Gallate-based phosphors for low-velocity electron excited...

Details Gallate-based phosphors for low-velocity electron excited... Gallate-based phosphors for low-velocity electron excited...

H - Electricity

01

J

31/174, 313/81

H01J 1/63 (2006.01) C09K 11/62 (2006.01) H01J 31/15 (2006.01)

Patent

CA 1043848

ABSTRACT OF THE DISCLOSURE A fluorescent display device capable of emitting blue to green light of high luminance and purity is composed of a vacuum tube having an anodic plate bearing thereon a fluorescent screen and a cathode facing the fluorescent screen. The fluorescent screen comprises a gallate-based phosphor represented by the formula A(Zn1-x'Mgx)O?Ga2O3:BMn wherein 0.6 ? A ? 1.2, O ? B ? 5 x 10-2, and 0 ? x ? 1Ø The vacuum tube may further contain a control grid between the anodic plate and the cathode.

243886

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