Patent ID: 8803833

Claim:
A touch panel comprising: a display module comprising a timing control circuit, a scan driving circuit and a data driving circuit, wherein the timing control circuit outputs a plurality of vertical synchronizing signals to the scan circuit, the timing control circuit outputs a plurality of horizontal synchronizing signals and a plurality of latch signals to the data driving circuit, the latch signals are different from the vertical synchronizing signals and the horizontal synchronizing signals, the display module generates a plurality of surface noises, the surface noises and the latch signals are synchronized, and the surface noises and the horizontal synchronizing signals are not fully synchronized; a touch sensor deposed above the display module and outputting a plurality of abnormal signals, wherein each abnormal signal include a sensing signal and the surface noises; and a signal processing unit electrically connected to the touch sensor and receiving the abnormal signals, wherein the signal processing unit calculates a predetermined time by utilizing a rising edge or a falling edge of each duty period of the latch signals, suspensively processes the sensing signal during the predetermined time, and then continuously processes the sensing signals beyond the predetermined times so as to keep away from each period of the surface noises.