2015-04-30 3:26 GMT+02:00 Gary Roach <gary719_li...@verizon.net>: > On 04/29/2015 10:30 AM, Frederic Marchal wrote: >> >> On Wednesday 29 April 2015 09:08:41 Gary Roach wrote: >>> >>> On 04/28/2015 05:27 AM, Francesco Ariis wrote: >>>> >>>> Hello, >>>> >>> This doesn't answer you question exactly but I would like to point out >>> that screen savers are useless with lcd / led screens. They were >>> originally meant to protect CRT's from burn in when the electron beam >>> stayed in the same place too long. I don't use them anymore. So unless >>> you just like the pretty pictures, turn them off. >> >> Not quite right. I have seen LCD screens where the login screen was burned >> in >> the screen leaving a clearly visible and annoying shadow at all time. >> > I bow to your experience but, for the life of me, I can't see how this could > happen with the physics that is involved. I suppose that the liquid crystal > material could deteriorate with time but I thought that the stuff was pretty > indestructible.
I saw it on two LCD monitors of the same brand. I can't remember the brand. They were among the first LCD monitors I installed at a customer's production site in 2004. Nobody cared about using a screen saver as LCD monitors were not supposed to need one. The monitors were lit 24/7 with the login screen displayed most of the time. After a few years, the shadow was permanently visible. I'm not sure the liquid crystal was at fault because the burn in was visible even when the monitor was turned off. It looked more like the login screen was printed on the polymer making the front sheet. Frederic -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/CAJ7R-8Qb3LHzfFAmxa4vanWrZcZvN-skaL=4nzzgrg70gmu...@mail.gmail.com
