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Smart illuminated electrical switch with touch control

  • US 9,575,587 B2
  • Filed: 06/01/2016
  • Issued: 02/21/2017
  • Est. Priority Date: 07/13/2015
  • Status: Expired due to Fees
First Claim
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1. A touch sensitive display comprising:

  • a display cover comprising a touch sensitive surface,a plurality of direct input sensors disposed behind the touch sensitive surface, for sensing direct user interaction with the touch sensitive surface,a segmented backlight comprising;

    a lightguide comprising a plurality of segments,wherein each segment of the plurality of segments has a forward facing surface that is substantially parallel to the touch sensitive surface and at least one planar surface disposed on a plane that is common to the plurality of segments,one or more separators for attenuating light transmitted between segments in the plurality of segments,wherein each segment in the plurality of segments is at least partially separated from another segment in the plurality of segments by at least one of the one or more separators, anda plurality of light generation components, wherein each light generation component in the plurality of light generation components is for transmitting light preferentially into one segment of the plurality of segments,wherein upon direct user interaction with a first location on the touch sensitive surface one or more first segments from the plurality of segments generate a first illuminated region on the touch sensitive surface,wherein the first illuminated region has substantially uniform illumination intensity,wherein the first illuminated region is more indirectly illuminated by light from the one or more first segments than directly illuminated by the plurality of light generation components, andwherein the first illuminated region encompasses the first location on the touch sensitive surface.

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