I really want the FX OLED to move or bounce around to stop the burn-in. I’ve not experienced it yet but I’m genuinely concerned as I have my Prime on for 4 hours per night, 7 days a week.
A better solution is needed.
Maybe the display slot goes off until an FX knob is touched? It needs something.
@MrWilks you don’t have to worry about that if you have it on every day for a few hours. i had mine on for probably a day and a half and was left with what looked like burn-in, but it went away. this is a phenomenon that only happens when you leave a screen on for long periods with no change in what’s on the screen. (the original purpose of a screensaver.) you SHOULD be able to do that in 2019 without burn-in. hellnegative’s point is that leaving a screen on indefinitely while not in use is not good practice for the life of the screen. personally i have led displays that have stayed on for literally years with no burn problems, although one did just burn out. we need to hear from denon what we should expect from this screen.
The burn out is usually due to the resistors on the board failing over time. Surface mounted resistors are super prone to either failing due to being hot for too long. THey are the little tiny black rectangles with numbers on them.
Buy a timer switch so that everything switches off at 4 am 
Hi all, some good suggestions here, please add them to: https://community.enginedj.com/c/feature-requests/prime-4
thanks J
I’ll drop a suggestion in soon. Just in Hamburg for the day.
The Prime 4 is doing me proud in the club in a cruise ship (probably the only one installed at sea?).
The OLED burn in was very strong on the X1800 so the nervousness with my Prime 4 was always there but suppose the timeout will help.
please like this post: https://community.enginedj.com/t/screen-saver/14218
and add any additional comments 
Hi @jalderwood, this is a weird situation but I’m glad to hear that it’s resolved. We put all of our products through rigorous testing, and have not run into this ourselves. Please contact us again if you experience this ‘burn-in’ again, and pictures/video will definitely help. Lastly, adding a screen saver is a terrific feature request for PRIME 4, please be sure to like the post to get it under our Dev Team’s radar!
This is incorrect. A burn that appears in a screen is normally when its been left on for long periods of time but the screen image does not change so when you turn it off it leaves a ghost image of what was on the screen at the time which is why its called a image burn or ghost burn it as nothing to do with the resistors or anything thing on the circuit board.
You will never get a burn on the screen if you are using the Prime at the time for those 4hrs. The image burns only come from a image that as been on a screen for long periods of time and burns in.
Very true.
However, burn in on OLED is rife. Have you seen the burn in on the X1800 thread? I have friends with burn-in from the keyboard on their Samsung Galaxy S7s. Long periods of time with the same image causes burn-in and I want to see a little more prevention. I start work at 9:45pm and finish at 3 or 4am for 7 days a week. If I’m not changing the FX often enough then it’s most probably going to leave the ghosted image. It’s happening on the X1800.
If the risk is reduced then we won’t see this: X1800 Mixer Feature Requests
There are clear images and people suffering on the X1800. A better screensaver option is the only way forward.
The surface resistor comment was referring to another post about LCD/LED screens dieing (going black) from extended use.
Ah sorry you was on about the FX screens. Yeh ive actually never looked at them but i will now to check as i never really mess with the FX stuff in my mixes.
This same thing happened to me a few days ago, but only needed 5 hours to get the “image fixation” effect. The difference is that I forgot to remove the plastic screen protector that comes with the Prime 4 while the unit was turned on. When I removed the protector the screen was pretty hot and the “Load user profile to player” window was fixed like a shadow in the screen even after rebooting the unit. I turned off the Prime 4 and let the device to chill for several hours. After that turned it on again and the shadow in the screen was gone, fortunately. Now I’m using the Prime 4 with the brightness turned to the medium setting instead the max setting. And yes, the unit needs some kind of screensaver or whatever for preventing a irreversible image burn.
Any update on this Denon? Just got this after 3 hours with my Prime 4. We really need a simple screensaver.
Is it worth merging all 4 or 5 topics that Vandetta has necroposted onto?
If there is a un-retaining action suggested, it would be nice to have it mentioned in just one place that can be linked to, if there are any future happens.
I thought about that, but that would mean the OP loose their topics and it becomes one big unreadable mess.
@Vandetta, image retention, I think, is something that is just there because of used screen type. LCD should have way less ghosting and burn-in than other screen types, but still it can happen. I understand it’s a big problem that perhaps only hardware support can resolve, but please try to stick to your own topic.
@Reese Point taken. I am just trying to bring awareness. It seems this subject gets “ignored” and again I have no real answers. I’m lost are you saying this is supposed to happen? It just doesn’t make sense.
No, I’m saying that LCD can have permanent burn-in. People forget that, thinking LCD is free from burn-in.
It is not supposed to happen, because of normal image retention, it should get back to normal.