OLED TVs: Technology Advancements Thread - Page 13

xrox: regarding your last point: all I'm saying is that OLED will be CAPABLE of this, while PDP and LCD are NOT. Whether interpolation is used, or a direct signal providing the true framerate, is another issue altogether. Don't lump them together into some kind of criticism of OLED, because they aren't.

And the one attribute which LCD has both PDP and OLED beat is lifetime. At least for now, LCD is the longest-lived display technology, and may be for the forseeable future. However, there is also a significant chance that OLED emitters will reach much longer lifetimes, even surpassing LCD's cold-cathode and maybe even equalling LED backlights.

"Your hatred for PDP goes pretty deep. What happened?"

xrox: the statement you quote references LCD as well as PDP, so don't be coming to any quick conclusions. I don't hate PDP, I hate flicker, and I can see it on all PDPs. I also hate dithering, and the low aperture ratio that makes PDPs look grainy up close, unlike LCDs.

Aside from its visual attributes, I also dislike its heavy weight, high power consumption, phosphor burn-in, high-voltage short-lived electronics, etc. They are all just more reasons that I will never support the PDP industry with a dollar of my money, and am enjoying watching it die as it is today.

You might think that I watch my display too close, but I'm just within the 30-degree FOV required for the 'immersion effect' (4' from my 32" LCD). Watching PDP from that distance is an annoyance too terrible for mere words, though I could try.

OLED will have a high aperture ratio and resolution, so it can be viewed up close to obtain the full immersion effect, without annoying pixel grain becoming evident, and without the flicker which becomes more visible in proportion to the brightness of the image and the closeness of the viewer.

Regarding the recent discussion of LCD and in particular PDP in this thread, I believe that it is important to contrast the fundamentals of PDP, LCD and OLED here to illustrate the areas where OLED's improvements will lead it to future market share.

It is vital to understand the attributes of OLED in comparison to its two competitors because its success in the marketplace is directly related to these differences.

I believe that OLED, if it succeeds, will do so by initially stealing market share from PDP, because it will emulate the positive attributes of PDP and omit the negative. Thus those who would have purchased PDP because of its motion rendering, black levels, or wide viewing angle, will instead buy OLED because of these and will get the additional benefits of light weight, longer life, better reliability, less motion blur, no dithering, higher efficiency, etc.

However, I would measure its true success as the percent marketshare that can be stolen from LCD, which is truly the Asian tiger of the display world.

Your impoliteness would warrant removal of your account from this forum, if I were an administrator. Thank you luck that I am not.

Regarding lifetime, that is still under development and is improving rapidly. There is no way to predict the future, but why are you insulting me for stating my opinion, which is allowed on this forum? There is every evidence that lifetimes will continue to increase; you are welcome to substantiate your views, but your last post contains not a drop of technical information, just opinion.

Also note, that none of my posts contain insults to other users; you would do well to emulate such behaviour if you plan on staying here much longer. If you don't care what I believe then don't respond; your response indicates you are threatened but doesn't contain anything that would help the forum community, thus it is detrimental.

I created this thread from pure vision, and will continue to maintain it; unlike SED, OLED is a shipping product. Regardless of its future, it will remain a topic covered by my family of technology and market threads.

I like rhymes, but do you see any personal insults in that quote? I don't. Perhaps you should re-read the forum rules:

3. Thou shalt remember that polite queries will elicit polite and helpful responses, likewise, that ranting and raving, bashing, and insults will prompt commensurate responses. Ye shall reap what ye sow. Using the phrase "Blah Blah Blah. Who care what you believe about what might happen." to refer to my opinions is a personal attack; rhymes about technology are not. Differing opinions are allowed on this forum, but not personal attack. Read the rules.

Now how about making your next post about some substantive issue related to the topic of this thread, OLED, which we can actually debate about? That would really help avert the attention of the moderators, who are probably starting to eye this thread.

If you disagree with any of my opinions, bring forward some evidence (do you have any?). We can chat all you like about the issues of OLED, but please leave the personal attacks behind.

While my like for OLED and dislike for PDP and certain aspects of LCD are personal, and my motivation for creating and posting in these threads is also personal, the content of my posts is directed at the technology and my opinions of it, not against other users.

This forum is not a place for people to fight each other, but rather a place where each person can bring out the best of what information they have, and their opinions regarding the thread topic. Thus a big collection of relevant information can be formed, and on-topic debates may generate from them. All to the advancement of general public education, among other results.

I don't need to 'defend' my 'crusade' because it is not contrary to any rules on the forum. My opinions regarding PDP or any other technology are not a personal attack, and are thus compliant with forum rules (and also my own set of values regarding how I post about stuff like this). I love rhymes, and will not hesitate to express my opinion of various technologies using them. That is my right on this forum, as it is yours also. However you do it, this forum is about discussing technology, both fact and opinion. It is not, however, a place to attack other users for their opinions.

In order to maintain the coherency of this thread I will only be responding to on-topic questions from you and others. If you wish to continue with non-topical discussion, you are welcome to use the private message system to discuss with me; it was created for this purpose, among others.

Saint-Gobain and Novaled announce a breakthrough in glass substrates for OLED
11 January 2008

Saint-Gobain and Novaled have demonstrated the feasibility of large area OLEDs, based on a new high-performance metallic anode, with Saint-Gobain Recherche technology and Novaled OLED proprietary developments.

The goal of a two-year research cooperation programme between both partners has been to develop basic technologies for high-performance white OLEDs. Researchers at Saint-Gobain Recherche (SGR) have created a highly conductive transparent electrode “Silverduct™”, bringing up to 10 times better surface conductivity than traditional ITO (Indium Tin Oxide). Thanks to Novaled PIN OLED™ technology for high efficiency OLEDs, samples were successfully manufactured on large area surfaces. SGR and Novaled now see the possibility to produce homogeneous OLED devices up to 100 cm² which will ease the manufacturing of large OLED lighting products.

Traditional ITO coated glass impedes the race to large area OLED, due to its limited ability to carry current over distances longer than a couple of centimetres. Therefore, for large area OLEDs, the ITO layer must be topped with a thick metallic grid to prevent gradient of light emission caused by the sheet resistance of ITO alone (typically 30 Ohm/sq). The new anode Silverduct™ has a sheet resistance of less than 4 Ohm/sq, thus enabling large area OLEDs without additional metal grids. This is an important step especially for transparent and bottom emission OLEDs in which the metal grid is visible. Additionally, by eliminating the metal grid Silverduct™ offers significant potential for reducing manufacturing costs.

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Sony said to be seeking strategic partners to produce and sell OLED panels
23 January 2008

In order to expand the OLED TV market, Sony, which released the world's first OLED TV last year, is looking for strategic partners to cooperate in the production and sales of OLED panels, according to a Chinese-language Commercial Times report.

The report also cited Taiwan-based Topology Research Institute (TRI) as saying shipments of OLED TVs will rise from nearly 4,000 units in 2007 to 3.75 million units in 2012. While Digitimes Research recently estimated that shipments of OLED TVs will grow from 2,000 units in 2007 to 18,000 units in 2008, while further shooting up to 50,000 units in 2009 and 120,000 units in 2010.

During the recently completed CES 2008 show in Las Vegas, Samsung Electronics also showcased two (14.1-and 31-inch) OLED TV models, with the company stating it will begin commercial production of mid- to large-sized OLED TVs around 2010.

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OLED-T green OLED emitter offers world class efficiency performance
25 January 2008

OLED-T, a developer and manufacturer of world-class organic light emitting diode (OLED) materials and device structures, today announced a green phosphorescent OLED material with world class efficiency performance.

The new material called E255a has a high colour saturation making it ideal for a broad range of product applications in single colour and full colour displays. The material also has a very high efficiency delivering high brightness at low power making it ideal for mobile product applications with either passive matrix or active matrix driving.

OLED-T has already established a world class materials and technology portfolio in the charge injection, transportation and host areas and the new material expands this line-up into the emitter area. OLED-T is also developing phosphorescent red and fluorescent blue materials in order to offer manufacturers a single source of all the materials required to manufacture an OLED display.

“OLED-T is well positioned to take advantage of the growing market of OLED displays through its portfolio of materials for OLED displays. The new green material exceeds the requirements for consumer applications. These performance results are impressive and a tribute to the research and development team at OLED-T,” said Myrddin Jones, CEO, OLED-T..

“The combination of high efficiency and high colour saturation are very hard to achieve and they firmly position the company as a world-class provider of materials for OLED displays,” added Jones.said Myrddin Jones, CEO, OLED-T.

The University of Hong Kong has manufactured OLED demonstrators using E255a and has reported a device efficiency of 40 cd/A at 1000 cdm-2 with a very saturated green colour coordinate of (0.28, 0.64) which is wider than commercially available LCD products.

OLED is developing into an important market for the display industry as well as the chemical industry. Materials are estimated to make-up 20 per cent of the value of the OLED supply chain.

The worldwide flat panel display market was worth $70 billion in 2006 and is forecast to rise to $100 billion by 2010 according to display industry analysts. OLED is the fastest growing non-LCD display technology and by 2010 it is predicted that the sector will be worth more than $2.5 billion.

E225a will be available for customer sampling from January 2008 and can be deposited onto any desired substrate by vacuum coating methods.

I agree; the discussion should be limited to OLED. Off-topic discussion can be done in other threads or via Private Message.

That will depend on the implementation, but at minimum you can expect something far superior to the feeble whites on PDP, whose market (if it succeeds) OLED will consume first. Here's what we have and what's coming in the near future:

Sony develops little'n'large OLED TV panels

"Its all-white brightness is 200cdm², peaking at more than 600cdm²" Dai Nippon Printing to commercialize OLEDs for sign displays in 2008

"Jointly with a research institute, the Japanese vendor plans to develop technology to extend the lifespan of panels by ten times that of conventional products to 10,000 hours, with a brightness at 1,000 cd/m2, the company said." Previous stories posted in this thread contain more data on individual emitters.

I'm comparing the brightness characteristic of OLED to PDP, nothing more. Interest has been expressed in the brightness attribute; other than comparison with existing technologies and posting some know values, how else can I help form an image of what it will look like?

Regarding brightness, OLED may or may not be brighter than LCD is now or at the time of its deployment, but will far exceed that of today's PDP and likely tomorrow's too, for some specific technical reasons.

Comparisons between OLED and other technologies are relevant, as I have said before in this thread. The differences between OLED and LCD/PDP are the key to its future success or failure, as they will differentiate it in future markets and provide value to offset its initially higher expected cost. Thus a close examination of these differences will provide much insight into future market prospects.

The personal attacks were the primary target of my previous comments regarding off-topic posts. This is a forum to post both facts and opinions, but not to fight with other users over personal preferences, which are all different. It is not my place to question your display preferences, as your situation is different than mine.

Rather, the technical and financial aspects covered in posts on this thread highlight the bigger world picture, and at the same time inform visitors with timely news as well as providing a space for opinion. Perhaps we can hear your opinion regarding the last poster's brightness question. The more people speak up with topical questions/comments/notes/stories, the better this thread can become.

Thanks!

Though I believe OLED will exceed PDP in almost every quality measure, I am concerned about one which PDP may be superior to OLED in: differential RGB ageing, in particular the rapid decline in blue OLED brightness relative to red and green.

PDP's RGB phosphors don't age exactly in sync and neither do CRT's, but they sync far closer than OLED's, thus less color shift is observed over the display's lifetime. The future of OLED emitters is unwritten, but at present differential ageing must be considered a negative relative to PDP, LCD and CRT.

Sony 27-inch OLED TV Prototype
10 January 2008




[CES 2008] The 11-inch OLED TV is the first commercial OLED TV and it looks great in pictures, but it is simply too small to be really interesting in a home. This 27” OLED TV prototype is much more compelling and I can tell you that the image quality is nothing short of formidable. We are a couple of years from large OLED displays, according to industry insiders and we cannot wait to get our hands on one.