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:
Jan. 11, 2011
Filed:
Aug. 31, 2006
Tetsuzo Miki, Minato-ku, JP;
Norimasa Yokoyama, Tsukuba, JP;
Yoshio Taniguchi, Ueda, JP;
Musubu Ichikawa, Ueda, JP;
Tetsuzo Miki, Minato-ku, JP;
Norimasa Yokoyama, Tsukuba, JP;
Yoshio Taniguchi, Ueda, JP;
Musubu Ichikawa, Ueda, JP;
Hodogaya Chemical Co., Ltd, Tokyo, JP;
Shinshu University, Matsumoto-shi, JP;
Abstract
Objects of the invention are to provide a compound of a single molecular species having excellent hole injection/transport property suitable for highly efficient and highly durable organic EL device and excellent amorphousness, and provide a highly efficient and highly durable organic EL device using the compound. This invention relates to an arylamine compound having a molecular weight of 1,500 to 6,000 represented by the following general formula (1), and to an organic electroluminescence device having a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the compound is used as a constituting material of the at least one organic layer: wherein X represents a single bond, CH or CH, or N or NH; Arand Arare respectively the same and each represents a substituted or unsubstituted phenylene group, biphenylene group, or terphenylene group; R, R, R, and Reach independently represents an aryl group, wherein the aryl group may be substituted by a diarylamine group in such a manner as to form a triphenylamine partial structure, and the aryl group at the terminal may be substituted, by repetition, by a diarylamino group in such a manner as to form a triphenylamine-like partial structure; m represents an integer of 0 to 2; and n represents 0 or 1.