Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/061939
Kind Code:
A1
Abstract:
An organic electroluminescent device and a display device. The organic electroluminescent device comprises an anode, a cathode, and a light-emitting layer provided between the anode and the cathode. A first hole injection layer and a second hole injection layer are provided between the anode and the light-emitting layer. The first hole injection layer is provided between the anode and the second hole injection layer. The structures of the first hole injection layer and the second hole injection layer are different. The structures being different comprises any one or more of the following: the thicknesses of the first hole injection layer and the second hole injection layer are different; the material structures of the first hole injection layer and the second hole injection layer are different; the number of materials and the number of material categories of the first hole injection layer and the second hole injection layer are different; the material energy levels of the first hole injection layer and the second hole injection layer are different.

More Like This:
JP4604533Coordinate accuracy confirmation method and manufacturing method of electro-optical device
JP5746037Organic electroluminescence device
JP2013526014New organic electroluminescent compounds and organic electroluminescent devices using them
Inventors:
XU MEISHAN (CN)
SUN HAIYAN (CN)
WANG DAN (CN)
LEE CHANGHO (CN)
Application Number:
PCT/CN2020/118588
Publication Date:
March 31, 2022
Filing Date:
September 28, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
H01L51/50; H01L51/54; H05B33/14; H05B33/20
Foreign References:
CN1874626A2006-12-06
CN101399317A2009-04-01
CN101488561A2009-07-22
CN104882545A2015-09-02
CN102273320A2011-12-07
CN1832647A2006-09-13
CN1988203A2007-06-27
CN102214794A2011-10-12
CN102315391A2012-01-11
CN103700776A2014-04-02
CN203288658U2013-11-13
CN105679945A2016-06-15
US20180105740A12018-04-19
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: ORGANIC LIGHT-EMITTING DEVICE AND DISPLAY APPARATUS

Next Patent: MODEL DATA TRANSMISSION METHOD, AND COMMUNICATION APPARATUS