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LIQUID MULTI-TOUCH SENSOR AND DISPLAY DEVICE

  • US 20090033637A1
  • Filed: 07/30/2008
  • Published: 02/05/2009
  • Est. Priority Date: 07/30/2007
  • Status: Active Grant
First Claim
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1. A liquid multi-touch sensor system, comprising:

  • a tank containing a liquid therein and adapted to receive light and to cause at least some of the received light to undergo total internal reflection through the liquid within the tank, the liquid and the tank collectively adapted to allow the total internal reflection to be frustrated upon occurrence of a physical phenomena, and adapted to allow some of the light undergoing total internal reflection to escape from the tank when the total internal reflection is frustrated; and

    an image sensor adapted to detect light escaping the tank.

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