Electronic paper display device

Abstract

The invention provides an electronic paper display device. The electronic paper display device comprises a storage unit, a control unit, a wireless communication module, an electronic paper display unit and an authentication unit, wherein the storage unit at least stores a piece of identification caution information; the control unit is electrically connected with the storage unit; the wireless communication module is electrically connected with the control unit and comprises a satellite positioning reception unit; the satellite positioning reception unit is used for receiving the current satellite positioning information of an electronic paper display device; the electronic paper display unit is electrically connected with the control unit and is used for displaying the identification caution information and satellite positioning information generated according to satellite positioning signals; the authentication unit is at least electrically connected with the control unit and is used for receiving a piece of authentication identification information; and when the authentication identification information passes the authentication of the authentication unit, the control unit updates display information of the electronic paper display unit.

Description

technical field [0001] The invention relates to an electronic paper display device, in particular to an electronic paper display device which can update displayed information only after passing authentication. Background technique [0002] Electronic paper (Electronic Paper) has the visual impression of imitating paper printing and writing, and its power consumption is extremely small. Electronic paper is different from ordinary flat-panel displays such as LCDs that require a backlight module to emit light or a self-illuminating light source to achieve a display function, that is, it has a display function without a backlight module or a self-illuminating light source. Just like ordinary paper, electronic paper relies on ambient light to illuminate, so it is more comfortable to read, and the displayed image is still clearly visible in sunlight. In addition, the viewing angle is extremely wide, and its contrast ratio is much higher than other display technologies. Less, roug...

AI Technical Summary

Problems solved by technology

[0003] As the application of electronic paper is becoming more and more widespread, in recent years, it has been further applied to electronic paper display devices such as wearable devices or portable electronic devices. Since these products are becoming lighter, thinner and smaller, they are easy to lose and difficult to find, so it is easy to Cause economic losses to users, leakage of personal data or confidential data

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