Patent ID: 6734469
Filing Date: 2004-05-11
Classification: C09K,H05B

Abstract:
An EL phosphor laminate thin film comprising a phosphor thin film, a dielectric thin film, an insulating thin film, and an underlying structure,wherein the phosphor thin film is between the insulating thin film and the dielectric thin film, wherein the dielectric thin film is between the phosphor thin film and the underlying structure, wherein the underlying structure comprises at least one selected from the group consisting of Li, Na, Au and Pb, wherein the phosphor thin film comprises a matrix material having the compositional formula: AxByOzSw:M wherein M is a metal element, A is at least one element selected from the group consisting of Mg, Ca, Sr, Ba and rare earth elements, B is at least one element selected from the group consisting of Al, Ga, In and rare earth elements, x is 1 to 5, y is 1 to 15, z is 0 to 30, and w is 3 to 30, and wherein the dielectric thin film comprises an alkaline earth-containing oxide, a titanium-containing oxide or both.