CN1595511A

CN1595511A - DVD structure and method for manufacturing same

Info

Publication number: CN1595511A
Application number: CNA2003101139121A
Authority: CN
Inventors: 朱敬华
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-11
Filing date: 2003-11-03
Publication date: 2005-03-16

Abstract

The present invention discloses a two-side readable/writable DVD structure which includes a first single side DVD and a first single side DVD combined with it. Its manufacturing method includes following steps: (1) forming two single side DVDs; (2) combining the two single side DVDs. Compared with the existing technology, the DVD structure of the invention can be recorded by two sides, one DVD has the capacity of two existing DVDs, the capacity exceeds the CD-ROM (about 650 MB), and even exceeds the hard disk capacity (about 2 GB - 4GB). The invention also discloses the kinds of single side and double side record and writing.

Description

DVD CD-RW discsCD-RW structure and manufacture method thereof

[affiliated technical field]

The present invention relates to a kind of CD-RW discsCD-RW structure and manufacture method thereof, refer to a kind of DVD CD-RW discsCD-RW structure and manufacture method thereof especially.

[background technology]

Digital versatile disc (Digital versatile Disk, DVD) be to develop out from existing C D-ROM, size is the same, but because of dwindling of digital recording spacing, change with recording mode, it is many to make that storable content increases, and it can be used to equally store and comprises music, video signal, and various types of numerical datas such as general computer archive data.The dynamic film of stored video signal adopts the digital compression technology of MPEG2 grade, and quality can surmount LD video disc, VIIS video tape, and existing VCD film laser disc; Stored message adopts the stereophony technology of Doby (DOBBY) AC-3 grade.

At present, single DVD CD-RW discsCD-RW can store a high-quality film more than 135 minutes, its capacity is 4.7GB, this capacity is equivalent to 7 times of at present general CD CD-RW discsCD-RW, size is identical with existing C D sheet, and DVD CD-RW discsCD-RW volume type comprises two layers of single face regeneration one deck and single face regeneration.The volume of information that single face regeneration one deck DVD CD-RW discsCD-RW writes down on a surface is 4.7GB.

See also Fig. 1, though two layers of DVD CD-RW discsCD-RW of single face regeneration also are record materials on a surface, it can utilize the data spacing to carry out double record, and the capacity of a slice DVD CD-RW discsCD-RW is 8.5GB like this.

Single face is only read the format record entity only can provide the single face record, and can't double-sided recording modes, and restriction only reads data and can't write record, and not only the memory body capacity can't increase, and more causes single face limited space problem.

[summary of the invention]

The object of the present invention is to provide a kind of DVD CD-RW discsCD-RW structure and manufacture method thereof of two-sided read/write, can effectively increase the memory body capacity, and solved common DVD CD-RW discsCD-RW single face limited space problem.

The object of the present invention is achieved like this: a kind of DVD CD-RW discsCD-RW, it is characterized in that, and comprise that the first single face DVD CD-RW discsCD-RW reaches the first single face DVD CD-RW discsCD-RW of combination with it.Described first and second single face DVD CD-RW discsCD-RW includes transparent substrates, dye coating and reflection horizon, is provided with bonding coat between described single face DVD CD-RW discsCD-RW, and wherein dye coating is between reflection horizon and substrate.Wherein, described first and second single face DVD CD-RW discsCD-RW also comprises protective seam, and described protective seam is between bonding coat and reflection horizon, and described dye coating is regeneration one deck structure or regeneration two-layer structure.

A kind of manufacture method of DVD CD-RW discsCD-RW comprises the steps: two single face DVD of (1) moulding CD-RW discsCD-RW; (2) in conjunction with described two single face DVD CD-RW discsCD-RW.The method of described moulding single face DVD laser disc comprises: (a) on the mould of forming machine, load onto the DVD stamper, and to be shaped transparent resin base; (b) on resin base, form dye coating; (c) signal face in resin base forms the reflection horizon.Wherein, described method is the methods that adopt hot melt adhesive or UV to solidify glue bond in conjunction with described two single face DVD CD-RW discsCD-RW, promptly is coated with on the reflection horizon and forms bonding coat with sticker.

In the present invention, the method for described moulding single face DVD laser disc also can be included in the step that forms protective seam on the reflection horizon.Described transparent resin base adopts injection moulding, forms dye coating by spin coating proceeding, forms the reflection horizon and adopts sputtering process.Described reflection horizon is a metallic reflective coating, is preferably aluminium matter, and described transparent resin base is made by polycarbonate (PC) usually, and described dye coating is made by cyanine (cyanine) or azo dyes (azo dye) usually.Described method also is included in the step that generates the regeneration two-layer structure on the dye coating.Described DVD CD-RW discsCD-RW thickness is 1.1-1.3mm, the employing wavelength of described DVD CD-RW discsCD-RW is the laser instrument reading of data of 635-650nm, when first, second dye coating is regeneration one deck structure, described DVD CD-RW discsCD-RW capacity is 8.4-8.5GB, perhaps when first, second dye coating was the regeneration two-layer structure, described DVD CD-RW discsCD-RW capacity was 16.8-17GB.

Compared to prior art, but DVD CD-RW discsCD-RW structure double-sided recording modes of the present invention, a DVD CD-RW discsCD-RW has the capacity of two existing DVD CD-RW discsCD-RW, and capacity surpasses CD-ROM CD-RW discsCD-RW (being about 650MB), even exceeds hard-disk capacity (about 2GB to 4GB).The classification that also can have individual layer and double-deck record to write in addition.

[description of drawings]

Fig. 1 is the synoptic diagram of prior art single face DVD CD-RW discsCD-RW;

Fig. 2 is the synoptic diagram of DVD CD-RW discsCD-RW of the present invention.

[embodiment]

See also Fig. 2; DVD CD-RW discsCD-RW structure branch of the present invention is set as upper and lower layer 2,3; wherein be provided with bonding coat 10 between this upper strata 2 and the lower floor 3; can be provided with or not be provided with first protective seam 21 on this bonding coat 10; and these first protective seam, 21 tops are provided with first reflection horizon 22; and first dye coating, 23, the first dye coatings, 23 tops are set above first reflection horizon 22 is first transparent substrates 24.This bonding coat can be provided with for 10 times or not be provided with second protective seam 31, and these second protective seam, 31 belows are provided with second reflection horizon 32, and second dye coating, 33, the second dye coatings, 33 belows are set below second reflection horizon 32 is second transparent substrates 34.Can form two-sided read/writable DVD CD-RW discsCD-RW by upper strata 2 with lower floor 3.In the present invention, the employing wavelength of described DVD CD-RW discsCD-RW is the laser instrument reading of data of 635-650nm.

First,

second dye coating

23,33 can be regeneration one deck structure, also can be the regeneration two-layer structure.

Make DVD CD-RW discsCD-RW structure of the present invention, on the mould of forming machine, load onto earlier the DVD stamper, and produce transparent resin base with manufacturing process such as injection mouldings, and then on resin base, form dye coating by spin coating proceeding, form metallic reflective coatings (reflection horizon) such as aluminium matter through method such as sputter at the signal face of resin base subsequently, be coated with in the above subsequently and form bonding coat with sticker.With make another DVD CD-RW discsCD-RW with quadrat method, then that two DVD CD-RW discsCD-RW are bonding, promptly get DVD CD-RW discsCD-RW of the present invention.Also can between reflectance coating and bonding coat, increase by a protective seam in addition.Wherein, described transparent resin base is made by polycarbonate (PC) usually, and described dye coating is made by cyanine (cyanine) or azo dyes (azo dye) usually.

Wherein adhesion process can be produced the product of different DVD forms, as can the DVD (R/W semi-manufacture) of the writable disposable DVD (DVD-R) of two 0.6mm thickness or rewritable is bonding, or a slice 0.6mm thickness DVD-R or R/W semi-manufacture and a slice DVD-5 or DVD-9 semi-manufacture is bonding.

The wherein bonding methods such as hot melt adhesive or UV curing glue that adopt are bonding.The hot melt adhesive adhering technique be with hot melt adhesive with the type of heating fusion after, in the mode of coating hot melt adhesive is applied to the back side of video disc, again two CD-RW discsCD-RW are fitted, through making two CD-RW discsCD-RW bonding after the cooling cooling.UV solidifies gluing being combined into ultraviolet cured adhesive is coated the DVD CD-RW discsCD-RW, two DVD CD-RW discsCD-RW is fitted again, and the irradiation through ultraviolet light makes the ultra-violet curing adhesive curing again.Be the DVD CD-RW discsCD-RW of DVD-R structure for the two sides, then should adopt hot melt adhesive bonding, destroy the physical property of DVD-R with the irradiation of avoiding ultraviolet light.

But DVD CD-RW discsCD-RW structure double-sided recording modes of the present invention, the capacity that one DVD CD-RW discsCD-RW has two existing DVD CD-RW discsCD-RW, capacity surpasses CD-ROM CD-RW discsCD-RW (being about 650MB), even exceed hard-disk capacity (about 2GB to 4GB), promptly for the two-sided DVD CD-RW discsCD-RW of dye coating for regeneration one deck structure, its capacity can reach 8.5GB; And for the two-sided DVD CD-RW discsCD-RW of dye coating for the regeneration two-layer structure, its capacity can reach 17GB.The classification that also can have individual layer and double-deck record to write in addition.

Although the present invention describes with reference to specific embodiment, this description and not meaning that is construed as limiting the present invention.With reference to description of the invention, other distortion of the disclosed embodiments all can be expected for those skilled in the art.Therefore, such distortion can not break away from affiliated claim restricted portion and spirit.

Claims

1. DVD CD-RW discsCD-RW, it is characterized in that, comprises the first single face DVD CD-RW discsCD-RW and the first single face DVD CD-RW discsCD-RW of combination with it.

2. DVD CD-RW discsCD-RW according to claim 1, it is characterized in that, described first and second single face DVD CD-RW discsCD-RW includes transparent substrates, dye coating and reflection horizon, is provided with bonding coat between described single face DVD CD-RW discsCD-RW, and wherein dye coating is between reflection horizon and substrate.

3. DVD CD-RW discsCD-RW according to claim 1; it is characterized in that; this DVD CD-RW discsCD-RW also comprises first, second protective seam; first protective seam is between the bonding coat and first reflection horizon; second protective seam is between the bonding coat and second reflection horizon, and described dye coating is regeneration one deck structure or regeneration two-layer structure.

4. the manufacture method of a DVD CD-RW discsCD-RW comprises the steps: two single face DVD of (1) moulding CD-RW discsCD-RW; (2) in conjunction with described two single face DVD CD-RW discsCD-RW.

5. the manufacture method of DVD CD-RW discsCD-RW according to claim 4 is characterized in that, the method for described moulding single face DVD laser disc comprises: (1) loads onto the DVD stamper on the mould of forming machine, and to be shaped transparent resin base; (2) on resin base, form dye coating; (3) signal face in resin base forms the reflection horizon.

6. the manufacture method of DVD CD-RW discsCD-RW according to claim 5 is characterized in that, the method for described moulding single face DVD laser disc also can be included in the step that forms protective seam on the reflection horizon.

7. the manufacture method of DVD CD-RW discsCD-RW according to claim 6 is characterized in that, is the methods that adopt hot melt adhesive or UV to solidify glue bond in conjunction with described two single face DVD CD-RW discsCD-RW, promptly is coated with on the reflection horizon and forms bonding coat with glue.

8. the manufacture method of DVD CD-RW discsCD-RW according to claim 7 is characterized in that, described transparent resin base adopts injection moulding, forms dye coating by spin coating proceeding, forms the reflection horizon and adopts sputtering process; Described reflection horizon is a metallic reflective coating, and described transparent resin base is made by polycarbonate (PC) usually, and described dye coating is made by cyanine (cyanine) or azo dyes (azo dye) usually.

9. the manufacture method of DVD CD-RW discsCD-RW according to claim 5 is characterized in that, described method also is included in the step that generates the regeneration two-layer structure on the dye coating.

10. DVD CD-RW discsCD-RW according to claim 8, it is characterized in that, described DVD CD-RW discsCD-RW thickness is 1.1-1.3mm, the employing wavelength of described DVD CD-RW discsCD-RW is the laser instrument reading of data of 635-650nm, when first, second dye coating is regeneration one deck structure, described DVD CD-RW discsCD-RW capacity is 8.4-8.5GB, and perhaps when first, second dye coating was the regeneration two-layer structure, described DVD CD-RW discsCD-RW capacity was 16.8-17GB.