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US 8,148,889 B1Granted
Low voltage phosphor with film electron emitters display device
AssigneeCopytele, Inc.
InventorsFrank J. DiSanto, Denis A. Krusos
Life of this patent
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Abstract
A flat panel display including: a film electron emitting cathode; and, an anode including: a plurality of pixels, a plurality of TFT circuits, each being associated with a corresponding one of the circuits; and a conductive frame laterally separating the pixels and substantially isolating their respective electric fields.
Claims22
A flat panel display comprising:
- a cathode of film emitters that emit electrons when a low voltage is applied;
- and
- an anode comprising:
- a plurality of pixels,
- a plurality of TFT circuits, each being associated with a corresponding one of the plurality of pixels;
- and
- a voltage source being associated with a control frame laterally separating the pixels and substantially isolating their respective electric fields, wherein the plurality of TFT circuits providing a first voltage to said corresponding one of the plurality of pixels and the voltage source providing a second voltage, concurrently, to said control frame surrounding the corresponding one of the plurality of pixels, wherein the second voltage is no greater than one-half that of the first voltage.
4 more elements
A flat panel display comprising:
- a cathode of film emitters that emit electrons;
- an anode comprising:
- a plurality of pixels, each including at least one phosphor capable of emitting light;
- and
- a control frame surrounding each of the plurality of pixels;
- and
- means for applying a pixel voltage to selected ones of said pixels, said pixel voltage being associated with a data amplitude applied to the selected ones of said pixels;
- and
- means for applying a control voltage, concurrently, to sections of the control frame corresponding to the selected ones of said pixels, wherein the control frame voltage is equal to pixel voltage/n, where “n” is no less than 2.
6 more elements
Dependencies are inferred from the claim text.