why are LCD's easier on the eye than CRT monitors?

[JRW]

Im one of those people that arent bothered by CRT refresh and actualy had more eye strain with an 2001FP LCD,it was insanely bright even with the brightness set on 0 and would get to me after prolonged use. Then there was the poor black levels which looked awful with my CRT sitting next to it.. I also didnt like how the LCD had the commonly used rough plastic matte screen which actualy affects image quality ..its like looking through a grainy screen when compared to the transparent glass on CRTs. I think all LCD should use the glossy clear type screens used on some Sony & NEC models.

 

[VIAN]

no flicker whatsoever and sharper.

...and no radiation.

 

[jiffylube1024]

Originally posted by: Solodays
I have been using this 17" crt for about 2 years at 60hz and i dont see any flicker at 60.

when you say it drawns 75 times a sec at 75 hz, so that means it flicks 75 times a sec? isn't the lower the refresh rate the lower it flicks then?

The lower the refresh rate, the fewer times the screen redraws itself. Remember, it is not a solid image you are seeing, it is an illusion of a solid image. Because of this, we can detect flicker at lower refresh rates. Above 100 Hz, for example, it's tough to see flicker at all because it's redrawing the screen 67% more times per second than 60 Hz.

If you don't see any flicker at 60Hz, then consider yourself extremely lucky. For the majority of PC users, 60 Hz ranges from 'kind of flickery' to unusably flickery looking. 60Hz gives many people headaches. A few very good quality Sony Trinitrons can actually be bearable at 60 Hz, but generally speaking, 75Hz is necessary for most users.

If you use 75 Hz for a couple of months, you will probably notice how much 60 Hz flickers if you drop back down to it. Consider yourself lucky 60Hz looks fine, although it can cause eye strain and fatigue so watch out. 75Hz and up is recommended if you're going to be looking at that screen for more than a couple hours a day.

Originally posted by: Solodays
lcd monitor are exactly the same as lcd tv's. howcome the price is so different from each other. on average you could get a 17" lcd monitor for about $350 and that's about $20 an inch, on the other hand a 37 lcd tv cost around $2000 and that's about $54 an inch. so basicly lcd tv are more expensive than pc lcd monitors. WHY?

LCD's are extremely cheap to produce up to about the 20" - 25" range. After that, the cost to manufacture goes up tremendously as there are more defects, etc.

Above about 30", you cannot economically make an LCD-TV, so they connect 2 to 3 panels together to make a single LCD-TV (such as in the Sony 40" and above LCD-TV's).

Furthermore, LCD-TV's are in a TV market that already has an established price range ($1500 and up, generally speaking, for screens over 40"). LCD-TV's are priced competitive to other technologies (eg conventional CRT rear-projection TV's, which have plummeted in price, Plasma TV's and DLP TV's). They wouldn't price LCD-TV's that much below the competition because they can afford to charge similar prices and make much larger margins on each unit sold.

 

[BillyBobJoel71]

Originally posted by: BFG10K
One thing that annoys me about LCDs is the annoying greyish tinge they apply to the image. It's like looking through something to see the image rather than looking directly at the image.

You need to adjust your contrast and brightness. If you have a crappy LCD than you are right, that is why you must be very careful when lookgn at monitor specs, they are very tricky... Most people look at brightness and viewing angles and screen res, but the most important things are never advertised.

 

[JimmyH]

Going from a 21" trinitron to a 19" LCD and my eyestrain is gone Never knew I had eyestrain till I switched. I miss the CRT when it comes to FPS games and true black, but you can't have it all.

 

[ITPaladin]

You have to remember there are two advanced text font options in the display panel for LCD and CRT.
Use the Clear Type for LCD. If you use it for CRT it may be worse for you.
On my HP branded Sony that JRW has, I use Opera to zoom webpages for comfortable, easy text reading.
It is one reason I use it over IE. IE doesn't do it right or at all.

 

[SPARTAN VI]

Originally posted by: SuperTyphoon

Originally posted by: BFG10K
One thing that annoys me about LCDs is the annoying greyish tinge they apply to the image. It's like looking through something to see the image rather than looking directly at the image.

You need to adjust your contrast and brightness. If you have a crappy LCD than you are right, that is why you must be very careful when lookgn at monitor specs, they are very tricky... Most people look at brightness and viewing angles and screen res, but the most important things are never advertised.

I encountered that constrast problem when I was testing the analog connection. Switched to DVI a minute later and BAM! Eyegasms.

 

[JimmyH]

I always wanted to try BNC connectors for my trinitron. Anyone use them and did it help eyestrain?

 

[Solodays]

Originally posted by: McPudd
When I stopped using CRTs my monitor setup was:
Monitor1 ViewSonic P817 21" shadow mask
Monitor2 ViewSonic P225f 22" aperure grille
-both set to 1600x1200 @ 85Hz
Various Matrox and ATI cards (last used w/ATI Radeon 9800XT)

I now use:
2 x 21" Samsung Synchmaster 213T TFTs
Monitor1 DVI-I port
Monitor2 VGA port
-both set to 1600x1200 @ 60Hz native.
ATI Radeon 9800XT

I can spend as many hours as I like doing anything I wish and never experience any vision issues
with the TFTs. No artifacts in gaming either (ie BF1942/BF2).

After a few hours of text reading on the above CRTs, I would get eye-strain. Especially with the aperture grille model.

I will never go back to CRTs.

you set 60hz on the lcd and dont have any problems?

 

[McPudd]

quote:
________________________________________
Originally posted by: McPudd
When I stopped using CRTs my monitor setup was:
Monitor1 ViewSonic P817 21" shadow mask
Monitor2 ViewSonic P225f 22" aperure grille
-both set to 1600x1200 @ 85Hz
Various Matrox and ATI cards (last used w/ATI Radeon 9800XT)

I now use:
2 x 21" Samsung Synchmaster 213T TFTs
Monitor1 DVI-I port
Monitor2 VGA port
-both set to 1600x1200 @ 60Hz native.
ATI Radeon 9800XT

I can spend as many hours as I like doing anything I wish and never experience any vision issues
with the TFTs. No artifacts in gaming either (ie BF1942/BF2).

After a few hours of text reading on the above CRTs, I would get eye-strain. Especially with the aperture grille model.

I will never go back to CRTs.
________________________________________


you set 60hz on the lcd and dont have any problems?

Yes. 1600x1200 60Hz is native.
That is the setting these particular monitors are supposed to be set to.
The Hz settting has a different meaning between CRTs and LCDs.

 

[Griswold]

Originally posted by: BenSkywalker

No matter how you twist it, after 8h in front of a good (not one of those trash cans that are too bright) LCD, your eyes will have suffered less than the eyes of somebody doing the same with a CRT of high quality.

Certainly not always the case. LCDs cause rather serious eye fatigue quickly for those whose eyes focus quickly(not to mention nausea). Also those with better levels of vision can bring themselves into headache territory extremely quickly as their eyes keep trying to focus between the screen door and the image it is displaying.

And why would that be? And why would that not happen with a CRT?

 

[sandeep108]

Much much less eyestrain on LCD. Hours of use, no problem. I used 85 Hz on CRT and had a sharp flat CRT, but still after a couple of hours, needed a break. Not so with LCD. In fact I am going to spend on buying LCDs and replacing my good CRTs I still have.

Somehow also I find cleartype actually increases eyestrain for me on my LCD. I find it makes text a little too fuzzy for my liking. I actually like the default pin sharp text on my LCD.

Maybe the difference between 19" LCD and crt is more striking because of same resolution with a bigger screen and also as compared to 17" LCD or 1600x1200 with 20" - just a wee bit bigger?

 

[jiffylube1024]

Originally posted by: BenSkywalker

No matter how you twist it, after 8h in front of a good (not one of those trash cans that are too bright) LCD, your eyes will have suffered less than the eyes of somebody doing the same with a CRT of high quality.

Certainly not always the case. LCDs cause rather serious eye fatigue quickly for those whose eyes focus quickly(not to mention nausea). Also those with better levels of vision can bring themselves into headache territory extremely quickly as their eyes keep trying to focus between the screen door and the image it is displaying.

I think that's only you Ben .

Are you referring to LCD monitors (eg 17", 20", 24") or LCD-TV's? It's very tough to see the screen door effect on LCD's unless you're really looking for it.

If it was an LCD, then how far away were you from the screen?

I developed bad headaches with my LCD monitor about a foot and a half away from my face (it was at the edge of my desk to make it appear bigger). Took me awhile to figure out what was causing those migraines. Slid it back another foot to where it should be (middle of the table) and no more headaches whatsoever...