Prism sheet and liquid crystal display device using the same
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United States of America Patent
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Dec 7, 2010
Grant Date -
Feb 12, 2009
app pub date -
Dec 17, 2007
filing date -
Aug 7, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
An exemplary prism sheet (20) includes a light input surface (201), a light output surface (202) opposite to the light input surface, and a plurality of micro-depressions (205). The plurality of micro-depressions are defined in the light output surface and arranged in a skewed matrix. Each micro-depression has four side surfaces connected to each other, and a transverse width of each side surface decreases along a direction away from the light output surface and close to the light input surface. The present invention also provides a liquid crystal display device (200) using the above-described prism sheet.
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