"dynamic" contrast-ratio???

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skingus

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#1 skingus
Member since 2006 • 2370 Posts
What does "dynamic" contrast-ratio mean? Is this just some BS sale point?
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Makari

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#2 Makari
Member since 2003 • 15250 Posts
Instead of using the normal darkest vs. lightest contrast ratio, parts of the screen will dim vs. other parts that will still light up at full power, sort of inflating the lighting difference.
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nexusprime

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#3 nexusprime
Member since 2004 • 877 Posts

Contrast ratios on a whole has be come a bit of a BS sale point. There are various differnt ways the industry uses to measure contrast ratio but the 2 used most are the Full on/off contrast test and the ANSI contrast test. Full on/off yeilds much higer results and as such is the touted stat on the packaging. Surely 15000[full on/off] is better than 2000[ANSI] right? Well unless your gonna watch that TV in complete darkness there wont be a difference between 10,000:1 and 500:1.

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DopeyDavoid

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#4 DopeyDavoid
Member since 2004 • 5375 Posts

nexusprime

You'd be surprised. i have quite a lot of lcd screens with different contrast ratios and the higher ones definetly look a lot better.

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skingus

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#5 skingus
Member since 2006 • 2370 Posts
[QUOTE="nexusprime"]

DopeyDavoid

You'd be surprised. i have quite a lot of lcd screens with different contrast ratios and the higher ones definetly look a lot better.

This is definitely true, but when i was in a showroom today for instance, one tv would say 15000:1 contrast ratio, and another would say something like 50000:1 dynamic contrast ratio. I want to know what "dynamic" means, or is 50000 dynamic "really" mean 5000 non-dynamic. is this just bs? The tv's i saw with a Dynamic ratio did look good, but still???

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SSJBen

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#6 SSJBen
Member since 2003 • 7071 Posts

"Dynamic" contrast ratio as said is a form of technology where the TV dims some part of an image according to the darkest and lightest part of the entire image. It helps as whole to achive a "higher" contrast ratio and is a good feature under a brightly lit room.

Static contrast ratio are the TV's original and native contrast. LCDs and Plasmas has not reach the factor where they can produce 50,000 : 1 native contrast ratio yet.

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the1stmoonfly

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#7 the1stmoonfly
Member since 2006 • 3293 Posts
It is used as a seling point, and it isnt the final word in good quality pictures, but simply put more is better.
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saintsiknis

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#8 saintsiknis
Member since 2003 • 25 Posts

"Dynamic" contrast ratio as said is a form of technology where the TV dims some part of an image according to the darkest and lightest part of the entire image. It helps as whole to achive a "higher" contrast ratio and is a good feature under a brightly lit room.

Static contrast ratio are the TV's original and native contrast. LCDs and Plasmas has not reach the factor where they can produce 50,000 : 1 native contrast ratio yet.

SSJBen
you are incorrect my friend. my samsung ln-4081 is 100,000:1 native and 500,000: dynamic contrast ratio
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DopeyDavoid

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#9 DopeyDavoid
Member since 2004 • 5375 Posts

=o

I see what "dynamic" contrast ratios are now, i thought you were just refering to the colour setting mode on the tv =P.

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the1stmoonfly

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#10 the1stmoonfly
Member since 2006 • 3293 Posts
[QUOTE="SSJBen"]

"Dynamic" contrast ratio as said is a form of technology where the TV dims some part of an image according to the darkest and lightest part of the entire image. It helps as whole to achive a "higher" contrast ratio and is a good feature under a brightly lit room.

Static contrast ratio are the TV's original and native contrast. LCDs and Plasmas has not reach the factor where they can produce 50,000 : 1 native contrast ratio yet.

saintsiknis
you are incorrect my friend. my samsung ln-4081 is 100,000:1 native and 500,000: dynamic contrast ratio

I doubt our correct, the top of the range panasonic plasmas are better than anything Samsung produce. The latest panels are 1,000,000:1 dynamic, which gives out 30,000:1 native. Ive only seen Pioneer beats this.
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Makari

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#11 Makari
Member since 2003 • 15250 Posts
[QUOTE="saintsiknis"][QUOTE="SSJBen"]

"Dynamic" contrast ratio as said is a form of technology where the TV dims some part of an image according to the darkest and lightest part of the entire image. It helps as whole to achive a "higher" contrast ratio and is a good feature under a brightly lit room.

Static contrast ratio are the TV's original and native contrast. LCDs and Plasmas has not reach the factor where they can produce 50,000 : 1 native contrast ratio yet.

the1stmoonfly
you are incorrect my friend. my samsung ln-4081 is 100,000:1 native and 500,000: dynamic contrast ratio

I doubt our correct, the top of the range panasonic plasmas are better than anything Samsung produce. The latest panels are 1,000,000:1 dynamic, which gives out 30,000:1 native. Ive only seen Pioneer beats this.

again, the manufacturers are free to say whatever they want on those numbers. they have to at least be believable, but they can round and guesstimate to their heart's content on how it would work under conditions that nobody actually views their screens in.
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Chutebox

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#12 Chutebox
Member since 2007 • 51599 Posts
If you want to burn your eyes, make sure to watch your television on dynamic mode.
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blackacidevl

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#13 blackacidevl
Member since 2003 • 172 Posts
Complete selling point, they mean nothing. Each brand has their own means of rating the tv, and non can really be compared to another brand, its best to ignore them and just watch the tv .
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#14 billyforde
Member since 2005 • 596 Posts
[QUOTE="SSJBen"]

"Dynamic" contrast ratio as said is a form of technology where the TV dims some part of an image according to the darkest and lightest part of the entire image. It helps as whole to achive a "higher" contrast ratio and is a good feature under a brightly lit room.

Static contrast ratio are the TV's original and native contrast. LCDs and Plasmas has not reach the factor where they can produce 50,000 : 1 native contrast ratio yet.

saintsiknis
you are incorrect my friend. my samsung ln-4081 is 100,000:1 native and 500,000: dynamic contrast ratio

That tv is an LED backlit model so its touted contrast ratios should be taken with a giant grain of salt. Any Plasma with a contrast ratio of better than 10000:1 will have superior blacks to it.