Patent ID: 7911430

Claim:
A liquid crystal display displaying, using a liquid crystal display panel, an image responsive to input image data, comprising: a driving device that drives the liquid crystal display panel in either an impulse drive mode or a hold drive mode, (i) the impulse drive mode having an image display period for performing display of the input image data and a monochrome display period for performing display of certain previously-specified monochrome display data, each of the display periods being performed within an input image data rewriting period, the input image data and the monochrome display data written sequentially in each of scan lines of the liquid crystal display panel and written in each pixel of the liquid crystal display panel, (ii) the hold drive mode performing display of the input image data for the entire rewriting period, without setting the monochrome display period, the image data written sequentially in each of scan lines of the liquid crystal display panel and written in each pixel of the liquid crystal display panel; a switching device that switches between the modes for driving the liquid crystal display panel by the driving means; and a voltage varying device that varies, in accordance with the input image data and according to one of the modes for driving the liquid crystal display panel, a gradation voltage applied to the liquid crystal display panel and corresponding to the image data, so as to prevent changes in gamma characteristics due to differences in response speed of liquid crystal between display gradations, which differences are caused by insertion of the monochrome display data.