Compound, hole transport material and organic electroluminescent device

Abstract

Embodiments of the present invention provide a compound of general formula (I), and can be used in hole transport materials. The compound has a diversified fused heterocyclic arylamine connected parent structure and is high in bond energy between atoms and has good thermal stability and is beneficial to intermolecular solid accumulation and is high in hole transition capability and can effectivelyreduce the driving voltage of an organic electroluminescent device, improve the current efficiency of the organic electroluminescent device and prolong the service life of the organic electroluminescent device when being used as a hole transport layer material. The invention further provides the organic electroluminescent device and a display device containing the compound shown in the general formula (I).

Description

technical field

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

[0002] Electroluminescence (EL) refers to the phenomenon that luminescent materials emit light when excited by current and voltage under the action of an electric field. It is a luminescent process that directly converts electrical energy into light energy. 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 manufacturin...

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