Ntera electrochromic displays
Tuesday, March 1st, 2005This article by IDTechEX on low-cost display technologies talks about Ntera’s NanoChromic Display (NCD):
At the heart of this NCD is an electrochromic material, which is normally transparent but turns blue when a negative charge is applied. It requires no moving parts, making NCDs unique among other electronic paper technologies, such as electrophoretic displays. […]
In Ntera’s display, an array of transparent electrodes made of metal oxide semiconductor, mounted on a transparent film, allows it to produce images with a resolution of about 0.25 millimeters or 100 dots per inch. Adding an opaque white layer of titanium dioxide behind the electrochromic layer creates a white background to the monochromatic images that makes them more readable. The company is also planning eventually to develop a colour display.