Layered label structure with timer
US7821794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2005 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Sep 16, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a thin, layered, variable label structure with built-in electronic functionality. The display and/or other functional elements in the structure may be formed by printing processes. The label structure includes a thin, layered structure with an active display, comprising a base layer and a cover layer of material and a display component situated between the base layer and the cover layer. The display is formed with a layer of electrochromic ink and a pair of spaced apart electrodes. The cover layer includes a window to allow for the layer of electrochromic ink to be visible through the cover layer. The label also is configured to respond to an actuating event by completing an electrical connection between a power source and the pair of spaced apart electrodes of the display component, thereby causing the display to change its appearance. The actuating event may include a variety of occurrences, such as: pressing a switch on the label, introducing a power source to activate the display, and a sensor sensing a condition near the label.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.