US 12,289,949 B2
Display substrate with isolation structure and filling structure, method for manufacturing the same and display device
Youwei Wang, Beijing (CN); Song Zhang, Beijing (CN); and Peng Cai, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Sep. 21, 2023, as Appl. No. 18/371,323.
Application 18/371,323 is a continuation of application No. 17/695,666, filed on Mar. 15, 2022, granted, now 11,800,742.
Application 17/695,666 is a continuation of application No. 16/770,056, granted, now 11,302,894, issued on Apr. 12, 2022, previously published as PCT/CN2019/128649, filed on Dec. 26, 2019.
Claims priority of application No. 201910016514.9 (CN), filed on Jan. 8, 2019.
Prior Publication US 2024/0015997 A1, Jan. 11, 2024
Int. Cl. H10K 50/844 (2023.01); H10K 59/12 (2023.01); H10K 71/00 (2023.01)
CPC H10K 50/844 (2023.02) [H10K 59/12 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A display substrate having a display area, an opening area being provided in the display area, wherein the display substrate comprises:
a base substrate;
at least one isolation structure provided on the base substrate and surrounding the opening area, wherein the isolation structure comprises a first sidewall;
a first filling structure provided on a side of the first sidewall away from the opening area, wherein the first filling structure comprises a second sidewall facing the first sidewall and a third sidewall facing away from the first sidewall;
a first inorganic thin film disposed between the isolation structure and the filling structure;
a second inorganic thin film covering the isolation structure and the first filling structure; and
a second filling structure, wherein the first filling structure and the second filling structure are spaced from each other, such that a height of the isolation structure in a direction perpendicular to a direction of the display substrate, and a height of any one of the first filling structure and the second filling structure in the direction perpendicular to the direction of the display substrate are higher than a height of a pixel defining layer in the direction perpendicular to the direction of the display substrate.