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Screen Saver still needed?

It's interesting when I see screen savers shipped and turned on with today's notebooks and computers bundled with Liquid Crystal Display (LCD). Screen saver is a technology invented decades ago to prevent static images from burning into cathode ray tube (CRT) monitors. Originally screen saver were as simple as blanking the screen after inactivity time-out. As processing power increased, new fancy screen savers, such as aquarium, took over.

Today, notebook and laptop computers have built-in LCD. And many desktop computers today are also shipped with LCD. Unlike CRT monitors, LCD's do not have the burn-in effect. Therefore, you can leave static images on the LCD as long as you desire. Thus, it begs the question: "Do we still need screen savers?"

Chieh Cheng
Tue, 19 Jul 2005 13:40:09 -0700

I purchased an lcd monitor several months ago. it just occured to me while I was watching my screen saver did I really need one I thought not, but its always reassuring to have confirmation on such matters. thank you kindly.

lawrence wolf
Fri, 9 Dec 2005 06:11:48 -0800

Unfortunately you are only partially right. Yes, it is true to say that LCDs do not have image burn in problems, BUT they do have what is referred to as "image persistence." Now this is NOT a permanent effect, according to many LCD manufacturers, but I've got to say, I have had the same Excel toolbar showing up on my work pc's monitor for the past six months without any fading. Once again according to LCD manufacturers there are a couple ways to deal with this:
1) Turn off you monitor for an extended period of time. They neglect to give an appropriate time period, but I'm sure 20-30 years will do...
2) Leave a solid bright color on as a background for (once again) an extended period of time... I'm starting to sense a pattern here.
3) Use a screensaver when the monitor is not in use.
Strangely enough, I've tried all of these, and nothing has seemed to work. I can't leave my monitor off for more than twelve hours at a time, because I need it for work. I cannot leave a solid bright color on for an extended period of time for the same reason. And I do use a screensaver, but it is never on for more than approximately 30 minutes a day, when I am away for lunch.
No my friends, in some cases, excel for 10 hours a day+lcd screen=excel whether you want it or not. Though its good to know that firefox has an unusable excel toolbar...

Jason Richmond
Wed, 4 Jan 2006 04:36:00 -0800

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