Q: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
(Credit: LG) 
  
 Editors' note: This post was updated August 15, 2013, with new information. 
  
 By now you've probably heard about OLED, or organic light-emitting diodes. LG and Samsung both revealed potential models at this year's CES, with the LG winning CNET's Best of CES Award. 
  
  
  
 Make no mistake, this is the most important advancement in TV technology in more than a decade, and a vast improvement over both LCD and plasma. 
  
 Here's why. 
  
 The what 
  
 You only need red, green, and blue light to create a TV image. OLEDs work by putting electricity through certain materials that glow these specific colors. No other TV technology creates light directly like this. LCDs use color filters and light-blocking liquid crystals above a light-creating backlight. Plasmas use UV light created by igniting pockets of gas to excite red, green, and blue phosphors. 
  
 The why 
  
 What does this mean? Well, OLED TVs will be thinner, lighter, more efficient, and better-performing than any current television technology. Each pixel can be shut off, for an absolute black (no other tech can do this, save CRT), meaning an actual infinite contrast ratio, not just marketing hype. 
  
 For example, LG's 55-inch OLED unveiled at CES weighs 16.5 pounds and is about as deep as a pencil (3/16 of an inch). 
  
 It's hard not to be excited about OLED, as it ticks all the boxes of a dream television: incredible contrast, impossibly thin, extremely energy efficient. 
  
 LED vs. OLED 
  
 As we've discussed before, current televisions marketed as "LED TVs" aren't actually LED TVs. They're LCD TVs that use LEDs for the backlight. While LED LCDs are energy efficient compared with "regular" LCDs and plasmas, they're still not as energy efficient as OLED. As far as the difference between LEDs and OLEDs, the latter uses materials that include carbon ("organic") to create light when supplied a current. In an extremely oversimplified and generalized explanation, LEDs are like tiny light bulbs, while OLEDs are light-emitting areas or surfaces. 
  
 The only real "LED TV," as in a TV that used LEDs for the image itself, was Sony's Crystal LED prototype it showed at CES. If this technology moves past the prototype stage, we'll report on it more fully. 
  
 RGB OLED vs. 'white' OLED 
  
 The current OLED TV technology can be split in two camps: RGB OLED and "White" OLED. RGB OLED is similar to how plasma TVs work, with separate red, green, and blue OLED subpixels. 
  
 White OLED is rather different, and a bit confusing at first. Red, green, and blue OLED materials are sandwiched together. When powered, these create a white light. This white light passes through a color filter, to create the red, green, and blue subpixels. 
  
 It looks something like this: 
  
 This incredibly beautiful graphic, by me, shows a side view of LG's White OLED structure. The front of the TV screen is at the top, with the back of the TV at the bottom. (1) A sandwich of red, green, and blue OLED layers together produce white light (2). Color filters (3) allow a specific color through (4) toward the screen. A clear filter (right) allows the white light to pass through, increasing overall brightness. As shown, this pixel would appear white. Turn off the OLED behind the blue filter, and pixel would appear yellow. Turn off the OLED behind the blue and red filters, the pixel will appear green, and so on. (Credit: Geoffrey Morrison/CNET) 
  
 This image above represents one pixel. There are just over 2 million of these on each TV (1,920x1,080). There is an additional white subpixel in the LG design, which adds additional brightness, helping efficiency. 
  
 This seems weird, right? I mean, if you've got all three colors there already, why make white just to then turn it back into specific color? Well, it turns out White OLED has several benefits. There are some claims that this white sandwich has longer life and less chance of color shift versus separate R, G, and B OLEDs. LG wouldn't commit to a lifespan claim when I asked it directly, however, saying only that while "long-life testing is still under way, we believe our WOLED will perform quite well vis-»-vis other displays." 
  
 What they did say, and this is very important, is at this stage it's easier to manufacture. That means "cheaper." I'm in the camp that anything that gets OLED to market sooner is a good thing. 
  
 Lastly, and this could be where White OLED wins out: it's easier to scale to different screen sizes, which means bigger (or smaller) OLED TVs sooner. That also means it's easier to scale to 4K resolutions. I'm on record saying 4K TVs are stupid, but I admit it's inevitable. 
  
 I know some of you are thinking: "Blech, color filters!" What kind of LCD-esque step back is this horror hybrid? At first, I was in this camp as well, but the more I've researched, White OLED offers a lot of advantages, separate from the "pure performance" aspect. Could RGB OLED be slightly more efficient, or have slightly better performance? Maybe, but at this stage, it doesn't matter. If White is easier to make, that's the road we're on. 
  
  
  
 OLED needs to come to market before we can argue the potential benefits of one version of the technology over another. OLED, regardless of the specific flavor, is going to perform better, and be more energy efficient than any current television. 
  
 Inevitably, future versions of this technology will perform better. We can fixate on that pixel when we come to it. 
  
 AMOLED vs. OLED 
  
 Cell phones and other small portable devices often specify that their screens are "AMOLED" instead of just "OLED." The "AM" stands for "active matrix," which is how the screen is addressed by the electronics of the device. It is just a different way of running an OLED screen, one that's better for motion (like video). Each pixel can be addressed individually, which is what you want in a television. 
  
 Those of you with long memories will remember the days when LCD monitors were called TFT LCD or active-matrix LCD. You hardly ever see that clarification because every LCD you're now likely to come in contact with (either phones, tablets, TVs, etc.) is active matrix. Same idea here. OLED TVs will be some kind of active matrix. 
  
 The when 
  
 Like any new technology, OLED TVs will be expensive at first. LG's 55EA9800 is $14,999. Samsung's KN55S9C is $8,999. Don't forget it wasn't too long ago that big-screen LCDs and plasma were well beyond the means of us mere mortals. Let the 1-percenters buy these first-generation panels, driving down the cost for the rest of us. Within a few years of launch, expect to see OLEDs as a significant, but reasonable, step up over LED LCDs and plasmas. 
  
 In the meantime, you can check out what OLED looks like now. 
  
 In the future, OLED has few limitations on size or resolution. Wall-size OLED screens have been hypothesized. Flexible OLED, still many years off, fulfills the sci-fi promise of screens you can roll up like a magazine. 
  
 Excited yet? 
  
 Got a question for Geoff? Click "Geoffrey Morrison" below then click the "E-mail" link in the upper right to e-mail, wait for it...Geoffrey Morrison! If it's witty, amusing, and/or a good question, you may just see it in a post just like this one. No, I won't tell you what TV to buy. Yes, I'll probably truncate and/or clean up your e-mail. You can also send me a message on Twitter: @TechWriterGeoff. ||||| Curved-screen TVs are coming to the U.S. 
  
 Agence France-Presse/Getty Images 
  
 South Korean TV maker LG Electronics Inc. said Tuesday that it will begin selling its 55-inch curved-screen televisions starting today through Best Buy and will be taking pre-orders for two weeks. 
  
 At a whopping price of $14,999, it’s unclear whether there will be any demand for these next-generation TV sets, which promise vivid colors. Crosstown rival Samsung Electronics Co. also showcased similar TVs last month though they are only sold in South Korea. ||||| Earlier today we learned that Samsung's 55-inch curved OLED HDTV will soon be available in the US, priced at an eye-popping $14,999. Now it turns out LG has beaten its rival to the punch, though for the exact same lofty price. But whereas the Samsung TV will initially only be sold at a sole high-end electronics dealer, LG has a big box chain in its corner. Its OLED offering debuted today at Best Buy's flagship Magnolia home theater store in Richfield, Minnesota. And in the coming weeks, you'll be able to walk into stores in New York, Los Angeles, San Francisco, Chicago, Miami, Houston, and select other cities and take home your own curved set. 
  
 LG initially brought the ultra-premium 55-inch HDTV — which measures just 4.3 millimeters thick — to Korea last month. But by summer's end, the company says you'll be able to purchase the 55EA9800 at any Best Buy nationwide that contains a designated Magnolia shop. LG expects demand for OLED sets to hit 7 million by 2016. Still, consumers who can somehow justify such an extravagant purchase will need to decide whether "next-generation display technology" and that curved form are enough to steer them away from 4K (or perfectly good 1080p options) when the time to upgrade comes. |||||
A:
The newest whiz-bang TV will set you back a cool $15,000. South Korean companies LG and Samsung are selling 55-inch curved OLED televisions in the US, reports the Verge. LG is doing so via Best Buy (the rollout will gradually expand to stores across the US) and Samsung only through select dealers at first. The TVs are uber-thin and sleek-looking, and production is so tricky that prices aren't expected to come down anytime soon, reports the Wall Street Journal. OLED stands for "organic light-emitting-diode" technology, and CNET offers a primer on why this amounts to a "dream" TV: "incredible contrast, impossibly thin, extremely energy efficient." Just not very economical.