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Novel compound and orgarnic light emitting device containing same

A compound and chemical formula technology, applied in the field of new compounds and organic light-emitting elements containing them, can solve the problems of high driving voltage, difficulty in practical application, and low efficiency, and achieve low driving voltage, high triplet energy, and high efficiency.

Active Publication Date: 2017-04-19
DONGJIN SEMICHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In particular, until now, amine derivatives having a carbazole skeleton have been extensively studied for hole injection and hole transport materials used in such organic light-emitting elements, but have been limited due to high driving voltage, low efficiency, and short lifetime. There are many difficulties in practical

Method used

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  • Novel compound and orgarnic light emitting device containing same
  • Novel compound and orgarnic light emitting device containing same
  • Novel compound and orgarnic light emitting device containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0224] will be Thin film coated glass substrates with indium tin oxide (ITO) were cleaned ultrasonically with distilled water. After cleaning with distilled water, ultrasonically clean and dry with solvents such as isopropanol, acetone, methanol, etc., and then transfer to a plasma cleaner, use oxygen plasma to clean the above-mentioned substrate for 5 minutes, and then use a thermal vacuum coating machine (thermalevaporator) , on the top of the ITO substrate, the hole injection layer HT01 is fabricated film, compound as hole transport layer membrane. Then, as the above-mentioned light-emitting layer, BH01 was doped with 3% BD01 in host BH01 to fabricate membrane. Then, as an electron transport layer, fabricated with ET01:Liq (1:1) After the film is fabricated LiF film, Aluminum (Al) film, the device was sealed in a glove box (Encapsulation), thereby producing an organic light-emitting device.

Embodiment 2 to 20

[0226] By the same method as in Example 1, organic light-emitting devices were prepared using Compounds 2 to 20 to form a hole transport layer.

Embodiment 21

[0228] By the same method as in Example 1, an organic light-emitting device in which a hole transport layer was produced using a composition obtained by mixing Compound 4 and Compound 5 at a ratio of 50:50 (weight ratio) was fabricated.

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Abstract

The present invention relates to a novel compound and, especially, to a novel compound which, when applied to an organic light emitting device, has excellent hole injection and hole transport properties and simultaneously has an excellent electron blocking property, can implement high triplet energy and high Tg, and enables the organic light emitting device to have low driving voltage, low power consumption, high efficiency, and long lifetime.

Description

technical field [0001] The present invention relates to a novel compound and an organic light-emitting element comprising the same, especially relates to excellent hole injection and hole transport characteristics when applied to an organic light-emitting element, and excellent electron blocking characteristics at the same time, capable of achieving high triplet energy and high Tg, and enabling It is a new compound with low driving voltage, low power consumption, high efficiency and long life. Background technique [0002] In recent years, self-illuminating organic light-emitting elements that can be driven at low voltages have superior viewing angles and contrast ratios compared to liquid crystal displays (LCDs) that are the mainstream of flat panel display elements. Lightweight and thin, it is also advantageous in terms of power consumption, and the color reproduction range is wide, so it is attracting attention as a next-generation display element. [0003] Materials use...

Claims

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Application Information

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IPC IPC(8): C07D401/02C07D403/02C07D209/22C07D209/14C07D209/08C07D405/00C07D409/00C09K11/06H01L51/50
CPCC07D209/08C07D209/14C07D209/22C07D401/02C07D403/02C07D405/00C07D409/00C09K11/06C09K2211/1029C09K2211/1092C09K2211/1088H10K50/17C07D405/14C07D401/12C07D405/12C07D409/12C07D409/14C09B57/008H10K85/636H10K85/633H10K85/6572H10K50/15
Inventor 咸昊完金奉记金成勋安贤哲裴惟珍金东骏闵丙哲赵志恩朴旻洙李萤振林东焕
Owner DONGJIN SEMICHEM CO LTD
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