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Aromatic amine compound and organic light-emitting device (OLED) containing compound

A compound and aromatic amine technology, applied in the field of organic electroluminescent materials, can solve the problems of high refractive index and low luminous efficiency, and achieve the effects of improving luminous efficiency, high refractive index, and improved extraction efficiency

Active Publication Date: 2019-09-27
JILIN OPTICAL & ELECTRONICS MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the refractive index of existing CPL materials is generally below 1.9, which cannot meet the requirements of high refractive index, and the luminous efficiency is low

Method used

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Embodiment Construction

[0046] The present invention provides an aromatic amine compound, which has a structure shown in Chemical Formula 1:

[0047]

[0048] Among them, E1, E2, and E3 each independently represent a substituted or unsubstituted C3-C60 cycloalkyl, C3-C60 heterocyclyl, C6-C60 aryl, C3-C60 heteroaryl, or C10-C60 condensed Ring group; preferred E1, E2, and E3 each independently represent a C6-C30 aryl group or a C6-C30 heteroaryl group; preferably, when each of E1, E2, and E3 independently represents a heteroaryl group, it contains at least One heteroatom is O, S, N or Si; preferably at least one of E1, E2, E3 is a heteroaryl group containing N atoms; when E2 is a heteroaryl group, E1, E3 are not heteroaryl groups; or When E2 is not a heteroaryl group, at least one of E1 and E3 must be a heteroaryl group;

[0049] n is an integer from 0 to 4;

[0050] Ar 1 、Ar 2 、Ar 3 、Ar 4 Each independently represents a substituted or unsubstituted C1-C30 aliphatic hydrocarbon group, a substi...

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Abstract

The invention relates to an aromatic amine compound and an organic light-emitting device (OLED) containing the compound. The structural formula of the aromatic amine compound is as shown in the following description. The aromatic amine compound involved in the invention has relatively high refractive index, and can improve the light extraction efficiency of a top-emitting organic photoelectronic device when used as the capping layer of an organic light-emitting display device. The aromatic amine compound involved in the invention has relatively small extinction coefficient, and barely absorbs blue light, thereby facilitating the improvement of the luminous efficiency; meanwhile, the aromatic amine compound can effectively block water and oxygen in an external environment, and protects an OLED display panel from being eroded by the water and the oxygen, and the OLED can achieve high efficiency and long life. Compared with a known OLED, the OLED involved in the invention can greatly improve the light extraction efficiency because a material for an organic EL element with high refractive index, and excellent film stability and durabilityis used as a material for the covering layer. The organic light-emitting device involved in the invention can achieve high efficiency and long life.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescent materials, in particular to an aromatic amine compound and an organic light-emitting device containing the compound. Background technique [0002] Organic Light Emitting Display (OLED) is a new type of flat-panel display. Compared with Liquid Crystal Display (LCD), it has the advantages of thinness, lightness, wide viewing angle, active luminescence, and continuously adjustable luminous color. , low cost, fast response, low energy consumption, low driving voltage, wide operating temperature range, simple production process, high luminous efficiency and flexible display. [0003] After decades of development, OLED has come a long way. Although its internal quantum efficiency is close to 100%, its external quantum efficiency is only about 20%. Most of the light is confined inside the light-emitting device due to factors such as substrate mode loss, surface plasmon loss, and wave...

Claims

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Application Information

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IPC IPC(8): C07D277/66C07D401/14C07D403/14C07D405/14C07D409/14C07D413/14C07D417/14C09K11/06H01L51/54
CPCC07D413/14C07D417/14C07D401/14C07D405/14C07D403/14C07D277/66C09K11/06C09K2211/1033C09K2211/1029C09K2211/1011C09K2211/1007C09K2211/1044C09K2211/1014C09K2211/1059C09K2211/1037C09K2211/1088H10K85/615H10K85/631H10K85/636H10K85/626H10K85/633H10K85/654H10K85/657H10K85/6574H10K85/6572
Inventor 马晓宇金成寿金虎勇金成国王进政
Owner JILIN OPTICAL & ELECTRONICS MATERIALS
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