Title:
DISPLAY SUBSTRATE AND PREPARATION METHOD THEREFOR, DISPLAY PANEL, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/190055
Kind Code:
A1
Abstract:
Provided are a display substrate and a preparation method therefor, a display panel, and a display device. The display substrate comprises a base substrate (1), the base substrate being provided with a display region and a non-display region, and the display substrate further comprises a data line metal layer (21), a first protective conductor layer (31), a passivation layer (4), and a connecting conductor layer (51) in the non-display region; the data line metal layer is provided on one side of the base substrate; the first protective conductor layer is provided on the side of the data line metal layer away from the base substrate; the passivation layer is provided on the side of the first protective conductor layer away from the base substrate, and a first through hole (41) is provided on the passivation layer; the connecting conductor layer is provided on the side of the passivation layer away from the base substrate, and the connecting conductor layer is connected to the first protective conductor layer by means of the first through hole such that the data line metal layer is conductively connected to the connecting conductor layer. The data line metal layer can be protected by the first protective conductor layer and prevented from being exposed to the air and from being in direct contact with other etchants which would cause harmful oxidation and corrosion. Thus, the metal bridging performance is improved.
Inventors:
TIAN CHUNGUANG (CN)
LI XIAOLONG (CN)
ZOU JIABIN (CN)
WEN NA (CN)
LI XIAOLONG (CN)
ZOU JIABIN (CN)
WEN NA (CN)
Application Number:
PCT/CN2020/141653
Publication Date:
September 30, 2021
Filing Date:
December 30, 2020
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
BEIJING BOE DISPLAY TECH CO (CN)
BEIJING BOE DISPLAY TECH CO (CN)
International Classes:
H01L27/12; G02F1/1362; H01L21/77
Foreign References:
| CN111403423A | 2020-07-10 | |||
| CN101349847A | 2009-01-21 | |||
| CN102466934A | 2012-05-23 | |||
| CN105425492A | 2016-03-23 | |||
| US20130015471A1 | 2013-01-17 |
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
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