Contrast ratio and viewing angle improvement for a TN- LCD
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United States of America Patent
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Issued Date -
Aug 30, 2007
app pub date -
Dec 29, 2006
filing date -
Dec 29, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A liquid crystal display includes a liquid crystal layer between a first substrate and a second substrate, at least one first-type optical compensation layer over the liquid crystal layer, and at least one polarizer layer over the first-type optical compensation layer. The liquid crystal layer has a birefringence liquid crystal material. The first-type optical compensation layer includes a negative birefringence material. The optical axis of the first-type optical compensation layer is substantially parallel to a plane of either of the first substrate or the second substrate throughout the the layer. A liquid crystal display is prepared by forming a liquid crystal layer as described above, forming at least one first-type optical compensation layer as described above, and forming at least one polarizer layer over the first-type optical compensation layer.
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