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DVD piece and its manufacturing method

A manufacturing method and technology of optical discs, which are applied in the fields of optical record carrier manufacture, optical recording/reproduction, optical record carrier, etc., and can solve the problems of low production stability, increased manufacturing cost, loss, etc.

Inactive Publication Date: 2004-01-28
RYTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Moreover, due to the different printing materials or patterns used during printing, the stress applied to the finished product 160 may cause the optical disc 180 to warp, thus making it more difficult to control the quality of the optical disc 180, leading to production stability lower
[0009] Moreover, the known optical disc 180 is printed after the finished product 160 is formed. If an error occurs during the printing process, the entire optical disc 180 must be reworked (Rework), and the entire optical disc 180 must be reworked. Must be scrapped, resulting in greater losses and increased manufacturing costs
[0010] Moreover, the printing layer 170 is printed on the surface of the finished product 160, that is, the printing layer 170 will be in contact with the external environment, so the printing layer 170 is quite easy to be damaged due to external environmental factors

Method used

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  • DVD piece and its manufacturing method
  • DVD piece and its manufacturing method
  • DVD piece and its manufacturing method

Examples

Experimental program
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Embodiment Construction

[0046] figure 2 Shown is the manufacturing flow chart of the DVD disc according to the preferred embodiment of the present invention. First, please also refer to figure 2 Step S200 with image 3 , in step S200, the base plate 300 and the first overlay plate 310 required for the DVD disc are formed, wherein the base plate 300 and the first overlay plate 310 are formed by injection molding, for example. When the DVD disc to be formed is a write-once disc, a recording layer 320 made of an organic dye material must be formed on the substrate 300. The method for forming the recording layer 320 is, for example, to use a rotary In the Spin Coating method, the recording layer 320 is used for recording by using the thermal energy of the laser beam to melt or decompose the organic dye material to form concave holes during the recording process.

[0047] Next, please also refer to the figure 2 Step S210 with Figure 4, in step S210, a reflective layer 330 made of metal is formed ...

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Abstract

Printing layer is formed on semi-finished product of optical disk or on cover plate first. Then, agglutination between semi finished product and cover plate is carried out to obtain DVD optical disc. The method raises stability of manufacturing optical disc and lowers material loss when defective goods are produced. Moreover, in the said manufacturing method, a printing layer can be formed on inner layer of DVD disk or each layer can be formed on inner layer and surface of DVD disk providing special appearance and keeping others from forging as well as adding additional value to optical disc.

Description

technical field [0001] The present invention relates to a DVD disc and its manufacturing method, and in particular to a method of disposing a printing layer on the inner layer of the disc, or disposing a printing layer on the inner layer and the surface of the disc respectively. DVD disk and its manufacturing method. Background technique [0002] Due to the advantages of high storage density, small size, long storage period, low cost, high compatibility and low error rate, compact disks (CDs) have become the mainstream of optical information recording media. However, with the popularization of multimedia (Multimedia) application information, many data contain a large amount of text, sound and video, and the capacity of the original CD or CD-R disc of 650MB can no longer meet the audio-visual needs of the next generation. , a digital versatile disc (Digital VersatileDisc, DVD) with a storage capacity that is several times that of CD and CD-R, and a laser with a wavelength sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/2403G11B7/24067G11B7/26
Inventor 林炳煌林怡秀
Owner RYTEC CORP