Without an internal light source LCD projection TV is dead. Therefore, for matrices is usually a powerful lamp. Its light passes through each of the three color matrices. Then the image of all three combined system of lenses and projected onto a translucent screen. "Translucent" - a cross between "transparent" and "opaque." This means that light passing through the matrix falls on the inner side, "wrong side" of the screen, and we see the reverse side of Frodo's own persona. All this is true for the rear-projection TVs. In the frontal projection LCD with "box", which brings together all the details of the device does not exist. Independent projection, as in a movie theater, installed behind your back or under the ceiling or on a stand in front and projects the image on a light mounted on a wall panel. Theoretically, the projector can be operated at all without a special screen to any smooth surface, in practice, it is still desirable that the screen. Some are very expensive.
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HDTV 
