Ason Technology show their MPE OLED lighting panels

Ason Technology was established in 2006 in Japan to develop OLED lighting technologies. The company finally unveiled their first OLED lighting panel during the FPD International 2013 exhibition last month.

Ason's panel use Multi-Photo-Emission (MPE), which is a stacked emitter architecture, which is also used by Lumiotec. Usually MPE panels use about 3 layers, but Ason managed to stack 10 or more emitting layers which enables them to reach a very high brightness and CRI. Ason also developed their own diffusion reflection layer so that the emitted color does not change even when viewed from different angles.

Read the full story Posted: Nov 13,2013

First-O-Light developed a 111.7 lm/W hybrid OLED device

Updated: This story had some inaccuracies and is now updated with new information from First-O-Lite


China's First-O-Lite says they developed an efficient (111.7 lm/W at 1,000 cd/m2) hybrid OLED lighting device (2 cm2). This is a hybrid device that uses a fluorescent blue emitter along with red and blue phosphorescent emitters. The company says that this is probably the most efficient hybrid OLED device ever produced that can meet the Energy Star color requirements.

First-O-Lite has established a volume production fab and will soon start producing OLED panels. These will feature over 55 lm/W (at 3,000 cd/m2) and will use the company's external light extraction technology.


Read the full story Posted: Nov 02,2013

On Cynora's copper-based TADF OLED emitters

Cynora is a German startup established in 2003 that developed copper-based OLED emitter systems. In October 2012 the company unveiled a mostly-solution-based flexible OLED prototype, developed in collaboration with InnovationLab. Last month Germany’s BMBF launched the cyCESH project which aims to develop soluble (printable) materials for low-cost high efficiency OLED lighting devices. Cynora is the leader of the consortium in this €6 million project, together with Novaled and the University of Regensburg.

Cynora's technology is interesting and the company's CEO Dr. Tobias Grab and the company's Business Development manager, Dr. Mathias Mydlak, were kind enough to provide the information for this article explaining the company's technology.

Read the full story Posted: Aug 02,2013

Kyushu University delayed fluorescence OLED emitters explained

In December 2012 we posted about Japan's Kyushu University new rare-metal free fluorescent OLED emitter materials that achieve 100% emission efficiency. Now the International Society for Optics and Photonics (SPIE) released a new video featuring Kyushu's professor Chihaya Adachi. Following a rather long introduction into his lab and his own biography, professor Adachi explains their thermally activated delayed fluorescence (TADF) technology (also called hyperfluorescence).

Adachi says that are seeking a commercialization partner, and they still need to study the degradation mechanism and expand the emission spectrum. Towards the end of this video you can view a couple of prototype monochrome (green) panels that use their new emitters.

Read the full story Posted: Apr 04,2013

iSupply - the S4 cost is estimated at $236, the 5" AMOLED costs $75

IHS iSuppi posted a "virtual teardown" for the upcoming Galaxy S4, saying that the bill of materials is about $236 (for the HSPA+ S4 with 16 gigabytes of NAND flash). According to iSuppli, the 5" Full-HD Super AMOLED display costs $75. As the 4.8" WXGA AMOLED on the S3 costs $65, this represents the largest cost increase for the S4 compared to its predecessor (The cost of making an S3 is estimated at $208). The cost of the AMOLED display is over 30% of the cost of the entire S4.

Other expensive components on the HSPA+ S4: the Exynos 5 processor at $30, memory (NAND + Flash) at $28, the two cameras at $20, the UI and sensor subsystem at $16 and the HSPA+ chip at $16. You can see the complete list on the table above, which includes also the S4 LTE and S3 Built-Of-Materials (BOM) estimates.

Read the full story Posted: Mar 20,2013

LG Chem OLED lighting update, plans 80 lm/W panels in July 2013

LG Chem sent us an update on their OLED lighting program, with some very exciting news. Besides planning flexible OLED lighting panels in July 2013 (I already posted about this earlier), LG says they have successfully developed high efficiency OLED lighting panels (80 lm/W, similar to CFLs) that will enter mass production in July 2013 (together with the flexible panels). These will be the world's most efficient OLED panels (beating LG Chem's current 60 lm/W panels).

The upcoming 80 lm/W will feature 20,000 hours lifetime (LT70), 3000K color temperature, brightness of 75 lumens (3000 cd/sqm) and a CRI of 85. The first 80 lm/W panels will be 100x100 mm in size and only 1.1 mm thick (thinner than LG's current panels which are 1.8mm thick). LG says that these panels will have a surface temperature of 26 degrees - roughly around room temperature (this is better than their current panels).

Read the full story Posted: Feb 13,2013

LG Chem plans to release the world's first flexible OLED lighting panels in July 2013

We've just got word from LG Chem that the company now plans to start mass producing the world's first flexible OLED lighting panels in July 2013 (and also high-efficiency 80 lm/W rigid panels). This is exciting news and if LG Chem will indeed go through with this plan it will be an important milestone for OLED lighting. Those OLED panels will be 200 x 50 mm in size and will feature 45 lm/W and a color temperature of 4,000K.

LG's flexible panels are only 0.33 mm thick and weigh under 8 grams - which not only allows new design possibilities but is also useful for energy saving for applications sensitive to weight (electric cars, airplanes, submarines, etc).

Read the full story Posted: Feb 13,2013

OSRAM reports advances in transparent OLED development, to start production in 2014

OSRAM is presenting a new luminaire (called the Rollercoaster) that features transparent OLED panels. OSRAM says that they have made some significant advances and they now plan to start series-production of such panels in 2014. 

The Rollercoaster looks like a glass and metal sculpture when turned-off and has a mobius-form (and so looks like a rollercoaster). It has 30 rectangular OLED panels, each with an active area of 18x6.5 cm. The OLEDs feature an efficiency of 20 lm /W and a transparency of 57% (which they say is the highest yet for such large panels. Fraunhofer's TABOLA transparent panels, which we reviewed back in April feature 45% transparency).

Read the full story Posted: Dec 13,2012

Japanese researchers create cheap, rare-metal free efficient OLED emitter materials

Update: Kyushu University published an interesting video with more details about this new technology

Researchers from Japan's Kyushu University developed new efficient rare-metal free OLED emitter materials based on dicyanobenzene derivatives. They say that these new materials (which they call hyperfluorescence) are as efficient as phosphorescent OLEDs, but are cheaper (about 1/10th of the cost) because they do not require rare metals.

The researchers say that they are now seeking to collaborate with Japanese makers to commercialize this technology "at an early date". They already created some display prototypes with the new materials (see photo above).

Read the full story Posted: Dec 13,2012

Lumiotec announces new high CRI OLED lighting panels, targets museums

Lumiotec announced new "natural white" OLED lighting panels (P06 panels) that feature the world's highest color rendering index (Ra93*1, a CRI of over 90). This is very close to natural light, and Lumiotec targets high-end retailers and museums. The panels come in five different sizes (up to 14.5x14.5 cm in size) and cost between ¥13,000 ($165) and ¥40,000 ($508).

The panels feature an efficiency of 28 lm/W, and Lumiotec told us that they use a hybrid design, comprising of both fluorescent and phosphorescent materials (provided by UDC). We do not know what is the exact mix. Lumiotec signed their license agreement with UDC back in April, and are already producing pure-phosphorescent panels, the P5, which feature 40 lm/W.

Read the full story Posted: Jul 19,2012