Cumbersomeness that is caused when a protective sheet is attached over a touch panel is alleviated. A touch panel apparatus (10) according to an example embodiment includes a roughly rectangular touch panel (13), a transparent protective sheet (12) having a shape roughly identical to that of the touch panel (13) and detachably disposed so as to cover a front surface of the touch panel (13), a lower-side holding part (11a) that holds the protective sheet (12), disposed on a lower side of the touch panel (13), and a left-side holding part (11b) and a right-side holding part (11c) that hold the protective sheet (12), disposed on two lateral sides, respectively, of the touch panel (13), the two lateral sides being adjacent to the lower side of the touch panel (13).