Why is one HD2+ DLP TV better than another?

Discussion in 'General TV Discussions Forum' started by zAndy1, Mar 13, 2005.

  1. zAndy1

    zAndy1
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    I'm struggling to understand why one DLP tv with the HD2+ chip would apparently perform so much better than another. I mean at the end of the day we have a lamp, the HD2+ chip, the colour wheel and the screen, surely pretty much all of those are common to all the HD2+ DLP TVs? What is it that makes one perform so much worse e.g. with the Sagem HD-D45 the contouring and breaking up of the picture on pans, what's the cause? I'm sure this problem or something very similar also affected the Optoma H77 projector and just thought it was a DLP thing to be honest.

    Cheers,
    Andy.
     
  2. Razor

    Razor
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    Hi Andy,

    There a are few factors that improve on the picture quality,

    Bulb
    Lenes
    Distance from the lens to the screen
    Screen type, (filtering properties)
    Software to tweak the performance (it's a bit like an upgrade or patch on a pc)
    Basic quality of components used

    As you can see there are a number of variables to the end product the HD2/HD2+ chip is only a small part of the total system. The infocus/thomson 50 & 61' DLP sets suffers from a narrow viewing angle due to its slim design (8-9' deep). I believe you are suffering with the HD45's frosted screen. etc....
     
  3. TonyA

    TonyA
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    Many manufacturers also use their own image enhancement technologies, to smooth out a picture, remove digital noise etc...

    This can be a big factor in PQ between different manufacturers.
     
  4. mrmoo

    mrmoo
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    I read here that a certain set was inferior to a more expensive set which was highly rated. I tried them against each other on the same day and I could find little difference. Mostly in signal processing, depth of field, resolution, artifacts pretty much all the same. So to be honest I take all the PQ comments with a pinch of salt until I've seen the set running with my own eyes and a good source. Then I'll decide if I like the picture or not.
     
  5. hifiboom

    hifiboom
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    lets say it like this: if you see no difference between the different models, just take the cheapest and be happy with uyour purchase.

    But if you see the differences between the different sets, i`ll recommend to take the one you like best......

    At the end the last component will be your eyes, and if these fail you won`t even see a difference between you girlfriend and your mother. hehe
     
  6. Razor

    Razor
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    Hi Mrmoo, which sets?
     
  7. mrmoo

    mrmoo
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    With all due respect I'm not getting into that one again, its been done to death.

    I think Hifi is right buy the one that "your" eyes like best. It’s all too easy to jump to conclusions from comments posted by well meaning, but ultimately subjective owners
     
  8. St_ve

    St_ve
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    I think after the DLP mirror array used ie HD3 HD2 HD2+ the screen probably is the most important thing i have read that they can cost between £150 to a £1000
    The processor used to scale the picture up to 1280x720
    How many segments on the colour wheel & colour of any extra segments
    The speed of the colour wheel
    The Bulb used
    How the set is set up & tweaked
    Thats all i can think of bound to have missed something out.
     
  9. zAndy1

    zAndy1
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    Well I can tell you my eyes didn't like the HD-D45 much last night. Watched an episode of 24 on it and my eyes were stinging after watching it, really uncomfortable. I've noticed this during any extended viewing really of the Sagem to be honest. Just hope they like the Samsung more!

    Cheers,
    Andy.
     
  10. kourosh

    kourosh
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    funny u should mention 24 last night andy i have the tosh and usually the the picture is pretty good cause i watch 24 every week but last night the pic quality wasnt brill the faces on people where really patchy and colours not to good :eek:
     
  11. Razor

    Razor
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    Has anyone seen 24 in HD? Its availible on a 700meg download. :) They are up to episode 13 in the US. I love the show, wish it was on every day. :thumbsup:
     

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