Technology News Articles

Technology News

Trends | Research News | OLED | Display | Jan 17, 2022
Researchers Develop First Fully 3D-printed, Flexible OLED Display
Researchers Develop First Fully 3D-printed, Flexible OLED Display In a groundbreaking new study, researchers at the University of Minnesota Twin Cities used a customized printer to fully 3D print a flexible organic light-emitting diode (OLED) display. The discovery could result in low-cost OLED displays in the future that could be widely produced using 3D printers by anyone at home, instead of by technicians in expensive microfabrication facilities. Read more »
Resources | LpR Article | Technologies | LED Drivers | Jan 13, 2021
How to Increase the Efficiency of Two-Stage Drivers
How to Increase the Efficiency of Two-Stage Drivers In this article, Dr. Weirich from Infineon Technologies, describes a simple method for increasing the efficiency of drivers that can operate with LED engines with a wide range of current and power levels, at virtually no effort. In addition, the method allows for using smaller inductors in the buck stage, leading to lower cost and potentially, smaller size. Read more »
Research News | Technologies | microLEDs | Nanowire | Nanowire-LEDs | Dec 16, 2020
Aledia Has Produced Its First Nanowire Chips on 300mm Silicon Wafers Using CEA-Leti Pilot Lines
Aledia Has Produced Its First Nanowire Chips on 300mm Silicon Wafers Using CEA-Leti Pilot Lines Aledia, a French startup pioneering a disruptive technology for microLED displays, today announced it has manufactured the world's first microLED chips produced on 300 mm (12") silicon wafers. The company, which developed its breakthrough technology on 200 mm (8") silicon wafers over the past eight years, will produce the chips on both 200 mm and 300 mm wafers. The larger wafers provide better economic payoff and cost-effective integration with smaller-node electronics, which are only available on 300 mm silicon wafers. Aledia was spun out of CEA-Leti, a French research institute pioneering micro- and nanotechnologies, in 2012, and the work on 300 mm wafers has been performed by joint Aledia and CEA-Leti teams. Read more »
Research News | Environment | Health + Environment | Oct 30, 2020
Research Shows that Streetlights Contribute Less to Nighttime Light Emissions in Cities than Expected
Research Shows that Streetlights Contribute Less to Nighttime Light Emissions in Cities than Expected When satellites take pictures of Earth at night, how much of the light that they see comes from streetlights? A team of scientists from Germany, the USA, and Ireland have answered this question for the first time using the example of the U.S. city of Tucson, thanks to "smart city" lighting technology that allows cities to dim their lights. The result: only around 20 percent of the light in the satellite images of Tucson comes from streetlights. The study is published today in the journal "Lighting Research & Technology". Read more »
Research News | HCL-Research | Special Applications | Medical | Health | Oct 23, 2020
LED Technology Shines the Light on Ovarian Cancer Treatment
LED Technology Shines the Light on Ovarian Cancer Treatment Scientists estimate that nearly 60% of all cancer patients do not respond effectively to chemotherapy treatments. Even worse – many of those same patients experience toxic and sometimes deadly side effects. Now, a Purdue University scientist and entrepreneur is working to use simple LED light to help determine if certain chemotherapy options will work for specific patients. Read more »
Research News | HCL-Research | Office Lighting | Oct 23, 2020
Research Project Combines Dynamic Daylight and Artificial Light for a New Quality of Light for Work Environments
Research Project Combines Dynamic Daylight and Artificial Light for a New Quality of Light for Work Environments A new approach to lighting design and technology is the focus of the Double Dynamic Lighting project conducted by the renowned Aalborg University in Copenhagen, supported and accompanied by several leading lighting companies. The research team led by Prof. Ellen Kathrine Hansen is exploring the combination of dynamic daylight and artificial light in a spatial context and opening up a new dimension for architects and lighting experts in supporting individual needs and different working requirements. Read more »
Research News | OLEDs | PLEDs | Sep 28, 2020
EurekAlert - Annunces: Impurities Enhance Polymer LED Efficiencies
EurekAlert - Annunces: Impurities Enhance Polymer LED Efficiencies New research published in EPJ B reveals that the higher-than-expected efficiency of PLEDs can be reached through interactions between triplet excitons, and impurities embedded in their polymer layers. Molecular dynamics simulations have shown that the mysteriously high efficiency of polymer LEDs arises from interactions between triplet excitons in their polymer chains, and unpaired electrons in their molecular impurities. Read more »
Resources | LpR Article | Applications | Technologies | Controls | Smart Lighting + IoT | Aug 31, 2020
Offline Lighting Voice Controller — An Alternative to Voice Assistants
Offline Lighting Voice Controller — An Alternative to Voice Assistants The historical evolution of light control by users started with a mechanical switch followed by potentiometer and dimming, touch panels and touch screens, gesture and movement detection control, and ending with voice. Voice control are mostly online speaker independent like Alexa, Google Home and Siri. But there are privacy and security concerns. Filip Michalski, Electronic Engineer, and Cezary Skotak, CEO, from Cezos describe a speaker independent offline voice controls system, explain the technology and discuss the pros and cons. Read more »
Research News | Partnerships | Micro-LEDs | Light Generation | Special Applications | Displays | Jul 22, 2020
ALLOS and KAUST Are Working on High Efficiency Nitride-Based Red LEDs on Si
ALLOS and KAUST Are Working on High Efficiency Nitride-Based Red LEDs on Si ALLOS Semiconductors has engaged in a collaboration with Prof. Ohkawa and his team at King Abdullah University of Science and Technology (KAUST) for realizing high efficiency nitride-based red LEDs on large diameter silicon substrates. In the collaboration the teams are addressing fundamental issues like the large lattice mismatch and the quantum-confined Stark effect (QCSE) which are preventing the adoption of red nitride-based LEDs for practical industry usage. In particular, for the emerging field of micro LED displays there is a strong demand to enable red LEDs on large diameter wafers in addition to the established blue and green color LEDs in the nitride system in order to reduce manufacturing complexity and cost. Read more »
Research News | LEDs | Perovskite | Inkjet-Printing | Light Generation | Jun 15, 2020
Printed Perovskite LEDs – An Innovative Technique Towards a New Standard Process of Electronics Manufacturing
Printed Perovskite LEDs – An Innovative Technique Towards a New Standard Process of Electronics Manufacturing A team of researchers from the Helmholtz-Zentrum Berlin (HZB) and Humboldt-Universität zu Berlin has succeeded for the first time in producing light-emitting diodes (LEDs) from a hybrid perovskite semiconductor material using inkjet printing. This opens the door to broad application of these materials in manufacturing many different kinds of electronic components. The scientists achieved the breakthrough with the help of a trick: "inoculating" (or seeding) the surface with specific crystals. Read more »
Research News | Technologies | LiFi | Jun 15, 2020
CEA-Leti Researchers Break Throughput Record for LiFi Communications Using Single GaN Blue Micro-Light-Emitting Diode
CEA-Leti Researchers Break Throughput Record for LiFi Communications Using Single GaN Blue Micro-Light-Emitting Diode CEA-Leti today announced its researchers have broken the throughput world record of 5.1 Gbps in visible light communications (VLC) using a single GaN blue micro- light-emitting diode (LED). Their data transmission rate of 7.7 Gbps achieved with a 10 µm microLED marks another step toward commercialization and widespread use of LiFi communication. Read more »
Research News | SSL | LEDs | Light Generation | Light Extraction | Jun 10, 2020
Pushing Photons - Metasurface Design Methods Can Make LED Light Act More Like Lasers
Pushing Photons - Metasurface Design Methods Can Make LED Light Act More Like Lasers UC Santa Barbara researchers continue to push the boundaries of LED design a little further with a new method that could pave the way toward more efficient and versatile LED display and lighting technology: In a paper published in Nature Photonics, UCSB electrical and computer engineering professor Jonathan Schuller and collaborators describe this new approach, which could allow a wide variety of LED devices — from virtual reality headsets to automotive lighting — to become more sophisticated and sleeker at the same time. Read more »
HCL-Research | Research News | Full Spectrum LEDs | Health + Wellbeing | Color Perception | May 11, 2020
Executive Summary on "A Study on the Perception of Full Spectrum LEDs" Published
Executive Summary on "A Study on the Perception of Full Spectrum LEDs" Published From a LED producer's perspective, it is essential to have knowledge about the perception of LEDs by human beings. To consolidate existing and gain new knowledge on recently introduced Full Spectrum LEDs, which claim to bring natural light quality into electric lighting appliances, the Fraunhofer Institute for Building Physics (Germany) conducted a study in cooperation with three main LED manufacturers Nichia (Japan), Seoul Semiconductor (Korea), Toshiba Materials (Japan) and the LED gear supplier Lumitronix (Germany). Read more »
Research News | Technologies | Special Applications | Manufacturing | 3D Printing | May 04, 2020
Austrian Tech University Graz Revolutionizes 3D Metal Printing Using LEDs
Austrian Tech University Graz Revolutionizes 3D Metal Printing Using LEDs A technology developed at Graz University of Technology uses LED instead of laser sources for the additive manufacturing of metal parts and optimizes 3D metal printing in terms of construction time, metal powder consumption, equipment costs and post-processing effort. Read more »
Fundings + Projects | Research News | Office Lighting | Health + Wellbeing | May 04, 2020
Repro-Light Consortium Announce Intelligent Workspace Lighting Concept
Repro-Light Consortium Announce Intelligent Workspace Lighting Concept The pioneering design team at Bartenbach unveils a brand-new intelligent lighting concept set to revolutionize workspace personalization. It is set to deliver a truly user-centric, workspace lighting blueprint for lighting designers to transform workspaces for healthier living. The story began with Bartenbach's involvement in the Repro-light project consortium, funded through the European Commission's Horizon 2020 work program. The scope of the project, "To successfully initiate transformation in the European LED lighting industry, by creating the 'Luminaire of the Future'." Part of this remit was to develop a new customizable lighting system. Read more »
Nichia | Fraunhofer | Featured | Research | Resources | Reports | Apr 22, 2020
Full Spectrum LEDs Outperform Standard LED Lighting, Study Shows
Full Spectrum LEDs Outperform Standard LED Lighting, Study Shows Full Spectrum LED products outperform conventional solutions, according to a study into the visual impact and perceptual performance of LED lighting by the Fraunhofer Institute for Building Physics (IBP) in Stuttgart, Germany. Read more »
Environment | SSL | Health + Environment | Research News | Apr 06, 2020
Light Pollution Suppresses Melatonin Production in Perch
Light Pollution Suppresses Melatonin Production in Perch Melatonin controls the body clock – high melatonin levels make us feel tired in the evening. However, the hormone also plays an important role in animals' biological rhythms. Artificial light at night – light pollution – can suppress the production of melatonin in fish, even at very low light intensities, a finding established by researchers from IGB. Read more »
SSL | Technologies | Research News | UV | Disinfection | Apr 02, 2020
Seoul Viosys and SETi's Violeds Technology Proves 99.9% Sterilization of Coronavirus (COVID-19) in 30 Seconds
Seoul Viosys and SETi's Violeds Technology Proves 99.9% Sterilization of Coronavirus (COVID-19) in 30 Seconds Seoul Viosys and Sensor Electronic Technology, Inc. ("SETi"), leading global innovators of UV LED products and technology, announced that it has been successful in achieving 99.9% sterilization of coronavirus (COVID-19) in 30 seconds. Tests were conducted with the research group of Korea University, Korea's top rank university, by using a compound semiconductor Violeds technology that is being mass-produced. Read more »
SSL | Technologies | Light Generation | Mar 25, 2020
Advanced "Super-Planckian" Material Exhibits LED-Like Light When Heated
Advanced "Super-Planckian" Material Exhibits LED-Like Light When Heated Could there be a new kind of light in the universe? Since the late 19th century, scientists have understood that, when heated, all materials emit light in a predictable spectrum of wavelengths. Research published this week in Nature Scientific Reports presents a material that emits light when heated that appears to exceed the limits set by that natural law. Read more »
HCL-Research | Health | Applications | Feb 24, 2020
LRC Evaluates Hybrid UV/Blue Light Lighting System to Reduce Healthcare-Associated Infections
LRC Evaluates Hybrid UV/Blue Light Lighting System to Reduce Healthcare-Associated Infections People who visit hospitals are expecting care and treatment, not additional complications, yet approximately 1 in 25 patients contract healthcare-associated infections (HAIs) in U.S. hospitals, according to the Centers for Disease Control and Prevention (CDC). Standard cleaning procedures usually involve manual application of detergents and disinfectants. Unfortunately, the efficacy of these manual cleaning procedures can vary considerably. In fact, less than 50% of patient room surfaces are properly cleaned. Read more »
SSL | Technologies | microLEDs | Displays | Feb 13, 2020
Compound Photonics and Plessey Create microLED Display Modules from Bonded Wafers
Compound Photonics and Plessey Create microLED Display Modules from Bonded Wafers Compound Photonics US Corporation (CP), a leading provider of compact high-resolution microdisplay solutions for Augmented Reality (AR) and Mixed Reality (MR) applications, and Plessey Semiconductors Ltd. (Plessey), an embedded technologies developer at the forefront of microLED technology for AR and MR display applications, today announced they have produced the first fully addressable microLED display modules resulting from their previously announced strategic partnership to develop and introduce GaN-on-Silicon microLED based microdisplay solutions for AR/MR applications. Read more »
Resources | LpR Article | Technologies | UV | Horticulture | Feb 05, 2020
Transparent Material Considerations for UV Optics in Horticultural Lighting Applications
Transparent Material Considerations for UV Optics in Horticultural Lighting Applications Advancements in UV LED technology have begun changing the horticultural lighting landscape. Research is still ongoing to discover the extent of benefits and best practices of using UV light in horticulture. Using optics in tandem with UV LED light systems can help reach performance goals and optimize growing. Although there are several UV- transmitting materials available, not all are equivalent or able to meet the requirements for UV applications. Justine Galbraith, glass engineer, and Sharayah Follett, market development manager at Kopp Glass, Inc. discuss the performance considerations of various UV-transmitting materials and how application challenges are addressed by integrating optical elements. Read more »
HCL-Research | Research News | HCL | Health | Flicker | Feb 05, 2020
Flickering Light Mobilizes Brain Chemistry that May Fight Alzheimer's
Flickering Light Mobilizes Brain Chemistry that May Fight Alzheimer's For over a century, Alzheimer's disease has confounded all attempts to treat it. But in recent years, perplexing experiments using flickering light have shown promise. The promise of flickering light to treat Alzheimer's takes another step forward in this new study, which reveals stark biochemical mechanisms: 40 Hertz stimulus triggers a marked release of signaling chemicals. Read more »
Resources | Projects | Fundings | Research News | SSL | Light Conversion | Feb 03, 2020
ENABLED – A New Funded Research Program to Design Fluorescent Proteins for White LEDs
ENABLED – A New Funded Research Program to Design Fluorescent Proteins for White LEDs A joint research project between Spain, Italy and Austria will work to replace inorganic phosphor filters in LEDs by those nature uses deed down the sea. The ENABLED project, coordinated by the Spanish research center IMDEA Materials Institute, has a budget of € 2.7 million euros, will run for the next 3 years and is funded by the European Commission under the Future and Emerging Technologies programme. Read more »
Technologies | Light Generation | LEDs | Phosphors | Jan 22, 2020
Researchers from Hokkaido University Let Europium Shine Brighter
Researchers from Hokkaido University Let Europium Shine Brighter A stacked nanocarbon antenna makes a rare earth element shine 5 times more brightly than previous designs, with applications in molecular light-emitting devices. - The europium Eu(III) complex with nanocarbon antenna emitting fine red light. Read more »
Technologies | Horticulture | Standardization | Jan 09, 2020
Researchers Call for Greenhouses LED Lighting Standards
Researchers Call for Greenhouses LED Lighting Standards While LED lighting can enhance plant growth in greenhouses, standards are needed to determine the optimal intensity and colors of light, according to Rutgers research that could help improve the energy efficiency of horticultural lighting products. Read more »
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