Title:
ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/093094
Kind Code:
A1
Abstract:
The present application provides an organic electroluminescent device and a display apparatus. The organic electroluminescent device comprises a light-emitting layer, which comprises a triplet-triplet annihilation-type host and a fluorescent dye, wherein the fluorescent dye has a structure as shown in the following formula (1) or (2). When the fluorescent dye in the light-emitting layer of the organic electroluminescent device of the present application is matched with the triplet-triplet annihilation-type host, the voltage of the device can be reduced, and the light emission efficiency of the device can be improved.
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Inventors:
LI GUOMENG (CN)
DUAN LIAN (CN)
ZHANG YUEWEI (CN)
ZHANG DONGDONG (CN)
CAI MINGHAN (CN)
LI BAOYU (CN)
LI MENGZHEN (CN)
DUAN LIAN (CN)
ZHANG YUEWEI (CN)
ZHANG DONGDONG (CN)
CAI MINGHAN (CN)
LI BAOYU (CN)
LI MENGZHEN (CN)
Application Number:
PCT/CN2022/107504
Publication Date:
June 01, 2023
Filing Date:
July 22, 2022
Export Citation:
Assignee:
KUNSHAN GOVISIONOX OPTOELECTRONICS CO LTD (CN)
UNIV TSINGHUA (CN)
UNIV TSINGHUA (CN)
International Classes:
C07D471/06; C07D519/00; C07F5/02; C07F7/08; C09K11/06
Foreign References:
CN112898322A | 2021-06-04 | |||
CN111463352A | 2020-07-28 | |||
CN112996796A | 2021-06-18 | |||
CN111755615A | 2020-10-09 | |||
CN114171692A | 2022-03-11 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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