Optical disc and manufacturing method thereof
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United States of America Patent
Stats
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Feb 14, 2012
Grant Date -
Apr 29, 2010
app pub date -
Aug 27, 2009
filing date -
Oct 28, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of manufacturing an optical disc comprises the steps of: (1) forming a substrate including an inner supporting section and an outer information recording section, the inner supporting section having a thickness larger than that of the outer information recording section; and (2) forming a vibration suppressing layer by printing UV curable paste three to five times over the surface of the non-recording side of the outer information recording section from an inner edge of the outer information recording section to a designated diameter, wherein the printed UV curable paste has a weight of 15% to 25% of the weight of the substrate, and at least 90% of the weight of the printed UV curable paste is distributed within a circular region with diameter 90 mm to 110 mm, each time the UV curable paste printed not exceeding 5% of the weight of the substrate.
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