A display system includes a liquid crystal display apparatus and an operating device. The operating device can point a desired position on a display screen of the display apparatus and capture an image of the display apparatus to obtain the captured image including the desired position pointed by the operating device. The display system includes an image analyzing section for analyzing the captured image obtained by the capture to find reference light areas in the display apparatus and to detect the desired position on the display screen based on positions of the reference light areas in the captured image. The display apparatus also includes a blinking controlling section which controls blinking conditions of all the backlight units in the display apparatus to differ a blinking conditionof two or more reference light area backlight units from that of the other backlight units. This allows properly detecting the desired position on the display screen pointed by the operating device.