Optical element and display device using the same
US10996464B2 · kind B2 · utility
0Cited by
3References
11Claims
0Family size
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Key dates
| Filing date | Jul 20, 2020 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jul 20, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/60
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element including a first pattern is provided. The first pattern includes a film and a plurality of light deflection regions arranged on the film, wherein each light deflection region comprises a diffraction structure having two or more than two amplitudes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.