Patent application number | Description | Published |
20080266211 | Plasma Display Panel, Plasma Display Device, and Method for Driving Plasma Display Panel - A priming discharge is generated simultaneously in two adjacent priming discharge cells, and an address operation is performed sequentially in the main discharge cells in the odd rows of the four rows of main discharge cells which are adjacent to the priming discharge cells. After completion of the address operation in all main discharge cells in the odd rows, the priming discharge cells are once initialized. A priming discharge is generated again in the priming discharge cells, and an address operation is performed sequentially this time in the main discharge cells in the even rows which are adjacent to the priming discharge cells. This provides a PDP and a plasma display device which can stably generate an address discharge without narrowing the driving voltage margin of an address operation and reduce the number of driving circuits required for driving the priming electrodes, and also provides a method for driving the PDP. | 10-30-2008 |
20090201319 | PLASMA DISPLAY PANEL DRIVE METHOD AND PLASMA DISPLAY PANEL DEVICE - The aim is to improve the display capability of a PDP at lower gray scale levels by driving the PDP in a manner to adjust the luminance of Gray Scale 1 to an appropriate level. According to the drive method, one TV field is divided into a plurality of subfields SF | 08-13-2009 |
20100225671 | METHOD FOR DRIVING PLASMA DISPLAY PANEL AND PLASMA DISPLAY DEVICE - The present invention aims to improve a low gradation expression ability by reducing the brightness of the 1 | 09-09-2010 |
20100259534 | PLASMA DISPLAY DEVICE - A plasma display device has a plasma display panel and a panel driving circuit for driving the panel. The panel driving circuit drives the panel in a manner that a period for causing an address discharge in all discharge cells is disposed in the address period, or before the address period of a subfield, and the subfield (first SF) is interposed at predetermined time intervals. | 10-14-2010 |
20100271409 | IMAGE DISPLAY APPARATUS, COLOR SIGNAL CORRECTION APPARATUS, AND COLOR SIGNAL CORRECTION METHOD - Upon displaying an image using the subfield driving method, a luminance discrepancy or a chromaticity discrepancy is reduced while effects of horizontal crosstalk are reduced. | 10-28-2010 |
20100321371 | METHOD OF DRIVING PLASMA DISPLAY PANEL, AND PLASMA DISPLAY APPARATUS - A method of driving a plasma display panel of the present invention, is a driving method of a display panel including plural display electrode pairs ( | 12-23-2010 |
20110037792 | METHOD FOR DRIVING PLASMA DISPLAY PANEL AND PLASMA DISPLAY DEVICE - An object is to provide a method for driving a PDP, which may be a super high-definition panel, and a PDP device capable of assuring the sufficient number of subfields to maintain the image quality and displaying images with the sufficient luminance. | 02-17-2011 |
20110057911 | PLASMA DISPLAY PANEL DRIVING METHOD AND PLASMA DISPLAY APPARATUS - A plurality of display electrode pairs are divided into two display electrode pair groups I and II. One field is divided into M (M is an integer of 2 or more) sub-fields SFL (L=1 to M) each including a wall voltage adjusting period, an address period, and a sustain period. Based on a sustain period T1 of a K-th sub-field SFK and a wall voltage adjusting period T2 positioned between the sustain period T1 and the address period of a (K+1)-th sub-field, if T1>T2, a first driving method in which the sustain period T1 and the wall voltage adjusting period T2 are set for each of the display electrode pair groups I and II is used in the sub-field SFK, and if T103-10-2011 | |
20110084957 | PLASMA DISPLAY PANEL DRIVE CIRCUIT AND PLASMA DISPLAY DEVICE - A plasma display panel drive circuit assures a sufficient number of subfields in a high resolution panel, is low cost, and is resistant to producing brightness differences. The plasma display panel drive circuit segments plural sustain electrodes into a first sustain electrode group and second sustain electrode group, applies sustain pulses in the sustain period, and includes the following devices: a sustain pulse generating circuit that generates sustain pulses; a specific voltage application circuit that applies a specific voltage to a first electrode path to the first sustain electrode group, and a second electrode path to the second sustain electrode group, at respective specific times; and a separation switch circuit that is connected between the sustain pulse generating circuit and the first electrode path and second electrode path, and electrically isolates the sustain pulse generating circuit from either the first electrode path or the second electrode path. | 04-14-2011 |
20110090211 | CIRCUIT FOR DRIVING PLASMA DISPLAY PANEL AND PLASMA DISPLAY DEVICE - A simple, low cost drive circuit secures a sufficient number of subfields in a high resolution panel. The plasma display panel drive circuit groups plural sustain electrodes into first and second sustain electrode groups, and applies sustain pulses in the sustain period. The first and second sustain pulse generating circuits generate and apply sustain pulses to first and second electrode paths. First and second specific voltage application circuits apply a first specific voltage to the first and second electrode paths. The voltage selection circuit selects one of a plurality of voltages including at least a second specific voltage and a third specific voltage, and generates a selected voltage. The first and second sustain pulse generating circuits generate the sustain pulses based on the second specific voltage when the selected voltage is the second specific voltage, and when the selected voltage is the third specific voltage, apply the third specific voltage to the first and second electrode paths. | 04-21-2011 |
20110134105 | METHOD OF DRIVING PLASMA DISPLAY PANEL, AND PLASMA DISPLAY APPARATUS - In a driving method of a plasma display panel of the present invention, plural display electrode pairs are divided into plural display electrode pair groups and one field is divided into plural sub-fields. The length of the sustain period is compared to the length of the erase period. If the sustain period is longer than the erase period, sustain discharge and erase discharge are performed for each of the display electrode pair groups, while if the sustain period is shorter than the erase period, sustain discharge and erase discharge of one display electrode pair group are synchronized with those of another display electrode pair group. For a sub-field with a largest luminance weight or a sub-field with a highest lighting ratio, sustain discharge and erase discharge of one display electrode pair group are synchronized with those of another display electrode pair group without fail. | 06-09-2011 |
20110141072 | PLASMA DISPLAY PANEL DRIVING METHOD AND PLASMA DISPLAY DEVICE - The present invention provides a plasma display panel driving method and a plasma display device, each of which is capable of securing image quality and realizing an improvement of a drive margin and a reduction in power consumption even in the case of an ultra high definition panel. The present invention divides a plurality of display electrode pairs into a plurality of display electrode pair groups. For each of the display electrode pair groups, the present invention divides one field period into a plurality of sub-fields, each including an address period and a sustain period, such that the address periods with respect to the display electrode pair groups do not overlap one another, the address period being a period in which an address process of causing address discharge in the discharge cell which should emit light is carried out, the sustain period being a period in which first and second sustain pulses are applied to a scan electrode and a sustain electrode. The present invention provides the sub-field in which the cycle of each of the first and second sustain pulses is longer than 5.5 μs within such a range that a time of the sustain period does not exceed Tw×(N−1)/N, where N denotes the number of display electrode pair groups, and Tw denotes a time necessary for carrying out the address process with respect to the discharge cells corresponding to all the display electrode pairs. | 06-16-2011 |
20140266990 | HEAD-MOUNTED DISPLAY DEVICE - A head-mounted display device having: an image display element displaying a two-dimensional image; an eyepiece magnifying and projecting the image displayed by the image display element; and a holder holding the image display element and the eyepiece, so that the viewer's eyeball sees, through the eyepiece, a magnified virtual image of the image displayed by the image display element. The image display element is a two-dimensional display device having the shape of a matrix, composed of a central portion which is flat, and a left side portion and a right side portion each of which has a sheet-like shape whose cross-section along a horizontal plane is curved toward the eyepiece away from the extension line of the central portion. In the image display element, pixels in the left and right side portions and are greater in size than pixels in the central portion. | 09-18-2014 |