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:
Sep. 18, 2012
Filed:
Jun. 29, 2007
Akihiro Takagi, Kawaguchi, JP;
Tetsuya Sakamoto, Yokohama, JP;
Takayuki Kobayashi, Tokyo, JP;
Takashi Sasaki, Hiratsuka, JP;
Akira Otsuka, Zama, JP;
Akihiro Takagi, Kawaguchi, JP;
Tetsuya Sakamoto, Yokohama, JP;
Takayuki Kobayashi, Tokyo, JP;
Takashi Sasaki, Hiratsuka, JP;
Akira Otsuka, Zama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a PDP device, a technique capable of more efficiently performing address energy control according to contents of a display image (display data) to reduce the address energy. In the PDP device, as an address energy recovery circuit, a plurality of address energy control circuits (Bto Bn) are provided corresponding to a plurality (n) of regions (Hto Hn) into which a screen area (R) and a group of address electrodes are divided in a horizontal direction. For each of the regions (H) of which the address energy recovery circuits (B) are respectively in charge and for each of subfields, an address pulse switching load (Q) corresponding to that region (H) is determined, and then, according to the magnitude of the load (Q), the operation of the address energy recovery circuit (B) is ON/OFF-controlled.