METHOD FOR FABRICATING REFLECTIVE OPTICAL FILM AND REFLECTIVE POLARIZING FILM AND METHOD FOR FABRICATING THE SAME
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United States of America Patent
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Issued Date -
Nov 13, 2008
app pub date -
Sep 7, 2007
filing date -
May 8, 2007
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Abandoned
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Abstract
A method for fabricating a reflective optical film is provided. A substrate is first provided. Next, a phase retardation film is formed on at least one side of the substrate by means of coating. Afterward, a cholesteric liquid crystal (CLC) layer is formed on the phase retardation film by means of coating. Hence, the conventional external bond fabrication process can be simplified. Further, the undesired optical results caused by the more disordered alignment in the upper layer of CLC being more disordered compared to that in the lower layer of CLC and the failure to display the compensation effect can be overcome.
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