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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)
Application Number:
PCT/CN2022/107504
Publication Date:
June 01, 2023
Filing Date:
July 22, 2022
Export Citation:
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Assignee:
KUNSHAN GOVISIONOX OPTOELECTRONICS CO LTD (CN)
UNIV TSINGHUA (CN)
International Classes:
C07D471/06; C07D519/00; C07F5/02; C07F7/08; C09K11/06
Foreign References:
CN112898322A2021-06-04
CN111463352A2020-07-28
CN112996796A2021-06-18
CN111755615A2020-10-09
CN114171692A2022-03-11
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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