Led by Philips Technologie GmbH in Germany, the OLED100.eu team which consists of partners from Belgium, Germany, France, the Netherlands, Austria and UK, has been working on OLEDs for the last three years. The aims of the research were to boost the luminous efficacy, strengthen the lifetime, upscale the light-emitting area, optimise processes to slash production costs, and standardise measurement based on application research. During the period, the team has achieved great breakthrough. Firstly, it developed a large-area OLED luminaire consisting of 9 OLE...

OSRAM's Lab.Me laboratory has designed a new nice concept OLED lamp called the A4,featuring a single round Orbeos OLED lighting panel,which can be folded to fit inside an A4 envelope.

Scientists at UC San Diego have made a breakthrough on making millions of flourescent E. coli bacteria flash all at once, creating a sort of living LED screen. Jeff Hasty, a professor of biology and bioengineering led the research team in the university's Division of Biological Sciences and BioCircuits Institute.   It took him and his team about five years and a series of papers to develop what he calls the "biopixels" that make up the living LED screen. Firstly, date back to 2008, Hasty and his team published a paper that showed how they built ...

LG Electronics will showcase the world's largest OLED TV with 55 inches they claim at the Consumer Electronics Show (CES) in Las Vegas.   The new LG OLED TV generates the most natural colors of any TV set at a much lower price point than could have been achieved using the standard manufacturing process.   What sets LG's TV picture apart from other OLED TVs is 4-Color Pixels and Color Refiner which work together to generate natural and accurate colors that are sharp and consistent. The 4-Color Pixels feature allows for mor...

Recently, a German company has utilized LEDs to create ‘virtual sky’ of passing clouds for office workers. The Stuttgart-based Fraunhofer Institute for Industrial Engineering IAO replicate the feeling of spaciousness and freedom what we experience outdoors into indoors: a luminous ceiling that extends across the entire room simulates lighting conditions which resemble those produced by passing clouds – conveying the impression that you are sitting outdoors. The innovative luminous ceiling, which was developed by the Fraunhofer researchers and their partn...

Following EPISTAR LAB’s recent 216 lm/W record-breaking achievement, Epistar introduces three LED chipset products with 100, 120, and 150 lm/W package efficiency, respectively. The three chipsets are named Standard Set, Premium Set, and Deluxe Set; all feature with CRI >85 and 2700-3000K CCT: Aiming at the final system efficiency greater than 80 lm/W, the Premium Set emphasizes its  impressive package efficiency with affordable cost for 60W bulb and high performance T5 tube repleacement. Pointing towards the final system efficiency...

LG has announced the world’s largest OLED display at 55 inch, marking that we are much closer to getting mass produced OLED displays. The new TV features a ‘wider’ color gamut than LCD screens and is impossibly thin — only 5mm. Additionally, it can have amazing response times that can skirt 0.01 millisecond and refresh rates of 100,000hz as a result. It has a response time of 2-8 milliseconds and hence are capable of refresh rates of about 200Hz. OLED’s also have better contrast. LG’s 55inch behemoth has a contrast ratio of 1...

Recently, Researchers from Dresden's University of Technology (TU Dresden) have made a breakthrough on a highly efficient white top-emitting OLED design that feature "outstanding" color quality, and is compatible with flexible OLEDs. In this new design a refractive index matched microlens film was laminated to the top-emitting OLED to form direct optical contact. It has a CRI of 93, CIE coordinates of (0.472, 0.430) and an emission from 410 to 750 nm that almost spans the complete visible spectrum (380 to 780 nm). The efficiency is up to 30 lm/W...

EPISTAR LAB announces its highest efficacy with warm white high voltage chipset. With its outstanding efficacy, higher CRI, and competitive lm/$, the solution of direct red platform is widely used in warm white application. Recently, EPISTAR LAB has successfully achieved the warm white efficacy     of 216 lm/W at an operating current of 5 mA and CRI of 87 Ra at CCT of 2700K. Under a typical driving current of 15mA (or about 1 W operation equivalent), the luminous efficacy of 197 lm/W was achieved. EPISTAR LAB’s ...

SiliconCore Technology has launched its breakthrough 1.9mm pitch LED display panel technology with a high integration, low power LED Driver integrated circuit for indoor applications. The device can drive up to 128 RGB (Red-Green-Blue) LED pixels resulting in a drastic component count reduction. The fine pitch technology also pioneers the use of “Common Cathode” RGB LED topology which results in up to 30% reduction in power dissipation and overcomes the overheating issue. Other innovations include ghost image elimination, true 16-bit color, dra...

UK-based manufacturer of cadmium-free quantum dots, Nanoco, has signed a joint development agreement with a global LED lighting company. The colour performance of the quantum dot technology attracts commercial LED lighting. As a result, the cooperators will see the university spin-out's cadmium-free quantum dots (CFQD) technology used in high volume LED lighting systems. The 12 month agreement with the lighting company is expected to be followed either by further development work or by proceeding to product launch. But they haven’t disclosed the financial d...

Recently, Koito Manufacturing Co Ltd has made use of the design freedom of LEDs to designed a head lamp and showcased it at the 42nd Tokyo Motor Show 2011. The head lamp, named "Ganriki" (eye force), is shaped like a human eye and the most distinctive feature is its winker lamp (the part emitting yellow light in the picture). The LEDs vertically arranged on the fender side emit light downwards and inward while the LEDs horizontally arranged at the bottom emit light inward. The emitted light is guided to the light guiding path made by injection molding of ...

Recently, the Samsung Advanced Institute of Technology and Seoul National University have made an announcement that the first LEDs to be fabricated on amorphous glass substrates. As we know, manufacturers may peffer to improve GaN LEDs on silicon substrates (GaN-on-Si) rather than to choose gallium nitride (GaN)-based LEDs grown on crystalline sapphire wafers due to their expensive cost and are not amenable to large-sized wafer arrays. But the research conducted by the Samsung Advanced Institute of Technology and Seoul National University has found that...

Researchers from the University of Washington and Finland's Aalto University have developed and tested a contact lens that wirelessly displays a one-pixel LED image on a contact lens. According to the research, the lens was tested on anaesthetized rabbits "with no observed adverse effects." The embedded display in the lens receives data wirelessly through a radio antenna and displays it using a sapphire chip with an embedded micro-LED. The entire system is powered by a silicon power harvester that draws energy from a battery up to 2 cm away. Unlike virtual...

A project funded by the EU,  known as IMOLA (Intelligent light Management for OLED on foil Applications), will put a focus on the development of large-area OLED-based lighting modules with built-in intelligent light management. These OLED-based lighting modules will be used in future energy-efficient wall, ceiling and car dome lighting, where the light intensity can be adjusted intelligently, e.g. according to the time of the day or weather conditions.   OLEDs are paper-thin, flexible and lightweight electronic devices that consist of organic materi...

Researchers from the Harvard School of Engineering and Applied Sciences (SEAS) have made a breakthrough on a novel single-layer design for building quantum-dot light-emitting devices (QD-LEDs) by stacking quantum dots within an insulating structure having the shape of an egg crate. The new QD-LED has been claimed to resemble a sandwich with a single active layer of quantum dots nestled in insulation and trapped between two ceramic electrodes and the dots kept apart from each other by the egg-create design. QD-LEDs can be used in lasers, general light sources, ...

According to Sandia National Laboratories recent research, diode lasers could eventually compete with LEDs for home and commercial lighting solutions. Sandia National Laboratories recently asked participants to rate various LED and diode laser lighting scenarios and found that in some situations consumers preferred the diode lasers. As we know, LEDs are the most energy-efficient replacements for the incandescent bulbs. But less people know LEDs lose efficiency at currents higher than 0.5 amps. The diode laser actually improves at higher currents, which means it ca...

According to OSRAM, it has claimed to created the world's most efficient OLED lighting panel with an efficiency of 32 lm/W and a birghtness of1,000 cd/m².   OSRAM's flexible OLED research was conducted as part of the TOPAS 2012 project - the same project in which OSRAM developed the 87 lm/W white OLED panel back in June.  ...

Everlight has released a 3-step MacAdam Ellipse binning of all warm white color temperatures -- 2700K, 3000K, 3500K, and 4000K CCT -- for the Shuen (C06) and Shwo (C19) high power lighting LED series. Everlight’s ‘Smart Binning’ initiative is aimed at reducing the variation in chromaticity in lighting applications. Color consistency is a key determinant of a product’s quality and appeal in lighting applications. This consistency is not only determined by the control of chromaticity from LED to LED inside a product but from one comple...

98 CRI milestone for light quality drives LED adoption in retail, hospitality, residential and museum applications Intematix Corporation, a leading innovator of patented phosphor materials and components for high-quality LED lighting, today announced that it has demonstrated a phosphor blend that provides a near perfect color rendering index (CRI) of 98 and R9 value of 99 when applied to a reference LED package. The results highlight Intematix's unique phosphor leadership in the LED lighting industry, as the phosphor blend combines three separate material famili...

At the Strategies in Light Europe conference, Texas Instruments Incorporated (TI) (NYSE:TXN) introduced two highly integrated, phase-dimmable AC/DC LED lighting drivers, LM3448 and TPS92070, for use in solid state lighting residential, architectural, commercial and industrial applications, such as retrofit bulbs, LED ballasts, downlights, spot lights and other luminaires. For information and samples, see: www.ti.com/lm3448-pr and www.ti.com/tps92070-pr. TI is showcasing its LM3448 and TPS92070 at Strategies in Light Europe (booths #222, #224) in M...

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Recently, Universal Display Corporation from Ewing, New Jersey, has presented the Society of Photo-optical Instrumentation Engineers (SPIE) Optics + Photonics Conference held at the San Diego Convention Center in San Diego, CA from August 21 - 25, 2011. The company introduced advances in the company’s white OLED lighting technology and showcased a potential application using white OLED lighting panels. DOE Solid State Lighting program titled“High Efficacy Integrated Under-Cabinet Phosphorescent OLED Lighting Systems”in par...

The IR OSLON SFH 4715S of OSRAM Opto Semiconductors is today’s smallest infrared LED with more than one Watt optical power. The device measures only 3.75 x 3.75 mm² and therefore facilitates very compact illumination units for CMOS and CCD cameras. OSRAM’s nanostack chip technology and a temperature stable OSLON Black Series package paved the way for the record-breaking high performance device. The infrared OSLON typically provides 1070 mW optical power at 1 A operating current, and it features a typical thermal resistanc...

Reportedly, Lebelight Technology Co. Ltd, a high power LED company from Xiaoyi, Shanxi of China has set up a new record on cutting-edge product 150 lm 1w LED on 12th, July 2011. 1w of its green lighting products needs only 350 mA of drive current to achieve 150-160 Luminous Flux, which has increased the world record by 70% and also reduced the cost in producing the same quantity of products. It’s said that this development is another world-famous breakthrough of Lebelight since its white lighting LEDs reached 98 lm on 3rd November 2010. It indicates that ...

Reportedly,networking researchers come from the Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute HHI in Berlin, Germany, have used LED lighting to distribute Full HD movies to notebooks, smartphones and other devices, in a system that could join WiFi and PowerLine networks in shuttling high-speed data around the home and office. The optical WLAN co-opts white LEDs used for regular illumination to transmit data at up to 100 Mbit/s, by flickering it more rapidly than the human eye can see. The lighting units – which rely on norma...

Researchers from University of Illinois have utilized an epitaxial approach to develop a 3-D photonic crystal LED, the first such optoelectronic device. According to Paul Braun, a professor of materials science and engineering and of chemistry who led the research effort, "We've discovered a way to change the three-dimensional structure of a well-established semiconductor material to enable new optical properties while maintaining its very attractive electrical properties." Photonic crystals can control or manipulate light in unexpected ways with their unique ...

Toshiba's Tamonari Shioda has presented the company’s new discovery about the green gap in LEDs at the ninth International Conference on Nitride Semiconductors (ICNS). Currently, the green gap in LEDs is that the rapidly declining efficiency of green light emitters at longer and longer wavelengths. According to Toshiba's Tamonari Shioda, by inserting thin AlGaN layers in the active region of a conventional device, this approach could increase the output power of green LEDs by a factor of almost ten.  ...

Reportedly, Samsung Advanced Institute of Science and Technology (SAIT)  has set up a new record of manufacturing nitride LEDs on 200 mm silicon. Instead of sapphire,with this platform, the widely used substrate for making LEDs promises to cut the cost of LED deposition and processing. Growth of high-quality GaN layers on silicon is not easy,because of  differences in both the lattice constant and the thermal coefficient of expansion of the two materials. SAIT has addressed both these issues by creating a crack-free template featuring AlN/Al...

Translucent, Inc., has designed a proprietary GaN-on-Si wafer template with embedded DBR mirrors for low-cost LED growth application. With its new embedded silicon solution (Mirrored Si™), LEDs can now be grown directly on top of the GaN-on-Si template that includes an embedded DBR mirror, directly lattice matched to the silicon substrate. On top of this DBR mirror is a layer of proprietary patented Rare Earth Oxide (REO), which allows GaN to cap the template and does not require subsequent removal of the substrate. At present, the company i...