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Discussion Starter · #1 ·
I am very interested in develpmnets in FED, SED and NED. These flat and thin direct view crt technologies holds promise. I realize that a lot of investment is going into plasma. It is amazing what has been achieved with plasma but how smart is it to try and make a display technology out of flourescent tubes. Is it not necessary with very sophisticated electronics to make plasma screens look good. It is also difficult to achieve high resolution panels.


What kind of resolution can be achieved with "flat crt" technology?
 

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Mattias: I don't share your pessimism on plasma, especially given Samsung put out a white paper on how they will eventually build a 42" 1920 x 1080 plasma. I also don't get why fluorescent tubes are bad vs. fluorescent material stuck to glass, but....


.... it would seem that the only resolution limitations on "traditional" FEDs and also SEDs are electrode spacing. I'd imagine that early models will offer fairly high resolution and that we'll see that improve over time. NEDs are likely to allow for very tiny electrodes due to the smallness of the nanotubes, but are probably further from market.


In other words, I'd say the resolution potential of this technology is very promising indeed. In the SED descriptions -- and this is the most likely variant to come to market -- there is no interpixel barrier needed (unlike plasma or LCD). Instead, the electrode merely fires across a nanoscopic gap to hit the phosphor.


I'm not sure about the color triplets and whether there are indeed three electrodes per pixel. But that would seem to be the limiting factor on resolution, at least initially.


Mark
 

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Jamie's guess is right, AFAIK. If you overdrive them, the results will be image unfriendly.


It's all the advantages of CRT picture quality with only some of the drawbacks.
 

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Discussion Starter · #6 ·
Rogo

Plasma optimist always:)

Yes I see that the plasmas are coming. Someone wrote or I read somewhere that in Japan they are looking to newer technologies since Plasma will be a Chinese venture eventually. They need something even more cutting edge. This is where I see xed displays. Someone shopping for a new display in Sweden said he would not chose plasma because of screendoor. The ribbon structure was to evident he thought. It was good to hear that SED will have a very high fill factor.


I would also like to know the brightness of direct view crt. We see the specs for plasmas , but how can I compare with crt unless I have a number for crt. Plasmas seem to be over 500 cd per sq meter. What is the value for crt?


edit

It just my assumption that controlling electrons hitting phosphor is easier than controlling pwm gas discharges. It seems very natural to progress to thin crt. CRT is so well understood. so we will get great color control, grey scale and saturation in a thinner box than plasma. The bad thing is that I will have to pay for that thin package , compare plasma vs crt with thin crt vs plasma. Is that comparison reasonable.
 

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Great thread, this one...


Thanks for the responses from all...


I am watching the development of the various Field Emmision Display technologies with great intrest....


I am both excited and hopeful that Toshiba will, at last, show some SED products in January (CES)....and I hope they will undercut Plasmas pricing (which Toshiba has indicated) which would create more competition within the entire Flat Screen field and benefit consumers with potentially lower prices....


Motorola is talking big with NEDs....the production breakthroughs they suggests to have found would be a boon not just to CNT-based Flat Screens but could have a ripple effect in the entire tech field....hopefully Motorola's research nets them more progress as carbon nanotubes could very well be the next big thing....


I read a quote from a Motorola scientist (july 2003)suggesting licensed NED products would arrive in
 

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Quote:
Originally posted by Ohlson
Rogo

Plasma optimist always:)
Always has and always will be. :) Thats until OLED's show up. :D


BTW, carbon nanotubes will not only revolutionize the flat panl display industry but the electronics industry as a whole. We are talking of replacing individual transistors.
 

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Mattias, I didn't mean my remark to be xED critical. I really meant in a positive way: xEDs should have all the CRT advantages --> Viewing angle, contrast ratio, high intrinsic brightness, tiny effective pixel size, etc.


And only a few of the drawbacks --> Still could be burned in (although unlikely), still could bloom (although easily corrected)... Not fat / deep / heavy... Not size limited... Et al.


VBS, I am bullish on nanotubes as well, but Motorola's PR notwithstanding, it is quite likely that there won't be a commercial nanotube display in this decade of any size.


I do love that all the future excitement to surpass plasma is OLED and xED -- both of which can be burned in. :)
 

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Yes, I will have to trade in my LCD projector for a CRT or something. :) :) :)
 

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Quote:
Originally posted by Ohlson
I am very interested in develpmnets in FED, SED and NED.
And I'm very interested in being LED to BED on the day that I WED and being FED till I'm RED.


(Insert feeble laughter here.)


My humblest apologies for the above -- I just couldn't resist. Please return to your previously intelligent discussion.


(I also like LED Zeppelin.)
 

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Don't forget the F!T tube


Fast intelligent tracking - A CRT without a shadow mask


SID 2002,2003 show had some prototype models that were pretty amazing. They were the size of a pickup truck, but man they drew a nice frame.


I wonder if they will combine this with FED?
 

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Xrox, what is the advantage of combining a tube technology with a FED, which is essentially a million teeny tubes and by nature has no shadow mask?
 

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Rogo,


I thought the vast improvement in color tracking and that F!T gives could be applicable.


But your right, since each individual electron beam originates so close to its target it is probably not needed.
 

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While doing a search on CNT displays I found this announcement by ANI:

http://www.nanoelectronicsplanet.com...085391,00.html

Quote:
ANI Teams With Display Companies for Nanotube TV



Nano-Proprietary, Inc., formerly SI Diamond, announced that its subsidiary Applied Nanotech, Inc. (ANI) has formed a team with prominent Japanese display component manufacturers to produce a 25-inch diagonal, full-color, carbon nanotube (CNT) television prototype.


The purpose of the agreement and subsequent effort is to demonstrate that carbon nanotube televisions in field emission mode have progressed enough to enable high volume manufacturing.


This agreement comes on the heels of ANI's announcement that it will reveal to the world its 14-inch diagonal black-and-white carbon nanotube TV at International Display Workshop, Dec. 3 to 5 in Fukuoka, Japan.


ANI and its partners will each focus on its specific expertise to provide a component at its own cost according to ANI's design for the 25-inch, full-color CNT television prototype. Key display component manufacturers in the fields of CNT manufacturing, printing techniques, providers of key components for the plasma and CRT industries, fine dispensing technologies, vacuum sealing equipment, one of the largest glass substrate manufacturers for displays and others have agreed to be team members. The names of the individual team members remain confidential for competitive reasons.


Work on the program begins Oct. 1, 2003 with the goal of presenting a 25-inch, full-color CNT television by late spring of 2004. The critical and the most important steps related to the processing of the carbon nanotubes films will be executed by ANI in Japan. The program in Japan will be lead by Mr. Charlie Kasano, an experienced and reputable display specialist in Japan, formerly with Ise/Noritake. The resolution of the display will be compatible with a 60-inch or larger HDTV format display that is the target product.


"In my experience, the real breakthroughs in the display industry were made by display component makers before the large companies decided to move into full-scale manufacturing," said Dr. Zvi Yaniv, President and CEO of Applied Nanotech, Inc. "We decided to take the same path and demonstrate the viability of CNT TVs in such a way as to accelerate commercialization."



September 30, 2003
 

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KLee, thanks for that mind. I merely note that the announcement basically implies that a 25" product could, in theory, ship in 2005... Certainly nothing could happen before that and given the players involved, well, this is less exciting to me than hearing that Sony had licensed Motorola's technology, for example, or that Samsung was beginning production on their own such display.
 

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The 2nd to last paragraph indicates that the target product would be a 60-inch-class product, not a 25-incher.....but I understand what you are saying and appreciate the feedback:)


Yes, Sony licensing NED from Motorola would be huge :D
 

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I mis-read the sentence to which you refer. But regardless, I'd imagine any such 60" product is 5 years away from market... and certainly 3.
 

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Discussion Starter · #20 ·
My prediction based on insanse optimism. In 4Q 2005 you will be able to buy a display based on this technology.


Specs

42 inch display

1 inch thin

full hdtv in color

price?
 
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