Abstract: A plasma display device having 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 the surface of the 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 and substitutes for a part of its Al or Mg element.

Abstract: To provide a display panel, such as a PDP, that can reduce noise caused by a collision sound which occurs when a front panel member and a back panel member vibrate while the display panel is being driven. Projections (21) are provided on a surface of a first panel member facing a second panel member. The first panel member and the second panel member are connected to each other by a connecting material in areas (23) where the projections intersect barrier ribs (18). In this way, noise (noise level) caused by a collision sound which occurs when the front panel member and the back panel member vibrate while the display panel is being driven can be reduced.

Abstract: Barrier ribs 18 formed on a back substrate PA2 are brought into contact with a bonding paste layer 40 having an even surface, applying a bonding agent Bd evenly to the tops of the barrier ribs.

Abstract: Barrier ribs 18 formed on a back substrate PA2 are brought into contact with a bonding paste layer 40 having an even surface, applying a bonding agent Bd evenly to the tops of the barrier ribs.

Abstract: To provide a technique for relatively easily preventing yellowing of a PDP that uses silver electrodes, and a PDP utilizing the technique that is capable of displaying images with high luminance and high quality. To form the electrodes, an alloy composed of Ag as a main constituent and a transition metal (at least one selected from Cu, Cr, Co, Ni, Mn, and Fe) is used, or an oxide of such a transition metal is added. Alternatively, an alloy composed of Ag as a main constituent and a metal (at least one selected from Ru, Rh, Ir, Os, and Re) is used, or an oxide of such a metal is added. Alternatively, Ag particles whose surfaces are each coated with a metal (Pd, Cu, Cr, Ni, Ir, or Ru) or a metal oxide (SiO2, Al2O3, NiO, ZrO2, Fe2O3, ZnO, In2O3, CuO, TiO2, or Pr6O11) are used.

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 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 manufacturing method for a gas discharge panel according to the invention can reduce the amount of water and gaseous molecules, which are absorbed into the first and the second substrates, to a minimum by keeping the both substrates under a reduced pressure, and therefore can prevent a degradation of a discharge gas filling the finished panel. As a result, problems in the finished panel such as increase in a discharge starting voltage and generation of an abnormal discharge can be suppressed.

Abstract: Plasma display panels of the prior art are prone to cross talk leading to unstable image.

Abstract: A plasma display device having improved efficiency and increased image quality. This device includes a pair of front and back substrates opposed to each other to form between the substrates a discharge space partitioned by barrier ribs, a plurality of display electrodes each disposed on the front substrate to form a discharge cell between the barrier ribs, a dielectric layer formed above the front substrate to cover the display electrodes, and a phosphor layer which emits light by discharge between the display electrodes. The dielectric layer is constructed of at least two layers of different dielectric constants and is formed with, at its surface closer to the discharge space, a recessed part in each discharge cell. This limits a discharge region, thus realizing highly efficient discharge. The structure having the two layers of different dielectric constants can suppress crosstalk even if this structure has reduced thickness.

Abstract: A manufacturing method for a gas discharge panel according to the invention can reduce the amount of water and gaseous molecules, which are absorbed into the first and the second substrates, to a minimum by keeping the both substrates under a reduced pressure, and therefore can prevent a degradation of a discharge gas filling the finished panel. As a result, problems in the finished panel such as increase in a discharge starting voltage and generation of an abnormal discharge can be suppressed.

Abstract: When a gas discharge panel is driven, a voltage is applied between scan and address electrode groups to perform set-up. The voltage waveform has four intervals. In a first interval, the voltage is raised in a short time (less than 10 &mgr;s) to a first voltage, wherein 100 V≦first voltage<starting voltage. Then, in a second interval, the voltage is raised to a second voltage no less than the starting voltage and with an absolute gradient smaller than that for the voltage rise in the first interval (no more than 9 V/&mgr;s). Next, in a third interval, the voltage is lowered in a short time (no more than 10 &mgr;s) from the second voltage to a third voltage no more than the starting voltage. Following this, in a fourth interval, the voltage is lowered still further (for 100 &mgr;s to 250 &mgr;s) with a gradient smaller than that for the voltage fall in the third interval. The time occupied by the whole voltage waveform should be no more than 360 &mgr;s.

Abstract: The present invention provides a gas discharge panel on which color images are accurately displayed and which is easy to manufacture. The first and the second substrates face each other across an interval, forming a discharge space in between, which is filled with a discharge gas. Pairs of electrodes for sustaining discharge are provided on at least one of the two substrates, and phosphor layers are formed on the first substrate, arranged along the electrode pairs to form a matrix of discharge cells. An image is displayed by selectively illuminating discharge cells. Gap members having a given shape are provided between the first and second substrates at locations corresponding to the boundaries between discharge cells.

Abstract: Disclosed is a plasma display device that provides high luminance and minimal degradation in luminance under panel operations. A blue phosphor in a phosphor layer has a crystal structure of MeMgSi2O6:Eu or Me3MgSi2O8:Eu (where, Me contains at least one of Ca, Sr, and Ba) produced with a precursor that is obtained by any one of methods: an aqueous solution synthesis method, a spray synthesis method, a hydrothermal synthesis method, and a hydrolysis method. The phosphor has an average particle diameter ranging from 0.1 to 3.0 &mgr;m.

Abstract: An object of the present invention is to provide a technique for relatively easily suppressing the yellowing of a Plasma Display Panel in which electrodes comprising silver are disposed on the substrates, and thus render image displays with high luminance and high quality.

Abstract: When a gas discharge panel is driven, a voltage is applied between scan and address electrode groups to perform set-up. The voltage waveform has four intervals. In a first interval, the voltage is raised in a short time (less than 10 &mgr;s) to a first voltage, wherein 100 V≦first voltage<starting voltage. Then, in a second interval, the voltage is raised to a second voltage no less than the starting voltage and with an absolute gradient smaller than that for the voltage rise in the first interval (no more than 9 V/&mgr;s). Next, in a third interval, the voltage is lowered in a short time (no more than 10 &mgr;s) from the second voltage to a third voltage no more than the starting voltage. Following this, in a fourth interval, the voltage is lowered still further (for 100 &mgr;s to 250 &mgr;s) with a gradient smaller than that for the voltage fall in the third interval. The time occupied by the whole voltage waveform should be no more, than 360 &mgr;s.

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. In a phosphor layer used for a plasma display, elimination of oxygen vacancy in the vicinity of a layers containing Ba atoms (Ba—O layers) in a blue phosphor inhibits water adsorption onto the surface of the blue phosphor, decreases luminance degradation and chromaticity shift of a phosphor, or improves discharge characteristics thereof.

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: A manufacturing method for a gas discharge panel according to the invention can reduce the amount of water and gaseous molecules, which are absorbed into the first and the second substrates, to a minimum by keeping the both substrates under a reduced pressure, and therefore can prevent a degradation of a discharge gas filling the finished panel. As a result, problems in the finished panel such as increase in a discharge starting voltage and generation of an abnormal discharge can be suppressed.

Abstract: A phosphor in which water adsorption onto the surface of a blue phosphor is inhibited, luminance degradation and chromaticity shift of the phosphor is decreased, or discharge characteristics thereof is improved, and a plasma display device using the phosphor. In phosphor layers used for a plasma display, selectively coating at least the vicinity of the sides of planes of mirror symmetry containing Ba atoms in a blue phosphor with an oxide or a fluorine-containing oxide inhibits water adsorption onto the surface of the blue phosphor, decreases luminance degradation and chromaticity shift of a phosphor, or improves discharge characteristics thereof.

Abstract: The present invention provides a gas discharge panel on which color images are accurately displayed and which is easy to manufacture. The first and the second substrates face each other across an interval, forming a discharge space in between, which is filled with a discharge gas. Pairs of electrodes for sustaining discharge are provided on at least one of the two substrates, and phosphor layers are formed on the first substrate, arranged along the electrode pairs to form a matrix of discharge cells. An image is displayed by selectively illuminating discharge cells. Gap members having a given shape are provided between the first and second substrates at locations corresponding to the boundaries between discharge cells.