The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2001
Filed:
Jul. 02, 1998
Applicant:
Inventors:
Kenji Nakaya, Ibaraki, JP;
Yasunaga Kagaya, Chiba, JP;
Mitsufumi Codama, Ibaraki, JP;
Osamu Onitsuka, Chiba, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 6/304 ;
U.S. Cl.
CPC ...
H01J 6/304 ;
Abstract
An organic EL device includes a substrate (,), a hole infecting electrode (,), an electron injecting electrode (,), and organic layers (,) disposed between the electrodes. The hole injecting electrode (,) is an ITO electrode having (111) orientation. Due to improved film formation, close contact and physical properties at the interface between the hole injecting electrode and the organic layer, the device has a long lifetime, high luminance, high efficacy, and quality display and prevents the occurrence of current leakage and dark spots.