On April 14, 2020, Apple was granted 54 patents by the U.S. Patent and Trademark Office and one of the patent is related to sensors that might be added to Apple Watch in the future to detect the environment of water and the makeup of water. The new patent issued to Apple, titled “Portable electronic device as health companion,” describe the function of the incorporating sensors for identifying the water based on the detected property and initiate actions of the wearable device to send notifications to the user. For example, the Apple Watch would be able to warm...

Researchers from the Technical University of Eindhoven (TU/e)in the Netherlands and Technical University of Munich (TUM) in Germany reported the development of a light-emitting, silicon-germanium (SiGe) alloy. The achievement may open a new way for integrated chip function. The revolutionary results were published in ‘Nature,’ on April 8, 2020. The research team made germanium and alloys from germanium and silicon with a hexagonal crystal lattice which has a direct band gap to emit light. The concept of hexagonal silicon was proposed by Prof. Erik Bakk...

Micro LED as the innovative display technology is expected to replace TFT-LCD and OLED display in the near future with its high performance including high resolution, high contrast, self-emission, low power consumption and long life. However, the technology still encounter several bottlenecks. The most challenging one for researchers and manufacturers is the notorious mass transfer process which requires bonding RGB LED chips to display backplane accurately and efficiently. The task also needs to tackle the issues caused by different chip materials such as breakable...

Worldwide technology builders are accelerating UVC LED developments for disinfecting applications aiming to prevent the spread of coronavirus. Lately we have seen many new products and technologies debuted and here comes a new UVC LED innovation from the German research center, Fraunhofer Institute for Optronics, System Technology and Image Evaluation, which is part of the Applied System Technology AST branch (IOSB-AST). Researchers built a microwave-like equipment which include two separate UVC LED modules with 10 UVC LEDs embedded respecti...

A KAIST team developed a novel wearable strain sensor based on the modulation of optical transmittance of a carbon nanotube (CNT)-embedded elastomer. The sensor is capable of sensitive, stable, and continuous measurement of physical signals and shows potential for the detection of subtle human motions and the real-time monitoring of body postures for healthcare applications. The study “Wearable Strain sensors Using Light Transmittance Change of Carbon Nanotube-Embedded Elastomers with Microcracks” was published in Applied Materials & Interfaces in ...

A joint research conducted by Japan’s Kobe University and Ushio, the Japan-based LED component maker, has provided proof for the first time in the world that direct and repetitive illumination from 222nm UVC radiation, which is a powerful sterilizer, does not cause skin cancer. This suggests that 222nm UVC is also safe for human eyes and skin. This technology is expected to have a wide range of antibacterial and antiviral applications in medical facilities and daily life. These research results were published online in Photochemistry & Photobiology, titled &l...

Poro Technologies (Porotech), is a spin-out from the University of Cambridge focusing on GaN material technology. The company has closed a GBP 1.5 million (US$ 1.86 million) seed round investment. According to the report of Cambridge, the investment will support Porotech to develop a pilot plant in Cambridge and its first major products. The seed round was co-led by Cambridge Enterprise, the commercialization arm of the University of Cambridge, and IQ Capital Partners, with the additional participation of Martlet Capital and a syndicate of angel investors from ...

Seoul Viosys announced that its Violeds technology has been adopted by China-based automotive component supplier Yanfeng for in-vehicle UV disinfection. Adopting Violeds technology, the Yanfeng’s in-vehicle UV sanitizer can detect for absence of occupants before activating lamps for a period of 10 minutes that can sterilize the cabin including cockpit, seating and steering wheel. The sterilization lamp is embedded in the ceiling for maximum coverage and allows for sterilization of the harmful bacteria and viruses inside. (Violeds technology adopted by Yanfeng for ...

A research team consisting of scholars from Sweden, UK, China and the Czech has developed a perovskite LED with both high efficiency and long operational stability. The result has been published in Nature Communications, titled “Perovskite-molecule composite thin films for efficient and stable light-emitting diodes.” Perovskites are a large family of semiconducting materials that have aroused the interest of scientists around the world. Their special crystal structure means that they have excellent optical and electronic properties, while they are both easy and ...

Seoul Viosys and Sensor Electronic Technology, Inc. (SETi) announced that that they have succeed in achieving 99.9% sterilization of coronavirus (COVID-19) in 30 seconds. Tests were conducted with the research group of Korea University by using a compound semiconductor Violeds technology that is being mass-produced. As COVID-19 spread throughout the world, SETi and Seoul Viosys devoted resources to show how Violeds technology can directly sterilize the virus. The goal has always been to provide technology for a cleaner world, and this includes minimizing the...

Since last year, manufacturers of LEDs, panels, and systems across the globe have displayed Micro LED-related products at major international exhibitions. Applications include automotive and indoor fine-pitch displays. This has kick started a Micro LED trend across the world. At the beginning of this year, leading industry players including Taiwan’s ITRI, Japan’s Sony, and Korea’s Samsung, LG, and Seoul Semiconductor have all presented the latest Micro LED technology at CES 2020. As one of the major focuses in the display industry, Mi...

Applied Optoelectronics, an optical products manufacturer, announced the release of a high power and narrow linewidth laser specifically designed for LiDAR applications, particularly for automotive use. Current automotive LIDAR systems are based on near infrared lasers, however these lasers are not eye safe and therefore are limited in terms of emitted power. This power limitation, in turn, restricts the effective sensing range of the LIDAR system. AOI’s laser operates at longer wavelengths near 1550-nm where eye-safe emission limits are much higher and therefore...

To address the wafer size mismatch and to tackle the yield challenge in Micro LED production, ALLOS has applied its unique strain-engineering to show outstanding uniformity and reproducibility for 200 mm GaN-on-Si epiwafers. Additionally the company reports about its success on the roadmap to 300 mm. Yield plays a crucial role to make Micro LED displays successful. It has a direct impact on the manufacturing complexity and cost. To enable the needed cost reductions, large wafer diameters are essential. This is particularly true for Micro LED applications in which...

A team with researchers at Seoul Viosys and University of California Santa Barbara (UCSB) published a study focuses on features of Micro LEDs as their size goes smaller at 1 to 10 μm. External quantum efficiency (EQE) of Micro LEDs usually reduces when Micro LEDs get smaller, which becomes an issue for Micro LED technology builders. To further understand the relation between EQE and chip size, a research team of Seoul Viosys and UCSB focus on Micro LEDs down to 1 μm to compare the EQE trend for blue and green InGaN Micro LE...

The spreading coronavirus epidemic did not stop industry players from progressing advanced technology development. Chinese companies recently reported new orders and subsidies for equipment to push Micro LED technology development. (Image: LEDinside) The biggest LED wafer and chip producer Sanan Optoelectronic reported that its subsidiary Sanan Semiconductor has received subsidies from the Quanzhou government in March for purchasing equipment. The amount of the subsidies was RMB 143 million (US$ 20.16 million). Sanan Semiconductor has formed partnership with...

Wearable devices with AR/VR applications are regarded as the next generation consumer electronics that might replace smartphones. Currently, the technology is more applied in industrial or professional areas as the devices are still relatively bulky and expensive as they require complex integration of cameras, image processing solutions, power and more. To tackle the issue, Nvidia developed a new technique for gaze tracking solution, the fundamental technology for VR wearable devices as agreed by many leading industry players, reported VentureBeat. Researchers at Nvidia used...

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. But a new research published in Nature Scientific Reports by researchers at Rensselaer Polytechnic Institute presented a material that emits light when heated that appears to exceed the limits set by that natural law. The new material discovered by Shawn Yu Lin, lead author and a professor of physics at Rensselaer Polytechnic Institute, defies the theory proposed by Max Planck in ...

A team from Yokohama National University in Japan believes they have developed a method to obtain a sensor by taking advantage of slow light and published the results in the Optica, a journal published by The Optical Society, on January 2020. A small-sized silicon photonics chip that can be used for non-mechanical beam steering and scanning. (Image: Yokohama National University) In modern LiDAR sensors, many of the systems are composed of a laser source; a photodetector, which converts light into current; and an optical beam steering device, which directs the light...

AIXTRON announced that Konka Group has ordered multiple AIX G5+ C and AIX 2800G4-TM MOCVD systems to build its own volume production of GaN-based (gallium nitride) and AsP-based (Arsenide-Phosphide) Mini- and Micro LEDs. Konka, which recently announced its plans to enter the North American consumer electronics market in 2020, established its Micro LED initiative as a joint venture with Chongqing Liangshan Industrial Investment. The company also increase an investment of over US$210 million for Micro LED development. Most recently, ...

UV light exposure not only kills microorganism, it can also assess meat quality. A research team with scientists of Sechenov University in Russia, Macquarie University and University of New South Wales in Australia proposed a method incorporating UV light emission to classify meat into standard quality categories. The study was published in Journal of Biophotonics under the title “Autofluorescence excitation-emission matrices as a quantitative tool for the assessment of meat quality.” Conventionally, to evaluate the quality of beef, specialists pay attentio...

A multi-departmental research team at Taiwan’s National Chi Nan University (NCNU) collaborated with local famers and developed a LED lighting system for water bamboo (Zizania latifolia) cultivation to improve the growth with a new design of LED lenses. The advanced technology tackled the existing issues and proved to benefit the harvest. The results were published Applied Sciences in February 2020, titled “Optimized LED-Integrated Agricultural Facilities for Adjusting the Growth of Water Bamboo (Zizania latifolia).” The optimized LED...

Micro LED technology builder VerLASE introduced a novel mass transfer technique for Micro LED display production based on its “Large Area Assembly Platform” (LAAP), which the company revealed in June, 2019. With similar concept, the company transfer the technology into a simpler, semiconductor-fab compatible solution based on Photo-Mechanical Actuation (PMA). According to VerLASE, the solution uses a novel formulation comprising of fab compatible chemistries and transfer stamp architecture in a unique way to deterministically pick-up a large ...

Mitsubishi Electric announced that it has developed a compact LiDAR solution incorporating a micro-electromechanical system (MEMS) that achieves an extra-wide horizontal scanning angle to accurately detect the shapes and distances of objects ahead in autonomous driving systems. The new LiDAR solution irradiates objects by laser and uses a dual-axis (horizontal and vertical) MEMS mirror to scan for the reflected light, generating three-dimensional images of vehicles and pedestrians. Mitsubishi Electric expects this compact, low-cost solution to contribute to th...

A new type of light emitting textile may enable innovative wearable applications. Researchers at the University of Windsor in Canada published their development in the journal Matters, revealing a stretchable, lighting emitting fabric based on typical ultrasheer pantyhose coated in a thin gold film. (Image: Matters) The new development tackled some of the limitations of existing light-emitting fabrics and use the textile structure as an integral part of the wearable device design. With effective power sources, the light emitting fabric could be further developed into more fun...

Scientist at University of California, Berkeley (UC Berkeley) have created a blue LED from a new semiconductor material halide perovskite, overcoming a major barrier to employing these cheap, easy-to-make materials in electronic devices. Published in Science Advances on January 24, the study demonstrates the technology breakthrough of applying the unstable material as halide perovskite changes with temperature, humidity and the chemical environment and their optical and electronic properties are thus disrupted. Making semiconductor diodes that emit blue light has always b...

Researchers of the Korea Institute of Science and Technology (KIST) develop a new material for blue light emitting LEDs which can replace gallium nitride (GaN). According to the report of BusinessKorea, the new technology breakthrough might enable Korea to reduce the dependence of Japan on LED materials. Published on Scientific Report on March 04, 2020, the study titled “Intrinsically p-type cuprous iodide semiconductor for hybrid light emitting diodes,” demonstrate the single crystal epitaxy of cuprous iodide (CuI) film grown on Si and sapphire s...

Display technology continues to advance and display companies has pushed their development in market expansion and technology improvement. OLED, Mini LED and Micro LED are currently the major technologies that players in the display industry focus on. BOE, as the leading display company in China, has also invest great amount of resources in OLED and Mini LED. Lately, BOE replied to its investors about the progress in Mini LED. BOE demonstrated its Mini LED technology at CES 2020. The company is able to provide solutions achieving ultra-thin, h...

A research team at University College London published its development of an antimicrobial coating which kills bacteria when exposed to light. The creation can be used to coat phones screen, keyboards, and the inside of catheters and breathing tubes for prevent the spread of diseases in hospitals and healthcare institutes. The research, published today in Nature Communications, is the first to show a light activated antimicrobial coating successfully killing bacteria in low intensity, ambient light (300 Lux), such as that found in wards and waiting rooms to stop healthcare-associ...

SiLC Technologies, the developer of integrated single-chip FMCW LiDAR solutions, announced that it closed US$12 million in seed funding led by Dell Technologies Capital. Decent Capital, ITIC Ventures, and several prominent angel investors also participated in the funding round. SiLC will use the funding to scale its R&D and operations to develop its frequency modulated continuous wave (FMCW) silicon photonic 4D+ Vision Chip platform. SiLC demonstrated its integrated FMCW chip and long-range LiDAR resolution at CES 2020. The company al...

Electroninks, the supplier of particle-free silver, gold, and platinum conductive inks and pastes, announced the strategic alliance with Enjet Inc., the ultra-high resolution printing expert to support advanced manufacturing of display, touchpanel, and packaging products. The two companies will leverage their capabilities and resources to demonstrate conductive ink and printing equipment products.    Electroninks and Enjet will work together as a dynamic team to supply conductive ink printing at <10µm in several markets including Micro LED, Mini LED, EM...