HITACHI PLASMA DISPLAY LIMITED Patent applications |
Patent application number | Title | Published |
20110267378 | Method for driving plasma display panel - 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. | 11-03-2011 |
20110062865 | PLASMA DISPLAY PANEL - A plasma display panel (PDP) includes a first plate, and a second plate disposed to face the first plate via a discharge space and providing barrier ribs. A plurality of first electrodes and a plurality of second electrodes extending in a first direction, and a dielectric layer covering the first electrodes and the second electrodes are provided on the first plate. A plurality of address electrodes extending in a second direction, and a protective layer covering the dielectric layer and the address electrodes and exposing at least a part of the protective layer to the discharge space are provided on the dielectric layer. The address electrodes are made up by including a conductive layer formed by either one of aluminum and an alloy containing aluminum and copper and by not including a layer of a simple substance of copper. | 03-17-2011 |
20100244685 | PLASMA DISPLAY PANEL WITH IMPROVED EXHAUST CONDUCTANCE - A plasma display panel having a partition wall structure with improved exhaust conductance and which can forestall drops in emission efficiency is provided. A plasma display panel having a discharge gas sealed in a space between a pair of opposing substrates, a plurality of display electrodes extending in a transversal direction, address electrodes A extending in a longitudinal direction and intersecting the display electrodes | 09-30-2010 |
20090201279 | PLASMA DISPLAY DEVICE - Provided is a plasma display device including a plasma display panel having a plurality of first and second electrodes extending in the horizontal direction and a plurality of third electrodes extending in the vertical direction, and first electrode driving circuit substrates to supply voltage to the first electrodes, in which center lines in the vertical direction of the first electrode driving circuit substrates are below a center line in the vertical direction of the plasma display panel. | 08-13-2009 |
20090174329 | PLASMA DISPLAY PANEL - A plasma display panel, in which discharge gas is filled in a space between a pair of substrates facing each other, has a plurality of display electrodes which extend in the horizontal direction and address electrodes which extend in the vertical direction and cross with the display electrodes, formed to the pair of substrates; and lattice-shaped ribs having vertical ribs and horizontal ribs that demarcate unit emission areas and formed on one of the substrates, wherein the rib has a pattern which partially becomes narrower from a first width to a second width, and returns to a first width in plan view so that the height of the second width portion is lower than the height of the first width portion. Thereby a plasma display panel having a rib structure with improved exhaust conductance can be provided. | 07-09-2009 |
20090160338 | PLASMA DISPLAY PANEL AND FRONT PANEL THEREOF - A plasma display panel includes a magnesium oxide film ( | 06-25-2009 |