Patent ID: 8339423

Claim:
A display apparatus comprising: scanning signal lines; data signal lines intersecting with the respective scanning signal lines; and pixels provided at respective intersections of the scanning signal lines and the data signal lines, the display apparatus time-dividing one frame of an input image signal into first to n-th sub frames (n is an integer not less than 2) so as to display an image on the pixels, the display apparatus further comprising: signal generation means for generating display signals of the first to n-th sub frames from the input image signal; data signal line drive means for generating grayscale display voltages corresponding to the display signals of the first to n-th sub frames in such a manner that, in each sub frame, grayscale display voltages output to pixels which are neighbored in a direction along the scanning signal lines and to pixels which are neighbored in a direction along the data signal lines are arranged to have inverse polarities and the polarity of a grayscale display voltage which is output to each of the pixels is reversed in each sub frame, in each group of sub frames, or in each frame, and outputting the generated grayscale display voltages to the respective data signal lines; short-circuit means for switching the state of neighboring data signal lines between conduction and cutoff; and timing control means for generating a control signal which causes the pixels to perform image display using the display signals of the first to n-th sub frames, the timing control means causing an image display period of a first sub frame of an N-th frame (N is an integer not less than 2) to partly overlap at least an image display period of a second sub frame of the N-th frame and an image display period of an n-th sub frame of an (N−1)-th frame, so that a period during which the grayscale display voltages are written into all of the pixels in each sub frame is arranged to be equal to an image signal input period of one frame of the input image signal, and the timing control means generating the control signal in such a manner that, when the polarity of a grayscale display voltage which is output from the data signal line drive means to each of the data signal lines is reversed, a grayscale display voltage after polarity inversion is output to each of the data signal lines, after the short-circuit means is kept at the conduction state for a predetermined period of time.