Blur Busters Forums

edge lit and array panels would have line source lighting that would flow and hence strobe from positive to negative

for eg a ccfl edge lit would have the top tube flowing L to R and bottom R to L. some would have a counterclockwise flow along the borders. array panels would have a row of strips flowing L to R. mini led I assume same, just like array type general lighting?

what about oled? I assume it would flow in an array type pattern separate to the scanning itself?

asking cause I noticed that with monitor based vision therapy eye movements would change depending where patients looked due to optokinetic effect. i have modded a 2 strip edge lit monitor so flow direction is same

liquidfon wrote: ↑

17 Feb 2025, 23:10

what about oled? I assume it would flow in an array type pattern separate to the scanning itself?

CRTs and OLEDs have light that matches the scanout. So for OLED, the light flow direction is left to right for each scanline, and top to bottom for the whole image.

This is easier to see in slow motion when using BFI on an OLED. The display to the left in this video is an OLED that uses BFI. The one to the right is a plasma display which is based on PWM:



The difference to a CRT is that on OLED the pixel stays lit (since it produces the light by itself for as long as current is supplied to it, it does not depend on a backlight,) while on a CRT the "pixel" (they're not really pixels but that doesn't matter right now) only stays lit for a short while and fades out over time:

is there anyway to hack this for e.g top to bottom scan with scanline right to left?? its software or hardware?

liquidfon wrote: is there anyway to hack this for e.g top to bottom scan with scanline right to left??

A mirror is the simplest option.

I've actually been doing that in TBI/vertigo patients with regular led light panels

those small diy panels allow to control COM (rows) and SEG (column) direction. is this remotely possible on consumer oleds?

Relevant high speed videos: www.blurbusters.com/scanout

This isn't a backlight flow; but the fact that not all pixels on any panel (LCD, OLED) are refreshed simultaneously. Laws of physics doesn't allow that.