초록 ▼

The dot matrix plasma display of the present invention comprises a plurality of parallel cathode strips mounted on the upper surface of a dielectric substrate. A glass plate is sealingly engaged over the upper surface of the substrate in spaced relation thereto so as to form an envelope therebetween

The dot matrix plasma display of the present invention comprises a plurality of parallel cathode strips mounted on the upper surface of a dielectric substrate. A glass plate is sealingly engaged over the upper surface of the substrate in spaced relation thereto so as to form an envelope therebetween. The undersurface of the glass plate includes a plurality of anode strips which extend in a direction parallel to one another and perpendicular to the cathode strips located on the substrate below. A dielectric film is printed over the cathode strips and includes a plurality of apertures therein which correspond to the junctures between the anode strips and the cathode strips, these junctures forming a dot matrix. Ionizable gas is contained within the envelope and is adapted to glow adjacent the junctures of any simultaneously actuated anode and cathode strips. The method for driving the dot matrix plasma display includes actuating the cathode strips one at a time sequentially. Simultaneously with the actuation of each cathode strip, a pre-selected combination of anodes are also actuated so as to cause the gas to glow adjacent the junctures between the actuated anodes and cathode strips. The cathode strips are scanned at a frequency which to the human eye gives the appearance that they are constantly actuated.

대표청구항 ▼

A direct current dot matrix digital display device comprising: a dielectric substrate having a flat upper surface, a plurality of elongated cathode strips mounted on the upper surface of said substrate and being arranged in parallel spaced relation to one another, a printed dielectric layer on said

A direct current dot matrix digital display device comprising: a dielectric substrate having a flat upper surface, a plurality of elongated cathode strips mounted on the upper surface of said substrate and being arranged in parallel spaced relation to one another, a printed dielectric layer on said substrate and said cathode strips and having a plurality of openings therethrough each communicating with a portion of said cathode strips, said openings being formed in rows and columns to form a matrix, and rows of openings each being aligned over one of said cathod strips, a transparent top plate having an under surface and sealed to the perimeter of said substrate by sealing means and positioned above and in spaced relation to said dielectric layer to create an envelope of space above, in communication with, and completely enveloping said matrix of openings; a plurality of elongated anode strips mounted on the undersurface of said top plate within said envelope of space and in spaced relation to said dielectric layer, said anode strips extending perpendicular to and above said cathode strips and each being spaced above and in registered alignment with one of said columns in said matrix of openings in said dielectric layer, a mass of ionizable gas filling said envelope of space and said matrix of openings in said dielectric layer whereby said anode strips are all in direct contact with said mass of ionizable gas, said anode strips and said cathode strips being the only electrodes positioned in alignment with said matrix of openings, said envelope being substantially free of barriers between said rows and column of openings, and terminal means for said anode and cathode strips.