Mobile terminal apparatus and method for controlling display of the mobile terminal apparatus

A mobile terminal apparatus comprising:

• a display unit including a display screen;
• a display control program for displaying a plurality of thumbnail images respectively corresponding to a plurality of image data on the display screen to allow the plurality of thumbnail images to be chosen on the display screen;
• a control unit;
• and
• a storage unit storing the plurality of image data respectively corresponding to the plurality of thumbnail images,
• wherein the display control program causes the control unit to execute:
• a first control step of displaying the plurality of thumbnail images in a thumbnail display area of the display screen;
• a second control step of receiving an operation to choose a thumbnail image in the thumbnail display area in which the plurality of thumbnail images are displayed;
• a third control step of displaying an enlarged image of the chosen thumbnail image in an enlarged display area of the display screen, with the chosen thumbnail image kept displayed;
• a fourth control step of receiving an operation to change a size of the enlarged display area on the display screen;
• and
• a fifth control step of increasing an enlargement ratio of the enlarged image to fit the size of the enlarged display area when increasing the size of the enlarged display area.