Three-dimensional holographic display using multiple pinholes and method of operating the same
US11915627B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Sep 23, 2019 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Dec 17, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/282
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A viewing angle expansion plate, which is a multi-pinhole mask, includes a plurality of cell areas; and a plurality of pinholes formed in the plurality of cell areas, wherein each cell area from among the plurality of cell areas corresponds to a respective pixel from among a plurality of pixels in a flat panel display. The flat panel display includes a light source configured to emit parallel light; a flat panel, on which the parallel light is incident, configured to provide a three-dimensional image; and the viewing angle expansion plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.