Polarizer and organic light emitting display apparatus comprising the polarizer
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United States of America Patent
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Feb 12, 2013
Grant Date -
Oct 23, 2008
app pub date -
Apr 18, 2008
filing date -
Apr 19, 2007
priority date (Note) -
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Abstract
A polarizer includes a base and a plurality of grids arranged on a surface of the base parallel to one another. Each of the grids comprises an intermediate layer and a semi-transmissive metal layer that reflects a part of external light incident thereon and transmits a part of the external light incident thereon. The semi-transmissive metal layer and the intermediate layer are alternately deposited to include at least two semi-transmissive metal layers. The thicknesses of the semi-transmissive metal layers increases in a direction in which the semi-transmissive metal layer is disposed away from the external light. An organic light emitting display apparatus includes the polarizer and has improved contrast and brightness.
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