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Compound, display panel and display device

A display panel and compound technology, which is applied in the fields of silicon organic compounds, compounds of Group 4/14 elements of the periodic table, organic chemistry, etc., can solve the problem of difficulty in developing doping materials, etc. , the effect of broadening the exciton recombination region

Active Publication Date: 2019-08-16
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

[0065] Synthesis of Compound H008

[0066]

[0067] In a 250ml round bottom flask, H008-1 (15mmol), 10mol% Pd(PPh 3 ) 4 ,20mol% PCy3, Ag 2 CO 3 (30mmol), K 2 CO 3 (30mmol), 4-chlorophenylboronic acid (18mmol) were added in dry toluene (100ml), refluxed under nitrogen atmosphere for 48 hours, the obtained intermediate was cooled to room temperature, added to water, then filtered through a diatomaceous earth pad, the filtrate Extracted with dichloromethane, washed with water, dried over anhydrous magnesium sulfate, filtered and evaporated, the crude product was purified by silica gel column chromatography to obtain intermediate product H008-2.

[0068] In a 250 ml round bottom flask, the intermediate product H008-2 (15 mmol), copper iodide (30 mmol), potassium tert-butoxide (100 mmol), 1,2-diaminocyclohexane (24 mmol) and 9H-carbazole ( 50mmol) was added to dry 1,4-dioxane (100ml), refluxed under nitrogen atmosphere for 48 hours, the obtained intermediate was cooled to ...

Embodiment 2

[0071] Synthesis of Compound H010

[0072]

[0073] In a 250ml round bottom flask, the intermediate product H008-1 (15mmol), copper iodide (15mmol), potassium tert-butoxide (65mmol), 1,2-diaminocyclohexane (12mmol) and phenoxazine (25mmol ) was added to dry 1,4-dioxane (100ml), refluxed under nitrogen atmosphere for 48 hours, the obtained intermediate was cooled to room temperature, added to water, then filtered through a diatomaceous earth pad, and the filtrate was washed with dichloromethane After extraction, washed with water, dried over anhydrous magnesium sulfate, filtered and evaporated, the crude product was purified by silica gel column chromatography to obtain the intermediate product H010-1.

[0074] In a 250ml round bottom flask, the intermediate product H010-1 (15mmol) and potassium acetate (40mmol) were mixed with dry 1,4-dioxane (60ml), Pd(PPh 3 ) 2 Cl2 (0.4mmol) and pinacol diboronate (25mmol) were mixed, and stirred at 90° C. under a nitrogen atmosphere fo...

Embodiment 3

[0078] Synthesis of Compound H016

[0079]

[0080] In a 250ml round bottom flask, the intermediate product H008-2 (15mmol), copper iodide (30mmol), potassium tert-butoxide (100mmol), 1,2-diaminocyclohexane (24mmol) and 3,6-bis Methoxy-9H-carbazole (50mmol) was added to dry 1,4-dioxane (100ml) and refluxed for 48 hours under a nitrogen atmosphere. The obtained intermediate was cooled to room temperature, added to water, and passed through silicon After filtration 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 H016.

[0081] Compound H016 elemental analysis (molecular formula C 42 h 46 f 3 N 3 o 4 ): Theoretical: C, 70.69; H, 6.45; F, 7.99; N, 5.89; O, 8.98. Test values: C, 70.69; H, 6.45; F, 7.99; N, 5.89; O, 8.98. ESI-MS (m / z) (M+) was obtained...

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Abstract

A compound, a display panel and a display device are provided. The invention provides a compound with a D-Pi-A type chemical structure. The compound has a structure shown as a chemical formula I, wherein L1 and L2 are independently selected from at least one of a single bond, an alkylene group, a cycloalkylene group, a heterocycloalkylene ring group, an arylene group, a heteroarylene group, a fused arylene group and a fused heteroarylene group; the electron donors D1 and D2 are and independently selected from at least one of alkyl, cycloalkyl, alkoxy, heterocyclic group, aryl, heteroaryl, fused arylene group, fused heteroarylene group, carbazolyl, diphenylamine group, triphenylamine group, acridine group and azine group; RF is selected from any one of-F, -CF3, -CF2H, -CF2CF3 and -SF3. As amain body material in an electroluminescent device, the compound has higher triplet state energy level ET, higher molecular density, higher glass transition temperature and higher thermal stability,so that the balanced migration of carriers is effectively improved, the exciton composite area is widened, and the light extraction efficiency is effectively improved. Therefore, the luminous efficiency and the service life of the device are greatly 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] There are two kinds of luminescence mechanisms: electrofluorescence and electrophosphorescence. Fluorescence is the light emitted by the radiation decay transition of singlet excitons, and phosphorescence is the light emitted by triplet excitons decaying to the ground state. According to the spin quantum statistical t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D401/04C07D401/10C07D401/14C07D413/14C07D417/14C07D487/04C07F7/08C09K11/06H01L51/50H01L51/54
CPCC07D401/04C07D401/10C07D413/14C07D487/04C07D401/14C07D417/14C07F7/0816C09K11/06C09K2211/1029C09K2211/1033C09K2211/104C09K2211/1044C09K2211/1037H10K85/636H10K85/657H10K85/40H10K85/6572H10K50/12
Inventor 代文朋高威牛晶华张磊李杨
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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