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. 09, 2002
Filed:
Oct. 09, 1998
Yoshio Kishimoto, Hirakata, JP;
Ritsuo Inaba, Neyagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An electroluminescent device includes a transparent substrate, a transparent anode, a thin film electrode and a light emitting organic polymer layer. Both of the surface of the transparent substrate and the surface of the transparent anode are imparted hydrophobicity so that an excellent electroluminescent device which hardly causes change in luminance with a lapse of time and has few dark spots can be obtained. Also a new polymer film is used as the transparent substrate so that a thin and flexible electroluminescent device, which hardly causes change in luminance with a lapse of time and has few dark spots, can be obtained. Also a new construction color electroluminescent display panel is described, which can be made flexible and reduced in thickness, long life, superior in resolution and easily produced.