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. 16, 2012
Filed:
Apr. 18, 2010
Chien-hong Cheng, Hsinchu, TW;
Fang-iy Wu, Hsinchu, TW;
Yin-yen Tsai, Hsinchu, TW;
Yu-han Chen, Hsinchu, TW;
Chien-Hong Cheng, Hsinchu, TW;
Fang-Iy Wu, Hsinchu, TW;
Yin-Yen Tsai, Hsinchu, TW;
Yu-Han Chen, Hsinchu, TW;
National Tsing Hua University, Hsinchu, TW;
Abstract
Disclosed is a triphenylene based aromatic compound, wherein a benzene center is substituted with a triphenylene group and another aromatic group such as triphenylenyl, pyrenyl, phenylvinyl, carbazolylphenyl, or arylanthryl in the meta position of the benzene center. The meta-substituted aromatic compound of the invention has better thermal stability (Tg) than the conventional para-substituted aromatic compound. The meta-substituted aromatic compound, served as a hole transporting layer or a host material applied in a light emitting layer in an OLED, is more preferable than the conventional para-substituted aromatic compound.