Waveguide mirror display system
US10604075B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2017 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | May 10, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/44
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle display mirror system is disclosed. The system comprises an electro-optic device configured to switch between a mirror state and a display state. The electro-optic device comprises a first substrate and a second substrate forming a cavity. The cavity is configured to retain an electro-optic medium that is variably transmissive such that the electro-optic device is operable between substantially clear and darkened states. The system further comprises a substantially transparent display disposed adjacent to the electro-optic device. The substantially transparent display comprises a switchable output grating configured to selectively diffract light outward from the waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.