Patent ID: 7609245
Filing Date: 2009-10-27
Classification: G09G

Abstract:
1. A liquid crystal device that operates in a first operation mode and a second operation mode, comprising: a plurality of scanning lines; a plurality of data lines; a plurality of pixel circuits that are provided at positions corresponding to intersections of the scanning line and the data lines, wherein each of the plurality of pixel circuits includes a liquid crystal element that has a first electrode, a second electrode, and a liquid crystal held between the first electrode and the second electrode, wherein a first alignment, which is an initial state, and a second alignment for display are provided for the liquid crystal as an alignment state; a scanning line driving device that selects the plurality of scanning lines in a predetermined order; and a data line driving device that supplies each of the pixel circuits corresponding to the selected one of scanning lines with a writing voltage through the corresponding data line, wherein in the first operation mode, in one frame that includes a first period and a second period, the data line driving device outputs a gray-scale voltage corresponding to a gray-scale to be displayed as the writing voltage in the first period and outputs a first voltage, which is used for maintaining the second alignment, as the writing voltage to the data line in the second period, wherein in the second operation mode, the data line driving device outputs a second voltage, which is used for maintaining the second alignment, as the writing voltage in all the period of the one frame, and wherein the second voltage is higher than the first voltage.