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Method for controlling an index modulation of a switchable polymer dispersed liquid crystal optical component

  • US 7,872,707 B1
  • Filed: 04/07/2006
  • Issued: 01/18/2011
  • Est. Priority Date: 04/08/2003
  • Status: Expired due to Fees
First Claim
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1. A method for controlling an index modulation of a switchable polymer dispersed liquid crystal optical component comprising:

  • providing a pre-polymer liquid crystal material between a first and second substrate, the first and second substrate having a first and second electrode pattern thereon, respectively, for applying a switching voltage to the switchable polymer dispersed liquid crystal optical component, wherein at least one each of the first and second electrode patterns consists of interdigitated electrodes;

    applying a voltage approximately equal to the switching voltage to only every other interdigitated electrode, creating an in-plane electric field within the pre-polymer liquid crystal material;

    holographically irradiating the pre-polymer liquid crystal material resulting in polymerization of the pre-polymer liquid crystal, wherein liquid crystal droplets formed from the holographic irradiation are formed with symmetry axes oriented in a same direction as the in-plane electric field; and

    removing the voltage approximately equal to the switching voltage once polymerization is complete.

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