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In 1926, TV Was Mechanical
(spectrum.ieee.org)
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this post was submitted on 18 Sep 2024
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It still is.
Yep, DLP still uses a mechanical color wheel. https://en.wikipedia.org/wiki/Digital_light_processing?wprov=sfla1
Much to the chagrin of those of us who can see and are bothered by the colour flicker.
Had a color wheel in a DLP TV explode on me. Fairly easy to replace but it was a pain to clean out all the glass.