Abstract: An electro-optical device includes a panel formed so that an electro-optical material is held between a first substrate and a second substrate, a lighting unit that irradiates light to a surface of the first substrate or the second substrate of the panel, a light detecting portion that detects an illuminance of ambient light, and a light control portion that controls the lighting unit on the basis of result detected by the light detecting portion. The light detecting portion is provided on the first substrate or on the second substrate and includes a first optical sensor, a second optical sensor, a first electrode, a second electrode, and an electric potential applying portion. The first optical sensor is irradiated with ambient light. The second optical sensor is shielded against irradiation of ambient light. The electrodes are configured to overlap the respective optical sensors through an insulating layer.

Abstract: A method and an apparatus for processing video data for display on a plasma display panel include dividing gray level values reverse gamma corrected with respect to input gray level values into an integer portion, an upper decimal fraction portion and a lower decimal fraction portion. The lower decimal fraction is then dithered, a first update value generated according to the lower decimal fraction dithering result is added to the upper decimal fraction portion, and the upper decimal fraction having the first update value added thereto is dithered. Finally, a second update value generated according to the upper decimal fraction dithering result is added to the integer portion.

Abstract: A panel drive method and a plasma display device which increase the luminance of a panel and enable further reduction of power consumption are provided with the following configuration. One field is composed of a plurality of subfields including a address period during which a address discharge is selectively induced in discharge cells and a sustain period during which sustain pulses the number of which corresponds to the luminance weight are applied to induce sustain discharges in the discharge cells where the address discharges are induced. The plasma display device has a sustain pulse generating circuit composed of a power recovering circuit for inducing the rise and fall of each sustain pulse by resonating the inter-electrode capacity of a display electrode pair with an inductor and a clamp section for clamping the voltage of the sustain pulses to a predetermined voltage. The repetition period of the sustain pulse can be set according to the average luminance level of the image signal.

Abstract: A system and method for determining composite grays using device values. Device values are received from image data on which color separation was performed. Gray component replacement are determined on black point device values by using target lightness values, target chromaticity values, and target black device values. A printing device and a computer readable media having computer instructions for implementing the method of determining composite grays are also provided.

Abstract: Device and method for operating a plasma display panel, wherein scan electrode lines are equally divided into two, and independently operated, and a scanning sequence of the scan electrode lines is alternated at every sub-field.

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: 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: 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 method and system is provided for creating a display and generating images. Creating the display includes receiving a transmissive display component over an emissive display component and positioning each emissive display pixel with one or more transmissive display pixels creating a display surface capable of displaying color images. Displaying images on the display surface includes decomposing image data associated with the image into separate chrominance signal levels and luminance signal levels, displaying the representation of the chrominance signal levels of the image by driving emissive display pixels in correspondence to the chrominance characteristic of the image, generating the representation of the luminance signal levels for display through the emissive display pixels of the emissive display component and filtering the displayed representation of the luminance signal level using transmissive display pixels in accordance with the luminance characteristics of the image.

Abstract: A display panel driving method that can reduce power consumption in a sustain step is provided. Output terminals of a column electrode drive circuit connected to column electrodes of a display panel sustain a state of high impedance during the period of the sustain step. An X sustain signal is set as a bipolar pulse signal, in each half-cycle of which the commencement time of the rise of the negative pulse is set longer than the completion time of the rise of the positive pulse, and the commencement time of the fall of the positive pulse is set longer the completion time of fall of the negative pulse. Furthermore, a Y sustain signal is displaced by a half cycle from the phase of the X sustain signal. It should be noted that the polarity of these pulses may be reversed.

Abstract: A control circuit for balancing current in a thin display device includes a light source, a power supply, and a control part. The light source includes a plurality of parallel light-emitting diode (LED) rows. The LED row includes at least one LED and a switch unit. The switch unit is in series connection with the LED. The switch unit has two working conditions, one is on and the other is off, to determine whether the current passes through the LED row. The power supply provides a working power for the LEDs. The control part detects the currents of the LED rows, controls the on-state timing ratio of the switch unit and controls the output power of the power supply.

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: 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: The present invention relates to an apparatus and method for driving a PDP (plasma display panel). An image signal processor of the apparatus performs gamma correction and error diffusion processes of input image signals. A quantization error compensator compensates quantization errors with respect to an automatic power control (APC) level of image data output from the image signal processor. An error diffuser sets part of the image data output from the quantization error compensator as display errors and diffuses the display errors to peripheral pixels. A memory control and address driver generates sub-field and address data corresponding to image data that have undergone error diffusion by the error diffuser, and applies the data to the PDP. An APC and sustain/scan pulse generator generates a sub-field arrangement structure according to the APC level, generates control signals based on the generated sub-field arrangement, and applies the control signals to the PDP.

Abstract: A plasma display panel exhibiting a reduced discharge firing voltage and/or improved luminescence efficiency is disclosed. In one embodiment, the plasma display panel includes first and second substrates facing each other with a predetermined gap such that a plurality of discharge cells are formed in a space therebetween, wherein each discharge cell comprises an address electrode elongated in a first direction, a pair of first electrodes elongated in a second direction crossing the first direction, and a pair of second electrodes elongated in a second direction, and wherein each discharge cell includes a pair of discharge spaces, the pair of first electrodes are disposed at opposite sides of the each discharge cell, and the pair of second electrodes are disposed substantially at a center of the discharge cell, between the pair of first electrodes, and parallel with each other.

Abstract: Systems and techniques for processing sequences of video images involve receiving, on a computer, data corresponding to a sequence of video images detected by an image sensor. The received data is processed using a graphics processor to adjust one or more visual characteristics of the video images corresponding to the received data. The received data can include video data defining pixel values and ancillary data relating to settings on the image sensor. The video data can be processed in accordance with ancillary data to adjust the visual characteristics, which can include filtering the images, blending images, and/or other processing operations.

Abstract: A brightness correction method of a plasma display panel and a device there-for are provided. First, a first gray scale data of a displaying pixel is received, and then the first gray scale data is added to a displaying brightness error weighted value of a pixel vertically adjacent to the displaying pixel to obtain a second gray scale data. Next, a plurality of candidate brightness error values is obtained according to the second gray scale data. Thereafter, the second gray scale data is added to the displaying brightness error weighted value of the pixel horizontally adjacent the displaying pixel to obtain a third gray scale data. Then, one of the candidate brightness error values is selected according to third gray scale data to obtain a displaying brightness error value of the displaying pixel.

Abstract: A flat display employs at least one high voltage different from logic voltages. The display has a voltage detection unit and a drive control signal control unit. The voltage detection unit is used to detect the high voltage. The drive control signal control unit is used to control drive control signals of the flat display in accordance with the detected high voltage. This arrangement eliminates charging currents that are applied to a display panel but have nothing to do on the actual displaying of data, or reactive currents due to unnecessary switching operations, thereby reducing power consumption.

Abstract: A plasma display device and an image processing method thereof for reducing false contour and avoiding a low discharge at grayscales include detecting a moving image block and a still image block from input video signals. The output of grayscales of the detected still image block is determined such that the number of consecutive non-lighting subfields is less than or equal to L among fields driven previously to a last turn-on subfield of the corresponding output grayscale. The output grayscale of the detected moving image block is determined such that a number of consecutive non-lighting subfields is less than or equal to M and the total of non-lighting subfields is less than or equal to N among fields driven previously to a last turn-on subfield of a corresponding output grayscale.

Abstract: Disclosed is an user-friendly display device for operating with a power consumption desired by the user. The display device comprises: a characteristic acquisition unit for obtaining a characteristic indicative of a correspondence relationship between an average peak level and the number of display pulses corresponding to a target power consumption; an average peak level detector for detecting an average peak level of an input image signal; a driving control unit for determining the number of display pulses corresponding to the detected average peak level with reference to the characteristic; a driver for generating a display pulse a number of times equal to the number determined by the driving control unit; and a display panel for receiving the display pulses supplied from the driver to emit light at a luminance depending on the number of display pulses.

Abstract: A method for driving a plasma display panel (PDP) that can increase dark contrast without causing erroneous discharges is provided. A unit display period is divided into a plurality of subfields. A reset process and a sustain process are performed in one of the subfields. In the reset process, a reset pulse is applied to row electrodes of the PDP to initialize each discharge cell to an emission mode (or non-emission mode). In the sustain process, a sustain discharge is repeatedly generated a number of times, corresponding to the number of times a sustain pulse is to be applied, in those discharge cells that are in the emission mode. In this case, a peak potential of the reset pulse is changed based on the number of those discharge cells that are maintained in the non-emission mode during the unit display period and the number of times the sustain pulse is to be applied in the sustain process in this subfield.

Abstract: There is disclosed the simultaneous addressing and sustaining of a surface discharge AC plasma display panel wherein at least one section of the panel is addressed while at least one other section of the panel is being simultaneously sustained. In one embodiment a reset voltage is applied to at least one section while at least one other section is being simultaneously addressed. In another embodiment, the reset voltage period in the one section is long enough to allow addressing in the other section followed by sustaining in the other said section.

Abstract: A small-sized, low-loss load drive circuit, an integrated circuit for that drive circuit, and an inexpensive plasma display using that integrated circuit. In the load drive circuit that responds to switching commands to supply a high or low voltage to a load by switching, the source-drain voltage of an output-stage n-type MOS transistor of a flip-flop is supplied between the gate and cathode of a main IGBT. In order to hold this voltage, the power source to the flip-flop is supplied from a main power source or a charge pump power circuit connected at the fixed potential point of the main power source. In addition, a discharge prevention circuit and discharge prevention elements and are provided in order that the potential of the power source can be maintained higher than the positive potential of main power source.

Abstract: A display panel driving apparatus which reduces a peak value of a voltage/current upon charging or discharging of discharging cells on a display panel. The apparatus has a pulse generating part for supplying a driving pulse to a capacitive light-emitting device arranged in each of crossing positions of a plurality of row electrode pairs and column electrodes on the display panel of the display panel driving apparatus. The pulse generating circuit includes a charge/discharge resonance circuit for executing charging and discharging to the capacitive light-emitting devices through an inductor, and a harmonic multiplexing circuit for multiplexing a harmonic current having a harmonic frequency of a resonance frequency of the charge/discharge resonance circuit to a charge/discharge current by the charge/discharge resonance circuit.

Abstract: When the temperature of a plasma display panel falls outside a predetermined temperature range or when the time during which the plasma display panel is used exceeds a predetermined time, the largest potential difference between one row electrode and the other row electrode is reduced in a second half of a reset step.

Abstract: Disclosed is a plasma display panel, and an apparatus and method for driving the same. In the method of the present invention, an image signal is received and gamma-corrected according to a gamma correction curve. The gamma-corrected image signal is generated as subfield data according to a compressed subfield generation table. The average signal level of the image signal is calculated and correction according to an average signal level correction inverse curve is performed regarding the generation of the subfields for each gray level, and a sustain electrode driving signal and a scan electrode driving signal corresponding to the average signal level are output.

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: 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 driving method of a plasma display device, a final voltage of a falling ramp voltage is set to a discharge firing voltage of all the discharge cells after applying a gradually rising ramp voltage during a reset period. A difference in voltage applied to an address electrode and to a scan electrode is set to be greater than the maximum discharge firing voltage in turn-on discharge cells in an address period. A bias voltage applied in a rising reset period, an address period, and a sustain period of subfields that express low grayscales is increased, and the address electrode is biased with a positive voltage in the sustain period. With this configuration, the problem of worsening the margins by loss of wall charges is solved since addressing is not influenced by the wall charges and performance of expressing low grayscales is increased.

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 PDP driving method. No rising ramp voltage is applied to a scan electrode during a reset period. The final voltage of a falling ramp voltage is reduced to a voltage by which all the discharge cells can fire the discharge during the reset period. A difference between the voltage applied to the address electrode of the discharge cell to be selected and the voltage applied to the scan electrode is established to be greater than the maximum discharge firing voltage.

Abstract: The present invention provides a plasma display device including: a plurality of scan electrodes sequentially scanned to be impressed with a scan pulse; an address electrode that is impressed with an address pulse corresponding to the scan pulse, for selection of a display pixel; a scan driving circuit generating the scan pulse; and an address driving circuit generating the address pulse. The address pulse rises in n stages (n is an integer equal to or larger than 2), and a period in a period during which the address pulse rises from a lowest voltage to a highest voltage overlaps a scan pulse immediately prior to the scan pulse corresponding to the address pulse.

Abstract: The number of subfields that are to be allocated to a luminance level in an input picture signal is changed in accordance with the peak luminance level in one field's worth of the input picture signal if the luminance level is lower than a predetermined luminance.

Abstract: The aim is to improve the display capability of a PDP at lower gray scale levels by driving the PDP in a manner to adjust the luminance of Gray Scale 1 to an appropriate level. According to the drive method, one TV field is divided into a plurality of subfields SF 1, SF 2 . . . each having a reset period, an address period, and a sustain period. During the address period of SF 1, the sustain electrodes are held at a voltage (potential) Ve1. During the address period in SF 2 and the subsequent subfields, the sustain electrodes are held at a voltage (Ve+Ve2) The voltage Ve1 is higher than the ground voltage and lower than the voltage (Ve+Ve2).

Abstract: In a plasma display device comprising: plural first, second, and third electrodes disposed adjacently and extending in a first direction, the third electrodes being provided between the first and second electrodes for repeating discharges; a dielectric layer covering the electrodes; a first electrode driving circuit for driving the first electrodes; a second electrode driving circuit for driving the second electrodes; and a third electrode driving circuit for driving the third electrodes, grayscale display is performed by a sub-field method, and the third electrodes are set to have a potential approximately the same as that of the first or second electrode at the discharge in the repetitive discharges. In this plasma display device, the third electrode driving circuit makes the third electrode operate as an anode at least once at least in one sub-field from minimum luminance and makes it operate as a cathode in the rest thereof.

Abstract: The present invention provides a method of driving a plasma display panel that displays an image with high brightness, high contrast, and high display quality by stabilizing selective initializing operation. To realize it, a plurality of subfields each having a setup period, an address period, and a sustain period are provided in one field period. Retention time for retaining voltages to be applied to a scan electrode and a sustain electrode is provided between time when voltage for weakening the final sustain discharge in the sustain period is applied to the sustain electrode and time when a ramp waveform voltage which decreases is applied to the scan electrode in the setup period in the following subfield. The retention time is controlled based on average brightness of image signals or ambient temperature.

Abstract: A method for enhancing an image includes applying an auto-level transformation to an original image to form a first image, applying an auto-contrast transformation to the original image to form a second image, and applying an auto-brightness transformation to the original image to form a third image. The method further includes applying a color cast correction to the first, the second, and the third images to generate a first group of images, applying a gamma correction to the first group of images to generate a second group of images, applying a sharpening correction to the second group of images to generate a third group of images, and presenting the third group of images to a user to select a final result.

Abstract: An element driving transistor controls an amount of power supplied from a power supply PVDD to an element to be driven (display element) provided in a pixel of each row. A storage capacitor has a first electrode connected to a gate electrode of an element driving transistor and a second electrode connected to a capacitor line. A voltage level of a capacitor control signal SCn to be output to the capacitor line is set to a voltage level which controls the element driving transistor via the storage capacitor Cs to be periodically switched off. A V driver formed at a periphery of a display portion of a panel has a generator which generates a capacitor control signal SCn using outputs of registers which sequentially transfer and output a signal according to a V start signal STV so that the off-control period of the element driving transistor is determined according to the H level period of the V start signal STV.

Abstract: A plasma display panel and driving method thereof. Waveforms for performing a reset operation, an address operation, and a sustain operation are applied to a scan electrode while a sustain electrode is biased with a predetermined voltage, and it is controlled such that the absolute value of a positive voltage of sustain voltage pulses applied to the scan electrode in the sustain period may be greater than the absolute value of a negative voltage thereof. Further, an address electrode is floated when a waveform having a sustain discharge function is applied to the scan electrode, and the voltage at the address electrode is controlled to be increased and decreased according to the voltage at the scan electrode.

Abstract: A plasma display apparatus and a driving method thereof are provided. In the inventive plasma display apparatus and the driving method, when an image is displayed by dividing one subfield into a reset period, an address period, and a sustain period, a second sustain pulse applied in the sustain period of the one subfield has a sustain voltage applying time point different from that of a first sustain pulse.

Abstract: A detection unit which includes an image display panel, brightness averaging unit, scene changeover detection unit, and brightness suppression unit in order to provide an image display apparatus having an ABL that does not give the observer any visual sense of incompatibility without increasing the circuit scale determines the presence/absence of a scene changeover on the basis of the frame differential or second order differential of the average brightness. If a scene changeover takes place, the display brightness is changed quickly, and if no scene changeover occurs, changed slowly.

Abstract: A driving method of a plasma display panel, the plasma display panel including a plurality of first electrodes and a plurality of second electrodes, and a plurality of third electrodes which lie in a direction perpendicular to that of the first electrodes and the second electrodes. The second electrode is biased at a first voltage during the reset period, the address period, and the sustain period. A voltage of the first electrode is increased from a second voltage to a third voltage. The voltage of the first electrode is decreased from a fourth voltage to a fifth voltage during the reset period. The fifth voltage is lower than the lower voltage among the voltages that are applied for a sustain discharge in the sustain period.

Abstract: A plasma display, a driver for the plasma display, and a driving method thereof apply a reset minimum voltage according to a detected temperature of the plasma display. In the driving method, a reset falling waveform gradually decreasing to a reset minimum voltage is applied to a scan electrode during a falling period of a reset period, and a scan voltage is applied to the scan electrode selected during an address period. An address period is started the voltage applied to the scan electrode reaches the reset minimum voltage. In addition, a voltage difference between the reset minimum voltage and the scan voltage is determined according to a temperature of the plasma display.

Abstract: A method and apparatus for adjusting a gain for each position of a plasma display panel for improving a brightness uniformity of a picture field is disclosed. In the method and apparatus, a gain of data to be displayed at a first position of a field of the plasma display panel is controlled into a first gain value. A gain of data to be displayed at a second position of said field is controlled into a second gain value.

Abstract: According to the invention, by forming at least every two frames having video contents corresponding to each frame of a video signal, for example, a frame rate of movie contents whose frame rate is equal to 24 Hz is converted into 48 Hz. A plurality of subfields (SFs) corresponding to each frame of the conversion signal are divided into first and second division SF groups. Each division SF group is further classified into an upper SF group on the large weight side and a lower SF group on the small weight side. The weights of the upper SF groups are made symmetrical between the first and second division SF groups. The weight of each SF belonging to the lower SF group in the first division SF is set to be larger than that in the second division SF.

Abstract: A plasma display panel (PDP) and a method for driving the PDP. An ON/OFF pattern of an externally-inputted image signal is checked to sense a sustained discharge occurring in discharge cells respectively corresponding to scan electrodes included in a particular one of multiple scan electrode groups over a predetermined time. A control operation is carried out in response to the sensing of the sustained discharge to allow a discharge to occur in discharge cells respectively corresponding to scan electrodes included in the scan electrode groups other than the particular scan electrode group.

Abstract: A plasma display panel (PDP) includes first and second substrates provided in opposition to one another, address electrodes formed on the first substrate, barrier ribs mounted between the first and second substrates so as to define a plurality of discharge cells, phosphor layers formed in the discharge cells, first and second electrodes formed on the second substrate, and third electrodes mounted between the first and second electrodes at positions corresponding to the discharge cells. The first and second electrodes are positioned further from the second substrate than the third electrodes, and a spacing is provided between the first and second electrodes. A method for driving the PDP includes (a) applying a reset waveform to the third electrodes during a reset interval, (b) applying a scan pulse to the third electrodes during an address interval, and (c) applying a sustain discharge voltage alternately to the first and second electrodes during a sustain discharge interval.

Abstract: A method of controlling the gray scale of a plasma display device has a forming step of forming a frame for an image by a plurality of subframes each having a different brightness, a setting step of setting the number of sustain emissions of each subframe in an anti-geometrical progression corresponding to the brightness of each subframe, and a displaying step of displaying the image on the plasma display device by a gray scale display having a specific brightness. The number of sustain emissions in each subframe is set individually by the each subframe, and this establishes a linear relation between the gray level and the corresponding brightness Therefore, an enhancement of display quality of the plasma display device can be realized.