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:
Dec. 19, 2006
Filed:
Apr. 14, 2004
Yasuyuki Kudo, Kamakura, JP;
Atsuhiro Higa, Yokohama, JP;
Yoshikazu Yokota, Kodaira, JP;
Hiroshi Kurihara, Mobara, JP;
Kazunari Kurokawa, Mobara, JP;
Yasuyuki Kudo, Kamakura, JP;
Atsuhiro Higa, Yokohama, JP;
Yoshikazu Yokota, Kodaira, JP;
Hiroshi Kurihara, Mobara, JP;
Kazunari Kurokawa, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A display device or a display driving device includes a display memory for storing display data; a histogram memory for storing frequencies of gray-scale voltages every line; a gray-scale voltage generation circuit for generating a plurality of gray-scale voltages on the basis of reference voltages, a current quantity of a circuit for generating each of the plurality of gray-scale voltages being changed according to a frequency of the gray-scale voltage; and a voltage selector section for selecting a gray-scale voltage to be applied to each of the plurality of pixel sections, from the plurality of gray-scale voltages.