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:
Jan. 21, 1992
Filed:
Jun. 18, 1990
Kinzo Nonomura, Ikoma, JP;
Satoshi Kitao, Kyoto, JP;
Ryuichi Murai, Katano, JP;
Jumpei Hashiguchi, Neyagawa, JP;
Kiyoshi Hamada, Sakai, JP;
Masayuki Takahashi, Katano, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A flat panel display device includes a face plate made of a transparent material, a back plate positioned parallel to the face plate, and a wall member extending between the face plate and back plate to define an airtight housing. An anode is provided on a inner surface of the face plate, a fluorescent layer is provided in association with the anode, and a cathode is provided in association with an inner surface of the back plate. A plurality of struts, made of an electrically conductive screen printed powdery material, are tightly held between the back plate and the face plate, such that an electric charge accumulated between the anode and cathode is discharged by a leakage current flowing through the struts.