New GM patent uses ultraviolet LED emitters and photocatalytic coating to clean and disinfect touch screens.
Screens are in, buttons are on the way out. Touching said screens inevitably leaves fingerprints at best, germs at worst, leaving the screen looking bad and potentially dangerous—especially in shared vehicles. Science to the rescue! We've covered various schemes to sanitize vehicle interiors by
, but on Valentine's Day, GM was awarded Patent No. US 11,579,340 B2, for a self-cleaning touchscreen that's also self-disinfecting.This system does not rely on the germicidal 254-264-nm UV-C wavelength used to disinfect water supplies, hospitals, airplane interiors, etc. . Instead, ultraviolet illumination from LEDs activates a photocatalytic coating applied to the touchscreen.
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