Sharp Develops “Moth Eye” Filter to Reduce LCD Screen Reflections

Sharp Corporation says it has a solution for reflected light that distorts images displayed on large screens: a “moth eye” filter used on LCD to minimize screen reflection. The technology was showcased at CEATEC, Japan’s largest consumer electronics show

Sharp Corporation says it has a solution for reflected light that distorts images displayed on large screens: a “moth eye” filter used on LCD to minimize screen reflection. The technology was showcased at CEATEC, Japan’s largest consumer electronics show.
Reflections caused by sun and indoor lights have become increasingly problematic as TV displays become larger and larger. Sharp is working to reduce these reflections by applying a coating to its LCD panels based on technology similar to the nanostructure of a moth’s eyes. Moth eyes have a special property that eliminates reflection. The surface of a moth’s eyes is covered with bumps and valleys that absorb oncoming light, enhancing their night vision. Leveraging its own nanostructure technology, Philips has already developed a moth-eye filter for its 36-inch 3-D TV. The Dutch company says the technique deepens the blackness of dark tones while increasing the lightness of bright elements. This is accomplished without disturbing halos or reflections.

Unlike conventional anti-reflection technology, Sharp’s claimed its new LCD offers more vivid color images and higher contrast. It demonstrated 80, 70, and 60-inch moth eye panels at CEATEC based on its Aquos large-screen TVs. Sharp said its panel technology is ready for deployment in commercial products for indoor use.  However, it still needs to be optimized for outdoor displays, a spokesman said.