izzeme wrote:
Also try different monitor types: plasma and LCD are a lot worse, flicker-wise than CRT and LED screens
There's a lot of confusion in that statement.
Plasma, CRT, and LED are all light emitting devices.
LCD by it's nature is a light filtering device that depends on a back or side lighting device, which is usually CCFL (tiny fluorescent tube) or LED.
Plasma and CRT devices, as well as CCFL devices, have a pulsed refresh.
CRTs are the slowest. Old televisions refresh at 29.9hz, which is slow enough to see it. The best CRT monitors are a bit over 100hz. Since they use phosphor glow to emit light, the persistence of the phosphor glow is a factor. TVs with their slow refresh rate generally have a long phosphor persistence. This is what causes ghosting when you play videogames on them.
The CCFL tubes in older LCD displays are pulsed at hundreds of hz. Well beyond visibility. The LCD itself is re-drawn at 60hz (ish) typically but there isn't a persistence issue like there is with a CRT.
Most displays that call themselves "LED" are an LCD with LED lighting, which is not necessarily pulsed at all.
Plasma displays are pulsed, but they are pulsed at about 600hz, which is far beyond visible flicker.