Patent ID: 9134824
Filing Date: 2015-09-15
Classification: G06F

Abstract:
1. A touch sensing device comprising: a touch screen including Tx lines, Rx lines crossing the Tx lines, and touch sensors formed at crossings of the Tx lines and the Rx lines; a Tx driving circuit configured to supply a driving signal to each of the Tx lines; and an Rx driving circuit configured to double sample signals received through the Rx lines in one period of the driving signal, the signals generated on the Rx lines in response to the driving signals supplied to the Tx lines, wherein the Rx driving circuit includes: a multiplexer configured to receive first and second signals generated from double sampling of the signals received through the Rx lines and switch on or off a signal transmission path of the first and second signals; and an integrator configured to sample and integrate the first and second signals received from the multiplexer.