Compound, hole transport material, organic light-emitting device and display device

Abstract

The invention provides a compound of a general formula (I), which can be used in hole transport materials. The compound has a parent structure of asymmetric diarylamine substituted dibenzoheterocycle,has high bond energy between atoms, has good thermal stability, is beneficial to solid accumulation between molecules, and has strong hole transition capability. When the compound is used as a hole transport material, the compound can effectively reduce the driving voltage of an organic light-emitting device, improve the luminous efficiency and prolong the service life of the organic light-emitting device. The invention further provides an organic light-emitting device containing the compound shown in the general formula (I) and a display device .

Description

technical field

[0001] The present application relates to the field of organic light-emitting display technology, in particular to a compound, a hole transport material, an organic electroluminescent device and a display device. Background technique

[0002] Organic electroluminescent display (hereinafter referred to as OLED) has a series of advantages such as self-luminescence, low-voltage DC drive, full curing, wide viewing angle, light weight, simple composition and process, etc. Compared with liquid crystal display, organic electroluminescent display is not It requires a backlight source, has a large viewing angle and low power, and its response speed can reach 1000 times that of a liquid crystal display, but its manufacturing cost is lower than that of a liquid crystal display with the same resolution. Therefore, organic electroluminescent devices have very broad application prospects. With the continuous advancement of OLED technology in the two major fields of lighti...

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