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Optical diskette

A technology for optical discs and optical discs, which is applied to optical record carriers, optical record carriers manufacturing, recording/reproducing by optical methods, etc. injuries, etc.

Inactive Publication Date: 2008-11-05
DAXON TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, after a period of use of traditional optical discs, the substrate (that is, the reading surface) is easily scratched, which not only affects the appearance of the optical disc, but also seriously affects the quality of reading and recording
If the situation is serious, it may even cause the data to be unreadable, which will greatly affect users

Method used

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  • Optical diskette
  • Optical diskette
  • Optical diskette

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The optical disc of this embodiment is described in detail by taking a CD-R (Compact Disc Recordable) as an example. Please refer to figure 1 , which is a schematic structural diagram of an optical disc according to Embodiment 1 of the present invention. The optical disc 100 of this embodiment includes: a substrate 110 , a recording layer 120 , a reflective layer 130 , a first protection layer (lacquar layer) 140 and a second protection layer 150 . The substrate 110 includes polycarbonate (PC), and the substrate is, for example, a polycarbonate substrate (PC substrate). The recording layer 120 is formed on a first surface of the substrate 110 , the reflective layer 130 is formed on the recording layer 120 , and the first protective layer 140 is formed on the reflective layer 130 . On the other hand, the second passivation layer 150 is formed on the second surface of the substrate 110 .

[0029] The first surface of the substrate 110 has a spiral groove (groove), whic...

Embodiment 2

[0035] The optical disc in this embodiment is described in detail by taking a CD-RW (Compact Disc Rewriteable) as an example. The difference between this embodiment and the above embodiments is only that the material of the recording layer is changed, and the first buffer layer and the second buffer layer are added. The rest of the components are the same, and the labels are still used, and will not be repeated here.

[0036] Please refer to figure 2 , which shows a schematic cross-sectional view of an optical disc according to Embodiment 2 of the present invention. The optical disc 200 of this embodiment includes: a substrate 110 , a first buffer layer 215 , a recording layer 220 , a second buffer layer 225 , a reflective layer 130 , a first protection layer 140 and a second protection layer 150 . The first buffer layer 215 is located between the first substrate 110 and the recording layer 220 to protect the substrate 110 from melting and deformation. The second buffer la...

Embodiment 3

[0052] The following takes a DVD-R (Digital Versatile Disc Recordable) as an example to describe in detail. Please refer to Figure 5 , which is a schematic structural diagram of an optical disc according to Embodiment 3 of the present invention. The optical disc 300 of this embodiment includes a substrate 310 , a recording layer 320 , a reflective layer 330 , a first protection layer 340 , a substrate 350 and a second protection layer 360 . The substrate 310 includes polycarbonate (PC), such as a polycarbonate substrate (PC substrate). The recording layer 320 is formed on a first surface of the substrate 310 , the reflective layer 330 is formed on the recording layer 320 , the first protective layer 340 is formed on the reflective layer 330 , and the substrate 350 is formed on the first protective layer. On the other hand, the second passivation layer 360 is formed on a second surface of the substrate 310 .

[0053] The difference between this embodiment and the first embo...

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Abstract

A optical disc is prepared as forming record layer on the first surface of base plate and reflection layer on record layer, forming the first protection layer on reflection layer and the second protection layer with a transparent material on the second surface of base plate, setting hardness of the second protection layer to be greater than that of base plate.

Description

technical field [0001] The invention relates to an optical disc, in particular to an optical disc with a protective layer, which is formed on the reading surface of the optical disc to protect the disc from being scratched. Background technique [0002] Traditional optical discs use polycarbonate (PC) material as a substrate, and a recording layer, a reflective layer, and a protective layer are sequentially coated on the surface of the substrate. Generally speaking, a traditional optical disc has two surfaces, the surface with a protective layer is its printing surface, that is, the side generally printed with a record cover or brand; after being turned over, the surface with a substrate is its reading surface. [0003] However, after a traditional optical disc is used for a period of time, the substrate (that is, the reading surface) is easily scratched, which not only affects the appearance of the optical disc, but also seriously affects the quality of reading and recordin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/24G11B7/254G11B7/26G11B7/242G11B7/252
Inventor 王堆城
Owner DAXON TECH INC