LED Display COB Package And GOB Package Difference And Advantage Comparison

With the application of led display more widely, people put forward higher requirements for product quality and display effect, in the packaging link, the traditional SMD technology can not meet the application needs of some scenarios. Based on this, some manufacturers change the packaging track, choose layout COB and other technologies, and some manufacturers choose to improve SMD technology, of which GOB technology belongs to the iterative technology after the improvement of SMD packaging process.

So with GOB technology, can led display products achieve a wider range of applications? What will be the future market development trend of GOB? Below, let's take a look at it!

What is COB packaging technology?

• Ultra-thin and light: according to the actual needs of customers, the thickness of the PCB board from 0.4-1.2mm summer, so that the weight is reduced to at least 1/3 of the original traditional products, which can significantly reduce the structure, transportation and engineering costs for customers.
• Anti-collision and anti-pressure: COB products are directly packaged in the concave position of the PCB board, and then packaged with epoxy resin adhesive curing, the surface of the lamp point is raised into a surface, smooth and hard, anti-collision and wear-resistant.
• Large viewing Angle: COB package uses a shallow well spherical light, the viewing Angle is greater than 175 degrees, close to 180 degrees, and has a better optical diffuse color muddy light effect.
• Strong heat dissipation: The COB product is to package the lamp on the PCB board, and the heat of the wick is quickly transmitted through the copper foil on the PCB board, and the copper foil thickness of the PCB board has strict process requirements, and the gold sinking process will hardly cause serious light attenuation. Therefore, there are few dead lights, which greatly extends the life of the led screen.
• All-weather excellent features: triple protection treatment, waterproof, tide, rot, dust, electrostatic, oxidation, UV effect is outstanding;
• To meet the all-weather working conditions, the LED screen can still be used normally in the temperature difference environment of minus 30 degrees to 80 degrees.

What is GOB packaging technology?

GOB package is a kind of packaging technology for LED lamp bead protection, using advanced transparent materials to package PCB substrate and LED package unit, forming effective protection, it is equivalent to adding a layer of protection in front of the original LED module, so as to achieve high protection function. To achieve LED screen waterproof, moisture-proof, anti-impact, anti-bump, anti-static, anti-salt spray, anti-oxidation, anti-blue light, anti-shock and other ten anti-effect.

Through the GOB process, the granular pixels on the surface of the original LED panel have been transformed into the overall flat panel, which realizes the transformation from the point light source to the surface light source, the product is more uniform, the display effect is more clear and transparent, and the lLED screen can be greatly improved (both horizontal and vertical can reach nearly 180°), effectively eliminating the Moore pattern. Significantly improve the product contrast, reduce glare and glare, reduce visual fatigue.

What's the difference between COB and GOB?

The difference between COB and GOB is mainly different in process, although the surface of COB package is flat, the protection is better than the traditional SMD package, but the GOB package increases the gluing process on the surface of the screen, making the stability of its LED lamp beads better, greatly reducing the possibility of dropping the lamp, and the stability is stronger.

Therefore, on the whole, COB and GOB which is good and there is no standard, because there are many factors to judge whether a packaging process is good, the key is to see what we value, is to value the efficiency of LED lamp beads or value protection, so each packaging technology has its advantages, can not be generalized.

When we actually choose, whether to use COB package or GOB package should be considered in combination with their own installation environment and running time and other comprehensive factors, and this is also related to the cost control of led screen and the difference between the display effect.