Display apparatus and device
US7997723B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2008 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Dec 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0196
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A near-eye display related apparatus and device is disclosed. The apparatus includes a housing configured to receive an optical engine, and a light guiding plate attached to the housing and configured to receive light representing an image from the optical engine, the light guiding plate includes a first diffractive grating adapted to incouple the light into the light guiding plate, and a second diffractive grating adapted to outcouple the light from the light guiding plate such that the light is received by an eye of a user wearing the apparatus. The light guiding plate has a contact surface portion configured to optically couple the light guiding plate to a transparent plate, The contact surface portion being adapted to be in physical contact with the transparent plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.