Kile Park Reed & Houtteman PLLC
Control circuit and noise removing method for touch screen
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, 60 Hz noise and charger noise caused by battery charging that might affect the two adjacent sensing lines.
SILICON WORKS CO., LTD.
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Jun Hyeok Jung Min
Yang Choi