Patent ID: 8692944

Claim:
A liquid crystal display (LCD) device comprising: an LCD panel comprising: a plurality of data lines for transmitting data signals corresponding to display images; a first gate line for transmitting first scan signals; a second gate line disposed in parallel to the first gate line to for transmitting second scan signals; a sensor signal line; a first display unit electrically coupled to the first gate line and a corresponding data line among the plurality of data lines for displaying images based on the first scan signals and data signals respectively received from the first gate line and the corresponding data line; a second display unit electrically coupled to the second gate line and the corresponding data line for displaying images based on the second scan signals and the data signals respectively received from the second gate line and the corresponding data line; and a detecting unit comprising: a TFT switch including: a control end electrically coupled to the second gate line; a first end electrically coupled to the sensor signal line; and a second end selectively coupled to a constant bias voltage based on a touch command; and a storage capacitor electrically coupled between the first end and the second end of the TFT switch; and a signal processing circuit electrically coupled to the sensor signal line for outputting corresponding output signals when output signals of the sensor signal line vary.