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Optical information storage medium

A technology of optical information and media, which is applied in the field of optical information storage media with high storage density, and can solve problems such as wrong judgment of optical drives, poor writing signals, and inability to read and write actions of optical drives.

Inactive Publication Date: 2008-08-13
PRODISC TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But often in the second recording layer L 1 The obtained push-pull signal has a positive slope, which makes the judgment of the optical drive wrong, resulting in poor writing signals, and even makes the optical drive unable to perform normal read and write operations.

Method used

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Embodiment Construction

[0023] Preferred embodiments of the optical information storage medium of the present invention will be described below with reference to related drawings.

[0024] Please refer to Figure 5 The optical information storage medium 20 includes a first substrate 21 , a first recording build-up layer 22 , a spacer layer 23 , a second recording build-up layer 24 , and a second substrate 25 . In this embodiment, the optical information storage medium 20 is a write-once single-sided double-layer digital laser video disc (including DVD-R, DVD+R and HD-DVD), and is formed by an inversion process.

[0025] The first recording build-up layer 22 is disposed on the first substrate 21 , wherein the first recording build-up layer 22 generally includes a first recording layer 221 and a first reflective layer 222 . The material of the first recording layer 221 can be organic dye or inorganic material. In this embodiment, the material of the first recording layer 221 is organic dye as an exam...

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Abstract

A optical data memory media includes the first base board, the first recording layer, isolation layer, the second recording layer and the second base board. The first recording layer is fixed on the first base board, and the isolation layer is on the top of the first recording layer, the second recording layer is on the top of the isolation layer, and the second base board is on the top of the second recording layer. The second base board includes data area and shaking table which is on the data area and facing to the second recording layer.

Description

technical field [0001] The invention relates to an optical information storage medium, in particular to an optical information storage medium with high storage density. Background technique [0002] Facing the ever-increasing volume of video and audio information, increasing the data capacity of optical discs has always been the goal pursued by optical disc manufacturers. Digital Laser Video Disc (DVD) has occupied a certain proportion in the optical storage media market because it has a larger data storage capacity than CD. The current DVD has different appearance types, from single side single layer, dual side single layer, single side dual layer to dual side dual layer ), which also range in storage capacity from 4.7GB to 17GB. [0003] The single-sided double-layer DVD-R with a capacity of 8.5GB has attracted more and more attention from the market due to its large capacity and its writable once structure. like figure 1 As shown, a conventional single-sided double-la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/24G11B7/26G11B7/2403G11B7/24047
Inventor 张汉宜蔡正原
Owner PRODISC TECH INC