LED technology hotspots that cannot be missed

Reading: Under the background of technological innovation driven, LED companies are showing the strength of China's wisdom to the world. CSP, UV LED, QD LED, graphene, silicon substrate ... You have to focus on the hot spots.

Graphene is a two-dimensional crystal with one atomic thickness composed of carbon atoms that are separated from the graphite material and are arranged in a special structure. It is the thinnest and highest strength material known in nature at present, and its breaking strength is 200 times higher than that of the best steel.

The peculiarity of graphene is that it is “zero penetration”, and all gases and liquids cannot penetrate, making graphene products have the ability of “not inserting needles and water pouring in”. Not only that, graphene also has super-adsorption, and has a very good light transmittance, and is suitable as a raw material for transparent electronic products.

Graphene is not only a very high-tech carbon material with a very wide application potential. As high-tech materials, graphene will bring revolutionary technological advances in the traditional and emerging fields such as the semiconductor industry, photovoltaic industry, lithium-ion batteries, aerospace, military, and new generation displays.

UV LED

The market demand is weak, the LED industry presents product homogeneity, and price competition is fierce. Finding a high-margin market segment is the only way for LED companies. The UV LED market, as one of the blue ocean markets, has an inestimable prospect.

UV LED is mainly divided into UV-A (320 ~ 400nm), UV-B (280 ~ 320nm) and UV-C (200 ~ 280nm) three categories, respectively, used in curing devices, detectors, etc., medical / biological fields Therapeutic apparatus and analytical instruments in the field of sterilization. UVA currently accounts for 90% of the UVLED market.

Quantum Dot LED

Quantum dots are the basic material for the emission of quantum dot LEDs (QLEDs). There are two kinds of light-emitting forms: one is the use of a GaN-based LED as a light conversion layer, which effectively absorbs blue light and emits light of a wavelength that is precisely adjustable in the visible light range; and secondly, the electroluminescent light is used to coat it. The light is emitted between the thin film electrodes to realize the light emission of the QLED.

At present, quantum dot LED (QLED) light sources are also born in the laboratory. And more predictions show that the quantum dot LED will light up the world in the next 15 years.

The silicon substrate silicon substrate technology is a core technical route that is completely owned by the Chinese people, and it has taken the lead in the internationalization of industrialization, forming a three-footed market structure for sapphire, silicon carbide, and silicon-based semiconductor lighting technology solutions.

In the future, driven by cost advantages, the production of nitrided LED chips will shift from sapphire or SiC substrates to silicon substrates. As technology continues to advance, silicon substrates will become a major technology route for LED products that significantly reduce production costs and increase automated production.

Led plant growth lamp LED plant light helps to shorten the growth cycle of the plant, because the light source of this lamp is mainly composed of red and blue light sources, adopting the most sensitive light wave band of the plant, and the red light wavelength is 620-630 nm and 640-660 nm. Blue wavelengths use 450-460nm and 460-470nm. These light sources allow plants to produce the best photosynthesis, and the plants get the best growth state. Experiments and practical applications have shown that, in addition to supplementing plants with light in the absence of light, they also allow plants to promote multiple growth processes. The differentiation of lateral branches and buds accelerates the growth of roots, stems and leaves, accelerates the synthesis of plant carbohydrates and the synthesis of vitamins, shortening the growth cycle.

With the rapid increase in global demand for organic foods, vigorous development of organic cultivation is an opportunity for more and more producers.

Visible Light Communication (LiFi)

Visible light wireless communication (called LiFi - Light Fidelity) is the use of fast light pulses to wirelessly transmit information. It is completely feasible to encode information in the light according to different rates, and has the same advantages as optical fiber communication, high bandwidth, and high speed. LED-based Li-Fi can achieve a data transfer rate of 10 Gb/s, which can improve the upper limit of Wi-Fi 7 Gb/s data transmission rate. Li-Fi technology brings a high level of security because visible light can only travel in a straight line, so only talent on the line of light can intercept information.

Intelligent lighting does not touch the switch by hand, just lightly press the remote control, and the light can be automatically switched on and off.

Advantages of wireless network type It is understood that applying modern technologies such as PC, IC, and IT in switching technology can add new functions such as wireless remote control and stepless brightness adjustment to lighting fixtures, and intelligent lighting control technology has emerged . At present, in the market, from the perspective of the composition of lighting control systems, there are bus types, power line carrier types, and wireless network types. From the perspective of technology development, wireless network technology has unique advantages. In recent years, it has been rapidly developed in the IT field and has become a new hot spot in the IT industry and the semiconductor industry.