US 11,672,147 B2
Display substrate, method for manufacturing display substrate, and display apparatus
Wei Li, Beijing (CN); Bin Zhou, Beijing (CN); Jun Liu, Beijing (CN); Ning Liu, Beijing (CN); Wei Song, Beijing (CN); Xuehai Gui, Beijing (CN); Xiaodong Zhang, Beijing (CN); and Rong Liu, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN); and HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., Anhui (CN)
Appl. No. 16/652,487
Filed by HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed May 16, 2019, PCT No. PCT/CN2019/087208
§ 371(c)(1), (2) Date Mar. 31, 2020,
PCT Pub. No. WO2020/228016, PCT Pub. Date Nov. 19, 2020.
Prior Publication US 2022/0052131 A1, Feb. 17, 2022
Int. Cl. H01L 27/32 (2006.01); H01L 51/56 (2006.01)
CPC H01L 27/3246 (2013.01) [H01L 27/3283 (2013.01); H01L 51/56 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate;
a plurality of first electrodes arranged in an array on the base substrate; and
a pixel defining layer defining a plurality of openings on the base substrate; the plurality of openings overlapping the plurality of first electrodes respectively;
wherein the pixel defining layer comprises a plurality of first pixel defining units and a plurality of second pixel defining units, and the plurality of second pixel defining units are disposed on the plurality of first pixel defining units;
the plurality of first pixel defining units are separated from one another; and
orthographic projections of the plurality of first pixel defining units on the base substrate fall within orthographic projections of the plurality of first electrodes on the base substrate respectively, and the plurality of second pixel defining units cover sidewalls of the plurality of first electrodes and separate adjacent first electrodes.