Abstract

The present invention relates to a metal complex, an organic electroluminescent element containing same, and a consumer product. The metal complex of the present invention is used as a luminescent material to obtain a green phosphorescent material with a high luminescent efficiency. In addition, the prepared luminescent material has a good thermal stability. The organic electroluminescent element of the present invention emits a green phosphorescence and has advantages of a narrow emission spectrum, a high stability, and a high efficiency. An electronic device comprising the organic electroluminescent element of the present invention can enable a consumer product having green electroluminescence and an improved luminous efficiency.

IPC Classes  ?

• C07F 15/00 - Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
• H10K 85/30 - Coordination compounds

Abstract

The present invention relates to an organic compound, an organic electroluminescent material, and an organic electroluminescent element. The structural formula of the compound is shown in formula (I). When the organic compound of the present invention is used for preparing an organic electroluminescent element, the electron mobility, thermal stability, and luminescent characteristics are excellent; and the organic compound can be applied to an organic layer of the organic electroluminescent element. The organic compound of the present invention has a relatively good film-forming property; and when same is applied to an electron transport layer and an electron transport auxiliary layer, an organic electroluminescent element, which has a lower driving voltage, a higher light emission efficiency, and a longer service life than existing electron transport materials, can be manufactured, and thus, a full-color display panel with having improved performance and a prolonged service life can be manufactured.

IPC Classes  ?

• C07D 487/04 - Ortho-condensed systems
• H10K 50/11 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
• H10K 85/60 - Organic compounds having low molecular weight
• C07D 519/00 - Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups or
• C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials

Abstract

The present invention relates to an organic compound, an organic electroluminescent material and an organic electroluminescent element. The structural formula of the compound is shown in formula (I). When the organic compound of the present invention is used for preparing an organic electroluminescent element, the electron mobility, thermal stability and luminescent characteristics are excellent; and the organic compound can be applied to an organic layer of the organic electroluminescent element. The organic compound of the present invention has a relatively good film-forming property; and when same is applied to an electron transport layer and an electron transport auxiliary layer, an organic electroluminescent element, which has a lower driving voltage, a higher light emission efficiency and a longer service life than existing electron transport materials, can be manufactured, and thus, a full-color display panel having improved performance and a prolonged service life can be manufactured.

IPC Classes  ?

• C07D 487/04 - Ortho-condensed systems
• C07D 519/00 - Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups or
• C07F 7/10 - Compounds having one or more C—Si linkages containing nitrogen
• C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
• H01L 51/54 - Selection of materials
• H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)

Abstract

The present invention relates to a carbazole derivative and an application thereof. The structural formula of the carbazole derivative is as shown in formula (I). The carbazole derivative of the present invention has a higher triplet state energy level, and is suitable for being used as a material for an organic electroluminescent element. The material for an organic electroluminescent element comprising the carbazole derivative of the present invention has a low starting voltage, high luminous efficiency, and high brightness. Moreover, the carbazole derivative of the present invention has good thermal stability and film-forming property, and can prolong the service life when being applied to a material for an organic electroluminescent element, an organic electroluminescent element, a display device, and a lighting device, and thus the manufacturing cost of the material for an organic electroluminescent element, the organic electroluminescent element, the display device, and the lighting device can be reduced.

IPC Classes  ?

• C07D 491/06 - Peri-condensed systems
• C07D 495/06 - Peri-condensed systems
• C07D 491/16 - Peri-condensed systems
• C07D 495/16 - Peri-condensed systems
• C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
• H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
• H01L 51/54 - Selection of materials

Abstract

The present invention relates to a benzophenanthrene derivative and an application thereof. The structural formula of the benzophenanthrene derivative is represented by formula (I). The benzophenanthrene derivative set forth in the present invention is a novel organic electroluminescent compound having a fused ring structure of indole, benzofuran and benzothiophenobenzophenanthrene, and the intramolecular electron density is increased on the basis of benzophenanthrene. Meanwhile, substituent groups are adjusted to increase molecular steric hindrance and weaken the π-π interaction between molecules, the internal quantum efficiency of molecules is improved, and the light-emitting wavelength is shorter than that of existing compounds. Meanwhile, the benzophenanthrene derivative hinders the generation of an organic intermolecular excitation-excitation compound and increases internal electron density and stability; therefore, by using the the benzophenanthrene derivative of the present invention to prepare an organic electroluminescent device significantly improves the effect and service life thereof.

IPC Classes  ?

• C07D 493/04 - Ortho-condensed systems
• C07D 495/04 - Ortho-condensed systems
• C07D 487/04 - Ortho-condensed systems
• C07C 211/61 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton with at least one of the condensed ring systems formed by three or more rings
• C07D 493/16 - Peri-condensed systems
• C07D 495/16 - Peri-condensed systems
• C07D 491/16 - Peri-condensed systems
• C07D 311/94 - Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems condensed with rings other than six-membered or with ring systems containing such rings
• C07D 251/24 - Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to three ring carbon atoms
• C07D 493/06 - Peri-condensed systems
• C07D 495/06 - Peri-condensed systems
• C07D 487/06 - Peri-condensed systems
• C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
• H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
• H01L 51/54 - Selection of materials

Abstract

Disclosed are a liquid crystal composition adaptable to relatively wide operating temperatures and a preparation method therefor. The preparation method involves using a compound of general formula I, a compound of general formula II, a compound of general formula III, a compound of general formula IV, a compound of general formula V, a compound of general formula VI, a compound of general formula VII and a compound of general formula VIII as raw materials and compounding same in an appropriate ratio to finally prepare the liquid crystal composition. The liquid composition further contains polycyclic, alkynyl, cyano and ester compounds, has the properties of a high clearing point and a large optical anisotropy, and has a relatively wide operating temperature range and can adapt to high-temperature environment conditions. The liquid crystal composition can be applied to various display devices, especially PDLC devices.

IPC Classes  ?

• C09K 19/46 - Mixtures of liquid crystal compounds covered by two or more of the preceding groups containing esters

Abstract

The present invention relates to a nematic liquid crystal composition and a preparation method therefor. The liquid crystal composition is a liquid crystal composition which is prepared by using a compound of general formula I, a compound of general formula II, a compound of general formula III, a compound of general formula IV, a compound of general formula V, a compound of general formula VI, and a compound of general formula VII as raw materials and appropriately proportioning same. The liquid crystal composition contains polycyclic, cyano and ester compounds, has a sufficiently wide temperature range and a fast response speed, also has characteristics of a high clearing point and a large optical anisotropy, and can be adapted to low-temperature environmental conditions. The nematic liquid crystal composition of the present invention can be applied to various display devices, especially PDLC devices.

IPC Classes  ?

• C09K 19/46 - Mixtures of liquid crystal compounds covered by two or more of the preceding groups containing esters
• G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells

Abstract

The present invention relates to a low-viscosity, fast-response liquid crystal composition and a preparation method therefor. The liquid crystal composition uses a compound represented by general formula I, a compound represented by general formula II, a compound represented by general formula III, a compound represented by general formula IV, a compound represented by general formula V, a compound represented by general formula VI and a compound represented by general formula VII as raw materials and appropriate proportioning is carried out. The synergistic effect between said components enables the liquid crystal composition of the present invention to have a sufficiently wide temperature range and fast response speed, to further have the characteristics of high-definition bright spots, large optical anisotropy, low viscosity, and excellent mutual solubility, and to be capable of adapting to low-temperature environmental conditions. Therefore, the liquid crystal composition provided by the present invention is suitable for various display devices and PDLC apparatus display, being especially suitable for PDLC apparatus display, and has outstanding performance.

IPC Classes  ?

• C09K 19/46 - Mixtures of liquid crystal compounds covered by two or more of the preceding groups containing esters
• G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells