A method for controlling a touch display device, the method using a control apparatus and comprising: obtaining, when applications (301, 302, 303) having a region within which the applications (301, 302, 303) are overlapped with each other are displayed on the touch display device, information that one application (301, 302, 303) of the applications (301, 302, 303) is displayed to cover one or more other applications (301, 302, 303) of the applications (301, 302, 303) within the region; determining, based on the obtained information, touch sensing cycles for at least two touch sensors (200, 201, 210, 211) among a plurality of touch sensors (200, 201, 210, 211) embedded in the touch display device to be different from each other, each of said at least two touch sensors (200, 201, 210, 211) sensing a corresponding part within an entire region where the applications (301, 302, 303) are displayed on the touch display device, wherein the touch sensing cycles are expressed in times per minute; and controlling each of said at least two touch sensors (200, 201, 210, 211) to perform a sensing operation based on its touch sensing cycle, wherein said determining comprises, when said one application (301, 302, 303) is displayed to cover the one or more other applications (301, 302, 303) within the region, determining a touch sensing cycle for a sensor of said at least two touch sensors to sense a touch on the region where said one application (301, 302, 303) is displayed but the one or more other applications (301, 302, 303) are not displayed to be higher than a touch sensing cycle for another sensor of said at least two touch sensors to sense a touch on another region where the one or more other application (301, 302, 303) is displayed but said one application (301, 302, 303) is not displayed. obtaining, when applications (301, 302, 303) having a region within which the applications (301, 302, 303) are overlapped with each other are displayed on the touch display device, information that one application (301, 302, 303) of the applications (301, 302, 303) is displayed to cover one or more other applications (301, 302, 303) of the applications (301, 302, 303) within the region; determining, based on the obtained information, touch sensing cycles for at least two touch sensors (200, 201, 210, 211) among a plurality of touch sensors (200, 201, 210, 211) embedded in the touch display device to be different from each other, each of said at least two touch sensors (200, 201, 210, 211) sensing a corresponding part within an entire region where the applications (301, 302, 303) are displayed on the touch display device, wherein the touch sensing cycles are expressed in times per minute; and controlling each of said at least two touch sensors (200, 201, 210, 211) to perform a sensing operation based on its touch sensing cycle, wherein said determining comprises, when said one application (301, 302, 303) is displayed to cover the one or more other applications (301, 302, 303) within the region, determining a touch sensing cycle for a sensor of said at least two touch sensors to sense a touch on the region where said one application (301, 302, 303) is displayed but the one or more other applications (301, 302, 303) are not displayed to be higher than a touch sensing cycle for another sensor of said at least two touch sensors to sense a touch on another region where the one or more other application (301, 302, 303) is displayed but said one application (301, 302, 303) is not displayed.