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|1. (WO2017154657) LIQUID CRYSTAL DISPLAY DEVICE WITH BUILT-IN TOUCH SENSOR, AND DRIVE METHOD FOR THE DEVICE|
|Applicants:||SHARP KABUSHIKI KAISHA
|Title:||LIQUID CRYSTAL DISPLAY DEVICE WITH BUILT-IN TOUCH SENSOR, AND DRIVE METHOD FOR THE DEVICE|
The purpose of the present invention is to suppress the occurrence of flicker when a switch is made from an idle period to a display period in a liquid crystal display device with built-in touch sensor that uses a common electrode as an electrode for touch detection. A display drive unit performs an image data write process that applies voltage to a pixel electrode while the backlight kept in an unlighted state by a backlight control unit in at least a portion of the idle period. For example, the display drive unit applies a voltage corresponding to a specific image or a black image to the pixel electrode for every prescribed period through the idle period. Also, for example, the display drive unit applies voltage corresponding to the display image to the pixel electrode in the period of the idle period that occurs immediately prior to a switch to the display period.