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Diese neue Technologie könnten die vom Nutzer berührten Stellen schon während der Eingabe desinfizieren. Microsofts Patent beschreibt eine oder mehrere UV-Lichtquellen an den Rändern eines den Touchscreen bedeckenden oder in ihn integrierten Dünnfilmmaterials. Das UV-Licht wird innerhalb der Dünnfilmschicht reflektiert und tritt erst bei Berührung an den Kontaktpunkten aus.
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