What is the rear projection TV?
Rear projection TV (RPTV) was widely available as the first consumer, affordable large screen television at the age of 80. RPTV is a TV type that uses technology that internally projects the displayed image from the back of the unit to the back of the display. There are four types of rear projection TV: cathode tube (CRT), digital light processing (DLP), liquid crystal for silicon (LCOS) and liquid crystal display (LCD). LCD technology is also used to produce a flat screen with a flat screen or models of unrealistic projections.
At first glance, it is easy to recognize the difference between the rear projection TV and the plasma or LCD by flat panels. The flat panels are several centimeters strong, easily mounted on the wall. RPTVs have an electronics located in the lower rear of the set, where the units could measure about 14 inches (35.5 cm) or more deep. However, the rear projection television is not as deep as the traditional TVs and has a significant advantage over them in terms of completeScreen size.
CRT RPTV was largely replaced by microdisplays . The rear projection of Microdisplay DLP and LCD are market popular, along with newer LCOS HDTV, which is a hybrid of two other technologies. If the wall holder is not required, the rear projection TV is a cheaper alternative alternative to LCD in plasma and flat panel. Savings become exponential in sizes larger than 55 inches (140 cm).
LCD Rear projection is the oldest design of microdisplay. DLP is a newer but very close LCD, although it is able to produce excellent blacks for better contrast. Both traditionally use a white lamp and a colorful wheel. For models that contain a single digital micromirror device (DMD) , some people report a fleeting "rainbow effect" in moving objects. Newer models that use LED light instead of white lamp, this problem does not even have models with moreE chips dmd.
LCOS is the latest rear project TV Technology. It is also called the names of D-ILA (direct drive light image amplifier) and SXRD (Silicon X-Tal reflective display). LCOS boasts a shallow physical profile, excellent blacks and gray, which are probably better than DLP, and a separate DMD chip for each primary color, eliminating the potential rainbow effect.
Some LCDs with flat panel and plasma TVs have the effect of the "screen door" created by individual pixels that form a picture, especially if they are considered too close. This may also be evident if the insufficient internal converter performs poor work when displaying a broadcast signal that differs from the native resolution of the set. The rear projection TV creates Smooth picture precisely because the screen is projected on the screen.
Rear projection TV requires lamp replacement every 3,000 hours, but unlike the backlight of flat panels LCDs are these LAMYP relatively cheap and installed users. If you are looking for delivery of HDTV 50 inches (127 cm) or larger, the rear projection TV could just come in handy.