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Title:
ORGANIC ELECTROLUMINESCENT DEVICE, DISPLAY PANEL, DISPLAY DEVICE AND LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/134074
Kind Code:
A1
Abstract:
An organic electroluminescent device, a display panel, a display device and a light-emitting device are provided, belonging to the technical field of display. The organic electroluminescent device comprises an anode, an electron blocking layer, a buffer layer, an organic light-emitting layer and a cathode, which are sequentially stacked, wherein the thickness of the buffer layer is in the range of 1 to 100 nm, and the material of the buffer layer includes a compound as shown in chemical formula (I). The service life of the organic electroluminescent device can be prolonged.

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Inventors:
CHEN XUEQIN (CN)
LIU YANG (CN)
Application Number:
PCT/CN2020/139629
Publication Date:
June 30, 2022
Filing Date:
December 25, 2020
Export Citation:
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Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
C07D491/048; C07D495/04; C07D519/00; C09K11/06; H01L51/50
Domestic Patent References:
WO2013179645A12013-12-05
WO2014057659A12014-04-17
Foreign References:
JP2015019019A2015-01-29
KR20180138422A2018-12-31
KR20190010499A2019-01-30
CN107619412A2018-01-23
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
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