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Electronic Shelf Label, also known by the acronym
ESL, is a system used by retailers for displaying product pricing on
shelvesShelf may refer to:* Shelf , a flat horizontal surface used for diplay and storage* Shelf , a user interface feature in the NeXTSTEP operating system* Shelf, West Yorkshire, a village in England...
. Typically, electronic display modules are attached to the front edge of retail shelving. These modules use
Liquid Crystal DisplayA liquid crystal display is a flat panel display, electronic visual display, or video display that uses the light modulating properties of liquid crystals . LCs do not emit light directly....
(LCD) or similar technology to show the current product price to the customer. A communication network allows the price display to be automatically updated whenever a product price is changed. This communication network can be based on radio, infrared or even visible light communication. Automated ESL systems reduces pricing management labor costs and improves pricing accuracy.