Abstract:
An optical filter comprising a filter layer absorbing visible light, a transparent support, in particular a transparent support comprising a biaxially stretched film, and an antireflection layer, with which an image display such as a plasma display is equipped for preventing reflection and improving color reproduction. An optical filter comprising a transparent support having provided at least on one side of the support a filter layer containing a dye and a polymer binder, wherein an antireflection layer having an antireflection property to visible light is provided on the side opposite to the side on which the filter layer is provided when the filter layer is provided on either one side, and the antireflection layer is provided on either one side when the filter layers are provided on both sides, and the transparent support comprises a biaxially stretched film having a thickness of from 10 to 500 μm.
Abstract:
A front film for a flat display panel includes a sheet body having the form of a sheet to cover a display surface of a flat display panel. The sheet body has a repair wire attached to a part thereof for repairing an electrode of the flat display panel.
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 method for forming a plurality of stripe-like phosphor layers on a surface of a substrate constituting a plasma display panel, the surface having a plurality of parallel ribs disposed thereon and grooves defined between two adjacent ribs, includes the steps of: molding a phosphor paste composed of a phosphor substance and a first synthetic resin into filament-like article; placing the molded filament-like article into each groove; filling the grooves with a solvent optionally containing a second synthetic resin compatible with the first synthetic resin; and conducting a sintering treatment of the substrate to form the phosphor layers in the grooves. An apparatus for forming a plurality of stripe-like phosphor layers on a surface of a substrate having a plurality of parallel ribs disposed thereon and grooves defined between two adjacent ribs, includes: a mounting base for mounting the substrate thereon and a supplier for supplying a filament-like article into the grooves, the filament-like article being made of a phosphor substance and a synthetic resin.
Abstract:
A method of driving a surface-discharge type plasma display panel, comprises: providing an address period for selecting picture elements to be lighted and picture elements not to be lighted in accordance with displaying data; providing a discharge maintaining period for alternatively applying discharge maintaining pulses to first and second maintaining electrodes so as to maintain the lighted picture elements and the not-lighted picture elements; applying two discharge maintaining pulses having different phases to every two second maintaining electrodes between which there is a first maintaining electrode serving as a common electrode for the two second maintaining electrodes.
Abstract:
A plasma display panel is disclosed including a transparent insulating substrate having a plurality of striped grooves, whose portions between the grooves serve as barrier ribs; vertical transparent electrodes each of which is formed in each groove; a fluorescent layer formed on the vertical transparent electrode; horizontal electrodes in strip arrangement having a predetermined distance between one another, and being perpendicular to the transparent vertical electrodes; and supporting means which are respectively located on the edge portions of the substrate for supporting the horizontal electrodes.
Abstract:
A plasma display panel for plasma display system provides excellent optical characteristics, including a color purity, contrast, and luminance, of a plasma display system. Barrier ribs forming a cell has wavelength-selective reflective filters for reflecting only a light of wavelength needed for display and absorbing the other lights coated thereon. The wavelength-selective reflective filters have phosphors coated thereon. A color filter is inserted between a first front panel and second front glass panel for feeding out the light in a sandwich state.
Abstract:
To achieve an expansion of color reproducibility and an improvement in contrast ratio, color filters 8R, 8G and 8B formed in stripes are successively arranged on one surface of a front glass substrate 1, interposing a black matrixes 7 between them. Sustaining electrodes 6 are provided thereon and a dielectric layer 9 and a protecting layer 10 are provided. On a rear glass substrate 2, barrier ribs 3 are provided in the manner they face the respective black matrixes 7, and thus the spaces between the barrier ribs 3 facing the respective color filters 8R, 8G and 8B form cells. The cells are respectively provided with the sustaining electrodes 6 falling at right angles with the address electrodes 4, coated with fluorescent substances 5R, 5G and 5B corresponding to the respective colors, and also sealed to hold discharge gas therein. A wave band selecting filter 11 for screening the light emitted from the discharge gas in the respective cells is provided on the other surface of the front glass substrate 1.
Abstract:
The first object of the present invention is to provide a PDP with improved panel brightness which is achieved by improving the efficiency in conversion from discharge energy to visible rays. The second object of the present invention is to provide a PDP with improved panel life which is achieved by improving the protecting layer protecting the dielectrics glass layer. To achieve the first object, the present invention sets the amount of xenon in the discharge gas to the range of 10% by volume to less than 100% by volume, and sets the charging pressure for the discharge gas to the range of 500 to 760Torr which is higher than conventional charging pressures. With such construction, the panel brightness increases. Also, to achieve the second object, the present invention has, on the surface of the dielectrics glass layer, a protecting layer consisting of an alkaline earth oxide with (100)-face or (110)-face orientation. The protecting layer, which may be formed by using thermal Chemical Vapor Deposition (CVD) method, plasma enhanced CVD method, or a vapor deposition method with irradiation of ion or electron beam, will have a high sputtering resistance and effectively protect the dielectrics glass layer. Such a protecting layer contributes to the improvement of the panel life.
Abstract:
A discharge display device wherein a gas-tight space defined by two plates and a sealing member is divided into a plurality of discharge chambers by partition walls formed on one of the two plates, and height adjusting layers are interposed between end faces of the respective partition walls and an inner surface of the other plate. Each height adjusting layer is formed from a material which has a softening point not lower than that of the sealing member and which is softened at a sealing temperature at which the two plates are bonded together by the sealing member. The height adjusting layers, which assure gas-tight separation of the discharge chambers, may replace upper end portions of the partition walls. Alternatively, the partition walls may be entirely formed from the above-indicated material. Also disclosed is a process of fabricating such a discharge display device, wherein height adjusting layers are softened at the sealing temperature when the two plates are bonded together with the melting of the sealing member.