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Can image retention on LCD from Desktop BFI permanently burn my monitor?
Posted: 21 Jan 2024, 21:24
by Supermodel_Evelynn
I enjoy using Desktop BFI but it has a serious image retention on my M27Q P gigabyte monitor
After a few minutes it can leave a pretty nasty image retention very strong and can take 10 mins or more to disappear.
Really wish there was a way to stop the image retention problem with this software
Re: Can image retention on LCD from Desktop BFI permanently burn my monitor?
Posted: 23 Jan 2024, 04:51
by russelllangley
You can try using the monitor’s built-in screen saver feature to prevent static images from being displayed for long periods of time. It's quite effective for me.
Re: Can image retention on LCD from Desktop BFI permanently burn my monitor?
Posted: 25 Jan 2024, 10:54
by Supermodel_Evelynn
russelllangley wrote: ↑23 Jan 2024, 04:51
You can try using the monitor’s built-in screen saver feature to prevent static images from being displayed for long periods of time. It's quite effective for me.
Never in my life heard of monitors having built in screen saver let alone my M27Q P
I remember it being a thing when I had windows 95
Re: Can image retention on LCD from Desktop BFI permanently burn my monitor?
Posted: 06 Feb 2025, 18:53
by Chief Blur Buster
See
Why Does BFI Create Image Retention on LCDs.
I can solve it. I've helped Retroarch and Retrotink add LCD Saver modes.
But DesktopBFI doesn't have the mitigation feature.
I volunteer to add it by mid-2025:
https://github.com/squeaksci/desktopbfi/issues/7
It's not permanent unless you run it 24/7 for months on end. You do need to rewind the BFI-induced LCD image retention it by not running DesktopBFI more than 50% of the time, and making sure the display rests to discharge its static electricity from the LCD voltage inversion related buildups.
Remember, LCD pixels use squarewave AC current (not DC). One refresh cycle is positive voltage, next refresh cycle is negative voltage. BFI kind of overrides the balancing behavior of the LCD's voltage polarity inversion balancing algorithm, by making one voltage polarity black, and another voltage polarity non-black. This creates a static electricity buildup sticking the liquid crystals in specific orientiations; creating this side effect.
Re: Can image retention on LCD from Desktop BFI permanently burn my monitor?
Posted: 13 Jul 2025, 09:39
by blazerd123
any updates on its implementation in DESKTOP BFI?
Re: Can image retention on LCD from Desktop BFI permanently burn my monitor?
Posted: 16 Jul 2025, 13:41
by Supermodel_Evelynn
blazerd123 wrote: ↑13 Jul 2025, 09:39
any updates on its implementation in DESKTOP BFI?
It's useless for the most part but we have a major update on something much better
https://github.com/mausimus/ShaderGlass
^ Shader Glass is a world class CRT simulator universal window app that now supports Blur Busters CRT Beam simulator which is vastly superior to Desktop BFI
Re: Can image retention on LCD from Desktop BFI permanently burn my monitor?
Posted: 21 Jul 2025, 05:38
by nuninho1980
Supermodel_Evelynn wrote: ↑16 Jul 2025, 13:41
It's useless for the most part but we have a major update on something much better
https://github.com/mausimus/ShaderGlass
^ Shader Glass is a world class CRT simulator universal window app that now supports Blur Busters CRT Beam simulator which is vastly superior to Desktop BFI
I tried ShaderGlass and I change resolution screen to 1280x720@100Hz for test 50fps videos/live TV-Portugal but I can't find enable standard BFI (not CRT simulator, if I don't want OLED display but yes probably Viewsonic XG2431). I'm using CRT monitor 19".
I need ShaderGlass because Viewsonic PureXP+ may not enable enable single-strobe of 50Hz.
Re: Can image retention on LCD from Desktop BFI permanently burn my monitor?
Posted: 21 Jul 2025, 15:17
by Supermodel_Evelynn
yeah it's not working for some reason hopefully the dev can fix this
Re: Can image retention on LCD from Desktop BFI permanently burn my monitor?
Posted: 22 Aug 2025, 12:23
by Daevas
Supermodel_Evelynn wrote: ↑16 Jul 2025, 13:41
blazerd123 wrote: ↑13 Jul 2025, 09:39
any updates on its implementation in DESKTOP BFI?
It's useless for the most part but we have a major update on something much better
^ Shader Glass is a world class CRT simulator universal window app that now supports Blur Busters CRT Beam simulator which is vastly superior to Desktop BFI
Honestly i still hope desktop BFI can be updated.
With shader glass i had too many desyncs, a few flickers.... While desktopbfi just works perfect...
And desktopbfi is not a rolling scan black frame insertion, its a full black frame insertion.
My experience with it while using Wehem fork, is that at least for now, its FAR superior than the implementation made on shader glass.
The only drawback for me is that it doesnt have the LCD anti-retention algorithm...
I honestly really hope we can have an update on Desktopbfi, especially on the wehem fork. Adding LCD anti-retention algorithm would be good enough for now.
Re: Can image retention on LCD from Desktop BFI permanently burn my monitor?
Posted: 22 Aug 2025, 20:14
by Daevas
Chief Blur Buster wrote: ↑06 Feb 2025, 18:53
See
Why Does BFI Create Image Retention on LCDs.
I can solve it. I've helped Retroarch and Retrotink add LCD Saver modes.
But DesktopBFI doesn't have the mitigation feature.
I volunteer to add it by mid-2025: github/squeaksci/desktopbfi/issues/7
It's not permanent unless you run it 24/7 for months on end. You do need to rewind the BFI-induced LCD image retention it by not running DesktopBFI more than 50% of the time, and making sure the display rests to discharge its static electricity from the LCD voltage inversion related buildups.
Remember, LCD pixels use squarewave AC current (not DC). One refresh cycle is positive voltage, next refresh cycle is negative voltage. BFI kind of overrides the balancing behavior of the LCD's voltage polarity inversion balancing algorithm, by making one voltage polarity black, and another voltage polarity non-black. This creates a static electricity buildup sticking the liquid crystals in specific orientiations; creating this side effect.
I admit im anxious for this one... even more anxious than im for CRT Beam Simulator... I hope the Wehem fork can get an update!