The Cadillac of flat panel tvs; surface-conduction electron-emitter displays

Surface-conduction electron-emitter displays, or SEDs is a flat panel color television. In a nutshell nanoscopic electron emitters charge color phospors and that produces the picture you see. SEDs combine the best aspects of CRT and LCD TVs into one unit. CRTs are cathode ray tube televisions, who are known for wide viewing angles, fast response time, and high contrast ratios. LCD are liquid crystal display TVs which have the convenience of the flat panel, and the lower cost of energy. With the SED you have the best of both worlds. SEDs are close cousins of a new type of display technology known as FED, which stands for field emission display.

These TVs also offer brighter colors, and higher contrast in colors. The improvements are due to advances in technology. SED TV technology was begun back in the 1980's but development did not truly begin to pick up speed until Cannon and Toshiba decided to work together on the idea in 2004.

CRT TVs an electronic gun powers the cathode ray tube, which is an open-ended vacuum tube. Electrons are boiled off of a metal filament at the end of the electronic gun. This requires a high current and uses a large portion of the power needed to operate the CRT.This accelerates the electrons and focuses them into a fast-moving beam, that then moves forward to the screen. The electrons are guided by electromagnets surrounding the end of the gun, this allows the electrons to be scanned acrossed the screen and to create the image you love.

In SED TVs the single gun of the CRT is replaced by nanoscopic emitters arranged in a grid formation, with one emitter for each sub-pixel of your picture. The SED system consists of a thin gap that the electrons cross when given high voltage gradients.

Every emitter is lined up with a colored phosphor dot, that the electrons strike, this causes it to give off light just as it would in a CRT TV. As each phospor dot has its own emitter there is no need for the steering capabilities of the electric guns in CRT TVs. SED TVs do not require the active matrix of film transistors that LCD TVs use.

With a SED TV the picture is of the highest quality, with high definition of the image. They are thinner and lighter and wall mountable, because they are the best of both worlds.