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:
Jan. 22, 2013
Filed:
Jul. 04, 2006
Nobuyoshi Nagashima, Matsuzaka, JP;
Nobuyoshi Nagashima, Matsuzaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
It is possible to implement impulse display in a hold type display device while suppressing an increase in complexity of a drive circuit and an increase in operation frequency. In an active matrix type liquid crystal display device of a dot-inversion drive scheme which is configured such that adjacent source lines are short-circuited during a predetermined period Tsh every horizontal scanning period, a gate driver applies a pulse for turning on a TFT in a pixel forming section, as a scanning signal G(j) (j=1 to m) to be provided to each scanning signal line as follows. In each, frame period, a pixel data write pulse Pw is sequentially applied to gate lines GLto GLm and a black voltage application pulse Pb is applied during the above-described predetermined period Tsh which is after the lapse of a period (Thd) of the order of a ⅔ frame from the application of the pixel data write pulse Pw to each gate line GLj. The present invention is suitable for use in an active matrix type liquid crystal display device.