Liquid crystal display element with different ratios of polydomain and monodomain states
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United States of America Patent
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Oct 26, 2004
Grant Date -
Mar 7, 2002
app pub date -
Jun 29, 2001
filing date -
Jun 30, 2000
priority date (Note) -
Expired
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Abstract
A liquid crystal light modulation element includes a liquid crystal layer between first and second substrates. The liquid crystal layer includes a liquid crystal material exhibiting a cholesteric phase having a peak selective reflection wavelength in a visible wavelength range. When the liquid crystal layer is in the selective reflection state, it has pixel regions near the first and second substrates. The liquid crystal domains in the pixel regions near the first substrate are in a mixed state of polydomain and monodomain states. The liquid crystal domains in the pixel regions near the first substrate have a first ratio between the liquid crystal domains taking the polydomain and monodomain states. The liquid crystal domains in the pixel regions near the second substrate have a second ratio between the liquid crystal domains taking the polydomain and monodomain states. The first ratio is different from the second ratio.
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