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Organic light emitting compound and application thereof and organic electroluminescent device

A light-emitting compound and compound technology, applied in the field of organic light-emitting compounds and organic electroluminescent devices, can solve the problems of low light-emitting efficiency, short service life, and insufficient light-emitting color, and achieve the effect of high fluorescence quantum yield

Inactive Publication Date: 2019-08-23
BEIJING GREEN GUARDEE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a new organic luminescent compound in order to overcome the defects of low luminous efficiency, short service life and insufficient dark blue luminous color of blue organic electroluminescent materials in the prior art. When used as a blue organic electroluminescent material, it can significantly improve the luminous efficiency, prolong the service life of the material and improve the blue luminous ability

Method used

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  • Organic light emitting compound and application thereof and organic electroluminescent device
  • Organic light emitting compound and application thereof and organic electroluminescent device
  • Organic light emitting compound and application thereof and organic electroluminescent device

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specific Embodiment approach 1

[0026] Specific embodiment 1: In formula (I),

[0027] R 1 and R 2 from C 1-30 the alkyl group;

[0028] R 3 , R 4 , R 5 , R 6 , R 7 and R 8 each independently selected from H, C 1-20 Alkyl, C 1-20 Alkoxyl, C 1-20 Alkenyl, phenyl, biphenyl, naphthyl and

[0029] L 1 and L 2 Each independently is phenyl, biphenyl, or connect a single key;

[0030] Among them, X 1 For phenyl, biphenyl, naphthyl, from C 1-12 Alkyl substituted phenyl, phenyl substituted by 1 to 2 phenyl, C 1-12 Alkyl substituted naphthyl, by C 1-12 Alkyl substituted dibenzofuranyl.

specific Embodiment approach 2

[0031] Specific embodiment 2: In formula (I),

[0032] R 1 and R 2 Selected from isopropyl, tert-butyl;

[0033] R 3 , R 4 , R 5 , R 6 , R 7 and R 8 each independently selected from H, C 1-20 Alkyl, C 1-20 Alkoxyl, C 1-20 Alkenyl, phenyl, biphenyl, naphthyl and

[0034] L 1 and L 2Each independently is phenyl, biphenyl, or connect a single key;

[0035] Among them, X 1 For phenyl, biphenyl, naphthyl, from C 1-12 Alkyl substituted phenyl, phenyl substituted by 1 to 2 phenyl, C 1-12 Alkyl substituted naphthyl, by C 1-12 Alkyl substituted dibenzofuranyl.

specific Embodiment approach 3

[0036] Specific embodiment 3: The organic light-emitting compound is selected from at least one of the specific compounds listed in the preferred additional technical features in claim 4.

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Abstract

The invention relates to the field of organic electroluminescent devices, and discloses an organic luminescent compound and application thereof and an organic electroluminescent device. The compound has a structure shown in a formula (I). The organic luminescent compound can regulate and control the HOMO energy level and LUMO energy level of an organic electroluminescent material, and simultaneously the organic luminescent compound has higher fluorescence quantum yield, thereby improving the luminescent efficiency and prolonging the service life of the material.

Description

technical field [0001] The invention relates to the field of organic luminescence, in particular to an organic luminescence compound, an application of the organic luminescence compound in an organic electroluminescence device and an organic electroluminescence device. Background technique [0002] Compared with traditional liquid crystal technology, organic electroluminescence (OLED) technology does not require backlight illumination and color filters. Pixels can emit light by themselves and be displayed on a color display panel. Moreover, it has ultra-high contrast and ultra-wide viewing Angle, curved surface, thin and other characteristics. [0003] An OLED device includes a hole injection layer, a hole transport layer, an electron blocking layer, a light emitting layer, an electron transport layer, a hole blocking layer, and an electron injection layer. The materials used in each layer have a very important impact on the device performance of OLEDs. . The materials cur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/08C09K11/06H01L51/54
CPCC07F7/0827C07F7/083C09K11/06C09K2211/1011C09K2211/1007H10K85/40
Inventor 吕瑶冯美娟
Owner BEIJING GREEN GUARDEE TECH