Did you ever wonder what an HOB LED display is? Or GOB LED display? Well, GOB got popular from several years ago. And from this year, HOB has become well-known in the LED display industry. In this article, I will share their differences.
What is an HOB LED Display?
HOB, or High-temperature Overmolding Bonding, is the latest technology in the LED display industry. It is mainly applied in fine pitch LED display products.
HOB LED display modules go through a fully automated molding process. The 360-degree glue application better protects the LED surface. And the HOB LED display can protect against collision, water, dust, static electricity, etc.
With HOB technology, it is less likely to have issues such as inconsistent brightness or dark lines between the LED panels. Every time when we make HOB LED displays, I’ve noticed that they look more seamless, and there is less moire pattern than SMDs.
What is a GOB LED Display?
GOB (Glue on Board) LED display technology is another protective method that has been around for a bit longer. In GOB LED displays, the LED modules are coated with a glue-like material that protects the display from dust, moisture, and physical damage. However, this process is typically done at room temperature using manual or semi-automated processes, which makes it more labor-intensive than HOB.
Comparison Between HOB and GOB LED Display:
Both technologies are designed to offer protection, but their features differ significantly:
| Comparison Items | HOB LED Display | GOB LED Display |
| Production Process | High-temperature automated | Normal temperature, manual/semi-auto |
| Curing Time | 1.5 hours | 24 hours or longer |
| Low Temperature Resistance | -20℃ | -5℃ |
| Glue Fracture | No glue fracture after some time | Slight glue fracture after some time |
| Brightness Loss | 5% | 30%~70% |
| Anti Moire Stripe | It can prevent moire pattern. | Slightly |
In addition to the differences mentioned, HOB technology can also be used for outdoor LED displays and is fire-resistant. HOB LED display modules have a textured surface. They offer excellent visual performance with great color consistency. HOB also helps improve color shading issues. For minor shading, it can be completely resolved, while severe shading can be improved by up to 60%. Even exposed solder points on the LED pins can be improved by up to 80%.
Conclusion:
Both HOB and GOB LED displays have their unique strengths. If you need something robust in indoor and outdoor environments and have enough budget, HOB is your best bet. It offers top-notch protection and visual performance, even in harsh weather conditions. On the other hand, if you’re looking for a more cost-effective option that still provides good durability, especially for indoor use, GOB can meet your need.
If you are looking for a suitable solution for your LED screen project, please contact us.
