Abstract: An interlace-type PDP is driven by an improved driving method so as to achieve a greater operating margin, higher resolution, and higher brightness. The interlace-type PDP is driven using odd and even frames in such a manner that the cells are grouped into cell groups such that each cell group includes two or three cells which are adjacent in a direction crossing the electrode pairs, and the cells are driven in units of cell groups. The grouping of cells is performed differently for even and odd frames such that, in one type of frame, locations of two or three cells grouped into each group are shifted by one cell, in the direction crossing the electrode pairs, from the locations of cells grouped together in the other type of frame.

Abstract: The present invention relates to a plasma display apparatus and driving method thereof, wherein rising and/or falling times of data pulses applied to address electrodes in an address period are controlled to reduce noise generation. Thus, address discharge is stabilized, discharge efficiency of plasma display panel is enhanced, and electrical damage to data drive ICs is prevented. The plasma display apparatus includes a plasma display panel including a plurality of address electrodes, a data driving unit including a plurality of data drive ICs that has a plurality of channels, wherein the data drive ICs are electrically connected to the address electrodes through the channels and drive the address electrodes, and a data pulse controller that controls the voltage-rising time and/or the voltage-falling time of the data pulses applied to the plurality of the address electrodes in an address period to be a sufficient duration, e.g. 100 ns or longer, by controlling the data driving unit.

Abstract: There are provided a plasma display device in which dark contrast can be enhanced without deteriorating an image quality and a method of driving a plasma display panel. In a case of driving a plasma display device in which a magnesium oxide layer containing a magnesium oxide crystal to be excited by the irradiation of an electron beam and performing a cathode luminescence having a peak in a wavelength range of 200 to 300 nm by a sub-field method, in order to initialize all display cells, reset discharge is caused in each of the display cells in M sub-fields of N consecutive sub-fields (0<M<N).

Abstract: A plasma display device is provided which can stabilize discharge and improve display quality. In the plasma display device, a rear edge part of a sustain pulse to be applied at the end of a sustain period of each of the subfields is formed of a first section in which a voltage value slowly changes from a peak voltage value of the sustain pulse to a predetermined first voltage value, a second section in which the first voltage value is maintained for a predetermined period, and a third section in which the voltage value slowly changes from the first voltage value to a second voltage value having polarity different from that of the first voltage value.

Abstract: A voice circuit is arranged on a chassis member. The voice circuit comprises a voice output amplifier and a high-frequency bypass unit. An output terminal of the voice output amplifier is connected to one end of a voice coil in a speaker through an interconnection, and is grounded through a high-frequency bypass unit. The voice output amplifier supplies a voice current to the voice coil through an interconnection. The resonance frequency of the high-frequency bypass unit is set to the same frequency as that of a discharge current flowing in the chassis member. A high-frequency induced current generated in the voice circuit due to the discharge current flowing in the chassis member flows to a ground terminal through the high-frequency bypass unit.

Abstract: The present invention relates to a plasma display apparatus and driving method thereof, and more particularly, to a plasma display apparatus implementing gray levels and driving method thereof. The plasma display apparatus according to the present invention comprises a plasma display panel in which a plurality of scan electrodes and a plurality of sustain electrodes are formed on a substrate, drivers for driving the plurality of the scan electrodes and the sustain electrodes, and a sustain pulse controller for controlling the drivers to set a total number of sustain pulses applied to the scan electrodes and the sustain electrodes to be at least one or more of a plurality of sub-fields in which a sub-field having an odd number constitutes one frame. The present invention can implement a finer gray level. Accordingly, half-tone noise when implementing a low gray level can be reduced and the picture quality can be improved.

Abstract: A method for driving a plasma display panel that can generate stable and reliable discharge without making the circuit configuration of the driver complicated. According to this drive method, a plasma display panel where a pixel cell is formed at each intersection of a plurality of column electrodes and a plurality of row electrode pairs is driven such that, in a sustain process of at least one subfield out of subfields in one field display period, an auxiliary discharge is generated along with the sustain discharge in the pixel cell by applying an auxiliary pulse to the column electrode only while a first sustain pulse is being applied.

Abstract: A method for driving a plasma display panel, including a plurality of display electrode pairs and a plurality of address electrodes, and which includes at least an address period and a sustain discharge period. In the address period, performing address processing, between the address electrodes and a display electrode configured as either a set of odd or even numbered display electrodes, sequentially to all of one of the sets of display electrode pairs, and thereafter address processing, between the address electrodes and a display electrode configured as the other set of display electrode pairs, sequentially to all of the other set of display electrode pairs. In the sustain discharge period, supplying at least one first sustain discharge pulse to the one set of display electrode pairs, and supplying at least one second sustain discharge pulse to the other set of display electrode pairs.

Abstract: A plasma display panel includes a first substrate and a second substrate facing each other with discharge cells therebetween, first and second display electrodes formed to extend along a first direction and between the first and second substrates to correspond to the discharge cells, the first and second display electrodes facing each other with a space therebetween to expand in a third direction from the first substrate to the second substrate; and first and second address electrodes formed to extend along a second direction intersecting the first direction, between the first and second substrates, and separated from each other in the third direction.

Abstract: An energy recovery circuit is provided that includes: a panel capacitor formed equivalently in a scan electrode and a sustain electrode, a scan electrode driver installed at a side of the scan electrode of the panel capacitor to supply a sustaining pulse to the side of the scan electrode, and a sustain electrode driver installed at a side of the sustain electrode of the panel capacitor to supply the sustaining pulse to the side of the sustain electrode. The energy recovery circuit may further include a first diode coupled to the scan electrode side of the panel capacitor, a second diode coupled to the sustain electrode side of the panel capacitor, a first inductor commonly coupled to the sustain electrode side and the scan electrode side of the panel capacitor, a path providing part coupled to the first inductor, and a single source capacitor connected to the path providing part.

Abstract: A method for driving an AC type surface-discharge display device which has cells arranged in a matrix. Each of the cells has at least three electrodes including a pair of main electrodes on every line of the matrix and an address electrode on every column of the matrix. The method includes providing an address preparation period applying a charge producing pulse and applying a charge adjusting pulse. The charge adjusting pulse has a waveform monotonously falling from a reference potential and a negative polarity and is applied to the second main electrode used as a scan electrode and generates feeble electric discharges between the first and second main electrodes. The feeble electric discharges are accompanied by a decrease of the wall voltage formed by the charge producing pulse.

Abstract: The present invention relates to a plasma display panel and driving method thereof, which involves controlling the time points when data signals are applied to the data electrodes during an address period, thereby reducing the noise that otherwise affects the waveforms applied to the Y electrodes and the Z electrodes. This, in turn, stabilizes the address discharge and prevents damage to the scan board and/or the sustain board. According to one embodiment of the present invention, the data electrodes are divided into a plurality of electrode groups, where each of the electrode groups receives the data signal at an application time point that is different from the remaining electrode groups.

Abstract: Provided are a plasma display panel (PDP) and a driving method thereof. The PDP includes a first substrate and a second substrate disposed in parallel and spaced apart from one another. Address electrodes are provided on the first substrate with a first dielectric layer over the address electrodes and the first substrate. Barrier ribs are provided on the dielectric forming a plurality of discharge spaces in which phosphor layers are provided. Sustain electrodes are formed on the second substrate facing the first substrate and are arranged crossing the address electrodes. A second dielectric layer is formed over the address electrodes and on the second substrate, and a protective layer including MgO of at least 99.6% purity by weight is formed over the second dielectric layer by a sintering process.

Abstract: A plasma display apparatus may be provided that reduces a noise generating in a waveform applied to a scan electrode or a sustain electrode and that stabilizes address discharge by improving applying time point of a waveform applied in an address period, so that driving stability of a panel may increase. The plasma display apparatus may include a plasma display panel in which a plurality of scan electrodes and a plurality of address electrodes intersecting the scan electrodes are formed, and a data driver dividing the address electrode into a plurality of electrode groups, corresponding to a scan waveform applied to the scan electrode, and the data driver applying an address waveform to one address electrode group, and the address waveform having an applying time point that is different from an applying time point of the scan waveform.

Abstract: A method for driving an AC type plasma display panel includes the steps of performing initialization at least once for each frame so as to clear binary setting of wall charge quantity in a screen by discharge except for micro discharge in which electrodes covered with a plurality of fluorescent materials become cathodes, and performing special initialization at frequency of once for M frames, where M=two or more, so as to erase unnecessary wall charge in the screen by discharge in which electrodes become cathodes and that is stronger than the discharge in the initialization.

Abstract: A driving circuit of a plasma display panel is provided in which a display cell including a first electrode and a second electrode is selected to light up, for applying a first voltage Vs1 to the first electrode and a second voltage Vs2 to the second electrode adjacent to the first electrode to cause a sustain discharge between the first and second electrodes. The driving circuit generates a sustain discharge voltage such that, during the sustain discharge between the first and second electrodes, an applied voltage Vc to a third electrode adjacent to the first electrode opposite to the second electrode falls within a range Vs2?Vc<Vs1, and, in this case, when a display cell including the third electrode is selected to light up, the polarity of a wall charge formed on the third electrode becomes positive.

Abstract: The present invention relates to a plasma display apparatus, and more particularly, to a plasma display apparatus and driving method thereof, in which scan electrodes are scanned according to one of a plurality of scan types and a last sustain pulse of sustain pulses applied to scan electrodes or sustain electrodes is controlled.

Abstract: A novel PDP device capable of reducing the peak current of a sustain discharge without the need to modify circuits has been disclosed.

Abstract: The present invention relates to a plasma display panel, and more particularly, to a plasma display apparatus and a method of driving a plasma display panel including address electrodes (X) and scan electrodes (Y). The plasma display apparatus according to the present invention includes a plasma display panel including a plurality of scan electrodes and a plurality of address electrodes formed to cross the scan electrodes; a driving unit for driving the plurality of address electrodes; and a driving pulse controller for controlling the driving unit so that a voltage falling time of a data pulse supplied to one and more address electrode groups among a plurality of address electrode groups including one or more address electrodes in an address period ranges from no less than 50 ns to no more than 300 ns.

Abstract: A Plasma Display Panel (PDP) driven by a voltage of a driving waveform causing a stable discharge, by which electrodes are disposed to surround sides of a discharge cell to efficiently utilize discharge space, thereby improving light-emitting efficiency, and a voltage of a falling ramp type pulse waveform is supplied to an electrode to which a reset pulse is supplied during an initial reset stage, thereby improving its ability to control a wall voltage which is accumulated around each of the electrodes and is disposed on sides of the discharge cell.

Abstract: In a plasma display apparatus and its drive circuit, a period that capacitance Cxa formed between an address electrode and an X-discharge maintaining electrode and capacitance Cya formed between the address electrode and a Y-discharge maintaining electrode are charged is provided when the address electrode is driven so that the address electrode is set to high-impedance state during a discharge maintaining period to reduce apparent capacitance. Furthermore, the charge period is set in a power withdrawing period and thereafter the address electrode is set to high-impedance state to change final arrival potential for power withdrawal to a discharge maintaining voltage.

Abstract: A driving method of a plasma display panel in which scan electrode lines and sustain electrode lines are parallel to each other and address electrode lines are spaced from and intersect the scan electrode lines and the sustain electrode lines, includes temporally dividing a unit frame into a plurality of subfields, generating a driving signal having a reset period, an address period, and a sustain period for each subfield, detecting an average signal level for the unit frame, alternately applying a first sustain pulse which reaches a first voltage with a rising slope and a second sustain pulse which reaches a ground voltage with a falling slope to the scan electrode lines and the sustain electrode lines, and controlling a timing of alternately applying in accordance with the average signal level for the unit frame.

Abstract: A plasma display panel and a method thereof is described. A frequency of a sustain pulse varies according to a screen load ratio in each subfield or frame. The frequency of the sustain pulse is determined such that power consumption of the plasma display panel, which is a function of the active power and the reactive power of the sustain pulse, is minimized. When the screen load ratio is increased, the frequency of the sustain pulse is increased since the decrease of the active power is increased and the reactive power is maintained.

Abstract: In a plasma display device, the application of at least one address signal to a cell receiving a scan signal is offset from the application of the scan signal. Such offset improves picture quality and/or reduces noise.

Abstract: A plasma display and driving method thereof. A median electrode is formed between X and Y electrodes for receiving sustain pulse voltages, and a reset waveform and a scan pulse voltage are applied to the median electrode. A short gap discharge is performed between the X electrode and the median electrode during the initial interval of a sustain interval, and a long gap discharge is performed between the X and Y electrodes during the normal sustain interval to thus perform a stable discharge. The X and Y electrode drivers are realized through comparable circuits since the waveforms applied to the X and Y electrodes are substantially symmetric.

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 plasma display apparatus and a method of driving the same are disclosed. The plasma display apparatus includes a plasma display panel in which a plurality of scan electrodes, sustain electrodes, and address electrodes are formed on substrates to form a discharge cell and electrode driving parts for driving the scan electrodes, the sustain electrodes, and the address electrodes. The plurality of scan electrodes are divided into a plurality of scan electrode groups and the driving parts are controlled such that a voltage different from a scan bias voltage is applied for a predetermined time in the address period of one or more scan electrode groups among the plurality of scan electrode groups.

Abstract: When driving a plasma display panel, in a first subfield of a first frame, turn-on cells are selected among cells of a first group of electrodes by performing an address operation for the first group, and a sustain discharge is performed for selected cells, and turn-on cells are selected among cells of a second group of electrodes by performing an address operation for the second group, and a sustain discharge is performed for selected cells. In a first subfield of a second frame, turn-on cells are selected among cells of the second group by performing an address operation for the second group, and a sustain discharge is performed for selected cells, and turn-on cells are selected among cells of the first group by performing an address operation for the first group, and a sustain discharge is performed for selected cells.

Abstract: A plasma display device includes a plasma display panel having discharge cells formed between a plurality of first electrodes and a plurality of second electrodes and a driving circuit dividing one frame into a plurality of subfields, each subfield including a reset period, an address period, and a sustain period, and applying a driving voltage to the first electrodes and the second electrodes. During a sustain period of each subfield, a sustain discharge pulse is alternately applied to the first and second electrodes for triggering a sustain discharge. A width of a last sustain discharge pulse applied to the second electrode is set to be greater than a width of other sustain discharge pulses for selected subfields. The subfields may be selected based on whether a total number of the sustain discharge pulses during the sustain period is less than a critical number of sustain discharge pulses.

Abstract: In a plasma display panel, a sustain discharge pulse voltage is applied to the scan or sustain electrodes while the address electrode is biased with a ground voltage, and a negative assistant pulse voltage is applied to an electrode that is not receiving the sustain discharge pulse. At least a part of a period for applying the negative assistant pulse is positioned prior to a period of applying the sustain discharge pulse. Discharge efficiency can be improved by applying the negative assistant voltage to the sustain electrode when the sustain discharge is applied to the scan electrode across a long discharge gap.

Abstract: A sustain or scan electrode driver for a plasma display device including a power recovery circuit, a voltage storage circuit, and a switching circuit. Power recovery is achieved by a coupling a power source at a minus sustain voltage to the sustain or scan electrode driver circuit that includes a capacitor and an inductor for creating resonance with the panel capacitor and recovering the power used in sustain discharge. Power loss of switches used in the driver circuit may be reduced and power recovery efficiency may be increased by using an additional capacitor in the driver circuit that maintains terminals of the switch at a predetermined level.

Abstract: A plasma display panel that includes a first substrate and a second substrate, address electrodes formed on the second substrate, barrier ribs arranged in a space between the first substrate and the second substrate to define a number of discharge cells and non-discharge regions, phosphor layers formed within each of the discharge cells, and display electrodes formed on the first substrate, having a sustain electrode (X electrode) and a scan electrode (Y electrode) in a corresponding pair within each of the discharge cells. The discharge cells are arranged to alternate “A” and “B” sections, where the distances (pitches) between the centers of the adjacent discharge cells are respectively “a” and “b” in which “a” is less than “b”.

Abstract: A display apparatus having a display part to receive a predetermined weight number of sustain pulses to display a frame of an image time-shared into a plurality of subfields, the display apparatus includes a motion detector to determine whether an input image is a still image, and a pulse driver to transmit a number of sustain pulses to the display part, and to decrease the number of sustain pulses transmitted to the display part to cause every frame to be smaller than the weight number when the motion detector determines the input image to be the still image. In this display apparatus and control method thereof, image sticking is prevented without deteriorating gradation representation and without a visual error.

Abstract: Method comprising a succession of image frames which each comprise a sustain phase of the display discharge regions which itself comprises the application of sustain voltage pulses VS between the electrodes of each pair crossing these regions, and, during each sustain pulse, the application of trigger voltage pulses VM to groups of discharge regions, which pulses are applied successively and not simultaneously to the various groups of discharge regions. Thanks to the application in stages of the trigger pulses during each sustain pulse, a reduction in the instantaneous current required to supply the display is obtained.

Abstract: The present invention relates to a plasma display panel, and more particularly, to a plasma display apparatus and driving method thereof, in which power consumption can be reduced and contrast can be improved, so that a high contrast image can be displayed. The plasma display apparatus according to the present invention comprises a scan electrode, a sustain electrode, and a controller for applying a rising waveform and a falling waveform to the scan electrode in a reset period of a first subfield of a frame and applying the falling waveform to the scan electrode when a first time elapses, after a first sustain voltage is applied to the scan electrode during a sustain period. The sustain electrode is applied with a second sustain voltage when a second time is elapsed, after the first sustain voltage is applied.

Abstract: The present invention relates to a plasma display apparatus and driving method thereof. The plasma display apparatus according to the present invention comprises a Plasma Display Panel (PDP), an energy storage part for recovering energy from the PDP, and an energy supply and recovery controller that forms a current path so that the energy storage part can be charged or discharged. In the energy supply and recovery controller, a reference bias voltage is a negative voltage. The driving method of the plasma display apparatus according to the present invention comprises the steps of supplying energy to the PDP, and maintaining a reference bias voltage of a recovery switch part to a negative voltage when an energy storage part recovers energy from the PDP.

Abstract: A method for driving a plasma display panel (PDP) and for safely erasing wall charges in an erase period. The PDP includes a middle (M) electrode formed between an X electrode and a Y electrode. A sustain discharge pulse voltage is periodically applied to the X electrode and the Y electrode in a pulse train fashion. In addition, a reset waveform, a scan pulse voltage, and a sustain discharge voltage are applied to the middle electrode. Moreover, to prevent a strong discharge, an erase waveform is applied to the M electrode in the erase period while the X and Y electrodes are biased with the same voltage level. Alternatively, to prevent a strong discharge, an erase waveform (a gradually rising waveform) is applied to the X electrode in the erase period while the M and Y electrodes are biased with the same voltage level (a ground voltage).

Abstract: A display device where a reverse driving voltage can be applied to a light-emitting element at regular intervals in order to insulate a short-circuit portion, thereby prolonging the life of the light-emitting element. A short-circuit portion is burnt out by providing a period for supplying a forward voltage or current to a light-emitting element, and a period for supplying a reverse voltage or current thereto. AC drive is performed only before mounting an AC driver circuit on an electronic appliance, and it is not performed after the mounting. Accordingly, the number of components in an electronic appliance can be reduced as well as the cost reduction of the components can be achieved.

Abstract: A plasma display device includes a plasma display module having a plasma display panel provided with a plurality of parallel electrodes, a circuit board for applying a voltage to the electrodes, and a chassis conductor configured to hold the plasma display panel and to which a ground of a circuit board is coupled, and further includes a cylindrical conductor portion configured to surround the plasma display module.

Abstract: A plasma display apparatus and a driving method of the same are provided. The plasma display apparatus comprises a plasma display panel comprising a scan electrode, a sustain electrode and an address electrode; a first controller for controlling an application time point of the data pulse for the address electrode during address period to be different from an application time point of a scan pulse for the scan electrode; and a second controller for controlling a last sustain pulse applied to at least one of the scan electrode and the sustain electrode, wherein the second controller controls, when the temperature in the plasma display panel or the temperature around the plasma display panel is substantially a high temperature, an interval between the application time point of the last sustain pulse and an initialization signal of a next subfield to be longer than the interval in room temperature.

Abstract: In a method of driving a panel, in initializing periods of a plurality of sub-fields constituting one field, one of all-cell initializing operation or selective initializing operation is performed. In the all-cell initializing operation, initializing discharge is performed in all the discharge cells for displaying an image. In the selective initializing operation, initializing discharge is selectively performed only in the discharge cells subjected to sustaining discharge in the sub-field immediately before the sub-filed. According to the average picture level (APL) of the signal of an image to be displayed or the light-emitting rate of a predetermined sub-field, the initializing operation in the initializing period of each sub-field is determined to be one of the all-cell initializing operation and the selective initializing operation.

Abstract: Disclosed are a PDP and a driving method thereof. A falling ramp, having the same or greater gradient as that of a falling ramp pulse applied to a Y electrode, is applied to an X electrode in part of a Y ramp falling period during which a falling ramp pulse is applied to the Y electrode. Therefore, high-rate addressing may be allowed and discharge efficiency may be improved since the maximum wall voltage may be formed within a range in which no erroneous discharge may be generated to the X and Y electrodes in a reset period.

Abstract: A method for dividing a frame into a plurality of subfields, and driving them on a plasma display panel having a plurality of first electrodes and second electrodes formed in parallel on a first substrate, and a plurality of third electrodes formed on a second substrate and extending over the first and second electrodes. A first voltage and a second voltage are applied to the first electrode and the second electrode of the discharge cell to be selected from among the discharge cells during an address period of a first subfield with the minimum weight from among the subfields, such that the difference between the first voltage and the second voltage is less than a discharge firing voltage.

Abstract: A method and apparatus and program storage device to drive a display panel having a plurality of address electrode groups includes driving the display panel to transmit digital data at a time difference for each group of address electrodes and varying the respective time difference for each group of address electrodes according to a load factor of each group of address electrodes.

Abstract: A multi-gray-scale image display method and apparatus for displaying a multi-gray-scale image on a PDP by diffusing, as an error, a part of gray scale data representing an input image requiring more than a gray scale resolution of the PDP to a target pixel from different adjacent pixels in a scanning direction according to a diffusion factor corresponding to each pixel. A determination is made whether the target pixel to which the error is diffused from the adjacent pixels is positioned in an upper line of the whole image represented by the data. The diffusion factor is set such that it determines the error diffused from an adjacent pixel differently when the target pixel to which the error is diffused from the adjacent pixel is positioned in the upper line of the whole image.

Abstract: A plasma display apparatus is provided. The plasma display apparatus includes a data drive IC for supplying a data signal corresponding to an image signal to the address electrode through an output terminal formed at one side and the other side of the data driver IC, which oppose to each other, during the supply of the scan signal to an electrode of the plasma display panel.

Abstract: A plasma display apparatus and a driving method thereof are provided.

Abstract: The present invention is related to a plasma display panel, in particular to a plasma display apparatus capable of preventing an error discharge or an error writing of a discharge cell. A plasma display apparatus according to an embodiment of the present invention comprises a plasma display panel including a scan electrode and a sustain electrode; and a controller for applying a negative waveform and a positive waveform to the scan electrode between a reset pulse and a scan pulse having negative polarity, wherein the controller applies a sustain bias voltage to the sustain electrode when the negative waveform is applied to the scan electrode.

Abstract: An apparatus and method of driving a plasma display panel for reducing power consumption is disclosed. In the apparatus, a sub-field mapping unit maps a data inputted from the exterior thereof onto a sub-field pattern stored in advance. An APL calculator calculates an APL corresponding to said data inputted from the exterior and generating an information about the number of sustaining pulses corresponding to the calculated APL. A load detector receives the mapped data from the sub-field mapping unit to generate a control signal in response to whether or not a data for each sub-field is supplied. A waveform generator controls a sustaining pulse applied to a panel in response to said information about the number of sustaining pulses and said control signal.

Abstract: A driving method of a surface discharge plasma display panel includes a resetting step, an addressing step and a sustained discharging step. In the resetting step, a first voltage is applied between the scan electrodes and the address electrodes to accumulate wall charges in the respective pixel by a facing discharge, and the wall-charges accumulated by the facing discharge are removed. In the addressing step, a second voltage is applied between a corresponding scan electrodes and selected address electrodes so that a facing discharge occurs, to form wall-charges in the selected pixels. In the sustained discharging step, a third alternating-current voltage is applied between the scan electrodes and the common electrodes so that a surface discharge occurs in the selected pixels.