Nanotech Based Display 217
yodha writes "Ntera showed their NanoChromics Display (NCD) recently. The display uses a nanotechnology process to create a more paper-like image than traditional LCD screen. It delivers significant power savings (they've shoehorned one into an iPod to give people a sense of what it looks like). The image can even remain on the screen for weeks without any power and doesn't need a backlight."
pr0n (Score:4, Funny)
Re:pr0n (Score:2, Funny)
Re:pr0n (Score:5, Funny)
Re:pr0n (Score:2)
Etch a sketch (Score:3, Funny)
just shake it.
more vaporware? (Score:3, Insightful)
I can see lots of applications (Score:2, Insightful)
A cool device that I would like to see, if this is thin enough, is an ebook device that actually looks like
Re:I can see lots of applications (Score:3, Insightful)
If you request a USB hookup, that means all the work might as well reside on a small USB stick or "Gumstix" computer in the spine anyway,
Re:more vaporware? (Score:2)
Re:more vaporware? (Score:5, Informative)
Re:more vaporware? (Score:2)
If it is as easy as they claim, then the cost to get these things into mass production will be quite a bit smaller.
e-paper vs. NCD vs. something else? (Score:2, Informative)
There's OLED and FED and LCD and all that, but 'e-paper' seems to imply a non-emissive display meant for reflective viewing, with no backlighting, and theoretically reduced power consump
iridigm (Score:3, Informative)
Re:more vaporware? (Score:3, Insightful)
A technology that incorporates discs of *glass*, like tft's, lcd's and this display, can't really be thought of as e-paper.
And though one should be sceptic when reading about "working prototypes", they seem to have actually demonstrated that modified iPod to people.
Most "e-paper" vaporwares has never reached such a working state...
Re:more vaporware? (Score:2, Insightful)
I agree the color version would be that much better and add to that a 60fps refresh rate and then you've got yourself a nifty technology. But if they can truly bring into production what they're claiming then this has some pretty decent applications.
Ipod paper (Score:3, Funny)
Re:Ipod paper (Score:3, Informative)
Or so they say...
Comment removed (Score:4, Funny)
Re:Stickers anyone (Score:3, Funny)
Soon to come: My monitor enhancement bitmap collection. Special one-pixel images which enhance your monitor image considerably if displayed at the right time on the right pixel.
Of course the determination of the correct image for your monitor doesn't just depend on your monitor type, but also on the manufacturer (even the serial number is important because no two monitors are completely the same), the graphics card (there are subtle differe
pr0n (Score:4, Funny)
could be a great marketing method:
-
tired of wasting electricity on porn?
have trouble fiddling around with all those dirty magazines?
then switch to NCD today!!!
-
Re:pr0n (Score:2, Funny)
Re:pr0n (Score:2)
iPod looks impressive but.. (Score:3, Interesting)
Re:iPod looks impressive but.. (Score:2)
Re:iPod looks impressive but.. (Score:2, Informative)
Not quite the market (Score:5, Interesting)
I agree though, it looks like they are having difficulties with the larger screen, as the Ipod screen held the image fine, but the author stated he had to keep refreshing the ebook.
Re:Not quite the market (Score:3, Insightful)
Re:Not quite the market (Score:2)
They say they can make color versions by performing the same processes that LCD's do. (multi layers) so a full color high contrast paper like display for my PDA would be a dream come true.
Imagine at least doubleing runtime because the backlight is no longer needed.
Re:iPod looks impressive but.. (Score:2)
Re:iPod looks impressive but.. (Score:3, Informative)
Re:iPod looks impressive but.. (Score:2)
Sounds good. (Score:5, Funny)
Very Nice (Score:5, Insightful)
RTFA, and still nothing (Score:2)
Re:RTFA, and still nothing (Score:5, Informative)
If you tried to make the bumps any larger, the colours would look all washed out, because you'd see more bump than dye.
Ob Buffy: The Vampire Slayer ref (Score:2)
Re:Very Nice (Score:2)
To me, nanotechnology means buildings things atom by atom. Not very many people have actually done that. I don't think it's fair to use the term nanotechnology for some chemical processes that produces these nanoscale structures. That's just to easy.
Re:Very Nice (Score:2)
Richard Smalley comes to mind...
Character assassination and nit-picking are so much easier than coming up with an original idea.
Look at
BTW, nanotech does not build things "atom by atom" - it is intended to build on a molecular scale, not a
Excerpt Copied Verbatum (Score:2)
Nanomites Amuck (Score:3, Funny)
An awesome feature... (Score:4, Interesting)
I didn't see any mention of this, but considering that they say 'it has the consistency of paper' and the extremely high resolution, if it were touch sensitive, it would replace paper/pencil in a way that PDAs couldn't. I couldn't doodle that well on a palm, but with nanotech resolution and a thin enough stylus, notes on a tablet PC would become a reality.
Just my thoughts on this.
consistency of paper (Score:3, Informative)
Maybe i missed it but i didn't read that 'it has the consistency of paper'. Notice the layers marked "glass" in the illustration. They did mention that it gave "the visual effect of ink on paper ".
Take away the glass and i assume your stylus will create the same effect as writing on wet tissue, sure.
Re:consistency of paper (Score:3, Insightful)
Besides, how would I lose my notes if they're all conveniently located on my PC? Where's the fun in that?
Power Consumption? (Score:5, Insightful)
Now, I'd like to think I'm not an idiot...but how will that save energy on displays which, for instance, require frequent repaints? Let's say that I'm running my iPod with one of those screens, as they show in the article. The thing has to draw segments of the bar frequently, update the time remaining once per second, draw the entire "Now playing:" row to create the "scroll" effect for long titles, redraw the top if you have a clock running up there, et cetera, et cetera.
Another example would be a touch-sensitive screen. In a drawing tablet, I'd imagine the repaint levels are not going to be particularly low, especially for full-tablet images...
I suppose my question becomes...is it actually less power-hungry than traditional LCDs for its practical uses?
Re:Power Consumption? (Score:3, Interesting)
An LCD on the other hand has constant power requirements, even if the image is static.
Re:Power Consumption? (Score:4, Interesting)
What I'm wondering about is internal illumination. Does it rely completely on external illumination, or can you fit a backlight into it so you can read in the dark?
Re: (Score:3, Informative)
Re:Power Consumption? (Score:3, Insightful)
However, for something like an e-book or a clock display the necessary refresh rate/percentage is relatively low - making this system optimal. Also, not having a backlight should sav
Re:Power Consumption? (Score:3, Interesting)
Apparently it draws "more" power to change the state of the molecules - due to having to move around charge. Otherwise, the base layer acts as a capacitor, with the stored charge maintaining the on/off state. So you end up spending power mostly on the pixels that change between lit and unlit. Even with full-screen repaints not all pixels switch (think scrolling a page: lots of pixels just stay white between successive
Re:Power Consumption? (Score:5, Insightful)
Likewise with a spectrum analyzer view on an mp3 player. It's rather rare for the area between the bars in the analyzer to change. It's also rare that the frame, labels under the bars, scale lines, etc. change.
In an LCD system, all of those pixels need to be refreshed every refresh cycle. In this system once the pixel is set, no energy is used to keep that pixel set at that level.
Looking at my screen right now, easily 95% or more of the screen is not changing from one second to the next. Yet the entire screen is using energy to refresh itself many times a second (50-70 Hz I believe for this screen)
The place where such an interface would be expected to use significantly more energy would be in a Television type interface. Including video games on a PC which you may or may not consider related.
I don't really get your example of a touch-sensitive screen. The areas that would draw energy to be repainted are those where the stylus or mouse pointer are located. Unless you are using some interface that draws lines all over the screen when you move the stylus from one pixel to another close to it, the only pixels that should be affected are those relevant to the brush or tool in question. For a Select this usually means a couple of lines of pixels vertically, and horizontally change. Applying effects, afrects a large portion of the screen, possibly even the entire screen, but it is usually a one shot event.
Even the notorious blink tag in html documents should only cause energy to be expended with the frequency of the blink.
Let's say that it takes 60 times as much energy for a pixel change on one of these screens than on an LCD (equivalent area example, if you get 9 'nano'-pixels in the same space as an lcd pixel, each nano-pixel using ~7 times as much energy as the lcd pixel, you get what 63 times as much energy used for that same area, close enoug to 60 for this example.) If over 90% of the screen is not changing from one refresh cycle to the next, then in 60 refresh cycles after the initial screen was set, you have approximate parity. That's one to two seconds. Obviously savings go up from there.
But that's just some off the cuff calculating and thoughts. I am sure someone out there, perhaps someone who thinks that 1/20th of a dollar is not the same as 5% of a dollar will elucidate my errors.
-Rusty
Re:Power Consumption? (Score:5, Funny)
Actually, my friend, 1/20th of a dollar is a nickel.
Respectfully yours,
The Elucidator
Mpeg advantage (Score:3, Interesting)
An MPEG decoder card designed for this screen embedded in a purpose built portable dvd player could actually be easier to implement than for a raster screen.
Re:Power Consumption? (Score:2)
Ok you might want some illumination, but for most cases you won't need it.
Nifty.. (Score:2)
Can't wait until this sort of technology becomes more widespread. Less power consumption for small devices is always good.
Re:Nifty.. (Score:2, Interesting)
I can't wait to get one... (Score:2)
It's funny everyone always talked about creating digital paper, so people could read the news like they do on a regular newspaper, but by the time it comes around no one will read the paper anymore...I bet that I have a weeks worth of newspapers on my door step right now...getting the news that way is too damn slow...
Re:I can't wait to get one... (Score:2)
Re:I can't wait to get one... (Score:2)
Re:I can't wait to get one... (Score:2)
That screen looks pretty cool. I guess to save power you'd keep a couple screen buffers in memory. Do a bitwise XOR maybe using hardware to come up with a difference map, and only flip the bits which changed.
fragility? (Score:4, Interesting)
there are a bunch of those... (Score:4, Insightful)
It's a good short term solution because switching manufacturing over to those kinds of technologies should be fairly easy.
The disadvantage is that those are still heavy glass sandwidches, with all the problems that brings with it. eInk, OLED, and other new display technologies give far more flexible and lightweight displays, and promise significant weight savings.
Re:there are a bunch of those... (Score:2)
Except that these need not be glasses; anything which probably is structurally sound, transparent and electrically insulating will do, like lots of plastics. You're probably right about flexibility, though.
Pffffft. big deal... (Score:5, Funny)
I figured out how to do that 30 years ago to my folks TV with my PONG console...
Re:Pffffft. big deal... (Score:5, Funny)
"The image can even remain on the screen for weeks without any power and doesn't need a backlight."
Warning: Do not browse porn before a power outage.
nano nano (Score:3, Insightful)
For me, Nanotech is enginering with Atoms; purposely building tiny machine on the Nanometer scale that do things like filter specific atoms to produce "pure" materials, act as a computer or build a rocket engine in a vat of liquid.
Re:nano nano (Score:2, Insightful)
That is what got the thought of 'nanotech' into the buzzword realm.
This is not that. Nor is chemestry. Nor is the semi-conductor industry. Or for that matter pretty much any product on the market that uses the nano modifier.
Effectively everything that is on the market that includes something with a
e-ink anyone? (Score:4, Informative)
Let us all hope they do not screw up with this technology like Sony/Philips did with E Ink [eink.com] and their Librie [www.sony.jp] ebook reader.
Re:e-ink anyone? (Score:2)
Diamond Age... (Score:4, Funny)
But will need a front light (Score:3, Interesting)
Re:But will need a front light (Score:4, Insightful)
Less eye strain! (Score:2, Insightful)
Hope this one actually works out! (Score:2)
In particular my understanding of how the material works is by depositing an electrochromatic material (i.e. a material which undergoes a chemical reaction changing its coloring or transparancy when an electric current is applied) on a very bumpy surface. This is ap
Hmm, seems to be a confusion... (Score:2)
If that's the case, give me a break. There's more important things to do with our time. Pardon me for jumping the gun... but if this is the best that Nanotechnology has to offer us, I'm dissapointed. Half of us here at Slashdo
Re:Hmm, seems to be a confusion... (Score:3, Interesting)
The second is usability life. Laptops range from 2 to 4 hours of usable time while reading a text document. Then you have to re-charge it. A book generally never needs to be recharge. It's feasable to take a book and sit on the beach for 8 hours, (I m
Re:Hmm, seems to be a confusion... (Score:2)
These are all things that change relatively infrequently (compared to a 20 or 70 Hz clock), so power not spent on refresh is significant. Or so goes the sales pitch, at least...
Etch-a-Sketch (Score:2)
From the article (Score:2, Funny)
Oh yeah, that makes perfect sense!
epaper (Score:2)
I really do love the excellent contrast.. I think I have a lot of trouble reading things on computer screens for extended periods because of it, but that display looks absolutely delcious to my eyes.
E-Ink (Score:2, Interesting)
E-Ink Website [eink.com]
It seems to me these guys are already doing this. Perhaps this is competition?
Odd review (Score:5, Insightful)
Okay, maybe they're really keen on the new tech and are trying to skew things its way.
But no, further down they discuss the eBook reader example. "This ebook looked great, and really shows off the power of the digital paper. Alas, I had to keep pressing the contrast button to refresh the image. Perhaps the technology is not as far along as the company suggested."
Huh? Anything you can achieve by pressing a button is easily achievable through software, isn't it? This is just a minor flaw in the implementation of this particular prototype... and says nothing useful about the actual screen.
Anyway, I'm sure more thoughtful reviews will be coming along soon -- this looks like pretty solid and exciting tech to me. It may not be suitable for many screens (i.e., it takes *more* power than a standard LCD if the pixels are all changing frequently... so you wouldn't watch a movie on it), but it'd be perfect for putting little status monitor screens on all kinds of things, plus for the applications they prototyped.
Re:Odd review (Score:4, Informative)
If I'm not mistaken, I think that was partially the point. The iPod with the NCD was off too. Right below the photo in question is written, "The image remains on the display even after power is removed, and does not require a backlight."
Re:Odd review (Score:2, Informative)
And as one of the comments pointed out, the display show the playing symbol, but the timing of the track is at 0:00 on two different shots even though the progress bar is 1/3 of the way across?
But no, further down they discuss the eBook reader example. "This ebook looked great, and really shows
Re:Odd review (Score:3, Insightful)
What I got out of the line you quote was: The need to refresh a static page that is supposed to be able to stay that way *without power* for weeks at a time suggests that the technology is not yet where they are trying to get it. It is not as stable as needed for their claim to be true.
Keeping it constantly refreshed with software to get around this deficiency sort of goes against a major feature touted by
Re:Odd review (Score:2)
It showed the new fancy ipod on, and the standard one off... right? Well, how do we know the new one was on? It could have been off, and just storing the last image on the screen. This could be a real problem for some technologies... IE: Think the computer was on, but it's really just frozen... moving the mouse around, etc.
Yes, there are ways around that of course (Make the last screen say "Your computer is now off"), but
That iPod (Score:2)
These tech articles are like concept cars (Score:2)
Re:Capitalism (Score:2)
Looking like paper... (Score:5, Informative)
Ordinary newsprint paper can reflect less than 85% of the light falling on it. Really white colour printer paper can reflect over 97% of the light. Some papers help this along a bit by adding 'optical brightners' - stuff that absorbs UV and flouresces in the blue to counter the natural yellowness of the paper. This suggests if you use a really white background, you can occupy over 10% of the surface with non-active black components, and the white will still look acceptable. This display uses TiO2, the white in white paint (not usually the white in paper), but it looks more like newsprint.
(2) Blackness
A typical print black may be a density of about 1.8. Against a good white, 2% reflectance can look pretty black. It is hard to know what they are getting here because this is a multilayered device , and we are seeing reflections from the other layers. Judging by eye, we do not have quite this constrast. A cholesteric LCD has similar storage properties, but loks contrasty (though the ones I have seen always look blue-black).
(3) Flatness
I guess the pixels are 0.1mm or larger. The device looks rectangular in cross-section from the diagram (NB: this diagram has no dimensions, and the test suggests it was churned out by marketing droids, rather than the engineers who developed it - caveat lector). This suggests the device may appear deep, and may cast shadows. This is not necessarily a problem: light can diffuse 0.1mm within paper to give things like the Yule-Neilsen effect, but we do not notice a dark halo around print. However, if the thing casts a sharp shadow like some LCDs, then this can look disturbing, particularly when you get moire with halftoning patterns. This depth problem will get a lot worse with a colour display.
(4) Resolution
A display is not likely to equal the typical 1800 pixels per inch (70 pixels per mm) for decent looking text. However, this is an unreasonable demand for a refreshable display.
Print on paper is a tough act to follow. This display looks okay, but no more than that. I would look for a flatter device (though I have little real detail on how flat this is). I worry about the switching time, and lifetime problems that dogged earlier electrochromic displays.
Disclaimer: my personal favourite technology is electrostrictive gels, which is why I could trot out these numbers.
eBooks that update (Score:2, Insightful)
The best part of this is the image staying without power...
Greetings cards with full motions pr0n videos!!
Shirt ties that gets hacked in meeting and turn into giant trouser snakes.
Oh the fun.
Hang on hang on - etch-a-sketch (Score:5, Funny)
But then I read the disclaimer, if you shake them the image disspears!
Nothing more than a uppity etch-a-sketch! Works on same principles.
Nanotech my ass!
The Pictures (Score:2, Funny)
I use lynx you insensitive clod.
Re:So when do we get it? (Score:2, Informative)
Considering the eBook prototype had an "issue", those won't be too far behind...but delayed, nonetheless.
Re:So when do we get it? (Score:2, Redundant)
Re:Refresh Rate anyone? (Score:5, Informative)
http://www.ntera.com/products/segmentedDisplays.a
Exactly what that means I'm not sure
But if someone wants to sign up for the datasheet downloads, then they can tell us for sure....
http://www.ntera.com/home/register.asp [ntera.com]
Re:Refresh Rate anyone? (Score:3, Informative)
Re:The Irish! (Score:2, Funny)
Re:The Irish! (Score:3, Interesting)
http://www.aber.ac.uk/media/Modules/MC30820/bic
Re:This is not nanotech (Score:5, Informative)
Re:Tree saviour at last (Score:2)