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Uniaxially stretched negative birefringent film and liquid crystal display having the same

  • US 5,430,565 A
  • Filed: 06/02/1993
  • Issued: 07/04/1995
  • Est. Priority Date: 06/02/1992
  • Status: Expired due to Term
First Claim
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1. A uniaxially stretched birefringent film having a negative birefringence, comprising a graft copolymer which is obtained by grafting, by addition-polymerization, at least one monomer selected from styrene and derivatives thereof to a polymer having an unsaturated double bond.

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