Systems and methods for augmented reality devices with light security
US10451878B2 · kind B2 · utility
1Cited by
21References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 12, 2017 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Apr 12, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method of reducing light leakage from display devices are described. An embodiment of reducing light leakage from display devices includes providing an optical shutter that is configured to block light from a display device from being emitted into the ambient environment when the display device is in a bright state and configured to display visual information to the user. The optical shutter can be configured to transmit light from the ambient environment to the user when the display device is not displaying visual information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.