Displaying device which can receive pinch out operation

A method of controlling a displaying device having an image display unit for displaying an image on a displaying screen, comprising the processes to:

• receive a pinch out operation in which two contact points contact with the displaying screen and the two contact points move away from each other, when the image display unit displays the image;
• determine whether there is an identified area in the image or not, in case that the pinch out operation is received;
• enlarge the image around a center of the enlargement in the identified area, in case that there is the identified area in the image;
• enlarge the image around a center of the enlargement as a point moved from a midpoint of the pinch out operation in a direction determined based on displacement of the two contact points, a distance of the movement is determined based on displacement of the two contact points, in case that there is not the identified area in the image;
• and
• select a control as the identified area from among controls in the image, the distance between the midpoint of the pinch out operation and the selected control is less than a prescribed value,
• wherein the method determines that there is the identified area, in case that the control is selected, and the method determines that there is not the identified area, in case that the control is not selected.

A non-transitory computer-readable recording medium encoded with a control program for a displaying device having an image display unit for displaying an image on a displaying screen, the control program causing a computer to execute the processes to:

• receive a pinch out operation in which two contact points contact with the displaying screen and the two contact points move away from each other, when the image display unit displays the image;
• determine whether there is an identified area in the image or not, in case that the pinch out operation is received;
• enlarge the image around a center of the enlargement in the identified area, in case that there is the identified area in the image;
• enlarge the image around a center of the enlargement as a point moved from a midpoint of the pinch out operation in a direction determined based on displacement of the two contact points, a distance of the movement is determined based on displacement of the two contact points, in case that there is not the identified area in the image;
• and
• select a control as the identified area from among controls in the image, the distance between the midpoint of the pinch out operation and the selected control is less than a prescribed value,
• wherein the computer determines that there is the identified area, in case that the control is selected, and the computer determines that there is not the identified area, in case that the control is not selected.

A displaying system including a display device and a display terminal device which can communicate with the display device comprising:

• an image display unit for displaying an image on a displaying screen of the display terminal device;
• a touch panel for receiving a pinch out operation in which two contact points contact with the displaying screen and the two contact points move away from each other, when the image display unit displays the image;
• and
• a processor;
• wherein the processor is configured to:
• determine whether there is an identified area in the image or not, in case that the pinch out operation is received;
• enlarge the image on the displaying screen, around a center of the enlargement in the identified area, in case that there is the identified area in the image;
• enlarge the image on the displaying screen, around a center of the enlargement as a point moved from a midpoint of the pinch out operation in a direction determined based on displacement of the two contact points, a distance of the movement is determined based on displacement of the two contact points, in case that there is not the identified area in the image;
• and
• select a control as the identified area from among controls in the image, the distance between the midpoint of the pinch out operation and the selected control is less than a prescribed value,
• wherein the processor determines that there is the identified area, in case that the control is selected, and the processor determines that there is not the identified area, in case that the control is not selected.