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Compound, display panel and display device

A compound and connection position technology, which is applied in the field of organic electroluminescent materials, can solve problems such as the difficulty in developing doped materials, and achieve the effects of improving equilibrium migration, widening the exciton recombination area, and ordering the structure and high stability

Pending Publication Date: 2019-08-23
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

[0088] Synthesis of Compound H14

[0089]

[0090] In a 250ml round bottom flask, 1,3-dibromoadamantane (15mmol), cuprous oxide (40mmol), and DMAC (20ml) were refluxed for 48 hours under an argon atmosphere, and the obtained intermediate was cooled to room temperature, and added water, then filtered through a pad of celite, the filtrate was extracted with dichloromethane, and the organic phase was washed with water and dried over anhydrous magnesium sulfate. After filtration and evaporation of the organic phase, the crude product is purified by silica gel column chromatography to give intermediate product H14-1.

[0091] In a 250ml round bottom flask, the intermediate product H14-1 (15mmol) and potassium acetate (40mmol) were mixed with dry 1,4-dioxane (60ml), Pd(PPh 3 ) 2 Cl 2 (0.4mmol) and pinacol diboronate (25mmol) were mixed, and stirred at 90° C. under a nitrogen atmosphere for 48 hours. The obtained intermediate was cooled to room temperature, added to water, the...

Embodiment 2

[0095] Synthesis of compound H23

[0096]

[0097] In a 250ml round bottom flask, 1,5-dibromoadamantane (15mmol) and potassium acetate (40mmol) were mixed with dry 1,4-dioxane (60ml), Pd(PPh 3 ) 2 Cl 2 (0.4mmol) and pinacol diboronate (25mmol) were mixed, and stirred at 90° C. under a nitrogen atmosphere for 48 hours. The obtained intermediate was cooled to room temperature, added to water, then filtered through a pad of celite, the filtrate was extracted with dichloromethane, and the organic phase was washed with water and dried over anhydrous magnesium sulfate. After filtration and evaporation, the crude product was purified by silica gel column chromatography to give intermediate H023-2.

[0098] In a 250ml round bottom flask, H023-2 (10mmol), (4-bromophenyl) diphenylphosphine oxide (12mmol) 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 ...

Embodiment 3

[0102] Synthesis of Compound H29

[0103]

[0104] In a 250ml round bottom flask, 1,3-dibromoadamantane (15mmol), cuprous oxide (40mmol), DMAC (20ml) were refluxed for 48 hours under an argon atmosphere, the obtained intermediate was cooled to room temperature, and added water, then filtered through a pad of celite, the filtrate was extracted with dichloromethane, and the organic phase was washed with water and dried over anhydrous magnesium sulfate. After filtering and evaporating the organic phase, the crude product was purified by silica gel column chromatography, Intermediate H29-1 was obtained.

[0105] In a 250ml round bottom flask, the intermediate product H29-1 (15mmol) and potassium acetate (40mmol) were mixed with dry 1,4-dioxane (60ml), Pd(PPh 3 ) 2 Cl 2 (0.4mmol) and pinacol diboronate (25mmol) were mixed, and stirred at 90° C. under a nitrogen atmosphere for 48 hours. The obtained intermediate was cooled to room temperature, added to water, then filtered th...

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Abstract

The present invention relates to the technical field of OLED, and provides a light emitting main body material including an adamantane structure and having a structure represented by the formula (I).L1 and L2 are each independently selected from the group consisting mainly of a single bond, phenyl, naphthyl, and the like; electron donor D is mainly selected from that group consisting of carbazolegroup and derivatives thereof, diphenylamino groups and derivatives thereof, acridine group and derivatives thereof; electron acceptor A is mainly selected from nitrogen-containing heterocyclic substituents, cyano-containing substituent, and triarylboron substituents. D-(Pi)-sigma-(Pi)-A structure in the compound of the invention has bipolarity, and the intermediate sigma bond can effectively interrupt the charge transfer between electron donor D and electron acceptor A, so that the excited state is limited to the local excited state in the fragment of electron donor D or electron acceptor A,thus the compound has a small excited state dipole moment. When it is used as the main material of the light emitting layer of the OLED device, the efficiency roll-off of the blue light material canbe effectively reduced, and the luminous brightness and the luminous efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescent materials, in particular to a compound used as an OLED light-emitting host material, a display panel and a display device containing 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 emi...

Claims

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Application Information

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IPC IPC(8): C07D403/10C07D401/10C07D487/04C07D417/10C07D413/10C07D209/86C07D403/08C07D401/14C07D495/04C07D413/08C07D413/14C07D403/14C07D209/88C07D471/04C07D251/24C07D219/02C07F5/02C07F9/53C07F9/572C07F9/6558C09K11/06H01L51/50H01L51/54
CPCC07D403/10C07D401/10C07D487/04C07D417/10C07D413/10C07D209/86C07D403/08C07D401/14C07D495/04C07D413/08C07D413/14C07D403/14C07D209/88C07D471/04C07D251/24C07D219/02C07F5/027C07F9/5325C07F9/5728C07F9/65586C09K11/06C09K2211/1007C09K2211/1011C09K2211/1029C09K2211/1033C09K2211/1044C09K2211/1059C09K2211/1088C09K2211/1092C09K2211/1051C09K2211/104H10K85/615H10K85/655H10K85/631H10K85/626H10K85/654H10K85/657H10K85/6574H10K85/40H10K85/6572H10K50/11H10K85/658Y02T90/167H10K2101/10H10K85/322
Inventor 代文朋高威牛晶华张磊卢艳邓东阳
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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