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Title:
BLUE LASER DVD-R DISK USING OPTICAL DATA STORAGE MATERIALS
Document Type and Number:
WIPO Patent Application WO/1999/017284
Kind Code:
A1
Abstract:
The present invention provides a new information storage material, nonstoichiometric metal organic complex Ag¿1-$g(b)? (TCNQ), which is particularly suitable for digital video disk (DVD-R) written by blue laser (wavelength 450 nm) and red laser (wavelength 650 nm), wherein, Ag is metal element silver, TCNQ is tetracyano-p-quinodimethane C¿12?H¿4?N¿4?, $g(b) is a parameter chosen by its performance and $g(b)$m(F)0.4. The material can produce apparent absorption change under the incidence of the above-mentioned two type wavelength lasers. When used as optical recording medium, it has the characteristics of high signal to noise ratio, fast response and low cost. Moreover, its real erase-write numbers can be up to more than 20 times and its performance is superior to general DVD-R.

Inventors:
HUA ZHONGYI (CN)
CHEN GUORONG (CN)
Application Number:
PCT/CN1998/000070
Publication Date:
April 08, 1999
Filing Date:
May 04, 1998
Export Citation:
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Assignee:
HUA ZHONGYI (CN)
CHEN GUORONG (CN)
International Classes:
G03C1/72; G03C1/73; G11B7/0045; G11B7/243; G11B7/244; G11B7/249; (IPC1-7): G11B7/24
Foreign References:
US4574366A1986-03-04
US4731756A1988-03-15
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE (Shanghai 3, CN)
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