| 摘要 |
Disclosed are a control circuit and a noise removing method for a touch screen. The present invention includes technology for performing differential sensing on the outputs of two adjacent sensing lines of a touch screen panel and integrating a differential sensing signal to filter noises. The control circuit and noise filtering according to the present invention may remove the display noise, tri-wave lamp noise having a predetermined frequency, 60Hz noise and charger noise caused by battery charging that might affect the two adjacent sensing lines. |
