15 June 1992 Ferroelectric liquid crystal cell having gray scale for high-speed spatial light modulator
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Abstract
Gray scale was obtained with a ferroelectric liquid crystal (FLC) cell in which the twisted state of FLC molecules is gradually unwound by an applied voltage. The cell has an extinction ratio of 60 at 632. 8 nm and a response time of 300 jtsec. A spatial light modulator (SLM) with 256 x 256 pixels was fabricated by incorporating the FLC cell with an amorphous silicon thin film transistor array. This offers us a promising technology to realize a FLC-SLM with gray scale a fast frame time of 300 psec and a pixel number as large as 1000 x 1000.
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Yoshihiko Toyoda, Takeshi Mori, Noboru Mikami, Masahiro Nunoshita, Tatsuo Masumi, "Ferroelectric liquid crystal cell having gray scale for high-speed spatial light modulator", Proc. SPIE 1665, Liquid Crystal Materials, Devices, and Applications, (15 June 1992); doi: 10.1117/12.60407; https://doi.org/10.1117/12.60407
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