TOUCH DISPLAY DEVICE, AND CONTROLLING METHOD AND CIRCUIT THEREOF
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United States of America Patent
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app pub date -
Jun 18, 2015
filing date -
May 26, 2015
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Abstract
A touch display device, a controlling method, and a circuit thereof are disclosed. During a touch stage, under the control of a control circuit, the TFTs of the touch display device are all turned off, and a same control signal is provided to the data line and the common electrode. The data line and the common electrode always have a same electric potential during the touch stage, and thus the parasite capacitor that is formed by the data line and the common electrode cannot be charged. According to the present disclosure, the influence of the aforesaid parasite capacitor on the touch detection signal can be avoided effectively, and thus the accuracy of the touch detection can be improved.
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