Indoor LED Display is a king of LED Display which is used in indoor environment. Most indoor LED Displays adopts SMD technology. A SMD pixel consists of red, green, and blue diodes mounted in a single package, which is then mounted on the driver PC board. The single diodes are smaller than pinhead and are set very close together. Indoor LED Display usually has a minimum brightness of 600 candelas per square meter. It is sufficient for corporate and retail applications, but under high ambient-brightness conditions, higher brightness may be required for visibility. Fashion and auto shows are two kinds of Indoor LED Display which have higher brightness to meet the requirement by environment. There is also other kind of Indoor LED Display which characterized as lower brightness levels with lower color temperatures such as a shot on a television studio set. Common displays have a white point of 6500–9000 K, which is much bluer than the common lighting on a television production set.