Patent application number | Description | Published |
20100085278 | PLASMA DISPLAY DEVICE - In a plasma display panel, protective layer of front plate has base protective layer and particle layer. The base protective layer is formed of a thin film containing magnesium oxide. The particle layer is formed by sticking, to base protective layer, agglomerated particles in which a plurality of single-crystal particles of magnesium oxide are agglomerated. A panel driving circuit drives the panel in a manner that subfields are temporally disposed so that the luminance weight is monotonically decreased from the subfield in which an all-cell initializing operation is performed to the subfield immediately preceding the subfield in which the next all-cell initializing operation is performed. | 04-08-2010 |
20100109984 | PLASMA DISPLAY DEVICE - Protective layer of front plate of the plasma display panel is formed of base protective layer and particle layer. Base protective layer is a thin film of metal oxide containing at least one of magnesium oxide, strontium oxide, calcium oxide, and barium oxide. Particle layer is formed in a manner that single-crystal particles of magnesium oxide having a peak of emission intensity at 200-300 nm two times or higher than another peak of emission intensity at 300-550 nm in the emission spectrum in cathode luminescence emission are stuck on base protective layer. The panel driving circuit drives the panel with a subfield structure in which the subfields are temporally disposed so that magnitude of luminance weight has monotonous decrease from a subfield where the all-cell initializing operation is performed to a subfield where the next all-cell initializing operation is performed. | 05-06-2010 |
20100118004 | PLASMA DISPLAY DEVICE - A protective layer of a plasma display panel has a base protective layer formed of a thin film of a metal oxide, and a particle layer. The particle layer is formed by sticking, to the base protective layer, single-crystal particles of magnesium oxide such that the emission intensity of a peak at 200 nm to 300 nm is at least twice the emission intensity of a peak at 300 nm to 550 nm in an emission spectrum of cathode luminescence light emission. A panel driving circuit drives the panel in a manner that a second subfield group having a plurality of subfields is temporally disposed after a first subfield group having a plurality of subfields to form one field period. Each subfield of the first subfield group has initializing period (Ti), address period (Tw) for forming wall charge to cause a sustain discharge, and sustain period (Ts). Each subfield of the second subfield group has address period (Tw) for erasing wall charge necessary for causing a sustain discharge, and sustain period (Ts). | 05-13-2010 |
20100118015 | PLASMA DISPLAY DEVICE - Protective layer of a plasma display panel has base protective layer and particle layer. Base protective layer is formed of a thin film of metal oxide containing at least one of magnesium oxide, strontium oxide, calcium oxide, and barium oxide. Particle layer is formed by sticking, to base protective layer, single crystal particles of magnesium oxide where the peak at 200 to 300 nm is two or more times that at 300 to 550 nm in a cathode luminescence emission spectrum. The panel driving circuit causes initializing discharge for producing wall charge in the first subfield, of a plurality of subfields, causes address discharge for erasing wall charge in address periods of the plurality of subfields, and drives the panel. | 05-13-2010 |
20100134453 | PLASMA DISPLAY DEVICE - Protective layer ( | 06-03-2010 |
20100134455 | PLASMA DISPLAY DEVICE - In a plasma display panel, protective layer of front plate has base protective layer and particle layer. The base protective layer is formed of a thin film of a metal oxide containing at least one of magnesium oxide, strontium oxide, calcium oxide, and barium oxide. The particle layer is formed by sticking, to base protective layer, single-crystal particles of magnesium that have an NaCl crystal structure surrounded by specified two type orientation faces of a (100) face and a (111) face, or by specified three type orientation faces of a (100) face, a (110) face, and a (111) face. A panel driving circuit drives the panel in a manner that an initializing discharge for forming wall charge is caused in the first subfield of a plurality of subfields, and an address discharge for erasing the wall charge is caused in address periods of the plurality of subfields. | 06-03-2010 |
20100134466 | PLASMA DISPLAY DEVICE - Protective layer of front plate of the plasma display panel is formed of base protective layer and particle layer. Base protective layer is a thin film containing metal oxide. Particle layer is formed in a manner that aggregated particles of a plurality of magnesium-oxide single-crystal particles are stuck on base protective layer. The panel driving circuit drives the panel in a manner that an initializing discharge for forming wall charge is generated in a first subfield of the plurality of subfields, and an address discharge for erasing wall charge is generated in an address period of the plurality of subfields. | 06-03-2010 |
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 |
20100214329 | PLASMA DISPLAY DEVICE - The protective layer of the plasma display device is formed of a base protective layer and a particle layer. The base protective layer is a thin film of magnesium oxide containing at least one of magnesium oxide, strontium oxide, calcium oxide, and barium oxide. The particle layer is formed in a manner that magnesium-oxide single-crystal particles, which have a structure surrounded by the specified two-type orientation face formed of (100) and (111) faces or the specified three-type orientation face formed of (100), (110), and (111) faces, are stuck to the base protective layer. The panel driving circuit drives the panel in a manner that one field period is formed of a first subfield group having a plurality of subfields and a second subfield group having a plurality of subfields temporally disposed after the first subfield group. Each subfield of the first subfield group has initializing period Ti, address period Tw for forming wall charge to generate a sustain discharge, and sustain period Ts. On the other hand, each subfield of the second subfield group has address period Tw for erasing wall discharge necessary for generating a sustain discharge and sustain period Ts. | 08-26-2010 |
20100253655 | PLASMA DISPLAY DEVICE - A protective layer of a plasma display panel has a base protective layer formed of a thin film containing metal oxide, and a particle layer formed by sticking, to the base protective layer, agglomerated particles where single crystal particles of magnesium oxide are agglomerated. A panel driving circuit drives the panel by forming one field period by temporally arranging a second subfield group after a first subfield group. The first subfield group has subfields having initializing period Ti for producing wall charge for causing an address discharge, address period Tw for producing wall charge for causing a sustain discharge, and sustain period Ts for causing a sustain discharge to emit light in the discharge cells. The second subfield group has subfields having address period Tw for erasing wall charge for causing a sustain discharge and sustain period Ts for causing a sustain discharge to emit light in the discharge cells. | 10-07-2010 |
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 |
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 |
20140084177 | RADIATION DETECTOR - The radiation detector includes: a housing defining an enclosed space filled with a radiation detection gas; first and second electrodes opposing each other across the enclosed space; insulating materials covering surfaces of the first and second electrodes facing the enclosed space; and a voltage source for applying a voltage to the first and second electrodes, whereby a radiation sensor is formed. The radiation sensor is configured so that: in a radiation detection period, a predetermined voltage is applied between the first and second electrodes, and an electric charge is accumulated on the insulating materials by ions and/or electrons generated by ionization of the gas by incident radiation; and in a radiation measurement time, an electric discharge is caused by applying a reverse bias voltage from that applied to the first and second electrodes in the radiation detection period, and a firing voltage is measured. | 03-27-2014 |