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:
Aug. 28, 2018
Filed:
Nov. 09, 2009
Norimasa Yokoyama, Tasukuba, JP;
Shuichi Hayashi, Tsukuba, JP;
Yoshio Taniguchi, Ueda, JP;
Musubu Ichikawa, Ueda, JP;
Shinichi Matsuki, Ueda, JP;
Norimasa Yokoyama, Tasukuba, JP;
Shuichi Hayashi, Tsukuba, JP;
Yoshio Taniguchi, Ueda, JP;
Musubu Ichikawa, Ueda, JP;
Shinichi Matsuki, Ueda, JP;
Hodogaya Chemical Co., Ltd., Tokyo, JP;
Shinshu University, Matsumoto, JP;
Abstract
The invention provides a light emitting layer host compound and an electron-blocking compound that have high excited triplet levels, and can completely confine the triplet excitons of phosphorescent material, for use as the material of a high-efficient organic electroluminescent device. The invention also provides a high-efficient, high-luminance organic electroluminescent device with the use of the compounds. The compound of the general formula (1) below has a triphenylsilyl group and a triarylamine structure, and the organic electroluminescent device includes a pair of electrodes and at least one organic layer interposed between the pair of electrodes, wherein the compound of the general formula (1) having a triphenylsilyl group and a triarylamine structure is used as constituent material of the at least one organic layer.