Electronic paper (or e-paper) are clear sheets which can be 'printed' upon digitally.
Description[]
These sheets only reveal the information when held. It is assumed that the sheets can be reused for different messages/reports.
The majority of the e-paper used is maleable in shape, similar to ordinary paper, but there have been solid versions shown, including one that is able to show video playback and zoom into detail similar to touch screen tablets.
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