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:
Jun. 04, 2013
Filed:
Feb. 26, 2010
Hiroshi Kojima, Shiga, JP;
Munehiko Ogawa, Kyoto, JP;
Yasuhiro Hirokane, Osaka, JP;
Kazuyoshi Nishi, Kyoto, JP;
Hiroshi Kojima, Shiga, JP;
Munehiko Ogawa, Kyoto, JP;
Yasuhiro Hirokane, Osaka, JP;
Kazuyoshi Nishi, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A display driving device is provided which drives a display panel having source lines provided for columns of pixels and which includes: first switches swprovided for the source lines; second switches swprovided for the source lines; AMP unitswhich are provided for the source lines and drive a pixel signal to the source lines via the second switches; an external power sourceapplying an intermediate voltage of the pixel signal to an intermediate voltage line, the intermediate voltage having a level between a minimum voltage level and a maximum voltage level of the pixel signal; and a control circuitcontrolling turning on and off the first switches and the second switches, wherein the control unit temporarily turns off at least part of the second switches, and concurrently, temporarily turns on corresponding ones of the first switches during a transition period of the pixel signal.