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3D LCD Display
Powerdog writes "After 10 years of lab work, Sharp has developed a 3D LCD display that works without glasses. They expect to use the displays in games at first, and expand into PCs and TVs. Production begins in a few months and products using them should be shipping in early 2003. Naturally, I just bought two 2D LCD displays for my home office two weeks ago."
Double D's are more than enough on my LCD screen, thank you.
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the article doesn't really have any technical details, I'm curious to see what principle this screen operates on, and what makes it different technologically from the previous 3d LCD screens we've already seen (I think it's the 2d/3d nature of the screen without loss of resolution, as the article says, but I'd like to know how they get this to work)
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http://www.dti3d.com/
d e. 1.shtml
http://www.neurokoptics.com/press/archive/giga.
When you actually *make* something, it's not a mystery business plan. You say, wittily:
1. Create 3D LCD that works without glasses.
2. ???
3. Profit!!!
In this case, ??? can be expressed as:
"Sell 3D LCD for more than it cost to manufacture it."
Okay?
The P.R. Gives some indication of how it works:
...what effect a 3D display like this might have in terms of eye strain. If something like this were to become really widespread and used for day to day applications and GUIs, it's something to consider. Anyone out there that has worked with similar displays have an answer?
The article doesn't say how the 3D effect is done, but I would venture a guess: Lenticulars.
;- )
I used to work for a company that did a bit of research in lenticular software, its pretty neat, but a bitch to align properly.
And we all wanted a lenticular screen
(For those who don't know what lenticulars are, they are those plastick "ribbed" images you often got in cracker jacks boxes and on some toys, erroneously called holograms by 99.9% of the population.)
You can't take the sky from me...
Sharp has developed a 3D LCD display that works without glasses
I applaud Sharp's achievements in this exciting area of optical technology, but if the display only works without glasses, this eliminates a good percentage of computer users who, like myself, have to wear glasses.
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Yes, you're right, but you forgot one significant detail: the software solution.
If you have a sufficiently efficient 3d card that has an incredibly low latency, you can emulate the long light traversal time by simply just sending the light from the deep objects *later*. This probably would require the logic to be integrated to the LCD screen itself because the signal latency in the vga cable from the sound card to the monitor in itself is too high. I'm unsure whether Sharp used this in their monitors, it'll be interesting to see when they give out more details.
WRONG.
That would only work if you were able to know when the light being reflected from said objects originated. Given that light, in most cases, is a constant element (it's not frequently changing, i.e. stopping and starting, like a strobe), and given that you are not the originator of the light and you have no way of being sure which received photon (or group thereof) is (are) supposed to be synchronous in origin/reflection with which other photon, your explanation for depth perception/3D vision is not possible. 3-D vision actually relies on a number of processing tricks in the brain. You do the footwork, but the most commonly cited ones are: motion parallax, relative size, occlusion and binocular disparity.
Active sonar works the way you describe, as does radar. Human vision does not. Think of it in terms of active vs. passive processes. An active system is one that originates some signal and meters the response. A passive system makes sense of the existing signals whose origins/timings are not often known. Human vision is a passive system...
i will go with a volumetric display any day of the week.
My life in the land of the rising sun.
If anyone's interested, here's a babelfish'd link to a Japanese page with some pictures of the unit and more information. Looks pretty cool to me.
I'll actually be impressed when I can walk around the image and see different angles.
Mom, I can see up this Britney's skirt!
Henry Taylor Thomas, you get out of the TV projection area right this minute or you won't get to watch anymore MTV!
Robots are everywhere, and they eat old people's medicine for fuel.
I bought a Geforce2 from MSI with an Elsa 3D Revelator bundle. The bundle contained polarised shutter glasses (dongled onto the VGA cable) that sync up to your CRT monitor's refresh rate, opening each eye in turn. The drivers show you a different picture for each eye.
These things rock. Almost all OpenGL or D3D games work with them. It's very useful for platformers where you have to judge distances to jump accurately (like in American McGee's Alice). It's good for heaving grenades accurately (like in Counter-Strike, Grand Theft Auto 3). It's good for flight simulators, where judging distance can be crucial (like in MS Combat Flight Simulator). Driving is great (!) in 3D.
If it doesn't actually improve the way you play certain games, then eye-candy alone makes it worth it.
You can do some weird things with stereoscopic gaming. Using GLDoom (or the like), you can play Doom in stereo. Using an emulator like ePSXe, you can play console games in stereo.
There can be some problems. Some games use 2D elements with their 3D games. GTA3, for example, has 3D cars, people, and architecture; but it uses 2D for most particles. This means that fire, smoke, and some debris appear at screen depth (along with the 2D hud elements).
The only really practical use of this system right now is games (is that really practical?). There are no workable 3D desktops/web browsers/word processors/etc., so the Snow Crash/Johnny Mnemonic metaverse-thingy isn't quite there yet. However, there is existing technology lying around to do it today.
Another thing: These glasses are CHEAP! (
Sharp has developed a 3D LCD display that works without glasses.
I have a 3D LCD display at home that works great with or without glasses.
Now what would really be cool, is a 2D LCD display... I mean, sure they're already pretty thin.....
oh wait.... I'm supposed to read the article first, aren't I?
I'll have something intelligent to add one of these days...
"Naturally, I just bought two 2D LCD displays for my home office two weeks ago."
2 x 2D = 4D
4D > 3D
QED