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OLED TVs: Technology Advancements Thread - Page 8

post #211 of 9428
So Ischroma, does this mean that OLED HDTV sets (when it launches after this decade) would be faster than all other display tech including CRT (not sure about Laser TV....but we'll see )???

Will it still hold the title as "SPEED KING" in the world of consumer display tech???
post #212 of 9428
Thread Starter 
That depends on how manufacturers choose to implement the driving circuitry. The OLED emitter itself has the capability to be as fast as the drive circuitry's designed to drive it. There is a price to pay in terms of lifetime, when using the impulse driving method. Manufacturers will decide whether that 'price' is worth the extra returns they may get by pricing the product higher.

The material cost to implement impulsive drive, apart from accelerated emitter aging, is very low. I'll be posting some schematics later which show how to achieve impulse driving using standard active-matrix scan circuitry, without the excessive complexity of other designs.
post #213 of 9428
Thread Starter 
Ah, the heat & humidity plus chores kept me away for a while, but on with the show!



The circuit above I drafted this morning, as a modification to the one posted previously. It allows the standard row-scanning on-PCB circuit to be adapted to impulse operation.

R1's value is chosen to drain C such that the voltage drop across Z keeps it in the breakdown region for the desired operation time. When the voltage across Z falls to breakdown, Z becomes nonconducting. The high-value (megohm) resistor R2 then pulls the base of TFT2 down, shutting it off and extinguishing OLED.

The circuit does not, at OLED, generate the ideal square-wave source. It does, however, suffice to provide sufficient impulsivity without the requirement for more transistors.

Transistor budget is at most three on mass-produced glass-photolith'd planes, due to defects. Even the single transistor behind LCD LCs is frequently defective, causing 'stuck' pixels. This is one reason why the previous design, while an excellent demonstration of good technique, will not be feasible in a mass-production scenario.

This circuit is a crude first approximation of something which can do the job. There are undoubtedly other implementations which perform better and stay within a three-transistor budget.
post #214 of 9428
Too late. OLED is surpassed by IOD (Iron Oxide Display).

Seriously, think of all the research being done on displays, especially over the last 10 to 15 years. Whatever displays are available 10 to 15 years from now, I'll bet they'll be very good, very light, very thin and very cheap.
post #215 of 9428
Thread Starter 
Your efforts are appreciated but there is a problem with your post, namely that it is off-topic. The topic of this thread is "OLED TVs: Technology Advancements Thread".

Your post has absolutely nothing to do with OLED TVs. If you feel this technology's applications warrant the attention of viewers, please start a new thread with a topic of the appropriate title.
post #216 of 9428
I don't agree, competing technologies are related to OLEDs simply because they are competitors. It is hardly off topic. If I was to talk about how awesome Oberweis's butter pecan ice cream is, that would be off topic. Also, to do so would be unethical because that flavor of ice cream has 26 grams of fat per cup. Unforgivable.

In this case, the "rusty" technology that Navychop has linked to is certainly NOT a replacement for OLEDs. It appears to be an inferior type of display, since it is limited to tiiiiiny sizes and also appears to lack the self-emissive quality that OLEDs possess, although I don't doubt it probably has some legitimate uses.
post #217 of 9428
Thread Starter 
There's plenty of room up one level, in the sub-forum where this thread exists. It is called:

"Flat Panel General & New FP Tech"

Note the "New FP Tech" part of the title. That means iron TVs, etc.

Now as for the off-topic post, it is not "hardly off topic" it is "completely off topic". The topic of this thread is not "new FP tech" or "OLED tech & other tech" or "OLED tech & iron TVs" it is "OLED tech". The "New FP Tech" is one level up from here, and that is where such posts belong. How is anyone going to know how great the new iron TVs will be if the post is hidden in the hole down here?
post #218 of 9428
I suspect that your explanatory post, recounting to us why navychop's post is off-topic, is itself off-topic and therefore mildly ironic.

People who are interested in OLED tech are HIGHLY LIKELY to be interested in competing/related technologies and therefore such technologies can legitimately be discussed in a thread that focuses on OLEDs. If he had wishes to discuss iron oxide Tvs, and failed to connect them to OLEDs as a potential competitor, then indeed he should post his comments to a new thread in FP General & New FP
post #219 of 9428
PS...does anyone want to bet on whether Sony will make good on their promise to mass manufacture 1000 11" OLEDs by the end of 2007? I personally doubt they will be able to, even though they keep assuring us they got the right stuff.

I think Samsung SDI's initiatives with small-size OLEDs are more promising, it will allow them to hone their manufacturing techniques to improve production yields, etc, which will finally allow OLEDs to become mainstream devices.
post #220 of 9428
Thread Starter 
Indeed, Samsung probably has the lead, especially considering how early they demonstrated their 40" OLED TV. Undoubtedly they will be one of the biggest players in the coming OLED market, starting with handhelds.

As for Sony, they seem to have some excellent tech and will probably be following closed behind.
post #221 of 9428
Note the use of the word "Seriously."

The point is that OLED, and any other technology, must move to market quickly. There are many other hounds nipping at their heels.
post #222 of 9428
Quote:
Originally Posted by Isochroma View Post

Thread Update (links go to original articles; see the end of my previous post for archived stories)

I'd appreciate it if you were to include a link to your previous post.
post #223 of 9428
Thread Starter 
I'd love to do it, but the pages generated by this forum only include anchors at the top of each post. So if I linked to the last post I made (which includes this story), the page would load it with the top showing. You'd still have to scroll all the way to the bottom of that post to see the last story. Maybe there's some way to add anchor code in posts, to allow linking to say the bottom of a post...

I'm considering posting stories individually with each update, then moving them to the archive-post on the next update. The idea has so far been to avoid fragmentation by putting all stories in one post, limited only by the 10-picture-per-post maximum.
post #224 of 9428
Quote:
Originally Posted by Isochroma View Post

I'd love to do it, but the pages generated by this forum only include anchors at the top of each post. So if I linked to the last post I made (which includes this story), the page would load it with the top showing. You'd still have to scroll all the way to the bottom of that post to see the last story.

That would be fine.

It would at least put you in the general area. As it is, I have just been clicking on your link to the original article and that is fine also, so no biggie.
post #225 of 9428
Thread Starter 
I'll probably start doing that with new items.
post #226 of 9428
Quote:
Originally Posted by navychop View Post

Too late. OLED is surpassed by IOD (Iron Oxide Display).

Unfortunately, this is just a small prototype. They would first need a big company to get them to recognition (unlike OLED which already has Sony and Samsung working hard in and releasing prototypes).

So atm, it hasn't surpassed OLED in terms of which tech will come out first.
post #227 of 9428
I told my professor about [OLED flat panels] since he worked in the industry with Philips in OLED development. He was explaining to me that there were people that made OLEDs out of peanut butter or bananas. Something edible. I showed him some articles taken from magazines about Sony at CES with their OLED display. I am seriously considering taking his lab in which we design and create a functioning OLED display. Cal Poly is really following through with their mission statement of "learn by doing." I will refer him to this link!
post #228 of 9428
According to the following report the first OLED from Sony will cost 7x the LCD equivalent.

http://techon.nikkeibp.co.jp/english...070725/136757/

"The company projected a cost of Sony's 11-inch organic EL panel will be around $700 (USD). That is equivalent to the cost of a 40-inch class LCD panel, while the costs of current 10-inch class LCD panels are about $100 per panel."
post #229 of 9428
Quote:
Originally Posted by hoodlum View Post

According to the following report the first OLED from Sony will cost 7x the LCD equivalent.

http://techon.nikkeibp.co.jp/english...070725/136757/

"The company projected a cost of Sony's 11-inch organic EL panel will be around $700 (USD). That is equivalent to the cost of a 40-inch class LCD panel, while the costs of current 10-inch class LCD panels are about $100 per panel."

Aww that sucks.

But this is still normal. Just like any first-gen technology, it will cost very high. I think this is expected.

Hopefully, there will be a reduction every year. Ie. If OLED costs 7x LCD price this year, then it should be 6x the LCD by next year. 5x the year after. 4x LCD by year 2010......and so on.........I hope.

Good thing though is that the more OLED TV tech matures (along with its price drops), the more it improves.

Prototype OLED TV tech is atm capable of around less than one millisecond or faster (<0.01 ms). By the end of this decade, I expect that the response time to be faster than that. Blue OLED lifetimes will also be capable of reaching the 60k hour holy grail lifespan and power consumption (currently at less than 100 watts) may even be improved slightly if manufacturers have nothing else to do.

With that said, I still believe that the future for OLED TV still looks bright as ever.
post #230 of 9428
What a waste of money, IMHO. The far superior company is Universal Display Corporation, they are the ones who own the IP for phosphorescent OLEDs....the tech that will be in displays by Sony, Samsung SDI, LG Philips LCD, LG electronics, Chi Mei, and other major manufacturers.
post #231 of 9428
I don't care if Satan owns it, just somebody bring it to market!
post #232 of 9428
Any new updates about OLED???
post #233 of 9428
Quote:
Originally Posted by navychop View Post

I don't care if Satan owns it,

post #234 of 9428
Hi i found a interesting article about the release of OLED-Tvs at:
release-of-oled-tvs
post #235 of 9428
Well that whole artical is just a rehash of the current standing of OLED, every thing thats been being said for the last 4 years.

If though there is a buyable unit on the retail shelf next year or even 09 then it's showing someone beleaves it will eventually be a big player and that it can compete in a price/features war eventually. I don't care if its here in 5 years I just don't want it to die off because of cost. I would buy a 1980 x 1200 computer display for over a $1,000 in a heartbeat if it looks like i beleave it will. I can see a path where it could start with graphic artist then move on to main stream retail.
post #236 of 9428
Same here.
post #237 of 9428
Thread Starter 
OLED Videos
▪ Sony Moves a Step Closer to OEL TV (11" & 27") [ Stream / AVI / MKV : 6.6 MB ]
▪ Epson 40" OLED Display [ MKV : 0.8 MB ]
▪ Wil Wheaton praises Sony's 1,000,000:1 Contrast OLED TVs [ Stream / AVI / MKV : 5.2 MB ]

lemaroc.org: OLED Videos
takatv.com: OLED Videos
post #238 of 9428
Quote:
Originally Posted by Isochroma View Post

Thread Update (links go to original articles; see the end of my previous post for archived stories):

28 August 2007: Cambridge Display Technology and Sumation Announce Further Improved Performance of Green and Red P-OLED Materials

That's superb news indeed.

Hopefully, there will be new announcements on lifespan improvement to Blue OLED materials within the year.

Can't wait for those to come out
post #239 of 9428
Only slightly off-topic:

Is it just me or is Wil Wheaton getting a lot of props & plugs in the geek news world these days? Dude's a has-been child sci-fi actor. We shouldn't be celebrating him, we should be ignoring him to the dustheap of society, just like Mark Hammil.

*sigh* the geek world's doomed when an aging Wesley Crusher's our idol...
post #240 of 9428
Blackraven, the news isn't particularly superb at all. Those improvements are to polymeric LED (POLED) materials, not PHOLEDs, which are the type of OLED that is currently expected to appear in OLED TVs. You should watch for news from Universal Display Corporation, they are the ones whose research is likely to usher in the age of OLED televisions. Currently, it is anyone's guess when long lasting blue PHOLED materials will be created. It requires a dramatic improvement over today's levels. In the meantime, blue fluourescent material can be substituted (that is what Sony, toshiba, Samsung) etc are doing. This has its own advantages and disadvantages.

Lexx, are you basically saying that the geek world should shun Wil Wheaton because he is basically a geek? Should we look for someone cooler?
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