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. 31, 2006
Filed:
Sep. 11, 2001
Takeo Ito, Saitama, JP;
Tsuyoshi Oyaizu, Saitama, JP;
Akira Mikami, Saitama, JP;
Hitoshi Tabata, Saitama, JP;
Takeo Ito, Saitama, JP;
Tsuyoshi Oyaizu, Saitama, JP;
Akira Mikami, Saitama, JP;
Hitoshi Tabata, Saitama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An image display device having a vacuum envelope which has a light transmissible panel, a funnel and a neck, its inside held vacuum, a phosphor layer is formed on the inside surface of the light transmissible panel, an electron gun is disposed within the neck. An antistatic film which contains high-resistance fine particles having a specific resistivity of 10to 10Ω·cm is formed on inside wall of the neck. The image display device is free from deterioration of display characteristics caused by a change of the track of electrons emitted by the application of voltage, a spark in a tube, or a leakage current.