Patent ID: 9019215
Filing Date: 2015-04-28
Classification: G06F,G09G

Abstract:
1. A display with integrated touch sensor, comprising: a display panel comprising a common electrode, a plurality of pixels each configured to provide an electric field in cooperation with the common electrode, data lines for supplying data voltages to the pixels, gate lines for supplying scan pulses to the pixels, and Tx lines and Rx lines crossing each other and having mutual capacitances formed at intersections thereof, the common electrode, the plurality of pixels, the data lines, the gate lines, the Tx lines and the Rx lines being disposed on a same substrate; a display data driving circuit that supplies analog video data voltages to the data lines during a display period and maintains the voltage of the data lines at a same specific DC voltage during a touch sensor driving period; a display scan driving circuit that sequentially supplies scan pulses synchronized with the analog video data voltages to the gate lines during the display period; a touch sensor driving circuit that sequentially supplies driving pulses to the Tx lines during the touch sensor driving period; and a touch sensor readout circuit that receives a touch signal from the mutual capacitances via the Rx lines during the touch sensor driving period, wherein the common electrode receives a common voltage through the Tx lines and the Rx lines during the display period, wherein an output end of the display scan driving circuit comprises pull-down transistors connected to the gate lines, and the source-drain resistance of each of the pull-down transistors is a value between 10 kΩ to 150 kΩ.