Guest guest Posted March 20, 2006 Report Share Posted March 20, 2006 > But I use a computer quite a lot. Especially lately. > > I avoid CRTs, and use mostly the LCD screens. > > What is known about these new " flat " LCD screens? Do lots of > folks have trouble from exposure to them? In general, people have an easier time with the LCD screens than the CRTs. But it's not universal -- for example, see this page for reports from people who tolerated their CRTs, but could not tolerate their LCDs: http://cloanto.com/users/mcb/19960719lcd.html I also fall into this camp. LCDs are worse for me than CRTs. And the methods I have used to make CRTs better don't work as well for LCDs. LCDs are often advertised as having no (or low) EMF. However, all you need to do is turn on a portable AM radio and put it next to an LCD, and you'll see that it's putting out a lot of RF interference. Also, although an LCD is typically run off of a DC power supply, internally it must use a transformer to run the high-voltage AC florescent backlight. Plus, the EMF source for a CRT monitor is mostly in the back of the tube, so it's further away from you than the EMF source in an LCD. There was a time (5 years ago) where my tolerance for LCD monitors was so bad that I could only stand to be in front of them for 5 minutes at a time, this with a grounded electric glass shield in front of it, and the backlight brightness turned down to a minimum. These days, I sit in front of a CRT for 8-10 hours a day with the brightness set at normal, so things have obviously improved for me. :-) As for alternates to LCDs, there are plasma screens, but I find these less tolerable than CRTs or LCDs. And coming in the future will be LCD monitors with the florescent backlight replaced by LEDs (these are already available, but very expensive), and also Organic LED monitors needing no backlight (only available now in MP3 players and cellphones) Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 14, 2006 Report Share Posted September 14, 2006 Sudduth wrote: > Does anyone have links to data on the EMF levels generated by laptop > computer screens and recommendations on distances (I've heard one > foot) and length of exposure even at a safe distance. I suppose it depends on how sensitive you are... I remember a time when I had averse effects within a minute of being 7 feet from a laptop... Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 4, 2007 Report Share Posted March 4, 2007 Hi Tammy: Yes the computer screens can cause seisures and migranes., There are certain type of screens that are less harmfull. I think they are called analog. But more importantly, the reason why it happennes to you, is because your brain is sensitive to this. Not everyone experiences this, of course you know that. Try doing the following and see if it gets better for you. Eliminate dairy products, and take magnesium oxide and vitaminb-50, drink a minimum of 1 quart of water a day. for a couple of days and then work on your compu. See if this helps. good luck LInda tmcle1474 <mclem64@...> wrote: ANYONE HERE KNOW IF DIZZINESS WHILE LOOKING AT THE COMPUTER SCREEN, TV, ETC. IS CAUSED BY SEIZURES OR AN INNER EAR PROBLEM???? THANKS TAMMY IN MISSISSIPPI --------------------------------- Get your own web address. Have a HUGE year through Small Business. Quote Link to comment Share on other sites More sharing options...
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