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Future TV screens seen in coffee stains

Future TV screens seen in coffee stains

作者:聂熨旷  时间:2019-03-14 09:14:00  人气:

By Anil Ananthaswamy THE rings left behind by spilled coffee have inspired a new way to make ultrathin coatings for LCD and plasma flat-screens. In LCDs, transparent conductive coatings are used to form an electrode on the surface of the screen, while in plasma TVs they provide a shield that prevents electromagnetic fields from straying. The traditional techniques for making such coatings include sputtering a fine layer of indium tin oxide onto the surface. ITO is highly conductive and transparent to visible light, but the process is expensive,