Chip on board (COB) technology is a method of directly mounting red, green, and blue chips onto a printed circuit board (PCB).Packaging the bare chips directly onto the PCB enables a much
higher chip density while creating a flat uniform LED surface. The combination of three-color values allows the chips to achieve a higher color gamut and replicate true-to-life imagery.
In other words, with COB LED technology, the number of LEDs that can be placed in any given area of a display is way higher than with other LED packaging approaches, such as Surface Mounted Diode (SMD) and Dual in-line Package (DIP). Generally speaking, COB is commonly used for small pixel pitch requirements like below P1.56.
