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:
Nov. 21, 2017
Filed:
Oct. 10, 2013
Toray Industries, Inc., Tokyo, JP;
Shinichi Matsuki, Otsu, JP;
Daisaku Tanaka, Otsu, JP;
Takeshi Ikeda, Otsu, JP;
Atsushi Ikeda, Otsu, JP;
TORAY INDUSTRIES, INC., Tokyo, JP;
Abstract
The present invention provides an organic thin film light emitting device having high luminous efficiency and durable life realized by using a benzindolocarbazole derivative as represented by either general formula (1-1) or (1-2) given below: [Chemical compound 1] wherein Rto Rmay be identical to or different from each other and are selected from the group consisting of a hydrogen atom, alkyl group, cycloalkyl group, heterocyclic group, amino group, alkenyl group, cycloalkenyl group, alkynyl group, alkoxy group, alkylthio group, aryl ether group, aryl thioether group, aryl group, heteroaryl group, halogen atom, carbonyl group, carboxyl group, oxycarbonyl group, carbamoyl group, silyl group, and —P(═O)RR; Rand Rrepresent either an aryl group or a heteroaryl group; Rand Rmay be condensed to form a ring; Lto Lindependently represent a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group; and Ato Aindependently represent an amino group, aryl group, heterocyclic group, or heteroaryl group.