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:
Aug. 06, 1996
Filed:
Jul. 12, 1994
Yoshinari Okamoto, Mobara, JP;
Yoshihisa Tsuruoka, Mobara, JP;
Haruhisa Hirakawa, Mobara, JP;
Eiji Sato, Mobara, JP;
Futaba Denshi Kogyo K.K., Mobara, JP;
Abstract
A fluorescent display device of the front emission type capable of permitting light-permeable anode conductors to be uniformly formed without any deformation and preventing color filters from being affected by etching carried out for forming the anode conductors. A light-permeable anode substrate is provided thereon with strip-like filters, which are then formed thereon with a uniform and flat protective film of light-permeable, insulating and etching-resistant properties. Then, anode conductors are arranged on the protective film. Thus, the anode conductors can be uniformly formed on the flat protective film irrespective of unevenness on a surface of the filters. Also, the protective film prevents the anode conductors from being exposed to etching liquid used for formation of the anode conductors.