Phospor for display and field-emission display
First Claim
1. A phosphor for a display, which is provided with a zinc sulfide phosphor which is excited by an electron beam having an aceleration voltage of 3 kV to 15 kV to emit blue light, wherein the zinc sulfide phosphor has a crystal structure of a hexagonal system.
1 Assignment
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Accused Products
Abstract
Phosphors for a display, which emit blue light and green light, comprise zinc sulfide phosphors having a crystal structure of a hexagonal system. The zinc sulfide phosphor which emits blue light has an average particle diameter in a range of (0.0169×VE1.9+2.49)±20%[μm] when an electron beam has an acceleration voltage VE. The zinc sulfide phosphor which emits green light has an average particle diameter in a range of (0.017×VE1.9+2.58)±20%[μm]. A phosphor for a display, which emits red light, comprises a yttrium oxysulfide phosphor or a yttrium oxide phosphor and has an average particle diameter in a range of (0.023×VE1.95+2.88)±20%[μm]. These phosphors for a display are used for a display which has an electron beam having an acceleration voltage of 3 kV to 15 kV as an excitation source.
23 Citations
20 Claims
- 1. A phosphor for a display, which is provided with a zinc sulfide phosphor which is excited by an electron beam having an aceleration voltage of 3 kV to 15 kV to emit blue light, wherein the zinc sulfide phosphor has a crystal structure of a hexagonal system.
- 8. A phosphor for a display, which is provided with a zinc sulfide phosphor which is excited by an electron beam to emit green light, wherein the zinc sulfide phosphor has a crystal structure of a hexagonal system.
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14. A phosphor for a display, which is provided with a yttrium oxysulfide phosphor or a yttrium oxide phosphor which is excited by an electron beam having an acceleration voltage of 3 kV to 15 kV to emit red light, wherein the yttrium oxysulfide phosphor or the yttrium oxide phosphor has an average particle diameter in a range of (0.023×
- VE1.95+2.88)±
20%[μ
m] when the electron beam has an acceleration voltage VE (kV). - View Dependent Claims (15, 16, 17, 18)
- VE1.95+2.88)±
Specification