Title:
ELECTROLUMINESCENT DEVICE AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/227438
Kind Code:
A1
Abstract:
An electroluminescent device and a display apparatus, for improving the efficiency and prolonging the service life of the electroluminescent device. The electroluminescent device comprises: an anode comprising a reflective material; a cathode arranged opposite to the anode and comprising a transflective material; n light-emitting functional layers laminated between the anode and the cathode, wherein n is an integer greater than 1; and each light-emitting functional layer comprises a light-emitting layer and an electron transport layer located at the side of the light-emitting layer close to the cathode, wherein the thickness of the electron transport layer in the light-emitting functional layer closest to the cathode is greater than that of the electron transport layers in the remaining light-emitting functional layers; and (n-1) charge generation layers located between two adjacent light-emitting functional layers.
Inventors:
WANG LINLIN (CN)
WU CHANGYEN (CN)
YOU JUANJUAN (CN)
SHEN YONGQI (CN)
BU BIN (CN)
SONG WENFENG (CN)
YAN GUANG (CN)
SUN LI (CN)
ZHANG DACHENG (CN)
WU CHANGYEN (CN)
YOU JUANJUAN (CN)
SHEN YONGQI (CN)
BU BIN (CN)
SONG WENFENG (CN)
YAN GUANG (CN)
SUN LI (CN)
ZHANG DACHENG (CN)
Application Number:
PCT/CN2021/125655
Publication Date:
November 03, 2022
Filing Date:
October 22, 2021
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
H01L51/50
Foreign References:
| CN113178526A | 2021-07-27 | |||
| CN107409456A | 2017-11-28 | |||
| CN104051642A | 2014-09-17 | |||
| CN105309047A | 2016-02-03 | |||
| US20170092870A1 | 2017-03-30 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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