Display Spec question....

E

elazarus

Limp Gawd
Joined
Jan 1, 2007
Messages
162
I have seen some top-end 24" Monitor Specs that confuse me a bit and before I put down $1000+ I am hoping someone can clear things up.

In looking at the NEX 2490WUXi I see the Contrast Ratio 800:1 and Brightness 400 Nit

Yet on the Eizo 2411 I see Brightness 450 cd/m2 and Contrast Ratio 1000:1 Dynamic Contrast;


I know that many manufacturers fudge a bit on the numbers but isn't the 450/1000 much better than the 400/800???

What is the major difference between these 2 sets of numbers...

Thank you

Elliot
 
the numbers are exactly what they tell you.
Slightly better contrast and brightness for the EIZO.
but the big difference is the type of panel used:
NEC = IPS
EIZO = PVA
you might want to use the search function for more information
 
elazarus said:
I have seen some top-end 24" Monitor Specs that confuse me a bit and before I put down $1000+ I am hoping someone can clear things up.

In looking at the NEX 2490WUXi I see the Contrast Ratio 800:1 and Brightness 400 Nit

Yet on the Eizo 2411 I see Brightness 450 cd/m2 and Contrast Ratio 1000:1 Dynamic Contrast;


I know that many manufacturers fudge a bit on the numbers but isn't the 450/1000 much better than the 400/800???

What is the major difference between these 2 sets of numbers...

Thank you

Elliot
Click to expand...

Like Benny said, the major difference is the panel type, not contrast/brightness specs. Unless you work in a bright office enviroment, both screens would have a too high brightness. On tv's where you sit further away its more important to have a retina burning brightness.

Contrast is a bit hyped spec as well. I have a feeling many don't have the foggiest idea of what it means even.

Contrast is simply brightness / black. If you have 450 cd/m2 in brightness and a contrast of 1000:1, you'll have a black of 0,45 (450/1000=0,45 cd/m2). 450 cd/m2 / 0,45 cd/m2 = 1000:1 in contrast. It doesn't mean you have 1000 steps of black or anything similar. An 8-bit screen only have 256 levels of grey. Contrast is only a matematical expression of measured brightness / measured black.

If you venture into the top model sections of Eizo and look at the flagship CG221, you'll notice that contrast is only 400:1. This doesn't mean that the PQ of the CG221 is only half as good as the 2411 ...

Then you have the optical contrast as well. The S-PVA's suffer a bit here, because they have a black crush in the center with loss of black level detail while having deeper black. On the sides, the black level detail is better, but black suffers due to poor image consistency.
http://www.hardforum.com/showpost.php?p=1031371458&postcount=58

So, though the 2411 is capable of deeper black, it would still suffer when it comes to the quality of black (read black level detail). Color accuracy is already warped on the 2411, since no calibrator takes the warping of the image due to the viewing angle issues of the S-PVA into account. You can get it correct or close enough 2 mm from the display, but when light reaches your eyes, the calibration is already inaccurate. TN's are even more stable in this regard.

Then, when it comes to calibrating the display itself, know that black level detail suffers on most displays when you lower brightness. Check for yourself by lowering brightness on your screen. This is contrast in effect:

http://www.lagom.nl/lcd-test/blacktest.png

The 2490 can be hardware calibrated / monitor lut calibrated down to desired brightness level without any loss of black level detail. As for capabilities, you are not comparing apples and apples with the 2490 vs. the 2411. Especially since the 2411's capabilities differs depending on where you look on the screen even when you are positioned dead center.
 
Great information....thank you for the input.

Those posts are interesting on the links provided. I find it interesting that there is no clear winner...at this point in time.....IPS, PVA, MVA etc......

It shouldn't be that difficult but it is.

Regards

Elliot
 
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