Abstract: A flat visual display device is disclosed herein and includes a flat face plate having a front face and an opposite back face and electrically positive means on the latter which, as a result of the impingement of the electrons thereon, provides a visual image through the front face of the face plate. The device utilizes an arrangement including cathode means for establishing a uniformly dense space-charge cloud of free electrons within a planar band parallel with and rearward of the back face of the display face plate. Means including an apertured address plate disposed in spaced-apart confronting relationship with the back face of the face plate between the latter and the uniform space-charge cloud acts on the electrons within the cloud in a controlled way so as to cause the electrons acted upon to impinge on specific areas of the electrically positive back face plate means of the display face plate in order to produce a desired image through the face plate's front face.

Abstract: A flat cathode ray tube device is provided for display of information by response to an electron beam of a phosphor coating on a face plate. A monolithic structure includes an x-y matrix of electron source cathodes and a pair of grid arrays successively spaced from the matrix with holes therethrough adjacent to and aligned with the cathodes selectively to form and individually control the intensity of an electron beam from each of said cathodes. Deflection control structure has holes through which the beams may pass with a set of x-y deflection electrodes associated with each of the holes for x-y control of the trajectory of each of the beams. A support plate forms the base of the monolithic structure with the cathodes mounted thereon and a face plate structure marginally sealed to the support plate provides a vacuum tight envelope housing the monolithic structure.

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.

Abstract: A flat cathode ray tube device is provided for display of information by response to an electron beam of a phosphor coating on a face plate. A monolithic structure includes an x-y matrix of electron source cathodes and a pair of grid arrays successively spaced from the matrix with holes therethrough adjacent to and aligned with the cathodes selectively to form and individually control the intensity of an electron beam from each of said cathodes. Deflection control structure has holes through which the beams may pass with a set of x-y deflection electrodes associated with each of the holes for x-y control of the trajectory of each of the beams. A support plate forms the base of the monolithic structure with the cathodes mounted thereon and a face plate structure marginally sealed to the support plate provides a vacuum tight envelope housing the monolithic structure.