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Novel organic material and application of novel organic material to display devices

An organic material and a new type of technology, applied in the field of organic electroluminescence display, can solve the problems of affecting the service life of materials, damage to the uniformity of the film, low glass transition temperature, etc. The effect of mobility

Inactive Publication Date: 2018-09-14
北京燕化集联光电技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The organic hole transport materials currently reported are generally small in molecular weight and have a low glass transition temperature. During the use of the material, repeated charging and discharging will easily crystallize the material and destroy the uniformity of the film, thus affecting the service life of the material.

Method used

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  • Novel organic material and application of novel organic material to display devices
  • Novel organic material and application of novel organic material to display devices
  • Novel organic material and application of novel organic material to display devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Synthesis of (Compound 1)

[0065] The synthetic route is as follows:

[0066]

[0067] Compound 1

[0068] 1) Synthesis of compound 1-2

[0069]1000 milliliter three-necked flask, equipped with magnetic stirring, after argon replacement, add sodium tert-butoxide 46.1g (0.48mol), aniline 27.9g (purity 99%, 0.3mol), 45g1-bromo-2-fluoronaphthalene (purity 99%) , 0.2mol) and toluene 400ml. After argon replacement again, 3 ml of tri-tert-butylphosphine and 0.46 g of tris(diphenylbenzylacetone)dipalladium were added in sequence. After the addition, start stirring and heat up to 100°C, and control the temperature at 100-110°C for 5 hours. After cooling down to 30°C, the filtrate was obtained by suction filtration through a silica gel column, and the filtrate was rotary evaporated, dissolved in dichloromethane, washed twice with 4mol / L hydrochloric acid solution, separated, dried with anhydrous sodium sulfate, suction filtered, and rotary evaporated The filtrate obta...

Embodiment 2

[0074] Synthesis of (Compound 2)

[0075] The synthetic route is as follows:

[0076]

[0077] Compound 2

[0078] 1) Synthesis of compound 2-1

[0079] 1000 milliliter three-necked flask, equipped with magnetic stirring, after argon replacement, add sodium tert-butoxide 46.1g (0.48mol), aniline 27.9g (purity 99%, 0.3mol), 45g1-bromo-2-fluoronaphthalene (purity 99%) , 0.2mol) and toluene 400ml. After argon replacement again, 3 ml of tri-tert-butylphosphine and 0.46 g of tris(diphenylbenzylacetone)dipalladium were added in sequence. After the addition, start stirring and heat up to 100°C, and control the temperature at 100-110°C for 5 hours. After cooling down to 30°C, the filtrate was obtained by suction filtration through a silica gel column, and the filtrate was rotary evaporated, dissolved in dichloromethane, washed twice with 4mol / L hydrochloric acid solution, separated, dried with anhydrous sodium sulfate, suction filtered, and rotary evaporated The filtrate obt...

Embodiment 3

[0084] Synthesis of (Compound 3)

[0085] The synthetic route is as follows:

[0086]

[0087] Compound 3

[0088] 1) Synthesis of compound 3-1

[0089] 1000 milliliter three-necked flask, equipped with magnetic stirring, after argon replacement, add sodium tert-butoxide 46.1g (0.48mol), aniline 27.9g (purity 99%, 0.3mol), 45g1-bromo-2-fluoronaphthalene (purity 99%) , 0.2mol) and toluene 400ml. After argon replacement again, 3 ml of tri-tert-butylphosphine and 0.46 g of tris(diphenylbenzylacetone)dipalladium were added in sequence. After the addition, start stirring and heat up to 100°C, and control the temperature at 100-110°C for 5 hours. After cooling down to 30°C, the filtrate was obtained by suction filtration through a silica gel column, and the filtrate was rotary evaporated, dissolved in dichloromethane, washed twice with 4mol / L hydrochloric acid solution, separated, dried with anhydrous sodium sulfate, suction filtered, and rotary evaporated The filtrate obt...

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PUM

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Abstract

The invention relates to the field of organic electroluminescence [OLED (organic light emitting diode)] display, in particular to a novel organic material and application of the novel organic materialto display devices. A structural general formula of the novel organic material is shown. Fused ring compounds are used as centers of the novel organic material which is a novel OLED material, 1-naphthylamine with fluorine atoms is used as an end group, substituent groups (N-phenyl-1-naphthylamine) with hole transport performance are introduced in active locations of polycyclic aromatic compounds,and accordingly the novel OLED material with hole transport performance can be obtained. The novel organic material and the application have the advantages that the novel organic material is high inhole mobility, good in thin-film stability and appropriate in molecular energy level and can be applied to the field of organic electroluminescence; the novel organic material has a broad applicationprospect when used as a hole transport material.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescent display, and in particular relates to a novel organic material and its application in organic electroluminescent devices. Background technique [0002] The application of organic electroluminescent (OLED) materials in information display materials, organic optoelectronic materials and other fields has great research value and bright application prospects. With the development of multimedia information technology, the performance requirements of flat panel display devices are getting higher and higher. At present, the main display technologies include plasma display devices, field emission display devices and organic electroluminescent display devices (OLED). Among them, OLED has a series of advantages such as self-luminescence, low-voltage DC drive, full curing, wide viewing angle, and rich colors. Compared with liquid crystal display devices, OLED does not require a backlight,...

Claims

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Application Information

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IPC IPC(8): C07C211/61C07D471/04H01L51/50H01L51/54
CPCC07C211/61C07D471/04H10K85/615H10K85/622H10K85/623H10K85/626H10K85/6572H10K50/15
Inventor 曹占广班全志程丹丹杭德余李继响段陆萌纪秦思王敬丽马天凯
Owner 北京燕化集联光电技术有限公司
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