| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 345067000 | More than two electrodes per element | 15 |
| 20080224957 | PLASMA DISPLAY PANEL - A plasma display panel (PDP) capable of reducing or suppressing resonance between adjacent capacitively coupled sustain electrodes, which can generate audible noise from a panel, and accordingly reducing the noise of the panel. The sustain electrodes comprise a plurality of X electrodes and a plurality of Y electrodes, which cross a substantially perpendicular plurality of address electrodes. According to one embodiment, the sustain electrodes are arranged using at least two of four different patterns of four, such as X-Y:X-Y, X-Y:Y-X, Y-X:Y-X, and Y-X:X-Y. According to another embodiment, a pattern of four adjacent electrodes is not repeated more than once. | 09-18-2008 |
| 20080231555 | Plasma display panel - A plasma display panel including: a first substrate and a second substrate facing each other; X electrodes and Y electrodes extending in a first direction between the first substrate and the second substrate; third electrodes extending in a second direction between the first substrate and the second substrate; barrier ribs arranged between the first substrate and the second substrate so as to define a plurality of discharge cells, wherein the barrier ribs comprise horizontal barrier ribs extending in the first direction; a first dielectric layer arranged on the first substrate so as to cover the X electrodes and the Y electrodes; a second dielectric layer arranged on the second substrate so as to cover the third electrodes, wherein each of the X electrodes and Y electrodes comprises a transparent electrode and a bus electrode, and a distance We between bus electrodes of adjacent discharge cells satisfies an about 4×Wb≦We≦ about 6×Wb relationship where Wb is the thickness of each horizontal barrier rib. | 09-25-2008 |
| 20080252564 | Plasma display panel and method of driving the same - Provided is a method of driving a plasma display panel (PDP) that comprises X electrodes, Y electrodes, and address electrodes, wherein a frame, which is a display cycle, comprises a plurality of subfields for time-divisional gray scale display. Each of the subfields includes a reset period, an address period, and a sustain period. The reset period is one of a main reset period during which both a rising pulse and a falling pulse are applied to the Y electrodes and an auxiliary reset period during which one of the rising pulse and the falling pulse is applied to the Y electrodes, and the main reset period comprises a first pulse time during which a pulse rising to a level of a first voltage and then falling to a level of a second voltage is applied to the Y electrodes and a second pulse time during which a pulse rising to a level of a third voltage and then falling to a level of a fourth voltage is applied to the Y electrodes. | 10-16-2008 |
| 20080259002 | PLASMA DISPLAY APPARATUS - The present invention relates to a plasma display apparatus. The plasma display apparatus includes an upper substrate; first and second electrodes formed on the upper substrate; a lower substrate disposed opposite to the upper substrate; and a third electrode formed on the lower substrate. At least one of the first and second electrodes is formed as one layer, and includes first and second electrode lines formed in a direction intersecting the third electrode and a connecting electrode that connects the first and second electrode lines. The distance between the first and second electrode lines has a value of 2 or more in one discharge cell. Accordingly, manufacturing cost of a plasma display panel can be saved by removing a transparent electrode made from ITO. Further, a discharge firing voltage can be reduced and the luminance of a display image can also be improved by variably adjusting the distance between two electrode lines constituting a scan or sustain electrode. | 10-23-2008 |
| 20080278418 | PLASMA DISPLAY APPARATUS AND A METHOD OF DRIVING THE PLASMA DISPLAY APPARATUS - A method of driving a PDP apparatus to sufficiently suppress the background light emission and improve the dark room contrast, in which first electrodes and second electrodes are arranged adjacently, a first display line is formed between one side of the second electrode and the first electrode adjacent thereto, a second display line is formed between the other side of the second electrode and the first electrode adjacent thereto, and the interlaced display that displays the first display line and the second display line alternately in different fields is performed, has been disclosed, wherein the reset voltage that directly relates to the intensity of the background light emission is varied according to the number of times of sustain discharges, the display conditions, and so on, in each subfield and the reset discharge is caused to occur with the minimum voltage in each subfield. | 11-13-2008 |
| 20080291134 | Plasma display - The present invention relates to a plasma display and a driving method thereof. In the plasma display, a plasma display panel (PDP) has different electrode arrangement configurations of discharge cells neighboring in a column direction and a closed barrier rib configuration. When the PDP has an alignment error in first and second electrodes, different rising slopes or falling slopes of a sustain pulse are applied to the first and second electrodes during a sustain period of a subfield. | 11-27-2008 |
| 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 |
| 20090085840 | PLASMA DISPLAY AND DRIVING METHOD THEREOF - A method for driving a plasma display including scan electrodes, address electrodes, sustain electrodes, and a plurality of discharge cells with one frame divided into a plurality of subfields. In the method, a voltage of the scan electrode is gradually increased from a second voltage to a third voltage while applying a first voltage to the address electrode during a first reset period of a first subfield among the plurality of subfields, and the voltage of the scan electrode is gradually increased from a fifth voltage to a sixth voltage that is lower than the third voltage while applying a fourth voltage that is higher than the first voltage to the address electrode during a second reset period of a second subfield among the plurality of subfields. | 04-02-2009 |
| 20090109139 | PLASMA DISPLAY PANEL DEVICE - A PDP device can realize both the reduction in power consumption in the sustain period and the appropriate erase operation. The PDP device has a plurality of display electrodes on a substrate surface, wherein the display electrodes include mutually adjacent X electrodes and Y electrodes. And the PDP has X, Y drive circuits that drive the X, Y electrodes. Further, in a sustain period, the X, Y electrode drive circuits apply sustain pulses having a rising dull waveform during the rise and a falling dull waveform during the fall between the X, Y electrodes a plurality of times, and after the plurality of sustain pulses have been applied, apply narrow erase pulses having a rise characteristic sharper than the rising dull waveform during the rise and also having a pulse width shorter than that of the sustain pulses between the X, Y electrodes. | 04-30-2009 |
| 20090109140 | PLASMA DISPLAY PANEL - The present invention relates to a plasma display panel. The plasma display panel includes a front substrate on which a first electrode and a second electrode are positioned parallel to each other, a first black layer at a position corresponding to the first electrode, a second black layer at a position corresponding to the second electrode, a rear substrate positioned opposite the front substrate, and a barrier rib positioned between the front substrate and the rear substrate to partition a discharge cell. An interval between the first black layer and the second black layer ranges from 0.7 to times a shortest interval between at least one of the first and second black layers and the barrier rib. | 04-30-2009 |
| 20090115701 | METHOD OF DRIVING PLASMA DISPLAY PANEL AND PLASMA DISPLAY APPARATUS EMPLOYING THE SAME - The present invention relates to a method of driving a plasma display panel and a plasma display apparatus employing the same. A plurality of scan electrodes formed in a plasma display panel may be divided into first and second groups, each of the first and second groups may be divided into a plurality of subgroups and then sequentially supplied with scan signals on a subgroup basis. Scan bias voltages supplied to two or more subgroups belonging to the first group in a first period of the address period may be different from one another, scan bias voltages supplied to two or more subgroups belonging to the second group in a second period of the address period may be different from one another, and scan bias voltages supplied to any one subgroup belonging to the first group and any one subgroup belonging to the second group in a third period of the address period may be different from each other. Accordingly, the panel can be driven at high speed and an address erroneous discharge due to the loss of wall charges can be reduced. Consequently, the image quality of a display image can be improved. | 05-07-2009 |
| 20090231238 | Plasma display device - A plasma display device includes a plasma display module having a plasma display panel provided with a plurality of parallel electrodes, a circuit board for applying a voltage to the electrodes, and a chassis conductor configured to hold the plasma display panel and to which a ground of a circuit board is coupled, and further includes a cylindrical conductor portion configured to surround the plasma display module. | 09-17-2009 |
| 20090273545 | PLASMA DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A plasma display apparatus and a method of driving the same are disclosed. The plasma display apparatus includes a plasma display panel in which a plurality of scan electrodes, sustain electrodes, and address electrodes are formed on substrates to form a discharge cell and electrode driving parts for driving the scan electrodes, the sustain electrodes, and the address electrodes. The plurality of scan electrodes are divided into a plurality of scan electrode groups and the driving parts are controlled such that a voltage different from a scan bias voltage is applied for a predetermined time in the address period of one or more scan electrode groups among the plurality of scan electrode groups. | 11-05-2009 |
| 20120001836 | PLASMA DISPLAY DEVICE - An electrode drive circuit of a plasma display device includes a scan driver provided with plural drivers having first and second switching elements and first and second diodes, and a positive reset pulse generating circuit by which a first superposed voltage obtained by applying a predetermined first voltage to a low potential side terminal of the second switching element and superposing the first voltage and a voltage between a high potential side terminal of the first switching element and the low potential side terminal of the second switching element is generated to the high potential side terminal of the first switching element. The first superposed voltage is applied to the electrodes via the first switching element. | 01-05-2012 |
