Kyushu University's presentation explains the technology behind TADF (Thermally Activated Delayed Fluorescent) emitters for highly-efficient OLEDs.
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An OLED uses organic semiconductors to create thin light emitting panels. OLEDs are used to create thin, beautiful, flexible and efficient display and lighting panels, and are the future technology of choice.
Taiwan's ITRI research institute developed a long-lasting OLED blue emitter. The researchers used a green phosphorescent emitter with a new double metal structure - that emits a blue light. The so-called Plasmon-Coupled Organic Light Emitting Diode (PCOLED) structure's lasts 27 times as long as a blue fluorescent emitter.
The researchers explain that a regular green phosphorescent emitter always emits a very weak emission. By using the double-metal structure, more plasmons are generated which means a larger blue emission. This is not an up-conversion process - but merely a change in conditions within the green material. This condition was actually discovered by accident.
Reports say Apple aims to adopt OLEDs in iPhones in 2018, in talks with suppliers to secure capacity
In the past few weeks I have read dozens of stories regarding Apple and their display choice for future iPhones. Some reports say that they aim to adopt OLEDs in their future iPhones starting in 2017, some say Apple decided to remain with LCDs... One thing for sure - the 2016 iPhones will use an LCD and not an OLED.
One of the major reasons for that is that Apple sells around 200 million iPhones in a year - and there's simply not enough OLED production capacity for that. New reports from Japan say that Apple does want to switch to OLEDs - and is in talks with suppliers to secure the capacity and increase the lifetime and performance of OLEDs.
Researchers from Oxford University developed a new technology based on phase-change materials (similar to ones used in re-writable DVDs) that can be used to create non-volatile highly-efficient displays - similar to E Ink displays. The University established a new company called Bodle Technologies to commercialize this new technology.
The phase-change materials can manipulate light and can be used to filter, steer or dim light using very little power. Bodle already demonstrated a sub-100 nm pixel size and a very rich color gamut - they say it exceeds "other display technologies", although it's not clear what they mean by that...
Taiwan's National Tsing-Hua University has been pursuing blue-light free OLED panels for a long time, developing orange-colored (1,914K) OLED panels which they claim is much healthier than regular OLEDs or LED devices.
In November 2014, we reported that Taiwan's PMOLED maker WiseChip Semiconductors licensed technology Tsing-Hua's technology, with an aim to produce such panels by early 2015. This did not happen, but today we hear that the Taiwanese government decided to fund WiseChip development - awarding the company with 10 million NTD (about $300,000 USD) each year for two years - and the Wisechip will be able to start mass producing those 1900K OLEDs.
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