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Display apparatus with optical input function

  • US 7,924,273 B2
  • Filed: 10/05/2007
  • Issued: 04/12/2011
  • Est. Priority Date: 11/06/2006
  • Status: Expired due to Fees
First Claim
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1. A display apparatus comprising:

  • a display unit configured to display an image having a part that an object contacts;

    a plurality of optical input units disposed in the display unit and configured to output electric signals in a magnitude corresponding to an amount of received light;

    a convert unit configured to receive the signals from each optical input unit and convert the signals into gradation values to obtain a picked-up image;

    a designation unit configured to designate an area in the picked-up image corresponding to the part;

    a process unit configured to find a coordinate of the object in accordance with data within the designated area of the picked-up image; and

    a replacement unit configured to replace a region other than the designated area in the picked-up image, with a predetermined gradation value that is a median value of the gradation in the picked-up image.

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