Title:
DISPLAY SUBSTRATE AND MANUFACTURING METHOD THEREFOR, AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/151681
Kind Code:
A1
Abstract:
A display substrate and a manufacturing method therefor, and a display apparatus. In a display substrate (100), each sub-pixel (300) comprises: a conductive light-shielding structure (122); a buffer layer (130), which is located on the side of the conductive light-shielding structure (122) that is away from a base substrate (110); a semiconductor layer (140), which is located on the side of the buffer layer (130) that is away from the conductive light-shielding structure (122); an inter-layer insulating layer (170), which is located on the side of the semiconductor layer (140) that is away from the buffer layer (130); and a conductive layer (180), which is located on the side of the inter-layer insulating layer (170) that is away from the semiconductor layer (140), and comprises a conductive structure (181). The conductive light-shielding structure (122) comprises a first main body part (1220) and a first recessed part (1224), wherein the average thickness of the first recessed part (1224) in a direction perpendicular to the base substrate (110) is less than the thickness of the first main body part (1220) in the direction perpendicular to the base substrate (110). The display substrate (100) further comprises a first contact hole (251), wherein the first contact hole (251) penetrates the inter-layer insulating layer (170) and the buffer layer (130). The conductive structure (181) is connected to the first recessed part (1224) by means of the first contact hole (251). Therefore, the display substrate can improve the effectiveness of an electrical connection between a conductive structure and a conductive light-shielding structure.
Inventors:
XU CHENG (CN)
XU CHEN (CN)
XU CHEN (CN)
Application Number:
PCT/CN2021/105278
Publication Date:
July 21, 2022
Filing Date:
July 08, 2021
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
H01L27/32; H01L27/12
Foreign References:
| CN112366226A | 2021-02-12 | |||
| CN110854140A | 2020-02-28 | |||
| CN111370428A | 2020-07-03 | |||
| CN111370426A | 2020-07-03 | |||
| US20120075270A1 | 2012-03-29 | |||
| CN202110039159A | 2021-01-13 |
Other References:
See also references of EP 4071822A4
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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