Matrix liquid crystal display
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United States of America Patent
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Mar 6, 2007
Issued Date -
N/A
app pub date -
Mar 17, 2005
filing date -
Oct 20, 1988
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Expired
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Abstract
Described are matrix liquid crystal displays having two plane parallel support plates which together with a frame form a cell, integrated non-linear elements for switching individual picture elements on the support plates and a nematic liquid crystal mixture which is present in the cell and has a positive dielectric anisotropy and high resistivity. The liquid crystal mixture has a nematic phase range of at least 60.degree. C., a maximum viscosity at 20.degree. C. of 30 mPas and a mean dielectricity constant .epsilon..ltoreq.8. The liquid crystal mixture contains: a) at least 10% by weight of a liquid-crystalline component B having one or more compounds of the following formulae: ##STR00001## and b) up to 90% by weight of a liquid-crystalline component A having one or more compounds with a dielectric anisotropy of -1.5 to 1.5 of the formula I: ##STR00002##
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