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Organic compound, display panel and display device

An organic compound and display panel technology, applied in the field of display panels and display devices, organic compounds, can solve problems such as the inability to solve luminous efficiency and chromaticity at the same time, the inability to achieve close packing between molecules, and the inability to meet the requirements of high refractive index, etc. , to save the preparation cost, the preparation method is simple, and the effect of alleviating the angle dependence

Active Publication Date: 2020-05-08
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technology of CPL materials has the following problems: 1. The refractive index is generally below 1.9, which cannot meet the requirements of high refractive index; 2. When the refractive index meets the requirements, there is strong absorption in the visible light region or a large extinction coefficient; 3. Existing materials cannot solve the problems of luminous efficiency and chromaticity at the same time, especially blue light-emitting components
4. The molecules cannot be tightly packed, and the molecular gel has too many holes during evaporation, and the covering tightness is not good

Method used

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  • Organic compound, display panel and display device
  • Organic compound, display panel and display device
  • Organic compound, display panel and display device

Examples

Experimental program
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Effect test

Embodiment 1

[0079]

[0080]

[0081] (1) In a 250ml round bottom flask, compound 1-1 (15mmol), diethyl malonate (35mmol) and sodium ethoxide (15mmol) were added to dry ethanol (100ml), under nitrogen atmosphere, temperature React at 78°C for 12 hours, add the obtained intermediate mixed solution into water, then filter through a pad of diatomaceous earth, extract the filtrate with dichloromethane, then wash with water, and dry with anhydrous magnesium sulfate, filter and evaporate , the crude product was purified by silica gel column chromatography to obtain the intermediate compound 1-2.

[0082] (2) In a 250ml round bottom flask, add compound 1-2 (15mmol), diethylphenylamine (15mol) to dry POCl 3 (100ml), under nitrogen atmosphere, the temperature is 6.0 hours under the condition of 120 ℃, and the obtained intermediate mixed solution is added in water, then filtered through a diatomaceous earth pad, and the filtrate is extracted with dichloromethane, then washed with water, and A...

Embodiment 2

[0087]

[0088] (1) In a 250ml round bottom flask, compound 13-1 (15mmol), diethyl malonate (35mmol) and sodium ethoxide (15mmol) were added to dry ethanol (100ml), under nitrogen atmosphere, temperature React at 78°C for 12 hours, add the obtained intermediate mixed solution into water, then filter through a pad of diatomaceous earth, extract the filtrate with dichloromethane, then wash with water, and dry with anhydrous magnesium sulfate, filter and evaporate , the crude product was purified by silica gel column chromatography to obtain the intermediate compound 13-2.

[0089] (2) In a 250ml round bottom flask, add compound 13-2 (15mmol), diethylphenylamine (15mol) to dry POCl 3(100ml), under nitrogen atmosphere, the temperature is 6.0 hours under the condition of 120 ℃, and the obtained intermediate mixed solution is added in water, then filtered through a diatomaceous earth pad, and the filtrate is extracted with dichloromethane, then washed with water, and After dryin...

Embodiment 3

[0095]

[0096] (1) In a 250ml round bottom flask, compound 14-5 (20mmol), compound 14-4 (10mmol) and Pd(PPh 3 ) 4 (0.3mmol) was added to a mixture of toluene (30ml) / ethanol (20ml) and potassium carbonate (12mmol) aqueous solution (10ml), and the reaction was refluxed under nitrogen atmosphere for 12h. The resulting mixture was cooled to room temperature, added to water, and filtered through a pad of celite. The filtrate was extracted with dichloromethane, washed with water, and dried over anhydrous magnesium sulfate. After filtration and evaporation, the crude The product yielded the final product compound P14.

[0097] 1 H NMR (400MHz, CDCl 3 )δ8.50-8.31 (m, 2H), 8.20 (s, 2H), 7.91-7.39 (m, 18H), 7.54 (d, J = 8.4Hz, 4H), 7.28 (s, 1H), 7.23-7.00 (m,3H);

[0098] Characterization results: elemental analysis results of compound P14 (molecular formula C 48 h 30 N 2 ): theoretical value: C, 90.85; H, 4.73; N, 4.42. Test values: C, 90.85; H, 4.73; N, 4.42. ESI-MS (m / z...

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Abstract

The invention discloses an organic compound. The structure of the organic compound is shown in the specification, and all substituent groups in the structure are defined in details in the description.

Description

technical field [0001] The present application relates to the technical field of organic electroluminescence materials, in particular to an organic compound, a display panel and a display device. Background technique [0002] 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 waveguide effect, resulting in a large amount of energy loss. [0003] In the existing OLED display panel, by evaporating a layer of organic capping layer (Capping Layer, CPL) on the translucent metal electrode Al, the optical interference distance is adjusted, the reflection of external light is suppressed, and the extinction caused by the movement of surface plasmon energy is suppressed, thereby Improve light extraction efficiency and enhance luminous effi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D239/26C07D213/16C07D401/04C07D405/04C07D409/04C07D405/14C09K11/06H01L51/50H01L51/54
CPCC07D239/26C07D213/16C07D401/04C07D405/04C07D409/04C07D405/14C09K11/06C09K2211/1011C09K2211/1029C09K2211/1044C09K2211/1088C09K2211/1092H10K85/624H10K85/622H10K85/615H10K85/654H10K85/6576H10K85/6574H10K85/6572H10K50/00
Inventor 代文朋高威牛晶华张磊
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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