Abstract: Technology that enables writing in a PDP to be conducted effectively, even when a time period of the writing is shortened. In a PDP driven by a method in which a write discharge is selectively generated in a plurality of cells by applying a scan pulse sequentially to a plurality of first electrodes and a data pulse selectively to a plurality of third electrodes in a write period, the technology provides for a write auxiliary discharge to be generated at least in a cell selected for writing or in a vicinity of the selected cell when the scan pulse is applied in the write period, the write auxiliary discharge being smaller in magnitude than the write discharge. The write auxiliary discharge results in the generation of priming particles in or in a vicinity of the selected cell, and these priming particles facilitate the generation of a write discharge in the selected cell.

Abstract: A power module is provided which includes: a power-supply voltage terminal for inputting a power-supply voltage; a ground terminal; a first voltage terminal; a second voltage terminal; a first to a third switch; and a first to a third amplification circuit which amplify control signals for controlling the first to the third switch, respectively. The first switch is connected between the power-supply voltage terminal and the first voltage terminal. The second switch is connected between the first voltage terminal and the ground terminal. The third switch is connected between the second voltage terminal and the ground terminal.

Abstract: A PDP and driving method improve the contrast of an AC PDP by maintaining stable discharge and preventing over-discharging in a low gray state by enhancing voltage control of the scan electrodes and sustain electrodes during initialization control. A PDP driving method includes a step of maintaining the first electrode, after applying a rising ramp voltage up to a first voltage level, to a second voltage level that is lower than the first voltage level. A voltage of a third voltage level is applied to the second electrode while maintaining the first electrode at the second voltage level, where the third voltage level is lower than the second voltage level. A falling ramp voltage is applied to the first electrode after maintaining the first electrode at the second voltage level.

Abstract: A plasma display panel and a driving method thereof that are capable of improving the discharge efficiency and the brightness. In the panel, sustaining electrodes are formed at the boundary portions between the discharge cells. Trigger electrodes are formed at the inner sides of the discharge cells. Lattice-shaped barrier ribs are formed in such a manner to surround the discharge cells. The method of driving the panel includes a reset period, an address period and a sustaining period. In the method, a reset pulse is applied to the sustaining electrodes during the reset period. A scanning pulse is applied to the trigger electrodes during the address period. A first sustaining pulse is applied to the trigger electrodes during the sustaining period. A second sustaining pulse is applied to the sustaining electrodes in such a manner to be alternate with the first sustaining pulse.

Abstract: A method and apparatus are provided for driving a plasma display panel. This may include detecting an average picture level of a picture to be transmitted from an input device to a mapping device and to be displayed on the plasma display panel. This may also include mapping a number and an arrangement of sub-fields with respect to each pixel data based on the detected average picture level and determining a total discharge frequency and a discharge frequency by sub-fields based on the detected average picture level.

Abstract: A method and apparatus for driving a plasma display panel in which pairs of sustain electrodes lines respectively including X-electrode lines and Y-electrode lines that are alternately arranged parallel with each other are disposed to be orthogonal to address electrode lines, and discharge cells are defined by intersections between the sustain electrodes and the address electrode lines. In the method, a unit frame as a display period is divided into a plurality of subfields to realize time-division grayscale display, and the individual subfields include a reset period, an address period, and a sustain period. The method includes maintaining the Y-electrode lines at a reference level during the reset period and the sustain period; and addressing the Y-electrode lines by biasing the Y-electrode lines to a first level and simultaneously, sequentially applying a scan signal of the reference level to the Y-electrode lines during the address period.

Abstract: A color adjustment device and method for the plasma display panel. The color adjustment device comprises a look up table and an error diffusion circuit. Wherein, the look up table is used to store a plurality of gray scale data, select one corresponding data from the plurality of gray scale data according to a received gray scale input value as an output. The error diffusion circuit receives the gray scale data output from the look up table, and achieves the objective of improving the color adjustment precision by using an error diffusion compensation method.

Abstract: A method of sub-field drive can display with a mode of placing emphasis on responsiveness and display with a mode of placing emphasis on gray-scale reproductiveness. A field is divided into plural sub-fields on a time axis, and each of such sub-fields is a control unit of driving a pixel. A code storing ROM stores a code that controls sub-fields to collecting on-voltage intensively in a former part of a field based on display data. Another code storing ROM stores a code that controls sub-fields to increase levels of gray scale based on display data. A data encoder determines whether each pixel of display data is an edge part of a moving image or not, selects a code that enables superior display in responsiveness at the edge part of a moving and selects a code that enables superior display in gray scale reproductiveness in other parts from the ROMs.

Abstract: A PDP driving apparatus and a gray level expressing method thereof that improves the expression of the gray level and reduces pseudo-contour. The average signal level of one frame data of an input image signal is calculated to determine a sustain pulse number, and an inverse gamma correction gray level corresponding to the sustain pulse numbers is expressed with reference to inverse gamma correction tables selected according thereto. The sustain pulse numbers determined according to the signal level are divided into a plurality of groups, and then are converted to the subfields depending on the sustain pulse numbers corresponding to the respective groups. In that situation, the sustain pulse numbers at the subfields corresponding to the respective groups are different from each other.

Abstract: A display panel driving circuit for driving a display panel, in which the electric power consumption at the time of the switching can be reduced. The display panel driving apparatus allows the use of a switching device of a low withstanding voltage. A transition voltage generating circuit for shifting a voltage of a DC power source of the driving apparatus is provided. A resonance relay circuit is provided for generating a pulse having a leading edge which rises gradually and a trailing edge which decreases gradually based on the transition voltage and supplying it as a drive pulse to the display panel. A plurality of resonance circuits for driving and exciting capacitive devices of the display panel are provided in a range of different driving potentials. The drive pulse having the leading edge which rises gradually and the trailing edge which decreases gradually is generated by switching each of the resonance circuits by the switching device to make them operative sequentially.

Abstract: It is the object of the invention to provide a PDP apparatus and a driving method that can apply pulses at high speeds and can display high-definition, high-quality images by allowing discharge cells to emit light with high luminance and high efficiency. To achieve the object, the pulse has (i) a first waveform portion where a first voltage, an absolute value of which is no smaller than a discharge start voltage, is applied and (ii) a second waveform portion where a second voltage, an absolute value of which is greater than the absolute value of the first voltage, is applied, the second waveform portion following the first waveform portion, and the second waveform portion starts before a discharge delay time elapses from a start of the first waveform portion.

Abstract: A plasma display apparatus has a waveform of a driving voltage supplied from a driver. The waveform has a sustaining period when a sustaining pulse is alternately applied to scanning electrodes and sustain electrodes for keeping discharge. Besides, the waveform has an erasing period when a ramp voltage pulse whose polarity differs from that of a sustaining pulse is applied to an electrode, which differs from an electrode where a last pulse of the sustaining pulse is applied. As a result, false discharge is prevented, and a stable image can be displayed.

Abstract: A method may be provided for setting an average picture level. This may include setting an average picture level with a fixed number of steps based on a pre-determined gray level range, deriving a low brightness intensifying coefficient, deriving a high brightness intensifying coefficient, deriving a first constant representing an average increase rate of brightness, and calculating a number of sustain pulses corresponding to a gray level of a video signal currently inputted based on the derived low brightness intensifying coefficient, the derived high brightness intensifying coefficient and the derived first constant.

Abstract: When an average peak level is high, and there is a difference in weight between a subfield SF1 on the lowest level and a subfield SF2 on the second lowest level while their sustain cycle numbers are equal, all scan electrodes are scanned for the subfield SF1 on the lowest level. Simultaneously, data pulses according to video signals are impressed on data electrodes only when an odd number scan electrode is scanned in an odd number field (an nth frame), and the data pulses according to the video signals are impressed on the data electrodes only when an even scan number electrode is scanned in an even number field (an (n+1)th frame).

Abstract: A surface-discharge type PDP includes plural electrode pairs formed of first and second sustain electrodes arranged on a first substrate. Each pair extends along a line direction, and the first and second sustain electrodes are in parallel and adjacent to each other. Plural address electrodes arranged on a second substrate opposing the first substrate via a discharge space, each extending along a row direction, a matrix corresponding to a screen to be displayed is formed with the main electrodes and address electrodes, the address electrodes are orthogonal to the main electrodes, each of the address electrode is divided into, for example two partial address electrodes separated from each other by a border line located between adjacent main electrode pairs, whereby the screen is divided into two partial screens, wherein a first clearance between the partial address electrodes is substantially larger than a second clearance between main electrode pair adjacent across the border line.

Abstract: A method of driving a plasma display panel including a plurality of scanning electrodes covered with a dielectric layer, and a plurality of sustaining electrodes covered with a dielectric layer, including the steps of (a) applying scanning pulses in time-division to the scanning electrodes in an addressing period in which a cell or cells emitting light is(are) selected, and applying sustaining pulses to the sustaining electrodes in a sustaining period for generating preliminary discharge and preliminary erasing discharge before the cell or cells emitting light is(are) selected, and (b) applying a serrate pulse to the scanning or sustaining electrodes when the preliminary erasing discharge is generated, the serrate pulse having an inclination smaller than 10 V/?s, wherein a period of time until the generation of the preliminary erasing discharge from the termination of the preliminary discharge is set shorter than 3T where T indicates a decay time constant of priming particles.

Abstract: A plasma display device having display electrode pairs and providing improved luminance and light emission efficiency of display discharges with reduced variations of the luminance and light emission efficiency thereof resulting from variations of a display load. A discharge is generated by applying an offset drive voltage that is higher than a sustain voltage applied to the display electrode pair, and applying the sustain voltage for a constant period after dropping the applied voltage from an offset drive voltage to the sustain voltage after generating the display discharge. The drive output state is set to a low impedance state at least during a time period from the start of applying the offset drive voltage until the applied voltage drops to the sustain voltage.

Abstract: A plasma display panel (PDP) having a priming electrode is disclosed. The PDP has a first substrate and a second substrate, wherein the second substrate is opposite to the first substrate. The space between the first substrate and the second substrate is defined as a discharge space and is filled with a discharge gas. A sustaining electrode, a scanning electrode and a priming electrode are all positioned on the first substrate along a first direction. An address electrode is positioned on the second substrate perpendicularly with the first direction. The priming electrode outputs a first priming pulse so as to excite the discharge gas and to produce a plurality of discharge ions.

Abstract: A method for driving a plasma display device is provided which is capable of causing writing discharge to normally occur. A sub-field includes an initializing period, a scanning period during which video data to display a video is written in a discharge cell by causing writing discharge to occur between a scanning electrode and a data electrode, and a sustaining period during which sustaining discharge to cause the discharge cell in which a writing discharge has occurred to emit light in a manner to correspond to video data is made to occur between the scanning electrode and a sustaining electrode. The initializing period includes a wall charge adjusting period during which wall charge adjusting discharge to adjust charges accumulated between the scanning electrode and the sustaining electrode is made to occur, a sustaining erasing period, a priming period, and a priming erasing period.

Abstract: Disclosed is a method of driving a plasma display panel enabling to improve an overall contrast characteristic of the plasma display panel by reducing a voltage difference between scan and sustain electrodes Y and Z to decrease an emission amount of light generated by a discharge between the scan and sustain electrodes Y and Z. The present invention includes a first step of applying a reset pulse to the scan electrode to form predetermined wall charges on the electrodes for a set-up period and a second step of applying a pulse of a predetermined level to the sustain electrode to reduce a voltage difference between the scan and sustain electrodes while the reset pulse is applied.

Abstract: In a PDP driver, first and second signal lines for a voltage of Vs and third and fourth signal lines for a voltage of 0V are formed. While maintaining Y and X electrodes of the panel capacitor at Vs and 0V, a first current path is formed from the first signal line to the fourth signal line through an inductor to supply a first-directional current to the inductor. A second current path is formed from the Y electrode to the X electrode through the inductor to change the Y and X electrode voltages using the resonance. When the electrode voltages become 0V and Vs, a third current path is formed from the third signal line to the second signal line through the inductor to reduce the first-directional current.

Abstract: A plasma display panel (PDP), and a method of driving plasma display panel, achieve improved contrast by minimizing quantity of luminescence in a non-luminescent display period, that is, a reset period. A method of driving a PDP having a plurality of discharge cells with a plurality of scanning electrodes, a plurality of sustain electrodes, and a plurality of address electrodes involves forming a frame having a plurality of sub-fields; causing a reset discharge in only first sub-fields of the respective plurality of discharge cells; deciding ON/OFF state of discharge cells in current sub-field in accordance with ON/OFF state of discharge cells in previous sub-field; and converting the discharge cell into any one of ON/OFF wall electric charges in accordance with the ON/OFF state of the decided discharge cell.

Abstract: A gas discharge panel includes a first substrate and a second substrate. A plurality of display electrode pairs which are each made up of a sustain electrode and a scan electrode are formed on the first substrate, and the first substrate and the second substrate are set facing each other with a plurality of barrier ribs in between so as to form a plurality of cells. In this gas discharge panel, at least one of the sustain electrode and the scan electrode includes: a plurality of line parts; and a discharge developing part which makes a gap between adjacent line parts smaller in areas corresponding to channels between adjacent barrier ribs than in areas corresponding to the barrier ribs.

Abstract: Fields define a picture signal, and each field is divided into a plurality of sub fields. A plasma display panel includes discharge cells formed at crossing portions of row and column electrodes. A sub field group includes a head sub field and at least one subsequent sub field. Each sub field of the sub field group includes a selected writing address stage for selectively discharging a discharge cell in question so as to set the discharge cell into a lighting mode in accordance with the picture signal. At least one sub field subsequent to the sub field group includes a light emission maintaining stage for repeatedly maintaining discharge of the discharge cell in only the lighting mode for a number of times in accordance with weighting of the plurality of sub fields.

Abstract: A method for driving an AC plasma display panel which makes it possible to reduce flicker in display and have stable and high luminance. In a first step, a wall charge of same amount is produced both in an X electrode 22 and a Y electrode 23 by writing discharge during a scanning period. At this time, the amount of the wall charge is adjusted depending on gray scale to be displayed. In a second step, during a sustaining period, a timing of a start of the sustaining discharge is changed by changing a sustaining start control voltage as a voltage of a data electrode. Gradation sequence are displayed through the above steps.

Abstract: It is disclosed that there is a method and an apparatus for driving a plasma display panel that is adaptive for improving brightness as well as realizing a high resolution. A method and an apparatus for driving a plasma display panel according to the present invention displays discharge cells of the (3i?2)th and (3i?1)th rows in use of the first video signal field; and discharge cells of the (3i?1)th and (3i)th rows in use of the second video signal field.

Abstract: A method of driving a plasma display panel that is adaptive for improving brightness and efficiency. In the method, a sustaining pulse for sustaining a discharge of a cell selected in a sustaining interval is alternately applied to each of a sustaining electrode pair. A pulse signal synchronized with the sustaining pulse is applied to a data electrode to cause a discharge for inducing a long-path discharge between the sustaining electrode pair between any one of the sustaining electrode pair and the data electrode.

Abstract: A method of driving a plasma display panel that is adaptive for improving a picture quality. In the method, a scanning pulse is applied to first electrodes so as to select a discharge cell in an address period. A data pulse synchronized with the scanning pulse is applied to address electrodes arranged to cross the first electrodes. A reset pulse is applied to the first electrodes in the reset period, and a pulse width of the reset pulse is set differently depending upon an application sequence of the scanning pulse.

Abstract: The plasma display panel (PDP) unit of the present invention comprises a PDP drive circuit for supplying drive power to a display panel and a control portion for controlling the drive power. The control portion includes a power correction value generating circuit for generating a power correction value and the PDP drive circuit contains a voltage adjusting circuit for outputting the drive power based on the power correction value.

Abstract: A method for driving an address-display separated-type AC (Alternating Current) PDP (Plasma Display Panel) is provided which is capable of having sequentially and continuously wall charges be formed sufficiently on a scanning electrode and sustaining electrode even when a width of a scanning pulse is shortened. Driving operations of a scanning driver and sustaining driver for the scanning electrode and the sustaining electrode during a pre-discharge period are the same as those employed in the conventional method. Driving operations for the scanning electrode during a scanning period are also the same as those in the conventional method except following. At ending time of a period during which a scanning pulse is applied to the scanning electrode, a potential difference obtained by superimposing a writing wall charge forming pulse on a sustaining pulse is applied for 3 ?sec to 5 ?sec.

Abstract: A method of driving a plasma display panel to improve display brightness and luminescent efficiency. In the sustain periods, the same driving signal is sent to the sustain electrode X as well as the address electrode Ai at the same time to achieve the desired volume discharge effect. In addition, the structure of PDPs is modified to raise firing voltages between these electrodes, preventing erasure of the data written in the address periods.

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 that is adaptive for improving discharge efficiency. In the panel, a plurality of the first and second electrodes are provided at the rear side of an upper substrate. A dielectric layer is provided at the rear side of the upper substrate in such a manner to cover the upper substrate and the first and second electrodes. A plurality of the first and second auxiliary electrodes are provided in parallel to the first and second electrodes within the dielectric layer.

Abstract: In a driving method for driving a plasma display panel, achieving improvements on luminous efficiency, brightness and contrast, as well as, low voltage and low power consumption, and also high-speed addressing and sustain therewith, wherein onto a second display electrode is applied pulse voltage in reverse polarity with sustain pulse voltage, nearly in synchronism with the sustain pulse voltage to be applied onto a first display electrode, thereby shifting initial discharge (or, pre-charge) caused between the first display electrode and a metal electrode of a partition portion after the generation thereof into display discharge, thereby forming wall charge and wall voltage on the second display electrode.

Abstract: According to the present invention, in a plasma display discharge tube in which a plurality of stripe-like anode electrodes (11) and a plurality of stripe-like cathode electrodes (9) are arranged at a predetermined interval to be crossed each other, to thereby constitute an X-Y matrix electrode with a space at each of the crossing portions thereof as a pixel and a plurality of pixels are selectively excited according to an image to display an image, there is provided a plasma display discharge tube in which there are provided an AC type memory electrode (1) arranged opposite to the X-Y matrix electrode (9) and (11) common to all the pixels, and an AC type auxiliary electrode (5) in contact with the AC type memory electrode (1) through an insulating layer and supplying an electric power through a coupling capacitor formed between the same and the AC type memory electrode (1), wherein a memory discharge display is performed between the X-Y matrix electrode (9) and (11) and the AC type memory electrode (1).

Abstract: In the matrix display drive circuit with an energy recovery inductor (L1), a switch circuit (S3, D3, S6, d9) is connected in parallel with the inductor (L1) to keep the inductor current (TL1) in a loop which is as small as possible, and to keep the voltage (VL1) across the inductor (L1) as low as possible. Consequently, the energy stored in the inductor is lower, and the EM1 caused by the parasitic resonance of the inductor (L1) with parasitic capacitances Cj will be significantly lower.

Abstract: A driving method for a display apparatus produces light emission by applying a sustain discharge pulse repeatedly. A pulse width of the sustain discharge pulse is varied within one subfield and is controlled in accordance with the amount of voltage drop of a sustain discharge voltage. A display apparatus has a display panel section, a data converter, a power supply section, and a sustain discharge pulse control circuit. The data converter receives an image signal and supplies image data suitable for the display apparatus to the display panel section, and the power supply section supplies power to the display panel section. Further, the sustain discharge pulse control circuit varies a pulse width of sustain discharge pulse within one subfield and controls the pulse width of the sustain discharge pulse in accordance with the amount of voltage drop of a sustain discharge voltage.

Abstract: A highly-efficient device and method for driving a plasma display panel, by which the voltage stresses of circuit elements, which constitute the driving device, are significantly reduced, and power consumption and heat emission are accordingly reduced. Charging and discharging modes, which constitute a sustain mode, are divided into two first and second charging modes, which are pre-charging and post-charging modes, and two first and second discharging modes, which are pre-discharging and post-discharging modes, respectively. The plasma display driving device is designed so that the two charging modes form different resonance paths passing through different inductors, and the two discharging modes also form different resonance paths passing through different inductors. Consequently, voltage stresses applied to the elements of the driving device are halved.

Abstract: A plasma display apparatus includes a plurality of electrodes for electric discharge, and a drive circuit which drives the plurality of electrodes. The drive circuit includes first and second outputting circuits provided on a board, a connector provided on the board and coupled to the plurality of electrodes, and a conductive plate which is provided on the board, and provides electrical couplings between the first and second outputting circuits and the connector. The conductive plate includes a first area connected to the first outputting circuit and a second area connected to the second outputting circuit, the first area and the second area being substantially line-symmetric.

Abstract: An AC-type plasma display panel and a method for driving the AC-type plasma display panel are provided which are capable of reducing discharge leak (crosstalk) between cells being adjacent to each other and of increasing operating range. The AC-type plasma display panel has two insulating substrates both facing each other. On one insulating substrate is formed a plurality of scanning electrodes and a plurality of sustaining electrodes. On another insulating substrate is formed a plurality of data electrodes. Each of the scanning electrodes is made up of each of bus electrodes and each of main discharge electrodes.

Abstract: An apparatus for driving a plasma display panel (PDP). The PDP includes a sustain discharge unit, a first charge and discharge unit, and a second charge and discharge unit. The sustain discharge unit maintains a voltage of a terminal of the panel capacitor at the sustain discharge voltage or the ground voltage. The first charge and discharge unit charges one end of the panel capacitor to the sustain discharge voltage or discharges one end of the panel capacitor to the ground voltage. The second charge and discharge unit charges the other end of the panel capacitor to the sustain discharge voltage or discharges the other end of the panel capacitor to the ground voltage.

Abstract: There is provided a method of controlling electrodes of a pixel in a plasma display panel. The method includes applying a first voltage to a first electrode of the pixel during an addressing discharge involving the first electrode, and applying a second voltage to a second electrode of the pixel. The first voltage and the second voltage have a relationship that discourages the addressing discharge from extending to the second electrode.

Abstract: A circuit for providing a pulse to drive a capacitive load comprises (a) a first inductive component that influences both a transition time of a rising edge of the pulse and a transition time of a falling edge of the pulse, and (b) a second inductive component that influences one of the transition time of the rising edge and the transition time of the falling edge so that the rising edge and the falling edge are asymmetrical.

Abstract: A method for driving a display panel which enables changing of the refresh rate, without degrading display quality, of a display panel employing the matrix display scheme for carrying out gray-scale drive by using the sub-field method. By the method, the number of sub-fields to be executed within a unit display period is changed in response to the vertical synchronization frequency of an input video signal.

Abstract: A driving method of a plasma display panel and a driving circuit thereof are disclosed. In the method, image data is inputted by applying a scanning pulse to the scanning electrode and selectively applying a data pulse to the data electrode during an address period. Then, a first pulse and a second pulse of different phase are respectively applied to the first sustaining electrode and the second sustaining electrode during a sustain period. A third pulse is applied to the scanning electrode to sustain the image data. A first discharge current and a second discharge current are occurred, an time interval is formed between the discharge currents to reduce an instant power consumption of the PDP. The driving method is also used to reduce the electromagnetic interference and increases the operation margin.

Abstract: A plasma display panel driving method and a plasma display apparatus which can reduce power consumption. A selective discharge is generated at least once for selectively setting each of discharge cells of a plasma display panel either to a lit discharge cell state or to an unlit discharge cell state in accordance with a video signal. In this case, the number of times the selective discharge is generated is changed in accordance with the power consumption associated with the selective discharge.

Abstract: A method of driving a PDP apparatus to sufficiently suppress the background light emission and improve the dark room contrast, in which first electrodes and second electrodes are arranged adjacently by turns, a first display line is formed between one side of the second electrode and the first electrode adjacent thereto, a second display line is formed between the other side of the second electrode and the first electrode adjacent thereto, and the interlaced display that displays the first display line and the second display line alternately in different fields is performed, has been disclosed, wherein the reset voltage that directly relates to the intensity of the background light emission is varied according to the number of times of sustain discharges, the display conditions, and so on, in each subfield and the reset discharge is caused to occur with the minimum voltage in each subfield.

Abstract: In a PDP driver, a sustain part includes first and second switches serially coupled between first and second voltages, and third and fourth switches serially coupled between the first and second voltages. A coupling node of the first and second switches is coupled to one end of the panel capacitor, and a coupling node of the third and fourth switches is coupled to the other end thereof. A charging/discharging part includes an inductor, one end of which is coupled to the coupling node of the first and second switches and the coupling node of the third and fourth switches through first and second paths, and an external capacitor coupled between the other end of the inductor and the second voltage through third and fourth paths.

Abstract: In a drive method of a mixed scan-sustain type of plasma display panel, set-up discharge is performed in the next scan line to be scanned when any particular scan line is in a write period. At this time, a first set-up discharge pulse, which is a gradually rising pulse of the opposite polarity of the scan pulse, is applied to scan electrodes of the scan line that is in the set-up discharge period, and a second set-up discharge pulse, which is a rectangular or gradually rising pulse of the same polarity as the scan pulse and of lower voltage than the scan pulse, is applied to the sustain electrodes. In addition, a set-up discharge erase pulse for eliminating set-up discharge and a sustain erase pulse for eliminating sustain discharge are impressed with the same gradually falling pulse shape.

Abstract: Scanning electrodes are shared between adjacent display lines. Sustaining electrodes are disposed between the scanning electrodes by two. The sustaining electrodes form display lines by gaps with adjacent scanning electrodes. The sustaining electrodes are separated into a first sustaining electrode group in which a plurality of sustaining electrodes disposed at the one side of the scanning electrode are commonly connected and a second sustaining electrode group in which a plurality of sustaining electrodes disposed at the other side of the scanning electrode are commonly connected to be independently driven.