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Infrared touch system for flexible displays

  • US 10,261,634 B2
  • Filed: 10/17/2016
  • Issued: 04/16/2019
  • Est. Priority Date: 03/27/2014
  • Status: Active Grant
First Claim
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1. A touch interface moveable in multiple dimensions between a first state and a second state, the touch interface comprising:

  • a plurality of emitters arranged along a first edge of a flexible display component to emit light that propagates across a surface of the flexible display component, wherein when the touch interface is in the first state, the plurality of emitters are in a first position, and when the touch interface is in the second state, at least one of the plurality of emitters is in a second position different from the first position;

    a plurality of receivers arranged along a second edge of the flexible display component to detect light, wherein when the touch interface is in the first state, the plurality of receivers are in a third position, and when the touch interface is in the second state, at least one of the plurality of receivers is in a fourth position different from the third position;

    a touch controller coupled to the plurality of emitters and the plurality of receivers, the touch controller configured to;

    cause one or more of the plurality of emitters to emit light,receive, from the plurality of receivers, one or more signals indicative of detected light at the plurality of receivers, anddetermine at least one of a user interaction with the flexible display component or a current state of flexing of the flexible display component based on the one or more signals indicative of light detected at the plurality of receivers.

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