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who found L E D computers ?
LED flat panel television screen was developed, demonstrated and documented by J. P. Mitchell in 1977.
The modular, scalable display was initially designed with hundreds of MV50 LED's and a newly available
TTL memory addressing circuit from National Semiconductor. The technical display received awards
and recognition Awards included NASA, General Motors Corporation, and recognition from faculty and
area Universities and the IEEE.The monochromatic LED prototype remains operational. An LCD(liquid
crystal display) matrix design was also cited in the LED paper as an alternative x-y scan technology and
as a future alternate television display method. The replacement of the 70 year+ high-voltage analog
system (cathode-ray tube technology) with a digital x-y scan system has been significant. Displacement of
the electromagnetic scan systems included the removal of inductive deflection, electron beam and color
convergence circuits. The digital x-y scan system has helped the modern television to “collapse” into its
current thin form factor.


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