Optical disc with enforced structure
OwnerJia-Ray Liu, Fung-Hsu Wuinventors
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Abstract
The invention discloses an optical disc comprising a substrate, a multi-layer structure, and a plurality of ribs. The substrate has a first surface and a second surface set opposite to the first surface. The multi-layer structure is formed on the first surface of the substrate and comprises at least one recording layer. The ribs are formed on the second surface of the substrate. The ribs are used for increasing the rigidity of the optical disc, such that a runout of the optical disc can be suppressed while the optical disc is rotated.
Claims17
An optical disc, comprising:
- a substrate having a first surface and a second surface set opposite to the first surface;
- a multi-layer structure, formed on the first surface of the substrate, comprising at least one recording layer;
- and
- a plurality of ribs, formed on the second surface of the substrate, for suppressing a runout of the optical disc while the optical disc is rotated.
A substrate of an optical disc, comprising:
- a main body having a first surface and a second surface set opposite to the first surface;
- and
- a plurality of ribs, formed on the second surface of the main body, for suppressing a runout of the optical disc while the optical disc is rotated.
An optical disc with an enforced structure, the optical disc comprising a substrate, the substrate having a first surface, a second surface, and a plurality of ribs formed on the second surface, the second surface being opposite to the first surface, the ribs being used as the enforced structure and to suppress a runout of the optical disc while the optical disc is rotated.
Dependencies are inferred from the claim text.