Title:
METHOD FOR TRANSFERRING LIGHT-EMITTING ELEMENT, AND DISPLAY PANEL
Document Type and Number:
WIPO Patent Application WO/2023/024041
Kind Code:
A1
Abstract:
A method for transferring a light-emitting element (100), comprising: providing a plurality of light-emitting elements (100), each light-emitting element (100) comprising a first light-emitting unit (20), a substrate (10) and a second light-emitting unit (30) which are stacked in sequence, the first light-emitting units (20) each comprising a first epitaxial structure (21) and a first electrode group (22) which are sequentially stacked on one side of the substrate (10), and the second light-emitting units (30) each comprising a second epitaxial structure (31) and a second electrode group (32) which are sequentially stacked on the other side of the substrate (10), wherein the light-emitting colors of the first light-emitting units (20) and the second light-emitting units (30) are different; providing display backplanes (200), one side of each display backplane (200) being provided with a plurality of grooves (50), and a side wall of each groove (50) being provided with a first pad group (60) and a second pad group (70); and embedding in one-to-one correspondence the plurality of light-emitting elements (100) in the plurality of grooves (50), the first electrode groups (22) being bonded to the first pad groups (60), and the second electrode groups (32) being bonded to the second pad groups (70).
Inventors:
PAN FEI (CN)
LIU CHENG-MING (CN)
LIU CHENG-MING (CN)
Application Number:
PCT/CN2021/114854
Publication Date:
March 02, 2023
Filing Date:
August 26, 2021
Export Citation:
Assignee:
CHONGQING KONKA PHOTOELECTRIC TECH RESEARCH INSTITUTE CO LTD (CN)
International Classes:
H01L27/15
Foreign References:
| CN212934647U | 2021-04-09 | |||
| CN213635982U | 2021-07-06 | |||
| CN111540762A | 2020-08-14 | |||
| CN211265475U | 2020-08-14 | |||
| CN109585380A | 2019-04-05 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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