| Author | Message | ||
     martin Rating: N/A |
Who know which 3d LCD is the best? | ||
| Marvio Rating: N/A |
To my knowledge there's only one! Unless I mistake your question? | ||
| Anonymous Rating: |
To my knowledge there are three companies who currently sell autostereoscopic displays. Lots of others have them in development labs, but you can't buy them yet. Dimension Technologies (US) (www.dti3d.com): makes 15" and 18" 3D LCD monitors that double as 2D monitors. They act like any other monitor in 2D mode, with standard XGA and SXGA resolutions respectively. When you switch to 3D a special backlight comes on that causes each eye to see every other pixel on the LCD. The two images of a standard stereo pair are displayed on the two sets of pixels. The 3D images therefore have half the resolution in the horizontal direction. You also have to position yourself in certain areas in order to see 3D. On the plus side, with the right drivers any software that works with 3D glasses works with their monitors. They also have versions with dual video camera inputs. Advantages: 2D and 3D operation, compatible with most "glasses" software, video camera hookups optional. Disadvantages: Have to be within a few inches of centered on the screen to see 3D, or at a few places off to the side. Stereographics (US) (www.stereographics.com): Makes the Synthagram 18" and 22" monitors. These are "3D only" monitors using a lentiuclar lens screen. The pixels on the display are divided between nine perspective views; as you move around in front of the monitor, the image changes perspective like on a lenticular lens postcard, and you have a wider viewing area. The downside is that each of the nine images has 1/9th the resolution of the LCD screen. The images are only 426 X 341 (the lens is designed so that the resolution is dropped by three in each direction). Drivers are available for 3D Studio max and maybe a few other high end packages. Video hookups are not available, but you'd need nine cameras anyway. The main applications for these displays seem to be in store and mall advertising, as the resolution is too low for most desktop systems. Advantages: Wide-ish viewing area and look around effect, brighter than the others. Disadvantages: Low resolution, 3D only, software compatibility, no direct video. 4DVision (Germany) (www.4d-vision.de): Makes a 15" LCD and 50" Plasma display. These use essentially the same technique as the Stereographics displays, but use a parallax barrier mask instead of a lentiuclar lens. Again, they are 3D only, create nine perspective views, and cut down the resolution to the 400something X 300something range. Again, they are being promoted for in store and mall adverstising applications. No direct video input is available, but they are going to introduce a neat turntable system that lets you rotate an object as you record different perspectives for playback through their software. Advantages: Wide-ish viewing area and look around effect, very large (50") version available, some camera capture capability. Disadvantages: Low resolution, 3D only, lack of software compatibility, somewhat dim. There also used to be a lenticular lens based two view desktop monitor made by Dresden3D, but the last I heard they were going out of business and trying to get rescued by an angel investor. Philips, Sharp and Sanyo also used to sell developer's kits with two-view autostereo displays, but I don't think they are available anymore. Something called Visualabs in Canada once claimed to have a no glasses 3D projection TV, but that turned out to be a hoax. Numerous big Japanese companies have or had things going on in their labs, but allegedly decided that the 3D market isn't big enough for them yet. Which is the best? I'd say it depends on your application. Like everything else there are tradeoffs. | ||
| Marvio Rating: N/A |
Anonymous, Thanks for the lesson man!  | ||
| Kenny Rating: N/A |
i-Art will announce the 3D LCD Monitor on Sep. | ||
| Anonymous Rating: N/A |
u guys are freakin nerds!!!! get A freakin life!!! | ||
| Anonymous Rating: N/A |
arnheim is really gay!!!! i seriously cannot beleive u guys can be so pathetic!!! everyone knows these sites are amde so randoms can chime in and payout nerds!! y do u wanna be the one thats being paydout??? NERDS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | ||
| andreaC Rating: N/A |
Hi there is another 3d company seereal technologies www.seereal.com they produce 3D monitors similiar to dti one, the garantee hi resolution realtime head tracking for wide angle viewing and ful compatibily with standard directx and opengl stereo application. | ||
| BOPrey Rating: N/A |
That's nice. Except how much are those seereal monitors, and where can I buy it in the US? | ||
| StereoGamer Rating: N/A |
Saw the Seereal monitors at SID 2004 conference. They looked pretty good. They have a head tracking(via dual cameras) 2 view display for 15K euros and a non-head tracking 2 view display for 3K euros. Don't know where you can get them in the U.S. I was pleasantly surprised by the non-head tracking unit. Stereo effect was good, sweet spot was average, but easy to get into and the out of monitor convergence was the best I have seen for these class of displays. Image could be brought way out and didn't break up at all! Like to evaluate further but it looked good from the short time I had to evaluate it. - StereoGamer | ||
| BOPrey Rating: N/A |
StereoGramer, What size was the non-head tracking unit? It is a LCD with a custom lenticular sheet. How could they ask for 3k euros for that? | ||
| StereoGamer Rating: N/A |
It is pretty hi res, I think 1600x1200. Don't know exactly but it must be some type of lense over the top. It wasn't switchable. It was a nice looking display. As for price, well, you don't have to buy it. - StereoGamer | ||
| StereoGamer Rating: N/A |
Sorry, I think it was a 20" display. - StereoGamer | ||
| Anonymous Rating: N/A |
There is also: http://www.ec21.com/co/p/pavonine/index.html | ||
| StereoGamer Rating: N/A |
Yes, I also saw this Pavonine display but it was not near as good as the SeeReal one. - StereoGamer | ||
| Anonymous Rating: N/A |
The SeeReal displays are not anything like the DTI since seereal redirects the light for right and left eye instead of blocking it with an LCD barrier. That gives you high res, full brightness and wide sweet spot. Can be bought from www.ampronix.com | ||
| Lars Ahnland Rating: N/A |
I wonder if these screens work with a fresnel lense... | ||
| M.H. Rating: N/A |
There are big differences betwen autostereoskopic monitos according for ho wmuch view/users are they targeted. Examples: SeeReal produce only 2 views = it is suitable only for 1 user in fixed position, resolution is reduced to 1/2. For 1600x1200 the resolution is 800x1200 ... Stereographics Syntha Gram produce 9 views = suitable for multiple users in any position. Resolution reduced to close to 1/9 of original resolution (e.g. for 1600x1200 per eye resolution is close to 530x400) You can not simply comare 2 models, it is necccesary to know for how many users/viewing angles are they targeted. | ||
| BOPrey Rating: N/A |
Lars, I don't think they will work with any magnification devices. | ||
| Anonymoose Rating: N/A |
True. A Fresnel lens placed between the viewer and the display will magnify the display but de-magnify the sweet spot. NASA had a collimated DTI display once with a big Fresnel lens in front, but it was custom built and would not work *without* the Fresnel lens. | ||
| BOPrey Rating: N/A |
> not work *without* the Fresnel lens LOL. BTW, why did NASA went with DTI. Even the one without eye tracking from SeeReal is better than DTI's. | ||
| Anonymous Rating: N/A |
....BOPrey DTI's technology has been used on the Space Shuttle and other programs which can't be mentioned, with and without headtracking, collimated and not collimated. The project referenced above was many years ago, LONG before SeeReal ever existed. 3DexPert | ||
| BOPrey Rating: N/A |
Yes. I got you. Think of it again. An eye/head tracking version from DTI is definitely more reliable than the same one from SeeReal. | ||
| Andy Rating: N/A |
I have seen Pavonine monitors (www.ec21.com) and there was two kinds of them. One with LCD barrier  , and the other, where polarising glasses were required. The last one type has high resolution, high brightness, very wide observ. angle (excellent for multiple users) and nice picture quality. he switch 2D/3D included, so it can be used as normal 2D LCD monitor. I was impressed with this product. | ||
| Anonymous Rating: N/A |
Where did you see a tracked DTI display? As far as I know they only have a fixed sweetspot which is both hard to find and small. A display is of no use if you can't use it for longer periods of time. And with a sweetspot approx. 1/10th of an inch I wouldn't want to use it for more than a couple of minutes. My back and neck would kill me. It is cool that they can be switched from 3D to 2D though! |
