The difference between COB and SMD
SMD and COB are two packaging methods for LED displays.
There are similarities but also differences between them. LEGIDATECH explains it in detail.
1. Process introduction SMD is known as surface mounted devices, meaning surface mounted devices.
The light emitting chips (wafers) are encapsulated into individual lamp beads, which are then soldered to the PCB board to form a unit module, and finally spliced together to form the whole LED screen