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. 14, 2006
Filed:
Mar. 14, 2002
Kong Kyeom Kim, Taejeon, KR;
Sehwan Son, Taejeon, KR;
Seokhee Yoon, Taejeon, KR;
Jae Soon Bae, Taejeon, KR;
Youn-gu Lee, Seoul, KR;
Sung Gap Im, Taejeon, KR;
Jieun Kim, Taejeon, KR;
Jae Chol Lee, Taejeon, KR;
Kong Kyeom Kim, Taejeon, KR;
Sehwan Son, Taejeon, KR;
Seokhee Yoon, Taejeon, KR;
Jae soon Bae, Taejeon, KR;
Youn-Gu Lee, Seoul, KR;
Sung Gap Im, Taejeon, KR;
Jieun Kim, Taejeon, KR;
Jae Chol Lee, Taejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Disclosed are double-spiro organic compounds and an organic electroluminescence (EL) device using the same. The double-spiro organic compounds are configured to have at least three planar and substantially linear moieties, such that one planar moiety is located between two neighboring planar moieties and that the intervening planar moiety shares an atom with each of the two neighboring planar moieties. The double-spiro compounds generally have high melting point above about 300 degree C. and low crystallinity, which provide thermal stability to the organic EL devices. These organic compounds have good sublimability. They also have light-emitting, hole-injecting, hole-transporting, electron injection, electron-transporting properties and characteristics, which are favorable in the organic EL devices.