"GOB display screen" refers to the LED display screen that adopts the Glue on Board technology. This technology significantly enhances the performance and reliability of the display screen by injecting a special transparent adhesive layer on the surface of the LED module (covering the lamp beads and PCB board). Its main advantages include:

Outstanding protective performance (core advantage) :
Anti-collision and pressure-resistant: The glue layer forms a solid protective shell, effectively preventing physical damage to the lamp beads or solder joints caused by bumps, squeezing, or foreign object impacts (such as tools, flying stones, balls) during transportation, installation, and use, significantly reducing the dead lamp rate.
Waterproof and moisture-proof: The glue layer completely seals the lamp beads, solder joints and PCB board, isolating them from the air and effectively preventing water vapor, salt spray, dust and corrosive gases from entering. This makes the GOB screen particularly suitable for use in harsh conditions such as outdoor (especially in rainy and coastal areas with high salt fog), semi-outdoor, and industrial environments (dust, oil stains), significantly enhancing the water and moisture resistance level (usually reaching IP65 or even higher).
Dust-proof and stain-resistant: The surface is smooth and flat, not prone to dust accumulation, and easy to clean (can be wiped directly), keeping the screen clean and beautiful for a long time.
Higher reliability and stability
Due to the significant enhancement of physical and environmental protection capabilities, the dead light rate and failure rate of GOB screens are much lower than those of traditional SMD LED displays. This reduces the later maintenance costs and workload, and prolongs the service life of the display screen.
After the glue cures, it has a stress buffering effect on the lamp beads and solder joints, and can resist certain vibrations.
Improve display effect:
Good surface flatness: The glue fills the gaps between the lamp beads, making the screen surface smoother and flatter, eliminating the "dark areas" or "unevenness" between the lamp beads in traditional SMD screens, and visually closer to an integrated plane.
Reduce glare and enhance contrast: The specially formulated glue can reduce the reflection of ambient light, lower glare, and present better contrast and picture clarity even in bright environments.
Wide viewing Angle: The high-transparency glue layer usually does not significantly affect the light-emitting Angle of the LED beads, and can maintain or even slightly increase the horizontal and vertical viewing angles of the display screen.
Color consistency: A smooth surface and uniform adhesive layer facilitate the even diffusion of light, improving color consistency when viewed from different angles.
Good heat dissipation performance (high-quality glue required) :
High-quality GOB glue usually has high thermal conductivity. It not only protects the LED beads but also more effectively conducts the heat generated by the led beads to the PCB board, and then through the PCB board to the metal base shell or heat dissipation structure of the module. This helps to lower the working temperature of the LED beads, extend their lifespan, and ensure the stability of brightness.
Easy to clean and maintain
The smooth rubber surface makes the screen surface less prone to stains. Daily cleaning only requires wiping with a soft cloth, and maintenance is simple.