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. 15, 2008
Filed:
May. 11, 2007
Yuji Kasanuki, Isehara, JP;
Shoshiro Saruta, Sagamihara, JP;
Daisuke Sasaguri, Yokohama, JP;
Ryoji Fujiwara, Chigasaki, JP;
Yuji Kasanuki, Isehara, JP;
Shoshiro Saruta, Sagamihara, JP;
Daisuke Sasaguri, Yokohama, JP;
Ryoji Fujiwara, Chigasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A flat panel image display device includes a rear plate including plural electron emission elements, a face plate disposed opposed to the rear plate, fluorescent members being disposed on a surface of the face plate opposed to the rear plate, and the fluorescent members being covered with a metal back film, and a voltage applying unit to apply an acceleration voltage of 8 kV to 15 kV between the rear plate and the face plate. In addition, the metal back film has a getter material, and a current luminance characteristic of the fluorescent member satisfies γ≧0.9 if L=klγ , wherein L is luminance, l is an irradiation current, and k is a constant.