TWM244560U - Improved structure of dual-sided compact disk - Google Patents

Description

M244560

[Technical field to which the new type belongs] This creation is to provide a double-sided optical disc structure improvement, which is in the front of the optical disc: a recording entity whose surface can be read / write format, wherein the optical disc is cut into upper and lower double-layer discs In order to allow two layers to be read on the same side, two different points appear, one of which is a translucent film made of a metal reflective material on the reflective surface, and the other is in the middle layer, which is precisely Is controlled in the same thickness and transparent state. DVD — R is a single-write multiple-reading type, and is compatible with DVD-VIDEO, DVD-AUDIO, and DVD-ROM. The cost of making a disc is about the same as that of a CD-R. The latest 2.0 · size is 4.7GB, The key technology for writing DVD-R in μ 0 * and sub-segments is that it requires high precision. 读写 The read-write head 'because the DVD-R has a holding distance of only 74. 0 · 29 3um, about 1/3 of CD-R, DVD-R film uses organic pigment film 'so it looks purple and can be absorbed by laser light with a wavelength of 635ηι or 65011111. / [Previous technology] Please refer to the first picture. The single-layer discs currently used are similar to the CD process. 'Firstly, a master disc is mounted on the mold of the forming machine, and the injection molding process is used to create transparency After the resin substrate is subjected to sputtering and other processes, a metal reflective film such as aluminum is formed on the signal surface of the resin substrate, and then an adhesive is coated on it to form a disc with another substrate. Finally, printing labels and packaging are completed. For CD and LD, the polished and cleaned glass master disc is coated with a photoresist material ’after passing through LBR (Laser Beam Recoder), and then using a laser to expose the photoresist.

Page 5 M244560 5. Creation Instructions (2) To make the signal cut (Laser Cutting). The input lbr signal is the output signal of the physical format described above. After recording, the master disc is developed by electro-forming, and then stamped (Spat tering), and then electroformed to make a stamper (§ tamper). The original DVD is called "DIGITAL VERSATILE DISC", which can be translated It becomes a "digital multi-function disc", which is developed from the existing CD_R0M discs, and the size is the same, but because of the reduction of the digital recording pitch: and the change of the recording method, it can increase the storable content. To store, including music, video, and general digital types. In addition, at the beginning of the early development, the second shell ίΛΙ (ΪΙΤΑί VIDE0 DISC "was translated into" digital video disc "" the official name is set to "DIGITAL VERSATILE DISC", also known as digital multi-function disc ". The video σΤΙ movie uses MpEG2 level digital compression technology optical disc, VHS video tape, and the existing VCD movie sound technology. The sub-theta uses Dolby (D0BBY) AC-3 level stereo audio) = 2 storage —The section contains the above two contents (video and audio 2: 20-oral movies (more than 135 minutes, the capacity of this disc should be reported earlier. The capacity of the first disc is at least 4. 7GB, and the existing CDs are the same as those of the head I.) 7 times the size of CD discs, and the size and compatibility characteristics, it is straight from 12 cm, thickness 1 · 2MM), and has a forward-looking CD disc. 疋 VD player must be able to read the existing various M244560 five 3. Creative instructions (3) DVD disc capacity type: one-sided reproduction: one layer of data is recorded on one surface with a capacity of 4.7GB; one-sided reproduction of two layers: recorded data on one surface only, but data spacing can be reused Double layer The capacity of such a disc is 8. 5GB ° The single-sided read-only format recording entity can only provide single-sided recording, and cannot double-sided recording, and restricts read-only data from being written to the record, not only cannot increase the memory capacity, It also causes a problem of limited space on one side. Therefore, how to provide a double-sided disc structure improvement of a recording entity with a double-sided read / write format is the technical difficulty to be solved in this case. [Creation content] Please refer to As shown in the second, third, and fourth figures, this creation provides an improved structure of a double-sided optical disc, which is a recording entity in the form of a readable / writeable surface on the front and back of the optical disc 1. The optical disc 1 is divided into upper, The lower layers 2 and 3 are provided with an adhesive layer 10 between the upper layer 2 and the lower layer 3. The adhesive layer 10 may or may not be provided with a protective layer 2 1, and a reflective layer 2 is provided above the protective layer 21. 2 and a dye layer 23 is provided above the reflective layer 22, and a protective layer 3 1 may or may not be provided below the adhesive layer 10, and a reflective layer 32 is provided below the protective layer 31, and the reflective layer 32 is provided. A dye layer 3 3 is arranged below the upper layer 2 and the lower layer. 3 can record data front and back surfaces, forming a double-sided read / write at least more than one layer, data recording capacity of about 9. 4GB on both surfaces of the disc.

Page 7 M244560 V. Creative Instructions (4) [Embodiment] Please refer to the fifth picture of this creative damage improvement, the manufacture of optical discs ... structure injection molding process 4 2 —sputtering process 4 3 _ to people fjyun4 1 — Project 4 5-Inspection Project 4 6; _Combined Project… Printing different bonding projects can produce different dvd 袼 styles, two pieces are glued in all ways such as hot melt adhesive or UV curing adhesive. · A DVD-R or R / W semi-finished product or a piece of 0.6mm thickness DVD —R = and a DVD-5 or DVD-9 semi-finished product produced by the bonding process. Dvd = 口 片 口 The hot melt adhesive bonding technology is to melt the heat The glue is applied to the back of the disc by adding 融 = melt glue, and then the method of 'cooling and cooling can make two ... thick UV adhesives cured disc adhesive sheets bonded to the base square plate, and then UV light Irradiation makes the aforementioned optical disc readable text and the readable and writable format set by the video grid i times 2 2 provided for the reservoir substrate. Bei, the lower layer 3 is not made of polycarbonate. In order to make this warehouse 彳 1 a comparison analysis is as follows: ° shows its progress and practicability, and it is a common practice.

M244560 V. Creation Instructions (5) 2 3 4 1. Record data on only one surface. The m-read format record entity can only provide single-sided records ..., French double-sided §self-recorded. Restrict read-only data from being written to the record. Not only cannot the memory capacity be increased. Limited space on one side. Advantages of this creation 1. Double, recording, one disc has two disc substrate capacity. 2. There are classifications of single-layer and double-layer recording. 3. The capacity is far beyond the existing CD-ROM disk (about 65 sen), and it is even higher than the hard disk capacity (about 2GB to 4GB). Even 4. Double-sided read / write format records entities. In summary, under the previous technical structure, this creation has achieved the desired effect every time, and it is not familiar with the skill. Moreover, this creation has not been disclosed before the application, what is its progress? Born in: And sex ’obviously meets the application requirements for new patents, and proposes new g according to law:

M244560 Brief description of the diagram The first diagram is the structure of a conventional single-sided disc. The second picture is the structure of this creative double-sided disc. The third picture is the fitting structure diagram of this creation. The fourth picture is a detailed double-sided structure diagram of this creation. The fifth picture is the composition and implementation diagram of this creation. [Illustration of figure number] Optical disc · · 1 upper layer · 2 lower layer · · 3 adhesive layer · · 1 0 protective layer · · 2 1 reflective layer · · 2 2 dye layer · · 2 3 protective layer · · 3 1 reflective layer · 3 2 Dye layer · 3 3 Pre-manufacturing process · 4 Master process · 4 1 Injection molding process · 4 2 Sputtering process · 4 3 Adhesive process · 4 4 Printing process · 4 5 Inspection Engineering ·· 4 6

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Claims (1)

M244560 VI. Application for Patent Scope 1. A double-sided optical disc structure modification ^, including: both front and back surfaces of the optical disc can be read / write format recording entities, where the optical disc is divided into upper and lower layers, and double-layer discs In order to allow two layers of content signals to be read on the same side, there are two differences. The main feature is that it is a recording entity that has a read / write format on the front and back of the disc. The optical disc is divided into upper and lower layers, wherein an adhesive layer is provided between the upper layer and the lower layer, a protective layer is provided above the adhesive layer, and a reflective layer is provided above the protective layer, and a dye layer is provided above the 2-radiation layer. In addition, a protective layer is provided under the adhesive layer, and a reflective layer is provided under the protective layer, and a dye layer is provided under the reflective layer. The upper and lower layers can be used to read and write recorded data, and provide two sides of double-sided recording. Format records of different format memories. 2. The structure of the double-sided optical disc as described in item 1 of the scope of the patent application, wherein the read / write memory format set on the upper layer of the disc is used to store audio-visual format data, and the read / write memory format set on the lower layer is used for storage Audiovisual data. 3. The structure of the double-sided optical disc as described in item 1 of the scope of the patent application, wherein the read / write memory format set on the upper layer of the disc is used to store text ^ format data, and the read / write memory format set on the lower layer is used to Save text format data. 4. The structure of the double-sided optical disc described in item 1 of the scope of patent application, wherein the read-only memory format data set on the upper layer of the disc is used to store text and audio-visual format data, and the read / write memory format set on the lower layer For the storage of text and audio-visual format data. = 5 Improvement of the structure of the double-sided disc as described in item 1 of the patent scope Page 11 M244560 6. Scope of patent application, in which the upper and lower layers of the optical disc contain at least one layer of readable / writeable record data on both surfaces of the optical disc. 6. The improvement of the structure of the double-sided optical disc as described in item 1 of the scope of the patent application, wherein the read / write memory format set on the upper layer of the disc is used to store text and audio-visual format data, and the lower layer is set to remove polycarbonate Material layer substrate❹ Page 12