Phosphor thin film, preparation method, and el panel

Details Phosphor thin film, preparation method, and el panel Phosphor thin film, preparation method, and el panel

C - Chemistry, Metallurgy

09

K

C09K 11/64 (2006.01) C09K 11/56 (2006.01) C09K 11/62 (2006.01) C09K 11/77 (2006.01) H01L 49/02 (2006.01) H05B 33/02 (2006.01) H05B 33/14 (2006.01)

Patent

CA 2352590

The invention aims to provide a phosphor thin film eliminating a need for filters, having a satisfactory color purity, suited for RGB in full-color EL displays, enabling to simplify the manufacture process of full-color EL panels, and offering the advantages of minimized variation of luminance, increased yields, and reduced manufacture cost, a method for preparing the same and an EL panel. Such objects are achieved by a phosphor thin film formed of a matrix material comprising an oxysulfide consisting of at least one compound selected from rare earth thioaluminates, rare earth thiogallates and rare earth thioindates, in which oxygen is incorporated, the matrix material further containing an element serving as a luminescent center, a method for preparing the same, and an EL panel using the same.

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