Journal
LIQUID CRYSTALS
Volume 27, Issue 5, Pages 567-572Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/026782900202390
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We describe polarizing films formed from the lyotropic liquid crystalline phases of dyes dissolved in water. The dye polarizers possess a high dichroic ratio close to that of conventional polarizers. Tn addition, the dried dye films provide a uniform homogeneous orientation for thermotropic nematic materials. Therefore, thin dye films can simultaneously serve as internal polarizers and as alignment agents. These properties make them especially suitable for twisted nematic devices based on low cost birefringent plastic substrates.
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