[Part 1: Overview] COB Strip: A new choice for environmentally friendly lighting COB lamp belt, full name Chip-on-Board LED, is a new type of efficient, environmentally friendly, energy-saving lighting products. It uses the production process of LED chip directly installed on the flexible circuit board, with high brightness, high color reproduction, energy saving and high efficiency, and is widely used in retail display, home lighting, commercial lighting and other fields. [Part 2: Market Analysis] The COB lamp belt market continues to grow, and the commercial application field continues to expand In recent years, with the increasing attention of consumers to environmental protection and energy saving concepts, the COB lamp belt market has shown a trend of continuous growth. According to the data of the market research institute, the COB lamp strip market size is expected to grow at a compound annual growth rate of more than 20% in the next five years. At the same time, in commercial applications, such as shopping malls, supermarkets, factories, etc., COB lamp strips have also been more and more widely used. [Part 3: Technical Principles] Decrypt COB lamp strip: technical principles, luminous principles and color performance The technical principle of the COB lamp belt is to install the LED chip directly on the flexible circuit board, and then connect the circuit board to the external power supply through welding. Its luminous principle is that when the current passes through the LED chip, the chip will emit light. In terms of color performance, the COB lamp strip can present a variety of colors and color temperatures, and has excellent color reproduction. [Part 4: Application Scenarios] Application of COB light belt in indoor, outdoor and architectural decoration fields COB lamps are widely used in indoor, outdoor and architectural decoration fields because of their high brightness, uniform lighting, energy saving and high efficiency. In the indoor aspect, COB light belt can be used for home lighting, shopping mall display, etc. In the outdoor aspect, it can be applied to urban night lighting, outdoor advertising, etc. In the field of architectural decoration, COB light strips can be used to create a unique atmosphere and beauty. [Part 5: Industry Prospects] The market prospect of COB lamp belt is broad, and the future development forecast and challenge coexist With the continuous improvement of consumer awareness of environmental protection and the state's attention to energy conservation and emission reduction, it is expected that the COB lamp market will have greater room for growth. However, the development of the industry will also face challenges such as competitive pressure from home and abroad and the continuous update of technology. In the future, the development of the COB lamp industry will need to strengthen technological innovation, improve product quality and increase brand promotion to achieve sustained and healthy development.

The luminous principle of the COB lamp strip is that when the voltage at both ends of the LED chip is greater than its threshold, the LED chip will be on and emit photons outward, that is, produce visible light. The luminous principle of LED chip mainly involves the knowledge of quantum mechanics, energy band theory and thermodynamics. Specifically, when the semiconductor material in the LED chip is excited by the outside world, it produces free electrons and hole pairs, which move and compound in the band structure, and when the electrons and holes are combined, energy is released and accompanied by the emission of light. The wavelength (color) of light is related to the semiconductor material, and different materials correspond to different wavelengths. In addition, the luminescence of the LED chip is also affected by factors such as current and temperature. When the current added to both ends of the LED chip is larger, the brightness of the LED chip will also increase. At the same time, when the LED chip works at high temperatures, its performance and life will be affected, so heat dissipation measures need to be taken to reduce the temperature of the LED chip. Finally, the luminous principle of the LED strip needs to take into account the impact of packaging technology. COB light belt uses COB technology to integrate multiple LED chips on a substrate, and forms a whole after packaging. This packaging method can improve the LED brightness, color reproduction and light uniformity and other performance indicators.

The performance improvement of COB technology for LED lamp strips is mainly reflected in the following aspects: Improve reliability: COB technology uses a full-flip light-emitting chip and solderless packaging process, the chip is directly bound to the PCB board, eliminating the requirement for lead bonding connection, reducing welding points, thereby improving the reliability of the LED light strip. In addition, the COB lamp belt has ultra-high protection, anti-collision, shock-proof, waterproof, dustproof, anti-smoke, anti-static and other characteristics. Enhanced display effect: COB technology can achieve high contrast and high brightness, black field is blacker, brighter, higher contrast, support HDR digital image technology, static and high dynamic picture quality fine perfect. At the same time, the COB lamp belt has an ultra-small point spacing, which can meet the needs of high-density cloth lamps. Improve integration: COB technology can integrate multiple LED chips on a substrate, and form a whole after packaging, improving the integration of the LED light strip. This makes the LED strip more compact and smaller, saving space. Simplify the product process: COB technology uses the cluster bus technology, making the LED board and the application board using pins to facilitate interconnection, eliminating the use of chips must go through welding and other processes, reducing the difficulty of product use, simplify the product process. At the same time, it makes the product easier to replace and enhances the product usability. Improve the luminous efficiency: Because the COB technology can integrate multiple LED chips together, the luminous area of the entire lamp belt is increased, thus improving the luminous efficiency of the LED lamp belt. At the same time, due to the binding and mounting on both sides of the PCB board, the volume of the LED application module is reduced and the application space of the LED module is expanded. In summary, COB technology plays an important role in improving the performance of LED strips.