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Transparent Screens on the Horizon?

mhesseltine writes "According to United Press, researchers in Japan are developing transparent transistors. This could bring about see-through screens like those in Minority Report. Also, I imagine would be better heads-up displays (HUDs) for vehicles, layered flat panel displays, and new methods of interfacing with information screens."

54 of 223 comments (clear)

  1. Imagine the possibilities... by craenor · · Score: 4, Funny

    I can surf pr0n while driving!

    Cause just talking on my cellphone, drinking coffee and eating a donut weren't distracting enough...

    1. Re:Imagine the possibilities... by DarkBlackFox · · Score: 4, Funny

      Porn while driving eh? You sure the guy in front of you won't catch a glimpse in his rear view mirror and cause a hazardous traffic condition ;)

      Could lead to a big mess on multiple fronts.

    2. Re:Imagine the possibilities... by stratjakt · · Score: 5, Insightful

      Actually, HUDs are about the most practical use I can think for these things.

      Not surfing pron, but having your speedometer, tach, oil pressure blah blah in front of you so you dont have to look away from the road to make sure you didnt speed past that cop.

      --
      I don't need no instructions to know how to rock!!!!
    3. Re:Imagine the possibilities... by infinite9 · · Score: 2, Funny

      I can surf pr0n while driving!

      Better still, you could put one on each window and augment reality to keep the drive more interesting. For example, the other day, I found a link to a bicycle with a mechanical dildo protruding through the seat. (See $$$$$exyGal's journel here on slashdot) Imagine a few of those girls stopped at red lights next to you!

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    4. Re:Imagine the possibilities... by cruppel · · Score: 2, Funny
      Could lead to a big mess on multiple fronts

      I don't know whether you mean the porn or the traffic...

    5. Re:Imagine the possibilities... by vsprintf · · Score: 4, Interesting

      If your peripheral vision is so bad that you have to look down to see your speedometer, you shouldn't really be driving anyway.

      Hmm. If you can focus a mile ahead in full sunlight, and still read a shaded speedometer with two scales (MPH and KPH) and all the other gauges, YOU 'DA MAN!! Keep eating those carrots, 'cause they're evidently working.

    6. Re:Imagine the possibilities... by homer_ca · · Score: 2, Insightful

      This may not be that useful for a HUD display. Although the display is inside the vehicle, it's projected so the focus distance is many feet in front of the windshield. Otherwise you'd see a double image of the HUD when your eyes are focused down the road.

    7. Re:Imagine the possibilities... by zero_offset · · Score: 2, Informative
      but having your speedometer, tach, oil pressure blah blah in front of you so you dont have to look away from the road

      Pontiac has put limited HUDs in certain model cars for many years. It was first introduced in the Bonneville SSEi models, in the early 90's as I recall. I had one a few years back in a Grand Prix GTP. They only show speed and turn signals but they're fantastic. I drove the Grand Prix frequently for about a year and it's actually difficult to get used to looking down at a speedometer again.

      They use a simple reverse-image LED inside the dashboard which reflects off a mirror aimed up at the windshield. The output appears to be hovering at the lower edge of your vision about a foot or two in front of the car. You can control brightness and you can raise or lower the image (a switch tilts the mirror in the dash). Admittedly, I did always wish it showed more information (particularly RPM). However, that would probably be too much distraction for your average driver.

      Sadly, I gather GM owns several patents on this, so nobody else can offer it. I'd pay stupid amounts of money to have it on every car I own, though. It's that useful.

      HUDs aside, though, see-through screens would be awful for exactly the same reason nobody really uses see-through windows on their desktop except for a short-term "gee whiz" effect. If see-through surfaces were so great, we'd all be using transparencies for output (B5-style) instead of PWP -- Plain White Paper. :)

      Damn, now you've got me jonesin' for a HUD again. Maybe I'll build one into my race car... heh heh...

      --

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  2. I can see right through that story by dmachine · · Score: 3, Funny

    Another useful application would be the cool reverse camera shot of zion bay door operators =D

    --
    You've got a lot to learn before you can beat me. Try again, kiddo! (ha ha ha!)
    1. Re:I can see right through that story by Cyno01 · · Score: 5, Funny

      Heh, first thing that came to mind in that scene was, "Hey, Zion runs on Macs".

      --
      "Sic Semper Tyrannosaurus Rex."
  3. Transparent screens... by milkmandan9 · · Score: 5, Funny

    ...on the horizon? I'll definitely need to invest in some binoculars.

    I've got enough trouble seeing the opaque monitor on my desk.

  4. Damned CRTs by Anonymous Coward · · Score: 5, Funny

    Finally I will be able to get rid of that CRT taped to my windshield.

  5. Eh? by Anonymous Coward · · Score: 3, Informative

    Transparent screens are nothing new. Liquid crystal displays are transparent. As for glowing transparent screens-- well that's something entirely different.

  6. HUD displays by gtrotsky · · Score: 5, Informative

    I actually think it'd be hard to see a full colour image behind a HUD type display. The colours in the background would blend with the colours in the HUD display. That's why HUDs always use monocrome green.

  7. Augmented Reality by jeroen94704 · · Score: 3, Interesting

    Transparent displays would also be a significant advance for the field of Augmented Reality.

    --
    He who laughs last, thinks slowest.
  8. Transparent displays are already here by Eight+01 · · Score: 2, Interesting

    I went to the newly renovated Ocean World exhibit at the Museum of Natural History a few nights ago. Their information kiosks feature a two-layered display. It is quite striking.

    The top layer shows information about the selected creature, while the bottom layer shows the "tree of life". Elements on both layers are selectable via touchscreen. The bottom screen is visible through the top screen - both through a window and more faintly through the content of the top screen.

  9. I don't know about you by CptChipJew · · Score: 5, Funny

    But I can see right through this little transparent scheme.

    --
    Vonal Declosion
  10. Do all of you need glasses? by teamhasnoi · · Score: 5, Funny
    Can't you see through this story? Clearly, it's an advertisement.

    I would hope the editors would try and be a little less transparent.

    I swear, sometimes I feel invisible around here.

  11. Blue screen -- death by Anonymous Coward · · Score: 5, Funny

    So a blue screen of death while driving would block your vision while you careen into a wall, and really die. Cool!

  12. Transparent screens... by jd · · Score: 4, Funny

    But how would you set the alpha channel?

    --
    It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
  13. Stacks by JohnFluxx · · Score: 3, Interesting

    You could have several behind each other - build up a 3D display ;)

    I don't know how close you could get one behind another, but even if there is say 1cm gap between each layer, you could still have cool effects.

  14. transparent screens??? by bilbobuggins · · Score: 4, Funny

    how in the hell am i supposed to pick my nose at work?

    1. Re:transparent screens??? by fputs(shit,+slashdot · · Score: 5, Funny

      Try your finger. Hey it works for me.

      --
      I am the bastard of base minus 12! Turing was the ejaculate of my complete machine!
  15. Depth? by Figster · · Score: 2, Insightful

    Wonder if you could layer these screens to provide depth of vision as well...

    There would be some interesting applications for a screen that could allow information to be displayed in three dimensions.

    1. Re:Depth? by geekoid · · Score: 2, Funny

      get a second one, fave it away from you, and display yourself working.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  16. Transparent screens already availible by adzoox · · Score: 4, Interesting
    To me a better type of transparent screen, more like the one used in Minority Report already exists (by conventional means)

    By embedding reflective but transprent phosphors and other chemicals/compounds into plexiglass or glass one can project images onto that glass with a normal projector.

    I did this as an experiment just after Minority Report using a tiny xb31 HP projector and plexiglass. Gives a really neat effect - just need low light / dark room (also as in Minority report)

    Although the layered screens i suppose couldn't be done this way.

    --
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    1. Re:Transparent screens already availible by hype7 · · Score: 4, Interesting
      To me a better type of transparent screen, more like the one used in Minority Report already exists (by conventional means)


      I love this "relate /. tech to movie" kind of thing. Whilst the movie itself sucked, Red Planet was full of cool future stuff; including some cool future uses for "transparent screens"; they folded one out and as it progressed across the body it overlaid bodily injuries. Another use was as a map; the screen overlaid directions and bearings, whilst still letting you see the terrain behind it. Very cool.

      Nothing beats the mechanical dog out of that movie, though. That's what an AIBO should be like! :)

      -- james
  17. Videoconferencing by justfred · · Score: 5, Interesting
    One application that could use this technology is videoconferencing - put the camera behind the monitor.

    This is already possible with one-way mirrors reflecting the screen, but one-way transparent screens would make it easier.

    Instead of having the camera at the top of the screen and looking back and forth, put it directly behind the middle of the screen, about 2/3 of the way up. Or have smart software that would track where the other person's eyes are and put the camera between their eyes so you could look directly at them.

    I believe that this is a big factor in why videoconferencing always "feels strange" and perhaps part of why it hasn't caught on.

    1. Re:Videoconferencing by GlassHeart · · Score: 4, Insightful
      I believe that this is a big factor in why videoconferencing always "feels strange" and perhaps part of why it hasn't caught on.

      I doubt it.

      In the good days, managers don't like videoconferencing because they don't earn airline miles that way. A lot of people like to travel on company expense, and pick up free tickets or upgrades for themselves along the way. Videoconferencing also tend to be troublesome to set up, so less technical people would probably rather use the phone if they can't just fly there.

      For technical types, it's nearly impossible to conduct a meeting with the jerky motion and poor resolution. I frequently need to draw complex diagrams (which is why you needed a meeting in the first place, not just an email), and videoconferencing systems today fail miserably here.

      Why hasn't it caught on? The question is what you're trying to replace. Most business or technical problems can be solved over the phone, instant messaging, and email. The ones that can't be solved that way can't be solved using videoconferencing either.

  18. Re:Can't Wait!!! by (54)T-Dub · · Score: 2, Interesting

    Well the military uses are profound. HUD's (Heads Up Display) are still fairly primitive and this will allow for very advanced ones.

    For personal use, having your windshield as a display hooked up to infrared camera's would increase nightime driving safety. (i think cadillac already has a primitive system)

    Also, the article state's that the technology can make LCD's a lot brighter.

    This would also allow a user to have multiple screens overlapping one another, kind of like transparencies but much more powerfull.

    --

    "I can not bring myself to believe that if knowledge presents danger, the solution is ignorance" - Isaac Asimov
  19. Okay...just off the top of my head by CommieLib · · Score: 2, Insightful

    Extremely convince illusions created by layering multiple levels of transparent screens. True 3D, though only so much parallax can be created.

    --
    If your bitterest enemies are people who hack the heads off civilians, then I would say you're doing something right.
  20. Not only that, but... by The+Jonas · · Score: 2, Interesting

    ...I imagine that these will not be low $$$ items. Therefore, if the internals are transparent how will any repairs be made to prevent against handing out a lot of money to replace a broken/malfunctioing one.

  21. For daily use by LlamaDragon · · Score: 5, Insightful

    Am I the only one who would put something solid behind the transparent screen so I wasn't distracted by the stuff behind it? People walking around back there, maybe the dog running through my documents...it'd tick me off pretty quick.

    That may just be me though...

  22. Re:Why are the no stars? by mcpkaaos · · Score: 2, Funny

    That is a pretty amazing observation. Your attention to detail has no equal. However, next time I suggest you post your findings to the correct discussion. :)

    --
    mcp.kaaos

    --
    It goes from God, to Jerry, to me.
  23. Want to see a good example? by djupedal · · Score: 2, Informative

    Check out the sci-fi flik 'Mission To Mars'. There are at least two examples in M2M where see-through screens are in use...one is in the mars orbiter, where a screen about a meter wide extends down from the ceiling, and the other are the hand-held screens in use on the surface of Mars, where they are not only transparent, but they roll up when not in use. The actors make interesting use of the see-through screens in both cases. Shame the trailers don't show either screen.

  24. Re:Seriously though, what would it be good for? by Tyrdium · · Score: 2, Funny

    Driving while reading the news or doing other stuff? Oh, I think it'll be the next killer application...

  25. it's all about the wallpaper by abes · · Score: 5, Funny

    Now I don't have to waste valuable CPU cycles on creating a wallpaper.. I can just put real wall paper behind my display.

  26. Re:Imagine the possiblilties by stratjakt · · Score: 2, Informative

    That already exists, its called smart glass, or electric glass.

    If you're well-to-do you can have windows in your house that you can set anywhere from completely transparent to opaque by turning a dial.

    It's basically just LCD tech. It's really expensive stuff, too.

    I think everyone missed the point of the article.

    This is different, actually having transparent transistors, so you could have an invisible CPU.

    --
    I don't need no instructions to know how to rock!!!!
  27. A major step forward for Linux! by Cid+Highwind · · Score: 3, Funny

    We could stack several transparent monitors and *finally* have alpha-blending in xfree86!

    --
    0 1 - just my two bits
  28. obsession by xv4n · · Score: 3, Funny

    okay... first the japanese develop the invisible coat, and now this see-through screens, is that a pattern or what?

  29. Index of Refraction by Ichijo · · Score: 2, Insightful

    They'll need to choose a material for the transistors that has the index of refraction as everything else in the display, otherwise it will be tough to see through (like frosted glass).

    It's the whole reason the Predator (in the movie with the same name) wasn't completely invisible. Those pesky physics always spoil a good time!

    --
    Any sufficiently unpopular but cohesive argument is indistinguishable from trolling.
  30. Yep, it does exist by green+pizza · · Score: 2, Interesting

    The display you're thinking of is a MultiLayerDisplay made by Deep Video Imaging.

    The top layer is a mostly transparent LCD (not perfectly transparent, but close enough) and the bottom layer is a standard LCD with a powerful backlight. The effect is amazing!

    I saw this display and a few others at SGI's developer conference last week -- gobs of really cool stereo 3D and psuedo-stereo 3D monitors. The coolest was one by SeeReal, a display that tracks the position of the user's eyes to provide a true stereo image without needing any special eyewear. The downside of most of the displays is that they're designed for one user only.

  31. Increased color resolution by thehun101 · · Score: 2, Interesting

    This would make it possible to stack the RGB pixels on top of each other making it possible to display any color with a single pixel. Would that make the resolution of my laptop three times greater?

    -the Hun

    --
    I'm a Tasty-vore. If it's Tasty, I'll eat it.
  32. Already exists! by green+pizza · · Score: 3, Interesting

    I got to play with a few such monitors at the Silicon Graphics Inc (SGI) developer conference last week. Deep Video Imaging has a multilayer display, exactly as you described. Also, SeeReal has a truely stereo (one image per eye) monitor that works by tracking the user's eye position. The downside of the SeeReal monitor is the lack of support for more than one user at a time.

  33. Hitachi already makes these by deanj · · Score: 4, Interesting
    Hitachi makes these already:

    Look through this

    There's a show going in Baltimore this week that has other vendors of this sort of technology too.

  34. Transparent Screens? by dgallina · · Score: 2, Interesting

    To each their own, but I for one don't especially want this. I *like* my flat-panel where I can seeit (and not behind it). :-)

  35. Re:Can't Wait!!! by wfmcwalter · · Score: 4, Interesting
    The light and mirrors solution is, from a safety perspective, greatly superior to a transparent screen. Existing projection-reflected-from-windshield systems use lenses to project the image focussed at infinity. That way a driver (whose eyes are already focussed at infinity when looking at the road ahead) doesn't have to pull focus in to 1m to read the HUD and then push focus back out to infinity to safely read the road ahead. Most of the time spent looking at your speedo on a normal car is the focus shift time, rather than the eye-movement time, so a projected HUD like the GM one you describe is the best solution. The HUD reticles used by military pilots also use projectors, and similarly project the pitch-ladder and other indicators at infinity, so they appear to float spectrally "out there" in front of the aircraft.

    For regular computer display purposes, a transparent screen doesn't seem terribly useful, due to contrast and "visual noise" interference from whatever is behind the screen (mitigated a bit if the screen is frosted).

    Still, there's plenty of possible applications for this:

    • Advertising displays (bus shelters, hoardings, etc.)
    • Programmable windows (push a button for tinted, another for clear, etc.)
    • Perhaps active military camouflage
    • Layer a bunch of these in a big sandwich and you've got a decent 2.5D display
    --
    ## W.Finlay McWalter ## http://www.mcwalter.org ##
  36. Re:Can't Wait!!! by Mr_Icon · · Score: 4, Funny
    Most of the time spent looking at your speedo on a normal car

    Sheesh. Remind me to never carpool with you.

    --
    If you open yourself to the foo, You and foo become one.
  37. LCD transparency by hackwrench · · Score: 2, Informative

    LCD screens aren't completely transparent and they have to be extra bright to make up for it.

    Here is a link to more information about lcd displays

    lcd transistor

  38. Re:3D display... by kosibar · · Score: 2, Interesting

    Imagine the size of the video card and its heat sink and fans on that 3D monitor! A video card for a single array of pixels can be pretty impressive these days - now we're rendering a matrix of pixels.

    Seems like resolution would have to be low for this to be introduced. If you take 1024x768 and make it, say 256 layers thick (since it seems that there would have to be spacing between each later) - that's 200 million pixels to manage! And the memory required for color depth! My goodness!

    Seems like a good thing for the entertainment business to prototype, though. Shall we get the Futurliners going again, GM?

    So, a couple of thoughts...

    What about the angle of the 3D monitor? A modern LCD is pretty good, but you still lose some color and/or clarity at an angle. Now you're adding depth and possibly a gap between layers. Seems like you'll have to be perfectly straight on in order to see things right. And when you are, you are looking down at some pixels (when you look at the bottom of the screen). How will the depth/gap be handled there?

    For the car application... what about sun light? My LCD monitor on my notebook is useless in the sun. Now we make them transparent and put them on a windshield?

    Can we handle some color depth issues with "overprinting"? If our color depth were only two, for the sake of the example, maybe yellow and blue, could we get green by displaying yellow on one layer and blue on the next layer?

    I guess we won't see these for a while! I want to see a demo/prototype on a Futurliner, though. :-)

  39. Has existed for a LONG time by moosesocks · · Score: 3, Informative

    Transparent LCD screens have existed for many, many years. They first appeared in the devices which were used to convert overhead projectors into a sort of ''poor man's projecter" (this was at the time when the only alternatives were 3-gun CRT projectors which were big, heavy, and expensive).

    How do you think LCD projectors work? Basically, they shine a bright light through a very small, transparent LCD.

    Desktop and Laptop LCDs are also transparent. Most simply have a piece of white plastic on the back of them (to reflect and evenly distribute light from the backlight. Of course, the big problem with LCDs are that they need to be backlit to increase contrast and brightness.

    I believe OLEDs were intended to eliminate the need for a backlight, and I'd presume that they'd be transparent like an LCD. Whichever way you look at, we've got some amazing technology headed our way in the next few years.

    --
    -- If you try to fail and succeed, which have you done? - Uli's moose
  40. HUDs, I think not. by mohaine · · Score: 3, Interesting

    I imagine would be better heads-up displays (HUDs) for vehicles

    Normally HUDs have the requirement of 'Focus as Infinity'. This allows you to read them without refocusing your eyes. A flat LCD wouldn't achive this.

    As a side effect of of the infitity focus, the size of a displayed image on a HUD doesn't descrease as you get farther away, only the viewable area gets smaller. It is pretty neat to be able to read the small letters on a HUD from across a room, even if you have to read them one at a time.

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  41. I have one of these screens today by Zork+the+Almighty · · Score: 2, Funny

    I already have a completely transparent screen today, now if I could just remember where I put the darn thing...

    --

    In Soviet America the banks rob you!
  42. Already been done! (-1, redundant) by Myself · · Score: 2, Informative

    Years ago I heard of a laptop where the backlight could be removed from the screen, and the hinge folded flat, so the whole unit could be set on top of an overhead projector.

    A little Googling turns up an educational review of projector options where it's briefly mentioned, but I was unable to find any specific reviews of the machines mentioned.

    Personally I want a display like that, with an optional diffuser to slip in back so I can use ambient light instead of the backlight, to save power.