Surface Plasmons Enable Tunable Color Filters
SINGAPORE, Aug. 30, 2012 — Combining a thin, perforated gold film with a liquid crystal layer makes a tunable, efficient color filter, engineers at A*STAR, the Agency for Science, Technology and Research in Singapore, report. Flat panel displays and many digital devices require thin, efficient and low-cost light emitters. The pixels comprising the various colors on the display are typically wired to complex electronic circuits, but the A*STAR display technology requires a much simpler architecture. "Our color fi...