LED industry "price war" is becoming increasingly fierce, how should enterprises find a way out? This forces us to think about technology. Summarize 12 new LED technologies and applications to see which is your dish?
"Standard LED" that can completely cover the wavelength of visible light
The Japan Institute of Industrial Technology announced that, together with the chemical industry of Japan and Asia, LED light sources covering the entire visible range have been developed. Using a number of LED elements and fluorescent materials with different central wavelengths, the two mechanisms have developed a light source with sufficient light intensity in the whole visible light range (380-720 nm). Because this kind of light source can be used as the standard light source for evaluating the illumination appliances of solid components, the development result is named "standard LED". It was revealed that before this achievement, there was no standard light source that could be used for high-precision spectroscopic measurement of solid component illuminators and cover the whole visible light range.
In view of the fact that the "standard LED" can be used in the field of LED manufacturing and development, it can evaluate the high-precision characteristics of solid component lighting devices, and it is expected to contribute to accelerating product development and improving performance. In this regard, Japan and Asia chemical industry said that it will promote the production preparation of the "standard LED" in the future. Japan Institute of Industrial Integration said it would further improve the spectral precision measurement technology used in the development of "standard LED", and research and develop the evaluation technology of surface light source and ultraviolet and infrared light source.
Single Layered Columnar LED Generates Single Pixel White Light
White LEDs are either coated with white phosphor or mixed with red, green and blue LEDs. Researchers at the University of Taiwan do not think so. They are developing a technology that can produce white light in a single pixel (pix) from a single tiered-column LED. The basic concept is that the quantum wells are embedded in the nano-rods of GaN and In GaN, which are grown on the same substrate and arranged very closely.
According to the researchers, those LED arrays are fabricated by the pulse growth method of organic metal chemical vapor deposition (MOCVD), which can achieve better luminescence performance than the traditional process technology.。 At the same time, the research team is also developing surface plasmas to enhance luminescence, enhance efficiency and avoid droopeffect, and promote high-speed visible light communications by increasing frequency bandwidth modulation.
New Design of Polymer OLED Lighting Products
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UV LED Technology Solar Charging Water Purification Device
Kenneth, Professor of Water Resources Engineering, Lund University? "At present, 750 million people worldwide are unable to access clean water. Providing safe drinking water is a huge challenge and one of the most important goals of mankind," Pelson said. In view of this, he and an engineer jointly founded Watersprint, an environmental protection company in 2013, and developed a water purification device using solar charging and UV LED technology, which provides much more water than the smart grid can cover.
It is understood that this technology is through the combination of UV LED technology and intelligent software and Wi-Fi to purify water quality. Its 12-volt system is very efficient and can operate in a single solar panel. Solar cells can also charge themselves, so the portable device can also be used in rural areas without electricity. The compact portable solar battery station has been installed in rural Bangladesh. The first water purification device was installed in October last year, and nine more have been delivered to Bangladesh.
Apple VR Head Display or Micro LED Display
In May last year, after Apple bought LuxVue, one of the leading companies in the micro-LED display technology industry, it was widely believed that LuxVue would make a breakthrough in display technology. How Apple will use this technology has become a popular topic, but there is no clue as to where it will be. Apple has previously announced that in 2017, the iPhone screen supply chain will be replaced by OLED, and the Apple Watch screen will be replaced by OLED. Where the miniature LED display is located in the map of the Apple Empire undoubtedly seems more complicated and confusing.
It is speculated that the micro-LED technology will probably be used in "direct-cast display", including in the field of augmented reality and virtual reality, such as head display. EXALOS CEO said that for the next generation of display, micro-LED will be the key component to improve efficiency and brightness. The ideal way to use LED mini-display is to use it in wearable system, because LED mini-display has the characteristics of small space, low energy consumption, high contrast and high brightness. Although the future of this advanced technology is fascinating, it will surely appear in some consumer and professional products in the near future.
Ski suit with 7000 Philips LED decorative lights
In a recent video, a group of skiers, dressed in clothes decorated with 7,000 LED lights, slid down a slope illuminated by a color spotlight. Someone pointed out that this is the brilliance of skiing brought by high-tech lighting. It is reported that the 12-minute microfilm was filmed in the Golden Alps Resort in British Columbia and Alaska. In order to illuminate the whole huge slope of the mountain, the staff used eight 4,000-watt headlights and other small lights. Unmanned aerial vehicles and fixed camera were used to photograph skiers sliding down the slope.
In fact, it's a microfilm designed to promote Philips'Ambilight TV. Each piece of Golters cloth on the ski suit is sewn with thousands of LED lights, which are waterproof and connected to candy-sized batteries. The short film took five weeks to shoot and cost 9,000 pounds, at minus 15 degrees Fahrenheit. Despite the high cost, Philips hopes to promote its superiority in color streaming TV lighting technology and show the world how light can radically change people's experience.
Silicon Substrate Project won the National Prize for Technological Invention
It is understood that there are three international LED lighting technology routes: sapphire substrate, silicon carbide substrate and silicon substrate GaN-based LED technology (namely "silicon substrate LED technology"). The first two routes are called the mainstream technology route and the aristocratic route in turn, while the core invention patents are monopolized by Japan and the United States respectively. The significance of the birth of LED technology on silicon substrates lies in creating a new path, enabling China to have the third international LED lighting technology route, breaking through barriers with a new light source attitude, and getting rid of patent disputes.
The fabrication of high-efficiency GaN-based LED on silicon has always been the goal of academic efforts. However, due to the large lattice mismatch and thermal mismatch between silicon and gan, the cracking of epitaxial films, poor crystal quality and low light-emitting efficiency caused by opacity of silicon substrates have not been solved for a long time. The GaN-based LED route on silicon substrates is almost sentenced to death. In fact, IBM in the United States was developing silicon-based LED technology 30 years ago, but "halfway" announced the abandonment. It is in this case that Chinese researchers "pick up" the technology.
Installation of innovative lighting devices in the American Gallery of Art
Entering 2016, American tourists will soon be able to visit the Brandy River Gallery under a new lighting system. According to reports, in order to enhance the visitors'experience, all six pavilions of the museum will be equipped with new tracking lighting system of energy-saving LED lamps. In terms of greeting visitors and providing the best ornamental effect of artworks, lighting is a key factor in creating the atmosphere of the exhibition hall. The new LED lighting system will help improve the flexibility of lighting for different works of art in the Brandy River Gallery galleries, including classic paintings by the Wise family of artists and delicate paper paintings by American painter Winslow Homer.
It is alleged that the new LED lighting system can significantly improve the flawless brightness of the lights, and even make tourists like the first time to see these paintings. With the help of better color reproduction provided by LED lights, visitors can truly appreciate the subtleties and tonal range of each artwork. In addition, this kind of lamp can help to reduce energy consumption and carbon emissions of art galleries. The whole lighting project ended from January 4 to mid-March this year. This revolutionary project is funded by Crystal Trust. With this subsidy, the gallery will also create a new voice guide system.
Two-way Lane Model of LED Lamp Designed by Chinese Students
Recently, a two-way lane model of LED lamp invented by a senior high school student in Huizhou has become a star of the school's science and technology festival. In this design, several LED light belts are used instead of double yellow lines to distinguish the opposite direction of the road on both sides, so that the width of the opposite Road on both sides can be freely controlled during peak period, so as to make full use of road resources. The model has six lanes, and the two lanes in the middle are separated by three LED lights. Normally, the middle LED light source opens, with three lanes in each direction. During the peak period, the idle reverse lane is turned into a part of the congested forward lane by turning the lights on and off, thus widening the congested road and increasing the load capacity of the forward lane.
According to reports, when changing lanes, the lights on the side of idle lanes should be turned on first, and the driver should be reminded to change lanes as soon as possible by signs, so that the road near the original double yellow line can be emptied. After a period of time, the light belt in the middle of the original will be closed, so that the vehicles on the crowded roads can change lanes into the empty lanes. The university's general technology teacher said that the student replaced the huge investment with very little reconstruction cost to realize road widening and re-planning and alleviate road congestion during peak hours. And praise the design is very creative, theoretical and practical.
The yield of Hami melon planted in plant factory can reach 8 times that of greenhouse.
Teachers and students from the Department of Molecular Biotechnology, Changhua Daye University, have developed plant factories to try to grow various vegetables and fruits with LED light source technology and environmental temperature control. And recently announced the results: Hami melon, tomatoes and other crops planted by the plant factory, in which Hami melon is juicy and sweet, and the yield can reach 8 times that of greenhouse planting. The president of Daye University said that in the future, he hoped to transfer technology to farmers and innovate agriculture. At the same time, the school also developed the characteristics of each crop growth, and used LED as light source to save costs.
The associate professor of Molecular Biotechnology Department of the University said that Hami melon was traditionally cultivated in open air or greenhouse. Although it was skilled, it could not be produced all year round because of the weather. In addition, Hami melon had many diseases and insect pests, uneven quality and pesticide residues, so it was attempted to grow in plant factories. By using LED light source technology and environmental temperature control, the Hami melon not only does not need pesticides at all, but also has an average weight of more than 2 kilograms per plant, a sugar content of more than 16 degrees, a plant can retain three fruits, a plant life span of up to one year, and can be harvested for five consecutive periods.
Smart ceiling fan supporting Apple HomeKit protocol
Hunter Fan recently launched two smart ceiling fans on CES, which support Apple's HomeKit protocol in addition to smartphone control. Both Symphony and ignal smart ceiling fans support Wi-Fi connections and HomeKit platforms, and can be voice controlled through Apple's Siri voice assistant. Apart from App remote control, it can also control conditions through HomeKit's geographic fence or scene, so that users can set the ceiling fan to close automatically after leaving the door.
In addition, these two products can also be integrated with other smart home products supporting HomeKit platform, including thermostats to form a complete control platform for smart home. For example, when smoke detectors detect smoke, ceiling fans automatically start to help air circulation, and activate their own LED lighting system. It is reported that Symphony and ignal are 54 inches in diameter, with built-in high-quality motor and LED lighting functions.
Smart "footpads" with alarm clocks and lighting
This is a practical and interesting invention and application called Ruggie's "alarm clock footpad". When you use the footpad lightly, the lamp on the footpad will light up and be used as night light, showing the current time. After 20 seconds, the light will go out automatically. With this function, when you go to the toilet at night, you can put your foot on the mat to provide weak lighting. At the same time, in view of the problem of most people staying in bed, the mattress will also shout, and only when they really sit up and put their feet on the mattress for three seconds will they stop.
The material of the foot pad is a memory foam that can slowly rebound. It feels comfortable when stepping on the floor and does not have to worry about the cold weather on the floor when getting up. Users can either charge with USB or connect to their computer via USB, and drag any song into the "footpad" folder to set it as an alarm. The principal designer of the pad is a Hong Kong native named Winson Tam, who spent eight months with his team developing the "wisdom" product.
