PROBLEM TO BE SOLVED: To operate a terminal apparatus without any feeling of physical disorder by a multi-flick operation from the side of a display unit when the same image with the terminal apparatus is displayed on the display unit through Miracast(R) connection etc.SOLUTION: A liquid crystal monitor 1 includes: a reception part 11 which receives the same image data as image data displayed on a portable terminal 2 from the portable terminal 2; a display panel 13 which displays the received image data; a touch panel 14 provided integrally with the display panel 13; a multi-flick operation determination part 16a which determines a touch operation detected by the touch panel 14 is a multi-flick operation; a flick movement quantity conversion part 16b which converts first flick movement quantities of touch coordinates of the multi-flick operation into second flick movement quantities of a single-flick operation according to predetermined adjustment quantity when it is determined that the touch operation is the