Patent application number | Description | Published |
20080218439 | PLASMA DISPLAY PANEL AND IMAGING DEVICE USING THE SAME - A plasma display panel and an imaging device realize a high luminous efficiency, a long lifetime and stable driving. The plasma display panel uses a discharge-gas mixture containing at least Xe, Ne and He. A Xe proportion of the discharge-gas mixture is in a range of from 2% to 20%, a He proportion of the discharge-gas mixture is in a range of from 15% to 50%, the He proportion is greater than the Xe proportion, and a total pressure of the discharge-gas mixture is in a range of from 400 Torr to 550 Torr. A width of a voltage pulse to be applied to an electrode serving as an address electrode is 2 μs or less. | 09-11-2008 |
20080278417 | PLASMA DISPLAY APPARATUS - 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. | 11-13-2008 |
20090079672 | PLASMA DISPLAY PANEL AND IMAGING DEVICE USING THE SAME - There is provided a PDP, in which the deterioration in the address discharge timelag with age is suppressed, which is bright, has guaranteed life, can stably be driven, is of low power consumption, high definition, and high image quality. There is provided a pair of sustaining discharge electrodes on the front substrate extending in a row direction for forming a display line, a floating electrode not connected to an external electrode is arranged on the same substrate as the pair of sustaining discharge electrode so as not to pass through a center line extending in a column direction and dividing the discharge cell into two equal parts, thereby intensifying the local potential of an area of the MgO surface not influenced by the sputtering by the sustaining discharge in the address discharge, promoting the electron emission from this area, and suppressing the deterioration of the address discharge timelag. | 03-26-2009 |
20090153050 | PLASMA DISPLAY PANEL - A high-quality long-life plasma display panel is provided by enabling compatibility between priming-electron emission characteristics, and other characteristics such as sputtering resistance, secondary electron emission characteristics, and wall charge retention. The plasma display panel is structured to include a front substrate, transparent electrodes and bus electrodes provided on the inner side of the front substrate, a dielectric layer covering these electrodes, a first protective layer covering the dielectric layer, and a second protective layer disposed on the side closer to the discharge space than the first protective layer. The first protective layer is doped with Sc to generate a predetermined excitation light by incidence of ultraviolet light. The second protective layer is doped with Si to emit electrons to the discharge space by the excitation light. With this structure, it is possible to realize a plasma display device in which the discharge delay is small, thereby the fluctuation less occurs. | 06-18-2009 |
20090184895 | PLASMA DISPLAY PANEL AND DISPLAY DEVICE HAVING THE SAME - A high-definition, high-quality, and high-contrast PDP that features high brightness, guaranteed long life, and stable driving, is provided by improving the time-dependent degradation of address discharge delay. The PDP includes: a front substrate having bus electrodes, and sustain discharge electrodes extending in a lateral direction of the bus electrodes to form display lines; a back substrate having address electrodes facing the sustain discharge electrodes in the lateral direction of the bus electrodes; and discharge cells formed between the substrates. Each of the discharge cells includes a sustain discharge cell and a priming discharge cell, in which a protruding electrode is formed to extend in a direction opposite to the discharge gap from the bus electrode, and a predetermined space is provided between the two cells to supply priming. The shape and size of the space are optimized so that the sustain discharge does not spread to the address discharge cell through the space. | 07-23-2009 |
20090230836 | DISPLAY DEVICE AND PLASMA DISPLAY PANEL - Provided is a display device such as a plasma display device including a front plate and a rear plate arranged opposing to each other to form a discharge space, where a discharge gas filled inside the discharge space, and at least a pair of electrodes for performing a display discharge and a phosphor layer for emitting visible light by an ultraviolet ray emission by the discharge of the discharge gas are provided. Inside the discharge space, a material whose main composition is alumina oxychloride of a group IIa metal and/or a group IIb metal is at least partly contained. Accordingly, a sustain discharge voltage can be reduced. | 09-17-2009 |
20090284521 | PLASMA DISPLAY DEVICE - A plasma display device of high luminous efficiency is provided. In a plasma display device for performing driving including at least an address period and a sustain-discharge period for emission display, the sustain-discharge period includes a pulse application period and an open period, a voltage of an electrode to which a relatively positive voltage is applied in a sustain-discharge electrode pair in a pulse application period immediately before the open period is set as Vsp, and the voltage of the other electrode is set as Vsn, Vsp-Vsn has a significantly negative value in the open period, and light is emitted by a discharge in the open period. | 11-19-2009 |
20100090582 | PLASMA DISPLAY PANEL AND PLASMA DISPLAY APPARATUS USING THE SAME - A high-luminance plasma display panel has at least has a plurality of discharge cells including a phosphor film emitting visible rays by excitation caused by ultraviolet light generated by the discharge of a discharge gas. The phosphor film has at least two layers of a phosphor layer and a reflecting layer, and the phosphor layer is arranged closer to the discharge space side than the reflecting layer. A film thickness Wt of the phosphor film is 40 μm or less, and a film thickness Wp of the phosphor layer, a particle diameter dp of a phosphor that is at least a part of components of the phosphor layer, a film thickness Wr of the reflecting layer, and a particle diameter dr of a reflecting material that is at least a part of components of the reflecting layer satisfy 2dp≦Wp≦5dp and 2dr≦Wr≦Wt−Wp. | 04-15-2010 |
20100096975 | PLASMA DISPLAY PANEL - In order to reduce the discharge delay time and increase the image quality in a display device such as a PDP using ultraviolet light emission produced by discharge, there is provided a display device including: a front panel and a rear panel disposed opposite to each other with discharge spaces formed therebetween, and a discharge gas being injected into the discharge spaces; at least a pair of electrodes for performing a display discharge; and phosphor layers emitting visible light by using ultraviolet light emission produced by discharge of the discharge gas. At least one of the compounds represented by the composition formulas Cs | 04-22-2010 |
20110030899 | PLASMA PROCESSING APPARATUS USING TRANSMISSION ELECTRODE - At least a part of a discharging electromagnetic wave is introduced into a processing chamber via a transmission electrode which has characteristics to behave as a dielectric (electric insulator) for the discharging electromagnetic wave, and to behave as a material with electric conductivity for RF bias electromagnetic wave of electromagnetic wave of ion plasma oscillation. | 02-10-2011 |
20110062866 | PLASMA DISPLAY PANEL - A protective layer has, on its back side, an electron emissive layer formed of magnesium oxide crystals. Based on a front view of discharge cells C, there are defined intersection regions (first regions) where display electrode pairs (each including a sustain electrode X and a scan electrode Y) and address electrodes Z intersect and a remaining region (a second region) E | 03-17-2011 |
20110253313 | PLASMA PROCESSING APPARATUS USING TRANSMISSION ELECTRODE - The present invention provides a plasma processing apparatus in which a plasma distribution, a plasma potential, an etching characteristic or a surface processing characteristic varies in time and spatially, and controllability and reliability are high. In the plasma processing apparatus, at least part of a discharge forming electromagnetic wave is introduced into a processing chamber through a transmission electrode. The transmission electrode is provided with a transmission electrode layer as at least part of constituent elements therefor. Slender-shaped slot opening areas are densely formed in the transmission electrode layer. The transmission electrode behaves like a material having electrical conductivity for an RF bias electromagnetic wave or ion plasma vibrations, thereby implementing high stability and high reliability of plasma characteristics and plasma processing characteristics. | 10-20-2011 |
20110253672 | PLASMA PROCESSING APPARATUS AND PLASMA PROCESSING METHOD - The present invention is intended to improve the uniformity in a distribution function of incident ion energy inside a wafer surface, and realize uniform plasma processing (etching or the like) inside the wafer surface. In a plasma processing apparatus, a bias application portion of a placement electrode on which a wafer is placed is divided into an inner electrode and an outer electrode at positions near the center of the wafer and the edge thereof. Each of a first bias power and a second bias power to be used to accelerate ions incident on the wafer is bifurcated, and the resultant bias powers are fed to the inner electrode and outer electrode using a power distributor by adjusting the power ratio. | 10-20-2011 |
20120263628 | Plasma Sterilization Apparatus - In order to provide a plasma sterilization apparatus with high plasma generation efficiency, the apparatus includes first and second electrodes ( | 10-18-2012 |