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I got this idea from the patterns described in the display metrology document from this thread. They can be used to measure your display minimum luminance level (MLL) and see how it varies with the average picture level (APL). Full field black and ANSI patterns may not capture the idiosyncrasies of your display that can affect contrast ratio when viewing real content. There are 13 levels on the disk which contain a central 10% area black window surrounded by a random star field pattern. The star field pattern contains at least 10% of the pixels distributed between levels 16-235 so that all video levels will be stimulated at each pattern level even lthough the average will vary as given below:
1 0%
2 4.8%
3 9.3%
4 13.7%
5 20.4%
6 24.8%
7 29.3%
8 33.7%
9 38.1%
10 51.3%
11 61.6%
12 72.8%
13 87.5%
Using these patterns to measure MLL vs. APL on my display, all measurements using a D3:

You will notice that at 10% average stimulus the D8000 MLL rises more than a factor of 2 and then tapers down slowly. The ANSI measurement is also shown and it has not budged from the full black level. So if all you did was measure full black contrast and ANSI contrast on this display you would overestimate it's contrast performance when displaying real video content. It would be interesting to see other panels measured in this way.
updated 06/14
-added asymmetric patches for local dimming tests
-added 3x3, 4x4, 5x5, 6x6, 12x12 ANSI patterns
-added Dynamic contrast test (25% fixed on variable background)
updated 06/18
-added ABL loading patterns, peak white on variable background up to 97% average stimulus
-reduced disk size, patterns run for 10 seconds each
The patterns in AVCHD/DVD format can be downloaded here.
1 0%
2 4.8%
3 9.3%
4 13.7%
5 20.4%
6 24.8%
7 29.3%
8 33.7%
9 38.1%
10 51.3%
11 61.6%
12 72.8%
13 87.5%
Using these patterns to measure MLL vs. APL on my display, all measurements using a D3:
You will notice that at 10% average stimulus the D8000 MLL rises more than a factor of 2 and then tapers down slowly. The ANSI measurement is also shown and it has not budged from the full black level. So if all you did was measure full black contrast and ANSI contrast on this display you would overestimate it's contrast performance when displaying real video content. It would be interesting to see other panels measured in this way.
updated 06/14
-added asymmetric patches for local dimming tests
-added 3x3, 4x4, 5x5, 6x6, 12x12 ANSI patterns
-added Dynamic contrast test (25% fixed on variable background)
updated 06/18
-added ABL loading patterns, peak white on variable background up to 97% average stimulus
-reduced disk size, patterns run for 10 seconds each
The patterns in AVCHD/DVD format can be downloaded here.