Patent ID: 6937224

Claim:
A liquid crystal display device having: a display panel in which are formed at least a plurality of column lines arranged in parallel to one another, a plurality of row lines arranged in parallel to one another in a direction in which the row lines intersect the column lines, and pixels provided corresponding to intersecting points of the column lines and the row lines; a column line driver for supplying a data signal to the column lines; and a row line driver for supplying a select signal to the row lines, wherein the liquid crystal display device comprises: a display control section for supplying an image signal and a control signal to the column line driver, while supplying a control signal to the row driver, thereby controlling image display operation to the display panel; black display signal generating means for generating a black display signal for displaying a black image at the pixels; and a selector switch provided in the column line driver for switchedly selecting alternately between a data signal based on an image signal derived from the display control section and a black display signal derived from the black display signal generating means, wherein the display control section selectively outputs a control signal for a first display mode or a control signal for a second display mode, such that in the first display mode, the control signal for making the row lines sequentially selected is supplied to the row line driver, where the select signal is supplied to the nth (n: a positive integer) row line while the data signal is selected by the selector switch, and where the select signal is supplied to at least one of the row lines other than the nth row line while the black display signal is selected by the selector switch, and such that in the second display mode, only the data signal is selected by the selector switch and a black display signal supply operation is not performed.