Optical structure, light guide, and a display device
US10670795B2 · kind B2 · utility
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Key dates
| Filing date | Nov 24, 2017 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Nov 24, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical structure, a light guide, and a display device can reduce an influence of diffraction and improve optical performance more than conventionally possible. A reflective pattern (10A) is an optical structure that changes a traveling direction of light and emits the light, the optical structure including: a reflective surface (20) formed of a flat surface and configured to change a traveling direction of light; and a both-end curved surface (30) formed adjacent to the reflective surface (20) and having a surface in a curved shape corresponding to a side surface of a cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.