Abstract: A PDP having a novel cell structure that is superior in light emission efficiency is provided. A conductive film to be display electrodes X and Y is formed on side portions of a wall so that a main surface that contributes to discharge in the display electrode X is disposed so as to be opposed to a main surface of the neighboring display electrode Y via a gas space. A power supplying portion straddling plural cells in the display electrodes X and Y is provided on the upper surface of the wall. The display electrodes X and Y are covered with a dielectric layer that is thin at the side portion and thick at the top portion of the wall.

Abstract: A plasma display panel for easy fabrication is provided with an improved black stripe structure. The structure eliminates the black stripes on a front substrate, leading to more freedom in material selection without suffering from the known problem of tarnishing of component members. Further, non-discharge spaces are provided in barrier ribs formed on a rear substrate and black material layers functioning as the black stripes are formed in cavities corresponding to the non-discharge spaces. Thus, this structure serves to form the black material layers in a sequential process which is similar to that for forming phosphor layers, thereby allowing the plasma display panel to have excellent contrast without complicating the structure and the fabrication process thereof.

Abstract: A method for transferring a three-dimensional structure onto a substrate, which includes filling a plurality of concaves arranged on a sheet-form mold with a paste-like structural material, temporarily fixing the mold to a support member, contact-bonding the structural material in a state in which the structural material has the adhesion property or bonding property to the substrate together with the mold, releasing the temporary fixation of the mold by the support member after the contact-bonding, and removing the mold from the substrate, thereby transferring a three-dimensional structure onto the substrate.

Abstract: A method for transferring a three-dimensional structure onto a substrate, which includes filling a plurality of concaves arranged on a sheet-form mold with a paste-like structural material, temporarily fixing the mold to a support member, contact-bonding the structural material in a state in which the structural material has the adhesion property or bonding property to the substrate together with the mold, releasing the temporary fixation of the mold by the support member after the contact-bonding, and removing the mold from the substrate, thereby transferring a three-dimensional structure onto the substrate.

Abstract: A method of preparing a barrier rib master pattern for barrier rib transfer, which includes the steps of forming a photosensitive material layer on a substrate performing oblique exposure by projecting exposure light onto the photosensitive material layer with the intervention of a photomask obliquely with respect to the substrate, and developing the photosensitive material layer, whereby a rib pattern having tapered side walls is formed on the substrate.

Abstract: A method of preparing a barrier rib master pattern for barrier rib transfer, which includes the steps of forming a photosensitive material layer on a substrate performing oblique exposure by projecting exposure light onto the photosensitive material layer with the intervention of a photomask obliquely with respect to the substrate, and developing the photosensitive material layer, whereby a rib pattern having tapered side walls is formed on the substrate.

Abstract: The invention relates to a method for forming barrier ribs of a plasma display panel. A master of barrier ribs for fabricating a mold for transferring barrier ribs is easily produced without the use of a machining technique. In the method for forming barrier ribs of a plasma display panel, a light-transmissive substrate having a predetermined pattern of a light-tight material formed on a surface and a photosensitive material layer bonded on the pattern is exposed to light from the rear surface of the light-transmissive substrate and developed so as to fabricate a master in which convex portions in a rib configuration are formed on the light-transmissive substrate. By using the master, a transfer mold for barrier ribs is fabricated. A rib material is filled in concave portions of the transfer mold and transferred onto a substrate for a PDP, thereby forming barrier ribs on the substrate for the PDP.

Abstract: A method of manufacturing a panel assembly used to assemble a display panel intends to achieve an alignment-free between barrier ribs and a fluorescent layer and minimize the waste of a barrier rib material for cost reduction. On a support body 51 which is not a substrate, formed are a plurality of walls 281 through 283 made of a fluorescent material that are belt-shaped in plan view arranged in stripes, an electrode material layer a1, and a barrier rib material filling spaces between the walls. The support body 51 and a substrate 21 are coupled so that the barrier rib material faces the substrate. The walls 281 through 283, the electrode material layer a1 and the barrier rib material 291 are transferred in one step to the substrate 21, and thus a panel assembly 20 having barrier ribs 29, electrodes A and fluorescent layers 28R, 28G and 28B is obtained.

Abstract: A cathode device comprising a plurality of emitter tips having conical tip end portions to emit electrons therefrom. A gate electrode layer has an opening through which the tip end portion of each of the emitter tips is exposed. The diameter of the opening in the gate electrode layer is made smaller than that of the portion of the emitter tip at the juncture thereof with the substrate. In the fabrication of the cathode device, an oxide layer is formed at least on the surface of the formed emitter tip to sharpen the latter. By removing the oxide layer, an inner circumferential wall of the opening of the gate electrode layer is formed on the outside of the conical tip end portion of the emitter tip and extends approximately in parallel to the conical tip end portion of the emitter tip.

Abstract: A method of forming barrier ribs for a display panel, comprising the steps of: forming a glass layer for an underlying layer having a first low-melting glass powder with a softening point of a temperature A dispersed in a vehicle, and a glass layer for a barrier-rib layer having a second low-melting glass powder with a softening point of a temperature B2 higher than the temperature A and a third low-melting glass powder with a softening point of a temperature B1 higher than the temperature A but lower than the temperature B2 dispersed in a vehicle, on a substrate in this order; heating up to sinter the glass layer for the underlying layer and the glass layer for the barrier-rib layer at a temperature Z higher than the temperature A but lower than the temperature B2, thereby burning out the vehicles therefrom, forming a carve-resistive underlying layer and a barrier-rib material layer easy to carve; forming a mask for carving in a pattern corresponding in plan to barrier ribs on the barrier-rib material layer,

Abstract: The present invention provides a method of forming a plurality of barrier ribs each having an elongate configuration in plan and extending in the same direction within a display area for fabrication of a display panel. The method comprises the steps of forming a mask for cutting, having a masking pattern corresponding to the plurality of barrier ribs on a rib material layer, and removing portions of the rib material layer by jetting a cutting medium thereto, wherein the masking pattern is configured such that a plurality of elongate portions corresponding to the respective barrier ribs each extend across the display area to the outside of the display area and a spacing between adjacent end portions of elongate portions is smaller than a spacing between adjacent elongate portions within the display area.

Abstract: A method of forming barrier ribs of a display panel includes the steps of forming a layer of a dielectric paste containing a powdery component and a binder component as a layer of a barrier rib material in a predetermined thickness on a substrate, forming a mask pattern on the dielectric paste layer, jetting a cutting medium onto the dielectric paste layer through the mask pattern to partially cut the dielectric paste layer to thereby form a cut barrier rib layer, and sintering the cut barrier rib layer to make barrier ribs, wherein, prior to forming the mask pattern, a bind film is formed for fixing the powdery component in a free state on the surface of the dielectric paste layer.

Abstract: A plasma display panel has a matrix of plural first straight electrodes and plural straight second electrodes, respectively crossing each other, and a unit color element located at a crossing point of the first and second electrodes. A plurality of separator walls are spaced apart from each other and extend along the second electrodes, dividing a discharge space into a plurality of channels extending along respective, second electrodes. The separator walls undulate with a fixed periodicity so as to define alternating wide and narrow portions aligned along each channel and the respective first electrode. A fluorescent material is coated in each channel, the colors emitted from the fluorescent material being identical in each channel. A gas discharge takes place selectively at the wide portions in cooperation with the respective first and second electrodes.

Abstract: A plasma display panel has a matrix of plural first straight electrodes and plural straight second electrodes, respectively crossing each other, and a unit color element located at a crossing point of the first and second electrodes. A plurality of separator walls are spaced apart from each other and extend along the second electrodes, dividing a discharge space into a plurality of channels extending along respective, second electrodes. The separator walls undulate with a fixed periodicity so as to define alternating wide and narrow portions aligned along each channel and the respective first electrode. A fluorescent material is coated in each channel, the colors emitted from the fluorescent material being identical in each channel. A gas discharge takes place selectively at the wide portions in cooperation with the respective first and second electrodes.

Abstract: A cathode device includes a plurality of emitter tips having conical tip end portions to emit electrons therefrom. A gate electrode layer has an opening through which the tip end portion of each of the emitter tips is exposed. The diameter of the opening in the gate electrode layer is made smaller than that of the portion of the emitter tip at the juncture thereof with the substrate. In the fabrication of the cathode device, an oxide layer is formed at least on the surface of the formed emitter tip to sharpen the latter. By removing the oxide layer, an inner circumferential wall of the opening of the gate electrode layer is formed on the outside of the conical tip end portion of the emitter tip and extends approximately in parallel to the conical tip end portion of the emitter tip.

Abstract: A cathode device comprising a plurality of emitter tips having conical tip end portions to emit electrons therefrom. A gate electrode layer has an opening through which the tip end portion of each of the emitter tips is exposed. The diameter of the opening in the gate electrode layer is made smaller than that of the portion of the emitter tip at the juncture thereof with the substrate. In the fabrication of the cathode device, an oxide layer is formed at least on the surface of the formed emitter tip to sharpen the latter. By removing the oxide layer, an inner circumferential wall of the opening of the gate electrode layer is formed on the outside of the conical tip end portion of the emitter tip and extends approximately in parallel to the conical tip end portion of the emitter tip.

Abstract: A field emission cathode device comprising a semiconductor substrate, a semiconductor cathode electrode layer, emitter tips formed on the cathode electrode layer to emit electrons therefrom, and a gate electrode layer formed on an insulating layer. Each of the emitter tips is arranged in the aligned apertures of the gate electrode layer and the insulating layer. To electrically isolate two adjacent cathode electrode lines from each other, the cathode electrode layer is made of a semiconductor having a conductivity type different from that of the substrate. Alternatively, the cathode electrode is made of a semiconductor having the same conductivity type as that of the substrate, and in this case, a portion between two adjacent cathode electrode lines is made of a heavily doped semiconductor so as to electrically isolate two adjacent cathode electrodes.

Abstract: A process for forming a pattern on a substrate which includes depositing a film-forming material from above a mask formed on the substrate and forming a film on the mask and in regions of the substrate not covered by the mask, wherein the film formation is carried out while irradiating an ion beam towards the mask so that the deposition on the side surface portion of a deposition material being deposited on the mask is inhibited by ion milling. An electronic device such as a micro field emission cathode or a multi-layer circuit structure is effectively formed using the process.

Abstract: A method for manufacturing a metallic ornamental plate is provided comprising the steps of press-forming a light metal plate to provide a first planar region having a first surface, and a second planar region having a second surface elevated from the first surface; and machine-finishing the elevated second surface of the second planar region to define a distinct ornamental pattern against the first surface wherein the machine-finishing step removes material from the elevated second surface.