Cold welding of LED displays is an important part of the LED display manufacturing process.
It involves the process of firmly connecting the mounted PCB board (printed circuit board) with other components, but this process does not usually refer to a specific "cold welding" technology, because traditionally welding involves high temperatures to melt the solder to connect metal parts.
However, in the manufacture of LED displays, we focus more on the quality of welding and the stability of the connection, and the term "cold welding" may describe this process in a broad sense, or refer to the low heat or high-efficiency heat dissipation design used in specific technologies (such as Shijue Guangxu's ColdLED cold screen technology) to reduce the thermal impact of the welding process.
The following is a detailed introduction to the welding process in the LED display manufacturing process, as well as the relevant technical features involved in Shijue Guangxu's ColdLED cold screen technology:
LED display welding process
1. Assembly and welding:
- Assemble the mounted PCB board with other components (such as connecting wires, frames, etc.).
- Use a welding machine to weld the assembled parts to ensure the stability of the connection. In this process, parameters such as welding temperature, time and pressure need to be precisely controlled to ensure welding quality.
2. Process requirements:
- Avoid overheating during welding to prevent damage to LED chips and other sensitive components.
- Ensure uniformity and consistency of welding to improve the overall performance of the product.
Welding-related features in Shijue Guangxu ColdLED cold screen technology
Although Shijue Guangxu's ColdLED cold screen technology does not directly mention "cold welding" as a welding method, it achieves low heat and efficient heat dissipation through a series of innovative designs and technical means, which indirectly affects the thermal management of the welding process:
1. Efficient heat dissipation design:
- Make the heat dissipation more balanced by optimizing the innovative layout of PCB design.
- A complete reference plane is established on the wiring to effectively reduce the line impedance and reduce heat generation.
2. High-efficiency LED chip:
- Adopt RGB flip-chip common cathode LED chip, which has high luminous efficiency and good heat dissipation, reduces the thermal stress caused by chip heating, and indirectly reduces the demand for heat during welding.
3. Fine driver IC:
- Adopting high-precision process technology as low as 60nm, the power consumption of the driver IC is greatly reduced, reducing the heat generation of the overall system.
4. High-performance power supply:
- High-performance power supply developed jointly with suppliers, with working efficiency of more than 92%, significantly reducing energy loss and heat generation.
In summary, although the term "cold welding" in LED display manufacturing may not directly correspond to a specific welding technology, the ColdLED cold screen technology of Shijue Guangxu achieves low heat and efficient heat dissipation through a series of innovative designs and technical means, thereby reducing the impact of thermal stress throughout the manufacturing process (including welding) and improving product stability and life.
These technical features are of great significance to improving the performance and user experience of LED displays.