[Dalla]

Here are to still pictures that better show my problem:

picture 1

https://www.dropbox.com/s/eam48vsrtbhar ... 2.jpg?dl=0

Pitcture 2

https://www.dropbox.com/s/orvocomzq1v9t ... 3.jpg?dl=0

[Rasmus Larsen]

Just so we agree 100%. It's the red tint at the edge of the white area in picture 1, right?

[Dalla]

Just so we agree 100%. It's the red tint at the edge of the white area in picture 1, right?

Its the red dot in picture 1. And the red line in picture 2

[Rasmus Larsen]

Can you draw a pointer or a circle around it?

[Dalla]

Sure:)

1. https://www.dropbox.com/s/gljr0bnniggoh8r/1.jpg?dl=0

2. https://www.dropbox.com/s/5z5zi60o8vgufeq/2.jpg?dl=0

[Rasmus Larsen]

Okay, I was commenting on this:



Nevertheless, I believe they are related. The issue I commented on is within the standard tolerance on an LCD panel, I would say. What you are referring to is definitely not and this is something that Samsung should fix.

If you look closely at the two different things we have observed notice that your example is a color transistion from black (hair) to dark grey (his shirt). Mine is a color transition from light human skin (hand) to darker human skin (face)

The big difference in how the LCD panel reacts can be caused by which color transistion it has to reproduce. Dark grey to black is one of the more tricker ones. As you may know, LCD manufacturers often state something like "5 ms" or "10 ms" but that is the fastest transition. Some color transitions can take up to 100+ ms in severe cases. That's why manufacturers employ the overdrive systems in the first place.

The thing you are observing is very easy to reproduce with our monitorTest software, if you can get it to run. Go to the section "trailing" and try moving the square box (set it to black) around over a 'black to white' gradient. Notice if it exhibites red color trailing when pulling the black box over dark grey (or other tones). If this is indeed overdrive trailing and if it is the fault of the LCD panel in your TV, you should be able to determine that quite easily with monitorTest.

[Dalla]

Wow, thank you so much for this feedback.

This is excatly why I love flatpanels. Thank you so much.

Will try to use your monitortest today. What you are saying is this: if I can reproduse the problem in your program then I have get a new panel from samsung?

Cause, what I pointed out in the picture - this is something that is wrong with the panel I have and can not be fixed with a firmware update?

[Rasmus Larsen]

Yes, that's my opinion (that you should then present the problem to Samsung). The reason why I think it is important to establish whether this a generel issue (which can be done with monitorTest) is in order to rule out other potential sources of error (content etc.)

It looks to me like it may be panel related, yes. I could perhaps be reduced a lot with firmware (if the engineer knows what to optimize for) but it's hard to say really.

[Dalla]

Hei igjen!

I have now used your test. I had a black box. I tried all the backround colors. When using white/black backround and blackboks it had a green trailing.

See here:

1. https://www.dropbox.com/s/y66qufoua9jzf ... 0.m4v?dl=0

2. https://www.dropbox.com/s/xs111wo0l438q ... 1.m4v?dl=0

On the other colors the trailing was black.

What to you think it is? Now we have the resultat, i am so excited to hear if you have a different conclusion or if the panel needs changing.

@RasmusLarsen

[Dalla]

Yes, that's my opinion (that you should then present the problem to Samsung). The reason why I think it is important to establish whether this a generel issue (which can be done with monitorTest) is in order to rule out other potential sources of error (content etc.)

It looks to me like it may be panel related, yes. I could perhaps be reduced a lot with firmware (if the engineer knows what to optimize for) but it's hard to say really.

Hei igjen!

I have now used your test. I had a black box. I tried all the backround colors. When using white/black backround and blackboks it had a green trailing.

See here:

1. https://www.dropbox.com/s/y66qufoua9jzf ... 0.m4v?dl=0

2. https://www.dropbox.com/s/xs111wo0l438q ... 1.m4v?dl=0

On the other colors the trailing was black.

What to you think it is? Now we have the resultat, i am so excited to hear if you have a different conclusion or if the panel needs changing.

[Dalla]

When connecting my mac, i got a red trailing. See here:

1. https://www.dropbox.com/s/qdpdjxc8p5k6g ... 2.m4v?dl=0

What does all of this mean in your opinion?

[Rasmus Larsen]

Okay, the green / red trailing from your videos is definitely overdrive trailing. Perhaps a little worse than could be expected but quite normal for an LCD panel based on your videos. Overdrive trailing differs from conventional trailing in the way that it leaves colored trails after moving objects. Conventional trailing leaves trails with the same color as the moving object (for example black trails after a moving black box).

I'm not 100% sure why your are getting green overdrive trailing from a PC and red from a Mac but I think it comes down to picture settings. Do you use the exact same picture settings on the HDMI port that the PC and Mac are connected to? I mean, the same picture settings that you use for TV channels / streaming?

[Dalla]

Okay, the green / red trailing from your videos is definitely overdrive trailing. Perhaps a little worse than could be expected but quite normal for an LCD panel based on your videos. Overdrive trailing differs from conventional trailing in the way that it leaves colored trails after moving objects. Conventional trailing leaves trails with the same color as the moving object (for example black trails after a moving black box).

I'm not 100% sure why your are getting green overdrive trailing from a PC and red from a Mac but I think it comes down to picture settings. Do you use the exact same picture settings on the HDMI port that the PC and Mac are connected to? I mean, the same picture settings that you use for TV channels / streaming?

Yes, I use the same picturesettings on the tv. Not sure about the settings on the mac/pc thou.

After testing this, do you think its a defect panel, in regard that its overdrive trailing and not conventional trailing?

[Rasmus Larsen]

Based on the results from monitorTest it doesn't look defective per se to me, but perhaps worse than could be expected - especially for a flagship model. I usually look at it this way. If common LCD issues such as clouding, bleeding, overdrive trailing and the likes are visible during day-to-day use, the customer has a good case on his hand. If they are only visible during theoretical tests (like monitorTest), it is within the margin of tolerance.

But as said earlier, the red splotches / patches that you made me aware of, are definitely not normal. It may be that these are only visible in very specific color transition but it shouldn't happen on a flagship TV, in my opinion.