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1. (WO2014205998) COA SUBSTRATE AND MANUFACTURING METHOD THEREFOR, AND DISPLAY DEVICE

Pub. No.:    WO/2014/205998    International Application No.:    PCT/CN2013/087973
Publication Date: Thu Jan 01 00:59:59 CET 2015 International Filing Date: Thu Nov 28 00:59:59 CET 2013
IPC: H01L 21/77
H01L 27/12
G02F 1/1362
G02F 1/1368
G02F 1/1333
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
Inventors: HUI, Guanbao
惠官宝
Title: COA SUBSTRATE AND MANUFACTURING METHOD THEREFOR, AND DISPLAY DEVICE
Abstract:
Provided are a COA substrate and a manufacturing method therefor, and a display device. The method comprises: forming a thin-film transistor (10) on a substrate (1); forming a colour film layer (6) pattern on the underlayment substrate (1) on which the thin-film transistor (10) is formed; forming a pattern comprising a colour film via hole (5) on the colour film layer (6) by means of a patterning process, wherein the patterning process comprises a graying process; and forming a pattern comprising a pixel electrode (7) on the substrate (1), wherein the pixel electrode (7) is electrically connected to a drain electrode (12) of the thin-film transistor (10) by means of the colour film via hole (5).