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:
Apr. 07, 2015
Filed:
Sep. 27, 2010
Chien-hong Cheng, Hsinchu, TW;
Chun-hsiang Fan, Hsinchu, TW;
Chien-Hong Cheng, Hsinchu, TW;
Chun-Hsiang Fan, Hsinchu, TW;
National Tsing Hua University, Hsinchu, TW;
Abstract
A 6H-indolo[2,3-b]quinoxaline derivative has a structure of formula (I). Ris a member selected from the group consisted of an aryl group having one or more substituents and a heteroaryl group having one or more substituents, and Rto Rare substituents. The 6H-indolo[2,3-b]quinoxaline derivative of the present invention incorporates an indole and a quinoxaline group therefore inherits good energy transfer ability from indole and good electron-injection ability from quinoxaline. The compound of the present invention may function as a host material or a dopant in the light-emitting layer. In addition, the compound of the present invention may function as hole transport material, electron transport material, hole blocking material, electron blocking material, hole injecting material or electron injecting material.