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Where to find Chroma values for a monitor/TV?

Discussion in 'Monitors' started by ImranQ, Nov 14, 2017 at 11:33 AM.

  1. ImranQ

    Associate

    Joined: Jun 28, 2009

    Posts: 30

    Hi All,
    If I am interested in purchasing a tv or monitor where do I find the chroma values? The manuals for most TVs don't seem to have them.
    Thanks,
    iq
     
  2. aatu

    Hitman

    Joined: Apr 6, 2011

    Posts: 698

    Location: Finland

    You mean like chroma subsampling? Practically all monitors use 4:4:4. Whereas most TVs use 4:2:0, but some have 4:4:4. This is because most input/signal sources used with TVs use 4:2:0, as well. So no benefit to provide 4:4:4.

    Or at least ~5 years ago this was the case. Not sure whether 4:4:4 has gained more popularity since then.

    As to where to find them, you indeed need to look upon third-party reviews. http://www.hdtvtest.co.uk/ used to do great reviews, but for a few years now, they've focused on £2000-£5000 sets, so they're not of much use, anymore.
     
  3. ImranQ

    Associate

    Joined: Jun 28, 2009

    Posts: 30

    Thanks @aatu. Do tv manufacturers provide this info?
     
  4. aatu

    Hitman

    Joined: Apr 6, 2011

    Posts: 698

    Location: Finland

    Never seen that info mentioned in manufacturers' spec sheets. >99% of users wouldn't do anything with that sort of info.
     
  5. ImranQ

    Associate

    Joined: Jun 28, 2009

    Posts: 30

    I mean can one phone the pre-sales support to ask for the information?
     
  6. aatu

    Hitman

    Joined: Apr 6, 2011

    Posts: 698

    Location: Finland

    I wouldn't give that much credit on them, to be honest. It's a very niche detail, so you would have to get a hold of someone who is very clued-in about their products. I would think their basic pre-sales support personnel have a list of features that are most commonly asked about, and chroma subsampling most certainly ain't one of them.

    But yes, if they DO happen to have that information at hand, I don't see any reason why they would try to hide it. "4:2:0" is not by any means a flaw in a TV, it is perfectly acceptable for what a TV is designed to do, so there is no shame in telling it.
     
  7. ImranQ

    Associate

    Joined: Jun 28, 2009

    Posts: 30

    Thank-you for replying and for the information you provided.
     


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