Patent ID: 10902808

Abstract:
A touch panel display 10a includes a liquid crystal panel 32, a liquid crystal display timing controller (LCD-TCON) 34 that outputs a gate clock signal GCK 1a in a display period during which an image corresponding to an image signal D1 is displayed on the liquid crystal panel 32, a complex programmable logic device (CPLD) 54 that generates a gate clock signal GCK 2 which has the same cycle as the cycle of a gate clock signal GCK 1a, in a non-display period during which the image is not displayed on the liquid panel 32, and a touch panel control board 70 that drives a touch panel 36 in the display period on the basis of the gate clock signal GCK 1a output from the LCD-TCON 34 and that drives the touch panel 36 in the non-display period on the basis of the gate clock signal GCK 2 output from the LCD-TCON 34.