Organic compound, light-emitting device, display substrate and display device

A technology for organic compounds and light-emitting devices, applied in organic chemistry, chemical instruments and methods, light-emitting materials, etc., can solve problems such as low luminous efficiency, and achieve the goal of improving molecular orientation, extending molecular axial length, and stabilizing electrochemical stability. Effect

Pending Publication Date: 2022-07-01
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current OLED display devices have the problem of low luminous efficiency

Method used

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  • Organic compound, light-emitting device, display substrate and display device
  • Organic compound, light-emitting device, display substrate and display device
  • Organic compound, light-emitting device, display substrate and display device

Examples

Experimental program
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preparation example Construction

[0092] Some embodiments of the present disclosure provide a method for preparing the above-mentioned organic compound, comprising the following steps:

[0093] A. Under the protective condition of inert gas, compound I, compound II, base and catalyst A are added to the organic solvent, and the reaction obtains compound III, and its reaction equation is:

[0094]

[0095] It should be noted that Compound I and Compound II are synthetic raw materials, and Compound III is an intermediate for synthesizing the organic compounds of the present disclosure. Wherein, compound I is a fused ring structure of bromobenzene-A-B, the specific structure of compound I can be adjusted according to the specific synthetic target, and the A ring in compound I contains a five-membered ring or six-membered ring with a reaction site of an electron-rich nitrogen atom structure. Ring; Ring B is a five-membered ring or a six-membered ring adjacent to Ring A and fused to Ring A, and Ring B may be pres...

Embodiment 1

[0104] Preparation of M1 Organic Compounds

[0105] Under nitrogen protection, 1-bromo-carbazole (2.2 g, 9 mmol), phenylene bipinacol ester (1.6 g, 0.5 mmol), Pd(dppf)Cl 2 (0.03g, 0.05mmol), sodium tert-butoxide (1.44g, 15mmol) and 200mL of tetrahydrofuran solvent were placed in a 500mL three-necked flask, the reaction temperature was controlled at 95±3°C, refluxed for 24h, and purified and separated to obtain indolo[1, 2,3-lm]indolo[3',2',1':7,1]indolo[2,3-h]carbazole intermediate. The resulting intermediate indolo[1,2,3-lm]indolo[3',2',1':7,1]indolo[2,3-h]carbazole (0.4 g, 1mmol), liquid bromine (0.19g, 1.2mmol), Pd(dppf)Cl 2 (0.03g, 0.05mmol) and 200mL tetrahydrofuran solvent in a 500mL there-necked flask, the reaction temperature was controlled at 95±3°C, and the reaction was refluxed for 24h; then sodium tert-butoxide (1.44g, 15mmol), phenylboronic acid (0.12g, 1mmol) were added. ), carbazole (0.17g, 1mmol), continue the reaction, the reaction temperature is controlled...

Embodiment 2

[0108] Preparation of M2 Organic Compounds

[0109] Under nitrogen protection, 1-bromo-6-tert-butyl-carbazole (2.7 g, 9 mmol), phenylene bipinacol ester (1.6 g, 0.5 mmol), Pd(dppf)Cl2 (0.03g, 0.05mmol), sodium tert-butoxide (1.44g, 15mmol) and 200mL of tetrahydrofuran solvent were placed in a 500mL three-necked flask, the reaction temperature was controlled at 95±3°C, the reaction was refluxed for 24h, and 5,14-di-tert. Butylindolo[1,2,3-lm]indolo[3',2',1':7,1]indolo[2,3-h]carbazole intermediate. The resulting intermediate 5,14-bis(2-methylpropan-2-yl)indolo[1,2,3-lm]indolo[3',2',1':7,1] Indolo[2,3-h]carbazole (0.5 g, 1 mmol), liquid bromine (0.19 g, 1.2 mmol), Pd(dppf)Cl 2 (0.03g, 0.05mmol) and 200mL of tetrahydrofuran solvent in a 500mL three-necked flask, the reaction temperature was controlled at 95±3°C, and the reaction was refluxed for 24h; then sodium tert-butoxide (1.44g, 15mmol), methylboronic acid (0.06g, 1mmol), carbazole (0.17g, 1mmol), continue the reaction, the...

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Abstract

The invention discloses an organic compound, a light-emitting device, a display substrate and a display device, relates to the technical field of display, and is used for improving the light-emitting efficiency of the display device. The structural formula of the organic compound is shown as a formula (1), a formula (2), a formula (3) or a formula (4). The organic compound provided by the invention is used for a light-emitting layer, and the light-emitting layer is used for a display device.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, to an organic compound, a light-emitting device, a display substrate and a display device. Background technique [0002] Organic Light-Emitting Diode (OLED) is also known as organic electric laser display and organic light-emitting semiconductor. OLED display technology has the advantages of self-luminescence, wide viewing angle, almost infinitely high contrast ratio, low power consumption, and extremely high response speed, which makes OLED display devices widely used. However, the current OLED display device has the problem of low luminous efficiency. SUMMARY OF THE INVENTION [0003] Embodiments of the present invention provide an organic compound, a light-emitting device, a display substrate, and a display device, and the organic compound can be used to improve the light-emitting efficiency of the display device. [0004] To achieve the above object, the embodi...

Claims

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Application Information

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IPC IPC(8): C07D471/22C07D487/22C07D519/00C09K11/06H01L27/32H01L51/54H01L51/50
CPCC07D471/22C07D487/22C07D519/00C09K11/06C09K2211/1029C09K2211/1044C09K2211/1059C09K2211/1033H10K59/12H10K85/654H10K85/657H10K85/40H10K85/6572H10K50/11
Inventor 李璇
Owner BOE TECH GRP CO LTD
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