Optical film for reducing color shift and LCD device having the same
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United States of America Patent
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Apr 15, 2014
Grant Date -
Jun 2, 2011
app pub date -
Nov 29, 2010
filing date -
Nov 30, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
An optical film for reducing color shift is provided in front of a display panel. The optical film includes a background layer, and a plurality of lens parts, which are spaced apart from each other, engraved or embossed on the background layer. The lens parts diffuse light incident thereon and then to mix the diffused light with light passing between the lens parts. The lens parts have a depth to width ratio of 0.25 or more, a spacing to pitch ratio ranging from 0.5 to 0.95, and a pitch of 45 μm or less. A display device may include the optical film.
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