Optical film, display panel and display device including the same
US11966119B2 · kind B2 · utility
1Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2020 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Oct 30, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/007
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical film for a display device, includes: a first refractive layer having an upper surface and a lower surface including first projections and second projections extending away from the lower surface in a first direction, the second projections having different heights than the first projections, the first projections having lateral sides with different angles of inclination that decrease in the first direction; and a second refractive layer disposed directly on the upper surface of the first refractive layer, the second refractive layer having a refractive index different from that of the first refractive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.