Abstract: There is provided a display panel driving method, which groups display cells included in scanning electrodes and common electrodes into a plurality of groups, and divides and drives a frame into a plurality of sub-fields for each group. Each of the plurality of sub-fields includes an address period and a sustain period. In the address period, cells to be displayed are selected, while in the sustain period, high levels and low levels of a sustain discharge signal are applied alternately to the scanning electrodes and the common electrodes to perform a sustain discharge. In at least one sustain period, high level potentials of the sustain discharge signal applied to the scanning electrode are the same in all the groups and the high level potentials of the sustain discharge signal are applied at the same time to all the groups.

Abstract: A display panel driving apparatus that applies a rising ramp voltage in a reset period includes a first voltage applying unit outputting the first voltage, a second voltage applying unit outputting the second voltage, a first ramp switching unit coupled between the first and second voltage applying units to control the rising ramp voltage, and a first scanning switching unit coupled between the first ramp switching unit and the electrode to apply a high level scanning voltage to the electrode. The rising ramp voltage is applied to the electrode when the first voltage is output from the first voltage applying unit, the first ramp switching unit is turned on, and the first scanning switching unit is turned on. A ramp reset signal is generated without a conventional path switch that carries out a rising ramp interval in the reset period.

Abstract: An apparatus and method for driving a plasma display panel. In an idle period, a lowest voltage is applied to each circuit of a driving board of a plasma display panel so that a bootstrap capacitor of a switch driving circuit may enter a chargeable state. Therefore, it is possible not only to make the capacity of the bootstrap capacitor of each circuit small, but also to effectively prevent an abnormal discharge or an abnormal operation of each circuit when an abnormal image is inputted.

Abstract: A PDP driving method that reduces the reset voltage of the PDP driving waveforms to make it possible to use low-voltage elements and to achieve high contrasts is disclosed. Since conventional PDP waveforms require very high reset voltages, it causes a problem of intense background light emissions, low contrasts, use of high-voltage components, and increased circuit costs. According to the driving waveforms of the present invention, relative voltage differences between the address electrode and the X electrode and between the X electrode and the Y electrode are considered to design waveforms of low reset voltages, thereby providing high contrasts and low-cost circuit.

Abstract: A plasma display panel driving apparatus is disclosed. The apparatus may include a first switch coupled between a first power source for supplying a first voltage and a first node; a second switch coupled between a second power source for supplying a second voltage and the first node; a capacitor, for charging a fourth voltage corresponding to a difference between a third voltage and the first voltage, of which a cathode is coupled to the first node; a third switch coupled between an anode of the capacitor and a second node that is coupled to a first electrode of the panel capacitor; and a fourth switch coupled between the first node and the second node.

Abstract: A driving apparatus of a plasma display panel with a reduced number of low pass filters due to coupling clamping diodes to charge and discharge switches of a power recovery circuit. The driving circuit overcomes electromagnetic interference and noise problems and effectively clamps voltages.

Abstract: In driving a Plasma Display Panel (PDP), when a driving operation moves from an address period to a sustain period, low-voltage driving switches of all of the scan ICs are turned on at the same time after the drain voltage and source voltage of each of them are made equal via a power recovery circuit under the condition that the outputs of the scan ICs are floating. Therefore, when the switches are turned on, no current flows therethrough, thereby making it possible to solve instability of a driving circuit and noise and EMI therein.

Abstract: An apparatus and method for driving a plasma display panel and includes two ramp switches. The two ramp switches are used to apply a two-step falling ramp waveform to a Y electrode of the plasma display panel in a reset period, thereby lowering a withstand voltage of a switch which is formed on a main path to block the flow of current when the falling ramp waveform is applied.

Abstract: A method for driving a plasma display panel that has a plurality of scan electrodes and sustain electrodes arranged in pairs, and a plurality of address electrodes intersecting the scan electrodes and the sustain electrodes and being electrically isolated from the scan electrodes and the sustain electrodes. The method includes applying a voltage of a rising ramp waveform having at least two slopes and a voltage of a falling ramp waveform having at least two slopes to the scan electrodes during a reset period. Thus, the method applies the reset waveform having at least two slopes in the reset step so as to reduce the reset period and allow a stable reset operation.

Abstract: A method of driving a plasma display panel including erasing wall charges formed in a previous sub-field, applying X and Y scan pulses of first and second polarities to the X and Y electrode lines of a first pair of the X and Y groups that includes a first pair of the X and Y electrode lines, and an X scan pulse of a second polarity to form wall charges of the second polarity around the Y electrode lines, applying a display data signal corresponding to the first pair of the X and Y electrode lines to address electrode lines while applying a bias voltage of the first and second polarities to the X and Y electrode lines to erase the wall charges formed at discharge cells which are not to be displayed, and repeatedly applying sustain pulses to the X and Y electrode lines.

Abstract: A method for driving a plasma display panel that has a plurality of scan electrodes and sustain electrodes arranged in pairs, and a plurality of address electrodes intersecting the scan electrodes and the sustain electrodes and being electrically isolated from the scan electrodes and the sustain electrodes. The method includes applying a voltage of a rising ramp waveform having at least two slopes and a voltage of a falling ramp waveform having at least two slopes to the scan electrodes during a reset period. Thus, the method applies the reset waveform having at least two slopes in the reset step so as to reduce the reset period and allow a stable reset operation.

Abstract: A PDP driving and power recovery method. X and Y electrode voltages of a panel capacitor are maintained to be V2 and V1 volts, respectively. The Y electrode voltage is converted into V2 to store energy in the inductor, the energy stored therein is used to convert the X electrode voltage into V1, and the voltages at the X and the Y electrodes are maintained to be V1 and V2, respectively. The voltage at the X electrode is converted into V2 to store energy in the inductor, and the energy stored therein is used to convert the voltage at the Y electrode into V1.

Abstract: A device for driving a PDP for arranging scan electrodes and sustain electrodes in parallel for each display line, and arranging address electrodes to be crossed with the scan electrodes and the sustain electrodes. The device has a first switch and a second switch that are coupled in series between a first voltage and a second voltage, a capacitor coupled between a contact point of the first switch and the second switch and a third voltage. A rising ramp switch for forming a constant current is coupled to the third voltage at a first end of the rising ramp switch; and a main path switch is coupled between the contact point of the first and second switches and another end of the rising ramp switch, for forming a constant current.

Abstract: A method of driving a plasma display panel having front and rear substrates disposed opposite each other, parallel X and Y electrode lines formed between the front and rear substrates, and address electrode lines formed orthogonal to the X and Y electrode lines to define corresponding discharge cells at interconnections, the X electrode lines are in X groups, and the Y electrode lines are in Y groups, where no two adjacent pairs of adjacent X and Y electrode lines belong to the same pair of X and Y groups. The X and Y electrode lines of the respective X and Y groups are commonly connected to be driven, and at least first and second subfields are driven in an overlapping manner for displaying gray scales during a unit display period. The method includes a scan step, an address step, a display step, a second driving step, and a repetition step.

Abstract: A resetting method includes a line discharge step, an erasure step, and an iteration step. The line discharge step is performed during a part of a first pulse width period. During the first pulse width period since a second subfield corresponding to a first XY-electrode line pair starts after a first subfield corresponding to the first XY-electrode line pair ends, a negative voltage of a first level is applied to all X-electrode lines, and simultaneously, a positive voltage of the first level is applied to all Y-electrode lines. In the line discharge step, a negative voltage of a second level higher than the first level is applied to an X-electrode line of the first XY-electrode line pair, and simultaneously, a positive voltage of a third level higher than the first level is applied to a Y-electrode line of the first XY-electrode line pair, thereby provoking discharges in all discharge cells corresponding to the first XY-electrode line pair.

Abstract: A PDP driving and power recovery method. X and Y electrode voltages of a panel capacitor are maintained to be V2 and V1 volts, respectively. The Y electrode voltage is converted into V2 to store energy in the inductor, the energy stored therein is used to convert the X electrode voltage into V1, and the voltages at the X and the Y electrodes are maintained to be V1 and V2, respectively. The voltage at the X electrode is converted into V2 to store energy in the inductor, and the energy stored therein is used to convert the voltage at the Y electrode into V1.

Abstract: The Y-driver of a 3-electrode plasma display panel driving apparatus includes a switching output circuit and a capacitor. In the switching output circuit, upper and lower transistors are disposed in such a way that the common output line of an upper transistor and a lower transistor is connected to a corresponding Y electrode line. The capacitor is connected between the common power line of all of the upper transistors in the switching output circuit and the common power line of all of the lower transistors in the switching output circuit. A voltage due to charging of the capacitor is applied to the common power line of all of the upper transistors in the switching output circuit.

Abstract: A plasma display panel with a driving apparatus including an inductor of which one end is electrically connected to one end of a panel capacitor. The driving apparatus of the plasma display panel alters a terminal voltage of the panel capacitors into a second voltage by storing energy in the inductor using energy of the panel capacitor charged with a first voltage. The terminal voltage of the panel capacitor is changed into the second voltage, and thereafter, it is maintained at the second voltage by freewheeling current flowing through the inductor. In addition, the terminal voltage of the panel capacitor is changed into the first voltage using the energy stored in the inductor. The terminal voltage of the panel capacitor is maintained at the first voltage by connecting one end of the panel capacitor to a first voltage source after it is changed into the first voltage.

Abstract: A PDP driving method that reduces the reset voltage of the PDP driving waveforms to make it possible to use low-voltage elements and to achieve high contrasts is disclosed. Since conventional PDP waveforms require very high reset voltages, it causes a problem of intense background light emissions, low contrasts, use of high-voltage components, and increased circuit costs. According to the driving waveforms of the present invention, relative voltage differences between the address electrode and the X electrode and between the X electrode and the Y electrode are considered to design waveforms of low reset voltages, thereby providing high contrasts and low-cost circuit.

Abstract: A method of driving a plasma display panel having front and rear substrates opposed to and facing each other, X and Y electrode lines formed between the front and rear substrates to be parallel to each other, address electrode lines formed to be orthogonal to the X and Y electrode lines, to define corresponding pixels at interconnections, and the address electrode lines are cut into two parts at the middle portions thereof to then form first and second panels separately driven such that the minimum driving period includes a display discharge period, a reset period and an address period, a scan pulse is applied to at least one of the respective Y electrode lines during the address period and the corresponding display data signals are simultaneously applied to the respective address electrode lines to form wall charges at pixels to be displayed, pulses for a display discharge are alternately applied to the X and Y electrode lines to cause a display discharge at the pixels where the wall charges have been formed