Originally Posted by japers
Thank you, jk82!
You have found the (probable) culprit. I couldn't find that to save my life!
I haven't been seeing it because I wasn't using the Pause button on Amazon Prime. On the streaming services I just use the Back button when I want to stop streaming. That leaves the selector on the current episode of whatever I'm watching. Restarting just requires hitting the central control button on the remote. (The back button is easier to find by feel on the remote in the dark viewing room. / Why didn't LG put backlighting on their remote control?)
So I have to wonder why this yellow button seems to have caused some sort of retained shadow image in this one are of my particular TV. That yellow is used on lots of controls, including a rectangular icon on the bottom right of screen I go to on Amazon Prime when I hit the Back button to pause what I'm watching. There's no sign whatsoever of an artifact in that area of the screen?
Only thing I can say is... these OLEDs are weird...
I got the yellow rectangle from the YouTube app burned in on my previous panel, in addition to elements of the HUD of the Destiny 2 logo. The Destiny 2 HUD makes sense to me. There are transparency options for the HUD, but the highest setting barely makes it less opaque than not using it at all. The elements that burned in were yellow. The game was always played in HDR, and the HUD is even more super bright in HDR than SDR. I have thousands of hours in Destiny 2 and Destiny 1 combined, and I think the HUD is the same on both, basically, and in the same place. All checks out as potentially dangerous viewing for an LG WOLED.
The YouTube rectangle doesn't make sense to me. The rectangle shows when you pause a video or when you are on the homescreen of the app and not watching a video. I almost never pause a YouTube video, and on the very rare occasions I do, it's only for like a minute at the most. I'm rarely on the app home screen because I launch and control the app from my phone, and play one vid after the next from my queued up watch later list. So all in all, maybe that rectangle was displayed hundreds or thousands of times, but in almost all cases when it was displayed, it was only on screen for the time it takes me to exit out of the app after the last video finished playing.
That one has me baffled. Sounds like maybe your yellow triangle is similar, in that you rarely bring it up, and when you do, it's for a very short period of time, yet it burned in. Maybe WOLEDs don't like certain yellow geometric shapes