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Touch input device with pathogen transmission mitigation

  • US 10,042,466 B2
  • Filed: 06/30/2016
  • Issued: 08/07/2018
  • Est. Priority Date: 03/11/2014
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a touch input at a touch location on a touch surface;

    selecting, with a controller and based upon the touch location, a portion of the touch surface which is less than the entire touch surface for illumination with ultraviolet light of a sterilization wavelength from at least one pixel of an ultraviolet pixel array comprising a plurality of pixels that are individually selectable by a controller, the selected portion being selected to include the touch location;

    selecting to activate the at least one pixel which is less than the plurality of pixels, and to deactivate the remaining pixels in the plurality of pixels conserving power of a device, to thereby generate with the activated at least one pixel ultraviolet light of a sterilization wavelength to illuminate the selected portion of the touch surface; and

    illuminating, by the selected at least one pixel of the ultraviolet pixel array where each pixel of the array is configured to illuminate a portion of the touch surface, only the selected portion of the touch surface with an ultraviolet light of a sterilization wavelength, wherein the illuminating occurs after the end of the receiving of the touch input.

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