CRT vs. LCD

[airhendrix13]

You are correct about the phosphorus, i accidentally confused phosphorus for magnesium. But in fact light does bounce up and out of the monitor. Each time the light escapes and needs to be refreshed, that is one hert. The light inside the monitor never actually comes out of the monitor perfectly straight. I guess scattering wasn't the right word to use but the rays of light do come out at different angles causing stress to the eye.

Thank you for correcting me.

 

[Rubycon]

LCD's are 99.97% tempest proof. That should be reason there to switch for all the paranoid fanatics out there.

 

[airhendrix13]

I would also like to make it clear that this is a theory and not a confirmed fact.

Thanks!

 

[airhendrix13]

Theory 2: CRT's refresh using light, so for 60 hertz, light has to be sent through the glass cylinder 60 times. So basically your eyes are getting hit repeatedly 60 times over a certain time (a second?). Think of a dimmed down strobe light. For LCD's a liquid crystal has to be charged then discharged repeatedly, this is why ghosting exists, kind of a swell then deswell. A liquid crystal doesn't instantly get fully charged, so that time to charge and discharge may make it more comfortable on the eyes due to the lengthened time for your eyes to adjust even for that short of a time. Again just a theory.

grant2: I thank you again for correcting me but I don't agree with you about this, "Your idea about light sensitivity might make sense if people spent all their time looking at their CRTs on the peripherary of their vision". If I were to look at the sun, which I wouldn't but just go with it, the rays of the sun still hits the periphery. So I can be looking at a monitor and have it still effect my periphery.

Thanks for the input though.

 

[SparkyJJO]

I have found that my LCD is better on my eyes than my CRT was. It doesn't flicker - even the 85Hz and up while not being visible could lead to eyestrain - and there aren't those cathode rays or whatever shooting into my eyes. CRTs produce alot more radiation than LCDs do simply because of how they work. As for the brightness "problem" I just turned it down a little and problem solved

My LCD has such wide viewing angles that isn't a problem, colors are great, and ghosting is virtually nonexistent so I have absolutely no reason to go back to CRT. I can't stand them anymore

 

[Smartazz]

Thanks for the input guys, here's the problem. I have an LCD which looks better with day to day tasks and hurts my eyes less and is brighter, and a CRT same size that looks better in games due to higher resolution. What would you do?

 

[sswingle]

My doctor told me to get an LCD for my eyes.

 

[ch33zw1z]

LCDs > CRTs. CRTs gave me bad headaches after being in front of them too long...LCDs are much easier on the eyes for sure.

 

[lamere]

I'll agree that an lcd is BETTER ON THE EYES to answer the topic question.
For quality of piture/color accuracy, CRT's are still king

 

[elkinm]

CRTs are still easier on my eyes, at least when running at 75+Hz and ~6500 color temperature.

LCDs, I have to battle to get a clean sharp picture and anything other then native resolution is just impossible on my eyes, and thicker text if I use clear type is murder, maybe even worse then using non-native resolution.

The lack of color purity if without a true bright coating (different names) makes it look like a 9300 temperature display which is too bright. I tweak to lower brightness and tweak colors to lower color temperature.

I stare at 8+ LCDs at work constantly and battle with the slightest distortions or imperfections, and help others who are amazed how tweaking makes things easier on their eyes, although most don't notice the distortions so I have to ask to tweak to help my own eyes.

It is amazing how many regular people use their displays at 60Hz and 9300K temp, if they only set it to 75 or even 85Hz and 6500K it would be just so much better.

LCDs need brightness coatings. NECs with the coating are so much easier on my eyes. It just smoothes out the colors. I can use nearly any laptop with the brightness coating.

 

[dyso]

The main difference between LCD and CRT are that LCD are made of diods. This diods, if activated, is visible ony if iluminated. But the tension is very, very low.

The catodic monitors on the other hand have a different principle. Behind the screen there is an electron cannon witch emits accelerated electrons on the screen. The screen have a substance with the capability to emit light if bombed-proof with electrons.This is the reason catodic monitors are more wide than LCD`s, becouse must be room for the coil of the electron cannon behind.
But from this impact of the electron with this surface the result is not only light but nuclear particles as well. It is a side effect. Alfa and beta is not so penetreant, but gamma particles is more dangerous. For this reason the glass in front of the screen had a lot of plumbum inside, due to the fact that plumbum stop the radiation. When you are going to the dentist for an X ray, you are dressed in a coat of plumbum to reduce unnecesary risk of irradiation in other parts of your body.
The Roentgen devices has a similar priciple , only that in this case the radiation are encouraged, it is the purpose, not a side effect. Electons hit a special surface with emit gamma radiation. Of course, the quantity of particles is much different also.

The LCD on the other hand are working with diods, and diods do not emit radiation. And the voltage is very low, meanwile the catodic m. have a high voltage therefore electromagnetic radiation.

Althought less healthy than LCD`s, CRT seems to have a better image yet.

I am romanian, and I do not speak english perfectly.

Best regards

 

[Cogman]

I didn't read the whole thread, so sorry if Im repeating. LCDs are better, less stressful on your eyes then CRTs are. The reason is because LCDS have a constant emitance of light where as CRTs basicly Flash a light at you. Because of the light flashing it causes stress (anyone notice that with some Floresent Light bulbs) Flickering is the headache causer.

 

[SoundTheSurrender]

you forgot radiation from crts.

 

[cmdrdredd]

Originally posted by: djmihow
you forgot radiation from crts.

so you're saying you get cancer from it?

To be honest a really good CRT is superior in every way to an LCD for graphics work. Everything in the printing industry is alot better on a CRT because of their ability to produce truer color and an overall richer picture. Some LCDs are too bright and no amount of calibration makes it right for graphics work where every color has to be perfect.

 

[potato28]

Originally posted by: cmdrdredd

Originally posted by: djmihow
you forgot radiation from crts.

so you're saying you get cancer from it?

To be honest a really good CRT is superior in every way to an LCD for graphics work. Everything in the printing industry is alot better on a CRT because of their ability to produce truer color and an overall richer picture. Some LCDs are too bright and no amount of calibration makes it right for graphics work where every color has to be perfect.

Yes, but you can get a really good LCD that will out do the higher end CRT. There's one NEC that actually outperforms most of the CRT's because of it's panel and the coating. PM xknight for info that I don't have.

 

[cmdrdredd]

Originally posted by: potato28

Originally posted by: cmdrdredd

Originally posted by: djmihow
you forgot radiation from crts.

so you're saying you get cancer from it?

To be honest a really good CRT is superior in every way to an LCD for graphics work. Everything in the printing industry is alot better on a CRT because of their ability to produce truer color and an overall richer picture. Some LCDs are too bright and no amount of calibration makes it right for graphics work where every color has to be perfect.

Yes, but you can get a really good LCD that will out do the higher end CRT. There's one NEC that actually outperforms most of the CRT's because of it's panel and the coating. PM xknight for info that I don't have.

Absolutely not. Ask what monitors all the print shops and service bureaus that do any real graphics work use. Chances are it's high end Sony or Mitsubishi CRT displays. They aint cheap either. That's where LCD totally beats CRT the price of the screen for the money. Plus the smaller footprint.