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Which HD TV to buy, plasma, LCD or DLP

Discussion in 'Electronic Repair' started by Ziggie, Oct 16, 2005.

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  1. Ziggie

    Ziggie Guest

    I would like some input on the new tvs on the market, in 40 to 60 inch
    picture size,
    -picture quality
    -projected life of a set
    -problems, lamps, burn ins etc
    -power consumption, (I've seen 42" plasma rated at something like 385 Watts)
    -other things to consider

  2. James Sweet

    James Sweet Guest

    Plasma is very prone to burn-in, the others are virtually immune. LCD has
    the lowest power consumption, DLP has expensive lamps, neither of those look
    as good to me as plasma but if I were buying one I'd lean towards a DLP
    projector or an LCD set due to the burn issue, though sky gradients always
    seem to show banding. Look at some of them in stores to get an idea of the
    picture quality.
  3. Ray

    Ray Guest

    Plasma is very prone to burn-in, the others are virtually immune. LCD has
    The acid test is to watch a black and white movie on a DLP projector. If
    the rainbow effect doesn't bother you (some people are -really- sensitive to the
    flicker), they otherwise look pretty good and the better projectors will display
    anything you feed them... computer, 4X3, 16X9, HD, whatever. That's one big
    advantage over fixed screen devices... no "letterbox" bars to deal with. As
    stated, the pricy lamps are the big drawback. Most offer 2000 hours before
    replacement at about $500 for a lamp.
    A few years back I worked on an LCD projector that used two ten dollar
    transparency projector bulbs with a changeover switch just like an overhead
    projo. Flash in the pan. I'd would have bought one of those if the pixels had
    not been as big as fire hoses. On the other hand, the LCD projectors are
    catching up to DLP with ever better contrast ratio. They look pretty good too...
    and no rainbows. Shop around, ask questions, then sit down and watch for awhile
    before you decide anything.

  4. Comments and corrections imbedded...

    This very much depends on the specific model. No reason to expect that DLP
    is different from LCD, DILA, SXRD or LCOS sets.
    Letterboxing and pillarboxing have nothing to do with the type of display
    technology. It has everything to do with the source material and the
    specific capabilities of the model in question to display it properly.
    Most current lamps are rated for between 2000 and 8000 hours and average
    more like $300.
    The latest DLP sets are pretty close to CRTs in blacks, LCDs are still and
    always will be poorer in this regard because it is a transmissive rather
    than a reflective technology. The latest DLP sets have all but made
    invisible the matrix, while with LCDs the "screen door" is clearly visible
    if viewed from too close. Newer DLPs have reduced the rainbow effect
    considerably over early units.

    Overall, DLP has lots of advantages and you will never have burned panels or
    filters like an LCD. There are some LCDs that perform very well and are
    good values, but most of the advantages in the best sets these days goes to

  5. James Sweet

    James Sweet Guest

    Depends on how you look at it, if you want to display both 4:3 and 16:9
    material and you do it with a fixed screen such as a CRT, LCD, plasma, or
    rear projector you'll have letterbox bands, there's just no way around that
    other than squishing or stretching which always looks weird to me. When you
    have a projector the size and aspect ratio of the screen depends on what you
    point it at. Sure the physical number of pixels doesn't change but it's a
    lot more pleasing to the eye, at least to me.
  6. Guest

    The lamp issue isn't even $300 bad. I just checked my Samsung HLN507W,
    22 months old, 3436 hrs on the original lamp. After a friends lamp died
    last spring, I bought one on eBay for $124 total. ATI hdtv wonder/9600
    pro linked DVI as a tivo like recorder and the Samsung TS165 HDTV
    receiver, Winegard SquareShooter in the LA area. Great pictures.

    Plasmas look good but are power hungry. The 3 Panasonics at work peak
    out at almost 700 watts each. At $0.15/KWH in LA thats $0.105/hour--
    plus the extra A/C in summer. The DLP runs around 200 watts.

    LCD flat panels have uniformity issues though the projection LCDs look
    pretty even.

    Glenn Gundlach
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