LCDs Vs CRT
 

I know CRTs spit out some nasty types of energy, but wondered whether LCD
displays spit out any junk too - eg., ultra violet. Does anyone here know?

Cheers,
Mark

Re: LCDs Vs CRT
 

> I know CRTs spit out some nasty types of energy

no they don't

Re: LCDs Vs CRT
 

On 19 Aug 2003 00:31:35 GMT, back again <back@microsoft.com> wrote:

>I know CRTs spit out some nasty types of energy, but wondered whether LCD
>displays spit out any junk too - eg., ultra violet. Does anyone here know?
>
>Cheers,
>Mark


Yes your eyes pop out after a few weeks, I have to use my fingers to read my
LCD screen..

Re: LCDs Vs CRT
 

On Tue, 19 Aug 2003 13:05:27 +1200, "Rupert" <rupert@nospam.ihug.co.nz> wrote:

>
>> I know CRTs spit out some nasty types of energy
>
>no they don't
>



YES THEY DO..

Re: LCDs Vs CRT
 

back again wrote:

> I know CRTs spit out some nasty types of energy, but wondered whether LCD
> displays spit out any junk too - eg., ultra violet. Does anyone here know?
>
> Cheers,
> Mark

What sort of nasty energy do CRTs spit out? All it spits out is
electromagnetic radiation (as visible light out the front and possibly some
out the back). LCDs also emit electromagnetic radiation as well (they would
be pretty useless if they didn't).

Allistar.

Re: LCDs Vs CRT
 

In article <5Og0b.120636$JA5.2748242@news.xtra.co.nz>, "Russell Smithies" <russell.DOTsmithies@ATxtra.DOTco.DOTnz> wrote:
(snip)

>Latest "Atomic" magazine has a nice comparison of how much nasty radiation
>comes from various comp related gadgets.
>IIRC monitors 'leak' most from the rear and sides.

Yep. You can use a transistor radio as a quick and dirty 'leak detector'. Just
wave it around the monitor for a pretty good idea of (relatively) how much
interference is generated. Old monitors are lots worse than new ones :)

Bruce


--------------------------------------------------------------------
Oook !
NOTE remove the not_ from the address to reply. NO SPAM !

Re: LCDs Vs CRT
 

Allistar <allistarNO@JUparadiseNK.net.nz> wrote in
news:nef0b.12360$9f7.1420351@news02.tsnz.net:

> Subject: Re: LCDs Vs CRT
> From: Allistar <allistarNO@JUparadiseNK.net.nz>
> Newsgroups: nz.comp
>
> back again wrote:
>
>> I know CRTs spit out some nasty types of energy, but wondered whether
>> LCD displays spit out any junk too - eg., ultra violet. Does anyone
>> here know?
>>
>> Cheers,
>> Mark
>
> What sort of nasty energy do CRTs spit out?


X-Rays for a start. I don't know if other wavelengths (UV) also make it
though the glass, I assume so though.


> All it spits out is
> electromagnetic radiation (as visible light out the front and possibly
> some out the back).


Nope. CRTs also spit out crap outside the visible spectrum too.


> LCDs also emit electromagnetic radiation as well
> (they would be pretty useless if they didn't).


I am interested in whether LCDs emit _damaging_ types of radiation (eg.,
UV) as opposed to for example visible spectrum. I'm also interested in
whether the amount if any of damaging rays are so low as to be equivalent
(for example) that standing outside for 5 minutes would results in a
similar level of exposure to 8 hours LCD usage.


> Allistar.

Re: LCDs Vs CRT
 

"back again" <back@microsoft.com> wrote in message
news:Xns93DC9CC23FC90backnowherecom@130.133.1.4...
> Allistar <allistarNO@JUparadiseNK.net.nz> wrote in
> news:nef0b.12360$9f7.1420351@news02.tsnz.net:
>
> > Subject: Re: LCDs Vs CRT
> > From: Allistar <allistarNO@JUparadiseNK.net.nz>
> > Newsgroups: nz.comp
> >
> > back again wrote:
> >
> >> I know CRTs spit out some nasty types of energy, but wondered whether
> >> LCD displays spit out any junk too - eg., ultra violet. Does anyone
> >> here know?
> >>
> >> Cheers,
> >> Mark
> >
> > What sort of nasty energy do CRTs spit out?
>
>
> X-Rays for a start. I don't know if other wavelengths (UV) also make it
> though the glass, I assume so though.
>
>
> > All it spits out is
> > electromagnetic radiation (as visible light out the front and possibly
> > some out the back).
>
>
> Nope. CRTs also spit out crap outside the visible spectrum too.
>
>
> > LCDs also emit electromagnetic radiation as well
> > (they would be pretty useless if they didn't).
>
>
> I am interested in whether LCDs emit _damaging_ types of radiation (eg.,
> UV) as opposed to for example visible spectrum. I'm also interested in
> whether the amount if any of damaging rays are so low as to be equivalent
> (for example) that standing outside for 5 minutes would results in a
> similar level of exposure to 8 hours LCD usage.
>
>
> > Allistar.
>


Latest "Atomic" magazine has a nice comparison of how much nasty radiation
comes from various comp related gadgets.
IIRC monitors 'leak' most from the rear and sides.

Russell

Re: LCDs Vs CRT
 

">
> X-Rays for a start. I don't know if other wavelengths (UV) also make it
> though the glass, I assume so though.
>
>
>
>
> Nope. CRTs also spit out crap outside the visible spectrum too.
>
>
yes but is it nasty radiation? or indeed could it be beneficial radiation?

http://cnts.wpi.edu/RSH/SciAmSept2003-Hormesis.pdf

Re: LCDs Vs CRT
 

"Russell Smithies" <russell.DOTsmithies@ATxtra.DOTco.DOTnz> wrote in message
news:5Og0b.120636$JA5.2748242@news.xtra.co.nz...
>
> "back again" <back@microsoft.com> wrote in message
> news:Xns93DC9CC23FC90backnowherecom@130.133.1.4...
> > Allistar <allistarNO@JUparadiseNK.net.nz> wrote in
> > news:nef0b.12360$9f7.1420351@news02.tsnz.net:
> >
> > > Subject: Re: LCDs Vs CRT
> > > From: Allistar <allistarNO@JUparadiseNK.net.nz>
> > > Newsgroups: nz.comp
> > >
> > > back again wrote:
> > >
> > >> I know CRTs spit out some nasty types of energy, but wondered whether
> > >> LCD displays spit out any junk too - eg., ultra violet. Does anyone
> > >> here know?
> > >>
> > >> Cheers,
> > >> Mark
> > >
> > > What sort of nasty energy do CRTs spit out?
> >
> >
> > X-Rays for a start. I don't know if other wavelengths (UV) also make it
> > though the glass, I assume so though.
> >
> >
> > > All it spits out is
> > > electromagnetic radiation (as visible light out the front and possibly
> > > some out the back).
> >
> >
> > Nope. CRTs also spit out crap outside the visible spectrum too.
> >
> >
> > > LCDs also emit electromagnetic radiation as well
> > > (they would be pretty useless if they didn't).
> >
> >
> > I am interested in whether LCDs emit _damaging_ types of radiation (eg.,
> > UV) as opposed to for example visible spectrum. I'm also interested in
> > whether the amount if any of damaging rays are so low as to be
equivalent
> > (for example) that standing outside for 5 minutes would results in a
> > similar level of exposure to 8 hours LCD usage.
> >
> >
> > > Allistar.
> >
>
>
> Latest "Atomic" magazine has a nice comparison of how much nasty radiation
> comes from various comp related gadgets.
> IIRC monitors 'leak' most from the rear and sides.
>
> Russell

Well that would make sense.
They have a big metal shadow mask at the front
Much like the door on a microwave oven
A good quality heavy duty tinfoil hat should protect you at the rear and
sides.
Be sure not to expose your gonads close to one of these devices.
There has been a worldwide drop in fertility due to meatbeating in the
presence of CRTs ;-)
(Thats why woger switched.)