PRICE UPDATE METHOD IN POWER NEEDLESS ESL SYSTEM

摘要

The present invention relates to a price modification method used in a non-powered electronic price display device. The non-powered electronic price display device according to the present invention can always display the product prices without a built-in battery or an external power supply by utilizing an electronic ink method. A non-powered electronic price display reader and respective electronic price display devices used in the non-powered electronic price display system establish wireless communications based on a shared data code structure.