Computer and Technology

Today, there are almost as many kinds of television sets are there are channels to watch on them. Cathode ray, plasma, liquid crystal display, digital, analog, rear projection, high definition and the many more types that are available to choose from; you can even multiply some of those types by other types because they combine to form just the set that you want. For instance, an LCD projection television combines that of liquid crystal display with projection and big screen.

Projection TV

You are most likely used to projection technology because you are used to motion pictures, as the screen works the same in both technologies. It receives the picture being projected by a light and allows the picture to be viewed by the human eye.

Movies are projected from a picture on a piece of film, and the movement here occurs because the film moves from one reel to another very quickly while the projector focuses on a single picture at a time. Since each frame of film shows a slightly different picture, the eye is tricked into translating it into motion.

An LCD projection television works differently, however, as the image being projected is not a complete picture presented in front of the projector. Rather, the image is being received through an antenna, cable or satellite at the rate of one line of resolution at a time, and motion is imitated by the rapid resending of lines, making a constantly changing picture that is understood by the viewer’s brain as a moving picture.

Front or Rear

A television picture can be projected from the front of the screen or from the rear. For instance, an LCD projection television is made up of a separate receiver or projector unit and screen, and the projector can be mounted on a table or ceiling and directed to a special screen that will show the image at its best. This is similar to a movie theater set up.

A rear projection television is a single unit with the projector contained behind the screen. An LCD projection television would receive a small, sharp television picture and the projector will enlarge it to fit the screen. This is similar to the old cathode ray TVs, which projected a television image on the back of the screen. The size of today’s projection TVs start where the analog TV screens end.

Either front or rear, the modern technology of an LCD projection television provides picture and sound quality that is superior while making a really large screen viewing experience possible.