Oh, that effect!3Y3 wrote: ↑15 Aug 2023, 06:28on a 240Hz LCD, that 60fps + 3x BFI looks clearer motion than 240fpsChief Blur Buster wrote: ↑14 Aug 2023, 18:52If you have a 240Hz display, please stare at the laws of physics of TestUFO Variable-Persistence BFI (designed for 240Hz displays) -- these are the single-strobe BFI choices Retrotink can give you for any 240Hz display. This educational scientific animation, helps demonstrates that pulsewidth dictates persistence display motion blur.
Normally, 60fps with 3:1 black:visible ratio is identical blur to 240fps.
Occasionally, LCDs can behave 'better' because GtG pixel response behaviors to black color is usually fast, and away from black color is usually slower. This can create an effect where BFI'd 60fps or 120fps (Without a strobe backlight) has clearer motion than 240fps 240Hz.
This is only because of LCD GtG's asymmetry for different pixel color pairs. With GtG fast-to-black and GtG slow-away-from-black, will prolong the BFI slightly, and create the effect that you describe.
I have seen this happen before with some LCD panels. It's really interesting how asymmetric GtG problems (that normally causes ghosting) can create some... 'happy accidents' like these.