Patent application number | Description | Published |
20090009436 | PLASMA DISPLAY PANEL DEVICE AND DRIVE METHOD THEREOF - Provided are a PDP device and a drive method thereof which restrict the generation of an erroneous discharge in the all-cell reset period and to restrict the appearance of flickers in the areas with low grayscale levels even if some areas have a lower firing voltage than the other areas due to variation of a property in the panel surfaces or due to a long-term driving, or even if the voltage applied to the address electrode is increased with the pursuit of high definition. | 01-08-2009 |
20090015520 | PLASMA DISPLAY PANEL APPARATUS AND METHOD FOR DRIVING THE SAME - The present invention provides a plasma display panel and a method for driving the plasma display panel each of which ensures to suppress problems associated with an erroneous discharge resulting from accidental occurrence of a strong discharge in a reset period as well as with an address discharge delay. The problems are suppressed without applying an auxiliary erase pulse after the reset period ends. As a result, image display is provided with no flickering and good quality. The reset period includes a first step of applying a voltage having an ascending ramp waveform and a second step of applying a voltage having a descending ramp waveform. Between the first and second steps, a potential change waveform having a rise or fall (voltage change pulse) is applied at least to scan electrodes, sustain electrodes, or address electrodes. | 01-15-2009 |
20090102755 | DRIVING METHOD OF PLASMA DISPLAY PANEL - In a driving method of a panel, one field period is formed by arranging a plurality of subfields that have an address period for selectively causing address discharge in a discharge cell, and a sustain period for causing as many sustain discharges as the number corresponding to luminance weight in the discharge cell. One field period is formed by arranging a plurality of subfield groups having a plurality of subfields whose luminance weights monotonically increase. In the discharge cell for causing address discharge in a certain subfield other than the head subfield in each subfield group, address discharge is caused even in the head subfield. | 04-23-2009 |
20090179877 | DRIVING METHOD OF PLASMA DISPLAY PANEL - In a driving method of a panel, one field period is formed by arranging a plurality of subfields that have an initializing period for causing initializing discharge in a discharge cell, an address period for selectively causing address discharge in the discharge cell, and a sustain period for causing as many sustain discharges as the number corresponding to luminance weight in the discharge cell. One field period is formed by arranging a plurality of subfield groups having a plurality of subfields whose luminance weights monotonically increase. A holding period when discharge is not caused is disposed before the head subfield belonging to at least one subfield group of the plurality of subfield groups. In the initializing period of the head subfield belonging to at least one subfield group, an initializing operation of causing initializing discharge is performed in the discharge cell where the sustain discharge has been performed in the sustain period of the immediately preceding subfield. | 07-16-2009 |
20090244053 | Method for driving plasma display panel and plasma display apparatus - An object of the present invention is to provide a method for driving a plasma display panel capable of further reducing an address error to realize satisfactory image quality, and a plasma display apparatus. | 10-01-2009 |
20100013819 | PLASMA DISPLAY PANEL APPARATUS DRIVING METHOD AND PLASMA DISPLAY PANEL APPARATUS - In a former half (T | 01-21-2010 |
20100033454 | METHOD FOR DRIVING PLASMA DISPLAY PANEL, AND PLASMA DISPLAY DEVICE - In the method for driving a plasma display panel and the plasma display device, the scan electrodes of the plasma display panel are divided into two scan electrode groups, the address period of subfields is divided into two address periods corresponding to the two scan electrode groups, and at least in one address period, the scan electrodes belonging to the scan electrode group provided with scan pulses are sequentially provided with scan pulses shifting from second voltage higher than scan pulse voltage to scan pulse voltage and shifting again to second voltage, and the scan electrodes belonging to the scan electrode group not provided with scan pulses are provided with either third voltage higher than scan pulse voltage or fourth voltage higher than second voltage and third voltage, and with third voltage at least while scan pulse voltage is applied to adjacent scan electrodes. | 02-11-2010 |
20100039415 | PLASMA DISPLAY DEVICE AND METHOD FOR DRIVING PLASMA DISPLAY PANEL - A plasma display panel; a scan electrode drive circuit for generating a gently decreasing downward inclined waveform voltage in an initializing period, a gently increasing first inclined waveform voltage in an initializing period of at least one subfield in one field period, and a second inclined waveform voltage having a steeper gradient than the first inclined waveform voltage and decreasing immediately after the increasing waveform voltage reaches a predetermined potential in the last part of the sustain period; and a panel temperature detecting circuit are provided. The lowest voltage in the downward inclined waveform voltage is switched at a first voltage, a second voltage higher than the first voltage and a third voltage higher than the second voltage to generate a downward inclined waveform voltage. The lowest voltage is switched according to the temperature detected by the panel temperature detecting circuit to generate the downward inclined waveform voltage. | 02-18-2010 |
20100149220 | PLASMA DISPLAY PANEL DRIVE CIRCUIT AND PLASMA DISPLAY DEVICE - The total number of the scan electrodes is divided into a first scan electrode group and a second scan electrode group. The first scan electrode group drive section for driving the first scan electrode group produces a selection potential and a non-selection potential in the scan period, and supplies scan pulses based on the two potentials in the first half of the scan period. The complex switch section supplies the selection potential produced using the first scan electrode group drive section to the second scan electrode group drive section for driving the second scan electrode group in the latter half of the scan period. The second scan electrode group drive section supplies scan pulses based on the input selection potential. | 06-17-2010 |
20100177084 | PLASMA DISPLAY DEVICE - A plasma display device has a crystal particle made of MgO single crystal where the cathode luminescence emission spectrum exhibits a desired characteristic, and displays an image by a driving method in the initializing period. The initializing period has the first half for applying the voltage, which gradually increases from a first voltage and to a second voltage, to a second electrode, and the latter half for applying the voltage, which gradually decreases from a third voltage and to a fourth voltage. | 07-15-2010 |
20110001425 | PLASMA DISPLAY DEVICE - In a plasma display device, a plurality of agglomerated particle groups in which a plurality of crystal particles made of a metal oxide agglomerate are disposed in the periphery of a protective layer thereof. The plasma display device is driven by the following driving method to display images. An initializing period has a first half of the initializing period in which a second electrode is applied with a voltage gradually rising from a first voltage to a second voltage, and a second half of the initializing period in which the second electrode is applied with a voltage gradually falling from a third voltage to a fourth voltage. | 01-06-2011 |