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TOUCH-CONTROL METHOD FOR LIQUID DISPLAY DEVICE AND TOUCH-CONTROLLABLE LIQUID CRYSTAL DISPLAY DEVICE

  • US 20140285464A1
  • Filed: 07/05/2013
  • Published: 09/25/2014
  • Est. Priority Date: 03/20/2013
  • Status: Active Grant
First Claim
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1. A touch-control method for a liquid crystal display device, comprising:

  • switching from a display mode to a touch-control mode;

    determining whether there is a touch made by an object or whether there is an input made by an active pen;

    in the case where there is the input made by the active pen, starting an active pen detecting sub-mode in which an X-axis direction common electrode of the liquid crystal display device is defined as an X-axis direction receiving electrode and a Y-axis direction common electrode or a signal electrode is defined as a Y-axis direction receiving electrode; and

    determining a position or an action of the active pen according to amplitudes of signals of the X-axis direction receiving electrode and the Y-axis direction receiving electrode.

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