Device and method for enhancing the viewing angle of a display
US5838416A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Feb 13, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133562
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device and method for enhancing the viewing angle of a display including the positioning of a liquid crystal beam deflector on display device, such as a liquid crystal display device. The liquid crystal beam deflector is capable of deflecting a display image incident thereon, thereby deflecting a primary viewing axis, resulting in an altered viewing axis and/or a broader viewing cone. The resultant effect allows the user to view the display image from the altered viewing angle or at any position within the broader viewing cone, to provide for a higher contrast output image by deflecting the brightest image away from the direction of specular reflection in ambient illuminated reflective displays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.