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. 27, 2003
Filed:
Dec. 19, 2000
Yoshinori Takahashi, Saitama-ken, JP;
Hisashi Chigusa, Saitama-ken, JP;
Katsuyuki Aoki, Saitama-ken, JP;
Hiroyoshi Fukasawa, Saitama-ken, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A cathode ray tube has, on an external surface of a face-panel, an anti-reflection film in which a layer mainly consisting of SiO is laminated on a transparent conductive layer that includes at least one of colored ITO and colored ATO, and a coloring matter that has a color that is a complementary color with respect to the colors of ITO and/or ATO. As the colored ITO and/or colored ATO, one that has a particle diameter of from 10 to 500 nm is employed. In addition, as the coloring matter, a dyestuff that has the maximum absorption in the wavelength range of 550 to 600 nm or the like is employed. Value of surface resistance of the anti-reflection film is preferable to be 1×10 &OHgr;/sq or less. A cathode ray tube having such an anti-reflection film can prevent effectively AEF from occurring and realize an improved contrast and comfortable body color.