Patent ID: 9407779
Filing Date: 2016-08-02
CPC Classification: G06F,H04N

Claim Text:
1. A display apparatus, comprising: a touch panel unit having a panel surface to be touched and configured to detect a touched position of the panel surface; a display unit configured to display a predetermined image to be depressed via the panel surface; a coordinate measuring unit configured to measure a coordinate in a first direction, a coordinate in a second direction and a coordinate in a third direction of the position of a certain object located within a predetermined distance from the panel surface according to a change in the position of the object with directions defining a coordinate plane on the panel surface as the first and second directions and a direction perpendicular to the panel surface as the third direction, the coordinate measuring unit including three or more distance measuring sensors arranged at a distance from each other and each configured to measure a distance to the object and a coordinate calculation unit configured to compute a plurality of combinations of the coordinate in the first direction and the coordinate in the second direction using the distances measured by the plurality of distance measuring sensors, the coordinate measuring unit computing the coordinate in the third direction in the case of satisfying a condition that all the coordinates in the first direction coincide and all the coordinates in the second direction coincide in the plurality of combinations and not computing the coordinate in the third direction in the case of not satisfying the condition; and a display control unit configured to execute a display control for causing the display unit to display a first mark image for defining a peripheral range of a position determined by the coordinate in the first direction and the coordinate in the second direction together with the predetermined image and causing the display unit to display the first mark image such that an area defined by the first mark image becomes smaller as the coordinate in the third direction becomes smaller when the coordinate in the first direction, the coordinate in the second direction and the coordinate in the third direction are measured by the coordinate measuring unit, wherein the display control unit causes the display unit to display the first mark image when the coordinate in the third direction is computed and does not cause the display unit to display the first mark image when the coordinate in the third direction is not computed in the display control.