2111results about "Sustain/scan electrodes" patented technology

A low softening point glass composition, which is substantially free from lead, bismuth and antimony and comprises oxides of vanadium, phosphorous, tellurium and iron, a softening point of the composition being 380° C. or lower.

A blue-emitting phosphor is optimized by controlling mole fractions typically of Mg and Si in Sr3-eMgbSi2cO8d:Eue or by further including an optimal amount of at least one additional component such as Ba or Ca. The resulting phosphor exhibits a higher brightness and a higher color purity upon excitation by ultraviolet light emitted as a result of discharge of xenon gas. The optimized phosphor is incorporated into light emitting devices such as lamps and PDPs, and further into display devices.

There is provided a photo-curable, electrically conductive composition which is capable of forming a lower layer (black layer) electrode circuit satisfying both the sufficient conductivity and blackness after calcination in the formation of an electrode on a front substrate of a plasma display panel (PDP). The composition comprises, in the first fundamental mode thereof, (A) electrically conductive black fine particles having a specific surface area of more than 20 m2 / g,(B) anorganic binder, (C) a photopolymerizable monomer, and (D) a photopolymerization initiator, and in the second mode further comprises (E) inorganic fine particles besides the above components. The lower layer (black layer) electrode circuit of bus electrodes (4a, 4b) of the PDP is formed by applying such a photo-curable, electrically conductive composition on transparent electrodes (3a, 3b) of a front glass substrate (1), exposing the applied layer to light according to a predetermined pattern, and subjecting the layer to development and calcination.

A glass composition substantially free from lead and bismuth and containing vanadium oxide and phosphor oxide as main ingredients, wherein the sintered glass of the glass composition exhibits 109 Ωcm or more at 25 ° C.

A gas discharge panel includes a first substrate and a second substrate. A plurality of display electrode pairs which are each made up of a sustain electrode and a scan electrode are formed on the first substrate, and the first substrate and the second substrate are set facing each other with a plurality of barrier ribs in between so as to form a plurality of cells. In this gas discharge panel, at least one of the sustain electrode and the scan electrode includes: a plurality of line parts; and a discharge developing part which makes a gap between adjacent line parts smaller in areas corresponding to channels between adjacent barrier ribs than in areas corresponding to the barrier ribs.

An electrode on a substrate of a plasma display panel has a relatively narrow bus line conductor at an intersection with a pad, and a line width of the pad being wider than a line width of the bus line conductor and substantially narrower than a line width of a wider section of the pad, which avoids a break in the electrode when the electrode is fired at an elevated temperature.

A PDP driving apparatus includes a sustain discharge unit including a first switch and a second switch connected between a first voltage and second voltage and having a contact connected to one terminal of a panel capacitor, and a third switch and a fourth switch connected between the voltages and having a contact connected to other terminal of the panel capacitor, for maintaining either terminal voltage at the first voltage or the second voltage; and a charge / discharge unit including a first inductor and a second inductor connected to the terminals of the panel capacitor, for boosting a current to a level to store energy in the first inductor and the second inductor while either terminal voltage of the panel capacitor is maintained at the sustain discharge voltage, and inverting the polarity of either terminal voltage using the stored energy.

A plasma display panel includes a first substrate, and a second substrate facing the first substrate. The first substrate includes a transparent substrate, a scanning electrode and a common electrode both formed on the transparent substrate, and a dielectric layer covering the transparent substrate, the scanning electrode and the common electrode therewith. The second substrate includes an electrically insulating substrate, data electrodes formed on the electrically insulating substrate, partition walls formed on the electrically insulating substrate, and a phosphor layer covering the electrically insulating substrate and the data electrodes therewith between adjacent partition walls. The phosphor layer includes a blue-phosphor layer composed of phosphor which emits a blue light. The blue-phosphor layer is composed of a mixture of two or more phosphors each of which emits a blue light and has an initial brightness and variation of brightness with the lapse of time both different from one another.

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.

A gas discharge tube has a phosphor layer formed and a discharge gas enclosed within an elongated tube which is to serve as the gas discharge tube. The gas discharge tube includes a light-emitting section and a cleaning section for cleaning the discharge gas. The cleaning section is connected to the light-emitting section.

A plasma display panel capable of being fast driven with low voltage by reducing a distance between an address electrode and a Y electrode. The plasma display panel includes a pair of substrates, discharge electrodes, and an address electrode. The substrates are arranged at a predetermined interval to face each other and form a plurality of discharge spaces between facing surfaces of the substrates. The discharge electrodes are arranged at predetermined intervals between the substrates. The address electrode is arranged a predetermined distance apart from the discharge electrodes in a direction where the substrates are arranged, and defines each of the discharge spaces in cooperation with the discharge electrodes.

The invention has for its object the provision of an oxynitride fluorescent material has higher emission luminance than conventional rare earth element-activated sialon fluorescent materials. To this end, an oxynitride fluorescent material is designed in such a way as to contain as the primary constituent a JEM phase represented by a general formula MA1(Si6−zAlz)N10−zOz wherein M is one or two or more elements selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. For instance, this fluorescent material has a fluorescent spectrum maximum emission wavelength of 420 nm to 500 nm inclusive and an excitation spectrum maximum emission excitation wavelength of 250 nm to 400 nm inclusive.

A phosphor layer is formed efficiently in a gas discharge tube by drawing a mother material to fabricate a supporting member which is insertable in a small glass tube used for a gas discharge tube, forming a phosphor layer on the supporting member, and inserting and placing the supporting member in the small glass tube.

A method of forming a phosphor layer of a gas discharge tube provided with the phosphor layer on an internal surface of an elongated tubular vessel forming a discharge space. The method includes the steps of introducing a slurry of phosphor powder and a binding resin dispersed in a medium into the tubular vessel, holding the tubular vessel sideways to deposit the phosphor powder and the binding resin in the tubular vessel, and removing the medium from the tubular vessel, thereby forming a phosphor layer on one side of the internal surface of the tubular vessel.

The PDP disclosed herein has a plurality of thin wire electrodes extending in the row direction, which are laid out in such a way as to widen the interval at a fixed ratio (2 times) from the discharge gap section toward the non-discharge gap section as well as to shorten the lengths of those row direction thin wire electrodes in steps with a fixed difference (approximately 20 mumxleft / right) from the cell's vertical center axis toward the partition walls. They are connected by thin wire electrodes that extend in the column direction to form antenna-shaped plane electrodes and the thin wire electrodes that extend in the column direction from the center of the antenna-shaped plane electrodes and the bus electrodes that extend in the row direction are connected to form a sustaining electrode pair (scan electrode and common electrode).

A discharge inert film (22) is made of an aggregate of fine particles not substantially containing any inorganic binder. Each of sustain discharge electrodes (XB, YB) includes a plurality of discharge gap adjoining portions (a), a bus portion (b) and a plurality of bridge-building portions (c). The bus portion (b) adjoins the electrode pair gap portion (NG), extending along a second direction (D2). Each of bridge-building portions (c) extends towards a discharge gap portion (DG). The bridge-building portions (c) are connected to the discharge gap adjoining portions (a), respectively, and these adjoining portions (a) adjoin the discharge gap portion (DG) and are arranged therealong. The film (22) is so disposed as not to cover the discharge gap adjoining portions (a). When a surface discharge is generated between the sustain discharge electrodes (X, Y) during a reset period, the potential difference between the electrodes (X, Y) is gradually increased.

The present invention aims at providing a chemically stabilized inorganic phosphor which emits orange light or red light at wavelengths longer than the conventional rare-earth activated sialon phosphor and which has a higher luminance.The solving means resides in an inorganic phosphor design represented by a composition formula MaAbDcEdNeOfXg and containing: an M element (M is one kind or two or more kinds of element(s) selected from Mn, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu); a divalent A element (A is one kind or two or more kinds of element(s) selected from Mg, Ca, Sr, and Ba); a trivalent E element (E is one kind or two or more kinds of element(s) selected from B, Al, Ga, and In); a tetravalent D element (D is one kind or two or more kinds of element(s) selected from Si, Ge, and Sn); nitrogen; oxygen (including an oxygen absent condition); and another X element (including an X absent condition); wherein the parameters a, b, c, d, e, f, and g included in the equation are adjusted to and set at particular regions to provide an inorganic phosphor which emits orange light at wavelengths of 570 nm or longer or red light at wavelengths of 600 nm or longer with excellent color rendering property.

The present invention provides a plasma display panel and a method for manufacturing barrier ribs for the plasma display panel. The plasma display panel includes first and second substrates that have a predetermined gap therebetween. A plurality of parallel address electrodes are formed on the first substrate. A dielectric layer is formed on the first substrate covering the address electrodes and barrier ribs are formed on the dielectric layer in a lattice pattern. Discharge sustain electrodes are formed on the second substrate which is perpendicular to the address electrodes, and a transparent dielectric layer and a protection layer are formed on the second substrate covering the discharge sustain electrodes. The barrier ribs are, for example, first and second barrier rib members which are formed respectively in the same direction as the address electrodes and the discharge sustain electrodes. Either or both the first barrier rib members or the second barrier rib members are made of a non-transparent material.

A plasma display panel. A first substrate and a second substrate are provided opposing one another with a predetermined gap therebetween. Address electrodes are formed on the second substrate. Barrier ribs are mounted between the first substrate and the second substrate defining a plurality of discharge cells. Phosphor layers are formed within the discharge cells. Discharge sustain electrodes are formed on the first substrate. The discharge sustain electrodes include bus electrodes that extend such that a pair of the bus electrodes is provided for each of the discharge cells, and protrusion electrodes extending from each of the bus electrodes such that a pair of opposing protrusion electrodes is formed within an area corresponding to each discharge cell. A distal end of each protrusion electrode includes an indentation such that a gap is formed between the pair of opposing protrusion electrodes, and an aperture is formed in each protrusion electrode.

“Discharge delay” and “dependence of discharge delay on temperatures” are solved by improving a protective layer, thus a PDP can be driven at a low voltage. Furthermore, the PDP can display excellent images by suppressing “dependence of discharge delay on space charges.” Liquid-phase magnesium alkoxide (Mg (OR)2) or acetylacetone magnesium ate whose purity is 99.95% or more is prepared, and is hydrolyzed by adding a small amount of acids to the solution. Thus, a gel of magnesium hydroxide that is a magnesium oxide precursor is formed. Burning the gel in atmosphere at 700° C. or more produces powder containing MgO particles 16a-16d having the NaCl crystal structure with (100) and (111) crystal faces or with (100), (110) and (111) crystal faces. By pasting the powder on a dielectric layer 7 or a surface layer 8, the MgO powder 16 is formed so as to serve as the protective layer.

Disclosed is a plasma display panel with improved discharge characteristics. The plasma display panel comprises an upper panel and a lower panel integrally joined to the upper panel through barrier ribs wherein the upper panel includes a dielectric layer, a first protective film formed on one surface of the dielectric layer and composed of columnar magnesium oxide crystal particles, and a second protective film formed on the first protective film and composed of hexahedral magnesium oxide crystal particles.

A plasma display panel includes first and second substrates spaced apart from each other at a distance while proceeding substantially parallel to each other. The first and the second substrates have a display area and a non-display area. A plurality of address electrodes are formed on the first substrate, and covered by a dielectric layer. Main barrier ribs are arranged between the substrates to form discharge cells. Phosphor layer is formed with the discharge cells. A plurality of discharge sustain electrodes are formed on the surface of the second substrate facing the first substrate, and covered by a dielectric layer. Reinforcing barrier ribs are arranged at the non-display area while surrounding the display area, and connected to the main barrier ribs with an outer structure curved toward the outside of the substrates.

A method for producing a substrate assembly for a plasma display panel includes the steps of applying a suspension to a dielectric layer covering display electrodes formed on a substrate, the suspension containing a dispersion medium and a large number of magnesium oxide crystals dispersed in the dispersion medium, and thereafter evaporating the dispersion medium to form a layer of the magnesium oxide crystals on the dielectric layer, wherein the dielectric layer has a rugged surface structure having uniformly-dispersed projections and depressions, the rugged surface structure being capable of trapping the magnesium oxide crystals.

Phosphor and a plasma display device are provided whose deterioration in brightness of phosphors and a degree of change in chromaticity are alleviated and whose discharge characteristics are improved and that has excellent initial characteristics. Phosphor of the present invention is an alkaline-earth metal aluminate phosphor containing an element M (where M denotes at least one type of element selected from the group consisting of Nb, Ta, W and B). In this phosphor, a concentration of M in the vicinity of a surface of the phosphor particles is higher than the average concentration of M in the phosphor particles as a whole. A plasma display device according to the present invention includes a plasma display panel in which a plurality of discharge cells in one color or in a plurality of colors are arranged and phosphor layers are arranged so as to correspond to the discharge cells in colors and in which light is emitted by exciting the phosphor layers with ultraviolet rays. The phosphor layers include blue phosphor, where the afore-mentioned phosphor is used as the blue phosphor.

A plasma display panel includes a plurality of row electrodes defining rows of a screen. The row electrodes are arranged at intervals so that adjacent row electrodes are capable of serving as an electrode pair for generating a surface discharge. Each of the row electrodes includes a belt-shaped base extending along the full length of the screen in a direction of the rows and protrusions extending from the base toward an adjacent row electrode in every column.

The present invention relates to plasma display panel and manufacturing method thereof to simplify the manufacturing steps and reduce cost of production. In the present invention, a black layer formed between a transparent electrode and a bus electrode is formed together with a black matrix at the same time. In this case, the black layer is formed together with the black matrix in one. Cheap nonconductive oxide is used as a black powder of a black layer. Specifically, in case the black layer and the black matrix are formed in one, the bus electrode is shifted to a non-discharge area to improve the brightness of the plasma display panel.

A plasma display panel. A first substrate and a second substrate are provided opposing one another with a predetermined gap therebetween. Address electrodes are formed on the second substrate. Barrier ribs are mounted between the first substrate and the second substrate, the barrier ribs defining a plurality of discharge cells and a plurality of non-discharge regions. Phosphor layers are formed within each of the discharge cells. Discharge sustain electrodes are formed on the first substrate. The non-discharge regions are formed in areas encompassed by discharge cell abscissas that pass through centers of adjacent discharge cells and discharge cell ordinates that pass through centers of adjacent discharge cells, the non-discharge regions having a width that is at least as large as a width of an end of barrier ribs. Also, a transverse barrier rib is formed extending between each pair of adjacent rows of discharge cells.

A device manufacturing apparatus includes a discharge head discharging a droplet containing a functional material, a stage supporting a substrate on which the droplet is discharged, and which is capable of moving relative to the discharge head, a carrier carrying the substrate, a detector detecting a discharge condition of the droplet which is discharged from a discharge nozzle formed in the discharge head, and a controller executing a detection operation by the discharge device during a carrying operation of the substrate.