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US 2010/0164942 A1Published application
Circuit and method for driving line repair amplifier
AssigneeDongbu HiTek Co., Ltd.
InventorChoong-Sik Ryu
Life of this patent
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Abstract
A circuit and method for driving a line repair amplifier includes a line repair amplifier which can be driven by using a single side input which can use an amplifier which drives a gray high side only and an amplifier which drives a gray low side only separately in a liquid crystal display device which uses a line repair amplifier.
Claims20
A apparatus comprising:
- a POL signal forwarding unit configured to forward a POL signal;
- an odd number/even number switching control unit configured to control switching such that the POL signal is forwarded to one of an odd numbered repair line and an even numbered repair line;
- a repair input switching unit configured to control switching of the odd numbered and the even numbered repair input lines under the switching control of the odd number/even number switching control unit;
- a repair output switching unit configured to control switching of the odd numbered and the even numbered repair output lines under the switching control of the odd number/even number switching control unit;
- a gray high driving amplifier connected between the repair input switching unit and the repair output switching unit and configured to forward a gray high signal;
- and
- a gray low driving amplifier connected between the repair input switching unit and the repair output switching unit configured to forward a gray low signal.
4 more elements
A method comprising:
- forwarding a switching control signal to one of an odd numbered and an even numbered repair line upon receiving one of a high POL signal and a low POL signal;
- switching such that an odd numbered repair input line is connected to a gray high driving amplifier which forwards a gray high signal in response to the switching control signal;
- switching such that an even numbered repair input line is connected to a gray low driving amplifier which forwards a gray low signal in response to the switching control signal;
- switching such that the gray high signal received in response to the switching control signal is forwarded to an odd numbered repair output line;
- and then
- switching such that the gray low signal received in response to the switching control signal is forwarded to an even numbered repair output line.
3 more elements
A method comprising:
- forwarding a switching control signal to one of an odd numbered and an even numbered repair line upon receiving one of a high POL signal and a low POL signal;
- switching such that an odd numbered repair input line is connected to a gray low driving amplifier which forwards a gray low signal in response to the switching control signal;
- switching such that an even numbered repair input line is connected to a gray high driving amplifier which forwards a gray high signal in response to the switching control signal;
- switching such that the gray low signal received in response to the switching control signal is forwarded to an odd numbered repair output line;
- and
- switching such that the gray high signal received in response to the switching control signal is forwarded to an even numbered repair output line.
3 more elements
Dependencies are inferred from the claim text.