Patent ID: 8194023

Claim:
A driving circuit of a flat panel display, comprising: a first data signal processing unit for converting a first display information that will be displayed on the flat panel display into a positive gamma value; a second data signal processing unit for converting a second display information that will be displayed on the flat panel display into a negative gamma value; a first signal amplifying unit for amplifying the positive gamma value from the first data signal processing unit to output the amplified positive gamma value to a switch unit; and a second signal amplifying unit for amplifying the negative gamma value from the second data signal processing unit to output the amplified negative gamma value to the switch unit; wherein the switch unit for selectively transferring the amplified positive and negative gamma values to an output driving unit; the output driving unit for outputting the amplified negative and positive gamma values to the flat panel display; the output driving unit enhances driving capability of a signal passing through the switching unit and transmits the signal directly to a flat display; the switch unit comprises a feedback switch unit for feedback of an output of the output driver unit as an input of one of the first signal amplifying unit and the second signal amplifying unit; the first data signal processing unit and the second data signal processing unit control two channels of the flat panel display; the output driving unit includes: a first output driver for receiving one of the amplified positive and negative gamma values from the switch unit to output a driving signal corresponding to a first channel; and a second output driver for receiving the other one of the amplified positive and negative gamma values from the switch unit to output a driving signal corresponding to a second channel; and the switch unit includes: a first switch for transferring an output of the first signal amplifying unit to the first output driver; a second switch for transferring the output of the first signal amplifying unit to the second output driver; a third switch for transferring an output of the second signal amplifying unit to the first output driver; a fourth switch for transferring the output of the second signal amplifier to the second output driver; a fifth switch for feedback of an output of the first output driver as an input of the first signal amplifying unit; a sixth switch for feedback of the output of the first output driver as an input of the second signal amplifying unit; a seventh switch for feedback of an output of the second output driver as an the input of the first signal amplifying unit; and an eighth switch for feedback of the output of the second output driver as the input of the second signal amplifying unit.