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1. (WO2018120365) OLED BACKPLATE AND MANUFACTURING METHOD THEREFOR

Pub. No.:    WO/2018/120365    International Application No.:    PCT/CN2017/073596
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Feb 16 00:59:59 CET 2017
IPC: H01L 27/32
H01L 21/77
Applicants: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
深圳市华星光电技术有限公司
Inventors: BAI, Dan
白丹
HSU, Yuanjun
徐源竣
Title: OLED BACKPLATE AND MANUFACTURING METHOD THEREFOR
Abstract:
The present invention provides an OLED backplate and a manufacturing method therefor. The manufacturing method for an OLED backplate of the present invention comprises forming a planarization layer on an interlayer dielectric layer. On one hand, the planarization layer can serve as a mask for an interlayer dielectric layer etching process; on the other hand, the planarization layer can make the surface of a second source prepared on the surface of the planarization layer flat, thereby facilitating the increase of the area of a light emitting region of an OLED and increasing the aperture ratio. By providing a planarization layer on an interlayer dielectric layer, the OLED backplate of the present invention makes the surface of a second source prepared on the surface of the planarization layer flat, thereby implementing a large area of a light emitting region of an OLED and a high aperture ratio.