Do TFTs get burn ins?

BoomAM

Diamond Member
Sep 25, 2001
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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

Member
Oct 16, 1999
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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

Diamond Member
Oct 9, 1999
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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.
 

Dinominant

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Sep 12, 2003
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Over time the transistors that controll the LCD could degrade, and this could cause some burn-in (I have no proof).
 

Shalmanese

Platinum Member
Sep 29, 2000
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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