Liquid crystal display apparatus and drive method thereof
CA 2443671 A1 · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Kobayashi, Takahiro; Ohta, Yoshihito; Arimoto, Katsuyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A frequency converting block (101) provided to a liquid crystal display inserts a non-image signal simultaneously written in the pixels along L gate lines of a liquid crystal panel between the image signals constituting the input video signal at a rate of one line for the image signal of L lines (L is an integer of 2 or more) so as to generate an output video signal and adjusts the number of horizontal scanning periods contained in the vertical blanking period of the output video signal so that the number of horizontal scanning periods constituting one frame period may be (L+1)×(2N+1) (N is an integer). When reverse transition prevention drive is carried out by using a liquid …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 17, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2024.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.