Abstract: A method for reducing an off-current of a field effect transistor in which two electrodes of the field effect transistor have fixed voltage values and the rest electrode has an alternating voltage value by an AC voltage pulse generator to form an off-stress near source and drain junctions in turn.

Abstract: A method for reducing an off-current of a field effect transistor in which two electrodes of the field effect transistor have fixed voltage values and the rest electrode has an alternating voltage value by an AC voltage pulse generator to form an off-stress near source and drain junctions in turn.

Abstract: An analog buffer includes a comparator unit for comparing an input signal to be charged on a signal line of a display panel with an output signal charged on the signal line of the display panel to output a control signal; and a current switching unit for discharging an output current from the signal line of the display panel or charging an input current on the signal line of the display panel in accordance with the control signal output by the comparator unit the comparator unit smallest and to thus minimize leakage current.

Abstract: The present invention provides an analog buffer and a liquid crystal display apparatus using the same and a driving method thereof capable of reducing power consumption. An analog buffer according to the present invention includes: a comparator including an inverter connected in series to the input line; a feedback switch connected between the input line and the output line; and an output inverter, connected between the comparator and the output line, for pre-charging any one of driving voltages of a first driving voltage and a second driving voltage into the output line for a reset interval, and for cutting-off the first and second driving voltages when the pre-charged voltage is fed back via the feedback switch to the input line so that it is converged to the input voltage for a feedback interval.

Abstract: An analog buffer for buffering an input voltage to an output line is provided. The analog buffer includes a constant current source and a comparator. The constant current source supplies a constant current to the output line, and the comparator compares a voltage charged on the output line with the input voltage to turn-off the constant current source if it is determined that the voltage charged on the output line corresponding to the input voltage is buffered to the output line.

Abstract: An analog buffer circuit for a liquid crystal display (LCD) device includes a first capacitor and an inverter connected in series between an input terminal and an output terminal, a first reset switch connected between the input terminal and the first capacitor to reset the first capacitor, a first feedback switch connected to a first node between the first capacitor and the first reset switch, a second capacitor and a second feedback switch connected in series between a second node and a third node, the second node connected between the first capacitor and the inverter, and the third node connected between the inverter and the output terminal, a second reset switch connected between the second node and the third node to reset the inverter, and a third reset switch connected to a fourth node between the second capacitor and the second feedback switch to reset the second capacitor.

Abstract: In an analog buffer and a method for driving the same, by providing a pair of switches at a last comparing unit, a voltage level of an output signal is precharged as high as a source voltage level during a first offset period in an Nth initializing period, the voltage level of the output signal is discharged as high as a voltage level of a desired data signal during a discharging period in an Nth signal-applied period, then, the discharged voltage of the output signal, which overshoots a desired data voltage is compensated during a second offset period in the Nth signal-applied period to thereby output an accurate data voltage.

Abstract: A system for reducing an OFF-current in a thin film transistor of a liquid crystal display device includes gate and data lines crossing each other, a pixel thin film transistor including gate, source and drain electrodes, the gate electrode connected to the gate line and the source electrode connected to the data line, a liquid crystal capacitor connected to the drain electrode of the pixel thin film transistor, a first switch thin film transistor connected to a first end of the data line, a second switch thin film transistor connected to a first end of the gate line, a first voltage source electrically connected to the drain electrode of the pixel thin film transistor, a second voltage source connected to a source electrode of the first switch thin film transistor, a third voltage source connected to gate electrodes of the first and second switch thin film transistors, and a fourth voltage source connected to a source electrode of the second switch thin film transistor.

Abstract: An analog buffer includes a comparator unit for comparing an input signal to be charged on a signal line of a display panel with an output signal charged on the signal line of the display panel to output a control signal; and a current switching unit for discharging an output current from the signal line of the display panel or charging an input current on the signal line of the display panel in accordance with the control signal output by the comparator unit the comparator unit smallest and to thus minimize leakage current.

Abstract: The prevent invention provides an analog buffer and a liquid crystal display apparatus using the same and a driving method thereof capable of reducing power consumption. An analog buffer according to the present invention includes: a comparator including an inverter connected in series to the input line; a feedback switch connected between the input line and the output line; and an output inverter, connected between the comparator and the output line, for pre-charging any one of driving voltages of a first driving voltage into the output line for a reset interval, and for cutting-off the second driving voltages when the pre-charged voltage is fed back via the feedback switch to the input line so that it is converged to the input voltage for a feedback interval.

Abstract: In an analog buffer and a method for driving the same, by providing a pair of switches at a last comparing unit, a voltage level of an output signal is precharged as high as a source voltage level during a first offset period in an Nth initializing period, the voltage level of the output signal is discharged as high as a voltage level of a desired data signal during a discharging period in an Nth signal-applied period, then, the discharged voltage of the output signal, which overshoots a desired data voltage is compensated during a second offset period in the Nth signal-applied period to thereby output an accurate data voltage.

Abstract: A system for reducing an OFF-current in a thin film transistor of a liquid crystal display device includes gate and data lines crossing each other, a pixel thin film transistor including gate, source and drain electrodes, the gate electrode connected to the gate line and the source electrode connected to the data line, a liquid crystal capacitor connected to the drain electrode of the pixel thin film transistor, a first switch thin film transistor connected to a first end of the data line, a second switch thin film transistor connected to a first end of the gate line, a first voltage source electrically connected to the drain electrode of the pixel thin film transistor, a second voltage source connected to a source electrode of the first switch thin film transistor, a third voltage source connected to gate electrodes of the first and second switch thin film transistors, and a fourth voltage source connected to a source electrode of the second switch thin film transistor.

Abstract: A method for reducing an off-current of a field effect transistor in which two electrodes of the field effect transistor have fixed voltage values and the rest electrode has an alternating voltage value by an AC voltage pulse generator to form an off-stress near source and drain junctions in turn.

Abstract: A method for manufacturing a thin film transistor includes the step of forming a protective layer for protecting source and drain metal lines during a cleaning process. The protective layer is preferably made of silicon nitride and preferably has a thickness of less than about 2000 angstroms.

Abstract: A method for manufacturing a thin film transistor includes the step of forming a protective layer for protecting source and drain metal lines during a cleaning process. The protective layer is preferably made of silicon nitride and preferably has a thickness of less than about 2000 angstroms.