Title:
DISPLAY PANEL AND MANUFACTURING METHOD THEREFOR, AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/217881
Kind Code:
A1
Abstract:
Provided in the present disclosure are a display panel and a manufacturing method therefor, and a display apparatus. The display panel comprises: an anode layer, comprising first and second anodes, which are respectively located in first and second sub-pixels; a hole transport layer, comprising first and second hole transport layers, which are respectively located in the first and second sub-pixels; a buffer layer, comprising at least one of first and second buffer layers, which are respectively located in the first and second sub-pixels; a light-emitting layer, comprising first and second light-emitting layers, which are respectively located in the first and second sub-pixels, wherein the HOMO energy level difference between the first light-emitting layer and the first hole transport layer is a first difference, which is greater than 0, and the absolute value of the HOMO energy level difference between the second light-emitting layer and the second hole transport layer is greater than 0 and less than the first difference; and a cathode. The HOMO energy levels of a plurality of first buffer sub-layers of the first buffer layer gradually increase in the direction from the first hole transport layer to the first light-emitting layer. The HOMO energy level difference between the second light-emitting layer and the second buffer layer or the HOMO energy level difference between the second buffer layer and the second hole transport layer is greater than or equal to 0.3 eV.
Inventors:
HAO YANJUN (CN)
QU CAIYU (CN)
DU XIAOBO (CN)
QU CAIYU (CN)
DU XIAOBO (CN)
Application Number:
PCT/CN2021/125642
Publication Date:
October 20, 2022
Filing Date:
October 22, 2021
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
H01L51/50
Foreign References:
| CN113130805A | 2021-07-16 | |||
| CN103872087A | 2014-06-18 | |||
| CN101079471A | 2007-11-28 | |||
| CN111211236A | 2020-05-29 | |||
| US20180006090A1 | 2018-01-04 | |||
| JP2019009331A | 2019-01-17 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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