Patent ID: 7078149

Claim:
An optical recording medium, comprising: a substrate; a dye layer on the substrate; and a reflection layer on the dye layer, wherein the dye layer comprises a cyanine type dye and an azo metal chelate compound has the following formula (I): wherein M is a metal ion; R 1 is a hydrogen atom, a linear or branched alkyl group containing 1 to 6 carbon atoms, amino group, alkyl amino group or toluidinyl group; R 2 is a hydrogen atom, a halogen atom, an ether group, an ester group or a linear or branched alkyl group containing 1 to 6 carbon atoms; R 3 is a hydrogen atom or a linear or branched alkyl group containing 1 to 6 carbon atoms; R 4 is a hydrogen atom, a halogen atom or a linear or branched alkyl group containing 1 to 6 carbon atoms; and A1 is a heterocyclic derivative group constituted by carbon atoms and nitrogen atoms The optical recording medium according to claim 1 , wherein A 1 is selected from a compound of A-1 to A-21: wherein each E 1 to E 38 is selected from a group consisting of a hydrogen atom, a halogen atom, a nitro group, a cyano group, an amino group, a formyl group, a hydroxyl group, an alkylamino group, a substituted or unsubstituted linear, branched or cyclic alkyl group containing 1 to 15 carbon atoms, a alkoxyl group, an alkyoxycarbonyl group, a linear, branched or cyclic alkenyl group, a hydroxylalkyl group, an alkyoxycarboxyl group, an alkyoxycarbonylallyl group, alkylthio group, an alkylsulfonyl group, an aryl group, an alkyl hetrocyclic group.