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US 4,827,186 AGranted
Alternating current plasma display panel
AssigneeMagnavox Government and Industrial Electronics Company
InventorsPaul E. Knauer, Ronald D. Cleven
Life of this patent
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AssigneeMagnavox Government and Industrial Electronics Company
InventorsPaul E. Knauer, Ronald D. Cleven
Estimating the term…
Improvements in alternating current plasma display panels are disclosed including an imperforate intermediate structure in such a panel which provides both the function of a separator between the front and back plates (layers or structures) of the panel and the function of cross talk reducing barriers between cells of the panel. The structure includes spacing bosses which extend from the barrier structure and engage the front transparent dielectric plate, and sidewall portions intermediate adjacent pairs of spacing bosses which are separated somewhat from the front dielectric plate to provide a gas and ion passing gap between adjacent cells. In one preferred form, the sidewalls blend into a generally flat bottom wall within each cell. The sidewalls and bottom wall have a smooth or specular surface and may be coated with a reflective material to enhance cell brightness.
In an alternating current gas discharge display panel having a plurality of gas discharge cells arranged in a generally flat matrix, and first and second sets of spaced apart electrodes with each cell located intermediate one electrode of the first set and one electrode of the second set, the improvement comprising an intercell barrier structure formed as an imperforate layer of dielectric material intermediate the first and second sets of electrodes and extending substantially throughout the matrix, the imperforate layer having a plurality of concavities in one face thereof, each of said concavities being associated with a unique cell, the display panel being formed with a first generally flat dielectric layer having the first set of electrodes therein, a second generally flat dielectric layer having the second set of electrodes therein, and the intercell barrier structure providing a uniform separation between the first and second dielectric layers.
In an alternating current gas discharge display panel having a plurality of gas discharge cells arranged in a generally flat matrix, and first and second sets of electrodes for selectively inducing and inhibiting gas discharge within selected cells, the improvement comprising an intercell barrier structure formed as an imperforate layer of dielectric material intermediate the first and second sets of electrodes and extending substantially throughout the matrix, the imperforate layer having a plurality of concavities in one face thereof each associated with a unique cell, the electrodes comprising first and second sets of spaced apart electrodes with each cell located intermediate one electrode of the first set and one electrode of the second set, the electrode sets disposed in generally parallel spaced apart planes and extending linearly generally orthogonal to one another, the display panel being formed with a first generally flat dielectric layer having the first set of electrodes therein, a second generally flat dielectric layer having the second set of electrodes therein, and the intercell barrier structure providing a uniform separation between the first and second dielectric layers.
An alternating current gas discharge display panel having a plurality of gas discharge cells arranged in a generally flat matrix, having a generally planar front viewing surface, and comprising in sequence from the viewing surface;
Dependencies are inferred from the claim text.