Thin film transistor liquid crystal display having capacitive touch sensor embedded therein
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United States of America Patent
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Nov 22, 2016
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app pub date -
Jul 12, 2013
filing date -
Sep 7, 2012
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Abstract
Provided is a thin film transistor liquid crystal display (TFT LCD) in which a capacitive touch sensor is embedded, the TFT LCD comprising: a touch sensor source follower TFT formed on a substrate; a first electrode connected to a gate electrode of the touch sensor source follower TFT; a touch sensor reset TFT including the first electrode; an insulator film formed on the first electrode; a second electrode formed on the insulator film; and a display switching TFT including the second electrode, wherein the second electrode is connected to a drain electrode of the display switching TFT; the touch sensor reset TFT and the gate electrode of the touch sensor source follower TFT share the first electrode; and the first electrode is connected to the gate electrode of the touch sensor source follower TFT.
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