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Aromatic amine compound and organic electroluminescent display device comprising same

A compound and aromatic amine technology, applied in the field of organic electroluminescent materials, can solve the problems of reduced service life of OLED devices, increased driving voltage, low mobility, etc., and achieve the characteristics of low driving voltage, improved binding force, and high mobility. Effect

Pending Publication Date: 2021-08-24
上海钥熠电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The compound structure of aromatic polyamine or aromatic diamine has high mobility characteristics, and the compound of aromatic monoamine has high steric hindrance, but the lateral and vertical mobility is low, and the decrease of mobility will lead to the increase of driving voltage, which leads to the use of OLED devices. Reduced lifespan

Method used

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  • Aromatic amine compound and organic electroluminescent display device comprising same
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  • Aromatic amine compound and organic electroluminescent display device comprising same

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort fall within the protection scope of the present invention.

[0032] The aromatic amine compound adopted in the following examples has a structure as shown in formula (1):

[0033]

[0034] Ar 1 Has the structure shown in formula (1-1):

[0035]

[0036] Wherein, X1 and X2 are independently selected from O or S;

[0037] R(m) means that there are m independent R substituents, and R is independently selec...

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Abstract

The invention discloses an aromatic amine compound and an organic electroluminescent display device comprising the same, and belongs to the technical field of organic electroluminescent materials. The aromatic amine compound has a structure represented by the formula, wherein Ar1 has a structure represented by the formula, R1, R2, R3, Ra and Rb are independently selected from hydrogen, deuterium, substituted or unsubstituted alkyl or alkoxy with the number of carbon atoms being 1-20, substituted or unsubstituted aryl with the number of ring-forming carbon atoms being 5-60, substituted or unsubstituted heteroaryl with the number of ring-forming carbon atoms being 5-60, and substituted or unsubstituted fluoroalkyl or cyano with the number of carbon atoms being 1-20, and Ra and Rb can be connected with each other through a single bond. The aromatic amine compound is good in stability and has the characteristics of large steric hindrance and high mobility, the aromatic amine compound with the aromatic monoamine structure combined with the carbazole group is adopted as a hole transport layer material, and the obtained organic electroluminescent display device is low in driving voltage and long in service life.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescent materials, and in particular relates to aromatic amine compounds and organic electroluminescent display devices containing the same. Background technique [0002] At present, organic electroluminescent display devices (OLED) are mainly composed of anode, hole transport layer, light emitting layer, electron transport layer and cathode, and the material of hole transport layer is mainly composed of aromatic polyamine, aromatic diamine or aromatic monoamine. . The compound structure of aromatic polyamine or aromatic diamine has high mobility characteristics, and the compound of aromatic monoamine has high steric hindrance, but the lateral and vertical mobility is low, and the decrease of mobility will lead to the increase of driving voltage, which will lead to the use of OLED devices. Reduced lifespan. Contents of the invention [0003] The first object of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D405/14C07D409/14H01L51/50H01L51/54
CPCC07D405/14C07D409/14H10K85/6574H10K85/6576H10K85/6572H10K50/15
Inventor 王湘成何为
Owner 上海钥熠电子科技有限公司
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