| 摘要 |
PROBLEM TO BE SOLVED: To perform touch operation for enlarging/reducing a screen with one finger, intuitively and simply.SOLUTION: A display device 1 includes a movement locus detecting part 51, an operation determination part 52, and a display control part 53. The movement locus detection part 51 detects a touch operation on a display screen. The operation determination part 52 determines whether or not the touch operation that has been detected with the movement locus detection part 51 contains an edge trace operation in which a touch position moves in a predetermined region of the display screen. The display control part 53, in a case where the operation determination part 52 determines that the edge trace operation in which a touch position moves in a predetermined region is contained, controls for enlarging display or reducing display of the display screen according to the direction of movement in the predetermined region. |
