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:
Oct. 26, 2004
Filed:
May. 23, 2001
Applicant:
Inventors:
Sung Han Kim, Seoul, KR;
Han Sung Yu, Anyang, KR;
Soon Ki Kwon, Chinju, KR;
Yun Hi Kim, Chinju, KR;
Dong Cheol Shin, Gyeongsangnam-do, KR;
Hyun Wook Lee, Gyeongsangnam-do, KR;
Hyun Cheol Jeong, Gyeongsangnam-do, KR;
Assignee:
Samsung SDI Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/900 ; B32B 9/00 ; H01J 2/982 ; H01J 1/62 ; C07F 7/21 ; C07F 7/04 ; C09K 1/106 ;
U.S. Cl.
CPC ...
B32B 1/900 ; B32B 9/00 ; H01J 2/982 ; H01J 1/62 ; C07F 7/21 ; C07F 7/04 ; C09K 1/106 ;
Abstract
A blue electroluminescence compound for an electroluminescence display device comprising a spirobifluorene or triarylsilylphenyl group and a display device using such a blue electroluminescence compound, thereby improving a light emitting efficiency and brightness of the electroluminescence display device.