Optical member and optical display device comprising same
US12077669B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2021 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Jun 29, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/014
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided are an optical member and an optical display device including same, the optical member comprising: a base film; and a light transmission control layer stacked on the lower surface of the base film, wherein the light transmission control layer comprises: a dye or dye mixture including at least one of a first dye having a maximum absorption wavelength of about 540 nm to about 630 nm, a second dye having a maximum absorption wavelength of about 390 nm to about 470 nm, a third dye having a maximum absorption wavelength of about 480 nm to about 530 nm, and a fourth dye having a maximum absorption wavelength of about 640 nm to about 760 nm; and a resin having a hydroxyl value of 5 mgKOH/g or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.