High-Definition TV on you Mobile Phone

The process involves the world of microelectromechanical systems (MEMS) and involves lasers and carbon fibers and silicon mirrors for rapidly scanning wide areas with a laser. A projector based on the device would be about the size of dime and could cast a meter wide image on a surface only half a meter away.

The key is a small mirror, about half a millimeter across, suspended by carbon fibers rolled-up sheets of crystalline carbon commonly used to reinforce materials. The fibers amplify the vibrations of a piezoelectric motor, moving the mirror. This movement deflects a laser at different angles, causing it to sweep back and forth across a surface. While the current device only moves the laser side to side, the researchers say it can be easily mounted on a stage that tilts up and down to allow the device to sequentially draw each line of an image, using complex electronics that turn the laser on and off as it is directed across the screen to create the light and dark pixels. A full-color display would mix light from red, green, and blue lasers.

A prototype projector should be ready within a year,with commercial products, developed in three to five years. source:technologyreview