Category Archives: OLEDs

The recent restructuring by major global lighting companies will allow LED makers to raise capital for investments in 2015. According to “Top Lighting and LEDs Trends for 2015,” a new white paper issued by the IHS, last year’s restructuring could lead to improved margins for leading companies, along with the potential for lower product prices for consumers.

“For the big three lighting suppliers, the road was bumpy: all of them recorded falling revenue in the first three quarters of 2014,” said William Rhodes, research manager of lighting and LEDs at IHS Technology. “Industry watchers are now looking to see if these giants of the lighting industry can turn the tide in 2015.”

Following are 10 predictions for the lighting and LED industry for 2015, from the IHS technology research team:

1. China—the LED dragon—will continue to grow. The coming year could be pivotal for the global LED industry, given the growing market share of Chinese LED companies throughout the value chain. “In order to compete with international companies and maintain their growth, Chinese vendors must overcome negative perceptions of product quality that continue to plague them, even while they maintain their low pricing,” Rhodes said.

2. The sky is the limit for cloud-based smart lighting. The market for cloud-based smart lighting is unlikely to gain market share in 2015, because public knowledge of companies offering solutions remains limited; however, increased marketing of cloud-based smart lighting could gain mindshare in 2015, positioning the market for future growth.

3. Changing fortunes for lighting companies expected in 2015. The reorganization of the top three lighting manufacturers could turn them into pure-play lighting companies focused on dynamic markets, which would offer greater growth potential. The restructuring will also allow LED makers to raise capital for further investment, and will also let them reduce the hierarchal burden associated with being part of a large conglomerate. “Changes in the corporate structure, could lead to improved margins for the companies, and possibly lower-priced products for consumers,” Rhodes said.

4. Li-Fi, a brighter way to communicate. Visual light communication (LI-Fi) is a new and emerging technology, but implementations of pilot projects, along with greater media interest, is forecast for 2015. “It will be interesting to see how many commercial projects are announced this year, and on what scale,” Rhodes said.

5. Is lighting poised for a quantum leap? As quantum-dot LEDs (QD-LEDs) still have some challenges to overcome, the market will not likely to see vast quantities of commercially available products by 2015 or 2016; however, in the medium to longer term, QD-LEDs could kill off the OLED display market and cause deep disruption to the lighting industry as a whole.”QD-LEDs still have some challenges to overcome, but we might see a very small amount of commercially available products by the end of 2015,” Rhodes said.

6. OLED luminaires, and where to purchase them. Mass-market adoption of OLED lighting is not projected to occur in 2015, but retailers will likely start to offer a premium range of OLED luminaires, which undoubtedly will help create more interest in the overall OLED market in the coming year.

7. LED filament bulbs: incandescent beauty with an LED twist. LED filament lamps, which combine the benefits of LED lamps with the familiar design of incandescent bulbs beloved by traditionalists, are now starting to match other LED offerings, in terms of efficiency, price and color-rendering capabilities. “Ultimately it will be up to consumers to decide if filament bulbs will have their time in the limelight in 2015,” Rhodes said.

8. Packaged LED industry is moving downstream and getting smarter. Smart lighting is another way for companies to attempt to add value and improve profit margins. As the LED lighting market moves downstream with modules and light engines, incorporating smart lighting sensors and controls will be a key trend in 2015.

9. Is your streetlight all that it seems? In the coming year, a couple of smart street lighting pilot projects (e.g., incorporating electric vehicle charging or mobile phone masts into the luminaires) are expected to start moving to larger city-wide installations. “with developments in new technology, as well as the ever-expanding phenomenon of the Internet of Things (IoT), the role that street lights play in our world is set change completely,” Rhodes said.

10. Automotive applications driving optoelectronic components market. With LED headlamp penetration increasing, gesture control getting increasing interest, and hybrid and electric vehicles sales continuing to grow; 2015 will be a lucrative year for the optoelectronic components suppliers who focus on the automotive industry.

Scientists at UCL, in collaboration with groups at the University of Bath and the Daresbury Laboratory, have uncovered the mystery of why blue light-emitting diodes (LEDs) are so difficult to make, by revealing the complex properties of their main component – gallium nitride – using sophisticated computer simulations.

Blue LEDs were first commercialised two decades ago and have been instrumental in the development of new forms of energy saving lighting, earning their inventors the 2014 Nobel Prize in Physics. Light emitting diodes are made of two layers of semiconducting materials (insulating materials which can be made conduct electricity in special circumstances). One has mobile negative charges, or electrons, available for conduction, and the other positive charges, or holes. When a voltage is applied, an electron and a hole can meet at the junction between the two, and a photon (light particle) is emitted.

The desired properties of a semiconductor layer are achieved by growing a crystalline film of a particular material and adding small quantities of an ‘impurity’ element, which has more or fewer electrons taking part in the chemical bonding (a process known as ‘doping’). Depending on the number of electrons, these impurities donate an extra positive or negative mobile charge to the material.

The key ingredient for blue LEDs is gallium nitride, a robust material with a large energy separation, or ‘gap’, between electrons and holes – this gap is crucial in tuning the energy of the emitted photons to produce blue light. But while doping to donate mobile negative charges in the substance proved to be easy, donating positive charges failed completely. The breakthrough, which won the Nobel Prize, required doping it with surprisingly large amounts of magnesium.

“While blue LEDs have now been manufactured for over a decade,” says John Buckeridge (UCL Chemistry), lead author of the study, “there has always been a gap in our understanding of how they actually work, and this is where our study comes in. Naïvely, based on what is seen in other common semiconductors such as silicon, you would expect each magnesium atom added to the crystal to donate one hole. But in fact, to donate a single mobile hole in gallium nitride, at least a hundred atoms of magnesium have to be added. It’s technically extremely difficult to manufacture gallium nitride crystals with so much magnesium in them, not to mention that it’s been frustrating for scientists not to understand what the problem was.”

The team’s study, published today in the journal Physical Review Letters, unveils the root of the problem by examining the unusual behaviour of doped gallium nitride at the atomic level using highly sophisticated computer simulations.

“To make an accurate simulation of a defect in a semiconductor such as an impurity, we need the accuracy you get from a quantum mechanical model,” explains David Scanlon (UCL Chemistry), a co-author of the paper. “Such models have been widely applied to the study of perfect crystals, where a small group of atoms form a repeating pattern. Introducing a defect that breaks the pattern presents a conundrum, which required the UK’s largest supercomputer to solve. Indeed, calculations on very large numbers of atoms were therefore necessary but would be prohibitively expensive to treat the system on a purely quantum-mechanical level.”

The team’s solution was to apply an approach pioneered in another piece of Nobel Prize winning research: hybrid quantum and molecular modelling, the subject of 2013’s Nobel Prize in Chemistry. In these models, different parts of a complex chemical system are simulated with different levels of theory.

“The simulation tells us that when you add a magnesium atom, it replaces a gallium atom but does not donate the positive charge to the material, instead keeping it to itself,” says Richard Catlow (UCL Chemistry), one of the study’s co-authors. “In fact, to provide enough energy to release the charge will require heating the material beyond its melting point. Even if it were released, it would knock an atom of nitrogen out of the crystal, and get trapped anyway in the resulting vacancy. Our simulation shows that the behaviour of the semiconductor is much more complex than previously imagined, and finally explains why we need so much magnesium to make blue LEDs successfully.”

The simulations crucially fit a complete set of previously unexplained experimental results involving the behaviour of gallium nitride. Aron Walsh (Bath Chemistry) says “We are now looking forward to the investigations into heavily defective GaN, and alternative doping strategies to improve the efficiency of solid-state lighting”.

Pixelligent Technologies, producer of PixClear, nanocrystal dispersions for demanding applications in the Solid State Lighting and Optical Coatings & Films markets, announced today that it closed $5.5 million in new equity funding. The funds will be used to support its accelerating customer growth in Asia, the EU and the U.S., and also to hire application engineers, product managers, manufacturing engineers, and staff scientists.

“During the past 12 months Pixelligent has seen a tremendous increase in demand for its nanocrystal dispersions, predominantly driven by the leading LED package manufacturers and the emerging OLED panel makers. Pixelligent’s high-index and transparent nanocrystals are becoming increasingly important in delivering more lumens per watt while also delivering cost efficiencies. This demand is coming from LED and OLED customers around the globe with the fastest growth being realized in Asia,” commented Craig Bandes, President & CEO, Pixelligent Technologies.

To support the growth coming out of the Asian market, Pixelligent appointed distributors and agents throughout Asia in 2014 and expects to do the same in the EU in 2015. Part of the proceeds from this round are being used to support the global expansion of Pixelligent’s marketing and distribution footprint.

This round included support from both a number of new family offices and existing investors. To date, Pixelligent has raised more than $23.0M in equity funding and has been awarded more than $10.0M in U.S. government grant programs.

Physicists at the University of Kansas have fabricated an innovative substance from two different atomic sheets that interlock much like Lego toy bricks. The researchers said the new material — made of a layer of graphene and a layer of tungsten disulfide — could be used in solar cells and flexible electronics. Their findings are published today by Nature Communications.

Hsin-Ying Chiu, assistant professor of physics and astronomy, and graduate student Matt Bellus fabricated the new material using “layer-by-layer assembly” as a versatile bottom-up nanofabrication technique. Then, Jiaqi He, a visiting student from China, and Nardeep Kumar, a graduate student who now has moved to Intel Corp., investigated how electrons move between the two layers through ultrafast laser spectroscopy in KU’s Ultrafast Laser Lab, supervised by Hui Zhao, associate professor of physics and astronomy.

 “To build artificial materials with synergistic functionality has been a long journey of discovery,” Chiu said. “A new class of materials, made of the layered materials, has attracted extensive attention ever since the rapid development of graphene technology. One of the most promising aspects of this research is the potential to devise next-generation materials via atomic layer-level control over its electronic structure.”

According to the researchers, the approach is to design synergistic materials by combining two single-atom thick sheets, for example, acting as a photovoltaic cell as well as a light-emitting diode, converting energy between electricity and radiation. However, combining layers of atomically thin material is a thorny task that has flummoxed researchers for years.

“A big challenge of this approach is that, most materials don’t connect together because of their different atomic arrangements at the interface — the arrangement of the atoms cannot follow the two different sets of rules at the same time,” Chiu said. “This is like playing with Legos of different sizes made by different manufacturers. As a consequence, new materials can only be made from materials with very similar atomic arrangements, which often have similar properties, too. Even then, arrangement of atoms at the interface is irregular, which often results in poor qualities.”

Layered materials such as those developed by the KU researchers provide a solution for this problem. Unlike conventional materials formed by atoms that are strongly bound in all directions, the new material features two layers where each atomic sheet is composed of atoms bound strongly with their neighbors — but the two atomic sheets are themselves only weakly linked to each other by the so-called van der Waals force, the same attractive phenomenon between molecules that allows geckos to stick to walls and ceilings.

“There exist about 100 different types of layered crystals — graphite is a well-known example,” Bellus said. “Because of the weak interlayer connection, one can choose any two types of atomic sheets and put one on top of the other without any problem. It’s like playing Legos with a flat bottom. There is no restriction. This approach can potentially product a large number of new materials with combined novel properties and transform the material science.”

Chiu and Bellus created the new carbon and tungsten disulfide material with the aim of developing novel materials for efficient solar cells. The single sheet of carbon atoms, known as graphene, excels at moving electrons around, while a single-layer of tungsten disulfide atoms is good at absorbing sunlight and converting it to electricity. By combining the two, this innovative material can potentially perform both tasks well.

The team used scotch tape to lift a single layer of tungsten disulfide atoms from a crystal and apply it to a silicon substrate. Next, they used the same procedure to remove a single layer of carbon atoms from a graphite crystal. With a microscope, they precisely laid the graphene on top of the tungsten disulfide layer. To remove any glue between the two atomic layers that are unintentionally introduced during the process, the material was heated at about 500 degrees Fahrenheit for a half-hour. This allowed the force between the two layers to squeeze out the glue, resulting in a sample of two atomically thin layers with a clean interface.

Doctoral students He and Kumar tested the new material in KU’s Ultrafast Laser Lab. The researchers used a laser pulse to excite the tungsten disulfide layer.

“We found that nearly 100 percent of the electrons that absorbed the energy from the laser pulse move from tungsten disulfide to graphene within one picosecond, or one-millionth of one-millionth second,” Zhao said. “This proves that the new material indeed combines the good properties of each component layer.”

The research groups led by Chiu and Zhao are trying to apply this Lego approach to other materials. For example, by combining two materials that absorb light of different colors, they can make materials that react to diverse parts of the solar spectrum.

The National Science Foundation funded this work.

The U.S. Patent Office has issued US Patent No. 8,859,310 to Versatilis LLC that shows how fine semiconductor particles, powders or fines, often the waste byproduct of dicing semiconductor wafers into ever smaller chips, can be processed into a sea of low cost solar cells or micro-LEDs.

A principal challenge in making such devices has always been forming the active layer, whether the light absorbing layer in a solar cell or the light-emitting layer in a LED. This has also been the most costly and capital-intensive part of the manufacturing process, since the active layer must be made to high standards of semiconductor crystal quality and uniformity. Leading solar cells, for example, use mono- or poly-crystalline silicon wafers, while LEDs use variants of Gallium Nitride (GaN) on expensive sapphire, Silicon Carbide or even GaN wafers. In many cases, these materials are thicker than needed, the added thickness lending structural support to the end device without adding to efficiency, but contributing to overall cost and weight of the structure.

Versatilis shows instead that the active layer can be made from semiconductor fines or powders of single crystal particles densely packed into a monolayer, in a configuration not unlike sandpaper one particle thick, and then further processed into active diode structures serving as solar cells, for example, or as LEDs. Such particles are readily available, often a byproduct of other processes or made inexpensively off-line, or sometimes chemically synthesized. Silicon fines, for example, are widely available, screened for a desired size distribution, as are CIGS and GaN particles, the latter chemically synthesized. And a small amount of such “dust” can go a long way; for example, a kilogram of one micron single crystal CIGS particles used as micro-solar cells can cover an area over 300 square meters, resulting in very low costs per unit area.

“By levering cheap, ex-situ produced and optimized, single or polycrystalline powders and fines for Si, Ge, CIGS, GaN, ZnO as the starting raw material and wrapping unique processing techniques around that, we can produce highly functional opto-electronic devices with reduced infrastructure, processing, and material utilization cost,” stated Ajay Jain, Versatilis CTO and inventor of the now patented technology.

The potential cost savings have led others to try using semiconductor particles in a variety of ways, however, none have proven commercially practical. A major challenge has been to lay down these particles quickly enough and as a monolayer. Similarly, researchers have shown basic functional devices with nanorods, nanowires and other semiconductor “nanostructures” in the lab, only to be stopped by a general lack of production ready manufacturing technology for nanoscale, including suitable tools for in-line process metrology and characterization.

In addition to processing semiconductor particles into useful devices, Versatilis has unique fluidics technology for rapidly depositing such particles as a monolayer, from nano to microscale, on wafers or in a continuous, high-speed web. It had licensed the technology to VersufleX Technologies (http://www.versuflex.com), who are beginning to sell benchtop process tools to R&D labs based on this technology. The process can tolerate reasonable variation in particle size and shape, and there are a variety of methods possible for orienting particles floating on the surface of a fluid medium.

“This technology will not set performance records for efficiency in PV cells nor in lumens/watt for LEDs, but we believe there is no cheaper, more practical way to realize semiconductor diode based functionality over a large, flexible area,” added George Powch, Company CEO, “We think it can enable low cost Building Integrated Photovoltaics or rival OLEDs with a wholly inorganic large area micro-LED solution.”

Even as the 2014 Nobel Prize in Physics has enshrined light emitting diodes (LEDs) as the single most significant and disruptive energy-efficient lighting solution of today, scientists around the world continue unabated to search for the even-better-bulbs of tomorrow.

Enter carbon electronics.

Electronics based on carbon, especially carbon nanotubes (CNTs), are emerging as successors to silicon for making semiconductor materials. And they may enable a new generation of brighter, low-power, low-cost lighting devices that could challenge the dominance of light-emitting diodes (LEDs) in the future and help meet society’s ever-escalating demand for greener bulbs.

Scientists from Tohoku University in Japan have developed a new type of energy-efficient flat light source based on carbon nanotubes with very low power consumption of around 0.1 Watt for every hour’s operation–about a hundred times lower than that of an LED.

In the journal Review of Scientific Instruments, from AIP publishing, the researchers detail the fabrication and optimization of the device, which is based on a phosphor screen and single-walled carbon nanotubes as electrodes in a diode structure. You can think of it as a field of tungsten filaments shrunk to microscopic proportions.

They assembled the device from a mixture liquid containing highly crystalline single-walled carbon nanotubes dispersed in an organic solvent mixed with a soap-like chemical known as a surfactant. Then, they “painted” the mixture onto the positive electrode or cathode, and scratched the surface with sandpaper to form a light panel capable of producing a large, stable and homogenous emission current with low energy consumption.

“Our simple ‘diode’ panel could obtain high brightness efficiency of 60 Lumen per Watt, which holds excellent potential for a lighting device with low power consumption,” said Norihiro Shimoi, the lead researcher and an associate professor of environmental studies at the Tohoku University.

Brightness efficiency tells people how much light is being produced by a lighting source when consuming a unit amount of electric power, which is an important index to compare the energy-efficiency of different lighting devices, Shimoi said. For instance, LEDs can produce 100s Lumen per Watt and OLEDs (organic LEDs) around 40.

Although the device has a diode-like structure, its light-emitting system is not based on a diode system, which are made from layers of semiconductors, materials that act like a cross between a conductor and an insulator, the electrical properties of which can be controlled with the addition of impurities called dopants.

The new devices have luminescence systems that function more like cathode ray tubes, with carbon nanotubes acting as cathodes, and a phosphor screen in a vacuum cavity acting as the anode. Under a strong electric field, the cathode emits tight, high-speed beams of electrons through its sharp nanotube tips — a phenomenon called field emission. The electrons then fly through the vacuum in the cavity, and hit the phosphor screen into glowing.

“We have found that a cathode with highly crystalline single-walled carbon nanotubes and an anode with the improved phosphor screen in our diode structure obtained no flicker field emission current and good brightness homogeneity,” Shimoi said.

Caption: This image shows a planar light source device from the front. Credit: N.Shimoi/Tohoku University

Caption: This image shows a planar light source device from the front. Credit: N.Shimoi/Tohoku University

Field emission electron sources catch scientists’ attention due to its ability to provide intense electron beams that are about a thousand times denser than conventional thermionic cathode (like filaments in an incandescent light bulb). That means field emission sources require much less power to operate and produce a much more directional and easily controllable stream of electrons.

In recent years, carbon nanotubes have emerged as a promising material of electron field emitters, owing to their nano-scale needle shape and extraordinary properties of chemical stability, thermal conductivity and mechanical strength.

Highly crystalline single-walled carbon nanotubes (HCSWCNT) have nearly zero defects in the carbon network on the surface, Shimoi explained. “The resistance of cathode electrode with highly crystalline single-walled carbon nanotube is very low. Thus, the new flat-panel device has smaller energy loss compared with other current lighting devices, which can be used to make energy-efficient cathodes that with low power consumption.”

“Many researchers have attempted to construct light sources with carbon nanotubes as field emitter,” Shimoi said. “But nobody has developed an equivalent and simpler lighting device.”

Considering the major step for device manufacture–the wet coating process is a low-cost but stable process to fabricate large-area and uniformly thin films, the flat-plane emission device has the potential to provide a new approach to lighting in people’s life style and reduce carbon dioxide emissions on the earth, Shimoi said.

Wearable electronics are going from geek to chic, as new smartwatches from the likes of Apple and Samsung have set a new standard for technological bling.

At IFA 2014 in Berlin last month, the European consumer electronics show highlighted new smartwatches meant to entice consumers with more fashion-forward designs. Smartwatch makers hope to eventually legitimize wearable products as a category by improving their usability, and the secret sauce in this effort is an upgrade in design centered on the use of flexible displays. 

The display panel market for all types of wearable electronic items is forecast to enjoy very rapid growth in the years to come. From a projected $300 million this year, industry revenue will climb more than 80 percent annually for at least four more years as high resolution and color displays are increasingly adopted in devices. By 2023, the market will be worth some $22.7 billion, as shown in the attached figure.

In terms of shipments, the market will surge to 800 million units in 2023, up from 54 million in 2014.

Samsung, LG, Sony, Asus and Motorola were on hand at IFA to introduce proprietary offerings—ostensibly to get a head start on Apple, which unveiled its own smartwatches a few days later after the show, in which it does not participate. 

Samsung introduced the Gear S smart watch, which features a curved screen and a 2-inch super active-matrix organic light-emitting diode (AMOLED) flexible display that is large enough to accommodate a keyboard for the smartwatch.

For its part, LG introduced the G Watch R that flaunts a completely circular screen. With a 1.3-inch diameter, this round display has 57 percent more area than a square screen. The sleek P-AMOLED panel is less than 0.6mm thick and features 320 x 320 resolution, 100-percent color gamut, 300-nits peak luminance and unlimited contrast ratio, typical of an organic light-emitting diode (OLED) display.

LG Display recently started mass production of its revolutionary circular plastic P-OLED screen, made possible by the company’s development of a circular mask and new production processes that improve deposition efficiency and employ highly precise laser cutting. LG Display’s power-save mode, which enables the screen to retain its resolution without a power supply, has also contributed to longer battery life for the watch.

Like the G Watch R, Motorola’s Moto 360 also comes with an attractive round screen. Both the LG and Motorola models are powered by Android Wear as extensions of the Android smartwatch ecosystem. Meanwhile, the Samsung Gear S employs Samsung’s Tizen operating system.

After months of rumors, Apple finally introduced the Apple Watch—fashionably late but highly anticipated. Set to be available at the beginning of 2015 with a starting price of $349, Apple Watch will use a square display. Detailed specs about the display are still not available, but the wearable timepieces will employ a flexible Retina display. According to Apple, the display is “not just a display but the focal point of the whole experience.” Its advertised flexibility, high-energy efficiency and very-high contrast mean it likely will use an OLED display.

And just like the iPhone, Apple Watch will have the solid advantage of application support from its entrenched ecosystem fully behind the product. 

Imperatives for wearable displays

Developments in flexible displays have opened up new opportunities for wearable devices, enabling the kind of design innovations seen in the latest group of smartwatch products at IFA.

“Wearables are best viewed as functional fashion accessories rather than as electronic goods,” said Sweta Dash, senior director for research and display at IHS. But because the fashion accessory market is determined by design rather than by simple function, wearable products such as smartwatches must be adaptable to various forms including squares, circles or even ovals.”

Displays used in wearables need three essential elements, Dash noted. These include outdoor visibility, low power consumption and flexibility in form factor and design. New forms of display, such as stretchable panels that are expected to come in the near future, can meet even more demanding designs in wearables, creating possibilities for exotic shapes and forms.

Also of significance in future wearables will be efficient, low-power flexible displays with longer battery lives that enable increased functionality in smaller form factors. Expected to dominate the wearable display market with improved capability and reduced costs is OLED, a self-emissive display technology with no backlight, excellent flexibility, faster response time and great video quality.

Most of the next wave of wearable products will come from smartwatch computing, Dash remarked. This field of wearable technology will be diverse, ranging from gaming, to infotainment, to health monitoring.

On the downside, most current products—including smartwatches and smartglasses from Google and others—are not completely ready for mainstream consumer adoption. The smartwatch models shown at IFA and Apple’s offerings alike are all expensive and lack the kind of affordable pricing to make them universally appealing. Moreover, a clear value proposition is needed before consumers fully accept the design and available applications provided by these new timepieces to replace the trusty traditional watches of old.

Wearable devices will need to strike the correct combination of price, performance, form factor and usability to reach the consumer mainstream market, IHS believes. Until then, actual wearable products like smartwatches may take longer to gain traction before the market can take off. 

These findings can be found in the Displays research service of IHS Technology.

Pixelligent Technologies announced today that it has been selected for a Department of Energy (DOE) solid-state-lighting award to support the continued development of its OLED lighting application. The details of the award can be viewed on the DOE SSL website. Pixelligent and its partner OLEDWorks were selected as one of only nine awardees nationwide for this $1.25 million DOE award.

“This is the second OLED lighting award we have received from the DOE in partnership with OLEDWorks, which clearly demonstrates our leadership position in developing the next generation materials required to accelerate the commercialization of OLED lighting,” said Craig Bandes, President & CEO of Pixelligent Technologies.  “We are proud to have been selected by the DOE for this highly competitive grant that, when combined with our internal investments, will provide the resources required to optimize our OLED lighting application,” said Gregory Cooper PhD, Founder & CTO of Pixelligent Technologies.

The goal of this project is to develop a novel internal light extraction design that improves the light extraction efficiency of OLED lighting devices by more than 200%, without negatively impacting the device voltage, efficacy, or angular color dependence.

“This federal grant reflects the type of common sense investments we should be making to help our economy rebound by boosting U.S. manufacturing and high-tech innovation,” said Congressman Ruppersberger of Maryland’s Second District. “The fact that one of Baltimore’s own companies was selected and will be bringing jobs back to the city is icing on the cake. Pixelligent is an impressive and growing company, and I am proud that they have chosen the Second District to call home.”

Kateeva  announced that it has closed its Series D round with $38 million in financing. The newest participant is Samsung Venture Investment Corporation (SVIC). Existing investors also contributed. They include: Sigma Partners, Spark Capital, Madrone Capital Partners, DBL Investors, New Science Ventures, and VEECO Instruments, Inc.

The company has raised more than $110 million since it was founded in 2008.

Kateeva makes the YIELDjet™ platform — a precision deposition platform that leverages inkjet printing to mass produce flexible and large-size OLED panels. The new funds will be used to support the company’s manufacturing strategy and expand its global sales and support infrastructure. Production systems are currently being built at the company’s facility in Menlo Park, Calif. to fulfill early orders.

The funding news coincides with the 2014 OLEDs World Summit taking place this week in Berkeley, Calif.

“Kateeva is a technology leader and has built a significant business in the OLED space,” said Michael Pachos, Senior Investment Manager at SVIC. “The company has demonstrated both a technical and business vision in driving adoption of OLED displays and lighting, and we look forward to contributing to its progress.”

“We believe that OLEDs on flexible substrates play a major role in the insatiable quest for ultra-durable, high-performance, and unbreakable mobile displays, and Kateeva has proven to hold the keys to a critical industry problem,” said Fahri Diner, Managing Director of Sigma Partners and a member of the Board of Directors of Kateeva. “Moreover, we are very excited about Kateeva’s impressive innovations that are poised to make large-panel OLED televisions finally an affordable reality — perhaps the Holy Grail of the display world. In partnership with SVIC, we’re delighted to offer continued support to Kateeva as they rapidly scale operations to support accelerating demand for OLED manufacturing solutions,” Diner continued.

Kateeva Chief Executive Officer Alain Harrus said: “SVIC’s investment speaks volumes about our technology’s enabling value to world-class OLED producers. It will reinforce our leading position and help serve all our customers better. Also, we appreciate our existing investors for their enduring commitment and trusted guidance. Thanks to their confidence in our technology and execution, mass producing OLEDs will be much smoother for leading display manufacturers.”

The Plastics Electronics Conference and Exposition will co-locate with SEMICON Europa. Plastic Electronics 2014 (PE 2014) is themed “Enabling Applications beyond Limits in Electronics” and will be held at Alpexpo in Grenoble on 7-9 October. PE2014 is an ideal forum to meet technology leaders and professionals from industry, academia, and research organizations focused on developing the next-generation of plastic and organic electronics.

According to analysts, the plastics electronics market is growing rapidly and is expected to reach $13 billion by 2020 driven by increasing applications in the semiconductor and electronics market. Applications like large area displays, solar panels and printed electronics are now responsible for a substantial portion of the PE market, and emerging applications like OLED, thin-film batteries, and sensors are emerging growth opportunities.

Manufacturability of Plastic Electronics has made major steps in the last year, moving from research level to industrial relevance.  Still, numerous barriers to commercialization must be overcome — from material development to integration, manufacturing, processing, and assembly issues. PE2014 covers these issues currently driving development and impeding progress.

Plastic electronics’ imminent transition from the R&D phase to the industrialization stage is highlighted by several keynote presentations at the PE2014 (www.plastic-electronics.org).  Fiddian Warman, founder and managing director, SODA, will present on, “How design type approaches can be effective in facilitating innovative technological development and open up new markets and opportunities,” and John Heitzinger, president, Soligie, Inc., will delve into “Advances in Additive Manufacturing of Electronics.”

The exposition and conference cover the entire span of Plastic Electronics —Hybrid and Heterogeneous Integration; Organic Electronics; OLEDs, Displays, and Lighting; and Flexible Photovoltaics — offering the latest developments for engineers, material experts, manufacturing professionals and industry strategists. Highlights are:

  • Business Case session —  speakers from imec, ISORG, Nokia, Philips Research, Plastic Logic, SODA, STMicroelectronics, Valeo, and Yole Developpement.
  • Manufacturing Panel Discussion on “Building a Leadership Position in PE” — panelists from Bosch, Cambridge, CEA, Joanneum Research, and Ynvisible.
  • Manufacturing Session — presenters from Applied Materials, Beneque, CEA Tech, Dupont Teijin Films UK Ltd, Joanneum Research, NovaCentrix, Roth and Rau B.V.,  Soligie, Universal Laser Systems, Ynvisible — as well as Cambridge University, the European Commission, and VTT (Finland).
  • Technologies/Materials Session — features speakers from Arkema, Arizona State University, CEA-LITEN, Corning, Fraunhofer, imec, and Sunchon National University.

The Plastic Electronics Exhibition & Conference 2014 is hosted by SEMI and representatives of leading industry companies, research centers and institutes. SEMI focuses its activities on roadmaps, standardization, research and statistics, conferences, exhibitions and public policy worldwide.  For more information on the conference, presenters, topics, events and exhibitors, visit www.plastic-electronics.org.

During the three days of SEMICON Europa 2014 (www.semiconeuropa.org), more than 8,000 visitors from all over the world are expected at the trade fair. The combination of SEMICON Europa with Plastic Electronics offers visitors and exhibitors excellent synergies and opportunities.