Monolythic staggered mesh deflection systems for use in flat matrix CRT's
First Claim
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1. In a flat cathode ray tube device for display of information by response to an electron beam of a phosphor coating on a face plate, the combination which comprises:
- a monolythic system structure includinga. an x-y matrix of electron source cathodes,b. a pair of grid arrays successively spaced from said matrix with holes therethrough adjacent to and aligned with said cathodes selectively to form and individually control the intensity of an electron beam from each of said cathodes, andc. deflection control structure consisting of a plurality of sheets electrically isolated from each other having rectangular holes therein through which said beams may pass, with alternative ones of said sheets connected for x-y deflection control of the trajectory of each of said beams.
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Abstract
A flat cathode ray tube device is provided with a monolythic structure for x-y control of a matrix of electron beams. A sandwiched deflection control structure has holes through which the beams may pass and forms a set of x-y control of the trajectory of the beams. A plurality of like mesh plates make up the control structure with offset shield provisions therein in the region of the path of each of said beams.
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Citations
18 Claims
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1. In a flat cathode ray tube device for display of information by response to an electron beam of a phosphor coating on a face plate, the combination which comprises:
a monolythic system structure including a. an x-y matrix of electron source cathodes, b. a pair of grid arrays successively spaced from said matrix with holes therethrough adjacent to and aligned with said cathodes selectively to form and individually control the intensity of an electron beam from each of said cathodes, and c. deflection control structure consisting of a plurality of sheets electrically isolated from each other having rectangular holes therein through which said beams may pass, with alternative ones of said sheets connected for x-y deflection control of the trajectory of each of said beams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A monolythic structure for forming and controlling multiple electron beams for producing an information display which comprises:
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a. an x-y matrix of electron sources located in a common plane and supported on a base plate, b. a first array of control electrodes wherein each electrode spans a row of said sources in said first matrix with holes therein registering with the said sources and located adjacent to the plane of said sources, c. a second array of accelerator electrodes wherein each accelerator electrode spans a column of said sources in said matrix with holes registering with said sources and located adjacent to said first array, d. a uni-potential conductive drift space layer having holes registering with holes in said second array and located adjacent to the plane of said second array, e. a beam deflection structure consisting of a plurality of sheets electrically isolated from each other adjacent said drift space layer having rectangular holes registering with holes in said drift space layer with alternative ones of said sheets connected for x-y deflection control of the trajectory of the beams passing through the holes, each of the holes having a flange on the side of the hole adjacent to the trajectory of the beams, and f. a face plate spaced from said insulating member constructed for response to electron bombardment to produce visible reaction to said electron beams. - View Dependent Claims (16, 17, 18)
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Specification