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Compound, display panel and display device

A technology for display panels and compounds, applied in the fields of compounds, display panels and display devices, can solve the problem of difficulty in developing doping materials, etc., to improve charge injection, improve luminous efficiency, sharpen emission spectrum, improve luminous brightness and external The effect of quantum efficiency

Active Publication Date: 2019-12-27
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current research status, the commercialization of heavy metal doping materials is mature, and it is difficult to develop alternative doping materials

Method used

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  • Compound, display panel and display device
  • Compound, display panel and display device
  • Compound, display panel and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Synthesis of Compound H001

[0053]

[0054] In a 250ml round bottom flask, diphenylamine (15mmol), potassium carbonate (40mmol) and BTMABr 3 (Benzyltrimethylammonium tribromide, 35mmol) was mixed with dry dichloromethane (60ml) and acetonitrile (60mmol), and stirred at room temperature for 48 hours under a nitrogen atmosphere. The resulting intermediate was added to water, then 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 product was purified by silica gel column chromatography to obtain the intermediate product Bis(2-bromophenyl)amine.

[0055] In a 250ml round bottom flask, bis(2-bromophenyl)amine (15mmol), potassium hydroxide (30mmol) and benzyl bromide (15mmol) and dry THF (100ml) were stirred under reflux for 24 Hour. The resulting intermediate was cooled to room temperature, added to water, and filtered through a p...

Embodiment 2

[0062] Synthesis of compound H002

[0063]

[0064] In a 250ml round bottom flask, H001-3 (15mmol), cuprous iodide (30mmol), t-BuOK (20mmol) and 3,4-dicyanobromobenzene (30mmol) were mixed with dry 1,4-di Hexane (100ml) was mixed and stirred at room temperature for 48 hours under nitrogen atmosphere. The resulting intermediate was added to water, then 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 product was purified by silica gel column chromatography to obtain the intermediate product H002.

[0065] Elemental analysis results of compound H002: theoretical value: C, 78.18; H, 3.58; N, 13.68; Si, 4.56; test value: C, 78.18; H, 3.58; N, 13.68;

[0066] MALDI-TOF MS: m / z C 40 h 22 N 6 Calculated for Si: 614.17; Measured: 614.16.

Embodiment 3

[0068] Synthesis of Compound H009

[0069]

[0070] In a 250ml round bottom flask, bis(4-pyridyl)amine (15mmol), potassium carbonate (40mmol) and BTMABr 3 (Benzyltrimethylammonium tribromide, 35mmol) was mixed with dry dichloromethane (60ml) and acetonitrile (60mmol), and stirred at room temperature for 48 hours under a nitrogen atmosphere. The resulting intermediate was added to water, then 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 product was purified by silica gel column chromatography to obtain the intermediate product bis(2-bromo-4-pyridyl)amine.

[0071] In a 250 ml round bottom flask, bis(2-bromo-4-pyridyl)amine (15 mmol), potassium hydroxide (30 mmol) and benzyl bromide (15 mmol) were mixed with dry THF (100 ml) under nitrogen atmosphere, Stir at reflux for 24 hours. The resulting intermediate was cooled to room tempe...

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Abstract

The present invention provides a compound used as a main material, and a display panel and a display device comprising the same, the compound having an azaspiro silicon ring structure represented by chemical formula 1, wherein A1 and A2 are electron acceptors, the m and n are respectively selected from 1, 2, 3; the A1 and A2 are each independently selected from a nitrogen-containing heterocyclic substituent or a cyano-containing substituent; the L1 and L2 are each independently selected from at least one of a single bond, an arylene group, a heteroarylene group, a sub-condensed aryl group or asub-condensed heteroaryl group; p and q are respectively selected from 0, 1 or 2; the X1-X16 are selected from a C atom or an N atom, and at most two of X1-X4, X5-X8, X9-X12 and X13-X16 are respectively N atoms. In the compound, the electron-deficient silicon atoms are doped, so that the affinity of compound molecules can be enhanced, and transmission of holes and electrons is facilitated. Therefore, introduction of silicon atoms improves charge injection and charge recombination, and when the compound of the present invention is used as a host material of a light emitting device; therefore,the light emitting brightness and external quantum efficiency of the light emitting device can be improved.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescent materials, in particular to a compound, a display panel and a display device including the compound. Background technique [0002] As a new generation of display technology, organic electroluminescent materials (OLED) have the advantages of ultra-thin, self-luminous, wide viewing angle, fast response, high luminous efficiency, good temperature adaptability, simple production process, low driving voltage, and low energy consumption. It has been widely used in industries such as flat panel display, flexible display, solid state lighting and vehicle display. [0003] According to the light-emitting mechanism, the light emitted by OLED can be divided into two types: electroluminescence and electrophosphorescence. Fluorescence is the light emitted by the radiative decay transition of singlet excitons, and phosphorescence is the light emitted by the radiative decay of triplet exciton...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/10C09K11/06H01L51/50H01L51/54
CPCC07F7/0816C09K11/06C09K2211/1007C09K2211/104C09K2211/1044C09K2211/1059C09K2211/1029H10K85/40H10K50/11
Inventor 代文朋牛晶华高威张磊肖文静
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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