French research institute CEA-Leti announced that its researchers have broken the throughput world record of 5.1 Gbps in visible light communications (VLC) using a single GaN blue Micro LED. Their data transmission rate of 7.7 Gbps achieved with a 10 µm Micro LED marks another step toward commercialization and widespread use of LiFi communication. (Image: CEA-Leti) VLC, or LiFi (light fidelity), is an emerging wireless communication system that offers an alternative or a complementary technology to radio frequency (RF) systems such as WiFi and...

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. 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. (Image: UCSB) Usually LEDs emit spontaneous light, comparing to...

LG Display announced that it will be leading Korean national project for developing stretchable displays, aiming to expand display applications in the era of IoT, 5G and self-driving car. Selected by South Korea’s Ministry of Trade, Industry and Energy (MOTIE), LG Display will oversee the large-scale R&D project and lead a collective of 21 entities covering related companies, research institutes and universities. Jointly these parties will develop core technologies, materials, component and build up a robust ecosystem for Korea’s display technolog...

Perovskite is one of the focuses of LED research as the material is believed to deliver light with lower production cost. However, the efficiency and stability of perovskite-based LEDs still need to be improved with worldwide research teams continuously working on the material. Helio Display Materials, a spin-off company of Oxford University and Cambridge University, is pushing perovskite LEDs commercialization with the IPs from both universities. (Image: Helio Display Materials) Helio Display Materials aims to leverage its technology to enhance color perform...

Research team consisting of electrical and computer engineers at the University of Virginia and University of Texas-Austin has developed an avalanche photodiode that achieved record performance that could transform receiver components for LiDAR. The breakthrough was published in Nature Photonics on May 18, 2020, under the title “Low-noise high-temperature AlInAsSb/GaSb avalanche photodiodes for 2-μm applications.” Researchers said the low-noise, 2-μm avalanche photodiode can achieve eye-safe high-power operation. The team used the novel optical ...

Advanced LED technology enables innovative automotive lighting including adaptive driving beam (ADB) by which each single LED pixel can be control independently for a wider range of applications. Based on similar concept, Japanese LED maker Stanley proposed an innovative way to combine laser and MEMS (Micro-Electro-Mechanical System) mirror, which allows high precision light and sensing function. (Image: Stanley) Stanly uses blue laser light which can be reflected with MEMS mirror and converted into white light with phosphor to build a headlight system. V...

To enhance UVC disinfecting applications, a new study proposed an alternative transparent conductor that deliver UV spectrum to solve the issue of low efficiency of current UV LED technology. The research provide the approach of using SrNbO3 as an electrode material for UV LED. A joint research group with scholars from The Pennsylvania State University, University of Minnesota from the U.S. and The University of Tokyo and Tohoku University in Japan published their study in Communications Physics suggesting a solution of UV-transparent electrode to de...

The U.S. lighting company Acuity Brands announced its strategic partnership with Ushio America. The two companies entered into an alliance agreement that Ushio will supply Acuity Brands with its Care222® UV disinfection module, which generate far-UVC light which is safe to human skin but capable of inactivating viruses and bacteria on indoor surfaces. Under the agreement, Acuity Brands will have an exclusive right to use Ushio’s far-UVC disinfecting module for general illumination uses throughout North America and non-exclusive right for the worldwide m...

Worldwide researchers continues to explore the possible ways to defeat the novel coronavirus. UV light is considered one of the effective ways to reduce the risk of COVID-19 infection as it deactivates microorganism in air, water and on the surface. A new study from Colorado State University (CSU) found that UV light can also diminish SARS-CoV-2 virus in blood. Researchers at CSU used existing technologies to show that exposing the coronavirus to riboflavin and UV light reduces pathogens in human plasma and whole-blood products. The result was published on M...

The COVID-19 pandemic spurred the awareness of disinfection and stimulated demands for related applications based on UVC radiation. UVC LED products have thus become a hit across the world. However, the safety issue of UV light also become a concern as direct exposure of UV radiation is harmful for people and animal. Aim to improve safety of UV disinfection and expand application opportunities, researcher across the world are searching for method to make UV light less harmful. And far-UVC seems to be the solution. A new research carried out by the Univers...

German research institute the Ferdinand-Braun-Institut (FBH) and Technische Universität Berlin (TUB) have developed UV LEDs emitting UV light that is safe to the skin. The achievement has yet commercially available but will be tested in medicine research centers in Germany. The FBH and TUB worked under the framework of their Joint Lab GaN Optoelectronics and created LEDs that deliver far UV light at wavelengths around 230 nm and provide more than 1 mW output power. According to the FBH, the light does not penetrate into the living layers of...

Researchers at the University of Tokyo published a research demonstrating their achievement of the highest mobility among thin films of tin dioxide. This high mobility could allow engineers to create thin and even transparent tin dioxide semiconductors for use in next-generation LED lights, photovoltaic solar panels or touch-sensitive display technologies. Tin dioxide can be made into a semiconductor. A research team from the Department of Chemistry at the University of Tokyo demonstrated the highest mobility in a thin film of tin oxide ever achieved. The improved mobility no...

Korea’s LiDAR sensor startup company, SOS LAB, announced that it has secured series A+ investment of a total of US$8 million starting from a lead investment from Korea Development Bank (KDB), bringing the company’s total capital raised so far to US$ 14 million. Despite a decline in general economic activities due to COVID-19, SOS LAB successfully attracted the investment and it has now unveiled its plans for the commercialization of LiDAR. (Image: SOS LAB) SOS LAB disclosed ML-1, the product which mounted the aforemention...

Some LEDs made from perovskite emit light over a broad wavelength range. To further explain the feature, scientists from the University of Groningen inspected some cases and proposed new explanation which may help other scientists to design perovskite LEDs capable of broad-range light emission. The study was published in the journal Nature Communications on May 11, 2020. Low-dimensional (2D or 1D) perovskites emit light in a narrow spectral range and are therefore used to make LED of superior color purity. However, in some cases, a broad emission spectrum at energy le...

Apple was reported last week that it has planned to invest US$334 million for the new facility in Taiwan, located in the Longtan section of Hsinchu Science Park. The new factory is believed to focus on Micro LED and Mini LED technologies which Apple aims to apply in its new products. Taiwanese companies Epistar and AUO as well as other companies of the Mini LED and Micro LED supplier chains are reportedly supporting Apple’s products adopting the next-gen display technologies. Apart from getting closer with its partners, another major reason for Ap...

Researchers at the lab of Tobias Kippenberg at Ecole Polytechnique Federale de Lausanne found a new way to implement a parallel FMCW LiDAR engine by using integrated nonlinear photonic circuitry. They coupled a single FMCW laser into a silicon-nitride planar microresonator, where the continuous wave laser light is converted into a stable optical pulse train due to the double balance of dispersion, nonlinearity, cavity pumping and loss. The study has been published in Nature. Coherent laser ranging, also known as frequency-modulated continuous wave (FMCW) LiDA...

LiDAR technology has a wide range of applications, from autonomous driving, industrial automation, to the latest people flow control and social distance maintaining. And now, a group of scientists uses the technology to monitor activity of mosquito. An international research team published a study on Science Advances demonstrating its approach to use LiDAR technology to remotely monitor mosquito activity. Through LiDAR technology, they found the “rush hour” of mosquito in a southeastern Tanzanian village and by identifying the most active time of mosquito, it...

Canada-based Elevate Farms announced its agreement with North Star Agriculture for an initial build-out commitment of US$ 10 million to bring vertical farming and ‎‎‎production of leafy green vegetables, to northern Canada including Yukon and other isolated northern territories. Elevate and North Star have agreed to develop and construct a series of automated large-scale facilities (CEF Facilities) dedicated to the mass ‎production of leafy green plants implementing, among other techniques, the use of patented ‎LED lighting, moving grow ‎boxes a...

Recently it is reported that Apple is planning to invest around US$ 334 million for its new facility in Taiwan to push development in Micro LED and Mini LED display technology with its local partners Epistar and AUO. Many believe that the iPhone maker will intensify its display technologies including Mini LED and Micro LED with the mature LED supply chain in Taiwan covering wafer manufacture, chip production, chip testing and display fabrication. LEDinside covered in November 2019 that Apple has almost finished the construction of the new facility in ...

The Metropolitan Transportation Authority (MTA) in New York City is using UV lamps to sanitize subway cars and buses for COVID-19 infection prevention, reported New York Daily News. MTA announced that it will close the subway system from one to five a.m. every day since May 6, 2020 to deep clean and disinfect all the trains and buses to combat coronavirus. One of its disinfecting solution is using UV lamps to deliver UVC radiation for diminishing bacteria, viruses and other pathogens in the cars. (Image: Pixabay) The disinfection project applying U...

A research team at Seoul National University (SNU) successfully grew a Micro LED array on a 100 nm-thick sapphire nano-membrane. The results were published on Scientific Reports on May 5, 2020. According to the published paper, the team, led by Euijoon Yoon of the Department of Materials Science and Engineering of SNU, designed the sapphire nano-membrane array to grow an array of multi-faced Micro LEDs sized 4 μm × 16 μm. With the method, the Micro LED chip singulation does not need to go through plasma etching process, leading to a better ext...

Compound Photonics (CP), a U.S.-based AR/MR microdisplay solutions developer, announced the launch of its digital backplane which enables Micro LED technology builder for high definition microdisplay subsystem integration. CP re-engineered its market-ready LCoS backplane technology into an innovative constant current drive configuration for Micro LED pixels based on its 0.26-inch (~3 μm pixel) 1080p display format. The technology can be integrated with Micro LED displays to accelerate the manufacture process by bonding the devices to a backplane driven by C...

Florida State University (FSU) researchers have discovered a novel structure for organic-inorganic hybrid materials that shows potential for more efficient technologies. Professor of Chemistry and Biochemistry Biwu Ma and his team have published a new study in the journal Science Advances that explains how they created a hollow nanostructure for metal halide perovskites that would allow the material to emit a highly efficient blue light. Metal halide perovskites are a material that have shown great potential for photon-related technologies such as light-emitting diodes and l...

A research team at the King Abdullah University of Science and Technology (KAUST) announced their achievement in manufacturing InGaN red LEDS with a peak wavelength of 665nm as well as improved light output power and external quantum efficacy. Their achievement is believed to support more efficient process of full color Micro LED display development. (Image: KAUST) One of the challenges of Micro LED display is producing red LEDs with GaN, which is considered almost impossible, according to Kazuhiro Ohkawa, leader of the research group. Red colo...

Mojo Vision, the Invisible Computing company who is developing smart contact lens with Micro LED technology, announced by the end of April its additional funding raised in Series B-1 investment round. The found will be used to gear up the development of Mojo Lens, the smart contact lens to realize AR applications. (Image: Mojo Vision) Mojo Vision has raised US$51 million in the B-1 round, bringing the total funding to date to more than US$159 million. The latest round of funding was led by New Enterprise Associates (NEA) with participation from top stra...

Graz University of Technology (TU Graz) in Austria has develop a new technology by using LED instead of laser as light sources to make metal component by 3D printing. The research project is named Selective LED-based Melting (SLEDM). SLEDM uses high-power LEDs as light source to melt metal powder for 3D printing manufacturing. The technology is similar to selective laser melting (SLM) and electron beam melting (EBM), in which metal powder is melted by means of a laser or electron beam and built up into a component layer by layer. However, by replacin...

In a report covered by Driving Vision News (DVN) in December 2019, we found that Valeo’s PictureBeam system was tested. The adaptive driving beam (ADB) system was co-developed by Valeo and Cree with a resolution of nearly 4000 pixels to deliver road marking functions. ADB system with high resolution is a trend for automotive lighting. Many automotive component manufacturers have teamed up with LED companies to develop LED array solutions based on Micro LEDs. The PictureBeam system created by Valeo and Cree is one of them. The two companies demonst...

A research team consisting of material science and nanotechnology specialist and virologist is working on developing a protective film based on nanostructure as a novel mask material to diminish virus and protect healthcare professionals from infection. Sudipta Seal, an engineer specializing in material science and nanotechnology, initiated a project with Griffith Parks, a virologist at College of Medicine of University of Central Florida (UCF) to create nanostructures that can capture the virus and then trigger a chemical reaction using UV light to destroy it. The scienti...

The Korea Institute of Science and Technology (KIST) announced a new development of a multi-functional luminescent film that can visualize near-infrared light through wavelength conversion that converts near-infrared light to visible light for innovative applications. Dr. Kwon Seok-joon at the Nanophotonics Research Center of KIST and Ko Doo-hyun, a professor of applied chemistry at Kyung Hee University jointly led the team to develop the flexible, transparent and washable film which can convert infrared light into visible light. The results were published in the ...

A new study conducted by the Fraunhofer Institute for Building Physics (IBP) in Germany showed that full spectrum LED products deliver better visual comfort compared to standard LED products. Full spectrum LEDs are usually categorized as those emitting light similar in composition to natural sunlight. The soon-to-be published Fraunhofer IBP study incorporated a technical comparison of the LED spectra to daylight spectra, a literature review addressing the effect of light spectra on humans, and a psychological study with 83 persons in an office setting. Each par...