Holographic display apparatus and method for providing expanded viewing window
US11567451B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 24, 2021 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Jun 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2240/62
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A holographic display apparatus capable of providing an expanded viewing window and a display method are provided. The holographic display apparatus includes an image processor configured to provide computer generated hologram (CGH) data to a spatial light modulator, wherein the image processor is further configured to generate a hologram data array comprising information of the holographic image to be reproduced at the first resolution or a resolution less than the first resolution, perform an off-axis phase computation on the hologram data array at the second resolution, and then, generate the CHG data at the first resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.