TADF OLED emitters, introduction and market status - Page 10
How will the phosphorescent emitter market look in 2018, following UDC's basic material patent expiration?
The phosphorescent OLED emitter market is currently dominated by Universal Display who owns the basic patents to phosphorescent OLED emitters. All the major OLED makers (including Samsung and LGD) are using UDC's materials in order to achieve higher display efficiencies, beyond what is available from fluorescent emitters.
Universal Display holds over 4,000 issued and pending patents, but some of its basic phosphorescent patents are set to expire by the end of 2017. Honestly, it is very difficult to know exactly what effect this will have on the market - some analysts believe that it will carry very little effect while others say that this will open the door for other companies to sell competing phosphorescent emitters.
Reports from Korea suggest LGD and SDC to invest 25 million Euro in Cynora
A report from the Korea Herald suggests that Samsung Display decided to invest â¬10 million in TADF developer Cynora, which follows LG Display's â¬15 million investment in the company. Both companies aim to secure access to next-generation emitter technology.
The Korean report actually states â¬100 million from SDC and â¬150 million from LGD - but this is surely a mistake as it's highly unlikely that Cynora could be raising such a huge sum of money at this stage. An earlier report from ETNews claimed LGD's investment totaled $9 million.
Cynora edges closer to a 460nm deep-blue TADF emitter
In May 2017 Cynora announced a new blue TADF emitters that achieves a 15% EQE at 1000 nits with an emission peak of 470 nm and a LT97 of > 90 hours (at 700 nits) on a device level. Cynora has stated several times that it aims to commercialize its first highly efficient blue TADF emitter by the end of this year.
According to Cynora, the performance requested from customers is an EQE (at 1000) of over 15%, a lifetime (LT97 at 700 nits) of over 100 hours and a wavelength of 460 nm (color purity FWHM 60 nm).
Wisechip shows its latest PMOLEDs at the TADF Workshop in Japan
Wisechip, the Taiwan-based PMOLED maker, demonstrated its latest display panels and prototypes at the TADF Workshop last week in Fukuoka, Japan. This was an impressive display and a great chance to experience the latest PMOLEDs displays from Wisechip.
So first up we have the company's transparent PMOLED. This is a 4.1" (106x37.9 mm) segmented T-OLED specifically aimed for automotive HUD applications. The display has 4 colors (red, orange, green and blue) and offers a typical brightness of 800 nits (max is 1,500 nits). According to Wisechip the display will soon hit the market for a specific automotive partner.
Reports suggest LGD and SDC to participate in Cynora's latest financing round
ETNews reports that Cynora is finalizing its latest financing round, with aims to raise â¬15 million. LG Display will participate in the round, investing $9 million, and Samsung Display is also considering a similar sized investment.
Cynora, based in Germany, is developing OLED emitters, and has recently announced its blue TADF OLED performance. 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.
Wisechip to commercialize Hyperfluorescence TADF PMOLEDs by year's end
Hyperfluoresence TADF materials developer Kyulux announced a collaboration with PMOLED maker WiseChip to bring Hyperfluoresence TADF emitter based displays to the market by year's end. Wisechip demonstrated an HF TADF display at the TADF Workshop last week in Fukuoka, Japan.
The PMOLED display shown by Wisechip was a 0.96" monochrome yellow 128x64 one. The demonstration showed how much brighter (or more efficient) the Hyperfluoresence based display is compared to Wisechip's current fluoresent-based displays. The power saving is almost 50%.
OLED-Info at the TADF Workshop in Kyushu University next week
Next week Kyushu University (in Fukuoka, Japan) will be hosting the 2nd International TADF Workshop. The event aims to share the recent advances and future direction of TADF science and technologies.
The OLED-Info team will attend this exciting workshop. The focus will be on academia oriented lectures, but the event will also include talks from the Dow Chemical Company, Japan Display, BOE Technology Group, Wisechip and TADF developer Kyulux who's sponsoring the event. The workshop will also include a small exhibition and poster sessions.
Researchers from Kyushu University design a new family of TADF emitters based on ESIPT
Researchers from Kyushu University's Center for Organic Photonics and Electronics Research (OPERA) developed a new TADF emitter molecule that is based on excited-state intramolecular proton transfer (ESIPT).
The researchers says that ESIPT can be used to design completely new TADF materials, which could enable researchers to achieve a high performance and long-lasting emitter structure, as a new material family may expand the molecule design possibilities. TADF from a ESIPT molecule has been reported previously - but the researchers say that this is the first demonstration of highly efficient TADF observed inside and outside of a device.
LG aims to adopt a blue TADF emitter in its 2018 OLED TV stack
Korean news site DDaily posted an interesting article that states that LG Display is looking to replace the fluorescent OLED emitter used in its OLED TVs with a blue TADF emitter.
Following the introduction into LG's OLED TV production process, LG hopes to also use TADF materials in its small and medium OLED production. The report is a bit confusing, but it seems that LGD also aims to use its WOLED display in small and medium display formats - even for VR applications.
Universal Display is developing TADF emitter and host materials
Universal Display was recently awarded a new patent (USPTO #20170186976) that describes high electroluminescent efficiency TADF OLED emitter and host materials based on benzotriazoles.
It is very interesting to see UDC developing TADF material. The company is focused on phosphorescent based OLEDs but, as they explain in the patent application, "phosphorescent materials generally contain a rare metal element such as Ir or Pt. These metals are rather expensive and are dependent on limited global resources". TADF could also be a viable route towards an efficient blue emitter (blue-emission is specifically mentioned in UDC's new patent).
Pagination
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