Could oleds be made to pulse black frames between actual frames, just like DYAC or ULMB2?

[ballbuddy4]

Might be a stupid question, but I need more understanding on this. I know some current oled monitors offer BFI, I know how it works and it's a different topic, no need to explaint that to me. I wanted to ask, if oleds could be made to pulse black between frames to reduce the persistence time of the frame, without needing to cut refresh rate in half by showing actual frames as black frames? Wouldn't oleds almost- instantaneous response time technically allow for something like this?

If I understand correctly, oleds can't seperately control the blue fluorescent layer at the bottom, and the color filters on top if it, like displays with DYAC and ULMB2 are doing, so they can't really "strobe" in a similiar manner like them. But what if they would just shut off the pixels in a similiar manner?

[Chief Blur Buster]

Might be a stupid question, but I need more understanding on this. I know some current oled monitors offer BFI, I know how it works and it's a different topic, no need to explaint that to me. I wanted to ask, if oleds could be made to pulse black between frames to reduce the persistence time of the frame, without needing to cut refresh rate in half by showing actual frames as black frames? Wouldn't oleds almost- instantaneous response time technically allow for something like this?

If I understand correctly, oleds can't seperately control the blue fluorescent layer at the bottom, and the color filters on top if it, like displays with DYAC and ULMB2 are doing, so they can't really "strobe" in a similiar manner like them. But what if they would just shut off the pixels in a similiar manner?

Yes, some OLEDs do this, such as LG C9.

But it requires extra electronics to be built into screen, sometimes at the lithography level (e.g. active matrix pixel arrangement) to allow multiple pixel refresh per Hz (an on + off cycle).

However, none of the desktop OLED's can do this. Their screens are fabricated as single pixel update per Hz, so you will want brute Hz instead. Get a 480Hz OLED in order to get 240Hz+BFI.

Besides, extra Hz is superior blur reduction.

120Hz+BFI (1 black, 1 visible) = 50% blur reduction for 60fps
240Hz+BFI (3 black, 1 visible) = 75% blur reduction for 60fps
480Hz+BFI (7 black, 1 visible) = 87.5% blur reduction for 60fps

See TestUFO Variable Persistence Black Frame Insertion for the science. Find the highest Hz display you can borrow (240Hz+) and play with that TestUFO to understand brute Hz = good for low framerate blur reduction.

[DreadTax]

Yes, some OLEDs do this, such as LG C9.

But it requires extra electronics to be built into screen, sometimes at the lithography level (e.g. active matrix pixel arrangement) to allow multiple pixel refresh per Hz (an on + off cycle).

However, none of the desktop OLED's can do this. Their screens are fabricated as single pixel update per Hz, so you will want brute Hz instead. Get a 480Hz OLED in order to get 240Hz+BFI.

Besides, extra Hz is superior blur reduction.

120Hz+BFI (1 black, 1 visible) = 50% blur reduction for 60fps
240Hz+BFI (3 black, 1 visible) = 75% blur reduction for 60fps
480Hz+BFI (7 black, 1 visible) = 87.5% blur reduction for 60fps

What I want in the OLED monitor space is some sort of way to not need to brute force the hz to reduce motion blur, what I want, is for my 240hz OLED to stay at 240hz and reduce motion blur. So what I've been thinking, is instead of using PWM for dimming, it could be strategically used to do the BFI op has mentioned, where you don't lose frames. BFI is cool, but I haven't used it due it lowering the refresh rate, and I am specifically referring about video games, less so general content viewing. So is there a way to keep the refresh rate whilst lowering motion blur on OLEDs? Would the PWM concept I mentioned work, or has it been tried and failed before

[Chief Blur Buster]

What I want in the OLED monitor space is some sort of way to not need to brute force the hz to reduce motion blur, what I want, is for my 240hz OLED to stay at 240hz and reduce motion blur. So what I've been thinking, is instead of using PWM for dimming, it could be strategically used to do the BFI op has mentioned, where you don't lose frames. BFI is cool, but I haven't used it due it lowering the refresh rate, and I am specifically referring about video games, less so general content viewing. So is there a way to keep the refresh rate whilst lowering motion blur on OLEDs? Would the PWM concept I mentioned work, or has it been tried and failed before

PWM is used in VR OLEDs, so if you want a low-blur OLED that way, you can get a VR headset. They include strobing by default.

Unfortunately, it costs more to manufacture OLEDs that can refresh multiple times (on+off) per rerfresh cycle, and desktop OLEDs are about ergonomics too (PWM-free) and so they only can refresh once per Hz. It's currently now cheaper to use the brute method.

Extra framerate are also a brute method too. For example, 480fps 480Hz OLED as a method of having 4x less blur than 120fps 120Hz OLED. Doing 120fps plus 3 black frames at 480Hz, is less brute on the GPU, while looking as clear motion as 480fps 480Hz. And much less motion blur than 120fps 480Hz. When your framerate is low, you will notice adding BFI and lowering Hz can improve quality (in terms of blur busting + lack of double images).