Originally Posted by Nikwasi
The gamma setting seems to have an effect. At gamma -3 my screen goes uniformly black, and at +3 the lines dissolve into that I would call static. Hmmm...
Raising gamma causes the dithering pattern you are mentioning. I'm assuming that's because the gamma is pushing the level 1 black above the absolute black threshold. However, reducing it down to -3 doesn't affect the lines at all. Nor does adjusting the brightness, FYI.
Originally Posted by orion2001
Also, I just did a quick test and I actually do not observe an increase in black levels with CS turned on. Are you sure you set your brightness level correctly with CS turned on? If it is too high, then you get a pronounced green dithering pattern on a black screen with increased black levels. However, if you lower brightness to ~ 46-48, you will find a setting where the green dithering cuts out and you get great black levels. You should still not clip level 1 black. Comparing CS on v/s off, I measure the same ~ 0.005fL black level.
Actually, I'm not sure. I'll give it another shot and see. That being said, I don't have a meter, so I'll just have to eyeball it.
Whew...well, that's a load off. I did notice last night that turning dark room optimizer off seemed to make the lines a bit less noticeable, though they are still there. That being said, as long as they are supposed to be there, I'm really not concerned: even during dark scenes, they are pretty much invisible. The only time I can see there is when the screen -- and room -- is totally black. That being said, I still have my faintly glowing left edge...but damn, it's such a minor thing...hmmm...
Originally Posted by StinDaWg
Can you test with black optimizer set to auto? According to this post he got better blacks and brighter whites with black optimizer set to auto instead of dark room. I've never seen anyone get those results before.
I experimented with this before, and couldn't see any difference (ie., in blackout conditions, 'auto' looks the same as 'dark room'). I don't have a meter, so I can't measure it for certain.
Originally Posted by orion2001
Currently I have both Black Tone and Black Optimizer to OFF. The reason for the latter is that I've noticed an artifact that shows up when a bright image/window is displayed rapidly over an all black screen. Black optimizer essentially results in a longer delay for pixels to turn back on from full black and as a result, I can sometimes see individual pixels that are still waiting to turn on. The lag is usually ~0.5-1s at most. It isn't very noticeable but if you display an all black screen and then hit the TV menu button to bring up the menu, it is easy to see this effect. I first noticed it when viewing the intro titles in a movie. I should mention though, that this is a bit exacerbated on my set since I dropped Vs on the panel to alleviate my red-tint issue to some extent.
I'll try out Black optimizer to Auto when I get the chance though I don't envision myself using it for the reasons listed above.
I've seen that same effect, though damn, you've seen pixels take up to a second
to come back on?
On mine it's maybe 100-200ms tops. Personally, I don't mind it, nor do I see it very often (seems like I saw it more when I was first using the set; though I haven't put many hours on it yet). Having had a gray-blacks LCD for the last 5 years, I'm still reveling in having the deepest blacks I can coax out of this set.
Next up, bias lighting...