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. 29, 2001
Filed:
Apr. 26, 1999
Hiroshi Aono, Osaka, JP;
Tomohiro Sekiguchi, Hyogo, JP;
Matsushita Electronics Corporation, Osaka, JP;
Abstract
In a flat-type image display apparatus, thermal distortion caused by the exposure to high temperature is absorbed, thus obtaining assembly precision and maintaining it during operation. The apparatus comprises a flat type screen and a back electrode opposing the flat type screen. In the space between the flat type screen and the back electrode, linear cathodes and an electrode unit including an electron beam extracting electrode are arranged. Positioning members formed of heat-resistant insulators having guide portions for supporting the linear electrodes are attached to the electrode unit. The linear cathodes are positioned by the guide portions to keep a predetermined positional relationship with electron-beam extracting holes formed in the electron beam extracting electrode.