Patent ID: 9146635
Filing Date: 2015-09-29
Classification: G02F,G06F,G09G

Abstract:
1. A touch panel-equipped display device, comprising: a touch panel; a display unit having source bus lines; a source bus line potential switching unit that switches a potential of the source bus lines at a switching timing, the switching timing occurring during a vertical blanking period of the display device; and a sensing unit that conducts sensing for a touch panel during a sensing period that is a period in the vertical blanking period, wherein the sensing period and the switching timing are set such that the sensing period does not overlap the switching timing, wherein the sensing unit receives, from the source bus line potential switching unit, a timing signal that defines said switching timing, and the sensing unit sets the sensing period so as not to overlap said switching timing based on the timing signal, and wherein the sensing unit conducts sensing for the touch panel during a sensing period that repeatedly occurs at a certain interval, and when the sensing unit determines, based on the timing signal, that the sensing period and the switching timing would overlap, the sensing unit discontinues the sensing period prior to the switching timing, and resumes the sensing period after the switching timing.