Abstract:
A device for forming partition walls of a plasma display panel is disclosed. This device has a lower plate used for seating the base panel of the plasma display panel thereon, with a partition wall sheet of a predetermined thickness formed on the base panel and a plurality of electrodes arranged on the base panel. A punch, having a plurality of partition wall forming grooves and a plurality of lands formed between the partition wall forming grooves. An electrode holding groove or inclined surface is formed on each of the lands and is used for preventing the electrodes from being undesirably moved during a partition wall forming process. An upper plate is positioned above the punch so as to hold the punch and to move the punch in a vertical direction within a predetermined range. Due to the electrode holding grooves or the inclined surfaces formed on the lands, the device of this invention thus almost completely prevents an undesired movement of the printed address electrodes of the base panel, thus finally allowing a precise arrangement of the partition walls with the address electrodes on the base panel.
Abstract:
A protective plate for a plasma display comprises conductive substrate for protecting a plasma display and an electrode in electrical contact with the conductive substrate.
Abstract:
A radio frequency plasma display panel that is capable of reducing a height of a barrier rib and a frequency of a radio frequency signal as well as improving a light-emission efficiency. In the radio frequency plasma display panel, a plurality of discharge cells are arranged in a matrix pattern. Each of the discharge cells has upper and lower substrates. First and second address electrodes are provided on at least one of the upper and lower substrates to generate an address discharge. Barrier ribs are provided between the upper and lower substrates to define a discharge space. First and second radio frequency electrodes are provided the respective barrier ribs opposed to each other to generate a radio frequency sustaining discharge. Accordingly, the radio frequency sustaining discharge is generated between the first and second radio frequency electrodes within the respective barrier ribs for a long time, so that a height of the barrier ribs and a frequency of a radio frequency signal can be lowered.
Abstract:
On a substrate (9) on which barrier ribs (91) are formed, a nozzle (71) is inserted between the barrier ribs (91) and discharges a phosphor paste (92). The nozzle (71) has a slit (712) in a direction orthogonal to a traveling direction and the phosphor paste (92) is discharged from the slit (712) towards a bottom surface and side surfaces of a valley between the barrier ribs (91). The phosphor paste (92) after the discharge is shaped by a rear portion (713) of a tip of the nozzle (71) and applied to the bottom surface and side surfaces of the valley to have an appropriate thickness.
Abstract:
A method of forming barrier ribs on a back plate for use in a flat panel display. The method includes a step of delivering a rib material from a nozzle and leveling surfaces of the barrier ribs while moving the nozzle and back plate relative to each other.
Abstract:
A flat display panel comprising a flat display panel main body, and a front protective plate which comprises an antireflection layer, a translucent electrically conductive layer, containing a metal having an electromagnetic wave shielding property and a near infrared ray shielding property, a highly rigid transparent substrate made of a tempered glass or a semi-tempered glass and an adhesive layer laminated in this order, bonded to the viewer's side surface of the flat display panel main body by means of the adhesive layer.
Abstract:
In a cell drive-type flat display panel, a metal electrode pad 26 and common signal line 24 are disposed outside the area (effective area) facing a recessed portion forming a cell. The individual cell electrode 20 acting as a cell electrode within the effective area is connected to a metal electrode pad 26 by extending each cell electrode to the metal electrode pad 26, while the metal electrode is not extended toward the effective area to cover each cell electrode. A common electrode 22 is connected to the common signal line 24 by extending each cell electrode to the metal electrode pad 26, while the metal electrode is not extended toward the effective area and to cover each cell electrode. This structure makes the cell electrodes flat and can reduce the drive voltage from the effect resulting from the suppressed dielectric film. The metal electrode pad 26 has a top surface on which a pin electrode is posted. The dielectric layer has an opening from which the metal electrode pad 26 is exposed, and covers the edges of the metal electrode pad 26. This structure can prevent the transparent electrode layer bridging the individual electrode 20 with the metal electrode pad 26 from making contact with the dielectric layer or frit with high reactivity.
Abstract:
The invention proposes a pumping tube shape which makes it possible, on the one hand, to guide the pumping tube when positioning the latter on the tile and when producing the seal by heating and, on the other hand, to prevent runs inside the pumping hole. Moreover, the pumping tube of the invention makes it possible to produce an almost ideally distributed homogeneous seal, thereby ensuring that the latter seals reliably. The invention also relates to a plasma display panel having the pumping tube of the invention.
Abstract:
An EMI (ElectroMagnetic Interference) shield filter for a display unit has a conductive mesh in which a plurality of first and second conductors are arranged in horizontal and vertical directions. A gap in one of the first and second conductors is set larger than that in the other one of the first and second conductors that attenuate a field strength of higher one of horizontal and vertical polarized components of EMI of the display unit, so that the horizontal and vertical polarized components have substantially the same field strength after attenuation. A display apparatus having this EMI shield filter is also disclosed.
Abstract:
A transparent electromagnetic radiation shielding material is disclosed. The material comprises an identical mesh-pattern laminated layer consisting of a black layer/metallic layer or a metallic layer/black layer or a black layer/metallic layer/black layer. The laminated layer is sequentially formed by dry plating and is formed so that identical mesh patterns match with each other.