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Re: LED displays: some comments and observations.

Roger Breton wrote: 
I had the opportunity to use my EyeOnePro to measure the spectra of a
Samsung XL24 along with those of the Eizo CG301W and CG241W during GATF's
CMS Conference in Phoenix two weeks ago. For those interested, the files are
available for download here:

http://homepage.mac.com/graxx/FileSharing4.html 

thanks :-)

I included spectrum images and spectrum data files exported from
BabelColor's CT&A and an Excel file that combine the three primaries and the
white plotted with Excel's default smoothing (Danny would object).

With hindsight, I realize I should have done those measurements a little
more carefully but I find them nevertheless useful for getting some idea of
what to expect from LED vs CCFL LCD technologies.

Seeing that both displays are advertised as "wide gamut", I am disappointed: when I compare the primaries (and calculated secondaries) with those of my CG210, I don't see any improvements in green or red -- only the gamut in the blue (and therefore also the cyan and magenta) region seems to be larger -- but I ask myself how much of it will be left when they are calibrated to D50.

On the other hand: when I compare EIZO's profiles for the CG241W using a 3D viewer like <http://iccviw.de>, its gamut looks /much/ bigger in the green, red and cyan region.

I'm confused. Are you sure you measured the native primaries?

(I took the profiles for the XL20/XL24 from Samsung's Windows "drivers" with a pinch of salt -- their gamut is tiny, it seems to me that they are only valid for some kind of sRGB emulation mode ;-)

Klaus
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 >Re: LED displays: some comments and observations. (From: Roger Breton <email@hidden>)



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