Introduction: Seoul Semiconductor is engaged in the manufacturing and packaging of light emitting diodes (LEDs), with a complete range of products suitable for the automotive, lighting, home appliance, mobile, signage, and backlighting unit (BLU) markets. Our company is the fifth largest LED supplier in the world, with over 10000 patents and extensive LED technology and production capabilities, such as the "nPola" deep UV LED and the world's first commercially produced "Acrich" AC LED.