Proceedings of the Polymer Society of Korea Conference (한국고분자학회:학술대회논문집)

The Polymer Society of Korea (한국고분자학회)
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Control of Wavelength Dispersion of Birefringence by Miscible Polymer Blends

  • Ougizawa, Toshiaki (Department of Organic and Polymeric Materials, Tokyo Institute of Technology) ;
  • Kuboyamaima, Keiichi (Department of Organic and Polymeric Materials, Tokyo Institute of Technology)
  • Published : 2006.10.13
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Abstract

The wavelength dispersion of birefringence (or retardation) is very important property for optical use of polymer films. Birefringence free film and retardation film have been widely used for applications such as liquid crystal display (LCD). In this study, miscible polymer blends which consist of polymers of positive and negative birefringence were found. By operating composition and orientation of molecules in the transparent blend films, the behavior of wavelength dispersion of birefringence (retardation) was controlled. The applicability to wideband birefringence free film and quarter wave (retardation) film was discussed.

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