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. 24, 1998
Filed:
Feb. 24, 1997
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
313506 ; 313509 ; 313512 ; 313113 ;
Abstract
On an upper surface of an insulating transparent film, a transparent electrode layer, a phosphor layer, a dielectric layer, a back-surface electrode, collecting electrode layers, and an insulating coat layer are successively accumulated in predetermined patterns by repeating screen printing operations. Meanwhile, a light-permeable reflection layer containing pearly pigment is formed on a lower surface of the insulating transparent film in a predetermined pattern by a printing operation. With this arrangement, it becomes possible to eliminate the color difference of the light-emitting surface of the EL lighting element between its turned-on and turned-off conditions.