Patent ID: 9530384
Filing Date: 2016-12-27
CPC Classification: G09G

Claim Text:
1. An active matrix type of display device including a plurality of pixels that form an image to be displayed and include a pixel electrode and a common electrode provided in a manner corresponding to the pixel electrode to apply a voltage between the pixel electrode and the common electrode, a plurality of video signal lines for communicating a plurality of video signals indicating the image to be displayed to the plurality of pixels, and a plurality of scanning signal lines crossing the video signal lines, the plurality of pixels associated with the video signal lines and the scanning signal lines and disposed in a matrix, the display device comprising: a scanning signal line drive circuit that selectively drives the scanning signal lines; a video signal line drive circuit that transmits the video signals to be communicated to the video signal lines; a common electrode drive circuit that sets a voltage to be applied to the common electrode; and a display control circuit that controls the scanning signal line drive circuit, the video signal line drive circuit, and the common electrode drive circuit by transmitting a predetermined control signal thereto, wherein the display control circuit controls the video signal line drive circuit and the common electrode drive circuit such that a polarity of a voltage applied to the pixel electrode based on a potential of the common electrode as a reference is inverted for each predetermined period and a differential value between a potential difference between the pixel electrode and the common electrode when a voltage of positive polarity is applied and the potential difference between the pixel electrode and the common electrode when a voltage of negative polarity is applied is set larger when the image to be displayed is rewritten in a frame period having a second length longer than a first length than when the image to be displayed is rewritten in a frame period having the first length.