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:
Feb. 02, 2010
Filed:
Sep. 21, 2007
Manabu Ishimoto, Kobe, JP;
Hitoshi Hirakawa, Kobe, JP;
Kenji Awamoto, Kobe, JP;
Hitoshi Yamada, Kawasaki, JP;
Akira Tokai, Kawasaki, JP;
Manabu Ishimoto, Kobe, JP;
Hitoshi Hirakawa, Kobe, JP;
Kenji Awamoto, Kobe, JP;
Hitoshi Yamada, Kawasaki, JP;
Akira Tokai, Kawasaki, JP;
Shinoda Plasma Co., Ltd., Kobe, JP;
Abstract
In accordance with an aspect of the present invention, a color display device () includes a plurality of gas discharge tubes disposed side by side. The gas discharge tubes have respective phosphor layers (R,G,B) of different materials for different colors disposed therein and containing discharge gas therein. Each of the gas discharge tubes has a plurality of light-emitting points disposed along the length thereof. The color display device further includes a plurality of display electrodes disposed on the display screen side of the gas discharge tubes, and a plurality of signal electrodes () disposed on the rear side of the gas discharge tubes. Voltage control layers (R,G,B) are disposed between the phosphor layers and the signal electrodes. The voltage control layers are made of materials which change firing voltages applied between the display electrodes and the signal electrodes. The materials of the voltage control layers are selected for the different materials of the different phosphor layers so as to minimize the difference of the firing voltages for the plurality of gas discharge tubes.