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Display device and method of controlling touch detection unit

  • US 7,952,565 B2
  • Filed: 02/22/2007
  • Issued: 05/31/2011
  • Est. Priority Date: 02/24/2006
  • Status: Expired due to Fees
First Claim
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1. A display device comprising:

  • a display panel;

    a plurality of pixels disposed on the display panel;

    a plurality of sensing units disposed on the display panel and adapted to generate a plurality of sensing signals in response to touches received by the sensing units;

    a sensing signal processor adapted to receive the sensing signals and generate sensing data in response to the sensing signals; and

    a touch detection unit having a first controller adapted to determine, based on the sensing data, whether or not a touch has been received by the sensing units and whether or not the sensing signals are in a desired range, and a second controller adapted to determine a position of the touch based on the sensing data and adapted to stabilize the sensing signals in the desired range;

    wherein the touch detection unit further comprises a register adapted to store values associated with a plurality of flags; and

    wherein the flags comprise an unstable state flag configured to indicate whether or not the sensing signals are in the desired range.

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