| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical information recording medium using a mono(aza)methin compound which can form a uniform thin film with a J-associated body of a coloring matter molecule by a simple technique, can form a thin film with a high refractive index and good optical characteristics, is suitable for high speed recording and high density recording, and is excellent in high sensitivity and short mark recording capability, and to provide its manufacturing method. <P>SOLUTION: By making it possible to coat and form conveniently the uniform thin film by utilizing a spin coating technique, obtaining the good optical characteristics (high refractive index) by using a J-associated body-formable coloring matter material (a composition comprising a mono(aza)methin coloring matter and an acid), making it possible to utilize a solvent having no possibility of invading a substrate by using the mono(aza)methin compound with a good solubility and phosphoric acid as the coloring matter for it, thereby, it is possible to provide an optical recording layer consisting of a thin film forming the J-associated body, to use a coloring matter thin film with a large difference in the refractive index before and after recording and with decomposition of the coloring matter being an endothermic reaction, and to apply on the substrate by the spin coating technique. <P>COPYRIGHT: (C)2008,JPO&INPIT |
