MANUFACTURING METHOD OF ROLLER FOR MANUFACTURING PATTERNED RETARDER FILM
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United States of America Patent
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Issued Date -
Jan 31, 2013
app pub date -
Jul 25, 2012
filing date -
Jul 26, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for producing a roller used for manufacturing a retarder film is provided. The method includes providing a roller having a roller axis and a roller surface; providing an embossing tool having an embossing end; rotating the roller with respect to the roller axis; embossing the roller surface with the embossing tool with a first depth in a first predetermined distance and a second depth in a second predetermined distance; and removing the embossing from the roller surface. The embossing end has a plurality of parallel microgroove structures. The embossing tool embosses the roller surface to generate a first embossing area having a plurality of first embossing patterns and a second embossing area having a plurality of second embossing patterns.
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