CN101556810A

CN101556810A - Optical storage medium

Info

Publication number: CN101556810A
Application number: CNA2008103009341A
Authority: CN
Inventors: 黄小红; 廖善明
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-04-09
Filing date: 2008-04-09
Publication date: 2009-10-14

Abstract

The invention relates to an optical storage medium, which comprises a first recording medium, a second recording medium and an adhesive layer. The first recording medium and the second recording medium are adhered together through the adhesive layer. The first recording medium and the second recording medium comprise a first recording layer and a second recording layer respectively; and the first recording layer and the second recording layer are selected from a read-only data layer, a once writable data layer and a rewritable data layer. The optical storage medium integrates at least two of the read-only data layer, the once writable data layer and the rewritable data layer into one storage medium, so the storage capacity of a unit storage medium can be increased, and simultaneously, the unit storage medium can have more usages.

Description

Optical storage media

Technical field

The present invention relates to a kind of optical storage media, particularly a kind of compound optical storage media with larger capacity.

Background technology

Optical storage technology is used widely in fields such as data storage, home audio-visual amusements because have characteristics such as capacity is big, volume is little, stable height.Optical storage media commonly used is a CD-RW discsCD-RW, and it comprises the data Layer by two protective seam double teams, records encoded projection or pit on the data Layer.During sense data, utilize laser beam irradiation on projection or pit, institute's beam reflected can restore the binary code of representative " 1 ", " 0 " after receiving induction.And then, the binary code of gained can be restored recorded data on the optical storage media through decoding.

In the evolution of optical storage technology, the optical storage media of numerous kinds has appearred, as read-only medium CD, DVD, Write-once medium CD-R, DVD-R, DVD+R, and can make carbon copies medium CD-RW, DVD-RAM, DVD-RW, DVD+RW etc.All kinds of optical storage medias are applied to different occasions according to himself characteristic.Yet for all kinds of optical storage medias, unless its physical specification changes, the space that its memory capacity promotes is limited.

Summary of the invention

In view of this, be necessary to provide a kind of optical storage media with bigger storage space.

A kind of optical storage media comprises first recording medium and second recording medium and bonding coat, and described first, second recording medium is bonded together by described bonding coat, and described first, second recording medium respectively comprises first, second recording layer; Described first, second recording layer is from read-only data layer, write-once data Layer, can makes carbon copies the data Layer and choose.

Above-mentioned optical storage media with read-only data layer, write-once data Layer, can make carbon copies in three kinds of the recording layers at least two kinds be integrated on the storage medium, can increase the memory capacity of unit storage medium, the storage medium of the unit of making can have more purposes simultaneously.

Description of drawings

Fig. 1 is the structural representation of optical storage media better embodiment of the present invention.

Fig. 2 A, Fig. 2 B are respectively the structural representation of first, second recording medium of the described optical storage media of Fig. 1.

Embodiment

As shown in Figure 1, optical storage media better embodiment of the present invention comprises first recording medium 12, second recording medium 14 and the bonding coat 16 that first,

second recording medium

12,14 is bonded together.First recording medium 12 comprises first substrate layer 102, first reflection horizon 104 and first recording layer 106.Second recording medium 14 comprises second reflection horizon 110, second recording layer 112 and second substrate layer 114.Bonding coat 16 is made by transparent material, and it is between second reflection horizon 110 of first recording layer 106 of first recording medium 12 and second recording medium 14.

First, second substrate layer 102,114 is in the both sides of optical storage media respectively, is used for wherein first, second reflection horizon 104,110 and first, second recording layer 106,112 shielded.The material of first, second substrate layer 102,114 can be that (Polycarbonate PC) waits transparent plastic material to polycarbonate.

First reflection horizon 104, second reflection horizon 110 are used for the emitted light beams reflection with reading device institute.First, second reflection horizon 104,110 can adopt the mode of plated film to form, and its material can be metals such as silver, aluminium or its alloy.Wherein second reflection horizon 110 is translucent, so that need can see through the light beam that first recording layer 106 is read and write, and does not influence the reflection of the light beam that second recording layer 112 is read and write.

First recording layer 106, second recording layer 112 are used for record data, and it can use read-only data layer (ROM), a record data layer (Recordable) maybe can make carbon copies in the data Layer (Re-Recordable) any two kinds.The read-only data layer is the data record layer of suppressing in advance; Record data layer is can not the inversion recording layer, as organic dyestuff; Can make carbon copies data Layer is the possibility of reversal recording layer, as the phase transformation crystalline material.First, second recording layer 106,112 can be the recording layer that meets existing all kinds of universal disc formats, comprises CD, DVD, Blu-Ray DVD, HD-DVD etc.

During making, moulding first substrate layer 102, and first reflection horizon 104 and moulding first recording layer 106 (shown in Fig. 2 A) is set thereon.Moulding second substrate layer 114 and on second recording layer 112 and second reflection horizon 110 (shown in Fig. 2 B) is set.By bonding coat 16 first recording layer 106 on first substrate layer 102 and second reflection horizon 110 on second substrate layer are bonded together.

In addition; copyright protection aspect for safety of data, video and audio product is considered; can on writeable recording layer, lead to and show the information that writes content protecting; thereby by controlled copy mode data are reassigned by the mode that does not change the memory location, promoted safety of data.

Claims

1. an optical storage media comprises first recording medium, second recording medium and bonding coat, and described first, second recording medium is bonded together by described bonding coat, and described first, second recording medium respectively comprises first, second recording layer; It is characterized in that: described first, second recording layer is from read-only data layer, write-once data Layer, can makes carbon copies the data Layer and choose.

2. optical storage media as claimed in claim 1; it is characterized in that: described first recording medium also comprises first substrate layer, first reflection horizon; described first reflection horizon is between described first substrate layer and described first recording layer; described first substrate layer is used to protect described first recording layer, and described first reflection horizon is used for and will reads recorded beam reflection on described first recording layer.

3. optical storage media as claimed in claim 2 is characterized in that: described first reflection horizon is the coat of metal.

4. optical storage media as claimed in claim 2, it is characterized in that: described second recording medium also comprises second substrate layer, second reflection horizon, described second recording layer is between described second substrate layer and described second reflection horizon, described first, second substrate layer lays respectively at the outermost of described optical storage media, and described bonding coat is bonding with described first recording layer, described second reflection horizon.

5. optical storage media as claimed in claim 4 is characterized in that: described bonding coat is made by transparent material.

6. optical storage media as claimed in claim 4 is characterized in that: described second reflection horizon is the translucent coat of metal.

7. optical storage media as claimed in claim 1 is characterized in that: described read-only data layer, write-once data Layer, can to make carbon copies data Layer be Blu-ray DVD form.

8. optical storage media as claimed in claim 1 is characterized in that: described read-only data layer, write-once data Layer, can to make carbon copies data Layer be the HD-DVD form.

9. optical storage media as claimed in claim 1 is characterized in that: described write-once data Layer can not the inversion material be an organic dyestuff by making by the inversion material.

10. optical storage media as claimed in claim 1 is characterized in that: can make carbon copies data Layer is to be made by the possibility of reversal material, and described possibility of reversal material is the phase transformation crystalline material.