Canon has announced plans to launch TVs based on a new flat-panel display technology called SED (Surface-Conduction Electron-Emitter Display).The SED technology is based on the same technology traditional cathode ray tube TVs use. Just as CRT technology is based on the targeted emission of electrons from the back of a long vacuum tube against a phosphor-based fluorescent layer in a glass surface, so does SED. However, SED technology has miniaturized those vacuum tubes & crams thousands of them inside a flat panel display about 4-5 inches thick. Using as many electron emitters as there are pixels on the screen, SED technology can create HDTV video quality with all the benefits of a CRT display without the hulking CRT size. Canon also says its future SED TVs more accurately render colours & will be more affordable & last longer than either LCD or plasma sets.
