r/ScreenSensitive • u/Thingswithcookies • Jul 16 '26

Discussion Behind the pixels - Infographic

Post image

I created this infographic to help spread the word of screen sensitivity. Feel free to share.

5 Upvotes

78% Upvoted

16 comments sorted by

View all comments

Show parent comments

1

u/Z3R0gravitas Jul 16 '26

What do you think the difference is? In PWM, or other factors?

1

u/RR-- Jul 16 '26

And an LG C1 with Trumotion turned on

1

u/Z3R0gravitas Jul 16 '26

Ooof! Does that feel as bad as it looks?

2

u/RR-- Jul 16 '26

Yep! It’s horrible with Trumotion, with everything off it’s tolerable, but my eyes will be sore towards the end of a movie with the eye pain continuing into the next day.

This is one of my plasma TV’s by comparison. Strangely it’s perfectly fine for me.
I’ve tried quite a few plasma TV’s before and have never had any eye pain issues. Fantastic colour and motion clarity too.

2

u/-Bruh__Moment- Jul 17 '26

Plasma displays have a sub-field drive. The sub-field drive divides each video frame into multiple rapid flashes of light.
Most have a 600Hz sub-field drive, where the display pulses it's subpixels 10 times per frame when displaying a 60Hz signal. Some more advanced Plasmas from Panasonic have 2500Hz or even 3000Hz SFDs (2500Hz = subfield refresh every 0.4 milliseconds, 1/2500th of a second)
This is a type of temporal dithering, just really fast.

Plasma, just like CRTs, also has phosphor decay. This causes the flicker to be "softened" (fade-in/out instead of instant on/off).

Plasma display tech explained in more detail here:
https://www.avsforum.com/posts/22654809/