Abstract:
A plasma charge display device having a channel containing an ionizable medium with the channel defining an endless length as in the case of a circular channel. At least one input electrode is located in a first position, and transfer electrodes extend away from the input electrode on opposite sides thereof completely along the length of the channel. Gas ionization results in the formation and shifting of light emitting areas in either direction relative to the position of the input electrode. The transfer electrode positions are related to the input electrode position in a manner such that the light emitting areas can be shifted through the position of the input electrode from one side to the other thereof.
Abstract:
There is disclosed a multiple gaseous discharge device containing at least one insulated electrode, an ionizable gaseous medium, and a multiplicity of gas discharge cells, the gaseous medium having incorporated therein at least one selected gaseous component which emits high intensity ultraviolet radiation upon appropriate excitation such that the gaseous discharge device has improved photon conditioning. Preferably the gas additive is selected from mercury, xenon, and krypton.
Abstract:
Discharge spots on a display device can be shifted by using the primary current effect. For the purpose of shifting the discharge spots, electrodes with a right angle to a shift direction are connected periodically to a plurality of buss to which a series of sustaining signals are supplied in a predetermined time differences. This function of shifting the discharge spots can simplify the peripheral circuit of the display device and also increase a domain of the application of this kind of display device, such as a plasma display panel.
Abstract:
A gaseous discharge display/memory panel having electrodes positioned to define discharge sites within the range of influence of other sites such that the transfer of one site to the ''''on state'''' of discharge will in the presence of appropriate potentials applied to the electrodes cause an adjacent site to be placed in the on state by spatial discharge transfer. Discharge sites are grouped as sub sites so that spatial discharge transfer is controlled in the coupling or interaction by the spatial relationships of the sub sites. Panel conductors for the discharge sites are arranged in various configurations from a single conductor having crosspoints defining discharge sub sites with two conductors to conductor arrays having a plurality of grouped conductors in each of two arrays forming a plurality of crosspoints for each conductor and patterned groups of discharge sub sites intercoupled for spatial discharge transfer. Logic can be performed internally of the panel by applying erase signals to all discharge sub sites of an on state group to be erased such that that group is in an ''''off state'''' of discharge. The truth table of groups of discharge sub sites is such that any on state sub site places the entire group in the ''''on state'''' as an OR function and only an off state for all sub sites of a group is effective to erase the group as an AND function. The negation of these functions as a NOR or a NAND can be accomplished by inverting the discharge of all groups in the panel, applying the basic function to the desired group, and reinverting the discharge states of all groups in the panel.
Abstract:
An electroluminescent display device comprising a plurality of discrete gas cells formed by superimposing a first plate containing a plurality of chambers on a second plate containing a plurality of chambers equal in number to those on the first plate. One side of each cell is capacitively coupled to a common transparent electrode, and the other side of each cell is capacitively coupled to a corresponding segment electrode. The common transparent electrode and the segment electrodes of selected cells are alternately energized, thus resulting in the intermittent ionization, i.e., gas discharge, of the gas within the cell. The illumination provided by the occurrence of the gas discharge in the selected cells is sufficient for the visual display of numeric, symbolic, and alphabetic information.
Abstract:
There is disclosed the conditioning of a gaseous discharge phosphor color display device containing an ionizable gaseous medium and at least two different phosphors, each phosphor being excited by ultraviolet radiation emitted from the gaseous discharge or another source, one phosphor emitting light in the visible range for viewing of the display and another phosphor emitting radiation in the near UV non-visible range for the efficient photon conditioning of the gaseous medium without exciting the other phosphor.
Abstract:
A plasma display panel of long life, more than several thousand hours, having a plurality of electrode pairs covered with dielectric layers facing to discharge gas space, and surface reinforcing film on one or both surface of the dielectric layers facing to discharge gas space. The surface reinforcing film is made from insulating materials, the chief component of which is an oxide of a rare-earth element.
Abstract:
There is disclosed a display/memory panel or unit containing an ionizable gaseous medium and at least one dielectric charge storage member, the gaseous medium consisting essentially of neon and about 0.01 to about 10 percent atoms of xenon so as to significantly increase the memory margin of the panel. In one preferred embodiment the gaseous medium consists essentially of neon and about 0.05 to about 5 percent atoms of xenon, most preferably about 0.05 to about 0.5 percent atoms of xenon. The gaseous medium may contain small beneficial amounts of other gaseous ingredients, such as mercury. Likewise, buffering quantities of helium may be incorporated into the panel with the ionizable medium. In the most preferred practice hereof, the charge storage portion of the dielectric is coated with at least one layer of at least one member selected from oxides of lead, aluminum, titanium, zirconium, hafnium, silicon and Group IIa.
Abstract:
A plasma display panel device has a pair of electrodes arranged to face with each other with a sealed discharging gap therebetween in which a dischargeable gas is filled. When a voltage is impressed between the electrodes an electrical discharge of the gas will be caused and provide luminescence to display a character, such as a letter or a figure in accordance with the selected electrodes. Only one insulating layer, which covers one of the pair of the electrodes, is needed to effectively operate the display. A wall charge having an opposite polarity to that of the electrode voltage is provided on the insulating layer whereby a decrease of the electrode voltage can be prevented and the memory function, capable of turning ''''on'''' (to write) and ''''off'''' (to erase) by impressing a write pulse or an erase pulse, is formed. The single insulating layer enables a decrease of the operation voltage, a high resolution and an accurate writing and erasing to be realized.
Abstract:
A multicelled gas discharge device in which individual cells are made up of spatial discharge transfer related discharge sub sites is provided with interconnections between conductors which are integral with the device. Sub sites have their conductor portions interconnected in both series and parallel relationships by connecting array conductor lines in parallel with display connector lines of conductive material integral with the device in combinations such that each cell has a group of discharge sub sites uniquely connected to terminals to external circuitry. These connections are made on the non-conductive surface supporting the array and on a dielectric layer overlying portions of the conductors and apertured in registry with the conductors to admit portions of display connector lines on the dielectric layer to engage the conductors. Paralleling connections to the array conductors are made at one side of the array and both sides of the array. They connect the conductors at one or both ends. Various geometries are proposed including those for monolithic display devices.