Title:
COMPOUND, ORGANIC ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/227655
Kind Code:
A1
Abstract:
Provided are a compound, an organic electroluminescent device, and a display device. The compound has a structure as shown in formula I. The introduction of the substituent Ar2 at position 1 on a naphthalene ring can not only adjust the orthosteric resistance, but can also efficiently regulate the molecular distortion degree to reduce the molecular crystallinity; and secondly, the introduction of an aromatic amine group at position 2 and the introduction of a tri-substituted structure on the aromatic amine group can efficiently regulate the stereostructure of the molecule and increase the bulk density of the molecule, so that the designed material can meet the material requirements for devices. The compound of the present invention is applied to an organic electroluminescence device, and especially when serving as an electron blocking layer, same can improve the luminescence efficiency, reduce the starting voltage and prolong the service life of the device.
Inventors:
HUANG JINHUA (CN)
ZENG LICHANG (CN)
SUN LONG (CN)
LIU SONG (CN)
ZENG LICHANG (CN)
SUN LONG (CN)
LIU SONG (CN)
Application Number:
PCT/CN2021/081915
Publication Date:
November 18, 2021
Filing Date:
March 19, 2021
Export Citation:
Assignee:
BEIJING ETERNAL MAT TECH CO LTD (CN)
International Classes:
C07C211/58; C07C211/61; C07C217/84; C07D307/91; C07D333/76; C07D405/12; C09K11/06; H01L51/54
Foreign References:
| JP2011173973A | 2011-09-08 | |||
| CN110511151A | 2019-11-29 | |||
| CN110950762A | 2020-04-03 | |||
| CN109912431A | 2019-06-21 | |||
| CN109749735A | 2019-05-14 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
Download PDF: