The Fraunhofer FEP, NSMAT and MSSMC developed an OLED on a stainless steel substrate

The Fraunhofer FEP institute, in collaboration with Nippon Steel & Sumikin Materials (NSMAT) and Nippon Steel & Sumitomo Metal Corporation (NSSMC), developed a new OLED lighting prototype that is made on a stainless steel substrate.

OLED on stainless steel prototype (Fraunhofer, NSMAT, NSSMC)

The researchers say that a stainless steel substrate has several advantages compared to glass or plastic - it has excellent thermal conductivity and excellent barrier properties. The lighting panel features an extremely homogenous OLED light, thanks to the planarization layer developed by NSSMC. The prototype panel was produced at the Fraunhofer's R2R research line.

The US DoE awards five new OLED project grants

The US Department of Energy announced 11 new solid state lighting projects grants, out of which five are related to OLED technologies (the rest are for new LED technologies).

OLED Devices Ascend OLED desk lamp photo

We already posted on two of these grants which were awarded to Pixelligent. In addition to Pixelligent, OLEDWorks were also awarded with two SBIR Phase 1 projects, one for an ultrathin, curved, high-efficiency OLED light engine that will reduce the cost OLED lighting and the second for the development of a novel substrate and encapsulation process.

The DoE grants two new SBIR OLED lighting projects

The US Department of Energy (DoE) announced new SBIR and STTR grants for solid state lighting projects. The DoE announced five new grants out of which two are related to OLED technologies.

Pixelligent Technologies were awarded an SBIR project titled "Light Extraction for OLED Lighting with 3-D Gradient Index". This project will explore the application of a novel and unique 3D gradient index (GRIN) layer to improve the efficiency and lifetime of OLED devices. Using such a unique structure, OLEDs could be produced that achieve the theoretical maximum extraction efficiency.

KAIST researchers develop an OLED device on a fabric substrate

Reserachers from Korea's KAIST institute developed a process to deposit OLED displays on textile substrates. The substrate uses fabrics made from several-micrometer-thick fibers. Using a planarization process the researchers created a fabric as flat as a piece of glass.

OLED device on a textile substrate (KAIST)

The OLED was deposited on this flat fabric using regular evaporation equipment. Using thin-film encapsulation, a lifetime of 1,000 hours was achieved. The textile OLED is much more flexible than a plasic based one, and may find uses in wearables. Of course the performance needs to be increased and this just a research project at this stage.

The Holst Centre demonstrate the world's first OLED on a ceramic substrate

The Holst Centre, in collaboration with US-based ultra-thin ceramics supplier ENrG have managed to produce a flexible OLED lighting panel on a 20-40 um thick ceramic substrate. The researchers at the Holst Centre say that a ceramic substrate offers an excellent barrier, is easy to handle and can withstand the high temperatures used in display backplane manufacturing processes.

OLED on Ceramics (Holst Centre 2016)

The Holst presented the 12 x 2.5 cm prototype OLED lighting panel that you see above. A ceramic substrate can withstand temperatures up to 1000 Celsius - and can be made partially transparent. This could prove to be an interesting alternative to plastic and metal substrates.

Chinese company shows a bendable phone "made from graphene"

A China-based company (maybe called Interim, it's not clear) has demonstrated a new fully-bendable smartphone. The company claims that this smartphone has a "graphene-based screen", 5.2" in size.

It's not clear what the meaning of a "graphene-based" display is, in this case. While graphene can theoretically be used to make light emitting devices, it's highly unlikely that this is the case here. My guess would be that this is a flexible OLED display (could also be a flexible LCD, but that's unlikely) with a graphene-based touch panel.

Samsung to use a hybrid glass-polymer in its upcoming foldable OLEDs

According to reports, Samsung is gearing up to introduce their first foldable OLED smartphone device by the end of 2016, as Samsung's mobile phone unit is under pressure to innovate and recapture its lost market share.

Transistors deposited on Solip Technology's Hybrimer

According to an interesting report from Korea, Samsung has been collaborating with a KAIST spin-off called Solip Technology that developed a foldable glass that will be used in Samsung's upcoming foldable OLEDs. Samsung is considering placing a strategic investment in Solip as this material is a key technology for Samsung.

Samsung Display now uses Corning's Lotus NXT glass for AMOLED substrates

Corning announced that Samsung Display adopted the company's Lotus NXT glass as its OLED panel substrate. The Lotus NXT glass was announced in June 2015, and Corning reveals that that Samsung already adopted those substrates for the Galaxy Note 5's 5.7" Quad-HD (2560x1440, 518PPI) Super AMOLED display. The Note 5 was released in August 2015.

Corning Louts NXT Glass photo

Lotus NXT improves the 2nd-gen XT glass (launched in May 2013) with lower total pitch variations. The new glass has improved stability, and better total pitch variation performance. According to Corning, this enables display makers to produce more efficient displays (up to 15% lower power consumption), or higher resolution displays (by up to 100 additional pixels per inch).

CPT to achieve flexible AMOLED mass production with aid from ITRI

Taiwan's Chunghwa Picture Tubes (CPT) signed an agreement with ITRI for a technology transfer for flexible AMOLED and touch panel integration (specifically ITRI's FlexUP flexible substrate technology - which is owned by FlexUp, encapsulation technology and flexible touch sensor technology).

FlexEnable / CPT flexible OTFT AMOLED prototype (June 2015)

CPT aims to use these technologies to achieve flexible OLED mass production "as soon as possible". Earlier today we posted that ITRI is set to demonstrate a 7" Full-HD foldable AMOLED prototype soon. ITRI and CPT has been cooperating on flexible OLEDs since 2012.