Pixel microcirculation system comparison
Each pixel of the COB panel is a well-sealed microcirculation system after encapsulation, and its electrical and heat dissipation functions are realized by the internal circuit of the gel. It is a truly closed system. No matter how good the sealing performance of each lamp bead of the traditional LED display panel is, its electrical function and heat dissipation function require that the LED chip circuit inside the bracket and the pins outside the bracket are correspondingly connected, and the external pins are ultimately To be soldered to the soldering pad of the lamp position on the PCB board, it is actually a true open system.
Quantitative Macro System Comparison
To compare and evaluate the reliability of a macro system by quantifying the macro system, it is necessary to study and compare the number of factors that affect the reliability of the system. Under the same other conditions, the fewer the factors that affect the reliability, the greater the reliability. high.
2K display system COB display panel can reduce at least 8847360 influencing factors than traditional LED display panels. The 2K display system has 2211840 pixels, and the traditional LED display panel has more than 8 million factors that affect the reliability.
The 4K display system COB panel can reduce at least 35,389,440 influencing factors compared with the traditional LED display panel, and the traditional LED display panel has more than 25 million influencing factors.
The 8K display system COB panel can reduce at least 141,557,760 influencing factors compared with the traditional LED display panel, while the traditional LED display panel has more than 140 million influencing factors.
Heat dissipation performance comparison
The heat dissipation performance directly affects the life of the LED product. The positive and negative poles of the LED chip of the COB display panel are directly connected to the circuit on the PCB. The heat conduction path is the shortest, there is no intermediate medium, and the thermal resistance is the smallest. It is the most perfect one. Thermal optimization technology. The positive and negative poles of the LED chip of the traditional LED display panel are first connected to the pins of the bracket through the circuit inside the bracket, and then soldered to the circuit of the PCB. This is an indirect heat dissipation method. The heat conduction path is long, and the intermediate medium is indispensable. The resistance is high.
Protection performance comparison
The contrast of protective performance is directly reflected in whether the product can reach the civilian level. The COB display panel is a technology with the best protection level so far. It is mainly reflected in the following two points: 1. Anti-collision ability is the first in the industry to provide the positive pressure index and lateral thrust that a single lamp bead can withstand. Indicators, so far no technology can surpass. 2. All-weather capability COB display panel lamp beads have IP65 protection capability when they are sealed, whether it is indoor or outdoor applications. Because outdoor applications are in addition to rain and humidity, the environmental temperature and the temperature of the screen are affected by the aging impact of the protective colloid, the corrosive effect of chemically polluted air on the glue protective layer of the LED display panel, the technical process capability and the detection of process indicators method.
