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DISPLAY SWITCH UNIT FOR A VEHICLE AND METHOD FOR PRODUCING THE DISPLAY SWITCH UNIT

  • US 20120257416A1
  • Filed: 04/06/2012
  • Published: 10/11/2012
  • Est. Priority Date: 04/08/2011
  • Status: Active Grant
First Claim
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1. A display switch unit for a vehicle comprising:

  • a first light guide plate having a first light source disposed at an edge side;

    a second light guide plate having a second light source disposed at the edge and disposed on the first light guide plate;

    a plurality of switch symbols disposed in the first light guide plate and the second light guide plate; and

    a plurality of proximity sensors having a sensor structure,wherein the sensor structure is assigned switch symbols in both light guide plates,wherein a material of the plurality of switch symbols comprises a plastic with a plurality of light-sensitive nanoparticles, andwherein the plurality of light-sensitive nanoparticles are distributed in the first light guide plate and the second light guide plate such that under edge-side irradiation the plurality of switch symbols are visible illuminated in color and three-dimensionally.

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