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Optical polarizer

  • US 6,096,375 A
  • Filed: 02/16/1999
  • Issued: 08/01/2000
  • Est. Priority Date: 12/21/1993
  • Status: Expired due to Term
First Claim
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1. A method for manufacturing a polarizer, comprising the steps of:

  • providing a reflective polarizer film including a polymeric material that becomes birefringent upon stretching;

    coating polyvinyl alcohol onto the reflective polarizer film; and

    stretching the coated reflective polarizer film to orient both the polymeric material of the reflective polarizer film and the polyvinyl alcohol.

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