Compound, display panel and display device

A display panel and compound technology, which is applied in the fields of compounds, display panels and display devices, can solve the problems of affecting OLED luminous quantum efficiency, reducing component efficiency and thermal stability, and reducing exciton formation efficiency, so as to achieve suppression of electron transport performance and Reduced exciton formation efficiency, enhanced electron injection and transport capabilities, and effects of high exciton utilization

Active 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 l

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

Example Embodiment

[0130] Example 1: Synthesis of compound H-25

[0131] (One)

[0132] Under a nitrogen atmosphere, add re-2 (5 mmol) to 100 mL of anhydrous THF, stir at -78°C for 10 min, wait for the reaction solution to cool, and add 1.6M n-BuLi (5 mmol) dropwise until the addition is complete. React at -78℃ for 2h; dissolve re-1 (5mmol) in 50mL anhydrous THF solution, then add it dropwise to the low-temperature reaction solution with a syringe. When the addition is over, continue the reaction at low temperature for 1h, then warm to room temperature for reaction 6h. After the reaction is over, add a small amount of water to quench, add water and dichloromethane for extraction, collect the organic phase and dry with anhydrous sodium sulfate, collect the filtrate by suction and spin off the solvent to obtain a crude product.

[0133] The above crude product was added to 80 mL of acetic acid under nitrogen conditions, stirred and heated, and reacted at 120° C. for 2 h, and then 5 mL of hydrochloric ...

Example Embodiment

[0139] Example 2: Synthesis of compound H-50

[0140] (two)

[0141] The preparation method is similar to that of Example 1, except that re-3 in step (2) of Example 1 is replaced with an equimolar amount of re-4 to finally obtain the target compound H-50 (yield 78%).

[0142] LC-MS: m / z: calculated value: C58H36N4OS: 837.00, measured value: 836.79.

[0143] Elemental analysis results of the compound: calculated value: C58H36N4OS (%): C 83.23, H 4.34, N 6.69; test value: C 83.24, H 4.35, N 6.70.

Example Embodiment

[0144] Example 3: Synthesis of compound H-53

[0145] (two)

[0146] The preparation method is similar to that of Example 1, except that re-3 in step (2) of Example 1 is replaced with an equimolar amount of re-5 to finally obtain the target compound H-53 (yield 75%).

[0147] LC-MS: m / z: calculated value: C56H34N6OS: 838.97, measured value: 838.61.

[0148] Elemental analysis results of the compound: calculated value: C56H34N6OS (%): C 80.17, H 4.08, N 10.02; test value: C 80.18, H 4.07, N 10.04.

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Abstract

The invention discloses a compound, a display panel and a display device. The compound has a structure as shown in formula 1; and in the formula 1, X, a1, a2, b<1> to b<16>, L<1>, L<2>, Q<1>, Q<2>, n1and n2 are respectively 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 technical field of organic luminescence, and in particular 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 utilizes an organic thin film layer to generate electroluminescent light. Specifically, under the drive of an external electric field, OLED injects holes and electrons from the anode and cathode respectively; the holes and electrons migrate to the light-emitting layer respectively and combine in the organic light-emitting material to generate excitons; the excitons in the excited state 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] Typically, a hole transport layer (HTL) comprising a hole transport material (HTM) and an elect...

Claims

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Application Information

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IPC IPC(8): C07D335/04C07D409/04C07D409/14C07D471/04C07D413/04C07D413/14C07D519/00C07D495/10C07D311/96C07D405/14C07D405/04C07D491/107C07F9/6553C07F9/655H01L51/50H01L51/54
CPCC07D335/04C07D409/04C07D409/14C07D471/04C07D413/04C07D413/14C07D519/00C07D495/10C07D311/96C07D405/14C07D405/04C07D491/107C07F9/655372C07F9/65522H10K85/656H10K85/6565H10K85/654H10K85/6576H10K85/6574H10K85/657H10K85/6572H10K50/18H10K50/16H10K50/11
Inventor 冉佺高威牛晶华张磊代文朋
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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