Title:
DISPLAY PANEL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/232983
Kind Code:
A1
Abstract:
A display panel and a preparation method therefor. The display panel comprises a through hole (H) that penetrates through the display panel, a non-display region surrounding the through hole (H), and a display region surrounding the non-display region; the display panel is further provided with a water and oxygen isolation structure, and the water and oxygen isolation structure is located in the non-display region and comprises: a substrate (100); a plurality of annular isolation walls (201, 202, 203, 204) on the substrate (100), the plurality of annular isolation walls (201, 202, 203, 204) being arranged at the exterior of the through hole (H) at intervals from inside to outside, and each of the annular isolation walls (201, 202, 203, 204) surrounding the through hole (H); and a light-emitting layer (300), the projection of the light-emitting layer (300) on the substrate (100) covering the projections of the annular isolation walls (201, 202, 203, 204) on the substrate (100) and being located on a side of the annular isolation walls (201, 202, 203, 204) away from the substrate (100); in the outward direction along the center of the through hole (H), at least one side of at least one of the plurality of annular isolation walls (201, 202, 203, 204) has an undercut such that the light-emitting layer (300) is discontinuous at the undercut, and any two adjacent opposite sides of the plurality of annular isolation walls (201, 202, 203, 204) do not simultaneously have an undercut.
Inventors:
ZHAO WUYANG (CN)
GUO XIAOLIANG (CN)
SONG LIANG (CN)
LIU GUODONG (CN)
DONG ZHONGFEI (CN)
GUO XIAOLIANG (CN)
SONG LIANG (CN)
LIU GUODONG (CN)
DONG ZHONGFEI (CN)
Application Number:
PCT/CN2021/085915
Publication Date:
November 25, 2021
Filing Date:
April 08, 2021
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
CHENGDU BOE OPTOELECT TECH CO (CN)
CHENGDU BOE OPTOELECT TECH CO (CN)
International Classes:
H01L51/52; H01L21/77; H01L27/32; H01L51/56
Foreign References:
| CN108666347A | 2018-10-16 | |||
| CN111564569A | 2020-08-21 | |||
| CN111146366A | 2020-05-12 | |||
| CN111180465A | 2020-05-19 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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