Optical film and liquid crystal display device including the same
US10437105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2017 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Mar 11, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical film includes a negative C-plate, a light diffusion layer on the negative C-plate, and a polarizer on the negative C-plate where the polarizer includes a linear polarizer and a retardation plate on the linear polarizer, the light diffusion layer includes a first light-transmissive base and a plurality of first rods that have a different refractive index from that of the first light-transmissive base and are aligned at a first inclination angle within the first light-transmissive base, and the negative C-plate has an x-axis refractive index Nx, a y-axis refractive index Ny, and a z-axis refractive index Nz, where “Nx>Nz” and “Ny>Nz.”
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.