Light absorption anisotropic film, optical film, and image display device
US12235479B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2023 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Dec 14, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/043
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light absorption anisotropic film that, in a case of being applied to an image display device, it is possible to suppress redness of an image originating from the image display device, which is reflected on surrounding members arranged around the image display device; and an optical film and an image display device. The light absorption anisotropic film is formed of a composition containing a liquid crystal compound and a dichroic substance, in which the light absorption anisotropic film has two main surfaces facing each other, an angle between a normal direction of the main surface of the light absorption anisotropic film and a transmittance central axis of the light absorption anisotropic film is 0° to 45°, and predetermined requirements are satisfied depending on the angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.