摘要:
There is disclosed a multiple gaseous discharge display/memory panel having an electrical memory and capable of producing a visual display, the panel being characterized by an ionizable gaseous medium in a gas chamber formed by a pair of opposed dielectric material charge storage members which are respectively backed by an array of conductor (electrode) members, the conductor array behind each dielectric material member being appropriately oriented with respect to the conductor array behind the opposing dielectric material member so as to define a plurality of discrete discharge volumes constituting a discharge unit, the gas surface of at least one dielectric material member containing at least one inorganic lead compound.
摘要:
An improved electrode structure (42', 42") for an addressing structure using an ionizable gaseous medium has a plurality of plasma discharge channels (20') and a reference electrode (30', 30") and a row electrode (62') extending along each channel. The channels open into a plenum (118) for exhausting gases from the channels and introducing into the channels an ionizable gaseous medium at a predetermined pressure. The reference electrodes and the row electrodes enter from opposite ends of the channels, and the reference electrodes cross below the plenum. The row electrodes have an end (110) spaced from the ends (102) of the channels. The end of the row electrodes is separated from the end of the channels by a first distance (D) adequate to prevent undesirable plasma discharge while the electrode structure is operating. In a first embodiment (42') the reference electrodes have an end (112) spaced from a first perimeter seal (106). The ends of the reference electrodes are separated from the first perimeter seal by a second distance (E) adequate to prevent substantial erosion or other disassociation of the first perimeter seal resulting from plasma discharge in the channel. In a second embodiment (42") the ends (112') of the reference electrodes are embedded in the first perimeter seal (106').
摘要:
An improved write waveform is provided for a gas panel of the type in which light emitting cells are formed in an ionizable medium at the cross points of a set of horizontally and vertically extending insulated wires. A write pulse of high amplitude is followed by an opposite polarity pulse of an amplitude and width to produce cell wall charge storage from the ionization that accompanies the fall of the high amplitude write pulse. The invention also provides a method and circuit for reading the state of a cell by applying the high amplitude write pulse to a cell and detecting the difference between the smaller current that occurs at the leading edge of the write pulse for a previously written cell and the larger current for an erased cell.
摘要:
Method and apparatus for electrically interrogating gaseous discharge cells in a plasma panel to sense the state of said cells by selectively coupling a sensing impedance element for detecting the presence of a discharge current associated with cells having information. Graphic systems using electrical interrogation of gaseous discharge cells in a plasma panel to provide image editing and/or image transfer.
摘要:
There is disclosed a multiple gaseous discharge display/memory panel having an electrical memory and capable of producing a visual display, the panel being characterized by an ionizable gaseous medium in a gas chamber formed by a pair of opposed dielectric material charge storage members which are respectively backed by an array of conductor (electrode) members, the conductor array behind each dielectric material member being appropriately oriented with respect to the conductor array behind the opposing dielectric material member so as to define a plurality of discrete discharge volumes constituting a discharge unit, the surface of at least one dielectric material member comprising at least one inorganic non-oxide lead compound, said compound being present in an amount sufficient to improve the operating characteristics of the panel, especially more uniform and/or lower panel operating voltages. Although the invention typically comprises display/memory panels having opposed dielectric members, it is contemplated using this invention with panels having only one insulated electrode and/or only one dielectric member such as in a monolithic type device.