Title:
WIRING SUBSTRATE AND MANUFACTURING METHOD THEREFOR, AND LIGHT-EMITTING SUBSTRATE AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/044912
Kind Code:
A1
Abstract:
The present application relates to the technical field of displays. Disclosed are a wiring substrate and a manufacturing method therefor, and a light-emitting substrate and a display apparatus. A first insulating layer in the wiring substrate may be located in a functional area, a lap joint area and a binding area. Therefore, during the process of etching a first insulating film to form the first insulating layer, only the part of the first insulating film that is located in the lap joint area needs to be etched, so as to form a first via hole, and it is not necessary to completely etch away the part of the first insulating film that is located in the binding area. Furthermore, a second conductive layer may be located on a flat surface of the side of the first insulating layer that is away from a base, such that an undercut structure is prevented from appearing in the second conductive layer, and thus a second insulating layer may be prevented from breaking at a climbing position of the second conductive layer, and the abnormal growth of specific metal is prevented from appearing at the boundary of the second conductive layer that is located in the lap joint area. Therefore, the yield of the wiring substrate is relatively high, and the display effect of the display apparatus is relatively good.
Inventors:
LEI JIE (CN)
TIAN JIAN (CN)
LIU CHUNJIAN (CN)
ZHANG JIANYING (CN)
MA YAJUN (CN)
XU JIAWEI (CN)
TIAN JIAN (CN)
LIU CHUNJIAN (CN)
ZHANG JIANYING (CN)
MA YAJUN (CN)
XU JIAWEI (CN)
Application Number:
PCT/CN2022/115604
Publication Date:
March 07, 2024
Filing Date:
August 29, 2022
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
HEFEI BOE RUISHENG TECH CO LTD (CN)
HEFEI BOE RUISHENG TECH CO LTD (CN)
International Classes:
H01L33/06; H01L27/12
Foreign References:
| CN110164879A | 2019-08-23 | |||
| CN112735262A | 2021-04-30 | |||
| CN109309101A | 2019-02-05 |
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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