Plasma TV colour banding

Discussion in 'Plasma TVs Forum' started by IanS 01, Mar 23, 2006.

  1. IanS 01

    IanS 01
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    I've just bought a Hitachi 7200 and am very happy with it. The only prob is on non-HD broadcasts, especially lower bandwith Sky, the band line between colours, especially on faces etc, shadowing, is much more noticeable then on my old CRT. Is this a particular 7200 problem or do all plasmas suffer from this due to the digital source quality?
     
  2. g852

    g852
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    All plasmas will show up poor bitrate channels due to the increase in size and internal scaling.
     
  3. Attu

    Attu
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    But some handle it better than others, i used to have an old Hitachi 42-3000 that showed up the banding on low quality channels but my Pioneer 436xde handles them a lot better and you dont notice it at all.

    Andy
     
  4. IanS 01

    IanS 01
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    DVD's show it as well. Maybe thats cos Im currently using an Xbox 360 to play them, and I dont think they are supposed to be the best players.
     
  5. Mep

    Mep
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    they are not bad, but a good dvd player will do a much better job.
     
  6. IanS 01

    IanS 01
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    Are you saying then that the Pioneer does not show any of the band between different colours on faces etc? How can it not, if it is on the original source picture? Surely the better the telly the more it highlights the digital problem, as it will just reproduce better whatever is sent to it, good or bad?

    Is the Hitachi poor in this regard then?
     
  7. g852

    g852
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    The hitachi is very good, as is the pioneer. With any display, feed it a poor signal and you'll see a poor picture.
     
  8. lunddal

    lunddal
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    By processing the image and enhance it:

    "i-CLEAR Drive efficiently uses the performance of new multi bit digital video processors increasing the range of gradation levels, to reproduce the most subtle colour differences.

    Pictures are constantly monitored and analysed in 100Hz mode, and, depending on the video signal information, more gradation steps will be flexibly allocated were required. Especially darker picture areas are enhanced."
     
  9. NonPayingMember

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    My experience is that all plasmas suffer banding, but my lord the Hitachi is deffo one of the worst! Pioneer is actually one of the better screens in this regard. With my Panasonic it's unfortunately there and not planning on going any time soon. My Fuji on the other hand is very good.

    fyi: banding can come about by poor video processing and poor processing within the panel itself addressing the individual pixels on the screen. But it can also come about through poor source material. Better source material will alleviate, a dedicated video processor will also stop any banding being introduced by video processing, but what can't be helped is what the plasma is introducing itself in the panel driving circuitry.
     
  10. usman24

    usman24
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    liam,

    which panny and which fuji screen have you had this experience with?
     
  11. NonPayingMember

    NonPayingMember
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    My Panny is a 42PWD5 and the Fuji a P50XTS40GS
     
  12. usman24

    usman24
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    processing could be miles better than it is in terms of colour banding on the panasonic range if the designers made more effort! . As an experiment I tried 16 bit colour range on my pc's 19" TFT monitor and it introduced obvious banding, I than tried 32 bit colour range and the banding vanished!
     

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