COB display is a classification of LED screens, which is significantly different from traditional LED screens in many aspects. The following is a detailed comparison of the two, hoping to provide some help to everyone.
一、Technical Implementation
COB LED display:
Using Chip on Board (COB) technology, the LED light-emitting chip is directly integrated and packaged on the PCB substrate to form an overall packaging structure.
No bracket and lens structure, the process is more streamlined, reducing the steps in the production process and improving production efficiency
LED display:
Usually adopts SMD (Surface Mounted Device) packaging technology, LED light-emitting chips are packaged in small devices with pins or solder balls
Then they are installed on the PCB board through surface mounting technology. The process is relatively complicated, including patch, reflow and other processes
二、Display effect
COB LED display:
Due to the high integration of the light-emitting chip, the fineness and color saturation of the picture are significantly improved.
Under the condition of micro-pitch (below 1.0mm), the display effect is far better than that of traditional LED display
Using surface light source to emit light, it effectively suppresses moiré, reduces glare, improves visual comfort, and is suitable for long-term close-up viewing.
LED display:
It also has the characteristics of high brightness and high definition, but the display effect under micro-pitch conditions is slightly inferior to COB display, and the pitch is less than 1mm.
Point light source emission may produce moiré and glare, affecting visual comfort.
三、Protection and durability
COB LED display:
The fully enclosed design enhances dust and water resistance and reduces the risk of light falling.
Excellent protection performance, with waterproof, moisture-proof, anti-collision, anti-oxidation, anti-static, anti-vibration, anti-blue light and other characteristics.
The failure rate is very low, the maintenance cost is relatively low, and the dead light rate is several times lower than that of LED display.
LED display:
The lamp beads are exposed, which is more susceptible to external impact or environmental factors, which may cause the lamp to fall off or be damaged.
It requires more maintenance and is relatively complicated to repair.
It is more susceptible to damage in harsh environments or when subjected to strong vibrations.
四、Other features
COB LED display:
Faster heat dissipation and longer life: Heat is dissipated directly through the PCB board, with low thermal resistance and high heat dissipation efficiency, which helps to maintain long-term stable operation and extend the service life of the display.
Wide viewing angle: When viewed from different angles, the color and brightness are consistent, which is particularly important for large public displays and interactive applications.
LED display:
Strong flexibility: The size and shape can be customized, and can be spliced into arc-shaped, spherical and other special-shaped screens to meet creative designs
Good scalability: Easy to expand and upgrade, add modules and control equipment, you can expand the scale and improve performance.
Intelligent control: Support remote control of computers, mobile phones, etc., can update content and adjust parameters in real time, and realize timed switching and brightness self-adjustment.
In general, COB display has significant advantages over LED display in terms of display effect, protection and durability, while LED display performs better in flexibility, scalability and intelligent control. In actual applications, we should choose the appropriate type of display according to specific needs and scenarios.
