Abstract: There is provided a drive circuit of a display device using a capacitive load which includes a clamp circuit connected to a power source potential and clamping a potential of the capacitive load to the power source potential such that an electric power is supplied to the capacitive load in a temporally dispersed manner. For example, the clamp circuit includes a plurality of switches parallelly connected between the capacitive load and the power source potential, the plurality of switches being turned on at different times.

Abstract: A PDP apparatus has a plurality of address driving modules (ADMs) connecting a PDP, a chassis, PDP address electrodes with an address driving circuit of the chassis side. The ADM has a flexible substrate on which wiring and a driver IC are mounted and an address substrate formed by a metal plate for holding/fixing the flexible substrate. With respect to a bracket of an attachment part of the chassis, the two adjacent ADMs are positioned by positioning pins and elongated holes at both ends of the address substrates, and attached and held/fixed by common fastening using a female screw portion, chipped portions, and a screw part. Reduction in the number of required parts and work man-hours, stable holding/fixing, etc. are realized in a driver module of a PDP apparatus.

Abstract: A method for manufacturing a plasma display panel is provided. The method includes making a front substrate and a rear substrate individually and applying a low melting point glass paste including non-porous bead onto a portion of the front substrate or the rear substrate so that the applied low melting point glass paste forms a frame-like shape having a height greater than that of the structural member. The method includes assembling the front substrate and the rear substrate in a face-to-face relation with each other and burning the applied low melting point glass paste while vacuuming a discharge gas space between the front substrate and the rear substrate so as to seal the front substrate and the rear substrate.

Abstract: A plasma display apparatus includes a display panel in which display cells are constituted at least by a set of electrodes including first electrodes extending in a first direction, second electrodes extending in the first direction, and third electrodes extending in a second direction substantially perpendicular to the first direction, a first drive circuit configured to drive the first electrodes, a second drive circuit configured to drive the second electrodes, a third drive circuit configured to drive the third electrodes in conjunction with successive scanning of the first electrodes, and a power-supply circuit configured to generate a DC voltage based on an AC voltage and to supply the DC voltage to the first drive circuit and the second drive circuit, wherein the power-supply circuit and a given drive circuit that is one of the first drive circuit and the second drive circuit are implemented on a single print circuit board.

Abstract: In a sustain operation in an ALIS PDP device, a combination in which a basic first waveform and a second waveform in which a discharge peak is separated are mixed is applied. In the combination, the probability that the second waveform occurs successively is sufficiently reduced to less than 20%, and the number of times of sustain discharges of various intensities is made equal in the lines to be driven. By this means, the 2L nonuniformity can be prevented, and the deterioration of Vsmin can be reduced.

Abstract: In a display control apparatus which is supplied with an input synchronizing signal and an input video signal, and which generates display data from the input video signal on the basis of the input synchronizing signal, and supplies the display data to display means, when a change is detected in a cycle of the input synchronizing signal, the display means is supplied with display data of a frame prior to the occurrence of the change in the cycle, throughout a subsequent predetermined number of frame periods.

Abstract: A display panel device includes a front sheet that is glued on a front face of a plasma display panel. The front sheet includes a mesh made of a light shield member that has a blackened front surface and a plane size larger than a screen. A length between diagonal lattice points of the mesh is shorter than a cell pitch that is longer one of the cell pitches in the vertical direction and the horizontal direction of the screen. An arrangement direction of the mesh is inclined with respect to an arrangement direction of the cells in the screen.

Abstract: There is provided a plasma display device including a slope waveform generating circuit which supplies to an electrode a slope waveform of which voltage changes with the lapse of time, the electrode being formed in a capacitive load to serves as a display element in a display panel for displaying images, wherein the slope waveform generating circuit includes: a plurality of power supplies which supply different voltages; and a switching circuit which selects one power supply out of the a plurality of power supplies and supplies a voltage to the electrode, wherein the switching circuit switches the power supply, which supplies a voltage to the electrode, in accordance with a voltage being supplied to the electrode.

Abstract: A problem is to be solved that there is to be provided a plasma display device capable of generating driving signals with less variation in delay time and without carrying out any phase adjustment. There is provided a plasma display device including; a first display electrode; a second display electrode adapted to cause a discharge to occur between the first display electrode and the second display electrode; a first display electrode drive circuit for applying a discharge voltage to the first display electrode; and a second display electrode drive circuit for applying a discharge voltage to the second display electrode. The first display electrode drive circuit has a first output element for supplying a first electric potential to the first display electrode in accordance with a first input signal which is inputted by using a transformer.

Abstract: An optical filter is provided on the output side of light from plural kinds of cells that output light with colors different from one another. In the optical filter, the penetrable rate of at least a portion of the wavelength band of light output from the cell with the color having highest luminescent intensity is set lower than that of the wavelength band of other kinds of cells. Consequently, the reflectance rate of outer light incident to a display can be reduced. Particularly, in a room environment using artificial lighting, the reflectance rate of outer light can be reduced in the wavelength band of light with relatively high luminescent intensity. Resultingly, bright room contrast can be improved by suppressing the reflection of outer light. Since the penetrable rate of the color with the highest luminescent intensity is reduced, reduction in brightness of the display can be kept to a minimum.

Abstract: A driving method for a plasma display apparatus having address electrodes, scan electrodes and common electrodes and displaying one field of image by using subfields is provided. The driving method includes one specific subfield is arranged to be turned ON early in the one field and always turned ON at luminance level higher than input luminance level “0”, and the specific subfield has a least luminance weight and does not have resetting.

Abstract: A display panel device includes a front sheet that is glued on a front face of a plasma display panel. The front sheet includes a mesh made of a light shield member that has a blackened front surface and a plane size larger than a screen. A length between diagonal lattice points of the mesh is shorter than a cell pitch that is longer one of the cell pitches in the vertical direction and the horizontal direction of the screen. An arrangement direction of the mesh is inclined with respect to an arrangement direction of the cells in the screen.

Abstract: A plasma display panel includes a pair of substrates forming a discharge space between the substrates, and lateral barrier ribs extending in a row direction and longitudinal barrier ribs extending in a column direction that divide the discharge space into cells. Each lateral barrier rib is divided into two portions in the column direction such that a vent passage is formed in the divided portion. In the plasma display panel, raised portions, which are lower than the lateral barrier ribs and connect the lateral barrier ribs divided into the two portions with each other, are formed in the vent passage.

Abstract: A plasma display panel includes a plurality of first bus electrodes and a plurality of second bus electrodes disposed so as to be adjacent on at least one side, a plurality of first discharge electrodes and a plurality of second discharge electrodes that are transparent and extend in a comb-tooth shape in a direction perpendicular to the bus electrodes, a plurality of third electrodes extending in parallel in a vertical direction, and a plurality of horizontal barrier ribs extending in parallel to the third electrodes. Display cells are formed in portions where the first and second bus electrodes face each other and which are defined by the barrier ribs in a horizontal direction. The first discharge electrodes and the second discharge electrodes are alternately disposed for every two cells in the horizontal direction so as to protrude from the first and second bus electrodes, respectively.

Abstract: A capacitive-load driving circuit has a configuration in which a driving power supply source is connected to an output terminal via a driving device. The capacitive-load driving circuit has a power distributing circuit inserted between the driving power supply source and the driving device. Therefore, temperature rise (power consumption) in the capacitive-load driving circuit can be distributed.

Abstract: In conventional plasma display devices, reset by obtuse waves has been performed since discharge intensity becomes higher and background light emission is increased when reset by rectangular waves is performed. However, further improvement of the contrast to improve the image quality has been demanded. The present invention provides a driving method of a plasma display device using obtuse-wave reset in which sustain time of an achieved potential of the obtuse-wave reset is controlled in accordance with a display ratio of a video signal.

Abstract: A plasma display panel is provided in which discharge connection in the column direction is prevented without increasing the number of man-hours in a formation process of a partition and without deteriorating ventilation for an exhaust process. A pattern in a plan view of a partition is made a mesh pattern in which vertical patterns are included at inter-row positions in each column. Each of first vertical walls is positioned at a boundary between columns, each of second vertical walls is arranged at a position away from a boundary between columns for each boundary between rows and each of horizontal walls is positioned at a boundary between rows. In the partition, a height of portions where the first vertical wall crosses the horizontal wall and a height of portions where the second vertical wall crosses the horizontal wall are smaller than a height of the other portions of the partition.

Abstract: A load drive circuit, successfully suppressed in unnecessary electromagnetic wave generation through suppressing transition time in the drive voltage waveform even under a reduced effective load, and a display device using this circuit are provided, wherein the circuit comprises a drive circuit inversively amplifying a signal, used for driving a load, input through an input terminal, and output from an output terminal; a first current source connected to the input terminal of the drive circuit and being capable of controlling current output; and a first switch circuit connected between the input terminal of the drive circuit and a first reference potential point.

Abstract: There is provided a plasma display device including: a nonlinear conversion circuit which nonlinearly converts a first image signal to a second image signal and expresses the second image signal by a real part and an error part to avoid use of a specific subfield lighting pattern; an error diffusion circuit which, when the error part of the second image signal is not zero, spatially or temporally diffuses the error part; and a subfield pattern conversion circuit which, when a lighting pattern of subfields is selected based on the error-diffused second image signal, selects another subfield lighting pattern without using the specific subfield lighting pattern.

Abstract: A partition is formed by the process including a step for providing a sheet-like partition material that covers a display area and outside thereof on the surface of the substrate, a step for providing a mask for patterning that covers the display area and the outside thereof, so that a pattern of the portion arranged outside of the display area of the mask is a grid-like pattern, a step for patterning the partition material covered partially with the mask by a sandblasting process, and a step for baking the partition material after the patterning.