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1 jan 1977 ano - LED (Light-Emitting Diodes) Monitors

Descrição:

The first true all-LED flat panel television screen was possibly developed, demonstrated and documented by James P. Mitchell in 1977.

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ByСабина Коваленко-Лозда

2 out 2018

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1 jan 1977 ano

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~ 48 years ago

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