Superior Durability : COB has a higher level of anti-collision, moisture-proof, dust-proof, electrostatic discharge (ESD), and the surface protection level is IP54.
High Contrast Ratio: The contrast ratio of LED displays is an important parameter that determines how clear, vivid, and colorful the image is .COB can reach 15,000 to 20,000 static contrast ratio and up to 100,000 high dynamic contrast ratio.