Contrast Ratio - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 4 Old 01-30-2009, 07:06 PM - Thread Starter
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Hi, have a question about Contrast Ratio like say Sony has 7000:1 and Sumsumg Has 20000:1, what are this difernces mean in terms of quality between this 2 modles? thanks.
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post #2 of 4 Old 01-30-2009, 07:25 PM
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That spec is so inflated it's nearly meaningless. Real world measured performance might only be 10% of that, but it varies widely from one manufacturer to the next.
It's about as bad as a little paperback sized car stereo amp that says it's 1000 watts.
Now if you have 2 Sonys and one is rated 7000:1 and the other is rated 20000:1, then you can surmise that the 20000:1 model will have darker blacks and a more vibrant picture, especially with dark movies or dark shows. But comparing a 7000:1 Sony to a 20000:1 Samsung means absolutely nothing.
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post #3 of 4 Old 01-30-2009, 07:27 PM
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Unless they took the dark measurment with the TV turned off.

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post #4 of 4 Old 01-30-2009, 09:10 PM
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You don't specify what type of contrast ratio measurement those are.

The two most common that you will find are an on/off contrast ratio, and an ANSI contrast ratio. They are very different, and describe contrast performance in very different kinds of situations. They are both crucially important for a high quality image.

Please read this article about contrast ratios:
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