LCD better for your eyes than CRT??
- Thread starter Mustanggt
- Start date
LCD screens are considerably better for the eyes. I spend the better part of my day and night in front of computers. At work, we use 18" LCD's (a Hewlett Packard HP1810 model). After the first week I used one of these I could no longer stand any CRT monitor. My explanation is that with a CRT your eyes and brain are forced to do more work to mentally put together the image that is displayed. Your eyes get fatigued, and your brain is overworked, together this cause stress headaches and eyestrain over time. I'm almost sure my vision has been deteriorated over the past few years. When I come home at night I can't use my 19" Viewsonic PS790 (top of the line CRT 3 years ago) for more than 20 minutes without my eyes going all goofy and blurry. LCD technology has impoved a lot in the last year or 2. You can play games on the newer DVI capable models without any problems, and they now have suffient brightness and contrast. Yes the really good models are pricy, but I don't care how cheap or big any CRT is anymore, this is my eyes I'm talking about and they deserve more than what even the best flatscreen or Sony Trinitron CRT monitor can provide.
I'm currently shopping for an LCD for my home computer and pretty much decided on either the Samsung 181t, or possibly the brand new NEC LCD1850E. 17" LCD's are a little less, but I find 1280x1024 resolution in an 18" model produces very well balanced image size/resolution ratio.
I'm currently shopping for an LCD for my home computer and pretty much decided on either the Samsung 181t, or possibly the brand new NEC LCD1850E. 17" LCD's are a little less, but I find 1280x1024 resolution in an 18" model produces very well balanced image size/resolution ratio.
- Dec 11, 1999
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Thankyou, wavephorm I thought it was just me, I have a very good CRT monitor yet my eyes will not let me spend long amounts of time at it, with that said any thing that will allow me to not get eyestrain is better to me. I think its time to get rid of CRT.
RalfHutter
Diamond Member
- Dec 29, 2000
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I spend at least 10-12 hrs a day during the weekends and 2-3 hrs daily during the week in front of my LCD at home. I have no trouble with my eyes or headaches. When I'm at work or someone else's house using a CRT my eyes start feeling real bleary after 30 mins or so. I just can't handle a CRT for any amount of time. Flickering? I don't know because some of the CRTs I used have pretty high refresh rates.
Regardless of monitor type make sure you're working in a well lit area. Also make sure the monitor's brightness is as strong as you can stand -- you want lots of light coming into your eyes for the best focus, especially if you don't have perfect vision. And up that refresh rate!
Crank your refresh rate. The bigger the monitor the higher it needs to be for comfort.
LCDs are better in that respect since they don't refresh at all. But if you set the refresh on your monitor high enough you should be fine.
LCDs are better in that respect since they don't refresh at all. But if you set the refresh on your monitor high enough you should be fine.
LCD are definitely better for your eyes. LCDs produce 0% radiation, and radiation is that destroys your eyes. Remember, you can always buy one monitor or another, but you'll never be able to buy new eyes, and if LCDs cost more than regular monitors, price should not be an issue, since health is more important than any flat screen or dpi features.
I'm no expert on this stuff, but I'm wondering, do those of you who can't look at CRT's watch television? Granted you sit further away, but in terms of resolution and refresh it has to be worse than any monitor these days doesn't it?
- Dec 11, 1999
- 3,278
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- 71
thanks for Info everyone, I have spent about 5 years looking at cheap CRT monitors for about 5 to 8 hours a day, last year I decided to buy a good CRT and got this Mitsubisji Diamond plus 91, this monitor is very Bright has outstanding image Quality, but I just cant look at it for a long time, up untill the age of 35 my eyes never bothered me but now they are and I need to take care of that like andrey
said you cant buy a set of new eyes. I think the radiation that these big 19" throw out might be to much for old eyes.
said you cant buy a set of new eyes. I think the radiation that these big 19" throw out might be to much for old eyes.
I do not know of any studies of scientific proof one way or the other. I have heard people say that they prefer LCD?s and I have heard others say the opposite. Personally I think there is more to the issue than simply the technology used.
Proper ergonomics and lighting play just as an important role as the technology used. You are likely to find several things that can cause eyestrain, including glare on walls and reflections on the computer screen itself. Minimizing reflections and reducing ambient light are particularly important aspects of your physical-viewing environment. When your monitor power is off, it may surprise you to find that one of the reflections that you see is your own! In order to minimize reflections of things in front of your screen other than lights - including your own face - it helps to reduce the general light level (ambient illumination). Use window shades, blinds, or drapes to block out excessive sunlight, also reduce the internal ambient light if outside light cannot be reduced. Use proper lighting, overhead fluorescent lights tend to be an excessively bright source of ambient illumination, in addition to facilitating reflections. Reduce the lighting by using fewer light bulbs or use lower intensity bulbs and tubes. I recommend using indirect lighting with a dimmer control, such as stand up halogen lamps that reflect light off the ceiling.
Once you have your environment set up, reduce the contrast setting of the monitor. Resist the temptation to run your monitor too bright. White should be a pleasant white, it doesn't have to illuminate your room. Operate your monitor only at a comfortable brightness / contrast level. This may help your eyestrain. There are many sites on the Internet that explains how to set up the work environment, one of them can be found at the following link.
http://www.bigmonitors.com/learning_center/technology_101/ergonomics.htm
Good Luck
Proper ergonomics and lighting play just as an important role as the technology used. You are likely to find several things that can cause eyestrain, including glare on walls and reflections on the computer screen itself. Minimizing reflections and reducing ambient light are particularly important aspects of your physical-viewing environment. When your monitor power is off, it may surprise you to find that one of the reflections that you see is your own! In order to minimize reflections of things in front of your screen other than lights - including your own face - it helps to reduce the general light level (ambient illumination). Use window shades, blinds, or drapes to block out excessive sunlight, also reduce the internal ambient light if outside light cannot be reduced. Use proper lighting, overhead fluorescent lights tend to be an excessively bright source of ambient illumination, in addition to facilitating reflections. Reduce the lighting by using fewer light bulbs or use lower intensity bulbs and tubes. I recommend using indirect lighting with a dimmer control, such as stand up halogen lamps that reflect light off the ceiling.
Once you have your environment set up, reduce the contrast setting of the monitor. Resist the temptation to run your monitor too bright. White should be a pleasant white, it doesn't have to illuminate your room. Operate your monitor only at a comfortable brightness / contrast level. This may help your eyestrain. There are many sites on the Internet that explains how to set up the work environment, one of them can be found at the following link.
http://www.bigmonitors.com/learning_center/technology_101/ergonomics.htm
Good Luck
I tend to favor LCD's for general office work - text is much sharper, probably because each pixel on an LCD is a discrete unit.
If I'm playing games or watching movies I think CRTs still have the edge.
If I'm playing games or watching movies I think CRTs still have the edge.
zephyrprime
Diamond Member
- Feb 18, 2001
- 7,512
- 2
- 81
<< LCDs produce 0% radiation, and radiation is that destroys your eyes >>
That's just not correct. It's not the radiation that hurts your eyes. People worry about the radiation from monitors because of cancer risks which may or may not be real. Also, LCDs do produce radiation as anything with an accelerating electric charge will produce EMF radiation.
I think the reason that LCD's are easier on the eyes is three fold:
1. Sharp edges on pixels
2. Pixels are more sharply localized in terms of depth in your field of view.
3. LCD pixels have longer persistance than phospor pixels so there's essentially no flicker.
After I switched to LCD for a few months, I can honestly say that I will never switch back to CRT for long-term usage.
<<
<< LCDs produce 0% radiation, and radiation is that destroys your eyes >>
That's just not correct. It's not the radiation that hurts your eyes. People worry about the radiation from monitors because of cancer risks which may or may not be real. Also, LCDs do produce radiation as anything with an accelerating electric charge will produce EMF radiation.
I think the reason that LCD's are easier on the eyes is three fold:
1. Sharp edges on pixels
2. Pixels are more sharply localized in terms of depth in your field of view.
3. LCD pixels have longer persistance than phospor pixels so there's essentially no flicker. >>
zephyrprime,
You're incorrect. It is a well known fact that LCD screens do not emit radiation. Please don't state your opinion as a fact.
Here are couple links for you to prove that:
http://www.windows-help.net/features/monitor-upgrade.html
<<
Ugrading to LCD (Liquid Crystal Display) computer monitor is the optimal solution to completely eliminate radiation hazards. LCD's do not emit radiation.
>>
http://www.touchscreens.com/compare_lcd_crt.shtml
<<
Besides being compact and space saving, LCD displays offer several other benefits. For one, LCD monitors consume much less energy than CRT monitors. This makes the LCD great for laptop and portable computers. Secondly, CRT monitors are known to emit harmful radiation, whereas LCD monitors do not.
>>
I completely disagree with the article by Sandra Underhill especially the final statement the ?LCD's do not emit radiation?. All electronic equipment radiates RFI. Amounts vary by make and model. Simply passing an electric current through a wire will create some small amount of RFI.
In terms of radiated emissions, LCDs are cleaner in terms of low-frequency electric and magnetic fields. (I am not aware of any studies, which have firmly established a link between these fields and health problems).
LCDs may, in some cases, are worse than a CRT monitor for radiated high-frequency noise (RFI). In the monitor industry we are required to measure RFI and products typically fall into two categories, FCC Class A and FCC Class B. A is intended for commercial use (B) the stricter standard for home uses. In fact some airlines are now restricting or eliminating the use of notebook computers during flight out of fear that they will interfere with navigational equipment.
I've measured some LCD?s on the test range that were well above the FCC required levels even higher than many CRT products I have tested. Many things can cause RFI, poor termination the video cabling, poor shielding the internal logic including the drivers for the panel itself.
In the low frequency magnetic spectrum yes LCDs are clear winners over CRTs? again however I know of know study linking magnetic emissions to health problems. In fact many people are promoting magnetic wristbands for the relief of arthritis.
Anyone concerned about emissions from CRT or LCD monitors should read this
LINK
In terms of radiated emissions, LCDs are cleaner in terms of low-frequency electric and magnetic fields. (I am not aware of any studies, which have firmly established a link between these fields and health problems).
LCDs may, in some cases, are worse than a CRT monitor for radiated high-frequency noise (RFI). In the monitor industry we are required to measure RFI and products typically fall into two categories, FCC Class A and FCC Class B. A is intended for commercial use (B) the stricter standard for home uses. In fact some airlines are now restricting or eliminating the use of notebook computers during flight out of fear that they will interfere with navigational equipment.
I've measured some LCD?s on the test range that were well above the FCC required levels even higher than many CRT products I have tested. Many things can cause RFI, poor termination the video cabling, poor shielding the internal logic including the drivers for the panel itself.
In the low frequency magnetic spectrum yes LCDs are clear winners over CRTs? again however I know of know study linking magnetic emissions to health problems. In fact many people are promoting magnetic wristbands for the relief of arthritis.
Anyone concerned about emissions from CRT or LCD monitors should read this
LINK
andrey radiation does hurt our eyes but that also causes cancer ( well everything does heh)
but LCD does create radiation. it just produces less radiation then a big CRT
but LCD does create radiation. it just produces less radiation then a big CRT
<< I have decided to try a LCD, now I have to find the best 17" i can get for around $600 >>
I recommend the Planar 17.4" which you can buy from Dell. Just wait for a Dell 10% or 15% off coupon which they have like every 2 weeks and you can get the monitor for like 600 shipped. It's one of the best LCd's for the price with little to no blurring during games.
i agree re: the price shouldn't be an issue b/c health is more important than any other factor, at least for me. Also LCDs will never create a seizure, the way a CRT can, and since I'm eplileptic, it's worth it. on a diff note, i think even 1 dead pixel is 1 too many.
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