1. The theoretical advantages of COB packaging:

　　1. Design and development: Without the diameter of a single lamp body, it can be made smaller in theory.

　　2. Technical process: Reduce the cost of the bracket and simplify the manufacturing process, reduce the thermal resistance of the chip, and achieve high-density packaging.

　　3. Engineering installation: From the application side, the COB LED display module can provide LED display manufacturers with easier and faster installation efficiency.

　　 2. The COB packaged LED display has the following characteristics:

　　1. Ultra-lightweight: According to the actual needs of customers, PCB boards with a thickness of 0.4-1.2mm can be used to reduce the weight to at least 1/3 of the original traditional products, which can significantly reduce the structure, transportation and engineering costs for customers.

2. Anti-collision and compression: COB products directly encapsulate the LED chip in the concave lamp position of the PCB board, and then encapsulate and cure it with epoxy resin. The surface of the lamp point is convex into a spherical surface, which is smooth and hard, resistant to impact and wear. .

　　3. Large viewing angle: the viewing angle is greater than 175 degrees, close to 180 degrees, and has a better optical diffuse color haze effect.

4. Strong heat dissipation ability: COB products encapsulate the lamp on the PCB board, and quickly transfer the heat of the wick through the copper foil on the PCB board. Moreover, the thickness of the copper foil of the PCB board has strict process requirements, plus sinking gold The craftsmanship hardly causes serious light attenuation. Therefore, there are few dead lights, which greatly extend the life of the LED display.

　　5. Wear-resistant and easy to clean: The surface is smooth and hard, impact-resistant and wear-resistant; there is no mask, and it can be cleaned with water or cloth when there is dust.

　　6. Excellent all-weather characteristics: It adopts triple protection treatment, which has outstanding effects of waterproof, moisture, corrosion, dust, static electricity, oxidation, and ultraviolet; it can meet all-weather working conditions, and the temperature difference environment of minus 30 degrees to minus 80 degrees can still be used normally.

　　 COB packaging technology has many of the above advantages, so that LED display manufacturers see opportunities, many companies have invested in this field, and there are already finished products on the market.