In order to respond to the rapid change of the market, the LED industry has adjusted the organization and strategy direction in recent years. While continuously improving the lighting efficiency and the low cost of the killing price, it has been trying to enter the niche market to improve the profitability. At present, the mainstream applications of LEDs include mobile phones, large -sized backlight, lighting and vehicle growth momentum, and more and more LED factories have invested in niche market applications such as UVLED and IRLED. The LED industry is sluggish, and the emergence of the informal field applications will be stored in Chao Chao. In 2015, the global LED market output value is estimated to be about 14.52 billion US dollars, and the annual growth rate (YOY) fell to 2 %. Excluding negative and long -term situations during the fourth quarter settlement. It is stored in the current period that the LED industry has entered the current period. It is estimated that the global LED market compound annual growth rate (CAGR) in the next five years may only be about 3 %. Accelerating the elimination of invalid production capacity, forcing some manufacturers to withdraw from the market. As for the LED niche market applications such as Infrared, IR) LED, Ultraviolet (UV) LED, and are divided into UVA, UVB, UVC according to their different wavelengths, are relatively opportunities to drive demand growth. Taiwan factory cells, research crystal photovoltaic, and Nikkiso (Nikkiso) also expressed their views on the development of UVLED and IRLED in the conference. IRLED: Xie Mingxun, deputy general general general general general of the high crystal electricity R & D center of high crystal electricity research and development center, pointed out that UVLED and IRLED belong to the niche market. Although the current demand is not large, the profit is better. In terms of IRLED, the price of a single price is about the same. 8 to 16 times of size Blu -ray LED. Crystal has the UV to IR series spectrum LED chip. Among them, IRLED is mainly used in the two major categories of Security monitoring and sensor. In the field of security monitoring, applications include network surveillance cameras with IR850NM and 940NMLED, as well as Nightvision systems set in car headlights. The driving field can reach 150 to 200 meters, and it is also clearer. Xie Mingxun further stated that the night vision system should be the largest of IRLED demand. The sensor field is widely used. In addition to the proximitySensor module and wearable device for smartphones, it also includes the promising biosensors (BIO-Sensor) applications, such as detecting heartbeat With blood oxygen, the former uses IR530NM, 660nm, 940NMLED, and the latter uses IR660NM and 940nmled. In addition, for iris recognition applications that need special wavelengths, crystal electricity also has IR810NMLED to correspond, which is quite advantageous in competition. UVLED: Customized solutions cut into industrial and medical fields. According to analysis, the UVLED market penetration rate in 2014 reached 15 %, and the market size was about 122 million US dollars. The above; in the UVLED market, UVA accounts for 90 % of the proportion, and its largest application is UVCing. Wei Zhihong, chairman of Yanjing Optoelectronics, explained that the UV curing application covers medical adhesion, electronic part assembly, printing, coating, etc.;. He said that because these applications are different, UVLED is more difficult to replace traditional UV lights, and it must be built to replace the whole system. Wei Zhihong said that UVALED has been applied in the industrial field and has become popular. It is expected to grow significantly in the next two years, but he also admits that although UVLED gross profit is relatively high, he still has to overcome many obstacles to the market. UVALED is a highly customized market and is service -oriented. It must provide a comprehensive solution for customers. Single design cannot correspond Compromise. Another important market in UVLED is the Deepultraviolet (DUV) LED applied in the fields of sterilization, medical care, resin sclerosis and other fields. The Duvled product wavelength of the Nikkiso (Nikkiso) is between 250nm and 350nm. The Japanese machine installation manager CyrilperNot said that after years of continuous improvement of DUVLED products, the current 285nm products have increased from 30MW to 50MW at 350mA current. Water purification equipment module. The threshold of the unsightly light field is high, and the breakthrough challenge to promote industrial growth. Looking at the development of the unsight light field in LEDs, it is stored in IrLED and UVLEDs. However, because the threshold for entering this field is not low, it is not possible to enter the market smoothly without launching the right product. Taking IRLED for biosensions as an example, it must pass a series of tedious certification and take a long time. It also has to be imported by the brand manufacturer, so the opportunity is relatively difficult to evaluate; for most of the customized UVLEDs, manufacturers cannot be unable to use it. Like in the past, the cost of low -scale economic pressure must be adjusted to quickly change the corporate structure to quickly change according to the customized orders. It is still that the LED market will still have business opportunities in the future, and I look forward to breaking through innovation of related technologies and becoming a driving force for the next market to continue to grow.

According to Liu Wenke of the Agricultural Environment and Sustainable Development Research Institute of the Chinese Academy of Agricultural Sciences, the accumulation of self -toxic substances in the closed -end soil -free cultivation, while the TiO2 photocatalytic degradation of the root secretions and rice shell degradation in the nutritional solution of the nutrient solution Products, solar light contains only 3%of ultraviolet light and facility coverage materials such as glass filtering by more than 60%, and cannot be applied in facilities; the low temperature widow photos of the vegetables in the anti -season of vegetables make it low and poor stability, and cannot meet the facility vegetable factory Demand for production. Countries around the world are actively studying the feasibility of using UVLED as a group training light source. In terms of monochrome light on the cultivation of seedlings, research has found that red light UVLED can promote the growth of seedlings in orchid groups, but the chlorophyll content, stems and roots are slightly lower than the fluorescent lamp than fluorescent lamps. Change the light quality by using UVLED to supplement monochrome red light or far red light, and then control the length and growth of potato groups to cultivate seedlings. Studies believe that the excessive extension of the fry stems in the red light UVLED and the chrysanthemum group causes the stem and poles to be fragile, and other important indicators have also decreased. Generally, it is not conducive to the normal growth and development of the plant. The main reason is that monochrome red light has led to the unbalanced distribution of light energy available in the system, which inhibits the growth of the stems. Studies have found that all genomocal grape group cultivation under the pure red light UVLED processing is significantly longer than that of fluorescence light treatment, but the chlorophyll content and the number of leaf pores are based on monochrome Blu -ray UVLED, red red, red red, red red, red red, red red, red red, red red, red red, red red, red, red, red, and red. Light UVLED processing is the lowest. This shows that the height of the plant plant is directly related to the root ratio. The red light of the long wavelength is necessary for the built -up of the grape root.

The technical characteristics of the LED lamp beads of the New Year's Eve (1) Connect the chip and aluminum alloyultra -heat guide material composite substrate (radiator) into one, and use a unique year -long power LELED lamp bead classification D light bead packaging technology. The chip is concentrated directly on the heat dissipation matrix to make the heat resistance between the chip and the heat dissipation substrate. Based on the thermal governance system of bionicism, the power -resistant model of the first -layer structural heat resistance model was established for the first heat dissipation of the LED lamp chip, which was set up. (2) Night -year -old power LED lamp chip is characterized by the two -layer structure of the cooling and integrated heat dissipation of the heat source chip. As the temperature of the heating source increases, the air flows in the porous radiator. The air convection provides a flow channel, and the heat is automatically emitted to ensure that the chip is normal in the safe use temperature range. Advanced thermal conductivity and heat -to -flow system ensure the excellent heat dissipation effect, which further improves the lighting efficiency of the chip. Putting the chip (45mil 45mi1) for integrated packaging (concentrated in a small area) to obtain a high -facial light source with high light effect, with the characteristics of high light flux density, high total light flux, low glare (3) Today, the above technology is used, and the above technology is used. The "Chip's Heading Integrated (Two -layer Structure) Mode) Mode" has been prepared. In addition, this year's power LED lamp bead car needs to strengthen the heat dissipation of electric fans the previous year, which is difficult to meet the needs of market -oriented application. The car light industry uses LED light source to manufacture the limitations of the car the previous year.

UV curing ink (ultraviolet curing ink) is called UVLED ink. Ultraviolet light is printed on the ink layer, which can be immediately widely used in a complete cured ink. Packaging and Printing. So what are the main advantages of UVLED inks, the following is a list of everyone. The main advantages of UVLED inks are: 1. Soluks without solvents; 2. Fast drying speed and low energy consumption; 3. Good luster, colorful color; 4. water resistance, solvents, wear resistance. 5. The light -induced agent of UVLED curing ink is a kind of optical compound. After absorbing the light, it becomes a free radical, and the energy is transferred to the light -sensitive molecules or optical connectors, so that the UVLED ink reacts the optical reaction. 6. At present, UVLED ink has become a relatively mature ink technology, and its pollutant emissions are almost zero. Except for no solvents, UVLED ink is not easy to paste, the network is clear, the ink is bright, the chemical resistance is good, and the province is provincial. For more information, please log in to the official website of Tianhui

When designing UVLED drivers, the appropriate driver method should be selected according to the requirements of power size, application occasion, driving performance, and economy. If the driving source performance does not match UVLED expected. This article summarizes several commonly used driving methods. UVLED constant voltage driver UVLED constant voltage source is defined as the output voltage is constant when the allowable load is constant, and it will not change with the change of the load (output current). In fact, the voltage output of constant voltage sources still has a certain ripple. It can be seen from the UVLED Voldemort characteristics that UVLED work in a non -linear area. The tiny voltage changes will cause a large current of UVLED. , High accuracy to the drive source. Figure 1 shows the local I-V curve chart of a UVLED. Figure 1 UVLED driver UVLED constant current source is characterized by the constant output current, which does not change due to changes in the load (output voltage). The constant current driver is generally divided into linear constant current and switching constant current. The switching constant current is widely used in high -power UVLED surface sources and wire light sources due to high efficiency and good stability. Figure 2 shows the basic frame diagram of a constant current driving solution. Figure 2 When designing the UVLED driver scheme, regardless of the use of constant voltage or constant current driver, in order to improve the reliability of the system, various protection measures are needed, such as overload protection, over temperature protection, etc.