TWI379298B - Color optical disk and method for manufacturing the same - Google Patents

Description

IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to an optical disk sheet and, more particularly, to a colored optical disk. [Prior Art] Currently, common optical discs can be mainly divided into two major categories: CD (compactDisc) and DVD (Digital Versatile Disc). These two categories each contain a wide variety of optical storage media, such as Audio CDs, CD-ROMs, CD-Rs, CD-RWs. ), music dvd (editing), CD-ROM (DVDROM), recordable DVD (DVD+R), rewritable DVD (DVD+RW), etc. Optical discs are easy to use and store a lot of information, so they have a very big market. Today's consumer demand for optical discs is very popular except for the quality of the ^^ ® @ color. ―一一一-______— 【Abstract 】 κ 古 出 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本Body; and the above-mentioned colored 朦 too invented: to change the color of the disc. This embodiment of the present invention proposes an embodiment of a plurality of colored optical discs. The colored optical disc described above comprises a colorless substrate and a colored layer. The colored layer is formed by the above colored colloid of the present invention to change the color of the optical disk. According to an embodiment of the present invention, a colored optical disc comprises a colorless substrate, a recording layer, a reflective layer and a colored protective adhesive layer in order from bottom to top. A colored optical disk according to another embodiment of the present invention comprises, in order from bottom to top, a colorless substrate, a recording layer, a reflective layer, a protective adhesive layer, and a colored scratch-resistant layer. According to still another embodiment of the present invention, a colored optical disk comprises a colorless substrate, a recording layer, a reflective layer, a colored protective adhesive layer, a glue layer, and a colorless cover plate in order from bottom to top. A colored optical disk according to another embodiment of the present invention comprises, in order from bottom to top, a colorless substrate, a recording layer, a reflective layer, a colored bonding layer, and a colorless cover. [Embodiment] ~~------------------ In order to make the light spiral sheet have different colors, the conventional technology is to mix the color master into the substrate or cover of the optical disc. The plastic knee material of the board, such as polycarbonate (PC), is further formed into a colored substrate or a colored cover plate for the purpose of changing the color of the optical disc. 1 is a cross-sectional view showing a conventional colored CD disc 100. Referring to Fig. 1, a conventional method for producing a colored CD disc 100 is to re-pump a transparent PC material into a color master to form a colored pc material, and to form a colored substrate 101 by injection molding. Thereafter, the recording layer 103, the reflective layer 1〇5, and the protective adhesive 1379298 layer 107' are sequentially formed on the color substrate by a standard process to obtain a conventional colored CD disc 100. Similarly, the conventional method for producing a colored DVD disc 2 is to form the colored cover plate 1U by injection molding, and sequentially form the recording layer 103 and the reflective layer on the colorless substrate 102 by a standard process. 105. The protective adhesive layer 107 and the glue layer 1〇9 are used to obtain the conventional colored DVD disc 200 by using the glue layer 1〇9 and then the colored cover plate 111'. However, when the colored pc material is formed according to the above conventional method, the chromatic aberration is easily caused by the uneven ratio of the mixed σ, and the original characteristics of the pc material may be destroyed or changed after re-pulping, for example, the molded pc substrate becomes brittle and difficult. Demoulding. On the other hand, the color of the colored Pc substrate/cover is much higher than that of the colorless and transparent PC substrate/cover, making it difficult for the organic dye recording layer to spread evenly on the disc, affecting product appearance and product yield. . In addition, the processing cost of the colored PC material is high, and the material usually accounts for about 90% of the entire optical disc, which makes the production cost high. White. The method of making colored discs is to mix the masterbatch into the father.

The discoloration is repeated by applying the organic dye to the disc, so that the solubility of the masterbatch is different from that of the original organic dye by the color of the disc, and crystallization is easily caused, resulting in abnormal quality. In addition, ^ mother will interfere with the recording function of the original organic dye, resulting in product quality is often;; is the use of photosensitive color masterbatch, more easy to fade, short life and other issues.磾 磾 ' ' 'Related 4 need a novel "can improve the yield of colored discs and drop 々 7 Blending with the protective adhesive layer material, the bonding adhesive layer material or the anti-layer material to form a colored colloid; and coating the colored colloid on a disc to change the color of the optical disc. According to the above aspect of the invention, the following is presented Various embodiments are invented to clarify how to make various different types of colored optical discs by the above-described methods. It should be understood that the same or both of the same elements in the following descriptions represent the same or similar elements or steps.

Referring to FIGS. 3A and 3B, FIG. 3A is a flow chart showing the manufacture of a colored CD disc 300 according to an embodiment of the present invention; and FIG. 3B is a diagram showing the color produced according to the method shown in FIG. 3A. A cross-sectional view of the disc 3〇〇. According to this embodiment, at step 320, no PC is formed using an injection molding process. At step 322, the spin-coated or splashed material may be a plastic, for example, a recording layer 304 is formed thereon, wherein the material of the recording layer 304 may be an organic dye or an inorganic material. In step 324, a sputtering process is used in the recording layer 3 A reflective layer 306 is formed over 4, wherein the material of the reflective layer 306 can be gold, silver, aluminum, or copper. At step 326, the masterbatch is mixed with the layer of protective layer to form a colored gel and applied over the reflective layer 306 to form a colored protective layer 308. The protective adhesive layer material may be a curable resin such as an ultraviolet curable resin, a visible light curable resin, a thermosetting resin, or the like. Therefore, as shown in Fig. 3B, the structure of the colored CD disc 300 of the present embodiment includes the colorless substrate 302, the recording layer 304, the reflective layer 306, and the colored protective layer 3〇8 from bottom to top. According to this embodiment, the colored cd light spiral 300 utilizes the color exhibited by the colored protective adhesive layer 308 to change its appearance color. Referring to FIG. 4A and FIG. 4B, FIG. 4A is a flow chart showing the manufacture of a colored CD disc 400 according to another embodiment of the present invention; and FIG. 4B is a view showing the method according to FIG. 4A. A cross-sectional view of a colored CD disc 400. It should be understood that in the present embodiment, steps 420, 422, and 424 are substantially similar to steps 320, 322, and 324 described in the first embodiment, and therefore will not be described in detail. Similarly, the similar materials used in the present embodiment and the above embodiments will not be described again. This embodiment differs from the first embodiment in that a color master is added to the scratch-resistant layer material and applied to the underside of the colorless substrate 4〇2 (that is, the surface opposite to the recording layer 404) to form (Step 422), instead of forming a colored protective adhesive layer 3〇8 as in the first embodiment. The scratch-resistant layer 410 material may be a hard film (hard c〇a〇 material. Further, in step 425', a general protective adhesive layer material is applied onto the reflective layer 406 by a spin coating process to form a protective adhesive layer 409. As shown in FIG. 4B, the structure of the colored CD disc 4 of the present embodiment sequentially includes a colored anti-layer 41, a colorless substrate 4, a recording layer 404, a reflective layer 406, and a protective adhesive from bottom to top. The layer 4〇9. According to the embodiment, the 1379298 colored CD disc 400 changes the appearance color by using the color of the colored anti-layer 41. The third embodiment simultaneously refers to the 5A and 5B, 5A. A flow chart of manufacturing a colored DVD disc 5 according to an embodiment of the present invention; and FIG. 5B is a cross-sectional view showing a colored DVD disc 500 manufactured according to the method shown in FIG. 5A. It should be understood that In the embodiment, the steps 52 〇 522 and 524 are substantially similar to the steps 32 〇, 322, and 324 described in the first embodiment, and therefore will not be described in detail. However, when the colored dvd optical disc 500 is manufactured according to the method of the embodiment, , its process parameters (such as substrate thickness And the like, which may be adjusted as needed, and are not necessarily the same as those in the first embodiment. In addition, the similar materials used in the present embodiment and the above embodiments are not described again. The parent material is added to the glue layer material to form a colored colloid, and the layered material applied to the reflective layer 5〇6 may be a hanging bonding gel. Further, in step 529, the molding process is formed to form a colorless cover plate. 514, and by the color glue layer 512 followed by the colorless cover 514 and the reverse (four) 5. The material of the cover plate may be a plastic such as pc. In addition, this embodiment does not form a colored protective kick layer as in the first embodiment. As shown in FIG. 5B, the structure of the colored dvd well κ 5〇0 of the present embodiment includes a colorless substrate 502, a recording layer 504, a reflective layer 5〇6 colored knee layer 512, and a colorless cover 514 in order from bottom to top. According to the embodiment of the present invention, the colored DVD disc 500 is changed in color by the color presented by the colored glue layer 512.

6A and 6B, FIG. 6A is a flow chart showing the manufacture of a colored DVD disc 6 in accordance with an embodiment of the present invention; and a colored DVD manufactured according to the method shown in FIG. 6A. A cross-sectional view of the disc 6〇〇. It should be understood that in the present embodiment, steps 62, 622, and 629 are substantially similar to steps 52, 522, 524, and 529 described in the third embodiment, and therefore will not be described in detail. Similar materials used in the examples and the above embodiments are not described again. The difference between this embodiment and the third embodiment is mainly that, according to the embodiment, the color masterbatch and the protective adhesive layer material are mixed to form a colored colloid, and is coated on the reflective layer 606 to form a colored protective adhesive layer 6〇8. (Step 626). The above step 626 is similar to step 326 described in the first embodiment. In addition, the use of spin

A glue layer 613 is formed on the colored protective adhesive layer 608 (step 628), and the colorless cover 614 is followed by the glue layer 613. Therefore, as shown in FIG. 6B, the structure of the colored DVD disc 600 of the present embodiment includes the colorless substrate 6〇2, the recording layer 6〇4, the reflective layer 606, the colored protective adhesive layer 608, and the glue layer from bottom to top. 613 and colorless cover 614. According to the present embodiment, the colored DVD disc 600 utilizes the color exhibited by the colored protective layer 608 to change its appearance color. While the present invention has been described in its preferred embodiments, the present invention is not intended to be limited to the scope of the invention, and various modifications and changes may be made without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the above and other objects, features, advantages and embodiments of the present invention more obvious, the detailed description of the drawings is as follows: FIG. 1 is a cross section of a conventional colored CD disc. Figure 2 is a cross-sectional view showing a conventional colored DVD disc; Figure 3A is a flow chart showing the manufacture of a colored CD disc according to an embodiment of the present invention; and Figure 3B is a view showing the method according to Figure 3A. A cross-sectional view of a manufactured colored cd disc; FIG. 4A is a flow chart showing the manufacture of a colored CD disc according to another embodiment of the present invention; FIG. 4 is a view showing a colored CD manufactured according to the method shown in FIG. FIG. 5A is a flow chart showing the manufacture of a colored DVD disc according to an embodiment of the present invention; and FIG. 5B is a cross-sectional view showing a colored DVD disc manufactured according to the method shown in FIG. 5A; 6A is a flow chart showing the manufacture of a colored dvd optical film according to another embodiment of the present invention;

Figure 6B is a cross-sectional view showing a colored DVD \ 12 1379298 optical disc manufactured according to the method shown in Figure 6A.

Λ [Main component symbol description], /00: conventional colored CD disc 103, 304 '404 '504 ' 604 : recording layer 107: protective layer 111: colored cover 300, 400: colored CD disc 308, 608 : Colored protective adhesive layer 409: protective adhesive layer 500, 600: colored DVD disc 514, 614: colorless cover 320-326, 420-425, 520-529, 620-629: Step 101: colored substrate 105, 306, 406, 506, 6Ό6: reflective layer 109: glue layer 200: colored DVD disc 302, 402, 502, 602: colorless substrate 410: color scratch-resistant layer, 512: colored glue layer 613: glue layer

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Claims (1)

1衙年月月 W%%% Replacement Page 10, Patent Application Range: l - A method of manufacturing a colored optical disc comprising: providing a colorless substrate comprising a first surface and a second surface opposite the first surface Forming a recording layer and a reflective layer on the first surface of the colorless substrate; and forming a colored layer on the reflective layer to change the color of the optical disk, wherein the colored layer formed on the reflective layer Mixing a color masterbatch with a varnish layer material to form a colored protective layer or mixing a color masterbatch and a glue layer to form a colored bonding layer, when the colored layer is the colored bonding layer, the upper layer is formed thereon A colorless cover. 2. The manufacturing method according to claim 1, wherein the colored protective layer further comprises a colorless adhesive layer and a colorless cover. 3τ such as please-seeking-item 1 poor form f over-exempt, one more form-extinguishing; _ anti-scratch layer on the second surface of the substrate. 4. A colored optical disc comprising: a colorless substrate comprising a first surface and a second surface; a recording layer on the first surface; a reflective layer 'on the recording layer; and a colored layer, On the reflective layer, wherein the colored layer is a colored protective layer or a colored bonding layer, and when the colored layer is the colored bonding layer, the upper replacement page of the 13 13379298 April 13 Cover plate. 5. The optical disc of claim 4, further comprising: an anti-scratch layer on the second surface of the colorless substrate. 6. The optical disc of claim 4, wherein the colored protective layer further comprises a glue layer, and the glue layer further comprises a colorless cover. 15