Abstract: Disclosed is an image processing method for reducing power consumption of an OLED display device. A method of the present invention comprises the steps of: receiving image data; determining whether a frequency of a predetermined area of the image data is lower than a predetermined reference; deciding a minimum value among a plurality of blue data values of the predetermined area when the frequency of the predetermined area is lower than the reference as a result of the determination; and changing blue data of the predetermined area on the basis of the determined minimum value.

Abstract: Disclosed is an image processing method for reducing power consumption of an OLED display device. A method of the present invention comprises the steps of: receiving image data; determining whether a frequency of a predetermined area of the image data is lower than a predetermined reference; deciding a minimum value among a plurality of blue data values of the predetermined area when the frequency of the predetermined area is lower than the reference as a result of the determination; and changing blue data of the predetermined area on the basis of the determined minimum value.

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: The present invention relates to a plasma display apparatus and driving method thereof. According to the present invention, the plasma display apparatus includes a plasma display panel in which scan electrodes and sustain electrodes are formed, and a scan driving unit that applies a scan voltage and a sustain voltage whose absolute values are the same to the scan electrodes, wherein the sustain electrodes are kept to the ground.

Abstract: There is provided a plasma display apparatus and a driving method of a plasma display panel. The plasma display apparatus comprises a plasma display panel comprising a first electrode and a second electrode, and an electrode driver alternatively applying a sustain pulse of a first polarity to the first electrode and the second electrode and applying a pulse of a second polarity opposite to a first polarity after a magnitude of a voltage of a sustain pulse of a first polarity is maximized. Therefore, it is possible to increase discharge efficiency without rising a driving voltage or increasing an electrode space by increasing an amount of space discharge.

Abstract: The present invention relates to a plasma display apparatus and method for driving the same. According to the present invention, the plasma display apparatus includes a plasma display panel having a first electrode and a second electrode, and a third electrode which is crossed with the first electrode and the second electrode, a scan driving unit for applying a sustain pulse, which rises from a first bias voltage of the negative polarity up to a sustain voltage, to the first electrode, and a sustain driving unit for applying a sustain pulse, which rises from a second bias voltage of the negative polarity up to a sustain voltage, to the second electrode in an alternate manner with the sustain pulse applied by the scan driving unit.

Abstract: Disclosed herein is an apparatus and method for driving a plasma display panel, wherein electromagnetic interference is minimized and stability is improved. According to the present invention, the apparatus for driving a PDP includes a plurality of scan electrodes and sustain electrodes, which are formed parallel to each other, and a scan driving unit for alternately supplying sustain pulses of the positive polarity and the negative polarity to the scan electrodes during a sustain period, wherein the sustain electrodes are connected to a ground voltage source, and thus always keep a ground voltage.

Abstract: The present invention relates to an apparatus for driving a plasma display panel, and more particularly, to an apparatus for driving a plasma display panel including a scan driver. According to an embodiment of the present invention, an apparatus for driving a plasma display panel includes one switching device to apply a scan pulse per one Y-electrode wherein the switching device is turned on to apply the scan pulse to the selected Y-electrode and wherein other switching devices are turned off. By performing scan and sustain processes using one switching device only, the present invention reduces the costs and the volume of the scan driver. Specifically, by turning on the switching device corresponding to the selected channel only and by turning off the switching devices corresponding to other channels, the present invention minimizes power consumption.

Abstract: A spacer discharging apparatus and method of a field emission display (FED) are disclosed. The spacer discharging apparatus of an FED includes a first resister connected between an anode electrode of the FED and a high voltage power source unit applying a high voltage to the anode electrode, and a switch unit connected to the anode electrode and the first resister and selectively connecting the anode electrode and the spacer ground electrode of the FED.

Abstract: The present invention relates to an ink jet printer for display device fabrication, and more particularly, to an apparatus and a method of driving an ink jet printer for manufacturing a display device. According to a first embodiment of the present invention, an apparatus of driving an ink jet printer for manufacturing a display device includes a timing control unit outputting a timing control signal by receiving a prescribed signal (IN) inputted from outside, a head drive unit receiving the timing control signal outputted from the timing control unit and a prescribed drive voltage (Vh), the head drive unit outputting a drive pulse of a predetermined voltage level, and an array resistor outputting a head drive voltage to a plurality of heads by receiving the drive pulse outputted from the head drive unit, wherein the head drive voltage outputted from the array resistor maintains a predefined voltage value.

Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes an electrode driver and a plasma display panel. The electrode driver supplies a first data pulse corresponding to an image to a first electrode, and supplies a second data pulse corresponding to the image to a second electrode. The plasma display panel includes the first electrode and the second electrode, displays the image in a first area for a reference time, and displays the image in a second area different from the first area after the reference time.

Abstract: A plasma display apparatus comprises a controller receiving and processing the same image signal during each unit period, a plasma display panel including a discharge cell corresponding to an area where a first electrode and a second electrode, and displaying an image corresponding to the same image signal, a first electrode driver supplying a data pulse corresponding to a variation of a grey level of the discharge cell to the first electrode when an accumulation time of the unit period is greater than a reference time and a second electrode driver supplying the same number of sustain pulses to the plurality of second electrodes during each unit period.

Abstract: A method of driving a plasma display apparatus is disclosed. In the method, a first pulse of a negative polarity is applied to a scan electrode prior to a reset period. A second pulse is applied to the scan electrode during the reset period. The second pulse gradually rises from a first voltage to a second voltage with a first slop, and then gradually rises from the second voltage to a third voltage with a second slope. The first slope is different from the second slope.

Abstract: A method of driving a plasma display apparatus is provided. In the method, a positive first pulse and a negative second pulse are alternatively supplied to a first electrode in a sustain period. A second electrode sustains a ground level in a second electrode while the positive first pulse is supplied to the first electrode. Then, the absolute voltage values of the positive first pulse and the negative second pulse are controlled to be different.

Abstract: A field emission display device is provided which includes data lines formed in a panel, scan lines formed in the direction crossing the data lines in the panel, a first connector installed at an end of the data lines and electrically connected with the data lines, a second connector installed at an end of the scan lines and electrically connected with the scan lines and a printed circuit board which is installed on the rear surface of the panel. The flat emission display device can display an image of a uniform brightness regardless of the position of the screen. Also, the flat emission display device can maintain the brightness of the whole screen uniformly by differently supplying the driving voltage and pulse width of the driving voltage which are supplied to the data driving unit according to the position of the data line, and compensating voltage descending caused by differences in the resistance according to the is position of the scan line by converting the input data value.

Abstract: A field emission display device is disclosed. Since the size of the cells adjacent to the spacer is set smaller than the size of the other cells, the luminance and aperture rate of the panel can be improved. In addition, the width of the pulse supplied to the cells adjacent to the spacer and the width of the pulse supplied to the cells not adjacent to the spacer are set different, so that the same luminance can be displayed in every cell.

Abstract: An electroluminescence (EL) panel display and its driving method are capable of easily setting a color balance and improving a luminance, for which an EL panel includes a first substrate having a plurality of red and green inorganic materials thereon and a second substrate having a plurality of blue inorganic materials overlapped with the red and green inorganic materials.

Abstract: A plasma display apparatus, a plasma display panel, and a driving device and method thereof are provided. The plasma display apparatus includes including: a plasma display panel having a scan electrode, a sustain electrode and an address electrode for applying a predetermined voltage by constituting one frame of a combination of a plurality of subfields having the different number times of emission and dividing each subfield into a reset period, an address period, and a sustain period; and a scan driver for supplying a scan reference voltage, which is greater than the lowest voltage of the reset period and is less than or the same as a reference voltage of the sustain period, and a scan pulse voltage, which is less than the scan reference voltage, to the scan electrode during the address period.

Abstract: A driving apparatus of an electroluminescent display device includes: a scan driving unit for receiving a voltage from a single voltage source and sequentially supplying a scan pulse of which polarity is reversed by the frame unit to scan lines; and a data driving unit for receiving the voltage and sequentially supplying a data pulse with an opposite polarity to the polarity of the scan pulse to data lines. An optimum voltage to a pixel cell can be supplied by completely removing electric charges charged in the pixel cell by reversing a positive pulse or a negative pulse generated by a single power source by the frame unit and supplying it to each data line and scan line.

Abstract: In a flat panel display and an operation method thereof capable of lowering a capacitance of a pixel cell, an operation method of a flat panel display includes supplying a data pulse to first data lines of the panel, supplying a data pulse to second data lines of the panel and supplying a scan pulse to scan lines by being synchronized with the data pulse supplied to the first and the second data lines. In addition, an operation method of a flat panel display includes operating a left region of a panel after dividing the panel into two regions and operating a right region of the panel.