SECURITY DISPLAY

摘要

A device ( 1 ) for decrypting encrypted images comprises an array of sensor elements ( 11 ) for sensing a first image, for example an encrypted image, and an array of display elements ( 12 ) for displaying a second image, for example a decrypted image. At least some display elements comprise integrated sensor elements, thus reducing the number of parts of the device. The integrated display/sensor elements ( 13 ) may be constituted by polymeric LED elements. The sensor function of the integrated elements may also be used for positioning the device relative to a terminal, and/or for checking a biometric feature of the user.