Product
Speaking of LED display screens, everyone must be familiar with them. They are almost everywhere, whether it is the exterior walls of high-rise buildings in bustling cities, the door signs of small shops on the street, or various indoor display screens, large-size display screens in conference rooms, etc., you can easily see their presence. In indoor environments, LED display screens are often used for advertising, information release, stage performances and many other aspects; while outdoors, they are indispensable display devices for large-scale commercial activities, sports events, transportation hubs and other places. However, although LED display screens are so common, many people may be confused when it comes to the COB technology of LED display screens.
COB LED display screen refers to an LED display screen completed by COB (Chip On Board) packaging. This packaging technology is significantly different from the traditional common SMD (Surface Mount Device) surface mounting technology. In SMD surface mounting technology, the light-emitting chip is usually placed on a bracket first, and then fixed on the PCB board by welding, etc., while COB technology is completely different. COB technology is to directly paste and package the light-emitting chip on the PCB board, which is a highly integrated and sophisticated process. It achieves complete sealing of the module, so that the internal components are not exposed, thus presenting a smooth and hard screen effect. This screen not only has good visual effects, but also has excellent protection performance, which can effectively resist the erosion of external dust, water vapor, etc., greatly improves the stability and service life of the display screen, and provides a more reliable display solution for various application scenarios.
The advantages of COB display screens include:
The surface is cured with high-quality epoxy resin, which not only has good wear resistance and corrosion resistance, but also effectively prevents damage to internal components caused by external impact. Each light-emitting diode and other electronic components are precisely installed and firmly sealed on the printed circuit board to ensure that they will not loosen or fall off due to vibration or bumps. This design allows the product to remain stable even during severe shaking or long-distance transportation, avoiding the phenomenon of falling lights due to shaking or any possible structural damage.
Low thermal resistance is also a significant advantage of this product. Thermal resistance is an important indicator to measure the degree of resistance of an object to heat conduction. A smaller thermal resistance means that the heat encounters less resistance during conduction and can be transferred more efficiently. The PCB board of this product uses special materials and processes to further reduce the thermal resistance value, allowing heat to be dissipated at a faster rate. Because of this, the heat dissipation effect of this product is better. Even when it runs continuously for a long time and generates a lot of heat, it can maintain a relatively stable temperature environment to avoid performance degradation or failure caused by overheating, providing users with a more stable and reliable use experience.
More compact spacing and excellent picture quality: COB display screens abandon the limitations brought by SMD packaging, and there is no physical barrier between its light-emitting chips. Within a unit area, it can accommodate more display pixels, which greatly improves the clarity of the picture. Every detail is clearly discernible, whether it is subtle text or complex image texture, it can be accurately presented. At the same time, the color presentation is also fuller and more delicate, and the rich color levels seem to bring the real world to the screen vividly, allowing users to immerse themselves in a realistic and gorgeous visual experience.
Since its introduction to China, COB (Chip On Board) technology has gone through a four-year development period. During this period, not only has it made significant technological progress, but it has also quickly gained recognition in the market. From the initial exploration stage to its widespread application in multiple fields today, the development speed of COB technology is remarkable. It effectively improves production efficiency and product reliability by directly packaging LED chips on circuit boards, and also provides convenience for subsequent maintenance.
As an innovative technology in the field of LED small-pitch displays, COB displays are gradually leading the industry to a higher level. With people's increasing requirements for visual experience and the emergence of various new application scenarios, traditional LED displays can no longer meet the needs. COB displays are widely regarded as the direction indicator for the development of future LED small-pitch displays due to their excellent color reproduction capabilities, higher brightness adjustment range and lower energy consumption. It is expected that in the next few years, with the advancement of related material science and the optimization of manufacturing processes, COB displays will occupy a more important position in the LED display industry and drive the entire industry towards a more intelligent and efficient direction.