LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Oct 22, 2015
app pub date -
Nov 26, 2013
filing date -
Dec 14, 2012
priority date (Note) -
Abandoned
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Abstract
To provide a liquid crystal composition satisfies at least one or having a suitable balance regarding at least two of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large positive dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat and a large elastic constant; and an AM device having short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio, long service life and so forth. The liquid crystal composition contains a specific compound having large optical anisotropy and large dielectric anisotropy as a first component and a specific compound having large dielectric anisotropy as a second component, and may contain a specific compound having high maximum temperature or small viscosity as a third component and a specific compound having large dielectric anisotropy as a fourth component, and a liquid crystal display device includes the composition.
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