COB Vs COG LCD Technology
In our daily interactions with devices like smartphones, tablets, and laptops, we encounter Liquid Crystal Displays ( LCDs ) ubiquitously. However, behind their seamless integration lies a fascinating realm of LCD technology, with COB (Chip-on-Board) and COG (Chip-on-Glass) emerging as two prominent methodologies. Let's delve into their key disparities to comprehend their distinct advantages and applications . COB LCD Technology: COB, or Chip-on-Board, represents a lighting technology utilizing light-emitting diodes (LCDs). Unlike conventional Surface Mount Device (SMD) techniques where beads are soldered onto the PCB, COB involves coating the silicon placement point with thermally conductive epoxy resin on the substrate's surface. Here, the LCD chip is affixed to the interconnected substrate via conductive or non-conductive adhesive, establishing electrical connectivity with the PCB board through lead bonding. This modern packaging method reduces rel...