Virtual image display device
US11988836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2021 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Jul 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A virtual image display device includes first and second light combining parts spaced apart from each other, a first display part on a first inclined surface of the first light combining part, a second display part on a second inclined surface of the first light combining part, a third display part on a third inclined surface of the second light combining part, a fourth display part on a fourth inclined surface of the second light combining part, a first light diffraction part on a first light output surface of the first light combining part, and a second light diffraction part on a second light output surface of the second light combining part. Two of the first to fourth display parts output images of a same color light, and the other two of the first to fourth display parts output images of different color light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.