Title:
有機エレクトロルミネッセンス素子及びその製造方法
Document Type and Number:
Japanese Patent JP4446697
Kind Code:
B2
Abstract:
The present invention provides an organic electroluminescent element comprising a light emitting layer having a good charge transfer characteristic, capable of easily injecting the charge into the light emitting layer, and a method for producing an organic electroluminescent element with a stable quality. The object can be solved by an organic EL element provided with a substrate plate having a first electrode, a substrate plate having a second electrode, and a light emitting layer comprising a liquid crystalline organic semiconductor material and a light emitting material and disposed between the substrate plates, wherein an organic thin layer having a dipole moment for reducing a charge injection barrier between the electrodes and the light emitting layer is formed between the first electrode and the light emitting layer and/or between the second electrode and the light emitting layer. The organic EL element is produced by forming an organic thin layer having a dipole moment on a substrate plate having a first electrode and/or a substrate plate having a second electrode, disposing the substrate plates so as to face the electrodes each other while forming a gap portion, and injecting a liquid crystalline organic material for a light emitting layer to the gap portion between the electrodes to form a light emitting layer.
Inventors:
Junichi Hanna
Akihiko Nakasa
Hiromi Maeda
Akihiko Nakasa
Hiromi Maeda
Application Number:
JP2003202878A
Publication Date:
April 07, 2010
Filing Date:
July 29, 2003
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
H01L51/50; C09K11/06; C09K19/20; C09K19/28; C09K19/32; C09K19/34; G02F1/1335; H01L51/00; H05B33/10; H05B33/12; H05B33/14; H05B33/22
Domestic Patent References:
| JP2003163087A | ||||
| JP2002270369A | ||||
| JP2001512145A | ||||
| JP2000173770A |
Attorney, Agent or Firm:
Shunichi Yoshimura