The invention relates to a data processing device input apparatus (1) for inputting characters, in particular graphics characters and/or commands, by—manual actuation, in particular finger contact with input field elements (3) of an input field (4), the input field (4) being divided into two input partial fields (5, 6), the individual input partial fields (5, 6) being arranged on a base (7) so as to be set apart from each other viewed in the axial direction, and the input surfaces (24, 25) of the input partial fields (5, 6) opposing each other in the working position and a reproduction component (8) for the visual detectability of the input surfaces (24, 25) of the input field (4) being associated with said input surfaces. This may be advantageous as a result of the fact that the input partial fields (5, 6) are pivotably articulated to the base (7) so as to be set apart from each other and the reproduction component (8) is arranged on the base (7) between theoretical pivot axes (A5, A6) of the input partial fields (5, S) or is integrated in the base (7).