Three

LED Circuits

1. A High-Resolution LED Display

A thin, high-resolution, two-dimensional display with X-Y addressability would have many applications in such fields as television, oscilloscopes, electronic games, micro-computer displays and alphanumeric and graphic data displays for pocket calculators and data loggers.

Experimental flat-screen displays have been made based on gaseous discharge, electrofluorescence, light-emitting diodes and liquid crystal technologies. The liquid crystal method appears to offer the greatest economy and certainly the thinnest configuration, but this display medium cannot yet change states fast enough for television applications.

The technology needed to build large-area LED displays has been available for ...

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