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Color correcting polarizer

  • US 7,144,608 B2
  • Filed: 06/18/2003
  • Issued: 12/05/2006
  • Est. Priority Date: 01/24/2003
  • Status: Expired due to Fees
First Claim
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1. A color correcting polarizer comprising:

  • a polarizer layer; and

    at least one discotic film layer,wherein the polarizer layer is an O-type polarizer, andthe discotic film layer is optically transparent within the range of visible wavelength, and works as a polarizer in the wavelength range at least from 380 to 500 nm,wherein the discotic film layer is formed from a lyotropic liquid crystal based on discotic dichroic dye molecules, andthe discotic film layer is made of the sulfonic derivatives of phenanthro-9′

    , 10′

    ;

    2,3 quinoxaline of the general structural formula

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