Abstract: A method for driving a plasma display panel which is capable of improving contrast is provided. A plasma display apparatus which is capable of improving dark contrast and suppressing a degradation in image quality immediately after power-on is also provided. In the PDP, the peak potentials of drive pulses to be applied in order to drive display cells which have a phosphor layer containing a phosphor material and a secondary electron emitting material, are set as follows. The peak potential of a reset pulse, to be applied to each of the row electrodes in the first subfield within each unit display period, is set to be lower than the peak potential of a sustain pulse, to be applied to each of the row electrodes in every subfield to produce sustain discharge only in display cells that are in the lighting mode.

Abstract: A plasma display panel driving method in which a reset step and an address step are sequentially executed in the first subfield and second subfield of each field. A microemission step is executed in the first subfield for generating a microemission discharge between ones of the row electrodes and the column electrodes in display cells in the ON mode by applying a voltage for using the ones of the row electrodes as the anode and the column electrodes as the cathode, between the electrodes immediately after the address step. Moreover, in the microemission step, a potential lower than the voltage generated when applying a sustain pulse is respectively applied to the ones and the others of the row electrodes while applying a voltage as described above between the ones of the row electrodes and the column electrodes.

Abstract: An apparatus for driving a display panel can execute quality image display. To allow discharge cells operating as pixels of the display panel to repeatedly perform sustain discharge, a fall period of a last sustain pulse of sustain pulses repeatedly applied to row electrodes includes a first voltage drop period in which a voltage value gently drops, a voltage constant period which follows the first voltage drop period and in which the voltage value remains constant for a predetermined period, and a second voltage drop period which follows the voltage constant period and in which the voltage value drops more gently than in the first voltage drop period.

Abstract: A plasma display panel and a drive method therefor, which can enhance a representation capability when displaying a dark image. The plasma display panel includes fluorophor layers containing magnesium oxide. The drive method includes a reset step to initialize all the pixel cells into states of one of a light-up mode and a light-off mode, and an address step in which the pixel cells are caused to perform address discharges selectively in accordance with pixel data, which are successively executed in each of a head subfield and a second subfield within a one-field display period. In reset step, a voltage that sets row electrodes on one side, in the row electrode pairs as an anode and sets the column electrodes set as a cathode is applied between the row electrodes on the one side and the column electrodes.

Abstract: A method for driving a display panel with which the dark contrast can be improved is provided. Each of at least two successive sub-fields including a leading sub-field includes a selective write addressing step for setting the discharge cells to a lighted discharge cell mode by selectively causing a writing discharge in the discharge cells in accordance with the video signal. The sub-fields following at least two sub-fields include a selective erasure addressing step for setting the discharge cells to an unlighted discharge cell mode by selectively causing an erasing discharge in the discharge cells in accordance with the video signal and an emission sustain step for repeatedly causing a sustain discharge corresponding to a weighting of that sub-field only in the discharge cells that are in the lighted discharge cell mode.

Abstract: In order to provide a method for driving a display panel capable of improving durability of a driving device for driving a display panel, when a scan pulse is applied in superposition with a base pulse to one of row electrodes of one row electrode pair among row electrode pairs while the base pulse is applied to one of the row electrodes of all the row electrode pairs in the display panel and a pixel data pulse corresponding to an image signal is applied to the row electrode at the same timing as that of the scan pulse to set discharge cells to either one of a light-on mode and a light-off mode, a change ratio of a voltage value in a fall period in the base pulse is smaller than a change ratio of a voltage value in a fall period in the scan pulse.

Abstract: A plasma display device in which a sustain pulse having a leading period is applied between row electrodes forming each row electrode pair by a number of times previously determined for each subfield, in a sustain period, and a length of the leading period of the sustain pulse is set in accordance with an accumulated light emission time or an accumulated use time of the plasma display panel.

Abstract: A plasma display device in which at least one of a first sustain pulse having a first leading period and a second sustain pulse having a second leading period shorter than the first leading period is applied between row electrodes forming each row electrode pair by a number of times previously determined for each subfield, in a sustain period, and an application ratio between the first sustain pulse and the second sustain pulse in the sustain period of each subfield is changed in accordance with a luminance level of a video signal.

Abstract: The present invention is a display device and display panel drive method that allow a more rapid select operation to be stably implemented by increasing the discharge probability of selective discharge. The display device comprises an address part that sequentially applies a positive scan pulse to a first row electrode of each of the display panel row electrode pairs in the address cycle while sequentially applying a pixel data pulse corresponding to the pixel data at the same timing as the scan pulse to each of the display panel column electrodes one display line at a time so that the column electrode side constitutes a cathode, such that an address discharge is selectively produced in the second discharge cell; and a sustain part that applies a sustain pulse to each of the row electrodes constituting the row electrode pairs in the sustain cycle, and the sustain part applies the ultimate sustain pulse of the sustain pulses applied in the address cycle to the first row electrode with a negative polarity.

Abstract: A display panel includes a plurality of unit light emission areas (light emission elements) arranged in a matrix. Each unit light emission area is defined by a first discharge cell and a second discharge cell. The second discharge cell has a light-absorbing layer. When the display panel is driven to express an image having a plurality of gradation levels, address discharge is selectively caused in the second discharge cells in accordance with an input image signal. Light leaks to the first discharge cell from the second discharge cell upon the address discharge. This light is used to express the gradation of low luminance. Since luminance difference between gradation levels of a low luminance image is reduced, it is possible to display a high quality, low luminance image.

Abstract: A display panel device includes a plurality of row electrode pairs and a plurality of column electrodes. Each row electrode pair includes a first and second electrodes. Unit light emission areas are formed at intersections of the row electrode pairs and the column electrodes. Each unit light emission area includes a first discharge cell and a second discharge cell. The second discharge cell includes a light-absorbing layer and secondary electron emission material layer. When driving the display panel device, sustain discharge responsible for light emission governing the display image is induced in the first discharge cells, whereas reset discharge and address discharge accompanied by light emission not contributing to the display image is induced in the second discharge cells.

Abstract: A display and a driving method of a display panel capable of improving a dark contrast.

Abstract: A plasma display panel capable of improving dark contrast. A unit light emission region is comprised of a display discharge cell in which a discharge is produced between portions of row electrodes X, Y of each row electrode pair (X, Y) opposing each other, and a reset and address discharge cell arranged in parallel with the display discharge cell, in which a discharge is produced between portions of the row electrode Y and a row electrode X of another adjacent row electrode pair (X, Y). The display discharge cell and reset and address discharge cell are communicated with each other. A light absorbing layer is formed in a portion of the reset and address discharge cell opposing the display surface. According to another aspect, the unit light emission region in the display panel comprises a first discharge cell and a second discharge cell comprising a light absorbing layer.

Abstract: A stock rubber is provided with chopped aramid fibers and chopped polyester fibers blended in the rubber component, which is EPDM. The chopped polyester fibers are longer than the chopped aramid fibers. A transmission V-belt is obtained and molded from the stock rubber. When molding, the chopped aramid fibers and the chopped polyester fibers are oriented in a width direction of a belt body of the V-belt.

Abstract: A plasma display apparatus includes a plasma display panel. Pulse voltage values and/or pulse widths of a variety of drive pulses that are applied to the plasma display panel are adjusted in accordance with the accumulated usage time of the plasma display panel.

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

Abstract: A method of driving a plasma display panel minimizes occurrence of complementary color ghost images (afterimage). Reset pulses are applied to a plurality of row electrode pairs to trigger a reset discharge in all discharge cells. The reset pulses include a first reset pulse that is applied to one of the row electrodes of each row electrode pair and a second reset pulse that is applied to the other row electrode at the same time that the first reset pulse is applied and has a polarity opposite that of the first reset pulse. The first and second reset pulses have different voltage levels.

Abstract: A plasma display device having a plasma display panel in which, each display cell contains a magnesium oxide layer including magnesium oxide crystals that are excited by an electron beam to emit cathode luminescence light having a peak in a wavelength range of 200 to 300 nm. In an addressing period, a row electrode driving circuit applies a scanning pulse to one row electrodes of row electrode pairs in turn, while a column electrode driving circuit supplies column electrodes with data pulses corresponding to one row electrode which is applied with the scanning pulse.

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 and a method of driving a plasma display panel are provided for improving the contrast without degrading the image quality. Each of display cells formed on the plasma display panel has a magnesium oxide layer containing magnesium oxide crystals. The magnesium oxide crystals are excited by an electron beam irradiated thereto and emit cathode luminescence light having a peak in a wavelength range of 200 to 300 nm. In order to trigger a rest discharge in all the display cells, each row electrode pair of the plasma display panel is applied with a reset pulse which has a particular pulse waveform. The voltage value of this reset pulse slowly changes over time to reach a peak voltage value.