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:
May. 13, 2003
Filed:
Sep. 02, 1999
Koji Kawaguchi, Kanagawa, JP;
Toshiyuki Kanno, Nagano, JP;
Fuji Electric Co., Ltd., Kawasaki, JP;
Abstract
A multi-colored organic EL device for a flat display includes a transparent substrate, a plurality of phosphor layers arranged on a surface of the substrate as a color conversion filter, a protective layer flatly coated on the phosphor layers, and an organic EL cell formed directly on the protective layer. The protective layer is formed of a coating resin having a curing temperature not to cause deterioration in the fluorescence of the phosphor layers, a glass transition temperature more than 100° C., and surface hardness more than 2H on the pencil hardness. The organic EL cell includes a light-emitting layer for emitting light when carriers are injected therein. The protective layer keeps the phosphor layers intact and can coat flatly over uneven phosphor layers. The protective layer prevents effects of post-coating processes on the phosphor layers, and allows direct formation of the organic EL cell on the protective layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile