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Macbook Air LED Display Panel Has Superb Contrast!

post #1 of 10
2/10/08 at 6:26pm
Thread Starter 
Just checked out the MacBook Air and the contrast ratio on this is outstanding (10:000:1). Played some high-def trailers and I can't even tell when the display was on or off when it showed completely black screens.

I have yet to find a laptop display with contrast ratios as good as this (not even the LED Macbook Pros (500:1) could do this...)
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post #2 of 10
2/10/08 at 6:35pm
Did you buy it?
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post #3 of 10
2/10/08 at 6:48pm
And how is the contrast ratio measured in that case?

I can't think of a LCD screen of any technology that can get even near to a 10,000:1 ANSI contrast ratio. The only flat panel screens that can do that to my knowledge are plasma screens, and I can't recall off hand but I don't even think those match 10,000:1 ANSI contrast.

If contrast is measured from the darkest area of a dark screen(Black Screen, but not off) to the lightest area of a bright screen (White Screen) then contrast ratios can get artificially inflated, and is common practice on LCD monitors these days. But if it is measured between a black pixel and a white pixel of say, a black and white checkerboard pattern, on the screen, than that would be much truer to the ANSI contrast ratio.

Seablade
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post #4 of 10
2/10/08 at 9:55pm
FWIW my Samsung HDTV is supposed to be 15000:1.

Though considering there is no standard way of measuring contrast it could be 15:1 for all I know.
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post #5 of 10
2/10/08 at 10:12pm
Is it a plasma display I assume?

Plasma displays have a completely different technology behind them which essentially shuts off the pixel for a black, but are much worse at doing varied grey levels as a result of the same technology(They have to turn the pixel on and off). But even given that I believe the plasmas still have a bit of problem in bleed to a limited extent IIRC(Thus why a black pixel next to a white pixel might not match the full contrast ratio advertised). Then again I haven't done extensive research into this so I could be very wrong in that regards.

LCDs however are a completely different beast, even LED backlit LCDs.

Seablade
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post #6 of 10
2/11/08 at 9:04pm
If it was a plasma I wouldn't've said anything. It's an LCD.

LNT4665f.

And yes, Plasmas have a problem with bleed but they're still really good at the contrast. Though recent LCDs have gotten to the point where they match and, IIRC, in some places exceed the contrast of Plasma.

LED LCD's especially can do contrast well by turning off parts of the backlight that are in dark areas.
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post #7 of 10
2/12/08 at 12:31am
Quote:
Besides offering full 1080p resolution the LNT4665F also features a 15,000:1 dynamic contrast ratio for rich blacks and subltle tecture display
The key word there is dynamic. In other words, it is the difference between the brightest part of the screen showing all white, and the darkest part of the screen when showing all black.

In other words, you will never get that high a contrast ratio with a single image. In fact you probably won't even come near it(Don't count out a difference of a factor of 10:1 or more). I can't find any numbers that measure it without the dynamic contrast on.

To be honest the first thing I do on a TV these days is turn off dynamic contrast and similar technologies. I find them WAY to distracting when watching movies, and I am not really a videophile I don't think. I would much rather set up some decent settings by hand and not deal with the backlight turning up or down as the video dynamics of a movie kick in.

Seablade
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post #8 of 10
2/12/08 at 7:10pm
These are the settings I use: http://www.avsforum.com/avs-vb/showp...postcount=1500

The dynamic settings on the TV are too blue and saturated for me.
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post #9 of 10
2/12/08 at 8:37pm
Heh is it sad I find it a bit funny when I read posts like that? I don't know, might be the sardonic audio in me...

Ah well I just set it to what looks good to me Regardless I can pretty well guarantee you aren't getting anywhere near 15000:1 or probably even 5000:1 contrast ratio. Not to say it won't look good, just that advertising numbers always have to be taken with a grain of salt...

Speaking of which, where did those numbers for the MacBook Air screen come from anyways?

Seablade
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post #10 of 10
2/13/08 at 9:04pm
Oh, I know I'm not getting 15000:1...especially with those settings. Things are a little too gray to me with those settings sometimes but overall I think they look great. The TV's dynamic settings are incredible looking—beautiful colours DEEP blacks—but overall it just looks too fake and saturated.

This is the first I've heard about the MBA's contrast ratio so I don't have any idea where the numbers came from.
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