Abstract: A video display system employing a flat display panel of the crossed-grid or X-Y matrix type, signal sampling means, and "write in" and "read out" memory circuits serially connected between the signal sampling means and the display panel, is provided with a novel signal control means connected to the "write in" and "read out" memory circuits whereby the number of lines or leads for distributing signals mainly from the "read out" memory circuits to the display panel is greatly reduced. The sampled signals are digitally coded and transmitted sequentially to the "write in" memory circuits during an effective picture period of a horizontal scanning period.

Abstract: A color video display system employing a flat panel of X-Y matrix type for displaying color pictures thereon and a signal sampling means for sampling input color signals such that sampling phases for different color component signals are sequentially shifted with respect to each other in order to improve the resolution of the reproduced pictures; sampling pulses for neighboring color component signals may be separated by a predetermined interval in order to eliminate or reduce sampling noises from the pictures reproduced on the flat panel.

Abstract: A video display system employs a flat panel of the X-Y matrix type with a brightness control circuit in which both the amplitude and the duration of driving pulses for the display panel are varied in response to variations in the sequentially sampled level of input video signals. In a preferred brightness control circuit, variations in the sequentially sampled level of the input video signals are converted into digitally coded signals which selectively energize respective pulse generators operative to produce pulses of correspondingly weighted durations and amplitudes which overlap in time, and such pulses are combined to provide the amplitude- and width or duration-modulated driving pulses for the display panel.

Abstract: A flat gas discharge panel comprising two opposed glass plates sealed with a space for gas therebetween and having a plurality of first and second electrodes, respectively mounted on opposite plates in a matrix fashion and further including a plurality of parallel insulator ribs which intersect the first electrodes at right angles and further provide physical separation between the glass plates and the adjacent discharge segments. A plurality of parallel barrier electrodes are mounted on one of the plates in alignment with the insulator ribs so as to maintain the glow from an illuminated section isolated from adjacent sections, and at least two different phosphors for emitting different color lights are mounted in the sections at different positions.

Abstract: A video display system employing a flat display panel of X-Y matrix type, signal sampling means, "write in" and "read out" memory circuits serially connected between the signal sampling means and the display panel, and a novel signal control means connected to the "write in" and "read out" memory circuits wherein the number of lines or leads for distributing signals from the "read out" memory circuits to the display panel and the number of memory devices used in the "read out" memory circuits are reduced substantially.