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Optical information storage medium

A technology of optical information and media, applied in the field of optical information storage media with high storage density, can solve the problem that the second recording layer cannot obtain sufficient reflectivity, and achieve the effect of preventing moisture or oxygen

Inactive Publication Date: 2008-10-29
PRODISC TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above-mentioned problems, the inventor of this case is eager to think of a novel optical information storage medium to solve the problem that the second recording layer cannot obtain sufficient reflectivity when the optical information storage medium of the known technology has a buffer layer

Method used

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Embodiment Construction

[0037] The preferred embodiments of the optical information storage medium according to the present invention will be described below with reference to related drawings.

[0038] Please refer to image 3 , the optical information storage medium 20 comprises a first substrate 21, a first recording layer 22, a first reflective layer 23, a spacer layer 24, a buffer layer 25, a second recording layer 26, a second reflective layer 27 , and a second substrate 28 . In this embodiment, the optical information storage medium 20 is taken as an example of a writable single-sided double-layer digital laser disc (DVD-R), and it is manufactured by a reverse process.

[0039] The first recording layer 22 is disposed on the first substrate 21 . The material of the first recording layer 22 can be organic dye or inorganic material. In this embodiment, the material of the first recording layer 22 is an organic dye, such as an azo dye, and is formed by spin coating.

[0040] The first reflect...

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Abstract

The invention relates to a light information storage media, which comprises the first base plate, the first reflective layer, the baffle layer, the buffer layer, the second record layer, the second reflective layer and the second base plate, wherein the baffle layer is above the first reflective layer; the buffer layer is above the baffle layer whose thickness is between 1nm and 50nm; the second record layer is above the buffer layer; the second record deposition layer obtains the reflectivity more than 16%, to make the CD-ROM driver read disc successfully; the buffer layer will protect the second record layer, to avoid it reacting with the non-rigid baffle layer; and the buffer layer has shield function to avoid water or oxygen into the second record layer; and in the high-speed disc, the buffer layer can be used as the thermal dispersion media of second record deposition layer.

Description

technical field [0001] The present invention relates to an optical information storage medium, in particular to an optical information storage medium with high storage density. Background technique [0002] With the advent of the information and multimedia era, 3C (Computer, Communication, Consumer electronics) products including computers, communications, and consumer electronics have increasing demands on the storage density and capacity of storage media. Traditional storage media can be roughly divided into two categories, namely magnetic recording media and optical information storage media. At present, the market is dominated by optical information storage media, which include CD-ROM, CD-R, CD-RW, CD-ROM, and CD-ROM. Digital Laser Video Disc (DVD-ROM), Write Once Digital Laser Video Disc (DVD-R), Rewritable Digital Laser Video Disc (DVD-RW, DVD+RW), and Dynamic Random Memory Digital Laser Video Disc (DVD- RAM) and so on. [0003] Facing the ever-increasing amount of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/24G11B7/24047
Inventor 王志忠张汉宜蔡正原
Owner PRODISC TECH INC
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