Patent ID: 9703438
Date: 2017-07-11
CPC Classifications: G06F,G09G

Claim:
1. A touch detection apparatus installed in a display device, the touch detection apparatus comprising: a plurality of touch pads configured to form a touch capacitance by approaching a touch input device to the display device; a plurality of sensor signal lines connected to the plurality of touch pads, respectively; a touch drive IC (TDI) receiving a plurality of touch signals from the plurality of touch pads through the plurality of sensor signal lines, respectively; and a driving capacitor, wherein one portion of the driving capacitor is connected to a touch pad and the other portion of the driving capacitor is applied with a driving voltage for touch detection, wherein the TDI comprises a driving voltage generator configured to generate the driving voltage, and detects a touch signal using a driving back phenomenon when the touch capacitance is added, wherein when the TDI is positioned at a down side of the touch pad on a horizontal plane, a sensor signal line is connected to any one corner at a right-down and a left-down of the touch pad, the touch pad having forth corners, and wherein a space between two adjacent sensor signal lines is narrower than a width of one pixel of the display device for noise emission, thereby minimizing an effect of a noise to an image quality of the pixel.