38-Inch LCD Panels 75
MasterDevelopers.com writes, "How about this for a laptop screen? Rainbow Displays is building the world's largest LCD displays coming in at 38 inches diagonal. It's a cool way that they do it, combining four 19" panels into one large one in a way so that you can't see the seam between the panels at all. Look out plasma displays; LCD may be making it in the big screen format."
god (Score:1)
Re:Nice, but still far from desktop (Score:1)
Firewire is even slower (Score:1)
That's if start and stop bits aren't included in the 1200 Mbit/s, otherwise it's even slower.
Sounds not that interesting.. (Score:1)
Re:Now, all we need... (Score:1)
--synaptik
If you want to flame me, do so here [slashdot.org].
Not a hoax... (Score:1)
Re:Now, all we need... (Score:1)
As far as a SCSI interface - SCSI may be fast for storage, but it gets absolutely torched by even PCI. SCSI to your monitor would be a Bad Idea. The current monitor-to-videocard interfaces will scale quite well.
Re:Cost effectiveness (Score:1)
My guess is that they need one edge at the top-or-bottom and one at the left-or-right to connect the panel. This makes 4 the max.
My guess is that they have something like half a pixel or a whole pixel of empty space between the two screens. The adjacent pixels need to be a bit brighter to compensate. You need to be at a sufficient distance not to notice.
Roger.
Re:Now, all we need... (Score:1)
[...]
I think that we should be concentrating on increasing the bandwidth that we can send to
the monitor. Why not run a fiber-optic cable from your computer to your monitor? Put that
SCSI interface to work providing you with the bandwidth you need, to your monitor, not
your CD-ROM!
I just did the math. You need to pump about 5G per second to your 36 inch 200 ppi screen to get a 70Hz refresh rate. You wanted to use your spare 80Mb per second SCSI controller for that? You need 65 of them to achieve enough bandwidth. Ah, you have your CDROM drive connected to your 160Mbps lvd SCSI chain. Ah. that changes things. You need only 32 of them to drive a display like that.
No, SCSI and video hardware don't really compare in the transfer rates.
Re:Nice, but still far from desktop (Score:1)
Yes, but you are presumably sitting further from the 38" monitor than the 19 inch. My 19" takes up all except my peripheral vision. If you compare this with other ultra-large ( > 21' ) display monitors, you'llfind it's in the same league resolution-wise
Re:Good way to do it! (Score:1)
hey.. cars are cheap in the US
Re:Fold-out Laptop screen? (Score:1)
Re:Good way to do it! (Score:1)
SVGA Only!? (Score:1)
Re:Nice, but still far from desktop (Score:1)
That's 8,640,000 pixels. You'd need 24.72 MB for 24 bit color (plus texture storage if it's a 3D card). This will probably be cheap by the time a screen like they one you describe can be had for under $10K. There are already cards with 64 MB.
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One additional thing (Score:1)
Having read the previous stories about all the troubles people have with very large resolutions due to buttons and control etc. not resizing, the images seem very suspicious to me.
Re:Now, all we need... (Score:1)
Johan
Re:Good way to do it! (Score:1)
You sure? I assumed that the reason why they were able to make it seamless was that if you use a 2x2 grid, each panel still has two hidden edges, giving you somewhere to attach the input signal. If you use a 3x3 scheme, the middle panel has no obscured edge, so it has to be fed "from behind", which I'm assuming is harder to do.
All this based on assumptions.
The other reason these are better then plasma (Score:1)
Spyky
Re:Good way to do it! (Score:1)
Dead technology (Score:1)
costs of LCDs screens currently and speculation (Score:1)
Re:Now, all we need... (Score:1)
> for storage, but it gets absolutely torched by
> even PCI.
To my knowledge, the 32 bit PCI bus (running at 33MHz) has a throughput of around 132MB/sec. The latest Ultra SCSI-3 specification, at 160MB/sec, can't be fully taken advantage of in this case. Of course, 64 bit PCI is a different story, as is AGP1x, where in both cases the bandwidth is doubled by the bus width getting you 264MB/sec. (AGP 2x and 4x each double the bandwidth further by increasing the clock speed.)
Either way, unless you're updating the entire screen at this resolution, you don't need this type of bandwidth on the bus just to display video. You need only pass the information necessary to modify the display, and let the video card's acceleration engine (either 2D or 3D) handle the rest. AGP even gets you the benny of offloading the image data from the PCI bus with sideband addressing, giving the rest of the system room to breathe next to that hungry video card.
Since the video card's engine is doing the actual manipulation of the DAC, that's the part that needs to be this fast. With today's 250MHz and (easily) faster RAMDACs, this isn't quite the problem it might seem at first. Unless you are trying to do full motion video at that resolution (good luck getting that bandwidth!) you'll probably do fine with AGP2x or better. Now, if the VGA connector starts running into problems transferring that amount of data, you could have a real problem on your hands... But until that time, I'd say current high end videocards could handle this class of display.
Re:Now, all we need... (Score:1)
There's no reason that this couldn't work for FMV data though, barring costs and complexity it could be the logical extension of hardware-assisted MPEG cards. Sounds very yummy... It'd have to be programmable/upgradeable though, to keep up with new technologies. Who wants to have to purchase a new 36-inch display because a better video compression algorithm came out?
*Texture compression notwithstanding.
Re:Good way to do it! (Score:1)
Ooh, and that combined with the 3D technology in the article from yesterday...
Would that work? Anybody?
-Ravagin
"Ladies and gentlemen, this is NPR! And that means....it's time for a drum solo!"
Re:Now, all we need... (Score:1)
2048x1530 is the highest your graphics card can handle. Even at that high a resolution, it'll appear blocky on a 38" screen. We currently don't have a practical solution that will do something higher than that. (Yes, there are better cards, but they are prohibitively expensive).
Furthermore, the refresh rate is dependent on more than the graphics card. It also depends on the monitor, among other things.
Re:Good way to do it! (Score:1)
Good point about the entire wall thing, the scalability. But is that really something that will ever become practical?
Anyone out there recall the parlor walls in Fahrenheit 451? We don't want to be like that. I think I'll forgo the full-wall TVs and computers, for the time being, as I'm not a department store.
"I may disagree vehemently with what you say, but I will fight to the death for your right to say it."
Re:How about LSD Panels instead? (Score:1)
May be clearer, however, there is a paralax problem if the user cranks up the gain.
-d "could not resist"
Yeah right.. (Score:1)
Nathaniel P. Wilkerson
NPS Internet Solutions, LLC
www.npsis.com [npsis.com]
Re:Now, all we need... (Score:1)
You should never, never doubt what nobody is sure about.
Re:Good way to do it! (Score:1)
Yes, but judging by the technology profile, they need to match the brightness of the panels. This would push the price up even higher. Still, considering the small demand for 57 inch flat screens I suppose this isn't too much of a problem.
Re:Good way to do it! (Score:1)
Re:Cost effectiveness (Score:1)
I guess I should go and read the article, but did it mention how the singal is distributed to the panels? Are all the panels acting as individual screens, expecting to receive only a potion of the overall video signal (displaying only what it receives) or does it actually receive the same signal as all the others and display only what it is supposed to (based on it's position in the overall display)?
off to read the article...
Re:WOW WHAT A COINCIDENCE (Score:1)
Re:How about LSD Panels instead? (Score:1)
Re:How about LSD Panels instead? (Score:1)
LOL
But it's not seamless. Those little preforations really detract from the Dancing Bears picture :)
Re:Yeah right.. (Score:1)
Simple control system for multiple displays (Score:1)
Re:Nice, but still far from desktop (Score:2)
2x2 display, 36" diag
800x600 fmv resolution
Chopping each dimension in half (to give stats for individual displays) gives us:
4 displays, each 18" diag
400x300 res per display
Ick...imagine running 400x300 on a standard 19" monitor (most are 18" viewable diag)...this is the resolution we're talking about.
When they can link 4 1600x1200 capable screens of the same (18" diag) size together seamlessly, and provide total resolution of 3600x2400 - then we'll talk
(just imagine the video ram you'd need for something like that!)
Warning, Off Topic Post Follows, but related (Score:2)
Sgt Pepper
Lame Sig Shamelessly Ripped from
Fortune:
Grandpa Charnock's Law:
You never really learn to swear until you learn to drive.
[I thought it was when your kids learned to drive. Ed.]
Firewire is your friend. (Score:2)
http://www.pavo.com/ieee1394/faq/1394faq.htm#ho
Presently the fastest implementation is S400, which runs 393.216Mbits/s (megabaud). Future standard extensions may run up to 1200Mbits/s! And like SCSI, these are only effective over very short distances.
Just like USB will soon completely replace serial connections, Firewire will probably eventually replace all parallel, SCSI, and video connections, not to mention its potential for things like home networks combining data, telephone, and video interfaces. It's already becoming a standard for full-motion video interfaces.
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Re:Now, all we need... (Score:2)
It sounds nice, sure, but do we really need it? I mean, most monitors now are supposed to be around 72 DPI and the pixels on them are fine. And while the size of a screen increases, so does the practical viewing distance so you can get away with even larger pixels.
This doesn't mean I don't want one, but we can do it cheaper than that.
Greg
Re:Why 19? (Score:2)
Re:You know slashdot is going downhill... (Score:2)
3D LCD wall a possibility? (Score:2)
According to Philips's Password [philips.com] magazine, they have overcome some of this problem with "simple compensation foils". They also have a Colour 3D-LCD Evaluation Kit [philips.com].
If only they would combine the two.
Re:Nice, but still far from desktop (Score:2)
It is about 4 for me, because I like to keep them all in the same workspace. This naturally means that the more screen I have, the more terminals I have. Mmmmmm, CLI....
The EE Times article was all about small (Score:2)
Given the excess capacity in the small market, and how cheap a 2x2 is, we can get big displays from small.
21 inch displays for under a grand in 3 years was what caught my eye.
Re:Now, all we need... (Score:2)
The problem with really big displays is that the computer can't send enough signals to the screen to get a decent refresh at a high resolution. It'd probably be possible to get 2048x1530 or something ludicrously high like that, but you'd have to accept visible rescanning rates. In other words, completely useless for typical applications.
Since LCD displays are digital, it shouldn't be hard for the display to include memory and buffer the image on the screen. It might do that anyway.
Nice, but still far from desktop (Score:2)
In the web page, though, it was stated that the diplay supports full motion video @800x600 which makes it quite useless for the desktop (at least for now). After all, of you had a 36'' monitor, it would be a shame to use it at a resolution smaller than 2000. And I guess that LCD doesn't go that far for the moment.
Then again, the first purpose would be large panels for public sites and I think what they provide is enough.
And as a mean question : on the site says that the announcement was made on Nov 9 1999. Don't you think this is a bit old even for a boring Sunday ?
Seamless? (Score:2)
I don't see driving the thing as a serious problem. Worst case, you drive it using a multiple-monitor setup, with multiple graphics cards. And for many applications, you don't need fast update anyway. Flicker isn't an issue; this is an LCD, not a CRT.
Re:One additional thing (Score:2)
You know slashdot is going downhill... (Score:3)
Where can we see it at? (Score:3)
If it was really that seamless then why aren't there any pictures on the website. The graphic that depicts the four displays becoming one seamless display doesn't convince me.
Ok, so there are a few screenshots at http://www.rainbowdisplays.com/news/ images.htm [rainbowdisplays.com], but they really should have some closeups so you can see how seamless it really is. Such a small image of such a large real estate doesn't convey much.
Re:Good way to do it! (Score:3)
A few years ago, almost all LCD screens were like this. Unless you were almost directly in front of the screen, you couldn't see anything (or the colors were inverted). But advances have been made in LCD technology and most of today's LCDs look great from almost any angle.
Good way to do it! (Score:3)
The best part is that it scales beyond 2x2; you could do an entire wall that way (assuming you have the budget for it). The problem then is that it's even beyond HDTV resolution or 35 mm, so you would have trouble finding what to show on it.
Re:Now, all we need... (Score:3)
But the SCSI bandwith is nowhere near enough to drive a monitor. Case in point:
A monitor running at 1600x1200x24bpp requires about five and a half megs of video memory to display. The fastest SCSI specification has 160MB/s bandwith. Since display needs to be sent to the monitor in full every time the monitor refreshes, we divide the two to get the refresh rate. So, in the best case, we get a refresh rate of 29Hz.
By the way, even AGP 1X has something like 532MB/s bandwith. There is certainly a reason why we have video cards instead of SCSI monitors.
More interesting to me is the software constraints of running at super-high resolutions (36inch 200ppi). Very few operating systems offer the ability scale icons or font size on your desktop. This obviously needs to be changed before any super high-res displays can be adopted. The hardware will surely catch up in time to support these displays, it always does.
How about LSD Panels instead? (Score:3)
LSD is paper thin, and projects beautiful imagery of a fantasy world across your whole field of vision. Forget about thick "panels", kludgey technology like this 38" screen, or cumbersome technology like heavy headsets -- all you need is LSD, and I think it might be cheaper.
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Re:Cost effectiveness (Score:3)
The question that needs to be answered to determine if costs go up or down is the accuracy of the joining process. If it is very accurate, can be done by machine, and has a low failure rate, the costs could well go down significantly, as each rejection would be of a smaller part, meaning less work and fewer materials wasted. If it is a painstaking process, the materials question remains about the same, but the work costs can go up, meaning no reduction or possibly an increase in size.
One interesting possibility with this technology is a sort of "Lego" function, where you could snap in more and more of them (this would require some very tight manufacturing tolerances) to create larger screens on your own. This would allow not only individual consumers to build to the size they need (gamers go for larger traditional screens, graphic artists and webmasters go for wider screens, etc.), but companies could create screens that fit into their decor. Another upside with this is that if you have a panel that starts to have an unnacceptably high number of bad pixels, you swap it out for a new one.
:: sigh
Fold-out Laptop screen? (Score:4)
If so, IBM should take the idea of their Thinkpad folding keyboard and apply it to displays. I'd like to see a laptop screen that folds out to > 17" inches.
The only other way I can see to make laptop screens bigger is to increase the length and width past the "notebook" size, which makes the laptop less portable.
Cost effectiveness (Score:4)
They have a display made from four displays 1/4 the size, but would it be more or less expensive to combine 9 1/9 size or 16 1/16 size displays? I'm thinking that if the joining process is cheap enough, you could have displays made up of 1" squares, thus reducing the cost of each display (fewer pixels to go wrong), and the entire display, to a point, that point being where the cost of joining (and calibrating) the little displays meets the savings of having smaller units.
How it's done (Score:4)
_________________________
Now, all we need... (Score:4)
The problem with really big displays is that the computer can't send enough signals to the screen to get a decent refresh at a high resolution. It'd probably be possible to get 2048x1530 or something ludicrously high like that, but you'd have to accept visible rescanning rates. In other words, completely useless for typical applications.
I think that we should be concentrating on increasing the bandwidth that we can send to the monitor. Why not run a fiber-optic cable from your computer to your monitor? Put that SCSI interface to work providing you with the bandwidth you need, to your monitor, not your CD-ROM!
Besides that, we could use a different system for screens...field-emission might work. Something that could get the information from your cable to the screen faster. IIRC, field-emission can be based on Carbon-60, a superconductor. That'd probably translate into at least a small increase in speed.
But there's one more problem. If you have a 36" 200 PPI screen, it doesn't matter if it can handle super high resolution. You need the hardware to handle it. Depending on what you're doing, it might take huge amounts of processing power to display pictures on that screen. Of course, some things (like DVD movies, which don't need processing to display) would be easy to display and would therefore look great and be big (although other's have pointed out that this resolution is even higher than HDTV, maybe burn your movie onto FMD..?).
But who can say what tomorrow will bring? (ha, that look like a signature, but it isn't!) I've no idea what MIT will announce tomorrow, maybe someone in a secret collaboration between Sony, IBM, and DaimlerChrysler that will produce 12' 200 PPI screens that automatically drive around on a truck chassis next to you so you can always check slashdot.
But I doubt it.