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1. (WO2018218715) FLAT PANEL DISPLAY DEVICE AND TOP OLED THEREOF

Pub. No.:    WO/2018/218715    International Application No.:    PCT/CN2017/089675
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat Jun 24 01:59:59 CEST 2017
IPC: H01L 51/52
Applicants: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
深圳市华星光电半导体显示技术有限公司
Inventors: YUAN, Wei
袁伟
Title: FLAT PANEL DISPLAY DEVICE AND TOP OLED THEREOF
Abstract:
Disclosed are a flat panel display device (10) and a top OLED (100) thereof. The top OLED (100) comprises a light emitting unit (110) and a light output coupling unit (120) provided on a light output surface of the light emitting unit (110); and the light output coupling unit (120) comprises a first light output coupling layer (121) and a second light output coupling layer (122) which are successively laminated on the light output surface of the light emitting unit (110), the refractive index of the first light output coupling layer (121) being larger than that of the second light output coupling layer (122). According to the flat panel display device (10) and the top OLED (100) thereof, as the light output coupling layer having a gradually decreasing refractive index is provided on the light output surface, the external quantum efficiency of the OLED device is improved, being beneficial to increasing the light outputting effect.