petasis wrote:I am not so sure that it is not important. I think it is, especially on LCDs. where global dimming can be activated. If you use the chessboard, you measure black & white simultaneously, on the same image shown in the TV. If you measure black/white separately, a TV can dim its backlight.
For example, it is not easy to believe that B7000 measured 0,06 cd/m2 & 188 cd/m2 on a chessboard. On the other hand, the measurements for B8000 are quite different: and they use similar panels. The difference is that B8000 has a black adjust setting, that can turn backlight dimming off. If the B7000 measurements are affected by backlight dimming, one can suggest that measurements have not been done on a chessboard pattern.
So, are you sure that a chessboard pattern is used for contrast measurements? If yes, can you comment on the numbers measured on B7000/B8000?
It's true but I was refering to the SL8000 review here on an LG TV. You're talking about Samsung TVs with global dimming.
What B8000 review are you refered to? There's no B8000 review here on FlatpanelsHD. Did you translate our Danish review on FlatpanelsDK?
On B7000 we measured:
Out-of-Box After calibration
Black 0,06 cd/m2 0,05 cd/m2
Brightness 188 cd/m2 119 cd/m2
Contrast ratio 3166:1 2380:1
On B8000 we measured:
Out-of-Box Efter kalibrering
Sortniveau 0,07 cd/m2 0,05 cd/m2
Brightness (lysstyrke) 208 cd/m2 118 cd/m2
Kontrastforhold 2971:1 2360:1
This is very similar. I'm not sure what you're asking?
And yes, we always use the ANSI way. We have been doing this for 5 years now in all our reviews.