Directive colour filter and naked-eye 3D display apparatus
US10429660B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 31, 2015 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Dec 31, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/125
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A directive color filter and a naked-eye 3D display apparatus are provided. The directive color filter includes a color filter and a directive functional structure layer. The color filter includes multiple light filtering units, and each light filtering unit includes at least three light filtering sub-units with different colors. The directive functional structure layer includes multiple structure units, and each structure unit and one light filtering unit are arranged correspondingly. Each structure unit includes at least three structure sub-units. Each structure sub-unit and one light filtering sub-unit are arranged correspondingly. Each structure sub-unit includes multiple nano diffraction gratings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.