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A kind of oled organic electroluminescent compound and host material of light-emitting layer

A compound, electroluminescence technology, applied in the fields of luminescent materials, organic chemistry, electric solid devices, etc., can solve the problems of disparity and so on

Active Publication Date: 2021-09-28
欧洛德(武汉)光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, for the collocation of OLED devices with different structures, the photoelectric functional materials used have strong selectivity, and the performance of the same material in devices with different structures may be completely different.

Method used

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  • A kind of oled organic electroluminescent compound and host material of light-emitting layer
  • A kind of oled organic electroluminescent compound and host material of light-emitting layer
  • A kind of oled organic electroluminescent compound and host material of light-emitting layer

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Embodiment Construction

[0036] Hereinafter, the organic electroluminescent compound of the present invention, its preparation method, and the preparation method and light-emitting properties of a light-emitting device comprising the compound are described in detail with reference to the following examples.

[0037]Various chemicals used in the present invention such as petroleum ether, ethyl acetate, tetrahydrofuran, n-hexane, toluene, acetic acid, methylene chloride, DMF, tetrakistriphenylphosphine palladium, 11,12-indolo 2,3- a] carbazole, dimethyl 5-dibromophthalate, biphenyl-3-boronic acid, (diphenyl-1,3,5-triazine)-boronic acid, phenylpyridine-3-boronic acid, 1,2-cyclohexanedione, phenylhydrazine hydrochloride, 4-bromophenylhydrazine hydrochloride, isoamyl nitrite, zinc powder, sodium sulfate, etc. can be bought in the domestic chemical product market, 2,2'- Dibromo-6,6'-diiodo-1',1'biphenyl was prepared according to the literature method (Org.Lett.,2015,17,4296)

[0038] Synthetic preparation ...

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Abstract

An OLED organic electroluminescent compound and a host material for a light-emitting layer, the compound has the following general formula (I): wherein, L 1 ~ L 5 The same or different, independently selected from single bond, substituted or unsubstituted C 6 ~C 30 Arylene, or substituted or unsubstituted C 2 ~C 30 Heteroarylene; R 1 ~R 2 The same or different, independently selected from hydrogen, halogen, substituted or unsubstituted C 1 ~C 10 Alkyl, substituted or unsubstituted C 6 ~C 30 Aryl, or substituted or unsubstituted C 2 ~C 30 Heteroaryl; R 3 ~R 5 The same or different, independently selected from hydrogen, halogen, substituted or unsubstituted C 1 ~C 10 Alkyl, substituted or unsubstituted C 6 ~C 30 Aryl, or substituted or unsubstituted C 2 ~C 30 heteroaryl. The material is a high-performance OLED functional material or material combination, which realizes the comprehensive characteristics of high efficiency, long life and low voltage of the device.

Description

technical field [0001] The invention relates to a novel organic compound and material, and its application in the technical field of organic electroluminescence display. Background technique [0002] In recent years, with the continuous advancement of OLED technology in the two major fields of lighting and display, and the gradual expansion of market share, the competitiveness of organic electroluminescent technology has been enhanced, especially the efficiency, life and lifetime of organic electroluminescent devices have been improved. Material development and device structure research for reducing driving voltage and other properties have more important significance. [0003] New materials with excellent performance can improve efficiency and life while further reducing the cost of the screen body. Finding materials with better performance is also a key factor in the development of organic electroluminescence technology. An organic electroluminescent device with high effi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D495/22C09K11/06H01L51/50H01L51/54
CPCC07D495/22C09K11/06C09K2211/1011C09K2211/1029C09K2211/1044C09K2211/1051C09K2211/1059H10K85/622H10K85/626H10K85/615H10K85/654H10K85/6572H10K85/657H10K50/15H10K50/18
Inventor 黄雨鹏
Owner 欧洛德(武汉)光电科技有限公司
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