Optically variable pigments have been widely used in the security printing industry for decades as an effective physical security feature. However, in the Digital Age, physical security solutions increasingly require additional digital functionality for serialized information management, track-and-trace capabilities, and database integration.

The current approach involves security ink printing combined with QR codes, serialized numbering, or digital watermarks. But what if optical security features could be directly integrated with an electrical sensor—allowing them to change in response to an external electric field, effectively embedding digital information within the security feature itself?

NANOBRICK’s E-Glitter technology is an electrically color-changeable ePaper that exhibits optically variable properties. This security ink alters its optical characteristics when exposed to an external electric field. By laminating the E-Glitter film with a dot matrix or segmented panel, its optical variability can also embed digital information.

In this presentation, NANOBRICK introduces its innovative E-Glitter ePaper film, detailing the core technology behind it, how it functions as a next-generation PHYSITAL (physical + digital) security solution, E-secutag, its potential impact on the future of optical and digital security solutions.