Patent ID: 8508523
Filing Date: 2013-08-13
Classification: G06F,G09G,Y04S

Abstract:
1. An electronic paper display apparatus comprising: an electronic paper display unit configured to display thereon first image information including confidential information; a storage unit configured to store therein the first image information and a second image information consisting of non-confidential information; a display control unit configured to perform a control of writing and rewriting the first image information on the electronic paper display unit; an electric-power supply unit configured to supply electric power to the display control unit; and a determination unit configured to determine whether or not the electric power to the display control unit is lower than a threshold, wherein when the determination unit determines that the electric power to the display control unit is lower than the threshold, the display control unit saves the first information on the electronic paper display unit into the storage unit, and rewrites the first image information on the electronic paper display unit to the second image information consisting of non-confidential information; the electronic paper display apparatus further comprising: a thermoelectric generation unit that does not include a battery, and converts thermal energy provided from a body temperature of a user into electric power upon the user contacting the thermoelectric generation unit, and supplies the electric power to the display control unit as operating power of the display control unit, and wherein the determination unit determines whether the user is in contact with the thermoelectric generation unit, and when the determination unit determines that the user is not in contact with the thermoelectric generation unit, the display control unit performs a control of rewriting the first image information displayed on the electronic paper display unit with second image information.