Abstract: Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then treating the particles in an ozone atmosphere after the last step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.

Abstract: A plasma display panel includes a first substrate and a second substrate facing each other to provide a discharge space between the first substrate and the second substrate, a scan electrode and a sustain electrode both provided on the first substrate, a dielectric layer for covering the scan electrode and the sustain electrode, and a protective layer provided on the dielectric layer. The protective layer includes magnesium oxide, magnesium carbide, and silicon. This plasma display panel performs stable discharge characteristics, such as a driving voltage, thereby displaying an image stably.

Abstract: A plasma display device exhibits suppressed luminance degradation of a phosphor, a suppressed change in chromaticity and improved discharge characteristics as a result of suppression of adsorption of water or hydrocarbon-containing gas on a surface of a blue phosphor. A blue phosphor layer used in the plasma display device is formed of a compound expressed by Ba1?XMgAl10O17:EuX or Ba1?x?ySryMgAl10O17:EuX and includes at least one element that is selected from Nb, Ta, Pr, P, As, Sb, Bi and Tm which substitutes for a part of its Al or Mg element.

Abstract: The present invention aims to inhibit water adsorption onto the surface of a blue phosphor(blue fluorescent material), decrease luminance degradation and chromaticity shift of a phosphor, or improve discharge characteristics thereof. Used in a phosphor for a plasma display is a blue phosphor in which trivalent Eu ions substitute for part of divalent Eu ions. This substitution eliminates oxygen vacancy in the vicinity of layers containing Ba atoms (Ba—O layers) in the blue phosphor, and thus inhibits water adsorption onto the surface of the blue phosphor, decreases luminance degradation and chromaticity shift of the phosphor, or improves discharge characteristics thereof.

Abstract: Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then performing oxygen ion implantation treatment for implanting oxygen ions and annealing the particles, after the step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.

Abstract: A plasma display device comprises blue phosphor which restricts adsorption of water and hydrocarbon gases to a surface thereof, reduces degradation of luminance and chromaticity change, and improves discharge characteristic. Among phosphor layers used for a plasma display, a blue phosphor layer comprises one of compounds symbolized by Ba1-xMgAl10O17:Eux and Ba1-x-ySryMgAl10O17:Eux, of which phosphor contains 0.2 to 0.8 in number x of Eu atoms, and the Eu atoms comprises 25% to 85% concentration of bivalent Eu ions, and 15% to 75% concentration of trivalent Eu ions.

Abstract: Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then treating the particles in an oxygen plasma atmosphere after the last step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.

Abstract: A plasma display device includes a blue phosphor composed of a compound represented by Me3MgSi2O8:Eu (where, Me is at least calcium (Ca), strontium (Sr), or barium (Ba)). Concentration of bivalent Eu ions is 45 to 95% and concentration of trivalent Eu ions is 5 to 55%, of the europium (Eu) atoms contained in the blue phosphor layer. The plasma display device has less luminance degradation in a panel manufacturing process, high luminance, and long lifetime.

Abstract: The present invention relates to a plasma display device apt to increase luminance of a phosphor layer and prevent degradation of a discharge characteristic, and to a phosphor used for the device. This plasma display device has a green phosphor having a crystal structure of Zn2SiO4:Mn, and a monovalent oxide is substituted for part of the green phosphor. The monovalent oxide is one or more of lithium oxide (Li2O), sodium oxide (Na2O), potassium oxide (K2O), cesium oxide (Cs2O), rubidium oxide (Rb2O), copper oxide (Cu2O), and silver oxide (Ag2O). This structure allows reduction of oxygen defects occurring in the green phosphor, suppression of the luminance decrease of the green phosphor, and improvement of a discharge characteristic.

Abstract: A method of producing a gas discharge panel includes forming a surrounding unit by positioning a first panel and a second panel together with barrier ribs to partition the space between the panels into cells for light emission when charged with a plasma gas and appropriately addressed. An anti-sealing material inflow rib surrounds the barrier ribs. Sealing material is positioned outside the anti-sealing material inflow rib. The pressure inside the surrounding unit is adjusted to be lower than pressure outside the surrounding unit while applying heat to fuse the sealing material between the first panel and the second panel whereby sealing material is prevented from inflowing into the cells between the barrier ribs during production.

Abstract: A plasma display panel having an excellent image display quality and high reliability is provided by preventing deterioration of a phosphor due to hydrocarbon gas remaining in the plasma display panel. The plasma display panel includes front panel (50) and rear panel (60) disposed opposing each other, and front panel (50) is provided with a plurality of display electrodes composed of a pair of scan electrode (6) and sustain electrode (7), and rear panel (60) has barrier ribs (10) forming discharge cells (11). In the plasma display panel, rear panel (60) includes data electrodes (9) perpendicular to display electrodes composed of a pair of scan electrode (6) and sustain electrode (7) on substrate (2), dielectric layer (13) covering data electrodes (9), reflective layer (20) containing an oxidation catalyst and covering at least a part of dielectric layer (13), and phosphor layer (12) covering reflective layer (20).

Abstract: A manufacturing apparatus for a PDP includes a unit for forming a protective layer protecting a dielectric layer on a first plate, a unit for baking a phosphor layer applied on a second plate, a unit for sealing the first and second plates arranged so that the protective layer faces the phosphor layer, and a unit for baking the first and second plates while exhausting a space between them. The four units are placed in one or more closed chamber. When the apparatus is driven, spaces in and between the closed chambers each contain a gas atmosphere with vapor partial pressure of 10 mPa or lower, or with a pressure of 1 Pa or lower, where the protective layer and the phosphor layer exhibit less water-absorbing property, preventing degradation of the PDP performances. The protective layer does not contact with atmospheric carbonic acid gas, preventing alteration thereof.

Abstract: A plasma display device including a green phosphor of which brightness is hardly deteriorated and a production method therefor are disclosed. The plasma display device comprises a plasma display panel in which a plurality of discharge cells of one color or a plurality of colors are disposed, red phosphor layers 110R, green phosphor layers 110G, and blue phosphor layers 110B are arranged correspondingly to the respective discharge cells, and the red phosphor layers 110R, the green phosphor layers 110G, and the blue phosphor layers 110B are excited by ultraviolet rays to emit light. The green phosphor layers 110G include a green phosphor expressed by (Ma-x-yEuxTby)O.MgO.2SiO2 (here, M is at least one element selected from Ca, Sr, and Ba).

Abstract: A plasma display device provided with a green color phosphor which is charged entirely with a positive potential, adsorbs only limited amounts of water, carbon monoxide, carbon dioxide and hydrocarbon, and not liable to cause chemical reaction thereto. A green color phosphor layer is formed of the green phosphor comprising at least one compound selected from among materials defined by the general formulae of M1-a (Ga1-xAlx)2 O4:Mna (where “M” denotes one of Zn, Mg, Ca and Sr), (Y1-a-yGda) (Ga1-xAlx)3 (BO3)4:Tby, (Y1-a-yGda) (Ga1-xAlx)3 (BO3)4:Cey, Tby, (Y1-a-yGda) BO3:Tby and (Y1-a-yGda)3 (Ga1-xAlx)5 O12:Tby.

Abstract: A blue phosphor composing a blue phosphor player in a plasma display device has a crystal structure of Ba(1-x)EuxMgAl10O17 or Ba(1-x-y)EuxSryMgAl10O17. In this blue phosphor, La substitutes for a proportion of Ba or Sr so as to achieve a high-luminance plasma display device with less luminance deterioration in panel manufacturing processes.

Abstract: Disclosed here is a plasma display unit that employs phosphors having an amount of charge controlled close to zero, by which degradation in luminance, color temperature, and charge characteristics can be minimized. A phosphor bearing positive or negative charge is coated with a compound for controlling the amount of charge of the phosphor through a strong chemical bonding, whereby the amount of charge of a phosphor can be suppressed within ±0.01 ?C/g. Controlling the amount of charge of phosphors close to zero can keep impurity gases away from the phosphor particle when the panel is in operation, suppressing problems critical to driving a plasma display unit, such as luminance degradation of phosphors, improper alignment of color in panel operation, luminance degradation when the panel displays all white.

Abstract: Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing, rinsing, drying and then treating the particles in an ozone atmosphere after the last step of treatment in the reducing atmosphere. This method recovers oxygen vacancy in the host crystal of the phosphor.

Abstract: A method of manufacturing at least two layer electrodes that can be utilized, for example, as bus and data electrodes in a plasma display device, includes depositing each layer in a coating step and subsequently exposing the layers at the same time for development. The layers are subsequently baked at the same time. One layer can be thinner than the other layer during a time period between the developing step and the baking step.

Abstract: The present invention relates to a plasma display device and to a method of producing a phosphor to be used for the device, that prevents the phosphor layer from deteriorating, and improves the luminance, life, and reliability, of a PDP. The plasma display device is equipped with a plasma display panel in which a plurality of discharge cells are arranged, phosphor layers (110R, 110G, 110B) in color corresponding to each discharge cell are disposed, and phosphor layers (110R, 110G, 110B) are excited by ultraviolet light to emit light. Green phosphor layer (110G) has a green phosphor including Zn2SiO4:Mn, the element ratio of zinc (Zn) to silicon (Si) at the proximity of its surface is 2/1, which is the stoichiometric ratio, and the layer is positively charged or zero-charged.

Abstract: The present invention relates to a plasma display device and to a method of producing a phosphor to be used for the device, that prevents the phosphor layer from deteriorating, and improves the luminance, life, and reliability, of the PDP. The plasma display device is equipped with a plasma display panel in which a plurality of discharge cells are arranged, phosphor layers (110R, 110G, 110B) in color corresponding to each discharge cell are allocated, and phosphor layers (110R, 110G, 110B) are excited by ultraviolet light to emit light. Green phosphor layer (110G) has a green phosphor including Zn2SiO4:Mn, the element ratio of zinc (Zn) to silicon (Si) is 2/1 to 2.09/1 at least at the proximity of the surface, and the layer is positively charged or zero-charged.