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:
Jul. 12, 2011
Filed:
Jun. 03, 2008
Applicants:
Mutsumi Suzuki, Kodaira, JP;
Toshiaki Kusunoki, Tokorozawa, JP;
Inventors:
Mutsumi Suzuki, Kodaira, JP;
Toshiaki Kusunoki, Tokorozawa, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01); H01J 63/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Degradation of an electron emission element by irradiation of the positive ion generated inside a panel is suppressed. A deflection electrode is periodically disposed, and the electron emission region of an electron emission element is disposed so as not to include a center line between adjacent deflection electrodes, so that an electron beam trajectory is deflected and bombardment or irradiation of the generated positive ion to the electron emission region is prevented.