SED-Displays Technology
Surface-conduction electron-emitter display

The conventional cathode-ray tube(CRT) used in televisions is popular around the world because it has the advantage of using the properties of a self-luminous display to ensure a high luminance, clear colors and wide viewing angle. When this technology is applied to a large screen display, however, the television becomes excessively heavy and requires a much deeper unit.
The SED solves these problems using a glass substrate with an electron emitters, equivalent to the electron gun in the CRT, arranged to correspond to the number of pixels, and a second glass substrate coated with a fluorescent substance. These two glass substrates are brought close together, and the space between them is vacuum sealed. This allows for a thin construction that does not require the conventional electron beam deflection required in the CRT, while still allowing for crisp, clean color and movement display using a light emission principle similar to the CRT.

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