What are these weird waves of colour?

Discussion in 'OLED TVs Forum' started by thewoe2, Jan 2, 2017.

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  1. thewoe2

    thewoe2
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    Hey guys, its probably a nooby question, but i notice this quite often in games and sometimes on the odd bluray here and there, what exactly are they?

    [​IMG]
     
  2. BritneysBeers

    BritneysBeers
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    The banding is caused by the background trying to show, say, 100 different shades of blue when only, say, 16 are available. Typically it's static content that's been overly compressed when it was made, to make the background files small or simply designed by someone that doesn't appreciate finesse. The proper term for this is quantization. It annoys me that modern apps have banded start up logos or backgrounds that look like they've been drawn with 4 shades of crayon. It doesn't set a good first impression. The fact you mention it means you think something is wrong and you're not entirely satisfied with your visual experience. I don't blame you. Given how much us consumers are spending on elevated standards of visual perfection surely it's not asking too much to be served a fine meal on our plush expensive table. Rant over. Happy New Year!
     
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  3. thewoe2

    thewoe2
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    Ty for the reply :)

    So this is not a panel problem then? its purely the content creators fault?
     
  4. BritneysBeers

    BritneysBeers
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    No problem. And correct. Though to be sure search for "4k color gradient test" and use those images to check. All the colour bands should go up in small equal steps or be a smooth gradient, depending on how they were made. Some of them have been saved with high jpeg compression, so use the nice ones;)
     
  5. sahajesh

    sahajesh
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    Surely whoever saves a high jpeg compression gradient test is missing the point? They ought to be shot at dawn! [emoji3]
     
  6. paulrw

    paulrw
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    I get this on the web os amazon start up screen with black background, doesn't look good.
     

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