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1. (WO2018107722) ORGANIC LIGHT EMITTING DIODE DISPLAY SUBSTRATE, ORGANIC LIGHT EMITTING DIODE DISPLAY APPARATUS, AND METHOD OF FABRICATING ORGANIC LIGHT EMITTING DIODE DISPLAY SUBSTRATE

Pub. No.:    WO/2018/107722    International Application No.:    PCT/CN2017/090688
Publication Date: Fri Jun 22 01:59:59 CEST 2018 International Filing Date: Fri Jun 30 01:59:59 CEST 2017
IPC: H01L 27/32
H01L 51/56
H01L 51/00
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
Inventors: ZHU, Ruhui
Title: ORGANIC LIGHT EMITTING DIODE DISPLAY SUBSTRATE, ORGANIC LIGHT EMITTING DIODE DISPLAY APPARATUS, AND METHOD OF FABRICATING ORGANIC LIGHT EMITTING DIODE DISPLAY SUBSTRATE
Abstract:
A method of fabricating an organic light emitting diode display substrate having a subpixel region(201) and an inter-subpixel region(202) is provided. The method includes forming a pixel definition layer(20) on the base substrate(10), the pixel definition layer(20) being formed in the inter-subpixel region(202) and defining the subpixel region(201) of the organic light emitting diode display substrate; forming an insulating dielectric layer(50) on a side of the pixel definition layer(20) distal to the base substrate(10), the insulating dielectric layer(50) being formed to define a first aperture region(501) greater than the subpixel region(201); and, subsequent to forming the insulating dielectric layer(50), forming an organic light emitting layer(102) in each subpixel region(201) using a mask plate(30) placed on the insulating dielectric layer(50).