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

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

Active Publication Date: 2020-04-21
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

[0097] Example 1: Synthesis of Compound 1

[0098]

[0099] 2.5g of the above intermediate A, 3.99g of 4-bromo-2,6-diphenylpyridine, 1.54g of t-BuONa, 0.40g of Pd 2 (dba) 3 , 0.5ml (t-Bu) 3 P was dissolved in 40 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 2.58 g of compound 1 (yield 52%).

[0100] m / z: 462.21 (100.0%), 463.21 (37.5%), 464.22 (6.7%)

Embodiment 2

[0101] Example 2: Synthesis of Compound 2

[0102] Compound 2 was synthesized by the same method as compound 1 except that 2-bromo-4,6-diphenylpyridine was used instead of 4-bromo-2,6-diphenylpyridine to react.

[0103] m / z: 462.21 (100.0%), 463.21 (37.5%), 464.22 (6.7%)

Embodiment 3

[0104] Example 3: Synthesis of Compound 3

[0105]

[0106] Compound 3 was synthesized by the same method as compound 1 except that 4-bromo-2,6-diphenylpyrimidine was used instead of 4-bromo-2,6-diphenylpyridine to react.

[0107] m / z: 463.20 (100.0%), 464.21 (36.0%), 465.21 (6.7%), 464.20 (1.1%)

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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 a novel light-emitting compound and an organic light-emitting element containing the same. Background technique [0002] Recently, self-luminous organic light-emitting elements that can be driven at a low voltage are superior in field of view, contrast, etc., compared to liquid crystal displays (LCDs), which are mainstream flat-panel display elements, and can be light-weight without a backlight. It is also thin in power consumption and has a wide range of color reproduction, which has attracted attention as a next-generation display device. [0003] The materials used as the organic layer in organic light-emitting devices can be roughly classified into light-emitting materials, hole injection materials, hole transport materials, electron transport materials, electron injection materials, and the like according to their functions. The above-mentioned luminescent materials can be divided into macromolecules and low molecules ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D209/56C09K11/06C07D401/04H01L51/50
CPCC09K11/06C09K2211/1029H10K50/00H10K85/6572
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金成勋
Owner DONGJIN SEMICHEM CO LTD
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