Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1995-01-12
1996-06-11
Pascal, Robert J.
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
3151691, 3151694, 315349, G09G 310
Patent
active
055258689
ABSTRACT:
A Field Emission Display ("FED") is disclosed having a brightness to project images. To achieve this benefit, the FED includes a pixelator is coupled to a display for displaying and projecting the image. By design, the pixelator conducts a drive current passing through the display grid corresponding to a degree of brightness in the resulting panel display. A first resistor having a first value is coupled between the pixelator and a voltage node or ground. Moreover, a second resistor having a second value at most one half of the first value is employed. A switch for connecting the first resistor in parallel with the second resistor is closed when a control signal is received. When the switch is enabled, the equivalent resistance between the pixelator and a voltage node or ground is substantially reduced. In another embodiment, a tapped resistor replaces the first resistor and the second resistor. When the control signal is received, a portion of the drive current is shunted through the switch.
REFERENCES:
patent: 3723852 (1973-03-01), Peterson et al.
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patent: 4866349 (1989-09-01), Weber et al.
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patent: 5162704 (1992-11-01), Kobori et al.
patent: 5210472 (1993-05-01), Casper
patent: 5283500 (1994-02-01), Kochanski
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patent: 5313140 (1994-05-01), Smith et al.
patent: 5357172 (1994-10-01), Lee et al.
Micron Display
Pascal Robert J.
Philogene Haissa
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