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Anyone tried 3D LCD display yet? — Parallax Forums

Anyone tried 3D LCD display yet?

JohnGayJohnGay Posts: 57
edited 2012-03-21 09:02 in Propeller 1
Figured I'd ask here first. Has anyone tried sourcing a 3D LCD display for use? I did a quick search, but I'm not that good at narrowing searches down.
I would think they work as two displays that you send Left/Right images to, but I could be wrong. I often am.

Comments

  • RaymanRayman Posts: 15,009
    edited 2012-03-16 05:23
    I'd love to get my hands on some of them... I have a Fuji 3D camera with one and the EVO 3D phone has one... So does the Nintendo 3DS...

    But, I haven't seen the lcd for sale anywhere... I'm sure it will be soon though... Probably replacement screens for the Nintendo have to be available soon, right?

    My understanding of the way it works is that it is just a regular LCD (but high resolution) with a parallax barrier on top. That way, each eye only sees half the pixels...

    BTW: I think I could to 3D right now with my regular 4.3" touchscreens, but you'd need active 3D glasses...

    BTW2: Could also do red/blue 3D with 4.3" touchscreen or DVI output board, but that's even less nice...
  • JohnGayJohnGay Posts: 57
    edited 2012-03-16 06:25
    I know how they work physically, I was wondering about the interface. I would think it would be better/easier to wire them as two displays that can be driven with Left/Right images rather than just a single, double-wide display and then have to interleave the images in software first.
  • average joeaverage joe Posts: 795
    edited 2012-03-16 06:30
    Everyone that I talk to HATES the 3-d effect on the 3ds and always turns it off.. but those are my friends. Maybe if you're not playing games they could be cool? I'm not a fan of 3-d, but apparently it's big right now.. What do you REALLY think about 3d effects Rayman? Sounds like you're a fan.
    Now don't get me wrong, I'm not saying I wouldn't jump on the chance to play with one. That's just not @TopOfstack.
  • JohnGayJohnGay Posts: 57
    edited 2012-03-16 08:21
    http://en.wikipedia.org/wiki/Dolby_3D
    What about this? Just need to steal the right glasses. (-=
  • RaymanRayman Posts: 15,009
    edited 2012-03-16 08:24
    Well, I love my 3D camera. Especially, the 3D HD videos it can record... The photos and videos are incredibly immersive on a 3D TV, compared to plain 2D.

    But, if we're talking embedded control systems, it's maybe less clear how beneficial 3D would be...
    Still, sometimes you need a wow factor to differentiate your product, so it might be good for that...
  • CircuitsoftCircuitsoft Posts: 1,166
    edited 2012-03-16 11:08
    3D seems to vary a lot from person to person. If the viewpoint of the 3D camera isn't proper for the distance between your eyes, it'll give you a headache.
  • TubularTubular Posts: 4,726
    edited 2012-03-16 15:20
    Sharp make a 3D display. I remember it because they talk about "Parallax" effect a lot. http://sharp-world.com/products/device/about/lcd/3d/index.html
    I     did come across a datasheet but cannot find it now.

    I have access to a couple of big Alioscopy monitors if anyone wants to write some test code. They need a high resolution to drive them, but I think it would be possible to create a test pattern "on the fly" that might work with them.
  • average joeaverage joe Posts: 795
    edited 2012-03-16 23:08
    Circuitsoft wrote: »
    3D seems to vary a lot from person to person. If the viewpoint of the 3D camera isn't proper for the distance between your eyes, it'll give you a headache.
    Hmm, I might need to look into this. I seem to lack the "wow" effect, although I do see the 3d. It doesn't quite give me a headache, but it is a bit uncomfortable. The best way for me to describe it is like it's out of focus, so this might make sense. This is my experience from 3d movies, which I've seen quite a few since my wife works @ a theater. I have not had much time with the 3ds, only about 20 minutes. I was not too impressed. I still have not watched a movie on my best friend's 3d tv. We're always too busy playing Left4Dead2.
    Still I'm interested by 3d, and if there is something that would "fix" my perception then that's worth a try.
  • skrubolskrubol Posts: 1
    edited 2012-03-21 09:02
    I've got one of the Fuji's and an Evo3d. The I believe the Fuji uses a lenticular lens (wavy surface similar to an old rear projection TV, or those little toys from a cracker jax box that showed a different image at different angles,) and the Evo uses parallax barriers.
    The advantage of lenticular lenses is that they preserve almost all the light from the display, and have a better fill factor (don't have a black line between every row of pixels.)
    The advantage of parallax barriers is that they're simpler, or when using more complex designs can be turned on and off. The Evo can actually be used both in portrait and landscape for 3d, because there are switchable parallax barriers both horizontally and vertically.
    Both technologies lose half the horizontal resolution.

    A parallax barrier can be DIY'd pretty easily if you can measure the column spacing of your LCD and have a high-resolution printer. All you need to do is print lines on transparancy sheet, with each line the width of a column of pixels and lines spaced by the width of a column of pixels.

    Both types of displays just use pretty much traditional LCD's that have parallel color pixels (rather than offset like in some lower resolution displays) underneath. The way either type of display is addressed is odd column is left eye, even column is right eye (or vice versa.)
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