A pick/put to display (PTD) device includes an image display that allows the PTD device to display images related to a product, such as a picture of the product, a barcode or an instructional video. By having the capability to display images of the product, the PTD device is able to reduce the risk that...http://www.google.ca/patents/US7262685?utm_source=gb-gplus-sharePatent US7262685 - Inventory system with barcode display