Canon and Toshiba Demonstrate SED TVs

Canon and Toshiba have been working on yet another display technology called SED (Surface-conduction Electron-emitter Display). The goal of SED is to bring some of the good qualities of CRT displays (response time, brightness, black levels) to a fixed pixel, very thin, low power display.

The technology works very similarly to older CRT displays, except on a much smaller scale. In a CRT display a Cathode Ray Tube (CRT) would shoot electrons at phosphors behind the viewing glass to effectively paint the picture you see on your monitor. In a SED display, individual electron emitters shoot electrons on phosphors behind the viewing screen to create the pixels on your screen.

CRT vs. SED - provided by Canon Technology

How SED Works - provided by Canon Technology

Since a large CRT isn't necessary, SED TVs can be several centimeters thick rather than tens of inches. But with the response time, brightness, color reproduction and black levels comparable to CRT displays, SED technology has the potential to be the best of both worlds.

Like LCD and DLP technologies, SED displays are fixed pixel displays and there are three electron emitters per pixel. The downside to a fixed pixel display of course is that you end up sacrificing quality if you display content isn't at the same resolution as the native resolution of your display. In other words, there should be a 1:1 mapping of content pixels to each group of RGB electron emitters to obtain the absolute best image quality. However, as hardware scalers become more and more powerful the 1:1 pixel mapping problem becomes less important.

About six years ago Canon and Toshiba started working on developing SED technology for consumer TVs, and they are supposed to start shipping the first SED panels later this year. At the show both companies had demos of SED TVs (they looked to be around 30" diagonally). The conditions weren't perfect to truly evaluate the technology since they were in extremely dark rooms and with no other displays available for direct comparison. That being said, the image produced looked very nice. With no other types of TVs in the room we can't really say how it compared to LCD or Plasma TVs (SED's closest competitors), but it did look very good.

One thing we did notice was that the displays looked like they had extremely low refresh rates. You could see the screen refreshing much like a CRT set to 60Hz. Granted the technology is still pre-production so that could explain the issue.

The dark bar across the screen is our camera capturing the visible refresh rate on the display

A Truly Wireless Tablet PC Samsung and MSI - iPod nano Clones


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  • Clauzii - Monday, January 09, 2006 - link

    Also here - to me it actually looks at it started happening after the last WindowsUpdate I had (4days ago - WMF-Fix?)

    Also IE6+XP SP2
  • BladeVenom - Monday, January 09, 2006 - link

    Screw Blue-ray discs, Sony can keep their DRM, and rootkits. I think I'll get Samsung's "Hyper DVD." Then I'll just wait till HD-DVD is cracked before I switch to a new format. Reply
  • GTMan - Monday, January 09, 2006 - link

    There is a 0.85" drive with a nearly identically sized drive beside it that is 1.8". Number must be wrong. Also one is 4 GB and the other is 80 GB. Maybe that should have been 8 GB. Reply
  • Tanclearas - Monday, January 09, 2006 - link

    Ok. What exactly is so great about the iPod interface? I have used it, and many other MP3 players, and fail to see how the iPod interface is so much better than most other players on the market. In fact, I have never understood why people believe the iPod is so different or so much better than a lot of its competitors. It wasn't the first, nor do I think it is "the best". I don't think I've seen any player that I could classify as "the best". Most seem to have all of the appropriate capabilities, with buttons/controls laid out in an effective way.

    The only thing I can say is that I have indeed used some players that had poor designs or build quality. In that regard, the iPod is better than some players out there, but is Apple building some sort of brand loyalty by secretly including some narcotic drug that gets delivered via the ear buds?
  • Questar - Monday, January 09, 2006 - link

    Define "best".

    I define best as easiest to use, no manual reading required.
  • Tanclearas - Tuesday, January 10, 2006 - link

    So buttons labelled with the standard icons for Play, Pause, Stop, Skip Forward, Skip Back, Rewind, Fast Forward, and a jog dial or D-Pad for menu navigation are too complicated for you? I've seen several designs like that. Others try to "copy" Apple's circular layout, and that is where many of the poor models that I mentioned fail. In some of those "copies", they use poor quality buttons, or the buttons are just too small.

    Come to think of it, Apple's touch-sensitive circle is more annoying than helpful.
  • AnnihilatorX - Monday, January 09, 2006 - link

    SED, LED LCD, OLED, Plasma
    Not mentioning glassesless 3D displays. Too much is going on

    Typo in Last bit:
    "some piece of mind to those still holding on to their older analog sets."

    piece -> peace
  • Aquila76 - Monday, January 09, 2006 - link

    Rmember when buying a TV was solely size based?
    'I'd like a 32" TV please.'
    'OK, here are some by Samsung, Toshiba, etc.'

    Now it's like trying to choose regular, free-range, organic, etc. at the grocery.
  • oneils - Thursday, January 12, 2006 - link

    Lol! Since I'm the youngest guy in the office, I inevitably get asked all sorts of techie questions. One of my colleagues asked for advice on purchasing an HDTV. I looked at's guide to HDTV and was blown away. Where have a I been these past two-three years? I had no idea how many options there were: plasma; edtv; lcd; crt rear projection; lcd rear projection...and probably a couple I am missing.

    I had no idea what to tell him, other than to stick to major brands (sony, samsung, panasonic etc...). I no my way around computers (I build my own rigs), but I only have a 36" CRT SDTV and was completely lost when I ventured into HDTV territory.

  • Aquila76 - Monday, January 09, 2006 - link

    Anybody able to use the forums today? I was able to log in, but when I try to go to any forums I've commented in, I get this (both Firefox and IE):

    Server Error in '/' Application.
    Column 'vchlicensekey' does not belong to table qGetLicenses.
    Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

    Exception Details: System.ArgumentException: Column 'vchlicensekey' does not belong to table qGetLicenses.

    Source Error:

    An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

    Stack Trace:

    [ArgumentException: Column 'vchlicensekey' does not belong to table qGetLicenses.]
    System.Data.DataRow.get_Item(String columnName) +121
    FuseTalk.API.InitialiseKeys() +324
    FuseTalk.API..ctor(String c) +237
    FuseTalkNet.Forum.Page_Load(Object sender, EventArgs e) +351
    System.EventHandler.Invoke(Object sender, EventArgs e) +0
    System.Web.UI.Control.OnLoad(EventArgs e) +67
    System.Web.UI.Control.LoadRecursive() +35
    System.Web.UI.Page.ProcessRequestMain() +750

    Version Information: Microsoft .NET Framework Version:1.1.4322.2032; ASP.NET Version:1.1.4322.2032

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