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Cheap 3D LCD
Turn up the brightness and wiggle your head from side to side. | |
Make a sheet of transparent plastic so that it is flat on one side but moulded into facets on the other.
Design the facets so that they act as a lens array, or set of light pipes, making certain pixels only visible from certain directions.
Group those pixels into blocks so that the upper right
of the block is visible from the lower left of the screen and so on.
Attach the plastic to a conventional LCD display so that the pixels line up with the light pipes in the sheet of plastic.
Write a video driver so that generates the appropriate amount of perspective views and send pixels of each view to the appropriate pixels of the LCD display.
Turn up the brightness and wiggle your head from side to side.
Say, "Ooh! Ahh," in the manner of someone watching a firework display.
Think, "I can't believe nobody has done this before."
Google madly.
__________
Say you have a 1024x768 pixel screen and want 8 horizontal views and 4 vertical. You would have a total of 32 views of 128x192 (non-square) pixels. Each groups of 8x4 pixels would show one pixel of the 3D image.
Sharp's 3D LCD
http://web.archive....te/news/020927.html
[krelnik, Oct 05 2004, last modified Feb 17 2005]
3D display developed by NYU
http://www.mrl.nyu....rojects/autostereo/
Works really well (got a demo of it the other day) [ilyar, Oct 05 2004, last modified Oct 17 2004]
3-D TV That Actually Works
http://www.wired.co.../news/2006/08/71627
Philips' WOWvx technology places tiny lenses over each of the millions of red, green and blue sub pixels that make up an LCD or plasma screen. The lenses cause each sub pixel to project light at one of nine angles fanning out in front of the display. [xaviergisz, Aug 21 2007]
QP Made Easy
http://www.rambles....chton_timeline.html
[Giblet, Aug 23 2007]
Annotation:
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At some level this strikes me as similar to Sharp's new 3D LCD panel technology. They don't do the 8x4 views, just one for your left eye and one for your right for fixed viewing. But its the same concept of taking pixels and directing the light so they can only be seen from certain angles. Soon to be in a laptop near you. See link. |
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Thanks for the link, krelnik -- it sounds like similar technology. I'd have been surprised if nothing came up. |
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I've seen the Sharp display in person and, well, it's okay. You have to be in the sweet spot both side-to-side and distance-wise before it really locks on. Even so I think it too blurry for my tastes. |
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One thing that was interesting is that they had this display that showed you how the technology worked (a physical version of the diagram in [krelnik]'s linked article) with glasses that you could look through to see two images derived from one common source. That was helpful in understanding how they pulled it off. |
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Philips have done the same thing - looked pretty crappy. |
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just have two very tiny LCD screens, that fit into a "Viewmaster©"...instant 3D. I still have my Viewmaster© from when I was 12 years old....loved it...still do. |
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Strangely enough it reminds me of Michael Crichton's explanation of seeing multiple dimensions and quantum physics in timeline. |
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