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New Substrate Tech Creates System LCDs

smartalix writes "Sharp Microelectronics has recently developed a new LCD substrate technology called Continuous-Grain Silicon (CG-Silicon), that enables device integration on a scale previously impossible. The technology enables the creation of System LCDs that integrate all driver and operation circuitry -- including digital logic, LCD driver, power supply, I/O interfaces, and signal-processing circuitry -- onto the glass itself. Eventually even the device's CPU will be included on the substrate. A key SLCD feature is the ability to dynamically control the resolution and color depth, providing output in multiple-resolution modes while lowering overall power consumption. A 3.7-in. SLCD created with CG-Silicon had a power consumption of 14 mW for color VGA, 8 mW for color QVGA, and 2 mW for monochrome QVGA. The first commercially available product that incorporates the System LCD architecture is Sharp's Zaurus SL-C700 PDA, recently released in Japan."

50 of 129 comments (clear)

  1. With the way the economy's been lately by Amsterdam+Vallon · · Score: 4, Funny

    ... I think I'd rather have a CDL than an LCD.

    --

    Reply or e-mail; don't vaguely moderate. Ex-O'Reilly/MIT employee, now a full-time Google employee.
  2. QVGA? by pestie · · Score: 3, Interesting

    What the bejesus is QVGA?

    1. Re:QVGA? by Anonymous Coward · · Score: 5, Informative

      QVGA

      QVGA is an emerging standard for Palm Powered devices. Traditionally, Palm Powered devices have featured 160 x 160 pixel screens. QVGA screens feature a resolution of 240 x 320 pixels. The QVGA standard was originally adopted for the HandEra 330. New products with built-in QVGA technology are anticipated within the coming year.

      QVGA-aware applications include support for a high-resolution bitmaps, additional fonts, and a collapsible 'virtual' graffiti area. Optionally, they can also support landscape and portrait screen rotation.

    2. Re:QVGA? by antop · · Score: 4, Informative

      Quarter VGA (320x240)

    3. Re:QVGA? by hazyshadeofwinter · · Score: 5, Funny

      See, over here it's a Quarter VGA with cheese, but in France they call that a Royale with Cheese.

      --
      Click here if you just like to click on shit.
    4. Re:QVGA? by Merlin42 · · Score: 2

      google says: 240x320 or 320x240

      I am guessing that it stands for qurater vga, where vga is 640x480.

      I think what is happening is that marketeers have decided that the average joe consumer doesn't lke to look at math problems when making a purchase so they have done away with numbers when talking about resolutions. These range from uxga, which i *think* refers to 1600x1200 down to qcif which i *think* is some god awful tiny resolution somewhere around 50x100. This leads to increadible amounts of confusion when purchasing products such as digital cameras, PDAs, laptops, and anything else using pixels. Personally I avoid any product labeled w/ letters instead of numbers ... I have a degree in math ... I LIKE NUMBERS!

    5. Re:QVGA? by SeanAhern · · Score: 3, Informative

      No. If the original poster is correct about QVGA being 240x320, then it's not the same.

      The Clie with the graffiti area displayed is 320x320. If you collapse the graffiti area, the display is 320x480.

      So the Clie would essentially be 2 QVGA displays stacked.

  3. what ever happened to.... by eracerblue · · Score: 3, Funny


    okay great. now my LCD can think for itself.

    but what ever happened to OLEDs & flexible LCDs?

  4. Good news... by Cutriss · · Score: 5, Interesting

    The first commercially available product that incorporates the System LCD architecture is Sharp's Zaurus SL-C700 PDA, recently released in Japan.

    If that's true, then it's about time. I can't count how many next-gen display technology announcements I've seen on /. about stuff that's supposed to make better displays cheaper, and then the product never comes to market.

    The fact that there's something already out there using it means that we're much more likely to see the technology become more widespread and adapted to other devices.

    --
    "Mod, mod, mod...and another troll bites the dust."
    1. Re:Good news... by First_In_Hell · · Score: 5, Interesting
      Keep waiting. How long does it take for any new technology to reach an affordable implementation and price? Look at flat-panel monitors. Just now are they becoming affordable. We had to enture $1500 15' inch LCDs that now sell for $250 which had crappier quality than a low end laptop screen.

      Also, what is right for the Japanese market is not always right over here. The way they use cell phones over there borders on some science-fiction movies, while companies are still trying to get online cell phone games to catch on over here.

    2. Re:Good news... by JesseL · · Score: 2

      It should be noted that the new Zaurus is already price competetive with similar high end PocketPCs (with only 1/4 the resolution) at around $700. While that's not exactly affordable to me, it compares pretty favorably with existing tech.

      BTW I saw the new Zaurus at CES last weekend and it has by far the best looking PDA display I've ever seen. It was incredibly sharp, bright, and readable even with very small fonts.

      --
      "Prefiero morir de pie que vivir siempre arrodillado!"
  5. Some information, good Sir by Amsterdam+Vallon · · Score: 5, Informative

    but what ever happened to OLEDs & flexible LCDs?

    OLED developments
    Flexible LCD manufacturing/selling information

    --

    Reply or e-mail; don't vaguely moderate. Ex-O'Reilly/MIT employee, now a full-time Google employee.
  6. Link to the actual article by DeadMoose · · Score: 5, Informative

    As much as I love trusting the poster to have not made up a news story...here is the actual press release.

  7. The future is HERE... again. by Ninja+Master+Gara · · Score: 4, Interesting
    It sounds truly awesome. Soon we'll be grafting pda's to our skin, as promised for decades. Dick Tracy watch?! Hah! I can play Tetris!

    Btw, a direct link to the news article is here

    --

    ---
    When I grow up, I want to be a kid again.
  8. More info on power consumption by hobbs · · Score: 5, Informative
    Wanting more info on this, I found: Sharp Slashes LCD Power Consumption which is from Feb 2001 and appears to be an announcement of the tech. I really wanted to know the relative power consumption (since my e740 pocketpc sucks power), and this articles says:
    Compared to a conventional active-matrix display, which is refreshed between 60 and 70 times per second, the ULC (ultra-low-power consumption) technology only sends signals when the screen image is changed. This results in a drop in power consumption to one-third conventional levels for moving images and one-thirtieth for still images
    1. Re:More info on power consumption by brejc8 · · Score: 2

      I've seen this on "Tommorows World" (its a British geek thing) a few years back. Im supprised that it didnt get hit by the tommorows world curse.
      Anyway, Its like using SRAM reather than constantly refreshing DRAM.

    2. Re:More info on power consumption by sryx · · Score: 2, Interesting

      With these screens ability to save power if less information changes maybe this will bring about a retro-revolution of cleaner simpler displays. I for one (being a computer user since MS DOS 5.0, yeah I know around here that's young) really enjoyed the simple low color depth interfaces of old graphical applications (Remember 3D Studio R3? No not 3D Studio MAX, but the original DOS version).
      These applications pushed the available architecture as far and as fast as they could. Then suddenly CPU cycles became massively abundant (FPS freaks will disagree but come on, how many GHz or even MHz do you need to write a essay) and interfaces became cluttered, background images for dialogue boxes and shiny glowing graphical buttons for each individual task started popping up all over that place.
      I know, I know, there where bad applications back then, but the landscape seemed more abundant with good applications. Well I should quit typing before I sound like a complete raving old fart ("back when I was a kid..." ect ect)... to late.
      -Jason

  9. superman! by WPIDalamar · · Score: 3, Interesting


    circutry on glass?

    Sweet, so when can we have computers that come on crystals like in the superman movie.

    Oooh, can the glass go transparent? I'd love a window that doubles as a computer. I bet it can't :(

    1. Re:superman! by matt_martin · · Score: 3, Funny

      >Sweet, so when can we have computers that come on crystals like in the superman movie.

      Uhhh, so silicon is, uhh like, already a crystal, or something...

      --
      Lurking in the desert
    2. Re:superman! by Link310 · · Score: 2

      IBM, Thinkpad 755CV. It's an old, but spiffy laptop...Ted Selker still has one (I believe it was his idea in the first place...), and I've actually played with it.

      See figure 6 of this document for a picture. See this article for more info. Then, if you want more, ask google.

  10. Practical Uses by Tofino · · Score: 2, Funny

    Practical uses of this new technology include drawing the layman a picture detailed enough to explain it...

  11. Re:But.. by robocord · · Score: 2, Informative

    I hope you're joking. It *does* run Linux. It's the big brother to the Sharp SL-5000 and SL-5500. The SL-C700 is a clamshell version of the same gadget, and isn't available in the US yes.

  12. So does this mean... by ZaMoose · · Score: 5, Insightful

    So then, what happens when I crack the screen? Time for an all-new Zaurus?

    Wait a tick... that's bloody brilliant on Sharp's part!

    I'm going to work on getting Sony and Nintendo to start integrating processing functionality into their controllers. Then, when somebody gets pissed and breaks one, they'll have to buy a whole new console!

    I'm off to the USPTO, suckers!

    --
    I wish I had a kryptonite cross, because then you could keep Dracula and Superman away.
    1. Re:So does this mean... by jandrese · · Score: 5, Insightful

      As opposed to current PDA technology that still works great after you crack the screen???

      The big difference I can see is the opportunity to make really thin electronics, since you don't have to have the circut board behind the display anymore (just the batteries).

      --

      I read the internet for the articles.
    2. Re:So does this mean... by NanoGator · · Score: 2

      "So then, what happens when I crack the screen? Time for an all-new Zaurus?"

      This comment might actually be insightful if the original Zaurus or any other Palm/Pocket PC device ever had a VGA out.

      --
      "Derp de derp."
    3. Re:So does this mean... by ZaMoose · · Score: 2

      If you telnet into your current Zaurus with a cracked screen, you may at least retrieve some of the information stored on it. If you crack an "intelligent screen" upon which the PDA itself depends, well, you're hosed.

      Good enough for you?

      --
      I wish I had a kryptonite cross, because then you could keep Dracula and Superman away.
  13. Does that mean .... by binaryDigit · · Score: 4, Funny

    Oooh circuitry on the lcd panel itself. Does that mean that I'll get floating point errors and gp's if I press the glass to see the pretty colors?

  14. STNG glass computers, here we come? by jpellino · · Score: 2

    Does this mean we'll be ablt to have those walkabout glass computer/tablet/pda/displays like on STNG?

    Something else cheaper that that can be ubiquitous computing? That I can sit on and break?

    Can the next DMCA outlaw back pockets?

    Yaaaay.

    --
    "Win treats sysadmins better than users. Mac treats users better than sysadmins. Linux treats everyone like sysadmins."
  15. Here's a recent, comprehensive artice from EETimes by Anonymous Coward · · Score: 2, Informative

    The state of the OLED industry, with some timelines.

  16. System shock.. by eieken · · Score: 5, Funny

    LCD driver, power supply, I/O interfaces CAUTION: To reduce the risk of electric shock, do not touch the screen.

    --
    Meet new people, and kill them.
  17. Carppy transistors by brejc8 · · Score: 3, Interesting

    A few months ago I was talking to someone who was working on using the transistors on LCDs to do actual computation. The problem was thet there is a hude varioation in speed between individual transistors. Making the worst case delay and clock distribution too painful to make the system usefull for anything.

    They were at the Async confrence and they were very intrested in doing everything asynchronously. It makes sence as implementing the logic in asynchronous circuits solves both problems.

  18. Here's a picture... by rushiferu · · Score: 2, Informative

    Plenty more to be found on google.

    http://www.ixbt.com/short/2k2-11/sharp102.jpg

  19. Dynamic display power management - wow by dara · · Score: 2, Interesting

    The part that really interests me is the ability of the same screen to use less power depending on what you want to do. I own a monochrome PDA for battery reasons, but I'd love to be able to switch to color mode when displaying photos or color maps. I can imagine resolution changes too - QVGA (the Q IS confusing, here it means quarter, but QUXGA means Quad UXGA) might be fine for looking up an address, but for a 3" by 4" photo display, I'd want Quad XGA (320 dpi is not possible now, but someday). Then you could vary between (1/4, 1, 4) x VGA to save power.

    Of course, a flexible OLED would be great if it uses no more power and is flexible to boot.

    Dara Parsavand

  20. The New Zaurus by yoz · · Score: 3, Informative

    One word: WANT.

    Here's the press release and spec sheet.

    It's coming to the US... ... but Dynamism have done their own English port already. (Any stories/opinions of Dynamism?)

    Keyboard doesn't look great (but at least it's better than the original tiny Zaurus one)

    I've always wanted something tiny I could carry around that would give me decent QWERTY with a landscape screen capable of displaying VT100 readably (or, better, actual graphics) that could also connect to the net when I'm out and about. This looks like it (though expansion is limited to SD & CF - that's enough for WiFi and BlueTooth, though.)

    -- Yoz

    1. Re:The New Zaurus by theLOUDroom · · Score: 2

      Check out this page for a discussion that may interest you

      I have an sl-5500 and while it's not for everybody, I definately like it.

      --
      Life is too short to proofread.
    2. Re:The New Zaurus by Anonymous+Bullard · · Score: 2

      Yummy indeed!

      While I've so far managed to avoid PDAs these Zaurus guys are making it increasingly difficult to avoid the temptation.

      At $700 the SL-C700 is really targeted for productivity applications, besides the usual organizer functions, but once their price drops to around $500 and they get the ability to stream broadcast quality video or TV (which I control remotely through a wireless IEEE 802.11 connection to my desktop doubling as DVR) and to (dis)play video CD/DVD discs through USB2 or Firewire-connected portable player I'm out of excuses.

      Now that's the kind of remote Linux terminal I could do with.

      --

      Should invading one's peaceful neighbours be opposed, or rewarded with trade deals?

  21. LCD's Grafted to Skin by asscroft · · Score: 2, Funny

    If your wife had an LCD Display on her back, you could watch football while you made love to her from behind, or watch pr0n, or something equally appalling. How cool would that be?!!!

    --
    because I have been enjoined by this Holy Office to abandon the false opinion which maintains that the Sun is the centre
  22. Duplicate story from a while ago... by printman · · Score: 2

    This is a dup and was on Slashdot last year...

    --
    I print, therefore I am.
  23. getting SL-C700 Zaurus in USA by porky_pig_jr · · Score: 3, Informative

    http://www.dynamism.com/zaurus/index.shtml

  24. This is bad news... by webmaven · · Score: 3, Interesting

    Crap. This means that we'll be dealing with displays that have completely integrated copy-protection mechanisms.

    Even if current efforts such as Intel's HDCP are flawed, future versions of these technologies may not be amenable to cryptographic attacks, and hardware based attacks will be extremely difficult if the circuitry is embedded in the screen itself.

    This falls perfectly in line with the Broadcast Protection Discussion Group's desire to mandate implementation of a broadcast flag that all devices must honor.

    --
    The real Webmaven is user ID 27463. I don't rate an imposter, because my ID is such a lame-ass high number.
  25. Re:Howzabout a foldable/rollable LCD? by zentigger · · Score: 2, Interesting

    actually this is the perfect solution for display to glasses/goggles. A transparent medium capable of displaying images and performing processing? You could have an entire computer built right on to a contact lens!

    --

    the above is my personal opinion and does not necessarily reflect that of the little voices in my head

  26. Re:Howzabout a foldable/rollable LCD? by cybermace5 · · Score: 3, Funny

    "v-paper" eh?

    I suggest the brand name 'Vaper'.

    --
    ...
  27. I wonder... by wazzzup · · Score: 4, Insightful

    This technology combined with technology derived from Apple's new patent application, I wonder if we could have iPod's where the case itself displays the funky visualizations?

    Just a thought.

  28. But it's also good news by billstewart · · Score: 2

    ... and for just about the same reason, which is that you can build communication systems with cryptographic protection that don't have hooks for wiretappers. It's really two sides of the same coin, with the big difference being who decides what features they want to include and who decides the content being communicated. If your one-piece-communicator has hooks in it that let the Department of Homeland Security listen in on your video calls, the same features can also let Joe Script-Kiddie copy the movies you're watching on it. And besides, you didn't really want to take the lame analog feed from your monitor or use a logic probe to extract the signals between your CPU and onboard video GPU or audio d/a converter anyway just to pirate movies as opposed to grabbing them digitally where you can transmit or compress them, so a device with integrated LCD and video display won't change that much.

    --

    Bill Stewart
    New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
  29. Re:Cost? by be-fan · · Score: 2

    The SL-C700 is about $500, which isn't all that bad for a product that isn't in the states yet, and one that uses such cool technology. Comparable to retail prices for the Toshiba PDAs, actually.

    --
    A deep unwavering belief is a sure sign you're missing something...
  30. Sharp Wizard OZ-770PC by Wraithlyn · · Score: 2

    Check out the Sharp Wizard OZ-770PC. (Big picture, specifications)

    It's got a HUGE (for a handheld) keyboard, big enough to actually touch type at probably 50-75% normal speed, and a nice backlit landscape screen that can do proportional text and graphics (B&W only tho). A pair of AA's lasts 3-6 MONTHS in this thing.

    It has 3MB of flash mem, and a genuine Z80 processor! You can code for this thing yourself in Basic, C, or even assembler, and there's lots of user written stuff to download. It's like having a complete 286-era system that fits in your shirt pocket.

    Now, it's not Net enabled per se, however, it has a serial port, and there is terminal software written for it, so in theory you can connect it to a cell phone and access the Net through that.

    It's several years old and discontinued, I lost mine recently and had to turn to E-Bay for a replacement. It's a really wonderful hacker's PDA though, and it has great community support. When I lost my original one, I did a bunch of searching for a modern PDA that has a similar design (large keyboard, landscape screen, clamshell case) and came up with nothing, especially for as low a price (it was $100 USD new)

    --
    "Mind, as manifested by the capacity to make choices, is to some extent present in every electron." -Freeman Dyson
  31. Yacking cereal box by peter303 · · Score: 2

    I liked the part were a cereal box advertising display started spamming a commercial at Tom Cruise during a meal and he tosses it away. In minority rport, video displays were as cheap and ubiquitous a as paper. However, I think the inspiration was "electronic ink", a somewhat different technology.

  32. Interactive Views and specs on the Zaurus SL-C700 by erlkonig · · Score: 3, Informative

    On this flashy japanese page you can look at the C700 from different angles in both the input and viewing modes, as well as see the english specs.

    OS: Linux Embedix

    CPU: Intel XScaleTM(PXA250 400MHz)

    RAM: Flash 64MB (user area about 30MB) and SDRAM 32MB (workarea)

    Screen: 640x480 ("dots") 64K colors

    Cardslots: SD, CF type II.

    ?: 4 hours, 50 minutes

    Dimensions: 120mm W x 83 mm D x 18.6 mm H

    Mass: 225g

    The front page to get to this was from http://sl.ezaurus.com/ , from http://www.sharp.co.jp/

  33. No, you don't. by LightStruk · · Score: 2, Informative

    You need 6-7W for the backlight if you're using a CCFL (cold cathode flourescent lamp) to light the LCD, and then only for laptop screens. PDAs (and the new Gameboy Advance SP) use white LEDs, which run at low voltages and draw current on the order of milliamps, not amps.

  34. a news story from Japanese site by shibatch · · Score: 2, Informative

    Here

    At Oct.22, Sharp coporation announced CG silicon technology.
    CG silicon(continuous grain silicon) has continuity at grain boundary. Movement factor of electron is 600 times of that of amorphous silicon.

    Z80 CPU implemented on a glass
    Z80 on a glass is really working on a MZ-80 computer
    CG silicon has high movement factor of electoron
    Road map of System LCD architecture