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August 12th, 2010

Nano drives improve displays

Display technology is currently realizing the benefits of nanotechnology in lighting support for the displays and the display construction itself. One of the new display technologies is the Mirasol display from Qualcomm. This MEMS (microelectromechanical-system)-on-glass device targets low-power, daylight-readable color displays for portable-system applications.

In the case of products from Cima NanoTech, the key nanomaterial is nanocrystalline silver. With its high conductive characteristics, silver has been in use as a standard material for more than 100 years. Cima formulates the silver and silver/copper into nanoparticle form and places these particles in suspensions and emulsions that designers can apply to various surfaces. Using self-assembly techniques, these nanoparticles form microscopic conductive networks that are transparent but that have properties similar to those of traditional opaque materials. Designers can apply the nanoparticle layer as a transparent film with an inexpensive, wet-rolling process in a large format, so it can become a low-cost, effective EMI (electromagnetic-interference) filter for plasma and other large displays. Designers can also pattern the material to form large-format resistive-touch-sensor overlays for LCD screens. In a new and growing application, the silver-and-copper particle solution can find use in conductive inks. Designers are able to print these inks on a surface using time-proven ink-jet technology.


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