ALIGNMENT LAYER ORIENTATION IN RASTER SCAN THERMALLY ADDRESSED SMECTIC LIQUID CRYSTAL DISPLAYS

摘要

ALIGNMENT LAYER ORIENTATION IN RASTER SCAN THERMALLY ADDRESSED SMECTIC LIQUID CRYSTAL DISPLAYS The orientation of the alignment layer in a rasterscanned thermally addressed smectic liquid crystal display device can be chosen relative to the writing orientation to accentuate a selected characteristic. A perpendicular alignment with respect to the scan direction produces uniformly written images in both scan directions to allow high quality bidirectional writing. In a preferred embodiment the liquid crystal cell includes a liquid crystal material comprising 4octyloxy-4'-cyanobiphenyl 37.5%, 4-decyl-4'-cyanobiphenyl 36.8% weight percent and 4-undecyl-4'-cyanobiphenyl 25.7 weight percent.