Abstract: A plasma display device including a plasma display panel (PDP), a temperature detector for detecting temperature of the PDP, a driver for applying a driving voltage to a scan electrode, and a controller for generating a control signal to control the driver according to the temperature. The driver includes a transistor and first and second resistors. The transistor is coupled between a first power source and the scan electrode. The first power source supplies a scan voltage to the scan electrode. At least one of the first resistor and the second resistor is a variable resistor having a resistance that varies according to the control signal of the controller. A low discharge due to high temperature can be reduced or prevented, and the number of power sources of the plasma display device can be reduced.

Abstract: A AC type plasma display apparatus has been disclosed, which satisfies various requirements such as the number of gradations that can be displayed, the display luminance, and the upper limit of power and, further, the efficiency of light emission and the luminance can be increased as much as possible and the display quality of which is not deteriorated. In the plasma display apparatus, a frame is composed of plural subfields, an image is displayed by causing a sustain discharge to occur in each subfield, the sustain discharge can be caused to occur by at least a first sustain waveform and a second sustain waveform different from the first sustain waveform, and the ratio of the first sustain waveform to the second sustain waveform changes, both waveforms being used to cause the sustain discharge to occur in each subfield.

Abstract: A plasma display panel is driven by providing a plurality of subfields within one field period, the subfield having an initializing period in which the initializing discharge is generated in a discharge cell by applying a ramp-waveform voltage that is gradually descending to a scan electrode, an address period in which an address discharge is generated in the discharge cell by applying a scan pulse voltage to the scan electrode, and a sustain period in which sustain discharges by the number of times corresponding to the luminance weight are generated in the selected discharge cell. The lowest voltage is set of the descending ramp-waveform voltage in the subfield where the luminance weight is the smallest lower than the same voltage in the subfield where the luminance weight is the largest, and a voltage is kept for a prescribed period after the descending ramp-waveform voltage reaches the lowest voltage in the subfield where the luminance weight is the smallest.

Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel including an address electrode, and a data driver. The data driver supplies a data signal having at least three voltage levels to the address electrode during an address period using different voltages received from first and second constant voltage sources.

Abstract: An image display apparatus of a present invention has a rear plate having a plurality of electron-emitting devices, a face plate having a light-emitting member, a high-voltage power source which applies a high voltage to the light-emitting member, a current detecting unit which detects an emission current from the electron-emitting devices, and a bypass capacitor. One end of the bypass capacitor is connected between the high-voltage power source and the current detecting unit, and the other end of the bypass capacitor is connected to a potential regulating electrode, and an electrostatic capacitance Cp of the bypass capacitor satisfies a following formula: Cp>?A/d where ?: permittivity of vacuum, A: an area of the light-emitting member, and d: a distance between the rear plate and the face plate.

Abstract: A plasma display panel including a front substrate and a back substrate facing each other across a discharge space, and a plurality of row electrode pairs and a plurality of column electrodes extending in a direction orthogonal to the row electrodes. The row electrodes and said column electrodes being provided between the front substrate and the back substrate and forming unit light emission areas at intersections with each other within the discharge space. A crystal having a volumetric particle-size distribution in which a ratio of a crystal having a particle size of 0.7 ?m or less is 25% or less, is provided in an area facing the discharge space between the front substrate and the back substrate.

Abstract: A plasma display apparatus includes a data driver and a plasma display panel having a first address electrode and a second address electrode. The data driver is configured to initiate a change in a voltage value of a first data signal supplied to the first address electrode at a first initiation time, and to initiate a change in a voltage value of a second data signal supplied to the second address electrode at a second, different initiation time. Each of the data signals gradually changes from a first data voltage to a second data voltage during a respective first period, maintains at the second data voltage during a respective second period, and gradually changes from the second data voltage to a third data voltage during a respective third period.

Abstract: An image display apparatus includes a display panel having a plurality of electron emission portions that emit electrons, a plurality of light emitting regions positioned corresponding to the plurality of electron emission portions to emit light in response to irradiation of electrons from the electron emission portion thereon, and a shielding member provided between a substrate having the electron emission portions provided thereon and an opposing substrate having the light emitting regions thereon, and a correction circuit that corrects a pixel signal for modulating the electron emission portions. The shielding member shields electrons reflected from peripheral light emitting regions adjacent to a predetermined one of the light emitting regions to the predetermined light emitting region, and irradiates electrons from the shielding member to the predetermined light emitting region.

Abstract: A method of driving a plasma display panel for avoiding an erroneous discharge. The plasma display panel has display cells formed at respective intersections of row electrode pairs and a column electrode, wherein one field of a video signal is comprised of a plurality of sub-fields, and a reset period is provided prior to an addressing period of a starting sub-field. The method has a light emission load state detection stage for detecting a light emission load state of the plasma display panel according to the video signal in the preceding field, and a first stage in the reset period for applying the first row electrodes with a pulse of a first polarity which has an applied voltage value increased over time to reach a predetermined target potential, wherein the first stage includes controlling the target potential of the first polarity pulse according to the light emission load state.

Abstract: A plasma display apparatus and a method of driving the plasma display apparatus are provided. A maintenance period of a sustain signal changes depending on a temperature of a plasma display panel or an ambient temperature of the plasma display panel.

Abstract: There is provided a plasma display device. The plasma display device includes a plasma display panel (PDP) and a driving unit for generating driving signals for driving the PDP. A period in which sustain signals are supplied to the PDP includes a first period in which sustain signals supplied to the PDP gradually increase from a reference voltage to a first voltage, a second period for sustaining a second voltage higher than the first voltage, a third period gradually falling from the second voltage to a third voltage higher than the reference voltage, and a fourth period for sustaining the reference voltage. The length of the first period is shorter than the length of the third period. The first switch is turned on at a point of time before the magnitude of current that flows through the inductor reaches a maximum value and then, becomes 0 in the first period.

Abstract: A plasma display device includes a plasma display panel having a plurality of discharge cells, and a drive circuit for applying a driving voltage to a display electrode of this plasma display panel. One field is composed of a plurality of subfields. Each subfield includes an address period for selecting a discharge cell to be discharged and a sustain period in which a sustain discharge is carried out in the discharge cell to be selected in this address period. The plasma display panel is configured by forming a base film on the dielectric layer covering the display electrodes, and attaching a plurality of crystal particles made of metal oxide to the base film so as to be distributed over an entire surface. The drive circuit is configured so that a voltage having a pulse width of not more than 1 ?s is applied to the data electrode in the address period.

Abstract: There is provided a plasma display device. The plasma display device includes a plasma display panel (PDP) and drivers for supplying driving signals to the PDP. The driver includes a capacitor, a first switch turned on in order to supply a voltage of a first end of both ends of the capacitor to the PDP, a second switch turned on in order to supply a voltage of a second end of both ends of the capacitor to the PDP, a first voltage supplier connected to the first end of the capacitor to supply one of a sustain voltage and a reference voltage to the first end, and a second voltage supplier connected to the second end of the capacitor to supply the reference voltage to the second end. A voltage difference between the both ends of the capacitor is sustained as the sustain voltage.

Abstract: The present invention relates to a method of driving a plasma display panel and a plasma display apparatus employing the same. In the plasma display apparatus, a plurality of scan electrodes formed in a plasma display panel are divided into first and second groups and then supplied with scan signals. When a scan bias voltage supplied in a first subfield of first and second subfields is higher than that supplied in a second subfield of the first and second subfields, a lowest voltage of a reset signal supplied in the second subfield is higher than that supplied in the first subfield. In accordance with the plasma display apparatus of the present invention, the lowest voltage of the reset signal is controlled according to the scan bias voltage in dividing the plurality of scan electrodes into two or more groups and driving them.

Abstract: The present invention relates to a plasma display apparatus and, more particularly, to a method of driving a plasma display panel. The plasma display apparatus includes a plasma display panel including a plurality of scan electrodes and sustain electrodes formed on an upper substrate, and a plurality of address electrodes formed on a lower substrate, and a driver for supplying driving signals to the plurality of electrodes. The plurality of scan electrodes are divided into first and second groups and then supplied with scan signals, and scan bias voltages supplied to the first and second groups in at least any one period of an address period are different from each other. In at least one of a plurality of subfields constituting one frame, a width of a first sustain signal of a plurality of sustain signals supplied during a sustain period is larger than a width of each of the remaining sustain signals.

Abstract: A method for driving a plasma display device including first electrodes and second electrodes. In one embodiment, the plurality of first electrodes are divided into a plurality of groups including first and second groups. During a first period of a sustain period, a second voltage is applied to the first and second groups of the first electrodes while a first voltage is applied to the second electrodes, the second voltage being higher than the first voltage. During a second period of the sustain period, while the second voltage is applied to the second electrodes, the first voltage is applied to the first group of the first electrodes, and the first voltage is applied to the second group of the first electrodes a period of time after when the first voltage is initially applied to the first group of the first electrodes.

Abstract: A display apparatus, which displays a color image by controlling the number of emissions or the intensity thereof in accordance with primary color video signals input thereto, has a detection portion and a white balance correction portion. The detection portion is used to detect the number of emissions or the intensity, and the white balance correction portion is used to correct white balance by adjusting the amplitudes of the primary color video signals in accordance with the detected number of emissions or the detected intensity. Therefore, correct white balance can be maintained regardless of the number of emissions or the intensity of emission.

Abstract: A plasma display panel and a plasma display apparatus are disclosed. The plasma display panel includes a front substrate including a scan electrode and a sustain electrode positioned parallel to each other, an upper dielectric layer positioned on the scan and sustain electrodes, a rear substrate on which an address electrode is positioned to intersect the scan and sustain electrodes, a lower dielectric layer positioned on the address electrode, a barrier rib positioned between the front substrate and the rear substrate to partition a discharge cell, and a phosphor layer positioned inside the discharge cell. The upper dielectric layer includes a glass-based material and a blue pigment. The phosphor layer includes a phosphor material and MgO material.

Abstract: In the initializing period of each of sub-fields comprising one field, one of all-cell initializing operation and selective initializing operation is performed. The all-cell initializing operation causes initializing discharge in all the discharge cells for displaying an image. The selective initializing operation selectively causes initializing discharge only in the discharge cells subjected to sustaining discharge in the preceding sub-field. Provided in the all-cell initializing period is an abnormal charge erasing part in which application of a rectangular waveform voltage to the scan electrodes causes self-erasing discharge in the discharge cells having excessive wall voltage accumulated therein.

Abstract: A plasma display apparatus, and more particularly, a driving method and improved structure of a plasma display apparatus are provided. A sustain signal that alternates between a positive polarity and a negative polarity is supplied to only one electrode. Therefore, it can facilitate the adoption of an integrated driving board. Furthermore, a voltage magnitude of a set-up signal supplying in any one of the remaining sub-fields other than a first sub-field of a frame is less than the voltage magnitude of the set-up signal supplying in the first sub-field. It is therefore possible to increase the contrast.

Abstract: The present invention relates to a plasma display apparatus and driving method thereof, in which an afterimage occurring when the plasma display panel is turned on can be obviated and an erroneous discharge phenomenon and damage to elements can be prevented. A plasma display apparatus according to an aspect of the present invention comprises a plasma display panel including a scan electrode and a sustain electrode, and a controller for applying a sustain pulse, which is the first applied pulse, to the scan electrode and the sustain electrode for a predetermined time after the plasma display panel is turned on. The present invention is advantageous in that it can obviate an afterimage occurring when a plasma display panel is turned on and can prevent an erroneous discharge phenomenon and damage to elements by improving a driving apparatus of the plasma display panel.

Abstract: The present invention provides a multicolor display optical composition comprising a dispersion medium, a periodic structure having a porous structure inside communicated with the outside, and mobile particles contained in the dispersion medium so as to be movable and having a volume average primary particle diameter from 1 nm to 80 nm in a dispersion state in the dispersion medium, a volume average particle diameter of coagulated particles of 100 nm or larger in optical coagulation state by stimulation application, and having a refractive index different from that of the dispersion medium by 0.1 or more, wherein the mobile particles show no coloration in the dispersion state when the particles are dispersed in the dispersion medium and show white coloration with a predetermined whiteness value or higher in the coagulation state when the particles are coagulated, an optical device, and a display method of the optical device.

Abstract: A display module includes a substrate. The substrate has a plurality of pixels, a signal line, a current supply line, and a data driving circuit. The pixel includes an emitting device and an active device, wherein the emitting device include a first electrode layer, an organic emitting layer formed on the first electrode layer, and a second electrode layer formed on the organic emitting layer, and the data driving circuit is disposed between a display area and a first side of the substrate on which an external terminal is placed. A third electrode layer is provided within a sealing area disposed between the display area and a second side of the substrate, and on a layer below the passivation film, and the second electrode layer is connected to the third electrode layer through a plurality of contact holes formed above the third electrode layer.

Abstract: A double-faced display apparatus includes a first transparent substrate, second transparent substrate, frame adhesive, first OELD, second OELD, first buffer layer, second buffer layer, first absorbent layer and second absorbent layer. The second transparent substrate is disposed in parallel to the first transparent substrate. The frame adhesive is disposed between the first transparent substrate and second transparent substrate for defining a space. The first OELD is disposed in the space and located on the first transparent substrate. The second OELD is disposed in the space and located on the second transparent substrate. The first buffer layer is disposed in the space and covers the first OELD. The second buffer layer is disposed in the space and covering the second OELD. The first absorbent layer is disposed in the space and covers the first buffer layer. The second absorbent layer is disposed in the space and covers the second buffer layer.

Abstract: A display apparatus includes a plasma display panel (PDP) having an upper substrate at which black matrices are disposed. The apparatus includes an external light shield having a panel side facing a display surface of the PDP and an opposing viewer side facing away from the display surface. The light shield includes a base unit and includes pattern units that absorb external light from the viewer side. The pattern units have boundaries defined by intersections of the pattern units and the base unit. The boundaries define widths of pattern tops disposed toward the panel side or the viewer side and define widths of pattern bottoms disposed toward the other of the panel side and the viewer side. A distance between a pair of adjacent black matrices is 4 to 12 times greater than a distance between adjacent boundaries, of a pair of adjacent pattern units, at adjacent pattern bottoms.

Abstract: A display device includes a display panel having a display region formed with a plurality of thin film transistors, a light emitting layer disposed in the display region, and a driver supplying a driving signal including a gate signal and a data signal to the thin film transistors. At least one voltage pad is disposed outside of the display region on the display panel to supply a reference voltage to the display region, a power generator generates the reference voltage, and a flexible film is connected between the voltage pad and the power generator to transmit the reference voltage. At least one of the driver and the power generator includes an external power input unit that receives external power.

Abstract: The present invention relates to a plasma display panel, and more specifically, a method and an apparatus for driving a plasma display panel.

Abstract: A power saving device includes a first power connector adapted for connecting to a power source, a second power connector adapted for connecting to a power wire of a display, an infrared sensor, an infrared coupling circuit, a wave shaping circuit, and a switch circuit connected between the first and second power connectors. The infrared sensor senses user status and initiates a user status signal. The wave shaping circuit receives the user status signal via the infrared coupling circuit and converts the user status signal to a voltage signal. The switch circuit receives the voltage signal and converts the voltage signal to a control signal to control the connection between the first power connector and the second power connector.

Abstract: A method for driving a plasma display panel is provided in which wasteful power consumption is reduced and light emission efficiency is improved when the number of cells to be lighted is relatively small. The method includes classifying a display ratio into plural group ranges, selecting a suitable display pulse waveform for each group range, detecting the display ratio of an object to be displayed in a real display, and plural types of display pulses having different waveforms are used differently in accordance with the result of the detection. The display ratio means a ratio of the number of cells to be lighted to the number of cells of the screen.

Abstract: The present invention relates to a plasma display panel, and more specifically, a method and an apparatus for driving a plasma display panel.

Abstract: An organic light emitting device includes a first pixel displaying a first color, a second pixel adjacent to the first pixel and displaying a second color, and a third pixel adjacent to the first pixel or the second pixel and displaying a third color, wherein the first pixel includes a first and second subpixel units that output respective lights having different color characteristics.

Abstract: It is a problem to provide a light-emitting device capable of obtaining a constant brightness without being affected by deterioration in an organic light-emitting layer or temperature change, and of making desired color display. The lowering in OLED brightness due to deterioration is reduced by causing the OLED to emit light while keeping constant the current flowing through the OLED instead of causing the OLED to emit light while keeping constant the OLED drive voltage. Namely, OLED brightness is controlled not by voltage but by current thereby preventing against the change in OLED brightness due to deterioration of OLED. Specifically, the drain current Id of a transistor for supplying a current to the OLED is controlled in a signal line drive circuit thereby keeping constant the drain current Id without relying upon the value of a load resistance.

Abstract: The present invention relates to a switching mode power supply circuit for a plasma display panel comprising an input unit, a PFC (Power Factor Correction) unit, an output unit and a standby unit, wherein the standby unit includes a standby block for outputting a standby voltage by being connected to an AC filter stage of the input unit, a sequence block for sequentially applying power of the output unit and a control block which is connected between the standby block and the sequence block and inputs the standby voltage outputted from the standby block to the sequence block only in case that a PS_ON signal is applied.

Abstract: A power supply of a plasma display device includes a power source unit configured to convert a direct current source into an alternating current source, a transformer including a primary side winding electrically coupled to the power source unit and a secondary side winding having a first winding and a second winding, a sustain power supply electrically coupled to the first winding of the secondary side of the transformer, the sustain power supply configured to output a first voltage to a first voltage output terminal, and an address power supply electrically coupled to the second winding of the secondary side and serially connected to the sustain power supply, the address power supply configured to output a second voltage to a second voltage output terminal.

Abstract: A plasma display panel and a manufacturing method thereof are disclosed. The panel includes a substrate having a plurality of discharge cells, and barrier ribs defining the discharge cells, the barrier ribs contain carbon in an amount of 0.1 to 10% by weight.

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: Disclosed therein is an apparatus for driving a plasma display panel, with a simple structure.

Abstract: The present invention relates to an organic electroluminescent display, including a substrate, a set of anodes, an organic functional layer, a set of cathodes and a packaging sheet, wherein a set of electrode leads are disposed on the packaging sheet for electrical connection with a control circuit of the display, and the electrode leads includes a set of anode leads and a set of cathode leads which are electrically connected with the corresponding anodes and cathodes on the substrate, respectively. The present invention further relates to a double-sided organic electroluminescent display having the above features.

Abstract: There is provided a driver for a plasma display panel having a separated board structure that can reduce parasitic resonance by shortening the length of a cable used for power transmission by separating a board having a Y electrode switch thereon from a board having an X electrode switch thereon.

Abstract: A drive circuit for driving a plasma display panel (PDP) includes a pulse voltage generator that contains main switching elements disposed on a high voltage side and on a low voltage side, is operable to generate a pulse voltage by operating the main switching elements in accordance with an output voltage from a first power supply and apply the pulse voltage to a PDP scan electrode and sustain electrode, and a reset voltage generator operable to generate a reset voltage in accordance with an output voltage from a second power supply and apply it to the PDP. The pulse voltage generator contains a first diode that prevents the voltage output by the reset voltage generator from being applied backward to the first power supply and a first switching element connected to the first diode in parallel.

Abstract: A plasma display apparatus and a method of driving the same are disclosed. The plasma display apparatus includes a plasma display panel including a scan electrode, and a scan driver that supplies a setup pulse to the scan electrode. The setup pulse gradually rises to a first voltage level with a first slope, rises from the first voltage level to a second voltage level with a second slope smaller than the first slope, and rises from the second voltage level to a third voltage level with a third slope different from the second slope.

Abstract: Disclosed is a method of driving a plasma display panel and apparatus thereof enabling to minimize power consumption for driving the plasma display panel. 1. The present invention includes the steps of generating a reset discharge by supplying ramp waves so as to equalize cells in the plasma display panel in a reset period, supplying selected specific ones of the cells with a scan voltage pulse swinging between a lowest voltage levels of the reset discharge and a data pulse of a voltage level lowered as much as a negative voltage level of the scan voltage pulse, generating an address discharge by the scan voltage pulse and data pulse applied to the selected cells in an address period, and maintaining the address discharge for a sustain period.

Abstract: The priming or conditioning of an AC gas discharge plasma display panel for improved selective write and selective erase which comprises addressing n number of rows in an order or sequence that is changed from frame to frame such that later rows to be addressed are advanced in the sequence with each subsequent frame. Each frame consists of the addressing of all n rows. Specific embodiments include the use of plasma-shells, plasma-tubes, and/or combinations thereof.

Abstract: A plasma display apparatus comprises a plasma display panel and a scan driver. The plasma display panel comprising a first scan electrode, a second scan electrode, and a sustain electrode. The scan driver supplies the first scan electrode with a first scan signal, supplies the first scan electrode and the second electrode with a first signal for emitting light, and then supplies the second scan electrode with a second scan signal that falls down from a scan reference voltage, and supplies the first scan electrode with a voltage that is different from the scan reference voltage while the second scan signal is supplied.

Abstract: An organic electroluminescence display device and a fabrication method thereof is described. The organic electroluminescence display device includes first and second substrates. A cathode including a transparent conductive material and a thin metal film, an organic electroluminescence (EL) layer formed on the cathode, and an anode formed on the organic EL layer are formed on the first substrate. A driving transistor that contains a drain electrode is formed on the second substrate. The first and second substrates are bonded to each other such that the drain electrode contacts the anode.

Abstract: A plasma display panel. A first substrate and a second substrate are provided opposing one another with a predetermined gap therebetween. Address electrodes are formed on the second substrate. Barrier ribs are mounted between the first substrate and the second substrate, the barrier ribs defining a plurality of discharge cells and a plurality of non-discharge regions. Phosphor layers are formed within each of the discharge cells. Discharge sustain electrodes are formed on the first substrate. The non-discharge regions are formed in areas encompassed by discharge cell abscissas and ordinates that pass through centers of each of the discharge cells. Also, external light absorbing members are formed between the second substrate and the barrier ribs layer at areas corresponding to locations of the non-discharge regions.

Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel for displaying an image by a frame comprising a plurality of subfields, and a driver for, when a vertical frequency of an image signal inputted is less than a critical frequency, dividing the frame into a first subfield group and a second subfield group each comprising one or more subfields, the number of subfields of the first subfield group being different from the number of subfields of the second subfield group, and when the vertical frequency is more than the critical frequency, constituting the frame by a third subfield group comprising one or more subfields.

Abstract: A functional sheet is brought into intimate contact with a front surface of a plasma display panel, and the functional sheet has a structure in which heat diffusion is superior to heat insulation between the plasma display panel and outside air. In addition, a display device includes a controller for controlling a drive voltage pulse train so that power consumption in a unit area in a light emission region within the screen is limited under a set value when one image is displayed.

Abstract: There is provided a plasma display apparatus comprising a plasma display panel and a driver. The plasma display panel includes a first electrode and a second electrode. The driver alternately supplies a first sustain signal and a second sustain signal to the first electrode and the second electrode in a first subfield and supplies a third sustain signal and a fourth sustain signal that swing a positive polar voltage and a negative polar voltage in a second subfield to the first electrode and the second electrode.

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.