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:
Mar. 25, 2008
Filed:
Nov. 24, 2004
Applicants:
Sang-hoon Park, Seongnam-si, KR;
Soo-hyoung Lee, Suwon-si, KR;
Sang-yeol Kim, Seoul, KR;
Jhun-mo Son, Yongin-si, KR;
Dong-yu Kim, Gwangju-si, KR;
Inventors:
Sang-Hoon Park, Seongnam-si, KR;
Soo-Hyoung Lee, Suwon-si, KR;
Sang-Yeol Kim, Seoul, KR;
Jhun-Mo Son, Yongin-si, KR;
Dong-Yu Kim, Gwangju-si, KR;
Assignee:
Samsung SDI Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); C09K 11/06 (2006.01); C08G 59/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spirofluorene-type of a blue light-emitting polymer including an indenofluorene repeating unit having a spiroanthracene structure, and an organic electroluminescent display using the polymer. The brightness and efficiency property of the organic electroluminescent display are improved.