I recently purchased a Sharp Aquos 70" LED television ( LC-70LE734U ) and performed a calilbration on it. I didn't feel the colors were setup as well from the factory as was my Sharp 52". Flesh tones were poor at the lower light levels and shadows were too dark and the light areas were too bright. None of the AV modes or basic controls did much to correct the problems, so I decided to calibrate it.
Since I also had a 52" display I decided it would be worthwhile to buy an inexpensive meter and calibrate them both. I suppose the calibrations are only as accurate as the meter, but after performing the calibrations on them both, the pictures are much improved, at least to my eyes. Certainly now, when I use the standard test disks for brightness, contrast, color, tint, decoder accuracy, etc., both displays show that they are calibrated.
The Sharp displays have full CMS controls and two sets of gray scale adjustments, so it's possible to calibrate them fairly accurately. The 70" Sharp has a lot of rather goofy options that affect the setup and the resulting picture quality and deserve to be turned off. The Expanded gamut feature is a prime offender - you simply cannot calibrate the CMS with feature enabled.
Another surprise problem is with the Aquamotion 240 Motion Enhancement feature - it drops the Y of all colors considerably, making it hard to hit your target values. The x/y remains aligned, but the Y drops with Aquamotion on - weird. The standard 120 Motion enhancement didn't have that negative effect and worked fine, and along with shutting off their Film Mode and Digital Noise reduction options, I found motion on the display quite good (sports, etc).
I calibrated the Movie mode and the results were quite good. I had some small problems with Red CMS adjustment. The end result was a Red DeltaE of 5.6, with the remaining primaries and secondaries all under 2.6.
I used the X-Rite Eye-One Display 2 color meter and HCFR colormeter software
along with the excellent GetGray calibration disk
and also the AVS HD709 MP4 software patterns
. I calibrated with the GetGray disk from my DVD player sourcing the three wire component input first, and then checked to see how close the calibration was when using an HDMI input from my laptop using AVS HD709 MP4 patterns. There were some small differences, but not enough for me to want to calibrate differently for different inputs or sources.
I used the GREYSCALE & COLOUR CALIBRATION FOR DUMMIES
by Kal, Editor at CurtPalme.com and also the Basic Guide to Color Calibration using a CMS
by Tom Huffman to help with the calibration. I do own both DVE and AVIA, but the GetGray disk is so easy to navigate I chose to use it. It has all the patterns you need to calibrate.
I attach the chart results.