Liquid Crystal Display Panel and the Inspection Method thereof
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United States of America Patent
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Issued Date -
Jun 30, 2011
app pub date -
Dec 22, 2010
filing date -
Dec 28, 2009
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Abandoned
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Abstract
The present invention provides a liquid crystal display (LCD) panel, comprising: a plurality of scan lines, data lines and sense lines, display cells and sensor elements. Each sensor element includes a first bottom electrode, a thin film transistor (TFT), a second bottom electrode, and a switch. When the switch is pressed down, the first bottom electrode is electrically connected to the second bottom electrode. The present invention also provides an inspection method for touching the above-mentioned LCD panel, comprising: opening one of the scan lines; electrically connecting the pixel electrode with an inspection circuit; comparing the input voltage to the threshold voltage, while the inspection circuit sends a control signal, representing that the display cell has been pressed.
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