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A Real 3D Monitor

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firewolfsm

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LG produced 42 inch screens with a thickness of 2.6mm, in a few more generations, we should halve that 3 or 4 times, 1.3, .7, .35mm. This approaches the width of a pixel. Now that transparent LCDs are becoming more common, I think combining these two technologies can offer something new, albeit, very expensive for at least 8 years.

If we stack, say, 1080 transparent, sub-millimeter thick monitors with a non-reflective adhesive coating between them, and keep the circuitry connecting them all at the back (or better, on the bottom,) I think we could make the first truly 3D monitors. Each monitor would represent one pixel in the third dimension, and stacking layers of an image would essentially give the illusion of an actual object existing in a glass cube. 1920x1080x1080.

Each monitor could receive its own independent signal from the computer, they would need all power and data delivery constricted to one panel, touching the monitors at their edge. I'm not sure if this is possible with how our monitors are designed.

I was considering methods of adding capacitive touch to the system. Obviously, the first and last monitors could simply be touch screens (though only one is necessary.) A touch screen put on top of the other faces would be perpendicular to the edges of the 1080 screens under it, probably causing some issues with light diffraction and reflection.

I see heat production as a potential problem, even with future amoled screens, stacking this many could cause problems.
Is this feasible? What kinds of engineering challenges do you foresee?
 
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It doesn't actually convey information in the third dimension. A screen like this could actually show projections like that, of the fourth dimension.
 
You do realize that glass is not all that transparent, right? a 1m thick glass doesn't let much light through. Not to mention reflections, refractions and all the rest of the stuff because of imperfections.

Then we have the LCD glass... Just because it lets 95% of light through and it seems transparent because of that, try applying power of 10 to 0.95...
 
The best system I've seen is one that has something like 50 LCD displays integrated into a panel, such that a different display is visible depending upon the angle at which you are looking at it.

If you look dead square at it, you see image 25. If you are 1 degree to the left, you see image 24, or 1degree to the right, image 26. This way, your 2 eyes see different images. As you move your head from left to right, the view appears to follow you.

Unlike, other systems which use head tracking this means multiple people can experience the full 3D effect simultaneously, each seeing their own POV.

Only problem with the system I saw was that it only had horizontal parallax. No vertical.

Oh. And the price. I didn't ask about that. But the rep said that no institution, no matter how flush with money, buys more than 1. 🙁
 
A holographic display (that is one that creates and manipulates an interference pattern in real time) will likely occur far sooner than it becomes practical to have a "cube" display. Beyond being far more space efficient and cheaper to make, they avoid certain engineering issues that would arise making something like that.

There is a lot of work being done, and huge advances made in creating materials where a hologram can be updated in real time.

http://www.bbc.co.uk/news/science-environment-11685582 from 2008 shows some early work on it.

This is the same sort of technology from last year:
http://news.bbc.co.uk/2/hi/programmes/click_online/9393762.stm

This is the future of true 3D. It will be a while though, likely a long while, before you can buy a useful one.
 
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there's still the problem of recording...i'm not sure even a normal dual camera setup would work for this, since it essentially relies on the 'trick' of combining two slightly different perspectives.

imo 'real' 3D without glasses just isn't possible. as the least, you would need head tracking to maintain a proper perspective, no? and that requires RENDERED 3D, not just something shot with two cameras.
 
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