Patent ID: 9582903
Date: 2017-02-28
CPC Classifications: G06F,G06T

Claim:
1. A display terminal device having a display screen on which a touch operation can be performed at an arbitrary point, the display terminal device comprising: a controlling section which performs control to display, on the display screen, first screen information for the display screen, and to generate second screen information identical to the first screen information and transmit the generated second screen information to an external display device; a judging section which, when a gesture operation by a finger performing an arbitrary touch operation is detected on a point on the display screen on which the first screen information is being displayed, detects the point of the touch operation on the display screen, and judges which gesture operation type, from among a plurality of gesture operation types prepared in advance including at least a pinch-out operation type and a flick operation type, an operation type of operation contents of the gesture operation on the display screen corresponds to; and a superimposing section which selects a pinch-out operation imaging image representing, as a gesture image, a pinch-out operation by a gesture by fingers of a hand if the judged gesture operation type is the pinch-out operation type, and selects a flick operation imaging image representing, as a gesture image, a flick operation by a gesture by fingers of a hand if the judged gesture operation type is the flick operation type, and superimposes the selected operation imaging image near the detected point of the touch operation on the second screen information, wherein, when the gesture operation is detected, the controlling section performs control to transmit, to the external display device, composite second screen information obtained by superimposing the operation imaging image on the second screen information, without changing display contents of the first screen information being displayed on the display screen.