it's funny you should say this, because i'd understood the 24" model has the same type of display as the 23" and 30" ACD's?
Yep, very similar. They're all LG.Philips S-IPS panels -- but somehow, Apple managed to FUBAR the backlighting on many (most? all?) ALU iMacs.
Mid_2007 24" iMac: LG.Philips LM240WU2-SLB1, S-IPS, 8-bit
Late_2006 24" iMac: LG.Philips LM240WU2-SLA1, S-IPS, 8-bit
Mid_2007 20" iMac: LG.Philips LM201WE3-????, TN Film, 6-bit
Late_2006 20" iMac: Samsung LTM201M1-????, S-PVA, 8-bit
20" Cinema Display: LG.Philips LM201W01-SLA3, S-IPS, 8-bit
23" Cinema Display: LG.Philips LM230W02-????, S-IPS, 8-bit
30" Cinema Display: LG.Philips LM300W01-????, S-IPS, 8-bit
See:
http://www.tftcentral.co.uk for additional panel specs.
i can't see any difference between my Al 24" and the year old 23" ACD sitting next to it.
That may be your experience, but here's what my 24" looks like.
Eight others I examined in two Apple retail stores had brightness gradients at least as bad -- or worse:
http://picasaweb.google.com/TheLooby
My iMac's left:right luminance ratio measures 2.5:1. That's
three times worse than the
absolute worst-case allowable for TCO'03-certified monitors -- like the ACDs, and
hundreds of economy-priced monitors.
http://www.tcodevelopment.com (note language-selector at top of page)
..the ALU iMac displays would be an embarrassment to Wal*Mart,
LK