| 摘要 |
PURPOSE:To obtain a phase-contrast film made of an aromatic polycarbonate resin, capable of easily obtaining a solution cast film, sufficient in hue compensation, causing no trouble such as color drift or blur, and free from the problem of low color accuracy inherent in the conventional color display. CONSTITUTION:This phase-contrast film is obtained by uniaxially or biaxially orienting a film consisting of an aromatic polycarbonate resin >=0.364 in specific viscosity produced by reaction of a carbonate precursor with dihydric phenols composed of 50-99mol% of 2,2-bis(4-hydroxyphenyl)propane and 1-50mol% of at least one kind selected from 1,1-bis(4-hydroxyphenyl)-1-phenylethane, 1,1-bis(4- hydroxyphenyl)cyclohexane,1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcycl ohexane, 4,4'-dihydroxytetraphenylmethane and 1,3-bis(4-hydroxyphenyl)-5,7- dimethyladamantane. |
