Title:
LIGHT EMITTING DEVICE, LIGHT EMITTING SUBSTRATE, AND LIGHT EMITTING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/245342
Kind Code:
A1
Abstract:
A light emitting device, a light emitting substrate, and a light emitting apparatus, relating to the technical field of display. The light emitting device comprises a first electrode; a second electrode arranged opposite to the first electrode; and a plurality of light emitting layers stacked between the first electrode and the second electrode, the plurality of light emitting layers comprising at least one first light emitting layer and at least one second light emitting layer, wherein the first light emitting layer comprises a first light emitting material and is configured to emit first light under the drive of a current or a voltage; the second light emitting layer comprises a second light emitting material and is configured to emit second light under the drive of a current or a voltage; the light emitting efficiency of the first light emitting material is greater than the light emitting efficiency of the second light emitting material; and the brightness conversion rate of light excitation of the first light on a color conversion material is less than the brightness conversion rate of light excitation of the second light on the color conversion material.
Inventors:
WANG BEI (CN)
WEN GUANYIN (CN)
DU XIAOBO (CN)
LIU HUAMENG (CN)
HAO YANJUN (CN)
WEN GUANYIN (CN)
DU XIAOBO (CN)
LIU HUAMENG (CN)
HAO YANJUN (CN)
Application Number:
PCT/CN2022/099859
Publication Date:
December 28, 2023
Filing Date:
June 20, 2022
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
H01L27/32; H01L51/52
Foreign References:
| CN110911447A | 2020-03-24 | |||
| US9368696B1 | 2016-06-14 | |||
| US6284394B1 | 2001-09-04 | |||
| CN111540766A | 2020-08-14 | |||
| CN104282839A | 2015-01-14 |
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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