LEDs & OLEDs

Technologies | Light Conversion | LEDs | Quantum Dots | Aug 23, 2017
1000 Hour Quantum Dot LED Milestone Surpassed by Quantum Materials Corp
1000 Hour Quantum Dot LED Milestone Surpassed by Quantum Materials Corp Leading American Cadmium Free Quantum Dot manufacturer Quantum Materials Corp announced successfully surpassing the 1000 hour continuous on-time durability test for the Company's cadmium-free quantum dots in a remote light emitting diode (LED) application. The testing has been conducted with red and green quantum dots encapsulated in resin and mounted to blue emitting LED's (see diagram below), which are similar to the type of LED's used in standard LCD display back light units (BLU). Read more »
Technologies | Laser Technology | Jun 30, 2017
World’s Brightest Laser Sparks New Behavior in Light
World’s Brightest Laser Sparks New Behavior in Light Physicists from the University of Nebraska-Lincoln are seeing an everyday phenomenon in a new light. y focusing laser light to a brightness 1 billion times greater than the surface of the sun — the brightest light ever produced on Earth — the physicists have observed changes in a vision-enabling interaction between light and matter. Read more »
Technologies | Manufacturing | LEDs | Jun 29, 2017
High Conductive Foils Enabling Large Area Lighting
High Conductive Foils Enabling Large Area Lighting Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP as one of the leading partners for research and development for surface technologies and organic electronics and Sefar AG, a leading manufacturer of precision fabrics from monofilaments, developed a roll-to-roll processed large area flexible OLED during a joint project. Read more »
Resources | LpR Article | Research | LEDs | Manufacturing | Quality | May 16, 2017
Variability in LED Production and the Impact on Performance
Variability in LED Production and the Impact on Performance LEDs are subject to manufacturing deviations, which have an impact on the end product. Benoit Bataillou and T. Merelle, guest authors from Pi Lighting, review the surprisingly large impact on LED performance and light quality. They used traditional as well as modern indicators like CRI and TM-30 as well as the latest circadian indices to measure. The results are explained by spectral modeling and a variability study. They show the large impact on CRI, even with small deviations inside the same bin. Read more »
Resources | LpR Article | Research | LEDs | Electronics | Manufacturing | May 16, 2017
Smart LED System in Package through Wafer Level Integration Approach
Smart LED System in Package through Wafer Level Integration Approach It is believed that LEDs will dominate all lighting applications in the near future. Integration and packaging are the two critical issues that, if resolved, will enable efficient and reliable solutions for lighting requirements. Z. Kolahdouz, H. van Zeijl, and G. Q. Zhang from the Institute of Microsystems and Nanoelectronics (DIMES) at the Delft University of Technology, and M. Kolahdouz from the Thin Film Laboratory and Nano-Electronics at the Department of Electrical and Computer Engineering of the University of Tehran show that wafer level packaging is a promising method to ensure lower cost, higher scale, and superior yield. A new integration approach of a smart unit of LED lighting is introduced: LED System in Package (SiP). Read more »
Resources | LpR Article | Research | Light Conversion | May 16, 2017
New Glass-Based Phosphors for White Light-Emitting Diodes
New Glass-Based Phosphors for White Light-Emitting Diodes Phosphors were always the key component of high quality white LED light. With the increased effîcacy and the higher power capabilities of blue high power LEDs, the phosphors become even more important for reliability, color consistency and overall light quality. Franziska Steudel, Florian Wagner, A. Charlotte Rimbach, Bernd Ahrens, Peter W. Nolte and Stefan Schweizer, scientists at the Fraunhofer Application Center for Inorganic Phosphors, a Branch Lab of Fraunhofer Institute for Microstructure of Materials and Systems IMWS, investigated different glass and ceramics based phosphors for white LEDs. Read more »
Resources | Intellectual Properties | Reports | Light Conversion | Apr 29, 2017
Research and Markets Offers LED Lighting - Key Patent Analysis: Remote Phosphor
LEDs, which are semi-conductor devices that convert electricity into light by the properties of compound semi-conductors, have higher energy efficiency and cost less for replacement due to longer lifetimes than existing lighting systems, and have high resistance to impact or vibration. Furthermore, LEDs have advantages in terms of energy saving and protection of the environment since they do not use toxic substances such as mercury, which give an impetus to their market entry as new lighting systems to replace existing lighting systems. Read more »
Resources | Intellectual Properties | LEDs | Material Science | Apr 29, 2017
Epistar’s Patent Portfolio Reaches New Milestone of 1,000 Granted Patents
As a world-leading company in LED chip technology, Epistar Corporation was granted its 1000th patent recently. This number will continue to grow as there are about another 1,000 applications pending worldwide. Since its establishment in 1996, Epistar has firmly believed that technology innovation is the foundation for being a leader in the industry, and that acquisition and strategic deployment of intellectual property rights, such as patents, is a key to success. Read more »
Resources | Intellectual Properties | Reports | Light Conversion | Apr 29, 2017
Effects of Expiring Phosphors and QD IP on the LED Applications Patent Landscape
Effects of Expiring Phosphors and QD IP on the LED Applications Patent Landscape The latest Yoel report on will especially concentrate on the question how IP forces will evolve, with fundamental patent expiring in the next years? The report provides a detailed picture of the patent landscape for LED downconverters, namely Phosphors & Quantum Dots (QD). It covers patents published worldwide up to September 2015. More than 7,510 patent families relevant to the scope of this report have been selected. Read more »
Resources | Intellectual Properties | Reports | LEDs | Nanowire | Apr 29, 2017
Yole Releases New Nanowire LED IP Study - Startups Compete with Asian LED Giants in the IP Landscape
Yole Releases New Nanowire LED IP Study - Startups Compete with Asian LED Giants in the IP Landscape Asian giants Samsung, Panasonic and LG are the top three patent assignees for Nanowire LED technology. Facing them are several startups including glo, Aledia and Ecospark, which between them have raised more than $150M - thus confirming their serious interest in this field. However, these newcomers face strong technological challenges. Read more »
Technologies | LEDs | Light Generation | Apr 18, 2017
New Cree NX Technology Platform Redefines LED Performance for Next Generation Lighting Systems
New Cree NX Technology Platform Redefines LED Performance for Next Generation Lighting Systems Cree announces a major LED breakthrough with the revolutionary NX technology platform that will power the next generation of Cree’s lighting-class LEDs. The NX technology platform enables the new Extreme Density (XD) LED family that delivers up to four times higher lumen density than Cree’s previous generation of high power LEDs. This new technology platform makes possible innovative new designs, eliminating current constraints for a wide spectrum of lighting applications such as color-mixing, directional lighting and industrial lighting. Read more »
Resources | LpR Article | Research | Light Generation | Light Conversion | Material Science | Mar 13, 2017
Lead Halide Perovskite Nanocrystals - A New Promise for Light Emitting Devices
Lead Halide Perovskite Nanocrystals - A New Promise for Light Emitting Devices Perovskites structured materials have attracted scientific and technological interest in the last four years. Recent studies have shown that these materials could deliver high photoluminescence efficiency at any desired wavelength in the visible spectrum. Mirko Prato and Francesco Di Stasio, Technologist and Marie Curie Fellow of the Institute of Photonic Sciences at the Istituto Italiano di Tecnologia focus on the application in single color LEDs (red, green and blue) and white emitting color-converting layers. They discuss what limits their application in everyday technology like toxicity and limited functional stability. Read more »
Resources | LpR Article | Tech-Talks Bregenz | OLEDs | LEDs | Mar 13, 2017
Tech-Talks BREGENZ - Norman Bardsley, President of Bardsley Consulting
Tech-Talks BREGENZ - Norman Bardsley, President of Bardsley Consulting Professor of Physics, Dr. J. Norman Bardsley, has become an internationally recognized expert in SSL through his activities as an advisor for DoE and ISA. Dr. Bardsley has a profoundly deep knowledge and understanding of OLED technology, which includes the manufacturing thereof, cost structures and research activities. LED professional talked with him about the different aspects of OLED lighting technology and asked for his thoughts on future perspectives. Read more »
Resources | LpR Article | Commentary | Business | LEDs | Trends | Mar 13, 2017
From Component to System, Andreas Weisl, CEO at Seoul Semiconductor Europe GmbH
From Component to System, Andreas Weisl, CEO at Seoul Semiconductor Europe GmbH The history of Light-Emitting Diodes (LED) is quite short compared with some other electronic device industries. However, it has changed and revolutionized the entire world of light within a very short period of time. The history of Light-Emitting Diodes (LED) is quite short compared with some other electronic device industries. However, it has changed and revolutionized the entire world of light within a very short period of time. Read more »
Nanowire | Technologies | LEDs | Light Generation | Feb 14, 2017
Nanorod LEDs with Two Functions Could Make Multifunctional Displays
Nanorod LEDs with Two Functions Could Make Multifunctional Displays Cellphones and other devices could soon be controlled with touchless gestures and charge themselves using ambient light, thanks to new LED arrays that can both emit and detect light. Made of tiny nanorods arrayed in a thin film, the LEDs could enable new interactive functions and multitasking devices. Researchers at the University of Illinois at Urbana-Champaign and Dow Electronic Materials in Marlborough, Massachusetts, report the advance in the Feb. 10 issue of the journal Science. Read more »
Resources | Fundings | LEDs | Feb 09, 2017
International FLINGO Project to Improving the Properties of LEDs Has Started
International FLINGO Project to Improving the Properties of LEDs Has Started In view of the growing demands placed on the electrical, optical and thermal functionality of LEDs, more and more attention is being paid to research into new material properties. The purpose of the FLINGO project is therefore to develop new materials (layers in particular) and processes to improve the characteristics of LEDs, such as efficiency and durability. The intention is to maintain and improve market leadership in innovative LED products. As the project coordinator, Osram Opto Semiconductors is working since February 2017 with renowned universities, research institutes and companies. The German Federal Ministry for Education and Research is sponsoring the FLINGO project (Functional Inorganic Layers for Next Generation Optical Devices) as part of the M-ERA.NET EU initiative. Read more »
Resources | Technologies | Light Generation | Thermal Management | Medical | Jan 26, 2017
Thermal Management of an LED Light Source for Microscopes
Thermal Management of an LED Light Source for Microscopes Thermal management is a challenge for every LED and LASER solution. Microscope lighting solutions have some very critical requirements, especially if they concern medical applications. ESCATEC in Heerbrugg, Switzerland has a lot of experience in that field and covers all relevant technical disciplines. Wolfgang Plank, head of the MOEMS Future Laboratory and cleanroom, and Gerd Harder, Key Account Manager, give insights on the design process, thermal simulation and production of an LED light source for Leica Microsystems’ Ophthalmic Microscope Proveo 8. Read more »
Resources | LpR Article | Tech-Talks Bregenz | Light Conversion | Jan 26, 2017
Tech-Talks BREGENZ - Dr. Rubén D. Costa, Group Leader, University of Erlangen-Nuremberg
Tech-Talks BREGENZ - Dr. Rubén D. Costa, Group Leader, University of Erlangen-Nuremberg Light quality and costs of LED systems remain an important topic even though big improvements have been made. New approaches are always welcome and stir up hope. It was exactly a year ago that LED professional published the article by Dr. Rubén D. Costa, Liebig Group Leader at the University of Erlangen-Nuremberg, about his amazing new „Bio-Hybrid“ white LED approach. At LpS 2016 his presentation on the latest research results and improvements also won him the LpS 2016 Scientific Award. Consequently, we just had to invite him to a Tech-Talk Bregenz! In the interview below he gives us some interesting background information about why he started the project, how it works and what he expects in the future. He also gives us his views on LEDs and lighting in general. Read more »
Technologies | OLEDs | Light Generation | Jan 24, 2017
CTI Project Results Promise a Bright Future for OLEDs
CTI Project Results Promise a Bright Future for OLEDs Developing a low-cost, efficient method of increasing the attractiveness of OLEDs for lighting poses a significant challenge. Thanks to a CTI project, CSEM and Sefar AG have succeeded in designing a promising state-of-the-art way of achieving this aim. This technology opens up new opportunities for applications in residential, architectural, professional lighting segments, as well as consumer electronics. Read more »
Resources | LpR Article | Technologies | Manufacturing | LEDs | CoB LEDs | Nov 28, 2016
Comparing New Dielectric Materials for Chip-on-Board LED Packages
Comparing New Dielectric Materials for Chip-on-Board LED Packages Thermal management is still one of the most challenging issues in solid state lighting. With the increased application of COB LED technology, the portion of the dielectric material on the overall thermal resistance has become an important topic. Different solutions and new materials have been proposed over the last few years. Hui Zhang, Max Wagner, and Prof. Tran Quoc Khanh from the Laboratory of Lighting Technology at the Technische Universität Darmstadt compared different materials and present the results of their extensive research. Read more »
Technologies | LECs | Light Generation | Nov 28, 2016
LECs - The Light of the Future Thanks Nanostructures
LECs - The Light of the Future Thanks Nanostructures In future they are to light up the inside of handbags or make evening joggers stand out in the dark: Light-emitting electrochemical cells, LECs, offer many advantages compared to familiar LEDs, but there's still something lacking – the right light. Until now only yellow light LECs are suitable for realistic use. But at least one other light colour is needed for more neutral light. Researchers in the Center for Nanointegration (CENIDE) of the University of Duisburg-Essen (UDE) have now been able to selectively change the colour for the first time and at the same time increase the performance of the LECs. Read more »
Technologies | OLEDs | Flexible OLEDs | Sep 09, 2016
Researchers Propose Graphene Anode for Flexible OLEDs
Researchers Propose Graphene Anode for Flexible OLEDs In their research article, Tae-Hee Han, Min-Ho Park, Sung-Joo Kwon, Sang-Hoon Bae, Hong-Kyu Seo, Himchan Cho, Jong-Hyun Ahn and Tae-Woo Lee from the Pohang University of Science and Technology and the Yonsei University in Korea respectively investigated the use of praphene anodes for ultra-flexible OLED devices. The original article, "Approaching Ultimate Flexible Organic Light Emitting Diodes Using a Graphene Anode", is published in NPG Asia Materials (2016) 8, e303; doi:10.1038/am.2016.108 online on September 9, 2016. Read more »
Resources | Reports | DoE | Market | OLEDs | Jul 14, 2016
DoE Releases OLED Market Report for 2016
DoE Releases OLED Market Report for 2016 The latest DoE market report for OLEDs sounds much more modest than some older market reports when DoE concludes in the management summary: With rapid advances in these areas, this technology could become the complementary solid-state counterpart to LEDs, a dynamic and softly luminous luminaire element and building material. On the positive side, DoE states that while OLEDs are struggling through a similar set of difficulties like LEDs did in the early years, OLED manufacturers have the advantage of having watched and learned from the LED industry’s working through these problems. Read more »
Technologies | LEDs | Light Generation | Quality | Jul 11, 2016
The Right Light for Fashion Retail, Fresh Food and Restaurants - More than just CCT and CRI
The Right Light for Fashion Retail, Fresh Food and Restaurants - More than just CCT and CRI Lumileds recently introduced their Luxeon Stylist Series to support fashion, retail, fresh food sales and restaurants. Lumileds calls their proprietary technology for CoB LEDs CrispWhite Technology, CrispColor Technology™, FreshFocus Technology™ and AtmoSphere Technology™ depending on the focus. In preparation for the product release, Rick Hamburger, Senior Director of Product Management, Eric Senders, Product Line Director CoB, Luis Acena, Senior Manager, Luxeon Stylist Series, Kevin Lucido, Senior Director of Global Marketing Communications discussed the technology and features of the new product series with Arno Grabher-Meyer from LED professional. Read more »
Technologies | LEDs | Light Conversion | Jun 23, 2016
New Phosphor Promises Cheaper and more Efficient Next-Generation LED Lighting
New Phosphor Promises Cheaper and more Efficient Next-Generation LED Lighting Researchers from KU Leuven (Belgium), the University of Strasbourg, and CNRS have discovered a new phosphor that could make next-generation fluorescent and LED lighting even cheaper and more efficient. The team used highly luminescent clusters of silver atoms and the porous framework of minerals known as zeolites. Read more »
page_peel