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OwnerSey-Shing Sun, Jim Kane +1inventors
InventorsSey-Shing Sun, Jim Kane, P. Niel Yocom
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A light emitting phosphor having improved luminance is incorporated into an ACTFEL device having front and rear electrode sets, a pair of insulators sandwiched between the front and rear electrode sets, and a thin film electroluminescent laminar stack which includes a phosphor layer having the formula M.sup.II S:D,H where M.sup.II is taken from the group calcium, strontium, barium, and magnesium, S=sulfur, D is taken from the group copper, lead, gold, silver, magnesium, antimony, bismuth and arsenic, and H is taken from the group fluorine, chlorine, bromine, and iodine. Deep blue and green chromaticity phosphors may be obtained through selection of multiple co-dopants and adjusting their relative concentrations.
A light emitting phosphor material for an alternating current thin-film electroluminescent device that includes said phosphor material sandwiched between a pair of dielectric layers suitable to substantially prevent DC current from flowing therebetween, where said phosphor material comprises M.sup.II S:D,H,F wherein,
An alternating current thin film electroluminescent device comprising front and rear sets of electrodes sandwiching a pair of insulators, said pair of insulators sandwiching thin film electroluminescent phosphor material therebetween suitable to substantially prevent DC current from flowing therebetween, said phosphor material comprising a thin film layer comprising M.sup.II S:D,H,F wherein,
Dependencies are inferred from the claim text.