Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
有機EL表示装置及びその製造方法
Document Type and Number:
Japanese Patent JP5105739
Kind Code:
B2
Abstract:

To provide an organic EL display device and its manufacturing method in which brightness of the organic EL element is intensified and its life is extended.

The organic EL display device comprises a substrate SUB and an organic EL element OLED arranged on it. The organic EL element OLED comprises an anode AND, a cathode CTD, a light emitting layer EMT of organic substance which is interposed between the anode AND and the cathode CTD, and a positive hole transportation layer HTL of organic substance which is interposed between the light emitting layer EMT and the anode AND. The positive hole transportation layer HTL comprises a first organic substance layer HTL1, and a second organic substance layer HTL2 which has a positive hole mobility different from the first organic substance layer HTL1 and is interposed between the first organic substance layer HTL1 and the light emitting layer EMT.

COPYRIGHT: (C)2007,JPO&INPIT


Inventors:
Hiroshi Kubota
Norihisa Maeda
Masuyuki Ota
Kenji Mitsui
Application Number:
JP2005340219A
Publication Date:
December 26, 2012
Filing Date:
November 25, 2005
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Japan Display Central Co., Ltd.
International Classes:
H01L51/50; G09F9/30; H01L27/32; H05B33/10
Domestic Patent References:
JP8222373A
JP2005294187A
Attorney, Agent or Firm:
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto