Accession Number : ADD000149

Title :   Intensity Control for Light-Emitting Diode Display.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Delay,Dennis G

Report Date : 22 Jan 1974

Pagination or Media Count : 9

Abstract : The patent relates to a plurality of light-emitting diode elements which are unmatched in light output at the lower portions of their forward current ranges and which form an integrated illuminated visual display. They are activated by a power supply arrangement which applies to each diode element a series of independent power pulses of sufficient power to activate each diode element to saturation and into light-emitting condition in a frequency range which appears to the human eye to be steady illumination.

Descriptors :   *Display systems, *Light emitting diodes, *Patents, Intensity, Control

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE