Organic electroluminescent material and application thereof

Abstract

The invention belongs to the technical field of organic electroluminescent display, and particularly relates to an organic electroluminescent material and an application thereof. The structural formula of the organic electroluminescent material is shown as a formula (I), an OLED device containing the organic electroluminescent material has relatively low driving voltage, high luminous efficiency and long service life, the power efficiency is improved, the power consumption is reduced, and the organic electroluminescent material has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescence display, and in particular relates to an organic electroluminescence material and its application. Background technique [0002] Electroluminescent devices (EL devices) are self-luminous devices that have the advantage of having a wider viewing angle, a higher contrast ratio and a faster response time. The first organic EL device reported in the world was developed by Dr. Deng Qingyun and others in the laboratory of Eastman Kodak in the United States. By using aromatic diamine small molecules and metal aluminum complexes as materials for the light-emitting layer, a Organic light-emitting diodes (organic light-emitting diodes, OLED) devices. [0003] The most important factor determining the luminous efficiency of an organic EL device is the luminescent material. Light emitting materials are classified into fluorescent materials, phosphorescent materials, and thermally activat...

AI Technical Summary

Problems solved by technology

Although organic EL devices containing phosphorescent host materials have higher current efficiency than organic EL devices containing fluorescent materials, their driving voltages are also higher, and th

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