1. A character input device comprising: a display unit for displaying a screen having a character entry area and a virtual keyboard, the virtual keyboard including a plurality of keys each of which corresponds to a character; an input detecting unit for detecting a touch input by an operator; and a control unit configured to detect a key selection operation and an input determination operation through the input detecting unit, display, upon detecting the key selection operation for the first key, the first character corresponding to the first key in the character entry area as a character to be input, and display, upon detecting the input determination operation, the first character in the character entry area as an input character.