Optical disc with a discontinuous surface structure

Abstract

Disclosed herein is an optical disc having an information area situated between an internal edge and an external edge of the optical disc. The optical disc includes a first substrate, a second substrate, a recording layer, a reflecting layer and a number of surface structures. The second substrate is disposed over the second substrate, the recording layer and the reflecting layer are disposed between the two substrates, and the reflecting layer is disposed between the first substrate and the recording layer. The surface structures are discontinuously disposed on the surface of the second substrate.

Description

RELATED APPLICATIONS[0001]This application is a continuation in part of Ser. No. 12 / 839,151, filed Jul. 19, 2010, which claims priority to Taiwan Application Serial Number 99206325, filed Apr. 9, 2010, the contents of each of which are herein incorporated by reference in their entireties.BACKGROUND[0002]1. Field[0003]The present disclosure relates to a storage medium. More particularly, the present disclosure relates to an optical disc.[0004]2. Description of Related Art[0005]Optical storage media is in advantage of convenient storage of data, long keeping time, high compatibility, low probability of mistake in writing and reading, and high resistance to damage. Accordingly, the optical storage media has been widely used to make a backup copy and data reservation in business and home application.[0006]However, optical discs are usually stored in a way that the optical discs are stacked up together. In this way, a printing side of one optical disc may directly contact with a reading ...

AI Technical Summary

Benefits of technology

[0027]The optical disc according to one embodiment of present disclosure, the surface structures disposed on the second substrate may prevent the optical disc from sticking with each other. Moreover, the optical disc has a simple structure and is cost-effective.

Problems solved by technology

When a user grabs the optical discs, the stuck optical discs may lead to an inconvenient usage.

Also, in the manufacturing procedure, the stuck optical discs increase the difficulty of grabbing the optical disc by a robot.

In addition, when the optical discs are stuck together, the evaporated vapor, generated from the ink formed on the printing side of the optic disc, may disadvantageously influence the quality of the reading side of the adjacent optical disc.

This type of printable optical discs typically has a smooth surface, and rendering the above-mentioned problem more serious.

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