Flat panel display with magnetic field emitter
AssigneeNational Semiconductor Corporation
InventorJohn O. O'Boyle
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AssigneeNational Semiconductor Corporation
InventorJohn O. O'Boyle
Estimating the term…
A flat panel display device (50) includes magnetic field emitter elements (52). The emitter elements (52) include a dopant ferromagnetic material (56) used to produce a permanent magnet in the emitter elements (52). The permanent magnet in the emitter elements (52) generates a magnetic field (B) used to focus the electrons emitted from the tips of the emitter elements (52). The flat panel display device (50) further includes a voltage source (70) for producing an electric field (E) between a cathode electrode (54) having a gate electrode (58), and an anode electrode (60) having phosphor regions (62) disposed between black matrix regions (61). The magnetic field (B) provides a restoring magnetic force to collimate the electrons toward the phosphor regions (62) to produce a high brightness display.
A flat-panel display device, comprising:
A flat-panel display device, comprising:
A method of operating a flat-panel display device, comprising:
Dependencies are inferred from the claim text.