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:
Jun. 08, 2004
Filed:
Nov. 05, 2001
Applicant:
Inventors:
Satoru Toguchi, Tokyo, JP;
Hitoshi Ishikawa, Tokyo, JP;
Hiroshi Tada, Tokyo, JP;
Atsushi Oda, Tokyo, JP;
Assignee:
Samsung Electronics Co., Ltd., Suwon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 1/900 ; B32B 9/00 ; H01J 1/62 ; H01J 6/304 ; C09K 1/106 ;
U.S. Cl.
CPC ...
B32B 1/900 ; B32B 9/00 ; H01J 1/62 ; H01J 6/304 ; C09K 1/106 ;
Abstract
An organic electroluminescent device comprising one or more organic thin film layers, at least one of the organic thin film layers containing a compound having a cyclohexylidenemethine group. This device has improved light-emitting properties such as luminance and luminous efficiencies, and no limitations on film deposition method in fabrication processes.