TADF OLED emitters, introduction and market status - Page 11

Hyperfluoresence TADF materials developer Kyulux announced that Dr. Chris Brown will join the company as VP of Products. Dr. Brown will lead Kyulux's product development and delivery efforts ahead of the company's anticipated first commercial deployments of TADF and Hyperfluorescence materials in the coming year.

Dr. Brown joins Kyulux from OLED inkjet equipment maker Kateeva, where he was Vice President of Process Engineering. Dr. Brown has been granted 31 US patents and has 34 publications.

Hyperfluoresence and TADF OLED emitter developer Kyulux and quantum-dot developer Nanoco announced that the two companies will co-develop a future-generation hybrid OLED / QLED display technology that combines Kyulux's hyperflourescent emitters and Nanoco's heavy metal free quantum dots (CDQDs).

Kyulux and Nanoco say that future displays based on this technology will have superior qualities compared to existing displays - high degree of brightness, energy efficiency, color purity and low cost.

Germany-based blue-TADF OLED emitter developer Cynora announced that it achieved a new performance record with its latest blue emitter material - which the company believes is the best overall performance of a high-efficiency blue emitter ever.

Cynora's new blue achieves a 15% EQE at 1000 cd/m² with an emission peak at 90 hours (at 700 cd/m²) on a device level. Cynora says that it is very confident that it can commercialize its first highly efficient blue emitter by the end of this year, as planned.

The following is a sponsored message by Kyulux

The SID Display Week, which will take place next week in Los Angeles, California, is one of the most important events in the display industry. This year's Display Week will provide an excellent chance to be updated on the latest advances by Kyulux, the Japan-based OLED TADF and Hyperfluoresence material developer.

Hyperfluorescence combines TADF and fluorescence to provide the ultimate OLED emission technology, and unlike phosphorescence, it enables full RGB color, 100% IQE and pure narrow spectrum color. Hyperfluorescence is set to replace existing emitter technologies by early 2020, and Kyulux aims to release its first commercial materials by 2018.

This is a sponsored post by Kyulux

The International TADF Workshop 2017 will take place in July 20-21, 2017, at Kyushu University, Fukuoka, Japan. The workshop, organized by Kyushu University and supported by Kyulux, aims to share the recent advances and future direction of TADF science and technologies.

This event will bring speakers from LG Display, Dow Chemical and dozens other from Universities all over the world. This is a free workshop (although there is a fee to attend the banquet). Kyushu is the "birthplace" of TADF technology and this should be an interesting and exciting event that will cover a wide gamut of cutting-edge research in TADF chemistry, devices, and applications.

The EU launched a new project called HyperOLED with an aim to develop materials and matching device architectures for high-performance, hyperfluorescence TADF OLED emitters. HyperOLED is coordinated by Merck, and the project partners include MicroOLED and the Fraunhofer IOF institute. This three years project received a €4 million grant from the EU.

These OLED emitters will be realized by combining TADF molecular hosts with novel shielded fluorescence emitters, targeting saturated blue emission of very high efficiency at high brightness. The project will also achieve efficiency gains through molecular alignment to enhance light outcoupling.

TADF are getting a lot of attention now, as a promising new emitter type that could finally enable efficient blue emission, and also efficient alternative to red and green phosphorescent emitters.

Several new TADF research papers have been announced by SID and will be presented at DisplayWeek 2017. Below you will find a list of these recent achievements, at no particular order.

Dr. Andreas Haldi was appointed as CYNORA's Chief Marketing Office in 2016. CYNORA develops efficient blue TADF OLED emitters, and Dr. Haldi was kind enough to participate in this interview and help us understand CYNORA's business and technology.

Q: Thank you Andreas for helping us understand CYNORA's business and technology better. CYNORA has set up on a focused mission to develop a commercial blue TADF emitter. What will you consider to be a market-ready material, in terms of lifetime, efficiency and color point?

For the last 5 years, CYNORA has worked on developing thermally activated delayed fluorescent (TADF) OLED emitters. End of 2015 we started to focus on efficient blue materials, which are still a key issue for OLED displays. Compared to the red and green pixels, the blue pixel is much less efficient. An increased efficiency of the blue pixel would therefore significantly reduce the power consumption of the display.

Germany-based TADF developer CYNORA, organizers of the First edition of the International TADF Symposium, was kind enough to offer a special 15% registration discount to OLED-Info readers .

The TADF Symposium aims to provide a professional forum for industry and academia experts, with a focus on TADF OLED materials R&D. Several lectures will discuss issues ranging from modeling through synthesis to analytics and device fabrication. The event will feature speakers from LG Display, Samsung Display, Sungkyunkwan University, TU Dresden, Durham University and more - and will take place on September 7, 2017 in Frankfurt, Germany.

Researchers from the Technical University in Dresden have developed a method to produce polymer TADF emitting molecules. Up until now most TADF materials are based on small molecules or chromophores linked to a polymer network.

This research focused on actual polymer TADF, and using a controlled extension of the conjugation of the monomers HOMO wavefunction, the researchers were able to to increase thephotoluminescence quantum yield from about 3% to about 71%. The reseachers say that this is an encouraging first step towards polymer TADF emitters.