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:
Nov. 04, 2014
Filed:
Oct. 05, 2009
Masae Kawabata, Osaka, JP;
Fumikazu Shimoshikiryoh, Osaka, JP;
Toshikazu Tsuchiya, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
At least one embodiment of a liquid crystal display device including: scanning signal lines provided in a display area; and a dummy scanning signal line provided in a non-display area, the scanning signal lines being divided into groups each of which includes a plurality of scanning signal lines, the groups being sequentially selected, signal electric potentials of an identical polarity being sequentially supplied to a data signal line while scanning signal lines belonging to a selected group are sequentially scanned horizontally, the polarity of the signal electric potentials being inverted when the selected group is changed from a preceding group to a succeeding group which is selected immediately after the preceding group, a dummy scanning period being inserted between a horizontal scanning period corresponding to last horizontal scanning in the preceding group and a horizontal scanning period corresponding to first horizontal scanning in the succeeding group, and the dummy scanning signal line being subjected to dummy scanning during the dummy scanning period. With the arrangement, it is possible to suppress horizontal-shaped unevenness that occurs in a case where block inversion driving is carried out.