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1. (WO2018119966) OLED DISPLAY

Pub. No.:    WO/2018/119966    International Application No.:    PCT/CN2016/113323
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Sat Dec 31 00:59:59 CET 2016
IPC: H01L 27/32
Applicants: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
武汉华星光电技术有限公司
Inventors: LI, Xianjie
李先杰
Title: OLED DISPLAY
Abstract:
An OLED display comprises a substrate (1), a thin film transistor layer (11), a blue-light OLED (2), a cover plate (3), and a color conversion layer (4). The color conversion layer (4) comprises several red conversion units (41) and green conversion units (42). The red and green conversion units (41, 42) are made of organic metal halide perovskite materials. The blue light emitted by the blue-light OLED (2) corresponds to red, green, and blue sub-pixel regions, and is converted by the red conversion units (41) into red light and by the green conversion units (42) into green light before being directly emitted through the cover plate (3), such that red, green, and blue lights having high color saturation are obtained, and color display having a high color gamut is realized. Since the red, green, and blue sub-pixel regions correspond to the blue-light OLED (2) of the same structure, a fine mask is not needed in production of the OLED display, the resolution and stability of the OLED display can be effectively improved, and the production process is simple.