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. 13, 2007
Filed:
Apr. 06, 2005
Tomoyuki Tachikawa, Shinjuku-Ku, JP;
Norihito Itoh, Shinjuku-Ku, JP;
Tomoyuki Tachikawa, Shinjuku-Ku, JP;
Norihito Itoh, Shinjuku-Ku, JP;
Dai Nippon Printing Co., Ltd., Shinjuku-Ku, JP;
Abstract
Disclosed are a light emitting element that, in the formation of a plurality of luminescent layers, can effectively suppress color mixing in each luminescent layer and loss in dissolution of the luminescent layer per se, and a process for producing the same. The light emitting element comprising a plurality of luminescent layers formed by photolithography is produced by a process which comprises: forming a first electrode on a surface of a base material; forming a first luminescent layer on the first electrode; conducting treatment for rendering the first luminescent layer in its exposed area insoluble in a coating liquid for second luminescent layer formation; forming the second luminescent layer on the first electrode; repeating the steps a plurality of times to form a plurality of luminescent layers on the first electrode; and forming a second electrode on the plurality of luminescent layers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile