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:
Jul. 02, 2013
Filed:
Jan. 06, 2011
Chien-hong Cheng, Hsinchu, TW;
Cheng-an Wu, Hsinchu, TW;
Fang-iy Wu, Hsinchu, TW;
Cheng-hung Shih, Hsinchu, TW;
Chien-Hong Cheng, Hsinchu, TW;
Cheng-An Wu, Hsinchu, TW;
Fang-Iy Wu, Hsinchu, TW;
Cheng-Hung Shih, Hsinchu, TW;
National Tsing Hua University, Hsinchu, TW;
Abstract
An m-terphenyl derivative has a structure of formula (I) or (II): wherein A and B are five-membered heterocyclic compounds selected from the group consisting of pyrrole, pyrazole, imidazole, 1,2,3-triazole, 1,2,4-triazole, 1,2,3,4-tetrazole, 1,2-thiazole, 1,3-thiazole and 1,3,4-thiadiazole, each of substituents R, Rand Ris a member independently selected from the group consisting of H, halo, cyano, trifluoromethyl, amino, C-Calkyl, C-Calkenyl, C-Calkynyl, C-Ccycloalkyl, C-Ccycloalkenyl, C-Cheterocycloalkyl, C-Cheterocycloalkenyl, aryl and heteroaryl. The compound of the present invention may have advantages in good electron affinity, low HOMO and thereby achieving hole blocking and may be used for electron transport material and/or electron injection material.