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:
Aug. 29, 2006
Filed:
Oct. 17, 2002
Katsuyuki Arimoto, Okayama, JP;
Yoshihito Ohta, Okayama, JP;
Takahiro Kobayashi, Okayama, JP;
Tsugio Murao, Habikino, JP;
Katsuyuki Arimoto, Okayama, JP;
Yoshihito Ohta, Okayama, JP;
Takahiro Kobayashi, Okayama, JP;
Tsugio Murao, Habikino, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A frequency converting section (), which is included in a liquid crystal display apparatus, generates an output video signal by inserting one non-image signal, which is to be concurrently written into pixels on L (L is an integer equal to or greater than two) gate lines of the liquid crystal panel, for one line, between image signals composing an input video signal, for corresponding L lines, and adjusting a number of horizontal scanning periods of the output video signal in a vertical blanking period so that a number of horizontal scanning periods composing one frame period is (L+1)×(2N+1) (N is an integer). Thus, when anti-back-transition driving is performed using a liquid crystal panel in OCB mode, it is possible to minimize increase in a driving frequency, prevent irregularity of brightness caused by AC driving of the liquid crystal panel, and reduce a cost.