TFT LCD Displays play a very important role in today's retail applications. They can not only mark prices, introduce products, promote new products, and promote sales, but also help consumers find target products. On the other hand, displays also play a more aggressive role in guiding consumers or attracting crowds in generalized retail applications (which may also be generally included in Digital Signage applications). So the retail used display installation location may be from the outside of the store, or inside shop window but face to street, or at the aisle, ceiling, shelf or counter inside of the store.