A kind of organic compound and organic electroluminescent device

An organic compound, electroluminescence technology, applied in the fields of organic chemistry, electro-solid devices, luminescent materials, etc., can solve the problems of backwardness and insufficient development of organic electroluminescent materials, avoid reverse transfer, improve chemical stability and thermal stability. The effect of improving stability, efficiency and life
CN112979624BActive Publication Date: 2021-08-10NANJING TOPTO MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING TOPTO MATERIALS CO LTD
Publication Date
2021-08-10

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Abstract

The invention discloses an organic compound and an organic electroluminescence device, which relates to the technical field of organic electroluminescence, and its structural formula is as follows: wherein, X is O or S; R1‑R3, R5‑R14, R18, R19 , R20 are the same or different, each independently selected from hydrogen, deuterium, substituted or unsubstituted C6-C20 aryl, substituted or unsubstituted C5-C20 heteroaryl; the compound of the present invention is applied to useful In the electroluminescent device, under the same current density, the luminous efficiency of the device has been greatly improved, the starting voltage has been reduced, the power consumption has been relatively reduced, and the life span has been increased accordingly.
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Description

technical field

[0001] The invention relates to the technical field of organic electroluminescence, in particular to an organic compound and an organic electroluminescence device. Background technique

[0002] Organic Light-emitting Devices (OLEDs) are spontaneous light-emitting devices that utilize the following principle: when an electric field is applied, fluorescent substances emit light through the recombination of holes injected from the positive electrode and electrons injected from the negative electrode. This self-luminous device has the characteristics of low voltage, high brightness, wide viewing angle, fast response, good temperature adaptability, etc., and is ultra-thin, and can be fabricated on flexible panels. It is widely used in mobile phones, tablet computers, TVs, lighting, etc. and other fields.

[0003] Compared with the crystal layer of LED (light-emitting diode) or LCD (liquid crystal display), the organic plastic layer of OLED is thinner, lighter and...

Claims

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