Image may be NSFW.
Clik here to view.
Clik here to view.

Credit: Figure 20 in OLED paper on Journal of Vision
We originally created the article:
Why Do Some OLEDs Have Motion Blur?
There is a high-speed video of a Sony Trimaster OLED display which shows the same OLED scanning method written in a paper by japanese scientists (Figure 20).
OLED still uses top-to-bottom scanning that both LCD (video) and CRT (video) still do today.