The video is quite interesting and proves that clear motion without any blur can give WOW-effect comparable or even more impressive than hdr or static 4k.
And I'm wondering to explain this phenomen.
As I understand, in real world our eyes can see in two ways:
Smooth pursuit and saccadic eye movements.
If we want to pursuit moving object or we want to focusing while moving our head - we use Smooth pursuit.
If we look at static objects or we don't want to pursuit objects -we use saccadic eye movements.
The second part is how eyes can see image on the displays.
Saccadic eye movements heven't problems at all.
But pursuit moving objects is different story.
Just imagine If you have in your hands gun and you need to shoot plates. You are trying to pursuit the plate and predict its trajectory. But what would happens if the plate has periodic freezing? You can't stop/start your pursuit with 1 sec period. No, you will try to ignore the plate's stuttering and will pursuit the target with smooth iron sight's moving.
The same works with our eyes. Eyes outpace the moving picture on the screen(which looks static for a few millisecond 16ms 60hz, 8ms 120hz e.t.c.) and this picture become outrange of the moving fovea centralis. So the motion blur you see on LCD display is just because this image can't be in the fovea centralis all of time.
So, let's return to our LCDs and try to understand why we are so tollerate to motion blur.
I guess we just get used to avoid our smooth pursuit while using LCD, and media-industry tries to hide this problem too.
In movies, specialists make even more motion blur to hide 24p juddering. In console games we have a lot of screen motion blur to avoied 30fps juddering. And motion blur is very comfortable for LCD manufactures, because can hide bad response times(bad means 1ms BtW and more).
CRT, BFI, PLASMA would be useless in this case:
And mostly important - we can get tired of smooth pursuit. Just try to pursuit UFO from www.testufo.com for a 10-20 minutes, and tell me your feeling after that.
Some people can't to get used to motion blur and they still want to pursuit objects on the screen, they hope 120/240hz LCD could help. But it can't. Just remember simple rule for sample and hold - you can avoid blur, if you move object pixel/sec equal or less of your real HZ. If you use 120hz monitor , motion equals to static quality only at 120pix/sec. So, you need to move cursor from one side of screen to another in 16 secs to avoid any motion blur with 1080p screen. If you use 4k 60hz Sample and hold screen - you need to move cursor from the left to the right about 64 seconds to avoid ANY blur ).
If you start to move objects at 180pix/sec on 120hz screen -you can notice slightly visible quality degradation which is depends on how optimal is your viewing distance.
You can check it
120pix/sec
TestUFO: Moving Picture Response Time (MPRT Indicator)
TestUFO: Moving Picture Response Time (MPRT Indicator)
TestUFO: Moving Picture Response Time (MPRT Indicator)
TestUFO: Moving Picture Response Time (MPRT Indicator)
At higher speeds(480 pix/sec and more) blur just would be more obvious.
That's all I want to say about LCD sample and hold problems and why we live with that. I doubt we could return to CRT era, because sample and hold dislays have some benefits. So, I see the only way to combine all good thing together - use flickerfree SaH screen with BFI apportunity. BFi is not perfect, but it really can to get rid of motion blur, even at high speed.
In my case, KS8500 can show static=motion even at 2880pix/sec and 3840pix/sec(hard to pursuit). The feeling of crisper clear 4K image in static and clear 4k in motion is just jawdroppng.
It has some downsides, 60hz flickers a lot(so in future we need 85hz+ 4k panels ). You need to decrease backlight for more clear image. Frame rate should be extremely stable with vsync, ingame motion blur must be turned off, and gamepad is the best choice for fast and stable panoramic motions.
Share you own experience with LCD/plasma/ulmb/bfi monitors and which maximal motion resolution you have according to testufo.com .
Last edited:
