Title:
ORGANIC LIGHT-EMITTING DEVICE AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/201651
Kind Code:
A1
Abstract:
Provided are an organic light-emitting device and a display apparatus. The organic light-emitting device comprises: a light-emitting layer (500), comprising a first host material, a second host material, at least one auxiliary material, and at least one doping material. The first host material and the second host material form a first composite transmission material. The auxiliary material and the second host material form a second composite transmission material. S1(A)>S1(CH)>S1(C) and T1(A)>T1(CH)>T1(C), S1(A) being the lowest singlet state energy of the host material, S1(CH) being the lowest singlet state energy of the composite transmission material, S1(C) being the lowest singlet state energy of the doping material, T1(A) being the lowest triplet energy of the host material, T1(CH) being the lowest triplet energy of the composite transmission material, and T1(C) being the lowest triplet energy of the doping material. This helps to suppress Dexter energy transfer and reduce energy loss, thereby increasing device efficiency.
Inventors:
SUN HAIYAN (CN)
ZHANG XIAOJIN (CN)
WANG DAN (CN)
WANG SIQI (CN)
ZHANG XIAOJIN (CN)
WANG DAN (CN)
WANG SIQI (CN)
Application Number:
PCT/CN2022/088278
Publication Date:
October 26, 2023
Filing Date:
April 21, 2022
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
H01L51/50
Foreign References:
| CN112909197A | 2021-06-04 | |||
| CN109994628A | 2019-07-09 | |||
| CN111416049A | 2020-07-14 | |||
| CN111653679A | 2020-09-11 | |||
| CN112151686A | 2020-12-29 |
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
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