Abstract: A plasma flat lamp includes an upper plate, a lower plate separated a predetermined distance from the upper plate, a wall portion for forming a sealed discharge space between the upper and lower plates, a discharge gas filled in the discharge space, a first pair of electrodes including a first upper plate electrode and a first lower plate electrode arranged to face each other on each of the upper and lower plates with the discharge space interposed therebetween, and a second pair of electrodes including a second upper plate electrode separated a predetermined distance from the first upper plate electrode and a second lower plate electrode separated a predetermined distance from the first lower plate electrode arranged to face each other on each of the upper and lower plates with the discharge space interposed therebetween.

Abstract: A display panel driving device has a simple substrate structure. Amorphous silicon material or organic semiconductor material can be used for the substrate structure. A data code wiring group which is the base of row addresses of the display panel, and an address electrode line wiring group, intersect each other. The two wiring groups sandwich a compound layer of an insulating film and a semiconductor film. By providing disconnected portions at prescribed intersecting points on the address electrode lines, MOS type transistors are formed at the disconnected portions. A logic circuit is configured for row address decoding, in which MOS type transistors are connected in series to a single address electrode line.

Abstract: A gas discharge display device for displaying a color image by means of red, green and blue fluorescent substances, wherein a color to be reproduced by light-emission of the red, green and blue fluorescent substances for displaying a white pixel is set to be different from a white color intended for display, and a filter is disposed on a front side of the red, green and blue fluorescent substances for approximating a display color of the white pixel to the white color intended for display.

Abstract: A flat light source having a front plate and a rear part. The front plate is held at a distance from the rear part by spacers. A gaseous filling which is under a pressure lower than the ambient atmospheric pressure is introduced into the intermediate space between the front plate and rear part, and the front plate is of a glass material. To be able to produce flat light sources of this type which have a low intrinsic weight, according to this invention the front plate and/or the rear part can be configured as an at least partly thermally or chemically tempered glass pane or the front plate and/or the rear part can be configured as a glass pane which at least in areas is coated with ductile polymer material.

Abstract: To provide a method of improving an efficiency for extracting light in a self light-emitting device using an organic EL material. In the self light-emitting device having a structure in which an EL layer (102) is sandwiched between a transparent electrode (103) and a catrode (101), a film thickness of the EL layer (102) and a film thickness of the transparent electrode (102) are equivalent to the film thicknesses in which there is no occurrence of a guided light, and an inert gas is filled in a space between the transparent electrode (103) and a cover material (105).

Abstract: A plasma display panel including a first panel, address electrodes formed on the first panel in a predetermined pattern, a first dielectric layer formed on the first panel and covering the address electrodes, a partition structure having unit partitions discontinuously formed on the first dielectric layer to partition a discharge space, the unit partitions being parallel to the address electrodes and each having auxiliary partitions, red, green and blue phosphor layers coated in the partitioned discharge space, a second panel, which is coupled to the first panel to form the discharge space and which is transparent, a plurality of pairs of sustaining electrodes formed on an inner surface of the second panel and having sets of first and second electrodes at a predetermined angle with respect to the address electrodes, and a second dielectric layer formed on the second panel and covering the sustaining electrodes.

Abstract: A flat lamp for emitting light to a surface area includes a planar cover formed of a transparent material, an anode formed on a rear surface of the planar cover; the rear surface of the planar cover coated with a fluorescent material, a bottom coupled with the rear surface of the cover to form a sealed inner space between the bottom and the rear surface of the cover, a cathode formed on a surface of the bottom internal to the sealed inner space, power supply means electrically connected to the anode and the cathode to supply an external power source, and a plasma-discharging gas injected into the sealed inner space, wherein visible light is produced uniformly over an entire surface of the cover by a reaction between the plasma-discharging gas and an electric field generated between the cathode and the anode.

Abstract: A display tube is provided that can improve light emission efficiency without raising a breakdown voltage. The display tube has a tubular vessel defining a discharge gas space and a pair of display electrodes for generating surface discharge along the circumferential surface of the vessel and opposing discharge traversing the inside of the vessel.

Abstract: A gas discharge tube having a phosphor layer formed within a tubular vessel defining a discharge space. The gas discharge tube includes a supporting member independent of the tubular vessel. The phosphor layer is formed on the supporting member. The supporting member is inserted within the discharge space.

Abstract: The plasma display panel of the present invention has, for achieving high luminance and high reliability, a plurality of discharge spaces formed between a front panel and a back panel that are disposed to oppose each other, and phosphor layers, formed in the discharge spaces, each including phosphor particles of one of blue, red and green colors, wherein the phosphor particles of at least one of blue, red and green colors included in the phosphor layer are flake-like particles.

Abstract: A discharge lamp (1) having a discharge vessel (2) that surrounds a discharge medium that emits electromagnetic radiation in the VUV region during operation of the lamp, has on the inner side of the discharge vessel wall a yellow phosphor layer facing the discharge medium, and a blue phosphor layer lying therebelow.

Abstract: This invention provides a phosphor material capable of absorbing primary light and converting that light into white light having a high color rendering index and illumination devices made from the phosphor material. The white light may have a color rendering index of 100 and may be produced with an efficiency of at least 30 lm/w. In one embodiment, the illumination device includes a secondary light source made from a plurality of Group IV semiconductor nanoparticles.

Abstract: A plasma display panel includes a front glass substrate and a rear glass substrate coupled to each other by a sealing material coated at edges of the front and rear glass substrates, first and second electrodes disposed perpendicular to each other on opposing inner surfaces of the front and rear glass substrates facing each other, a dielectric layer formed on each of the opposing inner surfaces of the front and rear glass substrates to cover the first and second electrodes, partitions formed on an upper surface of the dielectric layer of the rear glass substrate, red, green and blue fluorescent substances coated between the partitions, and a non-light emitting zone filling portion formed by filling a non-light emitting zone existing between the outermost one of the partitions and the sealing material with a material used for one of the partitions.

Abstract: A plasma flat-panel display has a glass substrate having a first pair of parallel sustainer electrodes deposited thereon that includes a first sustainer electrode and a second sustainer electrode. A second pair of parallel sustainer electrodes also is deposited upon the substrate that also includes a first sustainer electrode and a second sustainer electrode. A single common electrode pad is electrically connected to the first sustainer electrode in the first sustainer electrode pair and the first sustainer electrode in the second sustainer electrode pair. The electrode pad is adapted to be connected to a first sustainer voltage waveform supply so that a single supply provides a voltage waveform to both of the first sustainer electrodes.

Abstract: An illuminator capable of cleaning air is disclosed. The illuminator includes a transparent lamp envelope having two ends. A layer of glue body is adhered to inner surface of the lamp envelope. An amount of visible and UV light fluorescent powders are mixed in the layer of glue body. Electrode bases seal both ends of the lamp envelope. A photocatalytic gel film is coated on outer surface of the lamp envelope.

Abstract: To provide a red phosphor red phosphor, for low-voltage electron beams, excellent in the life characteristic of its emission luminance and phosphors, for low-voltage electron beams, emitting light in various colors, the red phosphor containing SrTiO3:Pr, Al as a main component thereof is mixed an inorganic compound comprises sulfides. The inorganic compound is a sulfide or a sulfide-containing phosphor. The inorganic compound is a sulfide of alkaline earth metals.

Abstract: A cold cathode fluorescent lamp (CCFL) comprises an inner fluorescent tube and an outer glass tube which is sheathed on the outside of said inner tube, characterized in that said inner fluorescent tube and said outer glass tube is separately disposed, and there is a space therebetween. Said CCFL further comprises electrodes sealed at the ends of said inner fluorescent tube and said outer glass tube. The CCFL of the present invention has a double-tube construction, as a result, the inner fluorescent tube is not so much affected by a change in the environmental temperature. Further, the inner fluorescent tube and the outer glass tube are separately disposed so that the end of the inner fluorescent tube and the end of the outer glass tube are not integrally joined, so that a rate of the breakage caused by the temperature difference between two ends is dramatically reduced.

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: The present invention relates to novel discharge structures for dielectric barrier discharge lamps, in which discharge electrode sections 5, 6, which are associated with the individual discharges 7, of the respective electrode strips 3, 4 overhang adjacent sections of the electrode strips 3, 4.

Abstract: A plasma display device having improved luminous efficiency. 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 of which is formed of a scan electrode and a sustain electrode and disposed on the substrate of a front panel 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 discharge space is filled with mixed gas as discharge gas, the mixed gas includes Xe having a partial pressure of 5% to 30%, and the dielectric layer is formed with, at its surface closer to the discharge space, a recessed part in each discharge cell.

Abstract: A PDP with improved luminous efficiency is provided which prevents erroneous discharge and emission in adjacent cell spaces (8) and which effectively takes out light produced in the cell spaces (8), and a plasma display device having the PDP is also provided. The space between a front substrate (not shown) and a back substrate (1) is sectioned into a plurality of independent cell spaces (8) by grid-like barrier ribs (2). The cell spaces (8) include discharge cells (9) and non-discharge cells (10). The discharge cells (9) and the non-discharge cells (10) are alternately arranged in horizontal and vertical directions (in alternate checkers). A phosphor (3) is applied in the discharge cells (9) and the phosphor (3) is not applied in the non-discharge cells (10).

Abstract: A mixture of indium metal and titanium metal is fused to the inner surface of a quartz envelope of a mercury vapor discharge lamp.

Abstract: A highly loaded fluorescent lamp (10) (FIG. 1) comprises a hollow, translucent glass body (12) containing a medium capable of generating at least several wavelengths of UV radiation. A plurality of phosphors is disposed on the inside surface of the glass body (12), the plurality of phosphors visible radiation upon exposure to the UV radiation. At least one of the plurality of phosphors is subject to degradation upon lone-term exposure to one of the at least one of several wavelengths of UV radiation. The at least one of the plurality of phosphors subject to degradation is installed (FIG. 12) adjacent the inside surface (14) of the glass body (12) to form a first layer (16); and the remainder of the plurality of phosphors is disposed on the first layer to form a second layer (18), the second layer not being subject to long-term degradation upon exposure to the UV radiation.

Abstract: An inert gas supplementing device for a fluorescent light includes a tube having a closed end and an open end adapted to communicate with a light tube of the fluorescent light. A porous stop is received in the tube in an air-tight manner. An inert gas is received in an area enclosed by the closed end of the tube and the porous stop. The inert gas is able to seep through the porous stop and flow to the fluorescent light to supplement inert gas in the fluorescent light.

Abstract: In the case of a quiet discharge lamp, support elements for supporting a top plate are provided, by comparison with a base plate, in larger numbers and in an alternating arrangement with individual discharge structures.

Abstract: A flat type fluorescent lamp that serves as an illuminating unit and a back light of a large sized liquid crystal panel. The flat type fluorescent lamp includes a first substrate, a second substrate, a first electrode formed on the first substrate, the first electrode including a plurality of protrusions, a phosphor layer formed on the second substrate, a second electrode formed on the phosphor layer, and supports selectively formed between the first substrate and the second substrate. A method for manufacturing a flat type fluorescent lamp comprising the steps of forming a first electrode with protrusions at different intervals on a first substrate, forming a barrier layer over an entire surface of the first substrate including the first electrode, forming a phosphor layer on a second substrate, forming a second electrode on the phosphor layer, selectively forming supports between the first substrate and the second substrate and bonding the first substrate to the second substrate.

Abstract: A method of treating a lamp tube having a first end and a second end comprising introducing a first quantity of a luminescent substance into the first end of the lamp tube and introducing a second quantity of a luminescent substance into the second end of the lamp tube is provided. An illumination source comprising a linear tube having a first end and a second end and an inner surface having a luminescent substance distributed thereon, a longitudinal distribution of the luminescent substance having a minimum at a first point of the inner surface and a luminescent substance density greater than the minimum at each of a second and third point of the inner surface, the first point longitudinally located between the second and third points, is provided.

Abstract: A discharge type display apparatus for displaying images through discharges in a discharge gas enclosed in discharge spaces of the apparatus. The discharge gas is a mixed gas including at least Xe, He and Ne. A mixed ratio of He to Ne in the gas mixture is set approximately for 50% in volume at most.

Abstract: A gas filled channel is formed between a pair of plates. A phosphor is disposed upon a surface of the channel and the channel is filled with a mixture of noble gases. A surface electrode is formed upon the exterior surface of each of the plates. Upon application of an alternating voltage to the pair of surface electrodes, the electrodes are capacitively coupled across the channel and break down the gas contained in the channel. The gasses emit ultraviolet light that causes the phosphor to emit visible light in a characteristic color.

Abstract: Fluorescent material from the class of the silicide nitrides, Sr being used as cation, and the suicide nitrides being doped with trivalent Ce.

Abstract: A display apparatus has a light source unit for generating excitation light, an optical element for modulating the excitation light generated by the light source unit for each of pixels in a two-dimensional plane, and a fluorescent screen for receiving the excitation light modulated by the optical element at a first surface and emitting visible light from a second surface opposite to the first surface. The fluorescent screen includes a layer of phosphor having an absorption coefficient of 1×102 cm−1 or more for the excitation light.

Abstract: A luminous material comprising a rubber, glass or plastics material matrix. A luminescent material is dispersed throughout the matrix, and a colorant dispersed throughout the matrix. The colourant gives the matrix a colour when it is observed under substantially white light, and the colourant allowing substantial transmission of light emitted by the luminous material.

Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at each end of the envelope. The electrodes transfer electric power to generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A phosphor layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The phosphor layer is a mixture of four phosphors, namely, blue-luminescing Blue Halophosphate (BH), red-luminescing Yittrium Oxide (YOX), 2900K-luminescing Calcium Halophosphate, also referred to as Warm White Halophosphate (WW), and green-luminescing Zinc Silicate (ZS).

Abstract: The invention relates to a flat discharge lamp (1), comprising two substantially parallel plates (5, 6) and two support areas serving to support both plates against each other. Each support area consists of a component having a high-viscosity (8) and a low viscosity (7) at assembling temperature. Before assembling the discharge vessel, the support areas are larger than final distance envisaged between both plates. The low viscosity component (7) compensates for possible local deviations in the distance between both plates when the discharge vessel are assembled.

Abstract: A driving circuit for a radio frequency plasma display panel that is capable of effectively making an impedance matching between a radio frequency signal generator and a panel. In the circuit, radio frequency electrode lines are divided into a plurality of groups. A plurality of impedance matchers are independently connected to each group of the radio frequency electrode lines to match impedance of input and output terminals thereof. Accordingly, an impedance difference between the radio frequency electrode lines caused by a length difference of radio frequency supply lines is uniformly compensated, so that a maximum power of radio frequency signal can be applied to each radio frequency electrode line to provide a stable operation of the panel as well as to improve a picture quality.

Abstract: The induction coil core used for an induction coil of a discharge lamp, the discharge lamp including: a bulb containing discharge gas inside; and the induction coil for generating an electromagnetic field with a frequency in a range of 50 kHz to 1 MHz inclusive in the bulb. The core is made of a Mn—Zn polycrystalline ferrite and has a Curie temperature of 270° C. or more.

Abstract: A light emitting element comprises a housing formed by allowing respective first principal surfaces of a rectangular upper housing member made of glass material and having a recess at a central portion on its first principal surface and a rectangular lower housing member made of glass material and having a recess at a central portion on its first principal surface as well to make contact with each other so that they are thermally glued by pressing under a pressure in a predetermined atmosphere; a cavity formed by the respective recesses in the housing and enclosed with at least one of a gas and a light emitting substance; and two lead wires confronted with each other with the cavity interposed therebetween. Accordingly, it is possible to simultaneously realize the integration and the miniaturization of the electronic tube and present the display expression for information transmission at a high brightness.

Abstract: Disclosed is a plasma display apparatus comprising: discharge spaces of red which emit lights of red; discharge spaces of green which emit lights of green; discharge spaces of blue which emit lights of blue; and photo masks which are formed and arranged in order that an aperture of each of the discharge spaces of red may be wider than an aperture of each of the discharge spaces of green in area and an aperture of each of the discharge spaces of blue may be wider than the aperture of each of the discharge spaces of red in area.

Abstract: A flat lamp for emitting light to a surface area includes a planar cover formed of a transparent material, an anode formed on a rear surface of the planar cover; the rear surface of the planar cover coated with a fluorescent material, a bottom coupled with the rear surface of the cover to form a sealed inner space between the bottom and the rear surface of the cover, a cathode formed on a surface of the bottom internal to the sealed inner space, power supply means electrically connected to the anode and the cathode to supply an external power source, and a plasma-discharging gas injected into the sealed inner space, wherein visible light is produced uniformly over an entire surface of the cover by a reaction between the plasma-discharging gas and an electric field generated between the cathode and the anode.

Abstract: A mercury-free metal halide lamp includes an arc tube including a pair of electrodes inside the tube. In the arc tube, a rare gas and a metal halide are contained, and no mercury is contained. The mercury-free metal halide lamp is horizontally operated such that the pair of electrodes is substantially horizontal. The mercury-free metal halide lamp further includes magnetic field applying means for applying a magnetic field including a component substantially perpendicular to a straight line connecting heads of the pair of electrodes in a substantially vertical direction. The density of halogen atoms evaporated during steady-state operation with respect to unit inner volume of the arc tube is 20 &mgr;mol/cc or more.

Abstract: A display device is provided in which a structure of a display tube is simplified so as to achieve a cost reduction and electric connection to a driving circuit is made easy. In the display device including a group of display tubes arranged in parallel for emitting light by gas discharge, plural transparent auxiliary electrodes for display are arranged in the length direction on the outer surface of the tubular vessel that defines a discharge gas space of each of the display tubes, so that the position of a discharge portion is determined. The auxiliary electrodes at the same position in the length direction of the vessel are connected to one another electrically via a band-like power supplying conductor provided on a front substrate, and a back substrate is arranged on which a band-like conductor is provided along each of the display tubes at the back side of the group of display tubes.

Abstract: A plasma display panel (10) includes a front glass substrate (11) having the inner face on which row electrode pairs (X, Y) each opposing each other through a discharge gap (g) and a dielectric layer (13) overlaying the row electrode pairs (X, Y) relative to a discharge space (S). In such plasma display panel (10), a low dielectric constant layer (12) having a relative dielectric constant lower than that of the front glass substrate (11) is provided between the front glass substrate (11) and the row electrode pair (X, Y).

Abstract: A line light source according to the present invention is provided with a plurality of external electrode rare gas fluorescent lamps, and a fixing member fixing the plurality of external electrode rare gas fluorescent lamps such that the center lines thereof are aligned. A contact image sensor of the present invention is provided with the above mentioned line light source.

Abstract: A plasma address display apparatus is composed of a flat panel, a scanning circuit, and a signal circuit. The flat panel has a layered structure wherein a plasma cell having scanning electrodes disposed in rows and a display cell having signal electrodes disposed in columns are placed one on the other. The scanning circuit successively applies a selection pulse to the scanning electrodes to effect scanning of the display cell. The signal circuit supplies image data to the signal electrodes in synchronism with the scanning to write the image data for individual scanning lines. The plasma cell has discharge channels formed in rows such that they are isolated from each other, and a plurality of scanning electrodes are allocated to each of the discharge channels. The scanning circuit successively applies a selection pulse to the scanning electrodes allocated to a discharge channel to cause discharge to occur so that, for example, at least two scanning lines are formed in each one discharge channel.

Abstract: To provide a plasma display panel which improves the write characteristics, luminous luminance, and luminous efficiency and which has a longer life. On a back glass substrate, data electrodes are formed in the substrate column direction. Over the data electrodes, a dielectric layer is formed. On the dielectric layer, scan electrodes are formed in a substrate row direction. Over the scan electrodes, a dielectric layer is formed. On the dielectric layer, partitions are formed in the substrate column direction. On the dielectric layer including the partitions, a protection layer and a fluorescent material layer are formed. On the other hand, on a front glass substrate, common electrodes and bus electrodes electrically connected to the common electrodes are formed in the substrate row direction so as to be opposed to the scan electrodes. Over the common electrodes and the bus electrodes, a dielectric layer and a protection layer are formed.

Abstract: A plasma display panel and a method of driving the same that are capable of improving the discharge efficiency using a direct current type discharge and a radio frequency discharge. In the panel, an address discharge for selecting a display cell is generated by a direct current discharge. A data written into the selected cell is displayed by a radio frequency discharge. The address discharge of direct current type and the radio frequency discharge are allowed to maximize the brightness and the discharge efficiency.

Abstract: A plasma display panel and a method for fabricating the panel. The plasma display panel includes front substrates assembled into a front substrate structure for forming a display part for displaying an image, rear substrates assembled into a rear substrate structure and sealed to the front substrate structure, a first frit glass with which only the outer edge of the front and rear substrate structures are coated, an upper glass on the top of the front substrate structures, a lower glass on the bottom of the rear substrate structures, and a second frit glass with which the edge of the upper and lower glasses are coated, sealing the upper and lower glasses to the front and rear substrate structures.

Abstract: A flat fluorescent lamp has a vessel or housing including first and second substrates opposed to each other at a small distance, and having discharge gas enclosed therein. A first planar electrode layer being transparent is disposed on an inner surface of the first substrate. A second planar electrode layer is disposed on an inner surface of the second substrate, for electrical discharge in cooperation with the first planar electrode layer. First and second dielectric layers are disposed on respectively the inner surfaces of the first and second substrates to cover the first and second planar electrode layers. First and second fluorescent layers are overlaid on respectively inner surfaces of the first and second dielectric layers, for emitting electromagnetic rays upon the electrical discharge between the first and second planar electrode layers. A pattern of plural projections is formed with the inner surface of the second dielectric layer.

Abstract: A low-wattage mercury vapor discharge lamp is provided for use with existing 110V high frequency electronic ballasts. The lamp has a discharge sustaining fill of mercury and an inert gas mixture of krypton and argon that does not require a starting aid. The phosphor layer has a coating weight of 2.0-3.9 mg/cm2.

Abstract: A mercury-free arc tube having a closed glass bulb held between pinch seal portions located at opposite ends of the closed glass bulb and a pair of electrodes provided in the closed glass bulb. The closed glass bulb does not contain mercury (Hg), but contains a main light emitting, a buffer metal halide, and a starting rare gas enclosed in the closed glass bulb. The buffer metal halide includes a halide selected from halides of Ta, Th, Cu, Rb, Nb and Pd. Preferably, at least one of the halides is Ta, Cu, Rb or Nb. The halides serve as a buffer substance and a light emitting substance in substitution for the mercury, and have an ionization potential of about 5 to 8.5 eV and excitation potential of about 4.5 eV or less having emission spectrum in a visible range, and are sealed with the rare gas.