What is the difference between rear projection and plazma tvs?
Answer:
Rear projection TV's use LCD technology (Just like a DLP). Light is passed through an LCD Chip and the picture is is focused and reproduced through the flat translucent screen.
Plasma technology uses bubbles of plasma gas between two thin flat sheets of glass or perspex. These cover the entire screen area and are excited by electrical current to glow. This light then passes through a polarising filter to produce the picture that you then see.
Rear projection TV's are a similar depth to CRT, but usually have a large section of extra cabinet below the screen. This houses the projector section. As such most are floor-standing units. As they house a projector, they require bulb replacement from time to time.
Plasma TV's like TFT LCD screens, are usually less than 4 inches thick and so can be wall mounted or sit on a stand like a traditional TV. Neither of them require bulb replacement, as they contain no bulbs.
Both Plasma and TFT LCD screens produce clean crisp pictures, that can be viewed clearly in daylight conditions. Rear projection pictures are slightly less crisp and much harder to view in normal lighting conditions.
Rear projection TVs- do they still make those anymore? Well, that was the 80s version of big screen TV. Many generations old. Splashy, almost water color like pictures. Plasma- crisper than life pictures, high quality, high cost.
about £500 rear projection picture quality not a patch on plasma. lcd is probably the best as they are alot lighter than plasmas therefore easier to move around
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