KR20020075537A - Method for recording any advertising expression in optical disc - Google Patents

Abstract

PURPOSE: A method for recording commercial phrase to an optical disc is provided to remove the any additional commercial phrase printing step and printing devices thereof by copying the optical disc by using laser marking of the commercial phrase with respect to a stamper or a master disc. CONSTITUTION: A method for recording commercial phrase to an optical disc includes the steps of preparing a master disc(glass master) by forming pits(51a) as the data information on a glass substrate(51) by using a mastering machine, plating a metal film(53) on the glass substrate of the master disc formed with the pits for preparing a stamper(metal master;54) by separating the plated metal film, marking the commercial phrase such as lists of music, photographs, CI(Corporation Identity), BI(Brand Identity) and the like to any other area than the data recording area of the surface formed with the stamper pits, and copying an optical disc(59) by supplying optical disc raw materials to the stamper to which the marking is finished.

Description

Method for recording any advertising expression in optical disc}

The present invention is to promote the title, photo, or company or individual recorded on an optical disc such as a compact disc, a digital video disc, a card-type compact disc, or a laser disc for video. The present invention relates to a method of recording promotional phrases such as CI (Coperate Identity) and BI (Brand Identity).

Optical discs, such as compact discs (CDs), laser discs (LDs), and digital video discs (DVDs), which record and reproduce optically reproducible voice or video information, are recorder players (LP) or tape recorders that are contact recording media. Compared to the mainstream, it is possible to store a large amount of information, has an excellent qualitative effect in reproducing information, and is less affected by magnetism or heat, so that the range of use is expanded day by day. The compact discs that make up are always close to our daily lives, which makes it difficult to live without them.

The compact disc adopts a non-contact recording method using a laser. As can be seen in FIG. 1, the compact disc is typically made of a transparent plastic disc A having a diameter of about 120 mm and a thickness of about 1.2 mm. In the data recording area 1 of the original plate A, as shown in FIG. 2, a finite number of pits 10 formed of fine grooves are arranged along a spiral track, thereby providing data information such as audio and video data. Is digitally recorded.

On the surface where the pit 10 is formed, an aluminum film or aluminum-copper film for reflecting laser light is deposited, and a coating layer for protecting the aluminum film or aluminum-copper film is formed thereon.

Therefore, when the laser is irradiated to the pit 10 recording the information, the amount of light changes depending on whether the pit 10 is present or not. Therefore, such a change in the amount of light is detected as an electrical signal, and the information contained in the compact disc is read and reproduced.

3 shows a process of manufacturing such an optical disc, and a conventional optical disc manufacturing process typically includes a master disc (glass master) manufacturing step (a) and a stamper (metal master). Metal master) is produced by the process of manufacturing step (b), substrate forming step (c) and substrate coating and printing step (d).

In the master disk manufacturing step (a), a photoresist film 32 such as a photoresist is applied to a glass substrate 31 polished with high precision to a predetermined thickness, preferably 0.12 μm, and then a mastering machine (Mastering Machine) The desired information is recorded by irradiating a laser beam modulated in accordance with desired information, i.e., audio, video, etc. at a constant linear velocity using a device called ") to partially expose the photoresist film 31, and then recording the desired information. Clean.

Subsequently, the process proceeds to a stamper fabrication step (b), and a thin film of the metal film 33 is deposited on the glass substrate 31 on which the surface is exposed according to the information to be recorded in the step (a). The upper layer of the metal film 33 is coated with a metal film 34 such as nickel (Ni) using an electroplating method, and then the plated metal film 34 is separated and attached to a separate metal substrate 35. Complete the stamper.

This stamper is used for injection molding (cloning) of a substrate for replicating a plurality of optical disks having the same signal as the master disk.

When the stamper is completed as described above, enters the substrate forming step (c) and heat-injects a thermoplastic resin such as polycarbonate, PMMA, or APO to the stamper manufactured by the above-described process, thereby manufacturing a substrate. The ultraviolet curable resin 37 is sandwiched between the stamper and the flat substrate, pressed, and cured by irradiating ultraviolet rays, and then separated, thereby replicating the optical disk substrate 38.

The aluminum or aluminum-copper reflective layer 39 for reflecting the laser light is deposited on the pit surface of the optical disk substrate 38 thus replicated, and the transparent coating film 40 for protecting the reflective layer 39 is formed thereon. Then, the print layer 41 of the promotional text, such as music name, photo, CI, BI, and the like recorded on the transparent coating film 40 is formed separately, that is, printed.

FIG. 4 shows a mastering machine for exposing a photosensitive agent applied to a glass substrate in the process of manufacturing the master disc a to record desired information. As shown in FIG. 4, the laser 11 continuously oscillates. The generated laser beam is modulated into information to be recorded by the optical modulator 12 under the control of the computer control unit 22, and then the dichroic mirror 14 is reflected by the reflector 13 to transmit only light having a predetermined wavelength. After concentrating on the objective lens 15, the focus is made on the master disk 19 to which the photosensitive agent is applied, thereby exposing the master disk 19 to which the photosensitive agent is applied.

In this case, in order to accurately position the laser beam, a device for detecting and correcting the distance between the objective lens 15 and the photosensitive agent is required. Therefore, the optical system for focus servo 17 is provided on the side of the dichroic mirror 14. Is installed, and an actuator 16 for correcting an error with respect to the drive of the servo optical system 17 is provided on the side of the objective lens 15 to drive the objective lens 15 up and down, so that the laser beam is the master disk ( 19) to ensure the correct focus.

The optical disc manufactured as described above is capable of storing a large amount of information, has an excellent qualitative effect in reproducing information, and is excellent in magnetism and deterioration, so that loss of stored information does not occur. According to the popular dissemination, it is widely used in daily life. For this reason, optical discs are widely distributed not only for the sale of products but also for specific commercial use or promotion of companies or individuals.

For example, differentiation can be made by printing not only the name of a song but also a design image through various methods on an optical disc containing music, or a singer producing an optical disc as a promotional card for the size of a credit card or business card in advance of a new song release. Next, the promotional optical disc contains promotional data together with the title song, and prints and distributes various promotional texts suitable for the characteristics of the new song or the image of the singer on the surface thereof, or the company provides the optical information for its simple guidance and promotion. It is used in various ways, such as recording information on a disk and information for promotion, and then printing the surface with promotional text (images).

However, the conventional optical disk manufacturing method as described above has a separate printing equipment and printing process for printing promotional text such as music title, photograph, CI, and BI on the surface of the completed optical disk substrate, and thus the optical disk Because of the high cost of investment and delay in the manufacturing time, the printing is printed on the surface of the optical disc and the printed part is peeled off or damaged easily during the distribution or use process. A problem occurred.

Accordingly, the present invention has been made to solve the above problems, the object of the object is not to print the title, photo and other promotional phrases through the separate equipment and processes on the duplicated optical disk, and to record everything in the original In the process of duplicating an optical disc, promotional text is automatically recorded to reduce investment cost, cost and manufacturing time.

1 is a schematic perspective view showing a portion of a conventional general optical disk

FIG. 2 is a schematic diagram showing an extract of a pit which is a recording state of information in a conventional general optical disc. FIG.

3 is a process chart showing a conventional optical disk manufacturing process

4 is a block diagram of a device for recording information on a conventional optical disk;

5 is a process diagram showing a process of recording promotional text on an optical disc according to an embodiment of the present invention.

6 is a process chart showing a process of recording promotional text on an optical disc according to another embodiment of the present invention.

7 is a view showing a promotional text recorded on an optical disk according to the present invention, and applied to a general card type CD.

In order to achieve the above object, the present invention provides a process for producing a master disk (glass master) by forming a pit as data information on a glass substrate using a mastering machine; Manufacturing a stamper (metal master) by plating a metal film on a glass substrate of the master disk on which the pit is formed, and then separating the plated metal film; Marking promotional phrases such as recorded music names, photographs, CIs, and BIs on portions other than the data recording area of the surface where the pits of the stamper are formed; Replicating the optical disk by supplying an optical disk material to the marked stamper; It provides a promotional phrase recording method of an optical disc comprising a.

Here, the process of marking the promotional phrase on the stamper, characterized in that the marking directly on the pit forming surface of the stamper as a laser beam modulated according to the information of the promotional phrase, such as song title, photo, CI, BI converted into data It is done.

The present invention is to mark the promotional text on the stamper, which is the original, and to copy the optical disk using the same, so that the promotional text is automatically recorded when the optical disk is copied. In this case, the promotional text is directly marked on the stamper with a laser to obtain a particularly clear promotional text.

In addition, according to another method of the present invention, forming a pit as data information on a glass substrate using a mastering machine to produce a master disk (glass master); Marking promotional phrases such as a song name, a photograph, a CI, a BI, and the like recorded on a glass substrate of the master disk on which the pit is formed; Manufacturing a stamper (metal master) by plating a metal film on the glass substrate on which the promotional text is marked, and then separating the plated metal film; Replicating the optical disk by supplying an optical disk raw material to the manufactured stamper; It provides a promotional phrase recording method of an optical disc comprising a.

The process of marking the promotional text, the process of marking the promotional text, after applying a photoresist film on the pit of the glass master, using the mastering machine, the recorded song name, photo, CI, And irradiating a laser beam modulated according to information of promotional text such as BI to partially expose the photoresist film.

Another embodiment of the present invention is to record the promotional wording in advance on the glass substrate of the master disk (glass master) for producing a stamper by using a laser, so that the promotional wording is automatically formed when the stamper is produced by using the optical stamper It is automatically recorded when the disk is cloned.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

First, Figure 5 shows a method for recording promotional phrases such as music titles, photographs, CI, and BI on an optical disk according to a preferred embodiment of the present invention.

It is manufactured by a process of producing a master disc, a stamper making step, a promotional word marking step, and an optical disc copying step.

In more detail, first, the manufacturing process of the master disc is performed, which is performed by applying the photoresist film 52 to the glass substrate 51 polished with high precision as shown in (a) to a predetermined thickness, preferably as shown in (b). After applying 0.12㎛ thick, convert the data or songs to be stored for personal or company promotion into data using a mastering machine as shown in (c) and then irradiate the modulated laser beam according to the converted data information. After partially exposing the photoresist film 52 to record desired information data, the photoresist film 52 is washed as shown in (d) to extract the pits 51a on the glass substrate 51 to produce a master disk. .

Subsequently, a stamper manufacturing step is performed, in which the metal film 53 is deposited thinly on the pits 51a of the glass substrate 51 whose surface is exposed according to the information to be recorded in the above-described steps, as shown in FIG. As shown in (bar), a metal film 54 such as nickel (Ni) is coated on the upper layer of the metal film 53 by using a method such as electroplating, and then the plated metal film is separated as shown in (g). 54).

Next, a marking step for red hair marking a promotional phrase such as a song name, a photo, a CI, and a BI is recorded in an area where the information of the stamper 54 is not recorded. The stamper 54 produced in the above-described step is performed. On the forming surface of the pit 51a, promotional texts such as recorded song names, photographs taken with a scanner or a digital camera, CI, BI, etc. are converted into data after completing desired editing through a computer, and then converted as in (a). The laser beam modulated according to the information of the data is irradiated and directly marked. Here, the laser marking may be performed using the mastering machine, or preferably by installing a conventional laser marking apparatus on a process line. When marking the promotional text, it is produced so as not to affect the data recording area of the stamper 54.

When the laser beam is irradiated on the pit 51a forming surface of the stamper 54 in response to the promotional text such as the name of the song, photograph, CI, BI, and the like, the upper surface 51b of the pit 51a is A constant curvature corresponding to the promotional text is formed between the pit 51a and the pit 51a.

The stamper 54 thus completed is a metal disc (metal master) having the same signal as the master disc and having pre-recorded promotional text, which is used to mold, ie, duplicate, a plurality of identical optical discs.

When the marking of the promotional wording on the stamper 54 is completed as described above, as described in (C), a separate metal substrate 55 for coupling the stamper 54 marked with the promotional wording to the injection machine. ), And then enters the optical disk replication step, which can be made by heating and injecting a thermoplastic resin, such as polycarbonate, PMMA, APO, into the stamper as shown in (K), or ( As shown in (c), the ultraviolet curable resin 58 is sandwiched between the stamper and the flat substrate, pressed, and then irradiated with ultraviolet rays to cure and then separated, thereby replicating the optical disk 59 having the promotional text recorded thereon.

The data unique to the optical disk, such as a song and a video, are recorded on the pit 59a surface of the optical disk 59 thus replicated, and promotional text is recorded. Then, the final optical disk is completed by depositing an aluminum or aluminum-copper reflective layer for reflecting the laser light on the pit surface 59a as in the usual method, and forming a transparent coating film for protecting the reflective layer thereon.

The present invention is to mark the promotional word directly on the stamper, and to copy the optical disk using it, so that the promotional word is automatically recorded when forming the optical disk.

According to the present invention it is possible to obtain a particularly clear promotional text by the promotional text is directly marked on the stamper with a laser.

6 shows another embodiment of the present invention.

Unlike the above-described embodiment in which the promotional text is directly marked on the pit forming surface of the stamper, laser marking is performed on the pit forming surface of the glass substrate, which is a master disk, and then a stamper for replicating an optical disk is produced using the glass substrate. will be.

Referring to this in more detail with reference to Figure 6, first proceeds to the master disk manufacturing step, which is a (a) to a glass substrate 61 polished to a very high precision as shown in (b) to the predetermined thickness of the photoresist film (62) Preferably, it is applied in a thickness of 0.12㎛ and then using a mastering machine as shown in (c) to convert the data for personal or company promotion or songs to be stored in the data and then modulated according to the information of the converted data After irradiating the laser beam to partially expose the photoresist film 62 to record desired information data, the photoresist film 62 is washed as shown in (d) to extract the pits 61a from the glass substrate 61, and then to master. Create a disc (glass master).

Next, the photoresist film 63 is again applied to the pit 61a forming surface of the master disk manufactured as described above (e) to a predetermined thickness, preferably 0.12 μm, and then, as shown in (bar), Using the mastering machine, promotional texts such as recorded song titles, photographs taken with a scanner or digital camera, CI, BI, etc. are converted into data after a desired editing operation through a computer, and then modulated according to the information of the converted data. The promotional text is marked by partially exposing the photosensitive film 63 by irradiating the laser beam, and the master disk on which the promotional text is marked is washed by washing the photosensitive film 63 as shown in (G). When marking promotional text, it is produced so as not to affect the data recording area of the glass substrate 61.

When the laser beam is irradiated to the pit 61a forming surface of the glass substrate 61 in response to the promotional text such as the name of music, photograph, CI, BI, and the like, the upper surface 61b of the pit 61a is ) And the pit 61a and the pit 61a are etched to form a constant curvature corresponding to the promotional text.

In this way, a stamper is produced using the completed glass substrate 61, that is, the master disk, and the optical disk is duplicated using the stamper.

That is, the metal film 64 is thinly deposited on the pit of the glass substrate 61 on which the information to be recorded in the above-described step is recorded and the promotional text is marked, as shown in (a), and the metal film as shown in (za). The upper layer of 64 is coated with a metal film 65 such as nickel (Ni) using a method such as electroplating, and then the plated metal film is separated as in (d) to produce a stamper 65. The stamper 65 includes information such as songs, promotional materials, and videos, and also includes promotional texts such as recorded song names, photographs, CI, and BI.

When the production of the stamper 65 is completed as described above, as shown in (k), the stamper 65 is attached to a separate metal substrate 66 to be coupled to the injection machine, and then the optical disk replication step. As can be seen in (ta), it is possible to heat-inject the thermoplastic resin 67 such as polycarbonate, PMMA, or APO to the stamper as shown in (ta), or to manufacture an optical disk, or (c) the ultraviolet curable resin (68). Is pressed between the stamper and the flat substrate, and then irradiated with ultraviolet rays to cure and then separated, thereby replicating the optical disk 69 having the promotional text recorded thereon.

The data unique to the optical disk, such as songs and images, is recorded on the pit 69a surface of the optical disk 69 thus replicated, and promotional text is recorded. Thereafter, the final optical disk is completed by depositing an aluminum or aluminum-copper reflective layer for reflecting laser light on the pit surface 69a as in a conventional method, and forming a transparent coating film for protecting the reflective layer thereon.

The present invention is to mark the promotional phrase on the master disk, to produce a stamper as its master disk, and to duplicate the optical disk using its stamper.

The purpose of the present invention is sufficiently achieved by the fact that the promotional phrase is automatically recorded when the optical disc is formed, as in the above-described embodiment, and the sharpness may be somewhat lowered than the above-described embodiment in which the promotional phrase is directly marked with a laser on the stamper. However, it is much superior to the conventional printing aspect.

Figure 7 shows an optical disk made in accordance with the present invention. This shows an example in which the optical disc 100 is formed in the form of a credit card or a business card. The upper part of the drawing shows the upper surface of the optical disk 100, and the lower part of the drawing shows the lower surface of the optical disk 100. The surface to which laser light is irradiated is shown.

As shown in the drawing, the promotional text 102 or 103 made of a photograph of an individual is recorded in a portion other than the data recording area 101 of the card-type optical disc 100. As shown in FIG. The promotional text 102, 103 can be found on the front and back of the optical disc 100 as shown, since it is directly copied from the original.

Subsequently, a separate label (printing paper) may be attached to the surface of the optical disk 100, that is, the upper surface.

As described above, in the present invention, in recording the promotional text on the optical disk, unlike the conventional method of separately printing the promotional text on the duplicated optical disk, the recorded song name, photograph taken by a scanner or a digital camera, CI, By editing the BI on a computer and laser marking the stamper or master disk in advance, and copying the optical disk using it, the process of separately printing promotional text on the duplicated optical disk and the printing equipment according to it can be excluded. In addition, clearer promotional phrases can be obtained, which can improve publicity. In addition, since the printed promotional text is not damaged since it is not printed on the surface of the completed optical disk, an elegant optical disk can be provided.

Claims (4)

Manufacturing a master disc (glass master) by forming a pit as data information on a glass substrate using a mastering machine; Manufacturing a stamper (metal master) by plating a metal film on a glass substrate of the master disk on which the pit is formed, and then separating the plated metal film; Marking promotional phrases such as recorded music names, photographs, CIs, and BIs on portions other than the data recording area of the surface where the pits of the stamper are formed; Replicating the optical disk by supplying an optical disk material to the marked stamper; Promotional phrase recording method of an optical disk comprising a. The method of claim 1, The process of marking the promotional phrase on the stamper is characterized in that the laser beam is modulated in accordance with the information of the promotional phrase, such as song title, photo, CI, BI, etc. converted into data, marking directly on the pit forming surface of the stamper. How to record promotional text on an optical disc. Manufacturing a master disc (glass master) by forming a pit as data information on a glass substrate using a mastering machine; Marking promotional phrases such as a song name, a photograph, a CI, a BI, and the like recorded on a substrate of the master disk on which the pits are formed; Manufacturing a stamper by plating a metal film on the glass substrate on which the promotional text is marked, and then separating the plated metal film; Replicating the optical disk by supplying an optical disk raw material to the manufactured stamper; Promotional phrase recording method of an optical disk comprising a. The method of claim 3, The marking of the promotional text may include applying a photoresist film on the pit of the glass master, and then, using the mastering machine, according to the information of the promotional text such as the name of the song, photograph, CI, BI, etc., which is converted into data. And irradiating a modulated laser beam to partially expose and mark the photoresist film.