Thread: Onyx is working on a color ereader
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Old 04-24-2020, 12:01 PM   #17
pdurrant
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If the underlying greyscale screen is 300ppi and the colour filter is working on a 2x2 pixel, then the colour display should be 150ppi.

A 100ppi colour resolution would imply an underlying greyscale screen of 200ppi.
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