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Why aren't there more glow in the dark keyboards for a more passive form of keyboard backlighting? (leminal.space)

submitted 3 weeks ago by CorrodedCranium@leminal.space to c/nostupidquestions@lemmy.ml

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Is it because the glow would fade after a year or two? Even if it's not cost effective compared to adding to LEDs I thought it would be a novelty thing.

I did a quick search online and it doesn't seem very common. Mostly keyboard covers.

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[–] Flocklesscrow@lemm.ee 2 points 3 weeks ago* (last edited 3 weeks ago)

This is the same principle behind phosphorescent rocks. UV light "excites" them, and for a time, they release that energy as visible light (luminescence). When they calm down again, incognito.