Ghosting and Burn in

Corrective · 04-22-2008, 08:53 AM

Sorry if this seems like a dumb question but could someone explain the definition of "Ghosting" and "Burn in" ?

I get the general idea of what people mean but I think i'm missing something in translation when i'm reading the other threads.

Thanks

gwynevans · 04-22-2008, 10:31 AM

See the 2nd & 3rd pics here for some examples from the 500 (previous generation display) reader.

NatCh · 04-22-2008, 11:13 AM

As a nutshell explanation of ghosting (the more informative term, in my opinion):

Ghosting is a residual "shadow" of the previous screen contents on the present screen.

This was more of a problem in the older displays such as were on the PRS500, the newer "Vizplex" displays don't have nearly as much problem with it. The older one usually only had problems with it when the display had been idle for a period of time, and a few "page turns" would make it go away.

As a real world reference, the old display's ghosting is fairly comparable to the "show through" of text on the other side of a printed page.

Corrective · 04-22-2008, 07:40 PM

Thanks for pics and explanation guys!

Dylrob · 04-23-2008, 02:41 AM

I 'd like to point out that "burn in" is technically not the same as ghosting. Burn-in is where display a static object on a screen for a prolonged period of time causes a permanent ghost-like image on the screen. True burn-in really only occurs with CRTs and Plasma displays, though it's often misattributed to temporary ghosting seen on other displays like eInk and LCD.

tgharold · 05-01-2008, 09:25 PM

Early LCD screens (TFT?) would also suffer from burn-in issues. I remember seeing it on some Compaq laptops in the late 90s.

Modern LCDs don't seem to suffer from it at all, but I'm not sure what changed.

04-22-2008, 08:53 AM	#1
Corrective Enthusiast Posts: 32 Karma: 46 Join Date: Apr 2008 Device: PRS-505, PRS-600, PRS-650	Ghosting and Burn in Sorry if this seems like a dumb question but could someone explain the definition of "Ghosting" and "Burn in" ? I get the general idea of what people mean but I think i'm missing something in translation when i'm reading the other threads. Thanks

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04-22-2008, 10:31 AM	#2
gwynevans Wizzard Posts: 1,402 Karma: 2000000 Join Date: Nov 2007 Location: UK Device: iPad 2, iPhone 6s, Kindle Voyage & Kindle PaperWhite	See the 2nd & 3rd pics here for some examples from the 500 (previous generation display) reader.

04-22-2008, 11:13 AM	#3
NatCh Gizmologist Posts: 11,615 Karma: 929550 Join Date: Jan 2006 Location: Republic of Texas Embassy at Jackson, TN Device: Pocketbook Touch HD3	As a nutshell explanation of ghosting (the more informative term, in my opinion): Ghosting is a residual "shadow" of the previous screen contents on the present screen. This was more of a problem in the older displays such as were on the PRS500, the newer "Vizplex" displays don't have nearly as much problem with it. The older one usually only had problems with it when the display had been idle for a period of time, and a few "page turns" would make it go away. As a real world reference, the old display's ghosting is fairly comparable to the "show through" of text on the other side of a printed page.

04-22-2008, 07:40 PM	#4
Corrective Enthusiast Posts: 32 Karma: 46 Join Date: Apr 2008 Device: PRS-505, PRS-600, PRS-650	Thanks for pics and explanation guys!

04-23-2008, 02:41 AM	#5
Dylrob Murderous Mustela Posts: 10,141 Karma: 47366760 Join Date: Oct 2006 Location: The other land of schnitzel and beer Device: iPad M1 Pro, Kindle Paperwhite	I 'd like to point out that "burn in" is technically not the same as ghosting. Burn-in is where display a static object on a screen for a prolonged period of time causes a permanent ghost-like image on the screen. True burn-in really only occurs with CRTs and Plasma displays, though it's often misattributed to temporary ghosting seen on other displays like eInk and LCD.

05-01-2008, 09:25 PM	#6
tgharold Enthusiast Posts: 37 Karma: 10 Join Date: Jan 2008 Device: Sony PRS-505	Early LCD screens (TFT?) would also suffer from burn-in issues. I remember seeing it on some Compaq laptops in the late 90s. Modern LCDs don't seem to suffer from it at all, but I'm not sure what changed.

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