Abstract
Digital Signage has five business models. “Advertisement Signage” is the most famous for the purpose of displaying an advertisement on the display which is installed in a train and a pillar of the station. “Promotion Signage” is used by the POP or a product explanation in the store. “Information Signage” is like a used for departure and arrival guidance in the airport and the stock prices board, various information indication in the office. Other two are “Event Signage” and “Spatial Presentation Signage”.
But the projector technology and projection mapping technology has become a hot topic in the last two areas recently. Especially, ultra short throw projector has a feature that the distance to the screen is very short have been utilized in the areas.
