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Novel light-emitting compound and organic light-emitting element containing same

A technology of organic light-emitting elements and light-emitting compounds, applied in the field of organic light-emitting elements and new light-emitting compounds, which can solve the problems of high driving voltage, difficulty in practical application, and low efficiency, and achieve the effects of low driving voltage, low power consumption, and high efficiency

Active Publication Date: 2019-03-19
DONGJIN SEMICHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, many compounds have been known as substances used in such organic light-emitting elements, but in the case of organic light-emitting elements using conventionally known substances, due to high driving voltage, low efficiency, and short life, they are being put into practical use. there are many difficulties

Method used

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  • Novel light-emitting compound and organic light-emitting element containing same
  • Novel light-emitting compound and organic light-emitting element containing same
  • Novel light-emitting compound and organic light-emitting element containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Embodiment 1: the synthesis of compound 1

[0097]

[0098] 2.0g of the above intermediate 01, 4.6g of 9-(3'-bromo-[1,1'-biphenyl]-3-yl)-9H-carbazole, 1.4g of t-BuONa, 0.35g of PD 2 (dba) 3 , 0.5ml of (t-Bu) 3 P was dissolved in 30 ml of toluene, and then stirred under reflux. After confirming the termination of the reaction by TLC, the organic layer was extracted with MC, filtered under reduced pressure, and purified on a column to obtain 1.77 g of compound 1 (yield 35%).

[0099] m / z: 525.18 (100.0%), 526.19 (40.3%), 527.19 (8.1%), 528.19 (1.2%), 526.18 (1.1%)

Embodiment 2

[0100] Embodiment 2: the synthesis of compound 2

[0101]

[0102] Compound 2 was synthesized by the same method as Compound 1 except using the above-mentioned Intermediate 05.

[0103] m / z: 526.18 (100.0%), 527.18 (40.5%), 528.19 (7.5%), 529.19 (1.0%)

Embodiment 3

[0104] Embodiment 3: the synthesis of compound 3

[0105]

[0106] Compound 3 was synthesized by the same method as Compound 1 except using the above-mentioned Intermediate 33.

[0107]m / z: 542.16 (100.0%), 543.16 (40.0%), 544.16 (8.3%), 544.15 (4.5%), 545.16 (1.9%), 543.15 (1.5%)

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Abstract

The organic light-emitting compound of the present invention has excellent charge transfer properties, high triplet energy and high Tg, so it can have low driving voltage, high efficiency, low power consumption and long life when applied to organic light-emitting elements.

Description

technical field [0001] The present invention relates to novel light-emitting compounds and organic light-emitting elements comprising them. Background technique [0002] Recently, self-illuminating organic light-emitting devices that can be driven at low voltages have superior viewing angles and contrast ratios compared to liquid crystal displays (LCDs), which are mainstream flat panel display devices, and can achieve light weight without requiring a backlight. And thin, also advantageous in terms of power consumption, color reproduction range is wide, so it is attracting attention as a next-generation display element. [0003] Materials used as organic layers in organic light-emitting devices can be roughly classified into light-emitting materials, hole-injecting materials, hole-transporting materials, electron-transporting materials, and electron-injecting materials according to their functions. The above-mentioned luminescent materials can be divided into high-molecular ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D491/12H01L51/50C09K11/06
CPCH05B33/14C09K11/06C09K2211/104C09K2211/1048C09K2211/1051C09K2211/1033C09K2211/1037C09K2211/1055C09K2211/1062C09K2211/1066H10K50/00H10K85/657
Inventor 咸昊完金奉记安贤哲金东骏韩政佑金槿泰李萤振林东焕
Owner DONGJIN SEMICHEM CO LTD
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