Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides
Reexamination Certificate
2005-09-06
2005-09-06
Koslow, C. Melissa (Department: 1755)
Compositions
Inorganic luminescent compositions
Compositions containing halogen; e.g., halides and oxyhalides
C252S30160S, C313S503000, C428S690000, C428S917000, C427S066000, C427S069000, C427S070000
Reexamination Certificate
active
06939482
ABSTRACT:
A phosphor thin film includes a matrix material expressed by a composition formula AxByOwSz, and a substance functioning as a luminescence center in the matrix material. In the composition formula, A represents at least one element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn; B represents at least one rare-earth element selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; O represents oxygen atoms; and S represents sulfur atoms, respectively. Molar ratios are respectively set as 0<x<5, 0<y<4, 0≦z<8, and 0≦w≦8, and 0=z=w never holds true.
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Ohura et al. “Properties of Red-Color CaS:Eu Thin Film El Device,” ITEJ Technical Report, vol. 16, No. 76, Nov. 1992, pp. 7-11, abstract.
Kawanishi Mitsuhiro
Miura Noboru
Yano Yoshihiko
Koslow C. Melissa
Miura Noboru
Oliff & Berridg,e PLC
TDK Corporation
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