TW200421332A - Optical recording medium and manufacturing method thereof - Google Patents

Abstract

An optical recording medium includes an optical recording substrate, an inter layer, and a hard coating layer. The inter layer and hard coating layer are located at one side of the optical recording substrate. In this case, the inter layer is positioned between the optical recording substrate and hard coating layer. Furthermore, the invention also discloses a manufacturing method of the optical recording medium.

Description

200421332

(1) [Technical field to which the invention belongs] The present invention relates to an optical recording medium and a manufacturing method thereof, and particularly to an optical recording medium having a "hard coating layer" and a manufacturing method thereof. 2.) [Previous technology] In recent years, because optical recording media can store a large amount of data, it is easy to carry and can store data for a long time, so using optical recording media to store shell materials has become increasingly popular. Storage method, its application, field, including video, music or large data. Τν.,] The most popular optical recording media include CD (Compact η · λ and digital video discs (DVD, Digital Versatile uisc) ), Fu Shihuai 丄%, and the two structures are similar, but the data storage capacity of digital audio-visual discs is moxibustion date = ⑶ shell material storage capacity. Taking Ding as an example to explain its structure, please > corpse,?, Fig. 1 Household materials + Article _ Generally speaking, optical recording medium 1 usually includes three layers of silver, etc. 6 layers are formed with holes (P 17) on the substrate 1 1 'The second layer is gold or only % Expected to form The reflective layer 13 'and the third layer are recorded by a resin-type light wind: ° is the attention' The aforementioned optical recording medium includes a recording medium, which is a substrate 11 and a reflective layer 13 A recording layer (not shown in the figure) composed of 9 dyes (Dye) is formed between them. As mentioned above, when using a reading device such as CD-Player, DVD-DVD3yer, etc. When you read the data stored in the optical recording medium 1, read the clothes of the children ψ This Φ + x S light will pass through the substrate 11 and reflected by the reflective layer 1 3 ^ 7Γ \ 1 jr in The Anchorman's Pickup Device will receive the laser light reflected by the reflective layer 1 3

200421332

Light, and reflect accordingly ~ π ... ~ _ Yinshan / u Yu 5 体 spider body, of which, on one side of the substrate u of the optical recording medium 1, one = the stored capital side. However, when the optical recording medium is transported, used, or stored, it will often cause collision and friction when it is read, which will cause wear on the optical recording medium. As a result, the reading device cannot read the optical recording medium normally; therefore, A person skilled in the art can conveniently use a spin coating method to form a hard film protective layer 17 on the reading surface of the optical film 2 (as shown in FIG. 2 in order to increase the surface hardness of the extraction surface and improve its wear resistance). y., b ^ However, the above-mentioned spin coating process is not easy to control, and in the process of forming a protective film 17, 柘 n 柘 绿 溆 # 地 仕 ^ 成 硬 ㈠η㈣ace) will produce an internal base; ^ The bonding surface with the hard + protective film 17 is not in good condition, and Litian you) and the layer 17 has uniformity f • Hard film protection method made by grain coating method ^ Media π1 ”) in a poor situation, the result will be light-dry. The subsequent mechanical properties of the recorded media 2 are nine, so how to make a bad impact on ^, especially injustice 14 1. Avoid the optical t: > edge-protection optics § The reading side of the recorded media, and it is true. = School machine and photoelectricity The object of the present invention is to provide an optical recording medium capable of effective mechanical and optoelectronic properties and (2) and [Summary of the Invention] In view of the above-mentioned problems, protection of reading Take the surface and avoid affecting its manufacturing method. The surface is formed with at least an interface layer between them.

Page 6 200421332 V. Description of the invention (3) The optical recording medium according to the present invention includes an optical recording substrate, an interface layer, and a hard coating layer. In the present invention, the interface layer and the hard film protective layer are formed on one side of the optical recording substrate; and the interface layer is located between the optical recording substrate and the hard film protective layer. The interface layer and the hard film protective layer are formed on one side of the reading surface of the optical recording medium; and the optical recording substrate includes a substrate, a reflective layer, and a protective layer. In addition, the present invention also provides a method for manufacturing an optical recording medium, including prefabricating an optical recording substrate; forming an interface layer on one side of the optical recording substrate; and forming a hard film protective layer on the interface layer. In the present invention, the interface layer is formed between the substrate and the hard film protective layer. The interface layer and the hard film protective layer may be formed by a sputtering method. As mentioned above, since the optical recording medium and the manufacturing method thereof according to the present invention have an interface layer and a hard film protective layer formed on the reading surface of the optical recording medium, the hard film protective layer can effectively protect the optical recording medium. The reading surface 'and the use of an interface layer provided between the substrate and the hard film protective layer to avoid the internal stress accumulation of the joint surface and the poor joint condition, thereby eliminating the defects caused by the mechanical and optoelectronic properties of the optical recording medium In addition, because the optical recording medium and the manufacturing method thereof according to the present invention use the money ore method to form the interface layer and the hard film protective layer, it can avoid the poor uniformity caused by the spin coating method. The problem is further improved by improving the mechanical and optoelectronic properties of the optical recording medium. (D), [Implementation]

200421332 V. Description of the invention (4) The optical recording medium and its manufacturing method according to the preferred embodiment of the present invention will be described below with reference to related drawings, in which the same components will be described with the same reference symbols. Referring to FIG. 3, the optical recording medium 3 according to the present embodiment of the hybrid vehicle includes a substrate 31, a reflective layer 33, a compliance layer 35, a hard film protective layer 37, and an interface layer 39. In this embodiment, a plurality of holes 3 11 are formed on one side of the substrate 31; in general, a person skilled in the art first creates a stamper corresponding to the substrate 31 and uses injection A molding method is used to form the substrate 31 in accordance with the master. The reflective layer 3 3 and the protective layer 3 5 are sequentially formed on one side of the substrate 3 1 having the holes 3 1 1, as shown in the figure. In this embodiment, the reflective layer 3 3 may be formed of a gold or silver metal material 'and the protective layer 3 5 is generally formed of a resin. It should be noted that the substrate 31, the reflective layer 33, and the protective layer 35 constitute an optical recording substrate as defined above, which may be a conventional optical recording medium such as CD or DVD It 0 ° As shown in FIG. 3, the interface layer 39 and The hard film protective layer 37 is sequentially formed on the other side of the substrate 3 1 having the holes 3 1 1. In this embodiment, the interface layer 3 g and the hard film protective layer 37 are formed by sputtering, and the interface layer 3 9 is formed between the substrate 31 and the hard film protective layer 37. It is formed of a material that is stably bonded to the substrate 31 and the hard film protective layer 37. For example, it is epoxy resin, containing: two daggers: objects, oxide stones. In the case of poor internal stress accumulation and joint conditions; the other film retaining layer 3 7 series can provide increased surface hardness and wear resistance

200421332 V. The substances described in (5) of the invention are, for example, organic compounds, thermofusibie n, epoxy resin, silicon dioxide, aluminum oxide, and the like. It should be noted that since the two-face layer 39 and the hard film protective layer 37 are formed on the reading interface layer 39 and the hard film protective layer 37 of the optical recording medium 3, the reading device 2 & laser light must pass through smoothly. The substance is sufficient for the reading device to read the data stored in the optical recording medium 3. In addition, "Please refer to Fig. 4" according to another comparative recording medium 4 of the present invention, which includes a substrate 31, a reflective layer 33, a j-hard film protective layer 37, a buffer layer 38, and an interface layer 3g. ^ The components of the optical recording medium 4 described above are not explained here. In this embodiment, the buffer layer 38 is formed between the hard film protective layer 37 to buffer or absorb the application; External force on the body 4 and the possible internal recording medium: The buffer layer 38 in the medium is also formed by sputtering, and the material can be two-theta organic polymer, waxe, rubber ( rubb ^ Ji you 疋 etc. ^ For those who need to pay attention to the vaporization decoration, in addition to the CD or DVD of the optical recording medium according to the present invention, it can also be a recordable optical recording medium; R, CD-RW, DVD-R Or DVD-RW; for example, as shown in FIG. 5 (3), an optical recording medium 5 according to another preferred embodiment includes a 32, a reflective layer 33, a protective layer 35, a hard-layer soil-retaining protective layer π, according to the present invention. ,-A two-layer layer 38 and an interface layer 39. In this embodiment, the recording layer 3, = factory includes organic matter, such as? 1 ^ 1 ^ 10 (: port 111116, .Ge 1 2 shell, ， 可 （AZ〇compounds）, and this organic matter is subjected to laser light: 200421332 V. Description of the invention (6) In order to make the content of the present invention easier to understand The following will be given-two examples of the manufacturing method of the optical recording medium according to the preferred embodiment of the present invention. The flow will cause structural changes due to the high temperature generated by the laser light focusing in order to write data. In addition, the recording layer 32 is located between the substrate 31 and the reflective layer 33. Its material may include a metal, such as Ge-Sb-Te, or Ag-In-Sb-T e. After the laser light of the reading device is irradiated, a phase change occurs due to the high temperature generated by the laser light focusing, and data is written accordingly. In addition, the optical recording medium according to the present invention is a double-layered DVD, One layer of DVD-R or DVD-RW. The plate shape product that can be entered into a CD knot is required to record the structure of the CD structure, or the layer on the side of the layer. In Cheng Jie, and then π π b No, according to the preferred embodiment of the present invention, the light iron method 6 includes steps 60 and 604. First, the step fini γ is recorded to the recorder, t ^ Ό υ 1 is a pre-fJ switch. In this embodiment, optical recording The substrate can be called top one; one R, CD-RW, DVD, DVD-R or DVD-RW, etc.疋 The conventional structure usually has a substrate, a reflective layer, and a canned recording medium. ^ A rewritable optical recording medium structure, | 1 layer, if it is, a recording layer is formed. In step 602, an interface layer is formed in "<. As mentioned above, this step is to layer and optically record the interface; ^ One side of the board is made of a material that is stable with the substrate = optical In this embodiment, when the interface layer is an object surface layer that is bonded by sputtering, it will not be formed between the substrate and the interface layer, so the bonding condition is not good. After the internal stress is generated, the step 603 is to form a γ v __ and Ge Chong layer on the interface layer. In this ^ light

Page 10 200421332 V. Description of the invention (7) In the example, the buffer layer is formed by sputtering, so when the buffer layer is formed, no internal stress build-up occurs between the interface layer and the buffer layer. Finally, as shown in step 604, a hard film protective layer is formed on the buffer layer. In this embodiment, the material of the hard coat protection layer may be any conventional hard coat protection layer material; moreover, this step is to form a hard coat protection layer by a sputtering method. Therefore, when forming the hard coat protection layer, There is no accumulation of internal stress between the hard film protective layer and the buffer layer. It should be noted that the above-mentioned step 603 may be a selective implementer, that is, it is not necessary to form a buffer between the interface layer and the hard film protective layer, and a hard film protective layer is directly formed on the interface layer. % In summary, according to the present invention, since the recording medium and the direct method are formed on the reading surface of the optical recording medium, the k-layers are formed on the reading surface of the optical recording medium, so the hard film protective layer can be used; Reading surface protected by hard film; In addition, according to the light wind of the present invention, the “preservative thin optical recording medium” uses the sputtering method on the substrate and the hard film recording medium and its manufacturing method to avoid the internal stress accumulation and joint state of the joint surface. An interface layer is formed between the, and = to take advantage of the uniformity caused by the spin coating method, and to avoid problems with the mechanical and optoelectronic handles of the optical recording medium, and to eliminate the problems described above. Only, sex, not ;; = good 'ring., The spirit and stem of the present invention, and it should be included in the scope of patents attached without departing from the scope of the patent application attached.

Page 11 200421332 Schematic description (five), [Schematic description] Figure 1 is a schematic diagram showing a conventional optical recording medium; Figure 2 is a schematic diagram showing another conventional optical recording medium; 3 is a schematic diagram showing a schematic diagram of an optical recording medium according to a preferred embodiment of the present invention; FIG. 4 is a schematic diagram showing a schematic diagram of an optical recording medium according to another preferred embodiment of the present invention, which further has a buffer layer 5 is a schematic diagram showing a schematic diagram of an optical recording medium according to another preferred embodiment of the present invention, which further has a recording layer; and FIG. 6 is a flowchart showing an optical recording according to a preferred embodiment of the present invention Process of media manufacturing method. Description of component symbols: 1 Optical recording medium 11 Substrate 13 Reflective layer 15 Protective layer 17 Hard film protective layer 2 Optical recording medium 3 Optical recording medium 31 Substrate 31 1 Hole 3 2 Recording layer

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Brief description of the drawings 33 Reflective layer 35 Protective layer 37 Hard film protective layer 38 Buffer layer 39 Interface layer 4 Optical recording medium 5 Optical recording medium 6 Manufacturing method of optical recording medium 6 (H ~ 604 Process flow of manufacturing method of optical recording medium

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Claims (1)

200421332 6. Application Patent Scope 1. An optical recording medium including: an optical recording substrate; a hard coating layer formed on one side of the substrate; and an interface layer formed on Between the optical recording substrate and the hard film protective layer. No. 2, as described in the scope of the patent application of the optical recording medium, wherein the recording substrate includes: ~ a substrate, the hard film protective layer and the interface layer are located on the side of the substrate. A protective layer (protective layer), which is formed on one side of the substrate; and a reflective layer, which is formed between the substrate and the protective layer. 3. The optical recording medium according to item 2 of the scope of the patent application, wherein the parental recording substrate further includes: 'a a recording layer' which is formed between the substrate and the reflective layer. 4. The optical recording medium according to item 1 of the scope of patent application, wherein the interface layer is formed by sputtering. 5. The optical recording medium according to item 丨 of the patent application scope, wherein the hard film protective layer is formed by sputtering. II m Page 14 200421332 6. Scope of patent application 6. The optical recording medium described in item 1 of the scope of patent application further includes: a buffer layer formed between the interface layer and the hard film protective layer. 7. The optical recording medium according to item 6 of the scope of patent application, wherein the buffer layer is formed by sputtering. 8. The optical recording medium described in item 1 of the scope of patent application is a CD. 9. The optical recording medium described in item 1 of the scope of patent application is a digital audiovisual disc (DVD). 10. An optical recording medium manufacturing method, comprising: prefabricating an optical recording substrate; forming an interface layer on one side of the optical recording substrate; and forming a hard film protective layer on the side of the optical recording substrate, the interface layer A system is formed between the optical recording substrate and the hard film protective layer. Π. The method for manufacturing an optical recording medium as described in Item 10 of the scope of patent application, wherein the optical recording substrate includes: a substrate, the hard film protective layer and the interface layer are formed on one side of the substrate; a protective layer Is formed on the other side of the substrate; and a reflective layer is formed between the substrate and the protective layer. Page 15 200421332 VI. Patent Application Range 1 2. The method of manufacturing an optical recording medium as described in item 11 of the patent application range, wherein the optical recording substrate further includes: a recording layer formed on the substrate and the reflection Between layers. 13. The method for manufacturing an optical recording medium as described in item 10 of the scope of patent application, wherein the interface layer is formed by sputtering. 14. The method for manufacturing an optical recording medium according to item 10 of the scope of patent application, wherein the hard film protective layer is formed by sputtering. 15. The method for manufacturing an optical recording medium according to item 10 of the scope of patent application, further comprising: forming a buffer layer on the side of the optical recording substrate, the buffer layer being formed on the interface layer and the hard film protection Between layers. 16. The method for manufacturing an optical recording medium according to item 15 of the scope of patent application, wherein the buffer layer is formed by sputtering. Page 16