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. 23, 2010
Filed:
Dec. 23, 2005
Applicants:
Myung-sup Jung, Seongnam-si, KR;
Byung-hee Sohn, Yongin-si, KR;
Tae-woo Lee, Seoul, KR;
Inventors:
Assignee:
Samsung Mobile Display Co., Ltd., Giheung-Gu, Yongin, Gyunggi-Do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); H05B 33/14 (2006.01); C08G 73/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An organic EL device has a layer containing a polyimide having a triphenylamine derivative (TPD) unit. The use of the polyimide as a polymer layer material can ensure solvent selectivity in coating the light-emitting layer and the organic EL device exhibits good luminance efficiency even after a prolonged period use.
Quick Actions:
Jung, Myung-Sup. (2010). Organic electroluminescent device comprising a polymer layer containing a polymide having triphenylamine derivative unit (U.S. Patent No. 7666525). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7666525
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile