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US 2011/0215709 A1Published application
Luminescent material
AssigneeKabushiki Kaisha Toshiba
InventorRyosuke HIRAMATSU
Life of this patent
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Abstract
According to one embodiment, a luminescent material includes luminescent material particles having a composition represented by formula A. (Mg1-w,AEw)a(Ge1-x,Snx)bOc,Cld:zMn A where AE is at least one selected from Ca and Sr, and 3.5≦a≦4.4, 0.8≦b≦1.1, 5.5≦c≦7.0, 0<d≦0.41, 0<w≦0.05, 0<x≦0.10, and 0<z≦0.03.
Claims20
A luminescent material comprising:
- luminescent material particles having a composition represented by formula A:
- (Mg1-w,AEw)a(Ge1-x,Snx)bOc,Cld:zMn A
- where AE is at least one selected from Ca and Sr, a, b, c, d, w, x and z respectively satisfies
- 3.5≦a≦4.4, 0.8 ≦b≦1.1, 5.5≦c≦7.0,
- 0<d≦0.41, 0<w≦0.05, 0<x≦0.10, and
- 0<z≦0.03.
3 more elements
Dependencies are inferred from the claim text.