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Novel compound and organic light-emitting element containing the same

A technology of organic light-emitting elements and compounds, applied in the field of new compounds and organic light-emitting elements containing it, can solve the problems of short life, high driving voltage, low efficiency, etc., and achieve the effect of improving electron injection effect and improving rigidity

Active Publication Date: 2022-07-26
DONGJIN SEMICHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, there are a wide variety of compounds that can be used as materials for the organic light-emitting device. Organic light-emitting devices made of known materials have encountered many difficulties in practical use due to their high driving voltage, low efficiency and short life. difficulty

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0113] Preparation of organic light-emitting elements

[0114] according to figure 1 The shown structure prepares an organic light-emitting element. In the organic light emitting element, the anode 11 / positive hole injection layer 12 / positive hole transport layer 13 / light emitting layer 14 / electron transport layer 15 / cathode 16 are laminated at one time from bottom to top.

[0115] The following substances were used for the positive hole injection layer 12, the positive hole transport layer 13, the light emitting layer 14, and the electron transport layer 15 of the examples and comparative examples.

[0116]

Embodiment 1

[0118] ultrasonically cleaned with distilled water A glass substrate coated with an indium zinc oxide (ITO) thin film. After cleaning with distilled water, ultrasonic cleaning with solvents such as isopropanol, acetone, and methanol, and drying, the substrate was transferred to a plasma cleaner and cleaned with oxygen plasma for 5 minutes. evaporator) to form a positive hole injection layer HI01 on the upper part of the ITO substrate And film positive hole transport layer Ref.4, Then, the above-mentioned light-emitting layer was formed into a film doped with BH01:BD01 5% Then, the electron transport layer was formed using Compound 1 and Liq in a 1:1 ratio Post-film LiF Aluminum (Al) Then, the device was encapsulated in a glove box to form an organic light-emitting device.

Embodiment 2 to Embodiment 9

[0120] An organic light-emitting element was produced by the method of Example 1, except that Compound 2 to Compound 10 were used instead of Compound 1 in forming the electron transport layer.

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Abstract

The present invention provides a novel compound and an organic light-emitting element comprising the same.

Description

technical field [0001] The present invention relates to a novel compound and an organic light-emitting element comprising the same. Background technique [0002] Compared with the liquid crystal display (LCD, liquid crystal display), which is the mainstream of the flat panel display device, the organic light-emitting element, which is a self-luminous type and can be driven at a low voltage, has excellent viewing angle, contrast and other properties and does not require a backlight (Backlight), Therefore, it is possible to achieve light, thin, and short, and it is also advantageous in terms of power consumption and has a wide color reproduction range, so it has recently attracted attention as a next-generation display device. [0003] Materials used as organic layers in organic light-emitting diodes can be roughly classified into light-emitting layer materials, positive hole injection layer materials, positive hole transport layer materials, electron transport layer materials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D251/24C07D403/10C07D401/10H01L51/00H01L51/50
CPCC07D401/10C07D403/10C07D251/24H10K50/00H10K50/16H10K85/111
Inventor 朴旻洙金槿泰安贤哲安慈恩姜京敏
Owner DONGJIN SEMICHEM CO LTD