abrégé

A water-responsive interpenetrating polymer network, a preparation method and use thereof are provided. The water-responsive interpenetrating polymer network comprises an interpenetrating polymer network formed by a cholesteric liquid crystal polymer and a polyionic liquid; wherein the cholesteric liquid crystal polymer is formed by polymerization of a liquid crystal mixture; and the polyionic liquid contains a hydrophilic group or is a hydrophilic salt. The interpenetrating polymer network is water responsive without needs of activation with an alkaline solution, which simplifies the preparation process, and has stable water responsiveness performance after prolonged and/or repeated exposure to water. The water-responsive interpenetrating polymer network can be used to prepare light reflective coatings and reflective devices, and has higher commercial value.

Classes IPC  ?

• C08F 220/06 - Acide acryliqueAcide méthacryliqueLeurs sels métalliques ou leurs sels d'ammonium
• C08F 2/44 - Polymérisation en présence d'additifs, p. ex. plastifiants, matières colorantes, charges
• C08F 2/50 - Polymérisation amorcée par énergie ondulatoire ou par rayonnement corpusculaire par la lumière ultraviolette ou visible avec des agents sensibilisants
• C08F 220/34 - Esters contenant de l'azote
• C08F 230/02 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et contenant du phosphore, du sélénium, du tellure ou un métal contenant du phosphore
• C09D 133/02 - Homopolymères ou copolymères d'acidesLeurs sels métalliques ou d'ammonium
• C09D 133/14 - Homopolymères ou copolymères d'esters d'esters contenant des atomes d'halogène, d'azote, de soufre ou d'oxygène en plus de l'oxygène du radical carboxyle
• C09D 143/02 - Homopolymères ou copolymères de monomères contenant du phosphore
• C09K 19/38 - Polymères, p. ex. polyamides

Abrégé

Disclosed are a laser protective film and a laser protective device comprising the same. The laser protective film comprises, stackingly disposed: a first liquid crystal polymer layer for reflecting left-hand polarized light, a second liquid crystal polymer layer for reflecting right-hand polarized light, and a third liquid crystal polymer layer for absorbing incident laser. In the above way, the laser protective film of the present disclosure has a large angle of protection, high flexibility. In addition, it is easy to find any damage to the laser protective film of the present disclosure. Moreover, it can make modification to existing equipment. Thus, the present disclosure has a good application prospect in many fields such as laser goggles, window glass and the like.

Classes IPC  ?

• G02B 5/08 - Miroirs
• G02B 5/00 - Éléments optiques autres que les lentilles

Abrégé

A multi-stable electroresponsive smart window and preparation method thereof are disclosed. The multi-stable electroresponsive smart window comprises a first light transmitting conductive substrate, a parallel orientation layer, a positive polymer stabilized cholesteric texture layer, a positive cholesteric texture layer and a second light transmitting conductive substrate disposed in stack successively. The multi-stable electroresponsive smart window of the present disclosure can realize a diversified light transmission state such as colored and transparent state, colored and blur state, colorless and blur state, and colorless and transparent state by changing the magnitude of the access voltage, thereby satisfying the various demands in people's work and life. In addition, the multi-stable electroresponsive smart window of the present disclosure has the characteristics of simple production, rich patterns, energy saving and environmental protection, which has good application prospects in the fields of window glass, home glass window and glass curtain wall, and the like.

Classes IPC  ?

• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• G02F 1/139 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique basés sur des effets d'orientation où les cristaux liquides restent transparents

Abrégé

A preparation method for a temperature-responsive light reflecting coating is provided comprising: forming a main chain cholesteric phase liquid crystal polymer by a polymerization reaction between an acrylate liquid crystal and an amine, and coating the main chain cholesteric phase liquid crystal polymer on a substrate to form a light reflecting coating, wherein the acrylate comprises a chiral acrylate, and the reflection wavelength of the reflecting coating is determined by the content of the chiral acrylate liquid crystal and the polymerization degree of the main chain cholesteric phase liquid crystal polymer formed. The method may further comprise cross-linking the main chain cholesteric phase liquid crystal polymer to obtain a polymer network so as to form a solid coating. The present disclosure further provides a temperature-responsive light reflecting coating. The preparation of the main chain cholesteric phase liquid crystal polymer of the present disclosure requires only a simple thermally-driven polymerization reaction.

Classes IPC  ?

• G02F 1/1337 - Orientation des molécules des cristaux liquides induite par les caractéristiques de surface, p. ex. par des couches d'alignement
• C09K 19/20 - Composés non stéroïdes formant des cristaux liquides contenant au moins deux cycles non condensés contenant au moins deux cycles benzéniques liés par une chaîne contenant des atomes de carbone et d'oxygène comme chaînons, p. ex. esters
• C09K 19/38 - Polymères, p. ex. polyamides
• C09D 5/33 - Peintures réfléchissantes
• C09K 19/04 - Substances formant des cristaux liquides caractérisées par la structure chimique des constituants formant des cristaux liquides

Abrégé

Disclosed in the present invention are a water-responsive interpenetrating polymer network, a preparation method therefor and use thereof. The water-responsive interpenetrating polymer network comprises an interpenetrating polymer network formed by a cholesteric liquid crystal polymer and a polyionic liquid. The cholesteric liquid crystal polymer is formed by polymerization of a liquid crystal mixture. The polyionic liquid contains a hydrophilic group or a hydrophilic salt. The interpenetrating polymer network of the present invention has water responsiveness without the need for alkaline solution activation, simplifies the preparation process, and stabilizes the response property after prolonged and/or repeated exposure to water. The water-responsive interpenetrating polymer network of the present invention can be used to prepare a light reflecting coating and a reflecting device, and has high commercial value.

Classes IPC  ?

• C09D 135/02 - Homopolymères ou copolymères d'esters
• C09D 133/02 - Homopolymères ou copolymères d'acidesLeurs sels métalliques ou d'ammonium
• C09D 133/14 - Homopolymères ou copolymères d'esters d'esters contenant des atomes d'halogène, d'azote, de soufre ou d'oxygène en plus de l'oxygène du radical carboxyle
• C09D 143/02 - Homopolymères ou copolymères de monomères contenant du phosphore
• C09D 5/33 - Peintures réfléchissantes
• C08J 9/28 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement par élimination d'une phase liquide d'un objet ou d'une composition macromoléculaire, p. ex. par séchage du coagulum
• C08F 222/20 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle
• C08F 2/44 - Polymérisation en présence d'additifs, p. ex. plastifiants, matières colorantes, charges
• C08F 220/06 - Acide acryliqueAcide méthacryliqueLeurs sels métalliques ou leurs sels d'ammonium
• C08F 222/34 - Cyanure de vinylidène
• C08F 130/02 - Homopolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et contenant du phosphore, du sélénium, du tellure ou un métal contenant du phosphore
• C09K 19/38 - Polymères, p. ex. polyamides
• C08L 35/02 - Homopolymères ou copolymères des esters

Abrégé

An application of a zwitterionic compound in preparing a liquid crystal material on the basis of a dynamic scattering mode. A liquid crystal mixture, wherein a liquid crystal compound comprises a host liquid crystal and a dopant, said dopant being a zwitterionic compound. A liquid crystal dimming device comprising the liquid crystal compound, and an application of the liquid crystal dimming device. The present zwitterionic compound acts as a dopant and stabilizes the dynamic scattering of the liquid crystal material, solves the problem in the prior art in which a dopant has good DSM characteristics but a low threshold voltage, and prolongs the service life of DSM-based optical devices.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
• C09K 19/58 - Agents de dopage ou de transfert de charge
• C09K 19/40 - Substances formant des cristaux liquides caractérisées par la structure chimique des constituants formant des cristaux liquides contenant des éléments autres que carbone, hydrogène, halogène, oxygène, azote ou soufre, p. ex. silicium, métaux
• C09K 19/34 - Composés non stéroïdes formant des cristaux liquides contenant au moins un hétérocycle

Abrégé

A liquid crystal mixture and a temperature-responsive infrared reflection device made by using the liquid crystal mixture containing potassium laurate. Infrared light can pass through the device within a non-working temperature range, and a chiral dopant enables potassium laurate to form a cholesteric phase within a working temperature range. The birefringence value of the potassium laurate gradually increases with the increase of temperature between 12.5° C. and 26° C., so that the infrared reflection bandwidth of the device constantly increases. The birefringence value of the potassium laurate gradually decreases with the increase of temperature between 26° C. and 54.5° C., so that the infrared reflection bandwidth of the device constantly decreases. The infrared reflection bandwidth of the infrared reflection device can vary with temperature by adjusting the proportions of the ingredients of the liquid crystal mixture containing potassium laurate.

Classes IPC  ?

• C09K 19/40 - Substances formant des cristaux liquides caractérisées par la structure chimique des constituants formant des cristaux liquides contenant des éléments autres que carbone, hydrogène, halogène, oxygène, azote ou soufre, p. ex. silicium, métaux
• C09K 19/58 - Agents de dopage ou de transfert de charge
• C09K 19/52 - Substances formant des cristaux liquides caractérisées par des constituants qui ne sont pas des cristaux liquides, p. ex. additifs
• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
• C07C 53/126 - Acides contenant au moins cinq atomes de carbone

Abrégé

The invention discloses a temperature-responsive liquid crystal material, which includes: a side-chain liquid crystal polysiloxane having a temperature response behavior at a proportion of 65-89 wt%, a diacrylate liquid crystal for forming a polymer network at a proportion of 10-34 wt%, and a photoinitiator at a proportion of 1 wt%, in which the sum of the proportions of the above-mentioned materials is 100 wt%, and the photoinitiator initiates a photopolymerization reaction of the diacrylate liquid crystal under ultraviolet light irradiation to form a polymer network for stabilizing the side-chain liquid crystal polysiloxane, such that the birefringence of the liquid crystal material can decrease with increasing temperature. The invention also provides a corresponding light adjustment device and a manufacturing method thereof. The birefringence of the liquid crystal material proposed by the present invention decreases to about half of the original birefringence thereof as the temperature increases, which is equivalent to changing from a full wave plate to a half wave plate, thereby exhibiting a significant temperature response effect.

Classes IPC  ?

• C09K 19/38 - Polymères, p. ex. polyamides
• C09K 19/40 - Substances formant des cristaux liquides caractérisées par la structure chimique des constituants formant des cristaux liquides contenant des éléments autres que carbone, hydrogène, halogène, oxygène, azote ou soufre, p. ex. silicium, métaux
• C09K 19/58 - Agents de dopage ou de transfert de charge

Abrégé

An infrared reflection device includes a power supply assembly, a plurality of switches, and two relatively disposed light-transmitting conductive substrates packaging a regulating area. Each of the light-transmitting conductive substrates comprise a light-transmitting substrate and an electrode layer. The regulating area is filled with a liquid crystal mixture; the electrode layers are arranged on opposite surfaces of the two light-transmitting substrates; the electrode layer of at least one of the light-transmitting conductive substrates comprises at least two mutually independent electrode areas; and electrode areas of the same light-transmitting conductive substrate, after being respectively connected in series to the switches, are jointly connected in parallel to the same electrode of the power supply assembly.

Classes IPC  ?

• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• E06B 9/24 - Écrans ou autres dispositifs protecteurs contre la lumière, notamment contre la lumière solaireÉcrans similaires pour protection de l'intimité ou pour des raisons esthétiques
• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés
• G02F 1/1337 - Orientation des molécules des cristaux liquides induite par les caractéristiques de surface, p. ex. par des couches d'alignement
• G02F 1/1343 - Électrodes

Abrégé

A dye-doped laser protective film is disclosed, comprising a polymer layer A and a polymer layer B. The polymer molecules in the polymer layer A are arranged in a left-handed helical structure which can reflect a left-handed polarized laser. The polymer molecules in the polymer layer B are arranged in a right-handed helical structure which can reflect a right-handed polarized laser. The combination of the polymer layer having the left-handed helical structure and the polymer layer having the right-handed helical structure can completely reflect circularly polarized light. In addition, the dye can absorb incident laser, so as to expand the protection angle of the laser protective film. The dye-doped laser protective film of the present disclosure has a simple manufacturing process, large protection angle and good flexibility, and can refit existing devices. Thus, the dye-doped laser protective film of the present disclosure has a good application prospect in many fields such as laser goggles, window films and the like.

Classes IPC  ?

• G02B 5/00 - Éléments optiques autres que les lentilles
• C08F 222/20 - Esters contenant de l'oxygène en plus de l'oxygène de la fonction carboxyle
• C08K 5/08 - Quinones
• C08K 5/103 - EstersÉthers-esters d'acides monocarboxyliques avec des polyalcools
• C09B 1/00 - Colorants à noyau anthracène non condensé avec d'autres cycles
• G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
• C08J 7/04 - Revêtement

Abrégé

A total-reflection infrared reflection device and a preparation method thereof. The device includes two light-transmitting conductive substrates disposed oppositely, the two light-transmitting conductive substrates are packaged to form a seal cavity, in the seal cavity, opposite surfaces of the two light-transmitting conductive substrates are respectively coated with a first liquid crystal layer capable of reflecting left-handed polarized light and a second liquid crystal layer capable of reflecting right-handed polarized light, the first liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a left-handed spiral structure, the second liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a right-handed spiral structure, the cholesteric liquid crystal with the left-handed spiral structure can reflect left-handed polarized light, and the cholesteric liquid crystal with the right-handed spiral structure can reflect right-handed polarized light.

Classes IPC  ?

• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés
• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique

Abrégé

An electrically controlled smart window, which includes two transparent plates arranged oppositely, a power supply component and an in-between light-adjusting area. Hereinto the light-adjusting area is divided into a matrix of light-adjusting units by pixel wall(s), and every units are closely arranged in a grid shape. To the power supply component, an electrode is connected with the pixel wall, and another is localized on the center of light-adjusting unit and did with the transparent plate. Both surface-charged liquid crystal polymer particles and conductive packing fluid are filled into the medium between the two transparent plates. According to the present disclosure, cholesteric liquid crystal polymer microparticles with specific reflection band and surface charges are used as basic reflectors, thereby achieving the significant advantages of being easy to manufacture, low cost, and stable performance, without causing interference to electromagnetic signals.

Classes IPC  ?

• G02F 1/1333 - Dispositions relatives à la structure
• G02F 1/166 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur le mouvement de translation des particules dans un fluide sous l’influence de l’application d’un champ caractérisés par l’effet électro-optique ou magnéto-optique
• G02B 26/02 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander l'intensité de la lumière
• G02F 1/167 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur le mouvement de translation des particules dans un fluide sous l’influence de l’application d’un champ caractérisés par l’effet électro-optique ou magnéto-optique par électrophorèse
• C09K 19/38 - Polymères, p. ex. polyamides
• G02F 1/1675 - Détails de construction
• C09K 19/04 - Substances formant des cristaux liquides caractérisées par la structure chimique des constituants formant des cristaux liquides

Abrégé

Provided is a bistable driving method for an electrowetting display, comprising: setting a non-selected voltage for one or more writing rows; switching a row voltage of the one or more writing rows from the non-selected voltage to a selected voltage; applying the digital voltage on at least one column of digital electrodes to be written; switching the row voltage of the one or more writing rows from the selected voltage to the non-selected voltage, and decreasing the digital voltage applied to the at least one column to a voltage less than the opening voltage minus the selected voltage; and applying the steps above to next one or more writing rows until an entire display screen is written.

Classes IPC  ?

• G09G 3/34 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante
• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

2; and heating the substrate (7) subjected to the plasma etching, so as to recover the hydrophobicity of the hydrophobic insulating layer (13). According to the method, the technical bias that the display support plate (5) being treated by means of the plasma etching would influence the quality of the hydrophobic insulating layer (13) is eliminated.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

An electric response infrared reflection device and a preparation method thereof. The device comprises three light-transmitting conductive substrates which are oppositely arranged. Two adjacent light-transmitting conductive substrates of the three light-transmitting conductive substrates are respectively packaged to form a first adjusting area and a second adjusting area. Both the first adjusting area and the second adjusting area are filled with liquid crystal layers. Each of the liquid crystal layers comprises a mixed liquid crystal material. The mixed liquid crystal material comprises a chiral nematic phase liquid crystal, a monomer, a photoinitiator, and a chiral dopant. The spiral direction of the chiral nematic phase liquid crystal in the first adjusting area is opposite to the spiral direction of the chiral nematic phase liquid crystal in the second adjusting area, so that the total reflection of an infrared band can be implemented.

Classes IPC  ?

• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés
• G02F 1/1347 - Disposition de couches ou de cellules à cristaux liquides dans lesquelles un faisceau lumineux est modifié par l'addition des effets de plusieurs couches ou cellules
• G02F 1/1337 - Orientation des molécules des cristaux liquides induite par les caractéristiques de surface, p. ex. par des couches d'alignement
• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• G02F 1/1339 - JointsÉléments d'espacementScellement des cellules

Abrégé

Disclosed is a drying-wetting separated filling method and a filling apparatus for an electrowetting display device. The filling method comprises filling a non-polar solution into pixel grids on a lower substrate of an electrowetting display device in air, and filling a polar solution to immediately cover the non-polar solution filled after filling the non-polar solution into the pixel grids. Compared with filling the non-polar solution into the polar solution, directly filling the non-polar solution in air has better filling uniformity, easier operation and control. With the method, the fillings of the polar solution and the non-polar solution are easy, having a higher filling efficiency, and no air bubble residue.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables
• B05C 11/10 - Stockage, débit ou réglage du liquide ou d'un autre matériau fluideRécupération de l'excès de liquide ou d'un autre matériau fluide
• G02B 1/06 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de fluides en cellules transparentes
• G09G 3/34 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante
• H01L 21/67 - Appareils spécialement adaptés pour la manipulation des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide pendant leur fabrication ou leur traitementAppareils spécialement adaptés pour la manipulation des plaquettes pendant la fabrication ou le traitement des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide ou de leurs composants

Abrégé

A laser protection film and a laser protection apparatus. The laser protection film comprises a first liquid crystal polymer layer (11), a second liquid crystal polymer layer (12) and a third liquid crystal polymer layer (13) that are stacked on top of one another, wherein the first liquid crystal polymer layer (11) is configured to reflect left-handed polarized light, the second liquid crystal polymer layer (12) is configured to reflect right-handed polarized light, and the third liquid crystal polymer layer (13) is configured to absorb incident laser light. The laser protection film has a wide protection angle and good flexibility and is applicable in the fields of laser protection glasses and windshields, and any damage thereon can be easily detected.

Classes IPC  ?

• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• G02F 1/139 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique basés sur des effets d'orientation où les cristaux liquides restent transparents

Abrégé

Disclosed are a multi-stable electric response intelligent window and a preparation method therefor, the multi-stable electric response intelligent window comprises a first light-transmissive conductive substrate (10), a parallel orientation layer (2), a positive polymer-stable cholesteric liquid crystal layer (3), a positive cholesteric liquid crystal layer (4) and a second light-transmissive conductive substrate (11) which are sequentially stacked. According to the multi-stable electric response intelligent window, by changing the magnitude of the access voltage, a colored transparent light transmission state, a colored blur light transmission state, a colorless blur light transmission state, a colorless transparent light transmission state and other diversified light transmission states are achieved. Hence, various demands in people's work and life are met. The multi-stable electric response intelligent window is easy to manufacture, rich in mode and capable of saving energy and protecting the environment and has a good application prospect in the fields of car window glass, home glass window, glass curtain walls and the like.

Classes IPC  ?

• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique

Abrégé

An electrowetting display array substrate, an electrowetting display device, and a manufacturing method thereof. The electrowetting display array substrate comprises a lower substrate (3), a lower electrode layer (4), a hydrophobic layer (5), a pixel wall (6), and a columnar structure (10). The columnar structure is located within a pixel grid and arranged adjacent to a corner of the pixel grid. The invention adds the columnar structure to the pixel grid and controls the position of an opening of an oil-film by means of a coordinated configuration between the columnar structure, an aperture electrode, and an insulation layer (15). By control of the electrical field intensities of different regions consistency of the turn-on state of a pixel and an oil-film movement is realized, improving the display effect of the display accordingly.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

An electroresponsive liquid crystal dimming device comprises a first light-permeable electroconductive substrate (10), a first polymer-network stable liquid crystal layer (20), a positive liquid crystal layer (3), a second polymer-network stable liquid crystal layer (21), and a second light-permeable electroconductive substrate (11) arranged in sequence. The first polymer-network stable liquid crystal layer (20) and the second polymer-network stable liquid crystal layer (21) are each prepared from a liquid crystal mixture by means of ultraviolet curing, wherein the liquid crystal mixture comprises positive liquid crystals, a chiral dopant, a photoinitiator and a photopolymerable liquid crystal monomer, and the first polymer-network stable liquid crystal layer (20) and the second polymer-network stable liquid crystal layer (21) reflect light that is circularly polarized in the same direction. In the liquid crystal dimming device, the positive liquid crystals in all the layers are driven to be switched between different states in response to a voltage applied thereto, so that the liquid crystal dimming device can be adjusted to be dim, transparent, colored, or colorless. The electroresponsive liquid crystal dimming device has good application prospects for automotive window glass, home window glass, and the like.

Classes IPC  ?

• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique

Abrégé

Provided is a laser protection device doped with dye, comprising a polymer layer A and a polymer layer B, the polymer molecules in the polymer layer A are arrayed in a left-hand spiral structure and can reflect left-hand polarization laser, the polymer molecules in the polymer layer B are arrayed in a right-hand spiral structure and can reflect right-hand polarization laser, by combining the polymer layer having the left-hand spiral structure and the polymer layer having the right-hand spiral structure, total reflection on circularly polarized light can be achieved, in addition, the dye can absorb incident laser, so as to enlarge the protection angle of the laser protection film. The laser protection film doped with dye is easy to manufacture, has large protection angle and good flexibility, can modify the prior devices, and has good application prospects in the fields such as laser protective eyewear and lamination film of car windows.

Classes IPC  ?

• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique

Abrégé

Disclosed are a temperature-responsive light reflecting coating and a method for preparing same. The method involves forming a main chain cholesteric phase liquid crystal polymer by means of a polymerization reaction between an acrylate liquid crystal and an amine, and coating the main chain cholesteric phase liquid crystal polymer onto a matrix to form the light reflecting coating, wherein the acrylate comprises a chiral acrylate, and the content of the chiral acrylate liquid crystal and the degree of polymerization of the formed main chain cholesteric phase liquid crystal polymer determine the reflection wavelength of the reflecting coating. The method may further comprise subjecting the main chain cholesteric phase liquid crystal polymer to a cross-linking reaction to obtain a polymer network, thereby forming a solid coating. The preparation of the main chain cholesteric phase liquid crystal polymer merely requires a simple thermally-driven polymerization reaction, in particular a thermally-driven polymerization reaction without any catalyst.

Classes IPC  ?

• C09K 19/36 - Composés stéroïdes formant des cristaux liquides
• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés
• C09D 179/02 - Polyamines

Abrégé

A flexible liquid crystal optical gate and a manufacturing method therefor. A box filled with a liquid crystal mixture is irradiated with ultraviolet light to form a support post structure (5), the bending resistance of the flexible liquid crystal optical gate is improved, and the mechanical stability of the liquid crystal optical gate can be improved while the haze of the flexible liquid crystal optical gate is ensured. The manufacturing method is easy, and after the manufactured flexible liquid crystal optical gate is powered on, the luminance of the liquid crystal optical gate is adjusted by changing the applied voltage.

Classes IPC  ?

• G02F 1/1339 - JointsÉléments d'espacementScellement des cellules

Abrégé

An electrically-responsive infrared reflective device filled with positive liquid crystals (4), a chiral doping agent, a light absorbing agent and a polymer network (6). The light absorbing agent can make the light intensity of ultraviolet light irradiating inside a filled area change gradiently, rendering that the concentration of the polymer network (6) changes gradiently, such that a gradient of pitches (5) of a positive liquid crystal helix structure is formed and a wide bandwidth for reflecting infrared light can be obtained. After being connected to a power supply voltage, the long axes of the molecules of the liquid crystals (4) can rotate in a direction parallel to an electric field; because the anchoring effect of the polymer network (6) on the molecules of the liquid crystals is reduced along with the reduction of the concentration of the polymer network (6), the pitches (5) of the positive liquid crystals (4) are gradually damaged, such that the infrared reflection bandwidth of the infrared reflective device gradually reduces from a long-wave band to 0 nm. The present invention can overcome the defect in the prior art that the infrared reflection bandwidth cannot reduce to zero.

Classes IPC  ?

• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés
• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• G02F 1/139 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique basés sur des effets d'orientation où les cristaux liquides restent transparents

Abrégé

A sensor, and a manufacturing method thereof. The sensor comprises a substrate (1), at least one lower electrode (2), at least one middle electrode (3), and at least one upper electrode (4). The lower electrode (2) is disposed above the substrate (1). The middle electrode (3) and the upper electrode (4) are disposed above the lower electrode (2). The lower electrode (2), the middle electrode (3), and the upper electrode (4) are disposed on different mutually parallel planes within a space. A projection of the lower electrode (2), a projection of the middle electrode (3), and a projection of the upper electrode (4) of the sensor intersect at a projection intersection point to form at least one microbridge. The sensor further comprises a sensing material (5) in contact with the middle electrode (3) and provided on the projection intersection point. The sensor is a capacitive sensor having a variable electrode spacing, and has at least one differential microbridge, thereby realizing high-sensitivity sensing and measurement, and reducing non-linear errors.

Classes IPC  ?

• G01D 5/241 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier la capacité par mouvement relatif d'électrodes de condensateur

Abrégé

Disclosed are a liquid crystal mixture and a temperature-responsive infrared reflection device which is prepared by using a liquid crystal mixture containing potassium laurate, wherein infrared light can pass through the device within a non-working temperature range, and a chiral dopant can form the potassium laurate into a cholesteric phase within a working temperature range; and the potassium laurate has a bi-refringence value that gradually increases along with the increase of temperature between 12.5ºC-26ºC, thereby constantly increasing the infrared reflection bandwidth of the device, and the potassium laurate has a bi-refringence value that gradually decreases along with the increase of temperature between 26ºC-54.5ºC, thereby constantly decreasing the infrared reflection bandwidth of the device. Thus, by means of the adjustment of material proportions of a liquid crystal mixture containing potassium laurate, the infrared reflection bandwidth of the infrared reflection device can vary with temperature, thereby meeting people's needs as the environment changes, and the device can be applied in fields such as homes and buildings.

Classes IPC  ?

• C09K 19/40 - Substances formant des cristaux liquides caractérisées par la structure chimique des constituants formant des cristaux liquides contenant des éléments autres que carbone, hydrogène, halogène, oxygène, azote ou soufre, p. ex. silicium, métaux
• C09K 19/58 - Agents de dopage ou de transfert de charge
• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
• G02B 5/26 - Filtres réfléchissants

Abrégé

A test system based on sensitivity of a humidity sensor, comprising: a humidity sensor to be tested, a capacitance measurement circuit and an upper computer, wherein an input end of the humidity sensor to be tested is connected with an output end of a gas quality and flow controller, and an input end of the gas quality and flow controller is connected with an output end of the upper computer through a data collection card; an input end of the capacitance measurement circuit is connected with an output end of the humidity sensor to be tested; and an output end of the capacitance measurement circuit is connected with an input end of the upper computer. Measurement is made by an existing sensor and a measurement result is transmitted to an upper computer; and a sensor to be tested is used for measurement, and a capacitance change is collected; by processing and analysing data from the two paths, the sensitivity and accuracy of the sensor to be tested are determined, which can be widely applied to the field of sensor testing.

Classes IPC  ?

• G01N 27/00 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques
• G01N 27/22 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance en recherchant la capacité

Abrégé

Provided are an electro-wetting display device and a preparation method therefor. Columnar structures (10) are arranged in a pixel grid enclosed by pixel walls (6). Due to the existence of the columnar structures (10), the shape of an oil film is changed, leading to an increase in the difficulty in climbing a wall by ink (7). When the traditional electro-wetting devices are at 40 V, the ink (7) can climb the wall, but the ink (7) will not climb the wall even if the provided electro-wetting display device is at a voltage of 50 V, thus the electro-wetting display device has good application prospects.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A capacitive sensor and preparation method therefor. By providing differential positive-negative electrode pairs, the differential positive-negative electrode pairs comprising first positive-negative electrode pairs (4, 5, 6) and second positive-negative electrode pairs (11, 12, 13), and providing functional material layers (7, 8, 9) on the first positive-negative electrode pairs (4, 5, 6), differential measurement is achieved, and thus the accuracy and the sensitivity of a capacitive sensor are improved.

Classes IPC  ?

• G01N 27/22 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance en recherchant la capacité

Abrégé

Disclosed in the present invention are a color-changing light-adjusting liquid crystal device and a light adjusting method therefor. A main liquid crystal and a dichroic dye are filled between substrates disposed oppositely; in a non-powered state, the main liquid crystal is subjected to a specific alignment orientation under the induction of an orientation layer; in a powered state, the main liquid crystal is subjected to a reorientation, and dichroic dye molecules rotate along with the reorientation of the main liquid crystal so as to scatter incident light in a visible spectrum, convert a light transmitting state into a light scattering state at the macro level, and display a color of the dichroic dye in the main liquid crystal, thus implementing light adjustment. According to the present invention, the color-changing light-adjusting liquid crystal device does not contain a polymer network, so that a polymerization process is not needed and a polymer aging phenomenon is avoided, thus reducing the production cost, and prolonging the service life of the light-adjusting liquid crystal device.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
• G02F 1/133 - Dispositions relatives à la structureExcitation de cellules à cristaux liquidesDispositions relatives aux circuits

Abrégé

Disclosed by the present invention are a light-dimming device and a light-dimming method therefor: main body liquid crystals and salts of ionizable ions fill a regulating area that is formed by oppositely arranged substrates; the main body liquid crystals are arranged in a specific orientation under the induction of an orientation layer when not being energized and are re-oriented when being energized; ions ionized from the salts of ionizable ions move quickly under the action of a formed electric field and disorganize the specific orientation arrangement of the main body liquid crystals such that the main body liquid crystals move irregularly following the quick movement of ionizable ions so as to scatter incident light in the visible light waveband, thereby regulating the transmission and scattering of visible light and regulating light. Due to no polymer network being present, the liquid crystal device provided by the present invention does not require the use of a reactive monomer and does not require a polymerization process, while polymer ageing does not occur, thereby reducing production costs and extending the service life of the light-dimming device.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides

Abrégé

Disclosed in the present invention is a photo-response dimming device. Spiropyrane is mixed to main liquid crystal, and when a voltage is applied, the spiropyrane can assist in causing electrodynamic instability of the liquid crystal molecules under the effect of an alternating electric field; after spiropyrane molecules are irradiated by ultraviolet rays, configuration of the spiropyrane molecules is transformed from an original closed-loop state into an opened-loop state, along with the generation of positive ions and negative ions, and the generated negative ions and positive ions continuously move under the effect of an external applied alternating electric field, strengthening the electrodynamic instability, compensating the deficiency condition of non-obvious electrodynamics of the liquid crystal molecules caused by an applied relatively low voltage, such that the photo-response dimming device can have a relatively good dimming effect at a relatively low driving voltage.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides

Abrégé

A total-reflection infrared reflective device and a preparation method thereof. The device comprises two transparent conductive substrates (1) disposed opposite to each other. The transparent conductive substrates (1) are packaged to form a sealed cavity (4). Opposing surfaces of the transparent conductive substrates (1) within the sealed cavity (4) are coated with a first liquid crystal layer (5) capable of reflecting left-handed polarized light and a second liquid crystal layer (6) capable of reflecting right-handed polarized light respectively. The first liquid crystal layer (5) comprises a polymer network (7) and a cholesteric liquid crystal (8) with a left-handed helical structure. The second liquid crystal layer (6) comprises a polymer network (9) and a cholesteric liquid crystal (10) with a right-handed helical structure. The cholesteric liquid crystal (8) with a left-handed helical structure can reflect left-handed polarized light, and the cholesteric liquid crystal (10) with a right-handed helical structure can reflect right-handed polarized light, such that the device enables total reflection of infrared light in a certain band. The polymer networks (7, 9) can capture cationic impurities (11) in the first liquid crystal layer (5) or the second liquid crystal layer (6), and drive the cholesteric liquid crystals (8, 10) to move in an electric field, thereby achieving tuning of a reflection band

Classes IPC  ?

• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés

Abrégé

Disclosed in the present invention is an electrically controlled smart window, comprising: two light-transmitting substrates opposite to each other, a power supply module, and a light regulation region between the light-transmitting substrates, the light regulation region being separated into a plurality of light regulation units by a pixel wall, the light regulation units being closely arranged to be latticed, one pole of the power supply module being connected to the pixel wall, and the other pole being connected to the light-transmitting substrate corresponding to the center of each light regulation unit; and liquid crystal polymer particles and a filling liquid with which the space between the two light-transmitting substrates is filled, the surfaces of the liquid crystal polymer particles are charged. According to the present invention, on the basis of Bragg reflection characteristics of cholesteric liquid crystal polymer helix, liquid crystal polymer micron particles having charged surfaces and reflecting light within a specific waveband are adopted as a base reflector, thereby achieving the significant advantages of being easy to manufacture, low cost, and stable performance, without causing interference to electromagnetic signals.

Classes IPC  ?

• G02F 1/1333 - Dispositions relatives à la structure
• G02F 1/167 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur le mouvement de translation des particules dans un fluide sous l’influence de l’application d’un champ caractérisés par l’effet électro-optique ou magnéto-optique par électrophorèse

Abrégé

A reflection device with an adjustable reflection proportion. The infrared reflection device is formed by means of packaging two light-transmitting conductive substrates; an adjustment section (4) is formed between the two light-transmitting conductive substrates; the adjustment section (4) is filled with a liquid crystal mixture; by means of preparing an electrode layer (2) of at least one of the two light-transmitting conductive substrates into an electrode layer (2) composed of at least two mutually independent electrode areas (3), after being respectively connected in series to a switch (11), various electrode areas (3) of the same light-transmitting conductive substrate are jointly connected in parallel to the same electrode of a power supply module (8); and by means of controlling opening and closing of the switch (11), liquid crystal mixtures in a part of the areas can be controlled so that same are in an electric field, and liquid crystal mixtures in another part of the areas can be controlled so that same are not in the electric field, so that reflection proportions of reflected infrared rays in corresponding areas of different electrode areas (3) are different. A reflection proportion of an infrared ray can be adjusted according to actual requirements, so that a proper amount of infrared rays are transmitted into a building, thereby facilitating the adjustment and control of an internal temperature of the building, and reducing the dependence on a temperature adjustment device, such as an air conditioner.

Classes IPC  ?

• G02F 1/1343 - Électrodes
• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique
• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés

Abrégé

A preparation method for an infrared reflecting device, comprising: first preparing a first conductive light-transmissive substrate (8) and a second conductive light-transmissive substrate (9), the two conductive light-transmissive substrates (8, 9) being opposite to each other; preparing parallel orientation layers (3) on the opposite surfaces of the two conductive light-transmissive substrates (8, 9); preparing a liquid crystal box by using the two conductive light-transmissive substrates (8, 9); mixing negative liquid crystal, a chiral dopant (4), liquid crystal monomers (11) and a photoinitiator to obtain a liquid crystal mixture; injecting the liquid crystal mixture in the liquid crystal box; connecting the first conductive light-transmissive substrate (8) to a negative pole of a power supply assembly (6), connecting the second conductive light-transmissive substrate (9) to a positive pole of the power supply assembly (6), capturing impurity cations by using the liquid crystal monomers and/or the chiral dopant (4) so that the liquid crystal monomers and/or the chiral dopant (4) have positive charge to continue moving towards the negative pole direction; and carrying out ultraviolet irradiation (12) to polymerize the liquid crystal monomers (11) so as to form a polymer network (10), and enabling the densities of the polymer network (10) to be distributed in gradient fashion in the direction perpendicular to the conductive light-transmissive substrates (8, 9) to obtain an infrared reflecting device with wide reflection bandwidth. By changing the direction of an electric field, the infrared reflection waveband can be adjusted.

Classes IPC  ?

• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés
• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique

Abrégé

x).

Classes IPC  ?

• G09G 3/34 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante

Abrégé

Provided is a bistable driving method for an electrowetting display, comprising: setting a non-selected voltage for one or more writing lines, the non-selected voltage being less than a voltage obtained by subtracting a digital voltage from a turn-on voltage but greater than a turn-off voltage (S1); switching a row voltage of the one or more writing lines from the non-selected voltage to a selected voltage, the selected voltage being less than the turn-on voltage but greater than the voltage obtained by subtracting the digital voltage from the turn-on voltage (S2); applying the digital voltage to at least one column of digital electrodes to be written, such that a voltage of at least one pixel determined by the one or more writing lines and at least one column to be written is greater than the turn-on voltage (S3); switching the row voltage of the one or more writing lines from the selected voltage to the non-selected voltage, and decreasing the digital voltage applied to the at least one column to a voltage less than a voltage obtained by subtracting the selected voltage from the turn-on voltage (S4); and applying the above steps to the next one or more writing lines until the entire display screen is written (S5). The driving method features rapid speed and high stability and can reduce the number of electrodes needed.

Classes IPC  ?

• G09G 3/34 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante

Abrégé

Three-layer full-color dynamic electronic paper, comprising a substrate, a controller, a first EWOD display layer, a second EWOD display layer and a third EWOD display layer, wherein each of the first, second and third EWOD display layer is comprised of an upper transparent electrode plate, a hydrophobic insulating layer, pixel walls, colored ink, colorless liquid, a lower transparent electrode plate, an encapsulation adhesive, and a driving chip connected to the upper transparent electrode plate and the lower transparent electrode plate respectively; the lower transparent electrode plate of the third EWOD display layer is located above the substrate; the colored ink filled in the first, second and third EWOD display layer is cyan ink, magenta ink and yellow ink, respectively; and, the controller controls voltage waveforms of the three driving chips according to a subtractive color mixture principle of three primary colors for printing, so as to realize full-color displaying.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

Disclosed is an electro-wetting-based microfluidic droplet positioning system, comprising an electro-wetter, a microprocessor, a main control module, a droplet drive module, a droplet positioning module and a power supply. Further disclosed is an electro-wetting-based microfluidic droplet positioning method, comprising the steps of: a system considering a droplet to be measured in an electro-wetter and a hydrophobic insulation layer below the droplet as a capacitor connected in series; a main control chip issuing a command to a droplet drive module, and the droplet drive module driving the movement of the droplet to be measured; a droplet positioning module collecting the current capacitance value of the droplet, and determining a relative position of the droplet; and the system verifying whether the droplet is at a target position. By means of using the highly intelligent and accurate droplet movement positioning feedback system and method, a droplet can be more intuitively and directly positioned and controlled with convenience and high efficiency, thus making it convenient to improve the continuity and movement speed of droplet movement and widely apply the system and method in the technical field of digital microfluidics.

Classes IPC  ?

• G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
• G01N 27/22 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance en recherchant la capacité

Abrégé

A method for preparing an electrowetting display support plate (5), comprising the following steps: preparing a substrate (7) having an electrode layer; preparing a hydrophobic insulating layer (13) and pixel walls (20) on the substrate (7) having an electrode layer, the pixel walls (20) being made of a hydrophilic material; performing plasma etching on the substrate (7) having the pixel walls (20), the power of the plasma etching being 30-1,000 W/m2; and heating the substrate (7) subjected to the plasma etching, so as to recover the hydrophobicity of the hydrophobic insulating layer (13). According to the method, the technical bias that the display support plate (5) being treated by means of the plasma etching would influence the quality of the hydrophobic insulating layer (13) is eliminated; after the plasma etching process is used to treat the display support plate (5), the hydrophilicity of the pixel walls (20) is improved; although a part of the hydrophobic layer can be etched, the hydrophobicity of the hydrophobic insulating layer (13) is recovered after the remaining part is heated, and the pixel walls (20) can maintain the hydrophilic characteristic after being treated by the plasma etching, so that the problem that ink crosses over the pixel walls can be eliminated in the obtained display support plate (5).

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

Disclosed is an electrofluidic support plate and a method for preparing the same, and an electrofluidic device comprising the support plate. The method comprises the following steps of: providing a substrate which has a surface provided with an electrode layer; arranging a first amorphous fluoropolymer layer on the surface of the substrate, and carrying out hydrophilic modification on a surface of the amorphous fluoropolymer layer; arranging pixel walls on the amorphous fluoropolymer layer after hydrophilic modification; arranging a second amorphous fluoropolymer layer which is a hydrophobic layer; the second amorphous fluoropolymer layer covering all surfaces of the pixel walls and a groove area encircled by the pixel walls; filling the groove area encircled by the pixel walls with a protective material; removing the second amorphous fluoropolymer layer not covered by the protective material and on a top of the pixel walls; and removing the protective material.

Classes IPC  ?

• G09F 9/37 - Dispositifs d'affichage d'information variable, dans lesquels l'information est formée sur un support, par sélection ou combinaison d'éléments individuels dans lesquels le ou les caractères désirés sont formés par une combinaison d'éléments individuels à éléments mobiles
• G09G 3/34 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante
• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables
• G02F 1/167 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur le mouvement de translation des particules dans un fluide sous l’influence de l’application d’un champ caractérisés par l’effet électro-optique ou magnéto-optique par électrophorèse

Abrégé

An electric response infrared reflection device and a preparation method therefor. The device comprises three light-transmissive conductive substrates which are oppositely arranged. Two adjacent light-transmissive conductive substrates of the three light-transmissive conductive substrates are respectively packaged to form a first adjusting area (3) and a second adjusting area (4). Both the first adjusting area (3) and the second adjusting area (4) are filled with liquid crystal layers. Each of the liquid crystal layers comprises a mixed liquid crystal material. The mixed liquid crystal material comprises a chiral nematic phase liquid crystal (6), a monomer, a photoinitiator, and a chiral dopant. The spiral direction of the chiral nematic phase liquid crystal (6) in the first adjusting area (3) is opposite to the spiral direction of the chiral nematic phase liquid crystal (6) in the second adjusting area (4), so that the total reflection of an infrared band can be implemented. The monomer is polymerized into a netted polymer (10) under the effect of the photoinitiator, the netted polymer (10) can capture impurity positive ions (11) in a liquid crystal mixture, the adjusting areas are placed under an electric field, the motion of the impurity positive ions (11) drives the chiral nematic phase liquid crystals (6) to move, and thus the screw pitches of chiral negative liquid crystals have a certain gradient, so that the infrared reflection bandwidth is increased.

Classes IPC  ?

• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés

Abrégé

A self-support electrowetting display and a preparation method therefor. A support structure (12) is provided on an upper surface of a pixel wall structure (6). The support structure is directly prepared on the pixel wall, and the problem of the support structure falling into a pixel grid does not exist. Basically, the basic structure of an electrowetting display is not changed, and the performances of a display device will not be affected. There is no need to add any component into a polar electrolyte solution so that component residual will be avoided and pollution of two functional solutions will not occur. The thickness of a sealant is reduced to reduce the thickness of the whole display device and realize the preparation of an ultrathin display.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A drying-wetting separated filling method and filling equipment for an electrowetting display apparatus, the filling method being as follows: first, filling a nonpolar solution (5) into a pixel grid in the air; after filling the nonpolar solution into the pixel grid, then filling with a polar solution (4) to immediately cover the filled nonpolar solution (5); compared with filling the nonpolar solution (5) in the polar solution (4), filling the nonpolar solution (5) directly in the air has better filling uniformity and easier operation and control. In said method, filling with the polar solution (4) and the nonpolar solution (5) is easy, having a high filling efficiency without air bubble residue. The filling equipment comprises a cofferdam (15), which is provided on a bottom substrate which has a pixel grid structure, and uses a scraper (10), wherein an inner portion is provided with a liquid filling channel (11), the scraper (10) being used to fill the nonpolar solution (5) into the pixel grid; the scraper (10) and the cofferdam (15) form a peripherally sealed filling space on a side of the scraper (10), the polar solution (4) being poured into the sealed space, and the polar solution (4) instantly covering the filled nonpolar solution (5).

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A patterned light-dimming glass and a preparation method therefor. The light-dimming glass comprises two oppositely disposed transmitting conductive substrates that are packaged to form a regulating area (6); each of the two transmitting conductive substrates comprises a substrate (1) and an electrode layer (2) installed on a surface opposite to the substrate (1); and at least one of the two electrode layers (2) is an electrode layer (2) having a pattern. When voltage is not applied to the transmitting conductive substrates, the light-dimming glass is transparent, and the pattern of the electrode layer (2) is displayed. The method for preparing the electrode layer (2) having a pattern comprises the steps of: preparing a whole electrode layer (2') on the substrate (1); coating a photoetching glue layer (3') on the whole electrode layer (2'); preparing a photoetching plate (4) which has a pattern, and covering the the photoetching plate (4) over photoetching glue layer (3'); exposing; developing; postbaking; and corroding the electrode layer (2') which is not covered by the photoetching glue layer (3'), thus obtaining the electrode layer (2) having a pattern. By using said method to prepare the electrode layer (2), a pattern having an accuracy which achieves micron level may be prepared.

Classes IPC  ?

• G02F 1/1343 - Électrodes
• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés

Abrégé

Disclosed is a method for eliminating an image border of electrophoretic electronic paper. The method comprises the following steps: S1, obtaining gray-scale drive waveform information and gray-scale position information, wherein the drive waveform information comprises a level value and a duration corresponding to same; S2, outputting, based on an end level value of a first gray scale, a level duration and a starting level value of a second gray scale, adjustment waveform information, wherein the adjustment waveform information comprises a level value, an embedding time and an embedding position of a waveform; and S3, modifying, based on the adjustment waveform information, the gray-scale drive waveform information, and controlling, based on the modified gray-scale drive waveform information, the output of a drive electrode. The device is used for realising the corresponding method. By means of embedding a cancellation waveform in drive waveforms, greatly affected by a fringe electric field, at two transformation gray scales, and by means of staggered pressurisation and synchronous pressurisation, the impact of the fringe electric field on the movement of electronic paper micro-capsules is eliminated, thereby effectively reducing border ghosting.

Classes IPC  ?

• G09G 3/34 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante

Abrégé

An electrowetting optical device comprises an upper substrate (17), a lower substrate (18), and an encapsulation liquid filled in a cavity formed between the upper substrate (17) and lower substrate (18) arranged opposite to each other. The upper substrate (17) comprises a first substrate (1). The first substrate (1) is provided with an auxiliary electrode (2-a) and a pixel electrode (2-b). A hydrophobic layer (4) is provided at the auxiliary electrode (2-a) and the pixel electrode (2-b). The lower substrate (18) comprises a second substrate (9). The second substrate (9) is provided with a common electrode (11). A surface of the common electrode (11) is provided with a supporting pole for contraction and aggregation of a nonpolar solution (12). A hydrophobic structure (6) is provided at an upper end of the supporting pole for shrinkage and aggregation of a nonpolar solution (12). Also provided is a manufacturing method of the electrowetting optical device. In the invention, an auxiliary electrode and a pixel electrode are used to perform separation and contraction of a nonpolar solution, thereby solving a problem of deteriorating optical performance resulting from an excessively high proportion of area occupied by a conventional pixel wall in a total area of a device, and preventing device failure caused by damage to the inherent properties of a hydrophobic insulating layer as a result of constructing of a pixel wall at a surface thereof.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

Disclosed are an infrared reflection device with a tunable wave band, and a manufacturing method therefor. A chiral dopant, a liquid crystal monomer that can be photo-polymerized, a photo-initiator and a negative liquid crystal are mixed to obtain a liquid crystal mixture. The liquid crystal mixture is filled in two light transmitting substrates (1, 2) to which a voltage can gain access. The photo-initiator initiates, under the action of ultraviolet light, polymerization of the liquid crystal monomer that can be photo-polymerized to form a polymer network (9). The chiral dopant enables the negative liquid crystal to form a cholesteric liquid crystal in a helical structure (10). The cholesteric liquid crystal has a single pitch. A specific pitch structure reflects a wave band of infrared light with specific wave length. The polymer network (9) can capture positive impurity ions. In a powering-on state of the light transmitting substrates (1, 2), the positive impurity ions (11) move towards the light transmitting substrates (1, 2) electrically connected to a negative electrode of a power source (3), and the polymer network (9) drives the cholesteric liquid crystal to move, so that the pitch of the cholesteric liquid crystal changes, causing the infrared reflection bandwidth to change from narrow to wide.

Classes IPC  ?

• G02F 1/1334 - Dispositions relatives à la structure basées sur des cristaux liquides dispersés dans un polymère, p. ex. cristaux liquides micro-encapsulés
• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique

Abrégé

A light adjusting glass based on subtractive colour mixing. The glass comprises two light-transmitting substrates (1) arranged opposite each other. An adjustment region (2) is encapsulated and formed between the two light-transmitting substrates (1). The adjustment region (2) is filled with a liquid crystal mixture, the liquid crystal mixture comprising photopolymerizable liquid crystal monomers, dichroic dyes (4), normal dyes (5), photoinitiators and negative liquid crystals (6). When a voltage is not applied, the negative liquid crystals (6) are in a single-domain arrangement perpendicular to the light-transmitting substrates (1), and molecules of the dichroic dyes (4) are also perpendicular to the light-transmitting substrates (1); and since the dichroic dyes (4) have the poorest light-absorption property and are thus in a colourless state, the transmittance of light rays is highest at this moment. When the voltage is applied, the negative liquid crystals (6) redirect in a direction parallel to the light-transmitting substrates (1), and during the redirection process, the dichroic dyes (4) are driven to rotate, and because of the irregular distribution of polymer networks (3), the negative liquid crystals (6), after the redirection, are in a multi-domain arrangement parallel to the light-transmitting substrates (1), such that the light adjusting glass is converted from a light-transmitting state into a light-scattering state, and according to subtractive colour mixing, the glass is in a fuzzy colour state.

Classes IPC  ?

• G02F 1/1333 - Dispositions relatives à la structure
• C09K 19/60 - Colorants pléochroïques

Abrégé

Electro-response-based reverse switchable glass and a preparation method therefor. The switchable glass includes two light-transmitting substrates arranged oppositely, and the space between the two light-transmitting substrates is packaged to form an adjusting area, the adjusting area being filled with a liquid crystal mixture (5). The liquid crystal mixture (5) comprises liquid crystal monomers, a photoinitiator and negative liquid crystals (6). The liquid crystal monomers can be polymerized to form a polymer network (7), and the negative liquid crystals (6) are dispersed in the polymer network (7). When no voltage is applied, the negative liquid crystals (6) are arranged perpendicular to the light-transmitting substrates in a single domain, and visible light is transmitted. When a voltage is applied, the negative liquid crystals (6) are arranged parallel to the light-transmitting substrates in multiple domains, enhancing light scattering, so that the switchable glass is switched from a light transmitting state into a light scattering state. When switching from a power-on state to a power-off state, the reverse switchable glass drives, by relying on the restoration function of the polymer network (7), the negative liquid crystals (6) to turn, in a response speed higher than that of traditional switchable glass; the polymer network (7) is formed in the adjusting area, so that the transmittance of the switchable glass is lower

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides

Abrégé

Provided are a thermal response infrared total reflection device and a manufacturing method thereof. The thermal response infrared total reflection device comprises three light-transmissive substrates (1, 2, 3). Regions between two adjacent substrates of the three light-transmissive substrates (1, 2, 3) are respectively sealed to form a first adjustment region (4) and a second adjustment region (5). A liquid crystal layer is filled in each of the first adjustment region (4) and the second adjustment region (5). The liquid crystal layer comprises a mixed liquid crystal material and spacers (6) for controlling the thickness of the liquid crystal layer. The mixed liquid crystal material comprises a thermal response liquid crystal material and a chirality additive. The spacers (6) are distributed in the mixed liquid crystal material. The mixed liquid crystal material exhibits a chiral nematic phase within a service temperature range of an infrared reflection thin film. A helical direction of the mixed liquid crystal material in the first adjustment region (4) and a helical direction of the mixed liquid crystal material in the second adjustment region (5) are opposite. A helical pitch of the mixed liquid crystal material changes with temperature. In the invention, mixed liquid crystal materials exhibiting chiral nematic phases having opposite helical directions are oppositely arranged in the infrared total reflection device, thereby realizing reflection of infrared light in different polarization-rotation directions.

Classes IPC  ?

• G02F 1/139 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique basés sur des effets d'orientation où les cristaux liquides restent transparents
• G02F 1/1347 - Disposition de couches ou de cellules à cristaux liquides dans lesquelles un faisceau lumineux est modifié par l'addition des effets de plusieurs couches ou cellules

Abrégé

The present invention relates to the field of polymers. Disclosed is a preparation method for a block copolymer. The preparation method specifically comprises: using an azide group-terminated polymer and an (α, β)-unsaturated ester-terminated polymer as raw materials; performing a cycloaddition reaction in a heating condition; and performing product re-precipitation and vacuum drying to obtain a block copolymer. In the present invention, preparation methods for the two polymer raw materials are simple, the reaction is easy to control, a protective gas is not needed, and aftertreatment is convenient. Compared with a conventional method for preparing a block copolymer, the present invention provides a brand new template that can be used for preparing various block copolymers.

Classes IPC  ?

• C08G 81/00 - Composés macromoléculaires obtenus par l'interréaction de polymères en l'absence de monomères, p. ex. polymères séquencés
• C08G 81/02 - Composés macromoléculaires obtenus par l'interréaction de polymères en l'absence de monomères, p. ex. polymères séquencés au moins un des polymères étant obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carbone

Abrégé

A method for preparing silver nanoparticles, comprising the following steps: 1) obtaining silver nitrate and a water-soluble stabilizer for measurement, and placing the same in a reaction vessel; 2)adding water to the reaction vessel; 3) subjecting the solution in the reaction vessel to electromagnetic stirring at room temperature under normal pressure and in a lighted environment, until the color of the solution in the reaction vessel turns red, so as to form silver nanoparticles in the solution; 4) after the reaction of the solution in the reaction vessel from step 3) is completed, storing the reaction vessel containing the solution in the dark, and extracting the silver nanoparticles from the solution. The method for preparing silver nanoparticles does not require the introduction of any reducing agent, is free of by-products and environmentally friendly. The preparation process is simple, and low-cost and low in energy consumption.

Classes IPC  ?

• B22F 9/18 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par un procédé chimique avec réduction de mélanges métalliques
• B82Y 40/00 - Fabrication ou traitement des nanostructures

Abrégé

A method for regulating a chiral liquid crystalline polymer film through laser mechanics and an application thereof. The method comprises the steps of: coating a layer of laser irradiation deformation layer (1) on a nematic liquid crystal polymer film having a chiral helical structure (2); and radiating the laser irradiation deformation layer (1) with a pulsed laser (3). The radiation direction of the pulsed laser (3) coincides with the axial direction of the chiral helical structure (2). The surface and interior of the laser irradiation deformation layer (1) will be momentarily excited to produce a large amount of plasma, which is converted into a partial high voltage in the axial direction of the nematic liquid crystal polymer film, so that the pitch of the helix of the nematic liquid crystal polymer film is changed, and that the pitch of the nematic liquid crystal polymer film can be regulated mechanically or even regulated with gradient.

Classes IPC  ?

• G02F 1/139 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique basés sur des effets d'orientation où les cristaux liquides restent transparents

Abrégé

An electrically-responsive smart glass, a preparation method therefor, and a light regulation method thereof. The smart glass comprises two light-transmissive substrates arranged opposite to each other, a power supply assembly, and a regulation region filled between the two light-transmissive substrates. The regulation region is filled with a liquid crystal mixture (8). The liquid crystal mixture (8) comprises a dye liquid crystal (4), a negative liquid crystal (5), and infrared reflective film fragments (6). The two light-transmissive substrates are electrically connected to the two poles of the power supply assembly, respectively. When the light-transmissive substrates are in an OFF state, the dye liquid crystal (4), the negative liquid crystal (5), and the infrared reflective film fragments (6) are arranged perpendicular to the light-transmissive substrates in single-domain fashion, and are transmissive to visible light and infrared light. When the light-transmissive substrates are in an ON state, the dye liquid crystal (4), the negative liquid crystal (5), and the infrared reflective film fragments (6) are arranged parallel to the light-transmissive substrates in multi-domain fashion, and can absorb and scatter part of visible light and reflect part of infrared light.

Classes IPC  ?

• G02F 1/137 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p. ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique

Abrégé

An infrared reflective film, a preparation method, and an infrared reflection method. The infrared reflective film comprises two substrates (1) that are packaged to form a regulation region; the regulation region is filled with a liquid crystal layer; the liquid crystal layer comprises a mixed liquid crystal material (3) and introns (4) used for controlling the thickness of the liquid crystal layer. The mixed liquid crystal material (3) comprises a thermally-responsive liquid crystal material and a chiral additive; the introns (4) are dispersed in the mixed liquid crystal material (3). The preparation method for an infrared reflective film comprises: preparing two substrates (1); preparing alignment layers (5) on opposite surfaces of the two substrates (1); taking introns (4) and placing the introns (4) on one substrate (1), placing the other substrate (1) on the introns (4), and arranging the two substrates (1) opposite to each other to prepare a liquid crystal cell; and injecting a mixed liquid crystal material (3) into the liquid crystal cell. Within the use temperature range of the infrared reflective film, the mixed liquid crystal material (3) is of a chiral nematic phase and the screw pitch thereof can change as the temperature changes, thereby implementing reflective waveband regulation of the infrared reflective film, to meet the requirement for light regulation.

Classes IPC  ?

• G02F 1/1333 - Dispositions relatives à la structure

Abrégé

A preparation method for a spacer of an electro-fluid display, comprising the following steps: dissolving one or more polymer monomer materials in an electrolyte solution; inputting a required spacer pattern into a computer system; performing substrate positioning and alignment; and a computer controlling a high-precision laser beam during scanning on an upper substrate of a packaged electro-fluid display, so that the polymer monomer material is polymerized and cured on the upper substrate of the electro-fluid display to form a plurality of spacers. A computer system is used to directly control a laser beam during scanning on an upper substrate for the preparation of a spacer, so that the process is simple, a mask plate is not required, the processes of preparation of the mask plate and the accurate alignment of the mask plate are avoided, and positioning is accurate. In addition, large-area irradiation of a substrate is not required, the heat is low, defective products caused by high temperatures are not generated, the irradiation time is short, and the process is faster.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

An infrared reflection device based on electrical response and a preparing method therefor. A chiral doping agent, chiral monomers, a photoinitiator, an ultraviolet absorbent are mixed with negative liquid crystals to obtain a liquid crystal mixture (6), and the liquid crystal mixture (6) is filled between two light-transmissive substrates to which a voltage can be applied. Ultraviolet light irradiates a liquid crystal cell from one side of a first light-transmissive substrate (1), the photoinitiator drives, under the effect of the ultraviolet light, the chiral monomers to polymerize into a chiral polymer network (7), and the concentration of the generated chiral polymer network (7) has a concentration gradient, that is, the chiral monomer concentration has a concentration gradient, thereby forming a pitch gradient of a negative liquid crystal helical structure (3), being able to obtain a wide bandwidth for reflecting infrared light. The chiral polymer network (7) can capture impurity cations (5) in the liquid crystal mixture (6), and in the state that the substrates are powered on, the impurity cations (5) drive the chiral polymer network (7) to move such that the chiral monomer concentration gradient is decreased and the pitch gradient is decreased, thereby achieving the purpose of changing the bandwidth from wide to narrow.

Classes IPC  ?

• G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides

Abrégé

Provided is a method for inducing titanium dioxide nano particles to form a pearl chain structure through self-assembly, comprising: coating the surfaces of titanium dioxide nano particles with a layer of a polymer through modification, then dispersing the modified titanium dioxide nano particles in a non-polar solvent, and subjecting the titanium dioxide nano particles to directed self-assembly by utilizing an external direct-current electric field so as to form a pearl chain structure. In the method, by performing surface modification on the titanium dioxide nano particles, and by using a direct-current electric field with a significantly decreased field intensity to control colloidal particles so as to form the pearl chain structure through self-assembly, an electrode is protected; the self-assembly speed can be increased, the self-assembly time can be shortened, and a relatively high preparation efficiency can be guaranteed; and the self-assembly can be completed in a non-polar solvent, thus widening the use range of the nano particles and the solvent. The pearl chain structure formed can be widely used in photoelectronic devices and sensors.

Classes IPC  ?

• C01G 23/047 - Dioxyde de titane

Abrégé

An oil puncture controlled starting system for an EFD apparatus and manufacturing method therefor, wherein the EFD display structure comprises a base arranged below a lower electrode, and the base is provided with a step, such that a first liquid has a first thickness outside the step and a second thickness on the step, which is less than the first thickness, such a thickness difference renders the first liquid on the step to be punctured by a second liquid firstly when a lower voltage is applied between a upper electrode and the lower electrode, and the first liquid is pushed by the second liquid to move from a first area to a second area.

Classes IPC  ?

• G02B 1/06 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de fluides en cellules transparentes
• G09G 3/34 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante
• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A type of smart glass, comprising two translucent substrates (1, 2) positioned opposite one another, a power supply assembly and an electrode. The two poles of the electrode are symmetrically disposed on opposing surfaces of said translucent substrates (1, 2), said electrode comprising multiple discrete point electrodes (3), the two poles of the electrodes being electrically connected to the two poles of the power supply assembly, respectively. An adjustment layer (5) is provided between the two translucent substrates (1, 2), said adjustment layer (5) containing a particle dispersion. While the electrodes are not receiving voltage, the particles (6) in the particle dispersion are randomly dispersed, and the smart glass is in its frosted state; while the electrodes are receiving voltage, the particles (6) in the particle dispersion hold a charge, the particles (6) gather opposite the point electrodes (3), and the smart glass is in its transparent state. When there is no electricity, the particles (6) are randomly dispersed, and the adjustment layer (5) has high reflectivity, allowing the smart glass to realize a frosted state; when electricity is applied, the particles (6) are polarized and charged, and gather opposite the point electrodes (3), allowing light rays to pass through the gaps between point electrodes (3), lowering the reflectivity of said adjustment layer (5) and allowing the smart glass to realize a transparent state.

Classes IPC  ?

• G02F 1/01 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur
• G02F 1/17 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des éléments à absorption variable non prévus dans les groupes

Abrégé

Disclosed are a pure black ink dye and preparation method therefor, and an electrowetting displaying ink. The preparation method for the pure black ink comprises the following steps: adding a sulphur black dye, sodium sulphide, and a haloalkane to a solvent, and heating for refluxing; cooling and pouring out the supernatant liquor to obtain the pure black ink. The electrowetting displaying ink can be obtained by dissolving the pure black ink into an organic solvent. Because the structure of the sulphur black dye is complex, the components thereof have not been accurately analyzed yet. However, it is considered that the molecular structure of the sulphur black dye contains a great quantity of modifiable groups such as amino groups, hydroxyl groups, and sulphydryl groups. The present invention designs and synthesizes a pure black ink dye satisfying electrowetting displaying requirements by use of the special structure of the sulphur black dye. The prepared ink dye is pure black, and the solubility thereof in a non-polar solvent, decane, reaches 100%.

Classes IPC  ?

• C09B 67/28 - Préparations à base de colorants de cuve ou de colorants au soufre
• C09D 11/02 - Encres d’imprimerie

Abrégé

A driving method for reducing a ghosting artifact of an electrophoretic display is provided for reducing ghosting artifacts without prolonging driving waveform time and scintillation by improving a driving waveform design of the electrophoretic display. The method comprises the four steps of: erasing an original image (S1); activating activity of electrophoretic particles (S2), carrying out electrophoretic particle holding (S3), and writing in a new image (S4). At the electrophoretic particle holding (S3) stage, the electrophoretic particle holding is carried out for a preset duration time (tx), wherein the voltage of the driving waveform is 0V within the preset duration time (tx).

Classes IPC  ?

• G09G 3/34 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante

Abrégé

A quick response method for multistage gray scale electrophoresis electronic paper, for use in driving multistage gray scale electrophoresis electronic paper. The method comprises the steps of: A, increasing the absolute value of a drive voltage to be greater than 15V; B, applying a voltage waveform that is opposite to the electric property of an original image to erase the original image; C, applying a square wave voltage waveform having a duty cycle of 50% to activate electrophoresis particles; and D, applying a voltage waveform having a proper length to flash a new gray scale. Quick response of multistage gray scale electrophoresis electronic paper is achieved by properly increasing the drive voltage and changing different drive voltage waveform lengths. Specifically, in step D, quick response of four-stage gray scale electrophoresis electronic paper is achieved by applying a positive voltage, and quick response of electrophoresis electronic paper having a gray scale greater than a four stage gray scale is achieved by applying both a positive voltage and a negative voltage.

Classes IPC  ?

• G09G 3/34 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante

Abrégé

A full-color dynamic three-layer electronic paper comprises a substrate, a controller, a first electrowetting display layer, a second electrowetting display layer and a third electrowetting display layer. Each of the first electrowetting display layer, second electrowetting display layer and third electrowetting display layer is formed by a transparent upper electrode plate (25), insulation hydrophobic layers (23, 26, 27), pixel barriers (22), a color ink, a colorless liquid (28), a transparent lower electrode plate (24), a sealing adhesive (21) and a drive chip. The drive chip is connected to the transparent upper electrode plate (25) and transparent lower electrode plate (24). The transparent lower electrode plate (24) of the third electrowetting display layer is over the substrate. The color inks charged in the first electrowetting display layer, the second electrowetting display layer and the third electrowetting display layer are respectively a blue ink, a red ink and a yellow ink. The controller controls, on the basis of the subtractive color principle for the three printing primary colors, voltage waveforms of the three drive chips to realize full-color display. The present invention has advantages in many aspects and a broad range of applications, and can be widely used in the field of electronic paper.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

Electrofluid support plates (10, 20) and a preparation method therefor, and an electrofluid apparatus comprising the support plates (10, 20). The preparation method comprises steps of: providing a substrate (1); disposing a first amorphous fluorine-containing polymer layer (4) and carrying out hydrophilic modification on a surface thereof; disposing pixel walls (5); disposing a second amorphous fluorine-containing polymer layer (6), the second amorphous fluorine-containing polymer layer (6) covering overall surfaces of the pixel walls (5) and groove areas encircled by the pixel walls (5); filling the groove areas encircled by the pixel walls (5) with a protective material (7); removing parts, not covered by the protective material (7), of the second amorphous fluorine-containing polymer layer (6) at the tops of the pixel walls (5); and removing the protective material (7). The method avoids the problem of unattainable backflow of ink and the problem of reliability caused by a damage of a surface of a hydrophobic layer, and prevents a gap from being formed between the hydrophobic layer and the pixel walls (5), thereby resolving the problem of a short-circuit between the upper and the lower support plates (10, 20) caused by the gap between the hydrophobic layer and the pixel walls (5). The method can be applied to an electrofluid apparatus.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A display structure having a high-brightness diffuse reflector, an electrowetting display structure based on the display structure, an in-cell type electrowetting display structure and a manufacturing method thereof are disclosed. The display structure comprises panel glass (1), a display layer (2) and substrate glass (3), wherein a high-brightness diffuse reflection polymer thin film material (4) is arranged under the substrate glass (3); the panel glass (1), the display layer (2), the substrate glass (3) and the diffuse reflection polymer thin film material (4) are stacked in sequence. According to the display structure and manufacturing method thereof of the invention, the required diffuse reflection and contrast ratio approximate to paper can be provided by placing a high-brightness diffuse reflection polymer thin film under a substrate or a display layer of a plate display structure as a diffuse reflection layer or a diffuse reflector.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables
• G02F 1/03 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des céramiques ou des cristaux électro-optiques, p. ex. produisant un effet Pockels ou un effet Kerr
• G02F 1/29 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de la position ou de la direction des rayons lumineux, c.-à-d. déflexion
• G02B 5/23 - Filtres photochromiques
• G02F 1/133 - Dispositions relatives à la structureExcitation de cellules à cristaux liquidesDispositions relatives aux circuits
• G02B 5/02 - DiffuseursÉléments afocaux
• G02B 1/04 - Éléments optiques caractérisés par la substance dont ils sont faitsRevêtements optiques pour éléments optiques faits de substances organiques, p. ex. plastiques
• G02B 5/08 - Miroirs

Abrégé

Disclosed is an improved alignment method for EFD assembly. The method comprises the following steps: (1) immersing a substrate (22) completely in a container filled with a liquid; (2) immersing a cover plate (21), to which a sealing piece (23) is adhered, completely in the container filled with a liquid and placing the cover plate on the substrate (22), such that the cover plate (21) and the substrate(22) are combined to form an EFD cell assembly, wherein there is no direct contact between the sealing piece (23) on the cover plate (21) and the substrate (22); (3) removing the EFD cell assembly from the container, wherein a liquid layer is kept between the sealing piece (23) on the cover plate (21) and the substrate (22); (4) aligning the cover plate (21) and the substrate (22); and (5) forming a permanent sealing between the sealing piece (23) on the cover plate (21) and the substrate (22). The invention greatly improves the reversibility and modifiability of alignment, and therefore increases the yield while ensuring the alignment precision.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

A method for reducing picture switching flickers of an electrophoretic display and an electrophoretic display. The method comprises: receiving target grayscale information displayed by a pixel point; determining a driving waveform of a direct current balance compensation driving signal by a new grayscale refreshing and writing driving signal of the pixel point in a previous state; driving the pixel point to be in a first extreme state from an original grayscale by means of a first extreme state driving signal; driving the pixel point to switch to a second extreme state from the first extreme state by means of a second extreme state driving signal; then applying the direct current balance compensation driving signal to enable an electrophoretic display to keep a direct current balance; and finally switching a pixel to a target grayscale by means of the new grayscale refreshing and writing driving signal, wherein a voltage polarity of the second extreme state driving signal is the same as a voltage polarity of the direct current balance compensation driving signal. Optimizing a driving waveform and integrating various stages of the driving waveform may reduce the number of times a display screen of an electrophoretic display device flickers, and improve the degree of comfort during picture switching of an electrophoretic electronic paper.

Classes IPC  ?

• G09G 3/34 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante

Abrégé

An ink filling device and method for an electro-wetting display. The method comprises: coating an ink on a carrier (14) having lipophilic and hydrophobic properties to at least form a to-be-transferred ink film having a size matching the size of a display area of a display substrate (16), wherein the lipophilic property of the carrier is weaker than a lipophilic property of a hydrophobic layer (5) in pixel grids (9); and correspondingly bringing the to-be-transferred film on the carrier into contact with a portion of the display substrate (16) having the pixel grids (9), such that the ink coated on the carrier is transferred to the pixel grids (9) to realize ink filling. Employing the method to fill an ink in an electro-wetting display has the advantages of uniform ink filling, good controllability, a fast filling speed, and applicability to batch production.

Classes IPC  ?

• G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables

Abrégé

Disclosed is a method for measuring a performance parameter of micro/nano particles, comprising establishing a system for measuring a performance parameter of micro/nano particles, and the system comprises a testing container, a constant-temperature control regulator, an ultrasonic module, a noise cancellation module, and a signal analysis and processing module. The mechanical characteristic parameters of the particles are calculated and obtained by using a ratio of the backscatter intensity to the incident intensity of free micro/nano particles toward ultrasonic waves in a solid/liquid continuous phase medium and parameters such as the sound pressure, particle concentration, particle size, medium viscosity, and medium density. The method can realize accurate measurement of the elasticity coefficient and the surface tension of the micro/nano particles in the same testing system and testing environment, to provide accurate experimental data for the study of the relationship between the elasticity coefficient and the surface tension, thereby enabling deeper understanding of material characteristics and improving service life and quality of the material.

Classes IPC  ?

• G01N 15/00 - Recherche de caractéristiques de particulesRecherche de la perméabilité, du volume des pores ou de l'aire superficielle effective de matériaux poreux
• G01N 29/00 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet

Abrégé

Disclosed are a DNA fragmentation method and a device for implementing same. A DNA solution is continuously bubbled, transient fluid shear stress produced in the process of bubble bursting acts on DNA molecules in the solution, the DNA molecules can be sheared off when the shear stress is greater than the intermolecular force in DNA molecular chains, and thereby the effect of DNA molecule fragmentation is achieved. The volume of a required DNA sample is small; moreover, the experiment process is easy to control, the required device is simple, the cost is low, operation is simple, blockage cannot easily take place, a high pressure is not needed, a large amount of dead volume cannot occur, sample contamination cannot be caused, and the random shearing of DNA samples is realized; the present invention has the advantages of relative fragment length controllability, low fragment length dispersity and so on, and sheared DNA fragments are uniformly distributed in a predetermined size.

Classes IPC  ?

• C12N 15/10 - Procédés pour l'isolement, la préparation ou la purification d'ADN ou d'ARN
• C12M 1/36 - Appareillage pour l'enzymologie ou la microbiologie comportant une commande sensible au temps ou aux conditions du milieu, p. ex. fermenteurs commandés automatiquement
• C12Q 1/68 - Procédés de mesure ou de test faisant intervenir des enzymes, des acides nucléiques ou des micro-organismesCompositions à cet effetProcédés pour préparer ces compositions faisant intervenir des acides nucléiques

Abrégé

A device (100) combining LED display and reflective display, comprising: at least one display panel (10), comprising an LED component (12), a reflective display component (11) and a support piece (13) configured to support the LED component (12) and the reflective display component (11), the LED component (12) and the reflective display component (11) being arranged in a way of getting close to each other; at least one driving unit (40), separately connected to the LED component (12) and the reflective display component (11) so as to simultaneously or separately change display statuses of the LED component (12) and the reflective display component (11); and a control unit (50), connected to the driving unit (40) and configured to send a control command to the driving unit (40) according to a light environment where the device (100) is positioned so as to change the display statuses of the LED component (12) and the reflective display component (11). The device (100) not only can use a reflective display component (11) with a higher contrast ratio to display in the daytime, but also can use an LED component (12) with a higher brightness to display at night, thereby saving energy while guaranteeing an excellent display effect.

Classes IPC  ?

• G09F 9/33 - Dispositifs d'affichage d'information variable, dans lesquels l'information est formée sur un support, par sélection ou combinaison d'éléments individuels dans lesquels le ou les caractères désirés sont formés par une combinaison d'éléments individuels à semi-conducteurs, p. ex. à diodes
• G02F 1/167 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur le mouvement de translation des particules dans un fluide sous l’influence de l’application d’un champ caractérisés par l’effet électro-optique ou magnéto-optique par électrophorèse
• G02F 1/15 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur un effet électrochromique

Abrégé

A method for encapsulating an electronic fluid display, comprising: a primary sealing step, attaching a primary sealing structure between an upper substrate (13) and a lower substrate (10); an accurate alignment step, translating and fine-tuning the upper substrate (13) and/or the lower substrate (10) on planes thereof on the premise that primary sealing is maintained; and a secondary sealing step, attaching a secondary sealing structure between the upper substrate (13) and the lower substrate (10), and fixing the upper substrate (13) and the lower substrate (10) using the secondary sealing structure, wherein the primary sealing step is implemented in an electrolyte solution (17), and the accurate alignment step and the secondary sealing step are implemented in a gas environment. In the method, after primary sealing is implemented in an electrolyte solution (17), an electronic fluid display is moved into a gas environment to implement accurate alignment and secondary sealing fixation, so that the defect in the existing process that all encapsulation processes are completed in the electrolyte solution (17) is overcome, the costs of the final encapsulation process can be greatly reduced, and the yield of products and the working efficiency are improved. Thus, the method can be applied to the encapsulation of an electronic fluid display.

Classes IPC  ?

• G02F 1/167 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur le mouvement de translation des particules dans un fluide sous l’influence de l’application d’un champ caractérisés par l’effet électro-optique ou magnéto-optique par électrophorèse