Technology SED?

[guada 2]

Hello,

Do there exist currently tubes CRT accepting full resolution HDTV 1920*1080 pixels?

:thanks:

[unskinnyboy]

Go here (http://www.epinions.com/Monitors--reviews--technology_crt_conventional--~all-max_resolution__list_) and you can see a lot of CRT monitors with max.res above 1920 x 1140.

[guada 2]

It's perfect. But it aren't equipped with technology SED. :(

[unskinnyboy]

So what exactly are you looking for? CRT or SED? Because, CRT != SED. It is an improvement on CRT. But SED monitors are still few months away from being commercially available, afaik. Expect them to be quite expensive to start with. When it does come out, it will support the HDTV resolution which you wanted.

[guada 2]

unskinnyboy,
Thank you for these informations...

Bye.

[Shinigami-Sama]

SED?
improved CRT?
like super enhanced definition?
:confused:

[guada 2]

Looks Shinigami-Sama,

SOURCE: TOSHIBA News Berlin, le 6 septembre 2005



New technology SED, Surface-conduction Electron-emitter Display, offers a quality of image single and hitherto unattainable with technologies of flat-faced screens current.
Toshiba and Canon shared their know-how to develop a screen which combines the quality of image higher of the tube television sets cathode ray on a flagstone as punt and defined as the flagstones LCD or plasma.


Technology SED

As for the cathode ray tubes (CRT), technology SED is based on the projection of electrons on a screen of glass covered with phosphorus. The similarity stops there, because instead of the single electron gun of the cathode ray tube, panel SED is papered of as many nano - transmitters electron it counts pixels.

The key of these transmitters of electron, with the coe ur of the SED, is a microscopic slit, of some nanometers broad, located between two electric poles. When an electrical current is applied to the poles, the electrons are emitted on a side of the slit and a certain number of them disperses towards the other side; but accelerated by the voltage applied between the two plates of substrate of glass, they are projected towards the substrate of frontage and enter in collision with the layer of phosphorus, which creates the emission of light and the formation of an image.


The process of light output of the SED is thus very close to the CRT, which enables him to offer a dynamic colorimetry, a pricked image, a raised contrast, a true level of black, a reactivity and an exceptional fluidity, all qualities that cannot equalize panels LCD and plasmas. Moreover, technology SED removes Be care of the deflector of electron beam of the CRT, authorizing sizes of screen exceeding the meter for a few centimetres of deep or only.
The size of the first screens SED which will be launched on the market will be 50 inches +.


Benefit of technology SED

This innovating technology makes it possible to exceed the limits of the traditional screens.
The SED thus offers a full resolution HDTV of 1920x1080 pixels, developed specifically to restore films high definition with best of their quality.
It brings an image of an exceptional quality, thanks to a response time quasi-no one, a single rate of contrast of 100.000:1 and one extremely fine graduation of the colors.

It also guarantees to benefit from this quality of image some is the angle of vision compared to the screen: the luminosity and the clearness of the image do not vary, whether one is placed vis-a-vis the screen or on the side.

Lastly, on line with the current ecological concerns, the SED can be regarded as respectful environment compared with other technologies of modern flat-faced screen. It converts the electric power into light of way more effective than the other screens, thus consuming half minus qu ' a plasma and 1/3 less than one of the same LCD cuts.

Exceptional quality of image, energy comfort and saving resolutely make SED, the television set of the future.



SED: key characteristics and figures

• Full resolution HDTV 1920 X 1080 pixels
• Raised contrast, major blacks, dynamic colors
• Fluid images thanks to a latency time quasi-no one
• Not retro lighting, therefore not of constraint of angle of sight
• More low fuel consumption than the other screens
• Screens of big size with the quality of image CRT and a flat ultra design

Bye.

[CWR03]

That's amazing - a contrast ratio of 100,000:1? The best I've seen on any other screen is 5,000:1, and that screen is $15,000. Half the energy consumption of a plasma will hopefully mean it runs cooler - plasmas put off a lot of heat.

[guada 2]

CWR03, :)

You are not the only one with being surprised by this number.
It would be interesting to know the true value.......

[Shinigami-Sama]

wow
nice set, to bad I don't have about a half million to afford it, thanks for the specs there guada

[Wolfman]

babelfish xltrs are dreadful.. must be how they write their instruction manuals :p
sounds nice tho "Fluid images thanks to a latency time quasi-no one " :confused:
I'll keep my 26" WS CRT and just move my chair a bit closer :(

[reepa]

That's amazing - a contrast ratio of 100,000:1? The best I've seen on any other screen is 5,000:1, and that screen is $15,000. Half the energy consumption of a plasma will hopefully mean it runs cooler - plasmas put off a lot of heat.

If you have a good old CRT monitor, turn the brightness down to its minimum and you have a huge contrast ratio, since contrast ratio is maximum brightness / minimum brightness, and at 0% brightness setting CRTs output practically no light, which gets you huge contrast numbers.

[Joe Fenton]

This is just a variation on the old cold-cathode emission flatscreen CRT. I was wondering when someone was finally going to bring out a model.

[guada 2]

Hello Joe Fenton,

What would you say of a projection in 3d with a system of projection centered on the hologram?

That can be an idea, even a dream. No....

[Joe Fenton]

True holographic systems are close. LCoS (Liquid Crystal on Silicon) can give a definition fine enough to make proper diffraction gratings. Diffraction gratings are what create true holograms. You'd need to calculate the gratings on the fly, but graphics and numerical processing has gotten good enough to do that.

[guada 2]

Hello Fenton it's mee again;

I appreciate a lot your reasoning. :)
Except the SED technology, what do you know others?
which successors would you consider?

Would you have an audiovisual technology that you like overcoat all?

:thanks:

[Joe Fenton]

I mostly read the IEEE Procedings on Consumer Electronics to see what's being worked on for the next decade... they had articles on plasma displays about ten years ago. As far as what's coming (or here) in consumer video display - LCD, plasma, CRT (still hanging on), SED (or CCE for old-timers like me), and OLED.

OLED has been really catching on in small devices like cameras. They are just getting to the point where we may see TVs made using this tech. Pros: no backlights and filters, superior response time; cons: don't age very well, not too bright just yet, still working on making bigger panels.

[Mug Funky]

holographic displays sound good. would these also be in colour? i guess they could be, but i've yet to see a colour hologram (do they exist?).

imagine the GPU you'd need to play "doom 9" in true 3d...

[CWR03]

I had read recently about a different type of LCD currently being tested in the iPod - instead of needing power to maintain the image, it changes with a pulse of power and maintains that setting until it's changed. The result: response times of less than 2 ms and lower power consumption since it takes less energy overall to change the image than to maintain it. The interesting thing is that if the display is powered off with an image on it, it maintains it indefinitely.

[Mug Funky]

that's good news for ebooks... not much use for cameras though (or TVs really). good to hear apple are trying their utmost to conserve battery life. they could always make the batteries user-servicable though...

[Joe Fenton]

holographic displays sound good. would these also be in colour? i guess they could be, but i've yet to see a colour hologram (do they exist?).

imagine the GPU you'd need to play "doom 9" in true 3d...

I read an article about someone doing something similar to what I proposed in their lab using a standard helium-neon laser (red). You'd need a separate laser and grating for each color, which definitely adds to the complexity. At least they finally have solid state blue lasers now, so all your lasers can be the solid state variety. Given the size of LCoS, I suppose you could put all three color gratings on the same die. That would certainly aid in convergence issues.

Full color holograms (using film) do exist. I saw a setup using gas lasers for color holography at Texas Tech some years back. They make the hologram in three steps exactly the way they make monochrome holograms - one exposure per color. Then you just beam the proper color laser through the proper color film and make sure it all lines up right... It certainly isn't ready for use with "live" settings.

Holograms mostly involve fourier calculations, so you'd need something that did FFT at a high rate. I think modern GPUs and DSPs are fast enough to at least start working on these displays. I've seen software for synthetic holograms that drive film recorders, but it wasn't real-time. Someone will make it real-time in the next decade I'm certain.

[Shinigami-Sama]

that kinda reminds me of those helio<SP?> displays I saw a while back...

[Joe Fenton]

http://www.io2technology.com/

It isn't 3D - it's projecting a normal 2D display onto ionized air. Combine an Ionic Breeze air purifier with a projection TV and that's what you got.

[Shinigami-Sama]

lol
it says it has 3d capability on that site, my hardware was going on about them for a while for no appernt reason a while back o.O

[Joe Fenton]

All 2D displays are "3D capable"... with a set of LCD glasses or even those color filters over each eye. They aren't "true" 3D.

[Shinigami-Sama]

it said they wern't required when I was reading that page a few days ago, at least Im prety sure it said that <.<
either way, you wouldn't complain if someone gave you one eh?

[Joe Fenton]

Heck no! I'll take fifteen or twenty, thank you! :D

There have been some advances in simulated 3D on 2D displays... mostly in the LCD field. It could be that the IO2 folks have been working on that as well. It's a little hard to separate the marketing from the fact with the IO2 since it's still in the demo phase. I'm witholding final judgement until some third-party gets one to test and does a nice article on it.

[Audionut]

It took a year and a half to add some commentary, and you choose a 13 year old thread. :goodpost:

[Katie Boundary]

Does this mean we're not getting high-definition CRTs after all?

[foxyshadis]

Rule 18: Forum needs new posts.

I just retired a 2001-era Trinitron, because the owner was becoming so nearsighted he couldn't even make out DOS text!