KR20010109936A - Method Of Recoding Corporate Identity In Optical Disk - Google Patents

Abstract

The present invention relates to a method for printing CI for promoting a company or an individual on the surface of an optical disc such as a compact disc or a laser disc for DVD or video, which is currently commercially available.

The present invention provides a process of forming a master disk by forming a pitch, which is data information, on a substrate using a mastering machine, forming a pattern by exposure development using a mask in a pitch-formed data recording region, and using a mask. And coating a metal film on the exposed and developed substrate to separate the metal film and the substrate, thereby producing a stamper, and manufacturing an optical disc by pressing a thermoplastic resin using the stamper.

Therefore, in the process of manufacturing the promotional optical disk, the surface of the optically processed optical disk is further exposed by using a mask by using a mastering machine to form a curvature between the pitch and the pitch to further increase the scattering effect when reflecting light. As a result, CIs, BIs, and promotional texts of individuals or companies printed in areas other than the information recording area provide more vivid colors and vivid rainbow light with many scattering when reflecting light.

Description

Seam recording method of optical disk {Method Of Recoding Corporate Identity In Optical Disk}

The present invention provides a corporate identity for promoting a company or an individual on the surface of an optical disk such as a compact disk, a digital video disk, or a laser disk for video. It is about how to record.

Optical discs such as compact discs (CDs), laser discs (LDs), and digital video discs (DVDs), which record and reproduce optically reproducible audio or video information, are recorder players (LP) or tapes that are contact recording / media. Compared with the recorder, it can store large amount of information, and it has excellent qualitative effect when reproducing information, and it has been in the spotlight recently because of its excellent performance that it does not cause loss of stored information because it is excellent in magnetism or deterioration. The spread is on the rise.

Such a compact disc adopts a non-contact recording method using a laser, and as shown in FIG. 1, the compact disc is made of a transparent plastic disc A having a diameter of 120 mm and a thickness of 1.2 mm. As can be seen in FIG. 2, the data recording area 1 is arranged with a finite number of pit 10 of fine unevenness along the spiral track so that audio and video data and recorded data do not exist. Information about this is recorded digitally.

An aluminum film for reflecting the laser light is deposited on the pit 10 surface, and a coating film for protecting the aluminum film is formed thereon.

Therefore, when the laser is irradiated to the pit 10 for recording information, the mirror surface without the pit 10 is brightly reflected, and the pit 10 is darkly reflected, and the amount of light varies depending on the arrangement of the pit 10. The change is detected by an electrical signal and the recorded information is read and reproduced.

As described above, the optical disk as described above is typically a process of manufacturing a master disk (a), a stamper (b) and a substrate forming step (c). Is produced by.

In the master disk manufacturing step (a), the photoresist 32, which is a photosensitive agent, is applied to the glass substrate 31 polished to a high precision to a predetermined thickness, preferably 0.12 μm, and then a mastering machine is called a mastering machine. The device is used to irradiate a laser beam modulated according to the desired information, i.e. audio, video and no signal, at a constant linear velocity to partially expose the photoresist film, thereby recording the desired information and then recording the photoresist 31. Clean.

Subsequently, the metal film 33 is thinly deposited on the glass substrate 31 on which the surface is exposed according to the information to be recorded and recorded in the stamper manufacturing step (b), and the upper portion of the metal film 33 is deposited. The metal film 34, such as nickel (Ni), is coated using the electroplating method, and the plated metal film 34 is separated and attached to a separate metal substrate 35 to complete the stamper.

This stamper is used for injection molding 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, the substrate molding step (c) is entered and the thermoplastic resin 37 such as polycarbonate, PMMA, or APO is heated and injected into the stamper 36 manufactured through the above process. After manufacturing or compressing the UV curable resin 37 between the stamper 36 and the flat substrate, and then pressed and cured by irradiating with ultraviolet light, the optical disk substrate is manufactured by separating it.

The mastering machine for exposing the photosensitive agent applied to the glass substrate in the process of manufacturing the master disk (a) to record the desired information is generated by the laser 11 continuously oscillating as shown in FIG. The laser beam is modulated into information to be recorded by the optical modulator 12 under the control of the computer controller 22, and then reflected through the dichroic mirror 14 to reflect the light of the wavelength to the objective lens. After focusing at 15, the focus is 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 installed on the side of the objective lens 15 to drive the objective lens 15 up and down, thereby causing the laser beam to be a master disk ( 19) to ensure the correct focus.

In an optical disc manufactured by the above-described technique, the pit shows the information to be recorded on the optical disc, and indicates that the information is not recorded after the information to be recorded is recorded. Is formed.

As described above, optical discs capable of storing large amounts of information, having excellent quality effects when reproducing information, and excellent in magnetism and deterioration do not cause loss of stored information. As a result, companies and individuals are now widely used for commercial purposes or public relations of companies and individuals.

In other words, the diameter of the optical disc is a predetermined size, the disc or business card or outer peripheral surface is processed into various forms such as a flower shape, and information and various data that companies or individuals want to promote are recorded on the information recording surface. The capacity of the optical disc is extremely limited, and only a part of the storage area of the optical disk capable of storing a large amount of information is used.

Therefore, the company or individual visualizes the intangible information value of the corporate image in an area other than the area where the information is stored on the optical disc, and gives it to the public by giving the same to all objects that constitute the environment of the company or individual. It prints corporate identity (Corporate Identity), BI (Brand Identity), and other promotional texts to increase the memory effect and to increase the memory effect of the company and to effectively communicate the characteristics of the company and products to consumers.

As described above, when a promotional optical disc is manufactured by using a conventional optical disc manufacturing method, a master disc may be manufactured in order to insert a printed CI, BI, or promotional text into an area other than the area where the promotional information of the optical disc is recorded. In the process, the mastering machine is controlled separately to adjust the intensity and duration of the laser beam to insert CI, BI, and other promotional text to be printed.

In this case, the driving speed of the disk made of the master disk must maintain a constant angular velocity, and it is very complicated to control the mastering machine such as adjusting the intensity and duration of the laser beam. When the injection molding by the stamper by inserting the printed CI, BI, and promotional text is a problem that the sharpness is lowered so that consumers can not easily recognize.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned general problems, and its object is to visualize the intangible information value of an image of an individual or a company in an area other than the information area of an optical disc, thereby popularizing the transfer effect, the memory effect, and the company. CI, BI, and other promotional phrases that effectively convey the characteristics of the product and the product are printed by applying the screen technique to enhance the clarity and increase the refractive index of the reflected light to make the rainbow light with vivid saturation appear. And to improve the image.

1 is a schematic perspective view showing a part of a general optical disk.

Fig. 2 is a schematic diagram showing an excerpt of a pit, which is a recording state of information in an optical disc;

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

4 is a block diagram illustrating a configuration of an apparatus for recording information on a conventional optical disk.

5 is a process chart for recording a seed on an optical disc in accordance with the present invention.

Figure 6 is an illustration of a seed recorded on the surface of an optical disc in accordance with the present invention.

<Explanation of symbols for the main parts of the drawings>

51 glass substrate 52 photosensitive agent

53: photosensitive agent 54: mask

The present invention for achieving the above object is a process of forming a master disk by forming a pitch, the data information on the substrate using a mastering machine, and a pattern by the exposure phenomenon using a mask in the data recording region formed pitch Forming a stamp, coating a metal film on the exposed and developed substrate through a mask, separating the metal film from the substrate, and manufacturing a stamper, and manufacturing an optical disk by pressing a thermoplastic resin using the stamper. Provides a sea recording method of an optical disc comprising a.

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

According to the present invention, a manufacturing method of an optical disc printed with CI, BI, and advertisement text for promoting an individual or a company is produced by a process of producing a master disc, an exposure developing step, a stamper manufacturing step, and a substrate forming step.

This will be described in detail with reference to the accompanying FIG. 5.

In order to fabricate the optical disk, first, a master disk manufacturing step is performed. The photoresist film 52 is coated on the glass substrate 51 polished with high precision as shown in (a) to a predetermined thickness, preferably as shown in (b). 0.12㎛ thickness and then using the mastering machine device as shown in (c) converts the data for promotion by individuals or companies into data, and then irradiated with a laser beam modulated in accordance with the information of the converted photosensitive agent (52) The desired information is recorded by partially exposing the film, and then the pits 51a are extracted by washing the developing and photosensitive agent 52 film as shown in (d).

Thereafter, an exposure developing step for inserting an individual or company's CI or BI and promotional text into an area where information is not recorded is performed, which is performed on the information recording pit 51a formed through the above process. The photoresist film 53 is evenly applied to a predetermined thickness, and then the mask 54 on which the CI, BI, or promotional text of the individual or company manufactured with a film of silk or offset, or the like, is printed. After placing on the film 53, the UV light source is exposed by irradiating a predetermined illuminance amount for a predetermined time as shown in (G), and developing and cleaning the photoresist film 53 when the exposure is completed.

The pattern of the mask 54 produced using the film of silk or offset, etc., is manufactured so as not to affect the data recording area.

When the exposure is performed using a UV light source using a mask 54 on which an individual or a company's CI, BI, or promotional text is designed as described above, the upper surface 51b and the pit ( Between 51a and the pit 51a is etched and a predetermined curvature is formed.

As described above, when the exposure development process is completed, a stamper manufacturing step is performed, and as shown in (I), a predetermined method is applied to the upper surface 51b of the pit 51a etched to achieve a predetermined curvature. After the metal film 55 is deposited thinly, a metal film 56 such as nickel (Ni) is coated on the upper layer of the metal film 55 by using a plating method as shown in FIG.

Subsequently, as shown in (K), the glass substrate 51 and the metal film 55 are separated, and then a separate metal substrate 57 to be coupled to the injection machine on the upper surface of the metal film 56. The stamper is completed by attaching to the.

This stamper is used for injection molding 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, it enters the substrate forming step. As can be seen in (T), the stamper and the thermoplastic resin or ultraviolet curable resin 59 such as polycarbonate, PMMA, APO, etc. 58), pressed together as a wave (wave), and then irradiated with ultraviolet rays to cure as shown in (bottom), and then separated to prepare an optical disk substrate.

As described above, in the process of manufacturing the promotional optical disk, the surface of the optical disk, which is primarily processed through the mastering machine, is exposed once more using a mask to form curvature between the pitch and the pitch to reflect light. As the scattering effect is further enhanced, CIs, BIs, and promotional texts of individuals or companies printed in areas other than the information recording area provide more vivid colors and vivid rainbow light with many scattering when reflecting light.

Claims (7)

In the optical disk manufacturing method, Manufacturing a master disk by forming a pitch as data information on a substrate using a mastering machine; Forming a pattern in an exposure phenomenon using a mask in a data recording region having a pitch formed thereon; Manufacturing a stamper by separating a metal film from the substrate by coating a metal film on the exposed and exposed substrate through a mask; And a method of manufacturing an optical disc by pressing a thermoplastic resin using a stamper. The method according to claim 1, And a mask for exposing the master disk is made of film of silk or offset material. The method according to claim 1, CI or BI of a person or company and promotional text is printed on a mask for exposing the master disc. The method according to claim 1, And a mask for exposing the master disk is manufactured so as not to damage the pitch as promotional data. The method according to claim 1, The exposure phenomenon of the master disc using the mask includes the steps of applying a photoresist film to a predetermined thickness on the information recording pit; Placing a mask on which the CI, BI, or promotional text is designed on the photoresist film and then exposing the UV light source to expose the mask; And developing the exposed photoresist film. The method according to claim 1, And a pattern formed by exposure using a mask to etch a portion between the pitch processed by the mastering machine and the pitch to increase the reflective refractive index of the light disk. The method according to claim 6, And a UV light source for exposing the photosensitive film to a predetermined amount of light for a predetermined time.