| 摘要 |
PROBLEM TO BE SOLVED: To provide a display rack system feeding power to electronic shelf labels without mechanical contacts. SOLUTION: A display rack includes a shelf board for placing merchandise, a shelf label installation means installing electronic shelf labels, and a light source emitting light within a wavelength zone of 380-1,000 nm. The electronic shelf label includes a display part on the surface of the electronic shelf label, a signal receiving part to receive merchandise information from an external terminal, a storage part storing the merchandise information, a drive circuit for displaying, and a solar battery on the rear surface of the electronic shelf label receiving at least part of the light from the light source, to be driven by the power from the solar battery. COPYRIGHT: (C)2011,JPO&INPIT
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