TW582029B - Over-distance sensing method for compact disc manufacturing - Google Patents

Abstract

The present invention provides an over-distance sensing method for compact disc manufacturing, which comprises installing a mirror plate with protrusion parts or a compact disc stamper with protrusion parts in an injecting machine, wherein the protrusion parts are arranged on the blank area of the inner ring of the compact disc or on the blank area of the outer ring of the compact disc in a ring shape or ring trapezoid shape; forming a blank disc with corresponding recesses by integral injection molding; performing a winding process and a chip burying process in the recess area; and performing a shielding/covering layer process in the recess area to form a shielding/covering layer to protect and fix the winding and the control chip therein, and keep its outside surface and the outer surface of the compact disc smooth.

Description

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It has the ability of long-distance sensing = ^ disc production method. The blade of the optical fiber is made by M. F is decided, especially with regard to the use of today's optical discs.疋 About case No. 90129¾ ^ V. Description of the invention (1) The present invention is a kind of sensory tool (C0mpaCt DisC) or ^ has been 3, often, large, whether it is CD, has been widely used by modern people And 1Sital Versati u is traditionally used as data storage media. In addition to the large number and cheap characteristics, 'a j' can also use the various layers of the optical disc ^ to expand the application layer of the optical disc. The present invention is an ultra-distance inductive light, which is based on the sinus of a pre-recorded small optical tablet. How to do it, for the sake of convenience, please refer to the first ~ =

The first figure is a conventional small disc white sheet 10, the white I 10 refers to a direct injection molding method using a disc template 31 (stamper) stamper (injection molding machine not shown). There is a central hole 11 in the center of the white piece 10, and there is usually a blank area 12 without information around the central hole. The outer area of the blank area 12 is a data area with potholes or signals. The second figure is a schematic cross-sectional structure diagram of a general CD-ROM in the data area 13 in the direction AA perpendicular to the paper surface. The f-pit or track signal (not shown) on the surface of the data area 13 is stripped from the optical disc template 31 to form an information surface 26, and the substrate 21 having the information surface 26 area forms a white sheet. 10. The structure of the white sheet 10 includes a substrate 21 made of polycarbonate, an information surface 26 and a reading surface 27. The conventional white film 10 performs a series of subsequent processes to complete a complete process of an optical disc: including a sputtering process of a metal reflective layer 22, a spin coating process of a protective layer 23, and

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The surface 2 5 is opposite to a printing process, and a reverse surface printed on the printing surface is formed on the surface of the printing layer 24, which is a mirror reading surface 2 7. Method for making a film The plate 31 and the mirror surface are formed between the optical disc e) and the mirror panel 3 3 and the optical disc are white films. The information corresponds to the pit and number data; a mirror surface is formed. The panel 33 is in the middle (that is, the third figure, please refer to the second figure), which is a schematic diagram of the relative position of the best embodiment of the injection molding of the ultra-distance induction optical disc of the present invention. The template 3 3 is placed in the injection molding machine in advance, and the white disc 3 2 is the template 31 (stamper) and the mirror panel 33 (mirror pUt). During the injection molding process, the plastic material is double-extruded by the disc template 3 jade. The mold is cooled to form a white disc 3 2. An information surface 2 6 is in contact with the disc template 3 丨 to form a surface 26 formed in a data area 13, and has holes (pits and lands) with the disc template 31 or The other surface of the information surface 26 such as a groove is in contact with the mirror panel 33 during injection molding and reads the surface 27. The mirror surface 27 is usually a smooth flat surface. Please refer to the fourth figure for the optical disc of the present invention. The white film 32 and the mirror core hole 11 and the blank area 12 are shown in the enlarged cross-sectional area (the BB area shown in the schematic diagram), in which the mirror panel 33 is at an appropriate distance from the outer ring of the center hole 11 of the optical disk white film 32. First trapezoidal protrusion 41 and first Second-stage protrusion 42. The annular first-stage protrusion 41 is slightly lower than the second-stage protrusion 42 and is located on both sides of the second-stage protrusion 42. Since the mirror panel 33 has a ring-shaped trapezoidal protrusion, it is ejected. The formed white disc 32 has a ring-shaped trapezoidal first-stage recessed area 4 1 1 and a second-stage recessed area 4 2 1 correspondingly. Please refer to the fifth figure to read the mirrored white disc 32 after injection molding. Take the front view of the surface, and the front display is the reading surface 27. From the figure, it can be seen that the first step recessed area 4 1 1 and the second step recessed area 4 2 1 are distributed on the optical disc.

8697twfl.ptc Page 5 582029 _Case No. 90129364_Year_Month__ 5. The relative position of the description of the invention (3) is from the central hole 11 to the circumferential direction, followed by the blank area 1 2 and the first depression area. 4 1 1, the second-order recessed area 4 2 1, the first-order recessed area 4 1 1 and the blank area 12, and the outside of the blank area is the data area 13. The sixth diagram is an enlarged schematic diagram of the section near the central hole 11 of the present invention. For the convenience of explanation, the right and left sides respectively show the pre-implementation and post-implementation schematic diagrams of the process of the rear section of the recessed area in the embodiment of the present invention. A winding group 61 and a control chip 6 2 are arranged in the second-stage recessed area 4 2 1. The function of the winding group 61 is to sense the changing magnetic field of the outside world, and its induction method is non-contact super-distance sensing. The role of the control chip is to capture the oscillation and power of a specific frequency of the winding group 6 1 and generate a predetermined response signal. The response signal can be made unique and unique by the precise control of the chip. This unique and unique signal can be used to identify the source of the disc or other controls such as switches, etc., which can generate many different added value applications. In the first recessed area 4 1 1, it is a coating 6 3 to protect and fix the winding group 6 1 and the control chip 62 located inside. The outer surface 6 3 1 of the coating 6 3 is similar to the mirror surface. The reading surface 2 7 remains flat. It should be noted that, as shown in the third to fifth figures, the method for manufacturing the ultra-distance induction optical disc of the present invention described above, wherein the annular trapezoidal protrusion is located on one side of the mirror plate 3 3 1. Similarly, the annular trapezoidal protrusions can also be arranged on one side 3 1 1 of the disc template 3 1, and the annular protrusions are located in the blank area 12, which does not affect the information on the information surface 26. Another possible arrangement of the annular trapezoidal protrusions is located in the outer ring area 13 of the data area, as shown in the outer ring area 81 of the eighth embodiment of the embodiment, which can also achieve the purpose of the present invention. It should be noted that as long as it does not affect the normal reading of the data and can effectively sense it. In addition

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Case No. 901293fi4 Description of the invention (4) ^ A ring-shaped trapezoidal recessed area can be provided in the second and second white areas 91 except the inner blank area 12 or the aforementioned outer ring area 81, as shown in the ninth figure of the business card type: Etc. The figure is represented by the shaded area. ', The month must also be described as the first step recessed area 411 in the embodiment, and the purpose of the ring-shaped arrangement is to increase the contact surface between the cover 63 and the disc U, so that the cover 63 itself is easy It is held in the __th stage depression area and will not cause it to fall off, which will affect the life of the disc itself. If it is implemented by different processing methods, such as thermal welding or ultrasonic surface fusion, or injection implantation or appropriate The use of UV glue, so that the coating (ie the cover layer 73) is not likely to fall off, you can replace the original trapezoidal first-stage recessed area 4 1 1 with a ring-shaped gate-shaped second-stage recessed area 4 2 1; its corresponding The mirror panel 33 can omit the stepped first-stage protrusion 41 and replace it with a second-stage protrusion 42, as shown in another embodiment of the present invention in the seventh figure. According to the above, the manufacturing method of the ultra-distance inductive optical disc of the present invention is to install a mirror panel 33 with a protruding portion and a general optical disc template 3 1 ′ in the mold of the injection machine. This installation method is relatively easy for the injection. Ideally, but another reverse arrangement, such as a disc template with a protrusion and a general mirror panel, can also be implemented. The protrusions can be arranged in a ring shape or a ring trapezoid shape. The position of the protrusions and recessed areas of the optical disc with a relatively recessed area can be formed by integral injection. , Or other suitable locations, the white disc of the disc with the recessed area can be used for the subsequent process of the disc or the process of the latter part of the recessed area. The subsequent process of the optical disc may include a sputtering process of the gold reflective layer 22, a spin coating process of a protective layer 23, and a printing process.

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Correction process, etc., to complete a 弁 磔 μ process is included in the complete process of 1 disc itself. A loop is formed at the back of the recessed area, and the winding group 6 1 process is embedded in the recessed area to form a winding-electric circuit < re-chip_ 6 2, and the wound coil 6 1 and the chip 62 are formed into an area. In order to form a covering-covering 6 3 / covering layer 73 process, the recessed wire group 61 and the control sheet 1 cover layer are used to protect and fix the winding surface located inside to keep flat. Add $ 2 'and make the outer surface and the outer surface of the disc have a recessed area ^ ^ = The process does not interfere with each other in principle. If the advantage is that the process is almost white, the subsequent process of the disc is performed first. It can even be used in the subsequent process of the 411F & 421F coated gloss color in the subsequent process of the 411F & 421F coated gloss color on the white film of the concave disc to determine whether there is a recessed area. In addition, in the manufacturing process of the optical disc, for example, standby, / due to the need, the insertion of the recessed area for the small or other considerations or the elimination of bottlenecks. The production of ultra-distance inductive optical discs is based on special considerations. Based on the present invention, the method of milling a circular trapezoidal trapezoid can also be milled on a general optical disc 421 '. The method includes the first-order concave-sag area of light. "1 and the second stage of the recessed area rotary milling process to form a disc-disk production 1 'plane, perform a circular or circular ladder disc, perform rotary milling position ί, trapezoidal depression 1, : Or other appropriate space position. And in the latter part of the ring-shaped concave two-wire system Γ depression area '& enclosed in the depression area of the optical disc = to form a winding coil, and simultaneously embed-wafer, and make the The winding process is divided into an electric milk circuit, and a coating / covering layer is applied to ΛLianbaoling and the winding group and the control chip located in Neiqiu 1 to 4 are fixed.

582029 _Case No. 90129364_ Year Month Revision _ 5. Description of the invention (6) and keep the outer surface of the disc and the outer surface of the disc flat. In addition, the method of hot-melt printing is also acceptable, that is, the method of hot-melt embossing, such as using a hot stamper, in a suitable area of the optical disc, such as a blank area of the inner ring, Making a ring-shaped or ring-shaped trapezoidal protrusion to generate a relatively recessed area at an appropriate position on the optical disc can also achieve the purpose of the latter stage of the recessed area. However, such an application method has a positive significance for small-scale production. However, for a large number of productions, unnecessary processing procedures have been added, such as the generated burrs, cutting and trimming work, etc., which have increased the cost. To sum up, the "ultra-distance sensing optical disc manufacturing method" of the present invention provides a progressive and feasible solution for various optical disc families, so that the optical disc itself can not only play the function of the optical disc, but also make the optical disc have ultra-distance sensing. Ability, and through its induction effect, achieve various possible application-level effects, such as anti-theft, long- and short-term access control (such as concerts), identification of personalized information, switch control of computer peripherals, etc. It is indeed a novel and progressive invention, which fully complies with the requirements of the invention of the patent law. It is only necessary to state again that the embodiments of the invention are not intended to limit the invention, and any changes made by using the spirit of the invention. For example, due to the different special processes of the optical discs with different specifications, or some related adjustments and equivalent changes in the order of their process contents, they are of course still covered by the scope of patent application of the present invention.

8697twf1.ptc Page 9 582029 _Case No. 90129364_ Year Month Amendment _ Simple Explanation of Drawings Figure (1): Known white compact disc. Figure (2): At the 13th position in the data area of Figure 1, a schematic diagram of the cross-section structure of a general CD-ROM only. Figure (3): Schematic diagram of the relative position of the injection molding embodiment of the present invention Figure (4): Enlarged schematic diagram of the white disc and mirror panel section of the present invention. (Fifth) Figure: The embodiment of the optical disc after injection molding according to the present invention. Figure (6): An enlarged schematic diagram of a section near the central hole of the optical disc of the present invention. Figure (7): A schematic diagram of another embodiment of the present invention. Figure (8): Another embodiment of the outer ring of the optical disc according to the present invention. FIG. 9 is a schematic diagram of another embodiment of the information blank area of the present invention.

8697twf1.ptc Page 10 582029 _Case No. 90129364_ Brief description of the correction chart 31, disc template 3 2, disc white 3 3, mirror panel 41, first step protrusion 4 2, second step protrusion 4 1 1 、 First-order depression area 4 2 1 、 Second-stage depression area 4 1 1 F 、 First-stage depression area surface 4 2 1 F 、 Second-stage depression area surface 61 、 Winding group 6 2 、 Control chip 6 3, covering 6 3 1, outer surface 81, outer ring area 91, information blank area

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Claims (1)

582029 582029 The production is based on the application of the patent application No. 1 of the "Scope / Cover Layer of Ultra-Distance Sensitive Optical Discs, whose outer surface is flat, and the outer surface of the non-fossil-free disc is kept flat. D 9 The method is to perform a skin-ring / clothing method on one side of the optical disc. The system includes: a depressed area; a process of forming j in the annular depressed area to form a ring-shaped process; and The coating / covering layer is manufactured by a winding process and the winding group and the control chip in which a wafer manufacturing section is embedded. Clothing I is protected and fixed within 1 °. According to the patent application scope q Γ production method "," light distance f9 item "over-distance induction disc process to form-ring ladder opening ^ ⑽ order A ring-shaped trapezoidal spiral sharpening system 11 · According to the patent application scope μ d 5 manufacturing method "," the light ping = 9 items "blank area of the inner ring of the ultra-distance induction type optical disc. Location of rotary milling, It is located on the disc manufacturing method: According to: m: = 9, "Those with a blank area on the outer ring of the super-distance sensing disc. The position for force upsetting milling is located on the disc 13. According to the patent application, if] the method of making n" Among them, the method of "Super-distance Inductive Optical Disc for the 49th item of optical i ... Shen Shenzhuan: If the item 9 of the" Super-distance Inductive Optical Disc manufacturing process winding system and the embedded crystal = Information normally read by a compact disc ^ = The position where the rotary milling is performed, which is located in the white area that does not affect 1 4 π and σ I. 582029 _ Case No. 90129364 6. Scope of patent application: Amendment Form an electrical circuit. 15. According to the "Production Method of Ultra-Distance Sensitive Optical Discs" according to Item 9 of the scope of patent application, the outer surface of the coating / covering layer formed is flat with the outer surface of the optical disc. Page 14