GALLIUM-PHOSPHIDE LIGHT-EMITTING DIODE ARRAY.
Abstract
The object of the research is the design and fabrication of a versatile experimental display module incorporating an array of 60 gallium-phosphide diodes as light-emitting elements. This effort includes the associated control circuitry for accessing, latching, and providing the necessary input waveforms and impulses for X-grid and Y-grid access. This report covers the work accomplished towards the development of an experimental display module using red-light-emitting gallium-phosphide diodes. Both analog and digital X - Y scanning circuits were breadboard tested. Techniques for measuring the light output and for selecting diodes for high-density arrays were also developed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1967
- Accession Number
- AD0661092
Entities
People
- Henry C. Farrell
- Robert J. Lynch
Organizations
- International Business Machines Corporation (Armonk, NY)