STUDY OF E-O PROPERTIES OF POLYMER NETWORK STABILIZED FERROELECTRIC LIQUID-CRYSTAL IN SMECTIC C-ASTERISK PHASE

A monomer with reactive diacrylate was mixed with a commercial ferroel ectric liquid crystal(FLC)mixture and polymerized under UV irradiation to obtain polymer network stabilized ferroelectric liquid crystals(PN SFLC). The polymer network formed in SmC phase is anisotropic and fib rils-like. Optical and scanning electron microscopy(SEM) were used to study the polymer network. The electric-optic characteristics of PNSFL C cells were also measured. As the experimental results, it is found t hat presences of anisotropic polymer network have great effects on the FLC molecules alignment. The E-O curve of PNSFLC device is like ''V'' shape, so it's easier to get gray scales than SSFLC device.