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1 janv. 1977 - LED (Light-Emitting Diodes) Monitors

Description:

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 oct. 2018

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1 janv. 1977

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~ Il y a 48 ans

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