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Compound, display panel and display device

A compound and connection position technology, applied in organic chemistry, chemical instruments and methods, luminescent materials, etc., can solve the problems affecting OLED luminous efficiency, lower exciton formation efficiency, low electron transport ability, etc., to achieve inhibition of electron transport performance and Reduced exciton formation efficiency, enhanced electron injection and transport capabilities, and effects of high exciton utilization

Pending Publication Date: 2020-09-29
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used HTM has a higher hole-transporting ability, while the electron-transporting ability of ETM is much lower, resulting in more holes than electrons migrating to the light-emitting layer, making the electrons and holes of the entire device The mobility is unbalanced, and the exciton formation efficiency is greatly reduced, which affects the luminous efficiency of OLEDs

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

[0176] Example 1: Preparation of compound J53

[0177] (One)

[0178] Under a nitrogen atmosphere, o-phenylenediamine (8.8mmol) and 4,4'-dibromobiphenyl (8mmol) were added to 80mL of acetic acid, stirred and heated, and reacted at 100°C for 24h. After the reaction is over, cool to room temperature, pour it into ice water with stirring, perform suction filtration, collect the filter cake, dissolve it in dichloromethane, and add water for extraction, collect the organic phase and use anhydrous Na 2 SO 4 Dry, collect the filtrate by suction filtration, spin off the solvent and perform column chromatography purification to obtain the intermediate Me-1 (yield 85%).

[0179] LC-MS: m / z: calculated value: C20H12Br2N2: 440.13, measured value: 439.89.

[0180] (two)

[0181] Under nitrogen atmosphere, add 100 mL of toluene: ethanol: water (10:1:1) mixed solvent into a 250 mL reaction flask, and then add K in sequence 2 CO 3 (2.5mmol), intermediate Me-1 (1mmol), dibenzofuran-4-boronic acid (1m...

Embodiment 2

[0190] Example 2: Preparation of compound J34

[0191] (One)

[0192] The preparation method of intermediate Me-4 and Me-3 is similar, the difference is that the Re-1 in step (3) of Example 1 is replaced with an equimolar amount of Re-2, and finally intermediate Me-4 is obtained (yield 65%).

[0193] LC-MS: m / z: calculated value: C29H20BN3O2: 453.30, measured value: 453.09.

[0194] (two)

[0195] The preparation method of compound J34 is similar to that of J53, except that Me-3 in step (4) of Example 1 is replaced with an equimolar amount of Me-4, and finally compound J34 is obtained (yield 80%).

[0196] LC-MS: m / z: calculated value: C61H37N5O: 855.98, measured value: 855.67.

[0197] Elemental analysis results of the compound: calculated value: C61H37N5O (%): C 85.59, H 4.36, N 8.18; test value: C 85.60, H 4.35, N 8.20.

Embodiment 3

[0198] Example 3: Preparation of Compound J12

[0199] (One)

[0200] The preparation method of intermediate Me-5 and Me-3 is similar, the difference is that the Re-1 in step (3) of Example 1 is replaced with an equimolar amount of Re-3, and finally intermediate Me-5 is obtained (yield 62%).

[0201] LC-MS: m / z: calculated value: C29H20BN3O2: 453.30, measured value: 453.12.

[0202] (two)

[0203] The preparation method of compound J33 is similar to that of J53, except that Me-3 in step (4) of Example 1 is replaced with an equimolar amount of Me-5 to finally obtain compound J12 (yield 77%).

[0204] LC-MS: m / z: calculated value: C61H37N5O: 855.98, measured value: 855.63.

[0205] Elemental analysis results of the compound: calculated value: C61H37N5O (%): C 85.59, H 4.36, N 8.18; test value: C 85.58, H 4.35, N 8.21.

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Abstract

The invention discloses a compound, a display panel and a display device. The compound has a structure represented by a formula 1. In the formula 1, Aa, Ab, Ac, y, R and Y are as defined in the specification. The compound provided by the invention can be used for the display panel and the display device.

Description

Technical field [0001] The invention belongs to the field of organic light emitting technology, and specifically relates to a compound, a display panel and a display device. Background technique [0002] An organic light emitting diode (OLED) is a self-luminous device that uses an organic thin film layer to generate electrical excitation light. Specifically, OLEDs are driven by an external electric field to inject holes and electrons from the anode and cathode respectively; the holes and electrons migrate to the light-emitting layer and combine in the organic light-emitting material to generate excitons; the excited excitons can be The form of light releases energy back to a stable ground state, producing visible light. Choosing different luminescent materials can produce different colors of emitted light to meet different color requirements. [0003] Generally, a hole transport layer (HTL) containing a hole transport material (HTM) and an electron transport layer (ETL) containin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D409/14C07D471/04C07D413/14C07D409/10C07D405/14C07D405/10C07D475/00C07D487/04C09K11/06H01L51/50H01L51/54
CPCC07D409/14C07D471/04C07D413/14C07D409/10C07D405/14C07D405/10C07D475/00C07D487/04C09K11/06C09K2211/1011C09K2211/1029C09K2211/1033C09K2211/1044C09K2211/1059C09K2211/1074C09K2211/1088C09K2211/1092H10K85/615H10K85/654H10K85/6576H10K85/6574H10K85/657H10K85/6572H10K50/16H10K50/18H10K50/11
Inventor 冉佺高威牛晶华张磊代文朋李侠
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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