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Optical recording medium

一种光记录介质、记录层的技术，应用在光学记录载体、光学记录系统、数据记录等方向，能够解决光记录介质厚、制造成本增加、昂贵等问题，达到高记录敏感度的效果

Inactive Publication Date: 2011-04-20
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, the optical recording medium is thick and the manufacturing cost increases
In particular, the reflective layer 50 contains a very expensive substance such as AgPdCu or AgNdCu, and its thickness is about 700 to 1000 Therefore, the manufacturing cost of the optical recording medium increases, and since the thickness of the reflective layer 50 of the optical recording medium is thicker

Method used

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Examples

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Embodiment Construction

[0053] Hereinafter, preferred embodiments of the present invention will be explained in detail with reference to the accompanying drawings.

[0054] Figure 4 is a sectional view showing the structure of the optical recording medium according to the first embodiment of the present invention. Figure 5 is showing slices recorded to Figure 4 A cross-sectional view of one form of recording mark produced in the case of an optical recording medium. and, Image 6 is showing the slot record to Figure 4 A cross-sectional view of one form of recording mark produced in the case of an optical recording medium.

[0055] exist Figure 4 Among them, the optical recording medium of the present invention includes a substrate 200 , an information recording layer 210 , and an optical transmission layer 220 .

[0056] The substrate 200 is used to support the shape of the optical recording medium. Ceramics, glass, resin, etc. are generally used as the material of the substrate 200, and polyc...

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Abstract

The present invention relates to an optical recording medium. The optical recording medium according to one embodiment of the present invention includes a substrate and an information recording layer located on the substrate. The information recording layer includes a first recording layer containing at least one element selected from the group consisting of Ag, In, Ge, Sb and Te, a second recording layer containing at least one element selected from the group consisting of Si, Sn, Sb and Ge, and a third recording layer containing at least one element selected form the group consisting of Ni,Ag, Au, W, Cr and Mo. Therefore, the optical recording medium of the present invention may reduce the thickness and manufacturing cost by consisting of three recording layers and eliminating the reflective layer and the dielectric layer.

Description

technical field [0001] The present invention relates to optical recording media. In particular, the present invention relates to recordable optical recording media consisting of three recording layers. Background technique [0002] With the advent of the multimedia era in which video signals including moving images and still images, audio signals, and computer data information are comprehensively processed, package media including all kinds of optical discs like CDs and DVDs have been widely used. Recently, active efforts have been made to provide optical recording media for recording media for mobile phones, digital cameras, broadcasting, and movies. [0003] Optical recording media are classified into read only memory (ROM) optical recording media, recordable optical recording media capable of recording information only once, and rewritable optical recording media capable of writing, reading, and repeatedly erasing information. [0004] The recordable optical recording m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/24G11B7/243
CPCG11B7/24038G11B7/243G11B7/00455G11B7/24018G11B7/2433
Inventor 李光烈
Owner LG ELECTRONICS INC
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