| abstract |
The present invention relates to an aromatic amine compound and an organic light-emitting device comprising the compound. The structural formula of the aromatic amine compound is as follows: The aromatic amine compound of the present invention has a higher refractive index, and when it is used as a cap layer of an organic light emitting display device, the light extraction efficiency of a top emission organic optoelectronic device can be improved. The aromatic amine compound of the present invention has a small extinction coefficient in the blue light region, hardly absorbs blue light, which is beneficial to improve the luminous efficiency; at the same time, it can effectively block water and oxygen in the external environment, and protect the OLED display panel from water and oxygen. Erosion, high-efficiency, long-life organic light-emitting devices can be achieved. The organic light-emitting device of the present invention uses a material for an organic EL element with a high refractive index, excellent film stability and durability as the material for the cover layer, which can greatly improve the light extraction efficiency compared with the known organic light-emitting device. . The device of the present invention is an organic light-emitting device that can achieve high efficiency and long life. |