Originally Posted by
jingai 
I finally found some time to calibrate my new TC-L55E50 using a Spyder3 colorimeter and dispcal + Argyll CMS. The source I used is a circa-2007 Core Duo Mac mini I use as an HTPC with XBMC. XBMC translates everything to sRGB, so I targeted that with a white level of 100cd/m2, partly because I found 120 a bit too bright and 90 a bit too dark, but mostly because I found it was the sweet spot on my set for getting the best contrast.
My baseline was Cinema mode with color temp set to Warm. Normal was way off from sRGB, so if you use XBMC, don't choose that. Not sure what anyone would use Cool for..
The default settings for Cinema mode were not as bad as I expected: deltaE of 2.9, gamma of 2.13, and black level of 0.19cd/m2. Not fantastic, but not unwatchable or anything.
I first set out to try to dial the color in a bit better. I found that cranking Brightness to 65+ stabilized the color, but at the expense of the already-poor contrast ratio (black level of 0.21) and gamma (measured 2.0), which was expected. For some reason the red gain is low and slightly unstable until brightness is set at 65 or greater.
So I dialed Brightness back ten points below the default to 40 and pushed the Backlight to 29. dispcal reported the best contrast ratio with these settings. I set Color to 70 and left Tint alone (eyeballed them first to get in the ballpark). Preliminary measurements looked good, so I fired off the calibration and got these results:
sRGB coverage: 97.1% (excellent!!)
Black level = 0.15 cd/m^2
White level = 95.93 cd/m^2
Aprox. gamma = 2.19
Contrast ratio = 654:1
White chromaticity coordinates 0.3121, 0.3286
White Correlated Color Temperature = 6538K, DE 2K to locus = 4.7
White Correlated Daylight Temperature = 6538K, DE 2K to locus = 0.1
White Visual Color Temperature = 6367K, DE 2K to locus = 4.5
White Visual Daylight Temperature = 6534K, DE 2K to locus = 0.1
I'm pleased with these results. It doesn't have the greatest black levels and color isn't as stable as I'd like, but for a $1200 55" TV I'm very happy.
Here are my final settings for the Mac mini if anyone wants to use them as a starting point:
Picture Mode = Cinema
Backlight = +29
Contrast = +95
Brightness = +40
Color = +70
Tint = 0
Sharpness = +25 (probably should be 0, but it looked too soft to my eye)
Color Temp = Warm
Color mgmt = Off
A.I. Picture* = Off
C.A.T.S. = Off
Video NR = Off
Mosquito NR = Off
Motion Picture Setting = Weak (personal preference)
Black Level = Light
HDMI Range = Nonstandard (needed for PC sources)
And I calibrated my PS3 by eye using the AVSHD patterns. The PS3 color range was set to Limited:
Picture Mode = Game
Backlight = +30
Contrast = +90
Brightness = +54
Color = +64
Tint = 5
Sharpness = +25 (probably should be 0, but it looked too soft to my eye)
Color Temp = Warm
Color mgmt = Off
A.I. Picture* = Off
C.A.T.S. = Off
Video NR = Off
Mosquito NR = Off
Black Level = Light
HDMI Range = Auto
* As an aside, I really wanted to like A.I. Picture (it definitely does help black levels), but turned it off in the end for a couple of reasons. The big issue is that it would be hard to calibrate properly, but secondarily, it just reacts too slowly, taking almost a half second or so to adjust between very bright and very dark scene changes. It also seemed to get really confused on animated material, pulsing widly on some scenes. Most of the time it's OK, so it's obviously a personal preference (better black levels a lot of the time vs occasional wonky backlight behavior).