TWI252481B - Compound disc and manufacturing method thereof - Google Patents

Abstract

A compound disc includes a first substrate and a second substrate. In this case, the first substrate has a first surface and a second surface, wherein the first surface has a groove structure of blue-ray disc and deposits a first semi-reflecting layer as well as a first recording layer. The first semi-reflecting layer is formed on the first surface while the first recording layer is formed on the first semi-reflecting layer. The second layer has a groove structure of digital versatile disc and deposits a second semi-reflecting layer. The second substrate has a third surface and a forth surface, and then the third surface is bonded to the second semi-reflecting layer of the second surface. The forth surface has a groove structure of compact disc and deposits a reflection layer. Furthermore, this invention also discloses a manufacturing method of the mentioned compound disc.

Description

1252481 V. INSTRUCTION DESCRIPTION (1) (I) Technical Field of the Invention The present invention relates to a composite optical disc and a method of manufacturing the same, and more particularly to a composite having a double-sided § recording layer and a single-sided recording A composite optical disc of a substrate of a layer and a method of manufacturing the same. In modern times, optical disc recording media has been widely used as a storage material, and as the demand for data storage capacity is increasing, crosstalk should also develop optical disc recording media with high storage capacity, such as digital cinema. Discs (DVD, Digital Versatile Disc), and higher-capacity Blu-ray discs (BD, BlUe-ray Disc), etc., by high-density recording = two ^^. Storage capacity is more common than the optical disc (10), optical:: ί: ίί different rules, so there should be different recording media rules will correspond to different wavelengths of two pounds: 'different optical disc focus distance for reading data Write, m and use a different 40 〇 old, focusing distance 〇imm JJ 茱 1 as an example, is to read and write in the wavelength line, and the digital will stand _ Tian # light 12 through the lens 11 into the 650 (10), focus distance The optical disc 3 has a wavelength of 278 〇 nm, a focus distance of the heart = light 22 passes through the lens 21 and correspondingly a shorter wave plate has a smaller groove specification, and the optical disc 3 and a plurality of the blue optical discs I A library with a higher density of 1252481 V. Invention Description (2). Therefore, the compatibility of the optical disc reading and writing system of different specifications is increased, and the film is a compact optical disc which is accommodated in the optical reading and writing system of the CD and the DVD, and is finished by the collimating piece and the CD piece. The blush f first uses different molds for different recording specifications: 3 plates are used to form CD and dvd substrates by injection molding technology, and then the umbrella is sputtered with a metal reflective layer for reflecting the disc reading and writing layer. Phase: Oblique eye ^ to read the data, and finally (3) and dvd reflection two, swearing, s to form the above CD / DVD composite disc, due to this rule (two), the door can be - film disc According to the different optical discs, there are optical discs with different specifications on the market. Although there are already composite discs of CD and DVD, the rapid development of the two media has continuously improved the data recording density disc = only for disc recording media. The inevitable trend of development, therefore, how to predict =: a composite optical disc with high compatibility with various optical reading and writing equipment systems and a larger storage capacity, which is one of the important topics for recording media. Month J fluorine as the first dish [ ), SUMMARY OF THE INVENTION In view of the above problems, the present inventory and manufacturing method for the optical disc and different optical read. Ming object is to provide a writing apparatus having a high storage system which is compatible composite high

1252481 V. DESCRIPTION OF THE INVENTION (3) In order to achieve the above object, a composite optical disc according to the present invention comprises a first substrate and a second substrate. The first substrate has a first surface and a second surface, wherein the first surface has a trench structure of a Blu-ray disc format, and is provided with a first semi-reflective layer and a first recording layer, the first semi-reflective layer Formed on the first surface, the first recording layer is formed on the first semi-reflective layer, and the second surface has a groove structure of a digital video disc format, and is provided with a second semi-reflective layer; the second substrate The system has a third surface and a fourth surface, the third surface is attached to the second semi-reflective layer of the second surface, and the fourth surface has a disc-shaped groove structure and is provided with a total reflection. A first substrate is formed as well as a protective layer. The invention also provides a type program and a forming program. A composite optical disc manufacturing method comprises a second substrate forming program, a bonding program, a first substrate forming program, a double-sided groove, and a fourth surface of the surface-surface mold on the semi-reflective upper surface of the optical disc. The surface is protected by a surface. Forming a blue-first surface, the second surface is a single-substrate, and after the first one, using a double-sided substrate, the structure is formed in the groove of the first substrate, and a number is formed according to the layer and the first Forming a second half, forming a top surface and a first layer forming a surface to form a full two surface into a recording layer, a sound and light disc reflecting layer; the first having a single surface groove forming a light reflecting layer; The second half reverses the injection of a protective layer mold to form a first surface on the first surface and in the first substrate type of the structure of the substrate. The layer is laminated to form one of the first table 1 having an exit shape, and is in the order of the first structure, the first structure, a substrate, and the most

1252481 V. Description of the invention (4) Completed on a recording layer. According to the above-mentioned "issuance of the hairpin and the installation of a single-sided groove rail, the 孓忐 孓忐 孓忐 系 由 由 由 由 由 由 由 由 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' Improve the recording groove structure of the different formats of the current 酉 己, see the compatibility of ~7 different optical reading and writing devices. (4) [Embodiment] Hereinafter, a description will be given of a composite optical disc according to a preferred embodiment of the present invention and a manufacturing symbol thereof according to a preferred embodiment of the present invention. The same components in ',, will be referred to the same reference, as shown in Figure 2, the package 4 includes a first substrate 41 ^ 4, the composite disc plate 41 has a - surface - 41; The second base 421 and the eleventh f/412' second substrate 42 have a second surface 412 facing the first-thickness, the first substrate 41 of the first substrate 41 The third surface 421 of the coin-substrate 4 2 is bonded. Further, as shown in FIG. 3, in the embodiment, the first substrate 41 is a: a groove track: a substrate. Here, the first surface 411 of the first substrate 41 is a groove structure having a Blu-ray disc format. And a first semi-reflective layer 414 and a first recording layer 413 are formed thereon. The first semi-reflective layer 414 is formed on the first surface 411, and the first recording layer 413 is formed on the first-semi-reflective layer 414. The second surface 412 is a trench structure having a digital audio and video disc type, and is provided with a second semi-reflective layer 4 15 . It should be noted that the semi-reflective layer is arranged to allow the laser light to be partially Penetrating to read and write the recording layers of different layers. 'The second substrate 42 is a single-sided groove track.

Page 9 1252481 V. Description of the Invention (5) The substrate 'ditch is formed on the fourth surface 422 of the second substrate 42 and has a groove structure in a disc format, and a total reflection layer 423 is disposed thereon. The third surface 421 of the second substrate 42 is bonded to the second semi-reflective layer 4 15 of the second surface 412 to form the composite optical disc 4 . As shown in FIG. 4, in another embodiment, the components of the first substrate 41 and the second substrate 42 are as described above, and therefore are not described again, wherein the second surface 412 of the first substrate 41 is omitted. The second recording layer 416 may be further formed between the second surface 412 and the second semi-reflective layer 415; in addition, the fourth surface 422 of the second substrate 42 may further include a The third recording layer 424 is formed between the fourth surface 422 and the total reflection layer 4 2 3 . In combination, in the composition of the composite optical disc 4, the second surface 412 may be a data recording method for pre-grooving to form a DVD-ROM (as shown by reference numeral 4 1 2 in FIG. 3) or may further include a record. The layer forms a data recording mode of the DVD-R or DVD-RW (as indicated by reference numeral 4 16 in FIG. 4), and the fourth surface 4 22 may also be pre-grooved to form (:1)_1??1^ The data recording mode (shown as reference numeral 4 2 2 in FIG. 3) or the data recording method of recording a reed into a DVD-R or a DVD-RW (shown by reference numeral 424 in FIG. 4), thereby three layers Different data recording formats and composite optical discs that can be combined with different recording methods will increase the data storage capacity and make the composite optical discs more compatible with different specifications === storage devices. Sex. Further, the first recording layer 413, the second recording layer 416 and the third recording layer 428 may comprise at least one of an organic dye and a metal substance, and the organic dye is irradiated by laser light. After the cracking occurs, the formation

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Page 10 1252481

V. Description of invention (6) Discs that are written once (eg BD-R, CD-R, DVD-R, etc.), while metal substances are phase-changed after exposure to laser light, forming a re-writeable Into the disc (such as: BD-RW, CD-RW and DVD-RW, etc.). In the present embodiment, as shown in FIG. 5, the thickness of the first substrate 41 is 0·5 mm, and the thickness of the second substrate 42 is 0·6 mm, which is formed after the bonding. The optical disc 4, in addition, depending on the diameter thereof, can form a composite optical disc having a diameter of about or about 12 cm (indicated by reference numeral 4 and reference numeral 4, respectively), in this embodiment. The composite optical disc 4 further includes a protective layer 43 formed on the first surface 411 of the first substrate 41 and the thickness of the protective layer 43 is about O.lmni. The thickness of the composite optical discs 4 and 4 formed by the second substrate 42 and the protective layer 43 is about 1.2 mm. >'

Hereinafter, a method of manufacturing a composite optical disc according to a preferred embodiment of the present invention will be specifically described with reference to Fig. 6. Referring to FIG. 6 , the composite optical disk device according to the present invention includes a first substrate molding program P01, a second substrate forming program p 〇1, a bonding program P02, and A protective layer forming program? 〇 3. Referring to FIG. 7, in the embodiment, the first substrate molding P01 is formed by using a double-sided mold to form a first base having a double-sided groove, 41, on a first surface 411 of the first substrate 41. Forming a trench track structure forming a blue light disc format, and sequentially forming a first: semi-reflective layer 414 and a first recording layer 41 3 on the first surface 41, and on the first substrate a surface 412 is formed to form a groove track structure of a digital video disk format and a second semi-reflective layer is formed on the second surface 412; the second base

Page 11 1252481 V. INSTRUCTION DESCRIPTION (7) The board forming program p ' 〇 1 is formed by using a single-sided mold to form a second substrate 42 having a single-sided groove track on a fourth surface 422 of the second substrate 42. Ejecting a trench structure forming a disc format, and forming a total reflection layer 423 on the fourth surface 42 2; the bonding program P02 is a second surface 421 of the second substrate 42 and a second surface 412 The semi-reflective layer 415 is bonded by a UV-curable sol; finally, a protective layer 43 is formed on the first recording layer of the first surface 411 by a spin coating method or a sheet bonding method via a protective layer forming program P 〇3. The composite optical disc 4 is completed on 413.

In addition, referring to FIG. 8 , in another embodiment, the first substrate molding program P01 further includes a step of forming a second recording layer 416 on the second surface 412 , and the second recording layer 416 is formed on the first surface. Between the two surfaces 412 and the second semi-reflective layer 4 15 , in addition, in the second substrate molding process p, the 更 may further comprise a step of forming a third recording layer 424 on the fourth surface 422, and the second redundancy The recording layer 424 is formed between the fourth surface 422 and the total reflection layer 423. Here, the first recording layer 413, the second recording layer 丨6, and the third recording layer 428 may be It is an organic dye recording layer or a phase change recording layer', and forms a recording method that can be written once and repeatedly written. In the present embodiment, referring to FIG. 7 and FIG. 8, the second surface 41 2 may be selected as a pre-groove. In this case, the manufacturing method is performed after the substrate is formed in different trench patterns. The semi-reflective layer (shown as reference numeral 4丨5 in Fig. 7) completes the substrate forming process, or alternatively, the method of recording the poor material by using an organic dye or a metal substance, at this time, in the manufacturing process, After different grooves, the substrate of the format is formed, the step of sputtering the organic dye recording layer or the phase change recording layer is added, and then the recording layer (as shown in FIG. 8)

Page 12 1252482 V. Description of the Invention (8) 416) Sputtering a semi-reflective layer (as indicated by reference numeral 415 in FIG. 8). Similarly, the fourth surface 4 2 2 is also like the second surface 4 1 2 As described, the pre-groove (as shown in FIG. 7) or the organic dye s recording layer or the phase change recording layer (as shown in FIG. 8) may be added to form different data recording modes, and the reflective layer is The choice of different reflection coefficient materials and forming procedures is determined by the recording layer of the optical pickup relative to the different thickness positions of the optical disc. As described above, the first substrate 41 is formed by a double-sided mold using a thin-shell injection technique to form a substrate having a double-sided groove and having a thickness of about 〇·5 mm, and the second substrate 4 2 is emitted by a single-sided mold. A substrate having a single-sided groove track and having a thickness of 〇-6 mm is formed. Further, the thickness of the protective layer 43 is about 〇1 dragon. In summary, the composite optical disc according to the present invention and the manufacturer thereof combine a substrate having a double-sided groove and a single-sided groove track.

And the composite optical disc includes a basket optical disc (BD) recording format and a digital audio disc (DV two-disc (CD) recording format) from the top to the bottom of the optical reading head. The composite optical disc composed of the groove, the organic dye recording layer or the phase change recording layer effectively increases the data force, and the composite optical disc can have different notes at the same time: quantity, plus compound The type of optical disc is used in different specifications and functions. The compatibility of the disc is added. The above description of the poor material reading and writing device is merely illustrative, and is not intended to limit the spirit and scope of the present invention. Equivalent repairs carried out: ^ Not detached shall be included in the scope of the patent application attached. Less S, less owing, both

Page 13 1252481 Brief description of the diagram (5), [Simple description of the diagram] Figure 1 is a schematic diagram showing the conventional read and write system of different specifications of the optical disc; Figure 2 is a schematic diagram showing FIG. 3 is a schematic view showing the structure of a composite optical disc according to a preferred embodiment of the present invention. FIG. 4 is a schematic view showing the structure of the composite optical disc according to the preferred embodiment of the present invention. FIG. 5 is a schematic view showing the composition thickness of a composite optical disc according to a preferred embodiment of the present invention; FIG. 6 is a schematic view showing the structure of the composite optical disc according to a preferred embodiment of the present invention; FIG. 7 is a schematic view showing a method of manufacturing a composite optical disc according to a preferred embodiment of the present invention; FIG. 8 is a schematic view showing a schematic view of a composite optical disc manufacturing method according to a preferred embodiment of the present invention; A schematic diagram of a method of fabricating a composite optical disc according to another preferred embodiment of the invention. Component symbol description: 1 Blu-ray disc 11 lens 12 laser light 2 digital audio and video disc 21 lens

Page 14 1252481 Brief description of the diagram 22 Laser light 3 Optical disc 31 Lens 32 Laser light 4 Composite optical disc 41 First substrate 411 First surface 412 Second surface 413 First recording layer 414 First reflective layer 415 Second Semi-reflective layer 416 second recording layer 42 second substrate 421 second surface 422 fourth surface 423 total reflection layer 424 second recording layer 43 protective layer 4, composite optical disk P01 first substrate molding program P' 01 second substrate Molding program P02 Fitting program P03 Protective layer forming program

Page 15

Claims (1)

1252481 VI. Application for Patent Range 1. A composite optical disc containing: a first substrate having a first surface and a second surface, the first surface having a trench structure of a Blu-ray disc format, and a first recording layer and a first semi-reflective layer, the first substrate a semi-reflective layer is formed on the first surface, the first recording layer is formed on the first semi-reflective layer, the second surface has a groove structure of a digital video disc format, and is provided with a second a semi-reflective layer; and a second substrate having a third surface and a fourth surface, the third surface being attached to the second semi-reflective layer of the second surface, the fourth surface having a disc The groove structure of the format is provided with a total reflection layer. 2. The composite optical disc of claim 1, further comprising: a protective layer formed on the first recording layer of the first surface. 3. The composite optical disc of claim 2, wherein the protective layer has a thickness of about 0.1 mm. 4. The composite optical disc of claim 1, wherein the thickness of the first substrate is about 0.5 m. 5. The composite optical disc of claim 1, wherein the thickness of the second substrate is about 0.6 m. The invention relates to a composite optical disc according to claim 1, wherein the second surface of the first substrate further comprises a second recording layer, and the second recording layer is formed. Between the second surface and the second semi-reflective layer. 7. The composite optical disc of claim 1, wherein the fourth surface of the second substrate further comprises a third recording layer formed on the fourth surface and the total reflection Between the layers. 8. The composite optical disc of claim 6, wherein the first recording layer and the second recording layer comprise at least one of an organic dye and a metallic substance. 9. The composite optical disc of claim 7, wherein the first recording layer and the third recording layer comprise at least one of an organic dye and a metallic substance. 10, a composite optical disc manufacturing method, comprising: a first substrate molding process, which uses a double-sided mold to form a first substrate having a double-sided groove track, and emits a trench structure on a first surface of the first substrate to form a Blu-ray disk format, and Forming a first semi-reflective layer and a first recording layer on the first surface, and forming a groove track structure forming a digital audio and video disc format on the second surface of the first substrate, and Forming a second semi-reflective layer on the surface; a second substrate forming process, which is formed by using a single-sided mold to form a Page 171252481 6. The second substrate in which the patent application scope has a single-sided groove is formed on a fourth surface of one of the second substrates to form a groove track structure formed in a disc format, and a full surface is formed on the fourth surface. a coating process for bonding a third surface of the second substrate to the second semi-reflective layer of the second surface; and a protective layer forming process for forming a protective layer The first surface is on the first recording layer. The thickness of the first substrate is about 0.5 mm. The method of manufacturing the composite optical disc according to claim 10, wherein the thickness of the first substrate is about 0.5 mm. The thickness of the second substrate is about 0.6 mm. The method of manufacturing the composite optical disc according to claim 10, wherein the thickness of the second substrate is about 0.6 mm. The thickness of the protective layer is about 0.1 mm, as described in the above. The method of manufacturing a composite optical disc according to claim 10, wherein the bonding procedure is performed by using an ultraviolet curable sol. The method of manufacturing a composite optical disc according to claim 10, wherein the second surface further comprises a second recording layer formed on the second surface and the second Between semi-reflective layers. </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; Between the fourth surface and the total reflection layer. The composite optical disc manufacturing method according to claim 15, wherein the first recording layer and the second recording layer comprise at least one of an organic dye and a metal substance. The composite optical disc manufacturing method according to claim 16, wherein the first recording layer and the third recording layer comprise at least one of an organic dye and a metal substance. The composite optical disc manufacturing method according to claim 10, wherein the protective layer is formed on the first recording layer of the first surface by spin coating. 20 0. The composite optical disc manufacturer as described in claim 10 of the patent application scope The method wherein the protective layer is formed on the first recording layer of the first surface by means of a sheet bonding. Page 19