Display device
US6905219B2 · kind B2 · utility
14Cited by
17References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 2002 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | May 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display device having an indicator interposed between two light controlling elements. The light controlling elements act in cooperation to restrict the viewing angle of the display in at least two directions. Only one of the light collimating elements restricts the angle of ambient light entering the display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.