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:
Apr. 15, 2008
Filed:
Aug. 25, 2005
Toshimitsu Watanabe, Yokohama, JP;
Go Uchida, Mobara, JP;
Masaki Nishikawa, Chiba, JP;
Tetsu Ohishi, Hiratsuka, JP;
Toshimitsu Watanabe, Yokohama, JP;
Go Uchida, Mobara, JP;
Masaki Nishikawa, Chiba, JP;
Tetsu Ohishi, Hiratsuka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In an FED (Field Emission Display), lowering of a color temperature is suppressed which is caused by that light emission luminance of respective color phosphors is different from each other so as to achieve a better white balance. A display apparatus is equipped with a cathode substrate containing a plurality of electron emitter elements, and an anode substrate. The anode substrate is arranged opposite to the cathode substrate, and contains three colors of red, green, blue phosphors which are excited by electrons emitted from the electron emitter elements so as to emit light. Then, an area of either the red phosphor or an area of the blue phosphor is made smaller than an area of the green phosphor.