Abstract: A system for information display, such as for television, employing a panel assembly having electroluminescent properties. First and second elongated conductors are provided on opposite sides of an electroluminescent substrate, both being spaced from a ground plate conductor to define first and second transmission lines therewith. Each conductor is folded upon itself a plurality of times to define spaced, parallel, straight leg portions. Each conductor is divided into eight sections of equal length, each section in turn being divided into two parts of equal length. The adjacent ends of the two parts of each section are coupled by repeating amplifiers. A train of narrow pulses is coupled to one amplifier of the first section of each line, and a gating signal is applied simultaneously to that amplifier so that the pulses are propagated along the first section of each line to the other end where they are reflected in non-inverted form by the second amplifier.

Abstract: A scanning apparatus having a sequential linear array of electroluminescent devices which are controlled to be successively illuminated by having a pulsed electrical signal applied thereto by means of connections between said devices which insure that only one electroluminescent device at a time is illuminated for a predetermined time, which may be relatively short. Further circuitry provides the sequential enablement of a grid matrix having a plurality of horizontal lines and a plurality of vertical lines in overlying relationship which have a video transducer connecting the horizontal and vertical line at each intersection of the grid matrix so formed. All of the horizontal lines are enabled in sequence for each enablement of a vertical line and the vertical lines are enabled in sequence, or vice versa, thereby providing a complete scan of the grid area.