High Speed Addressing of a 0°-360° Bistable Twisted Nematic Liquid Crystal Display

概要

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In this letter we report the results of an investigation on the dynamics and optics of a twist bistable liquid crystal display. For the first time, the parameters required for high speed addressing of a O° -360° bistable device are presented. The display consists of a chiral-doped nematic liquid crystal layer with a nominal surface pretilt. The characteristics of the drive waveform allows selection between two optically distinct twist states of 0°and 360°. Optimizing the ratio of cell thickness to inherent pitch and waveform parameters leads to line selectiontimes, for a multiplexed display, of< 100 μs; in contrast with typical nematic bistable displays that require times of 〜10 ms. Full optical response can be achieved in times on the order of 15 ms.
社団法人応用物理学会の論文
1997-02-15