Noren describes a traditional Japanese curtain, which is hung in rooms, door frames or windows or used as a room divider. The fabric of the Noren is divided by a vertical incision that extends from the bottom almost to the top so that you can enter through the slot.

Traditionally, Noren are used by restaurants and shops, on the one hand as protection against sunlight, wind and dust, and on the other hand as advertising space. Today they are mainly used to indicate that the shop is open.