Phosphor multilayer and el panel

Details Phosphor multilayer and el panel Phosphor multilayer and el panel

C - Chemistry, Metallurgy

09

K

C09K 11/71 (2006.01) C09K 11/56 (2006.01) C09K 11/64 (2006.01) C09K 11/77 (2006.01) H01L 49/02 (2006.01) H05B 33/02 (2006.01) H05B 33/14 (2006.01)

Patent

CA 2352499

The invention aims to provide a phosphor multilayer eliminating a need for filters, having a satisfactory color purity and useful in white monochromatic EL devices, and an EL panel. Such objects are achieved by a phosphor multilayer comprising at least a first thin film and a second thin film wherein the first thin film is formed of a matrix material comprising barium aluminate as a main component, containing sulfur element and further containing Eu as a luminescent center, and the second thin film is formed of a matrix material comprising zinc sulfide as a main component, and an EL panel using the same.

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