| 摘要 |
PROBLEM TO BE SOLVED: To display an operation screen located in a lower layer, with a desired size, without securing a display area in advance.SOLUTION: An operation screen display device is configured: to display an operation screen of a hierarchical structure on a display surface 121a; and to display a lower-level window W where at least a part of an operation screen of a lower layer associated with a pinched-out operation key is displayed, with a designated size, on the basis of the size designated by user pinch-out operation on one operation key k of a plurality of operation keys l in the operation screen, on the display surface 121a.SELECTED DRAWING: Figure 8 |
