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Novel compound and organic electroluminescent device comprising same can provide excellent driving stability by preventing the recrystallization of the film due to high Tg

A compound and chemical formula technology, applied in the field of new compounds and organic light-emitting elements containing it, can solve the problems of high driving voltage, practical difficulties, short life, etc., achieve low voltage, improve hole mobility, and prevent recrystallization. Effect

Active Publication Date: 2017-06-23
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 compound and organic electroluminescent device comprising same can provide excellent driving stability by preventing the recrystallization of the film due to high Tg
  • Novel compound and organic electroluminescent device comprising same can provide excellent driving stability by preventing the recrystallization of the film due to high Tg
  • Novel compound and organic electroluminescent device comprising same can provide excellent driving stability by preventing the recrystallization of the film due to high Tg

Examples

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Effect test

Embodiment 1

[0221] will be Thin film coated glass substrates with indium tin oxide (ITO) were ultrasonically cleaned 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 top of the ITO substrate, DNTPD was fabricated as a hole injection layer film, compound 1 as a hole transport layer membrane. Then, as the above-mentioned light-emitting layer, the host BH01 was doped with 3% dopant BD01 to produce 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 Embodiment 24

[0223] Using the same method as in Example 1, compounds 2 to 24 were used to form a hole transport layer to fabricate an organic light-emitting device.

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Abstract

The present invention relates to a novel compound, and more particularly to a novel compound which is excellent in hole injection and hole transport properties when applied to an organic light-emitting device, so as to facilitate low-voltage driving while being excellent in electromagnetic shielding property, improving mobility, enabling low-voltage operation, and having high-efficiency and long service life. This invention can prevent recrystallization of the film due to high Tg and provide excellent driving stability.

Description

technical field [0001] The present invention relates to a novel compound and an organic light-emitting device comprising the above-mentioned compound, and particularly relates to a novel compound which, when applied to an organic light-emitting device, has excellent hole injection and hole transport characteristics, thereby enabling low-voltage driving, and at the same time It has excellent electromagnetic shielding properties, improves hole mobility, realizes low voltage, high efficiency, and long life, can prevent recrystallization of a thin film due to high Tg, and can achieve excellent driving stability. Background technique [0002] Recently, 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 reproduct...

Claims

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Application Information

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IPC IPC(8): C07D307/81C07D409/12C07D307/91C07D333/58C07D333/76C07D409/14C09K11/06H01L51/50
CPCC09K11/06C07D307/81C07D307/91C07D333/58C07D333/76C07D409/12C07D409/14C09K2211/1014C09K2211/1011C09K2211/1007C09K2211/1092C09K2211/1088H10K50/15H10K50/17C07D307/77C07D307/78H10K50/00
Inventor 咸昊完安贤哲金成勋裴惟珍金东骏闵丙哲韩政佑李萤振林东焕
Owner DONGJIN SEMICHEM CO LTD