Abstract:
Two arrays of main X and Y electrodes are juxtaposed with two arrays of auxiliary electrodes in two parallel plane respectively. Two half illumination or extinction pulses less in magnitude than a discharge voltage across the opposite arrays and opposite in polarity are applied to selected ones of the X and Y electrodes to initiate or terminate an electric discharge or discharges across them. A pulse train including positive pulses alternating negative pulses is applied across the arrays of auxiliary electrodes to be discharged across those auxiliary electrodes juxtaposed with the selected X and Y electrodes upon each inversion of the pulses polarity after the first discharge.
Abstract:
A display system for a plasma display device in which a plurality of electrodes are arranged on each of a pair of opposing base plates with a discharge gas space defined therebetween, the plurality of electrodes on each base plate being arranged to intersect those on the other base plate perpendicularly to them; the electrodes on at least one of the base plate are covered with a dielectric layer to form a display layer; the other plate serves as a shift layer; a discharge produced between adjacent electrodes of the shift layer is shifted; and a discharge is caused between adjacent electrodes of the display layer in accordance with the timing of the shifting of the discharge in the shift layer and that of writing in the display layer.
Abstract:
A plasma display device uses the same area for selectively displaying several fixed displays images. The device has cavities which are arranged in rows and columns in a gridlike manner. Each fixed image has a fixed number of cavities associated with it only, and each image may extend substantially over the given area when necessitated by the design thereof. Rows of spaced parallel electrodes and columns of spaced parallel electrodes are aligned with their associated rows and columns of cavities. Alternate ones of the rows of electrodes are connected together and alternate ones of the columns of electrodes are connected together to form a simple selection scheme for energizing the device to display the selected fixed image.
Abstract:
A pair of insulating substrates, at least one of which provides a group of electrodes on the inside surface, are positioned in spaced parallel relation having inside surfaces opposite each other with a gap filled with ionizable gas. The surface of the group of electrodes is covered with a dielectric layer, and this dielectric layer is covered with a material having a high secondary electron emissivity by introducing a fluid which includes alkali metal into the above-mentioned gap. Further, the dielectric layer is composed of a material having small activity with alkali metal.
Abstract:
A pair of glass plates of a gaseous discharge display or memory device are held precisely spaced by two sets of identically sized overlapping spacer rods. The rods crisscross orthogonally within a sealed gas-containing chamber to create gaps through which the gas can flow without significant restriction between areas of the chamber separated by said rods. Sealing rods of glass having a softening temperature lower than that of the spacer rods are disposed like a border around the spacer rods and are of significantly greater diameter or height than the combined height of the two superposed sets of spacer rods. Initially the upper plate is supported solely by sealing rods; but upon heating of the assemblage, the sealing rod glass reflows, and the upper plate settles until it contacts the upper set of spacer rods; whereupon the assembly is cooled and the sealing rods fuse with the plates to create an impermeable chamber between the now precisely spaced plates.
Abstract:
There is disclosed a gas discharge device having an inherent memory wherein all electrically operative elements are formed on a common support substrate. The device comprises a monolithic panel structure in which the conductor arrays are created on a single substrate and wherein two or more arrays are separated from each other and from the gaseous medium by at least one insulating member. In such a device the gas discharge takes place not between two opposing members, but between two contiguous or adjacent members on the same substrate.
Abstract:
Electrodes manufactured by the method according to the present invention are used for generating a firing spot, which is utilized for an indication in a display device utilizing gas discharge or a plasma display panel. First, an electrode pattern having a predetermined dimension is formed in grooves on the inside surface of the dielectric supporting substrate; second, metal paste for electrodes is inlaid in the above-mentioned grooves then, said metal paste inlaid in the grooves is baked, and then the electrodes are formed on the supporting substrate.
Abstract:
A plasma charge transfer device utilizable as a shift register memory and/or display utilizing ionizable gas contained in an enclosure with a plurality of individual transfer electrodes covered with a dielectric material aligned parallel on opposite internal walls of the enclosure, but offset one another, throughout its length. This plasma charge transfer device utilizes: an ionizable gas; an input electrode which can be either directly or capacitively coupled to the gas; capacitively coupling to the gas of oppositely offset transfer electrodes; and the wall voltage which results when charge is transferred as the result of a gaseous discharge occurring between two oppositely offset transfer electrodes -- the additive effect of this wall voltage to an applied voltage such that a gaseous discharge occurs between two transfer electrodes if charge was transferred to one of the electrodes during a previous discharge whereas a gaseous discharge will not occur with this same applied voltage between any two oppositely offset electrodes which do not have the proper charge trapped on the wall of at least one of the electrode pairs. Upon the proper application of command signals, a gaseous discharge can be successively transferred between subsequent oppositely offset transfer electrode pair, one electrode position at a time, or continuously shifted throughout the entire length of the plasma charge transfer device, or may be held stationary at any oppositely offset transfer electrode pair position within the device. When the plasma charge transfer device is used as a shift register memory, information to be retrieved at the register output may be optically or electronically recognized and erased.
Abstract:
There is disclosed the preparation of an electronic device comprising a gas discharge panel constructed out of two or more glass substrates, each substrate containing at least one array of electrodes. In one preferred embodiment, there is prepared a display/memory panel comprising a dielectric coating or layer applied over an array of electrodes. The panel preparation comprises firing and curing the electrode (with or without a dielectric coating) onto a glass substrate which is supported by a base plate which maintains its surface flatness and lubricity at the elevated firing and curing temperatures such that the relative flatness and smoothness of the glass substrate (and any dielectric coating fired thereon) are enhanced and the uniformity of the panel spacing is improved. The base plate is typically prepared from a refractory or ceramic-like material.
Abstract:
THERE IS DISCLOSED A PROCESS FOR EMBEDDING PHOSPHOR PARTICLES IN THE SURFACE OF AT LEAST ONE DIELECTRIC MEMBER TO BE ASSEMBLED IN A MULTIPLE GASEOUS DISCHARGE DISPLAY/ MEMORY PANEL SUCH THAT THE PHOSPHOR PARTICLES ARE PARTIALLY EXPOSED TO THE GASEOUS MEDIUM OF THE ASSEMBLED PANEL AND ARE CAPABLE OF BEING EXCITED BY RADIATION FROM THE GASEOUS DISCHARGES OF SUCH ASSEMBLED PANEL. ANY SUITABLE LUMINESCENT PHOSPHOR WHICH IS COMPATIBLE WITH THE DIELECTRIC MAY BE USED; HOWEVER, PHOTOLUMINESCENT PHOSPHORS ARE HIGHLY PREFERRED. ONE EMBODIMENT COMPRISES PARTIALLY EMBEDDING THE PHOSPHOR PARTICLES BY MEANS OF A PHOTOSENSITIVE MATERIAL.