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What's the largest size computer monitors come in?

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Vieo

Member
In these catagories, what's the largest size computer monitors come in?: CRT, LCD, and Plasma.

So far the largest CRT I've seen is 22 inches. o_O


EDIT:

Thomas8354 said:
With S-Video, you could hook up a huge screen to a computer, so really, its how big do TVs come

Excluding TVs! :lol
 
I use two 22' crt monitors at work on my workstation, which are (according to our IT guy) the largest they make able to display a decent resolution (1600x1200+).

You can hook a computer up to a LCD monitor/tv and get larger, but the rez won't be that high.
 

dkeane

Member
This one's nice!

Apple 30" Cinema - HD

30-inch (29.7-inch viewable)
2560 x 1600 optimal resolution
16.7 million colors
DVI Display Connector
2 port USB 2.0 Hub
2 FireWire 400 ports
 

teh_pwn

"Saturated fat causes heart disease as much as Brawndo is what plants crave."
Carmack had a massive CRT. I think it was 26" but I'm not sure. I've seen a bunch of widescreen 24" CRTs.

Yea, I've seen a pic with that. I think he's insane to program all the time on that. LCDs are better for the eyes.
 
I'm staring at a 36 inch CRT now, but of course I'm at work and not home. Its' a Mitsubishi... at first I thought it was a TV, but it's a monitor, I checked the connections.
 

NetMapel

Guilty White Male Mods Gave Me This Tag
Just get a big plasma TV or something and hook it up on your computer :p That's what I have !
 
Probably the most economical way to get a huge yet appropriate quality computer monitor without going with a projector is a DLP rear projection set. Only 1280x720, but you can get 46" easily for $2500.
 

NohWun

Member
If you want big, set up multiple projectors into a video wall.
Of course, that will eat a lot of power. Also, 4 XGA projectors
would only get you 2048 x 1536.

For low-power, I'd recommend the big Apple LCD.

You didn't say if you wanted lots of pixels or just pure size.
 

DopeyFish

Not bitter, just unsweetened
ok i bought an LCD monitor... Samsung 710N 17"


now my dilemma is this....

i'm thinking about using it as a projector (just need to get the lens/mirror)

Now... it has an average candela of 300 cd/m2 so i'd assume about 500 for highest setting.... what would the lumens of the monitor be? I can't really get a clear answer with googling

i need to know the lumens value before i go ahead with it since well... i wanna know if i have to tear it apart and start working on getting other parts... or i can just lay the monitor down on the projector and easily work from there

(surface area of monitor is 0.095m2)

if all else fails i'll have to find someone with a lumens rater
 

NohWun

Member
If you're thinking about using an LCD monitor for a projector, you can forget about using the included backlight. People who do this tear out the backlight and put the bare LCD on an overhead projector. The light is several orders of magnitude brighter. Just do some googling and you can find descriptions of such projects. A 15" LCD works better (fits more easily on an unmodified projector).

No one can tell you what the resulting lumens will be, since there are so many variables. It will be based upon the starting light brightness, the optical system that focuses the light, and the transmittance of the LCD. Overhead projectors come in a wide range of power, depending upon the expected screen size and environment.

From the starting brightness of the overhead projector, you can estimate that 50% of the light will be lost due to polarization, and then another 66% of the remainder will be lost due to the color filters (each sub-pixel only passes through 1 primary color over its area).
 

DopeyFish

Not bitter, just unsweetened
NohWun said:
If you're thinking about using an LCD monitor for a projector, you can forget about using the included backlight. People who do this tear out the backlight and put the bare LCD on an overhead projector. The light is several orders of magnitude brighter. Just do some googling and you can find descriptions of such projects. A 15" LCD works better (fits more easily on an unmodified projector).

Well I was contemplating tearing up a 15" LCD and making my own casing and using 2 25W fluorescent bulbs which are rated at about 2000 lumens (i had one tested... they're damn bright)

but my main dilemma would be if I could get the light evenly spread across the LCD...

i would rather use the bulbs and making my own casing because the fact projector bulbs are HOT, expensive... and having a bulb life of a few hundred hours while the fluorescents have a rating of over 10,000.
 

NohWun

Member
DopeyFish said:
Well I was contemplating tearing up a 15" LCD and making my own casing and using 2 25W fluorescent bulbs which are rated at about 2000 lumens (i had one tested... they're damn bright)

but my main dilemma would be if I could get the light evenly spread across the LCD...

i would rather use the bulbs and making my own casing because the fact projector bulbs are HOT, expensive... and having a bulb life of a few hundred hours while the fluorescents have a rating of over 10,000.

Fluorescent bulbs don't work for projectors. The light source must be a point source.
 

DopeyFish

Not bitter, just unsweetened
NohWun said:
Fluorescent bulbs don't work for projectors. The light source must be a point source.

Which is why it's my main dilemma :)

I was thinking of using mirrors to concentrate the light upwards, another problem would be no way of adjusting brightness but i might get a slab of 10-15% tinted glass just in case.

I don't think using the fluorescents would be a problem... i think. because some people have used TVs, the lens and a mirror and been able to get a projection that way... but for me... eh. i'm trying to short cut while getting the best results possible. I'm on a strict budget :p
 

NohWun

Member
Basically, a projector needs a collimated light source (collimated means that all the light rays are parallel to each other). You can get that from a point source and a parabolic mirror. Any light rays that aren't going in the "right" direction just get wasted.

Obviously you can project something with any kind of light source. It's just a question of efficiency.
 

DopeyFish

Not bitter, just unsweetened
NohWun said:
Basically, a projector needs a collimated light source (collimated means that all the light rays are parallel to each other). You can get that from a point source and a parabolic mirror. Any light rays that aren't going in the "right" direction just get wasted.

Obviously you can project something with any kind of light source. It's just a question of efficiency.

that's why i'd be using 2 bulbs and mirrors to hopefully reflect it upwards...

i know it'd be a little sloppy... but if i can hit about 1800+ lumens at the lens... it should be a decent projection i think
 

NohWun

Member
Think about it like this:

For a direct-view monitor, you want all the light coming out to go out in all directions. That way, you can look at the screen from any angle and it will appear equally bright from all angles.

For a projection system, you want all the light coming out to first go in a straight path to the screen, and then from there it should bounce off and go in all directions. Any light that doesn't make it to the right part of the screen first is going to do one of two things: either just get completely wasted (absorbed somewhere in the projector), or else it will hit some other (wrong) part of the screen and causing blurring or wash-out (loss of contrast).

If you were to stare directly into the beam of a typical projector, it would feel like staring into the sun (the light is so concentrated). So if you can look at your bulbs and not feel the same way, then it's probably not bright enough.

But if you enjoy a project, don't let me discourage you. The fun is in the doing.
 

DopeyFish

Not bitter, just unsweetened
NohWun said:
Think about it like this:

For a direct-view monitor, you want all the light coming out to go out in all directions. That way, you can look at the screen from any angle and it will appear equally bright from all angles.

For a projection system, you want all the light coming out to first go in a straight path to the screen, and then from there it should bounce off and go in all directions. Any light that doesn't make it to the right part of the screen first is going to do one of two things: either just get completely wasted (absorbed somewhere in the projector), or else it will hit some other (wrong) part of the screen and causing blurring or wash-out (loss of contrast).

If you were to stare directly into the beam of a typical projector, it would feel like staring into the sun (the light is so concentrated). So if you can look at your bulbs and not feel the same way, then it's probably not bright enough.

But if you enjoy a project, don't let me discourage you. The fun is in the doing.

staring at the bulb hurts my eyes and has the shadow effect (black in place of the brightness) :)
 

hobart

Member
Now that you've mentioned it..

My blub blew on my 17" flatty... how much do they cost to repair? Where can I go?
 
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