Electro-optic device comprising an identification marker
US11762257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2020 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Jul 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electro-optic device comprises in order, an electrically-conductive light-transmissive layer, an electro-optic material layer, an adhesive layer, and a backplane substrate comprising a plurality of pixel electrodes configured to apply an electrical potential between the electrically-conductive light-transmissive layer and the pixel electrodes. An activation region, comprising an identification marker, is located in a layer of the electro-optic device and it emits radiation of a characteristic wavelength upon activation by a stimulus, enabling the identification of the manufacturing source and the manufacturing lot of the electro-optic device and its components. The technology is also relevant for a front plane laminate and a double release sheet, which are useful components for the manufacture of electro-optic devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.