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DISPLAY APPARATUS FOR SENSING TOUCH AND PROVIDING AN ELECTRO-TACTILE FEELING AND A METHOD OF DRIVING THE SAME

  • US 20140146005A1
  • Filed: 03/15/2013
  • Published: 05/29/2014
  • Est. Priority Date: 11/27/2012
  • Status: Active Grant
First Claim
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1. A touch tactile display apparatus, comprising:

  • a display panel configured to display an image in a frame section; and

    a tactile touch portion configured to sense a touch by a user and provide an electro-tactile feeling to an area in which the touch is sensed,wherein the tactile touch portion comprises;

    drive electrodes spaced apart from each other;

    sensing electrodes spaced apart from the drive electrodes, wherein capacitors are formed between the sensing electrodes and each of their adjacent drive electrodes;

    a touch processor configured to sense an amount of change of capacitance of the capacitors to obtain a touch coordinate; and

    a tactile processor configured to receive the touch coordinate from the touch processor, provide a first tactile signal to a drive electrode corresponding to the touch coordinate and provide a second tactile signal different from the first tactile signal to the rest of the drive electrodes and the sensing electrodes.

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