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Method and Device for User Interaction

  • US 20080303802A1
  • Filed: 12/18/2006
  • Published: 12/11/2008
  • Est. Priority Date: 12/22/2005
  • Status: Active Grant
First Claim
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1. A user interaction device (200, 300) comprisingan optical module (210, 310) having a layer (5) of a substance being electrically switchable between a first visual state and a second visual state, and an electrical switch (6a, 6b) for electrically switching the substance between the first and second visual states,a detector (6a, 11b) for detecting the presence of a physical object, anda control unit (290, 390) for controlling the electrical switch in response to the detection of the presence of the physical object.

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