Optical film, manufacturing method of light absorption anisotropic layer, and image display device
US12422608B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2023 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Dec 4, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B33/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical film that, when being used in an image display device, it is possible to suppress a change in redness with respect to an original image in images reflected in surroundings, a manufacturing method of a light absorption anisotropic layer, and an image display device. The optical film includes a light absorption anisotropic layer which contains a liquid crystalline compound and a dichroic substance, in which an angle θ between a transmittance central axis of the light absorption anisotropic layer and a normal direction of a surface of the light absorption anisotropic layer is 0° or more and 45° or less, and a haze value of the optical film is more than 1% and 20% or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.