Does your Sony LCD tv do this?

Discussion in 'Displays' started by ericJed, Aug 13, 2006.

  1. ericJed

    ericJed Agent

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    I have a Sony 50 inch LCD rear projection tv. Model number kdfe 50A10.
    I am seeing something odd and I was wondering if ALL LCD t.v's do this or not.
    What I am seeing is pixeling in the color ,not the signal but the color of back grounds .Like in baseball,football the green of the grass look almost like its pixeling. In a tv show or movie the color of the wall behind a person will do it to.Again, its not the hole picture doing it just colors in the back ground.
    Any thoughts?
    The TV is 3 months old.
     
  2. ChrisWiggles

    ChrisWiggles Producer

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    can you describe "pixeling" more?

    Are you seeing macroblocks?

    Do you see this on all sources, or only on some? Is it visible on high entropy images/fast motion stuff or all the time?
     
  3. ericJed

    ericJed Agent

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    Yes on all inputs. I see it all the time. Also I see a swarling effect in the picture too.
    What is microblocks?
     
  4. craig_curtis

    craig_curtis Stunt Coordinator

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    sounds like screen door effect to me. I have the 42 inch version of the same tv, and occasionally see it as well - especially in areas of solid color or if I'm sitting too close to the tv. Its one of the reasons some people don't get LCD rear-pro tv's
     
  5. ChrisWiggles

    ChrisWiggles Producer

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    marco blocks are larger compression blocks that can appear if the source is bit-rate starved.

    However, I would have to agree with the last poster, it sounds more like screen door effect than macroblocks. Throw up a white test pattern, do you still see the effect of pixels? If so, it just sounds like you're seeing the pixel grid. Nothing to do about that besides sit farther away from the display or buy a display that supports closer viewing ratios.
     
  6. Allan Jayne

    Allan Jayne Cinematographer

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    Seems like "mosquito noise", a fine grained dithering which is found in a lot of HDTV programming and some DVD programming, a consequence of signal compression. It is more noticeable in solid color patches.

    Video hints:
    http://members.aol.com/ajaynejr/video.htm
     

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