| 摘要 |
PURPOSE: A liquid crystal display device is provided to improve sensitivity and accuracy of a sensing device by forming a supply line of a control signal for a film transistor outputting a sensing signal of the sensing device. CONSTITUTION: A liquid crystal display includes a liquid crystal panel, a gate driving circuit, a data driving circuit, a timing controller, a switching unit, a sensor unit, and a sensing processing unit. A pixel is formed at a place where a plurality of data lines and gate lines are crossed with each. A gate driving circuit supplies a scan signal to the gate line, and a data driving circuit supplies a data voltage to the data line. The timing controller outputs a control signal of the gate driving circuit and the data driving circuit, and the timing controller controls an output of a source output enable signal(SOE) in touch of the liquid crystal panel. The switching unit supplies a switching voltage by switching the output for an output period of the source output enable signal controlled.
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