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TOUCH DISPLAY

  • US 20120262413A1
  • Filed: 01/17/2012
  • Published: 10/18/2012
  • Est. Priority Date: 04/13/2011
  • Status: Active Grant
First Claim
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1. A touch display, comprising:

  • a light source, being capable of emitting an incident light;

    a light guide plate, having a side face and a bottom surface connected to said side face, wherein said light guide plate has a first refractive index and said side face neighbors said light source and receives said incident light;

    a cover layer, having a second refractive index and being placed over said light guide plate, wherein said second refractive index is smaller than said first refractive index;

    a plurality of pillar structures, having a third refractive index and being placed under said bottom surface of said light guide plate, wherein said third refractive index is larger than or equal to said first refractive index;

    a touch structure, placed over said cover layer; and

    an electronic paper device, placed under said pillar structures.

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