Title:
ORGANIC LIGHT-EMITTING DIODE, METHOD FOR PREPARING ORGANIC LIGHT-EMITTING DIODE, DISPLAY PANEL, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/110181
Kind Code:
A1
Abstract:
Provided are an organic light-emitting diode, a method for preparing an organic light-emitting diode, a display panel, and a display device. The organic light-emitting diode comprises: an anode, a cathode, and a light-emitting layer located between the anode and the cathode. The light-emitting layer has a blue light host material; on the side of the light-emitting layer facing the anode, an electron blocking layer is provided in the direction away from the light-emitting layer; the electron blocking layer has a hole material; and the hole material has a structural formula as shown in the following formula (I), and the blue light host material has a structural formula as shown in the following formula (II).
Inventors:
LIU YANG (CN)
CHEN XUEQIN (CN)
SUN YUQIAN (CN)
QIU LIXIA (CN)
ZHANG DONGXU (CN)
CHEN XUEQIN (CN)
SUN YUQIAN (CN)
QIU LIXIA (CN)
ZHANG DONGXU (CN)
Application Number:
PCT/CN2020/132874
Publication Date:
June 02, 2022
Filing Date:
November 30, 2020
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
H01L51/50; C07C15/28; C07C15/38; C07C211/61; C07D307/91; C09K11/06; H05B33/14
Domestic Patent References:
| WO2009084268A1 | 2009-07-09 | |||
| WO2015162912A1 | 2015-10-29 |
Foreign References:
| CN107978683A | 2018-05-01 | |||
| CN110914244A | 2020-03-24 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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