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[Keyword] rewritable medium(1hit)

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  • PDLC Rewritable Medium

    Keiko SEKINE  Wataru SAITO  

     
    PAPER-Optoelectronics

      Vol:
    E85-C No:5
      Page(s):
    1151-1155

    A new rewritable medium utilizing a guest-host (G-H) polymer-dispersed liquid-crystal (PDLC) film has been developed in our laboratory. The medium is thermally written and electrically erased. It is portable, like paper, and can store recorded data because of the memory effect of smectic-A liquid crystal (SmA LC), which exhibits bistable states of homeotropic and focal conic alignment. Dichroic dye is added to the SmA LC to form the G-H type. An evaluation of the characteristics revealed that this medium exhibits both high contrast and good reliability.