Do TFTs get burn ins?

[BoomAM]

Hi.
I was wondering, do TFT get burn-ins?
Cos afaik, they have phosphorous layers, so that`d suggest that they do, but contradicting that, is that aparently they only refresh/chance the pixels that are actually changing, and not the whole screen, so that`d suggest to me that it doesnt get burn in.
Someone care to clear this up for me?

 

[Methodical]

No. LCDs dont use phosphorus on the display surface like a cathode ray tube does. They use CCFLs in the back (which DO fade over time, although at a very slow rate AFAIK). In front of that they color filtering for each sub pixel (liquid crystal off = whatever color that subpixel is, liquid crystal on = black subpixel).

 

[Mark R]

Some LCDs can exhibit a type of burn-in phenomenon, where a static image can sometimes appear to persist. Unlike CRTs and OLED displays, this is a temporary phenomenon and will typically fade within a few hours.

 

[BoomAM]

So in conclusion;
No burn in?

 

[Dinominant]

Over time the transistors that controll the LCD could degrade, and this could cause some burn-in (I have no proof).

 

[Shalmanese]

I've used a LCD in a public computer lab which had an effect which I could only describe as burn-in. Portions of the screen were of a markedly different shade from others. I also found one which had a very distinct "temporary" burn-in. You could leave it on a page full of text for 10 minutes and then switch to a white window and quite easily be able to read the text from the after image which persists for about 20 minutes. Both were NEC brand monitors IIRC