Quantum-dot containing resin sheet or film, method for producing the same, and wavelength conversion member
US12365829B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2024 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Jan 11, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8513
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A wavelength conversion member, for a backlight, is provided. The wavelength conversion member includes a stack of a plurality of resin layers, with at least one of the plurality of resin layers containing quantum dots. The plurality of resin layers is integrally molded through co-extrusion, and forms a three-layer structure comprising a middle layer containing the quantum dots and upper and lower layers that do not contain the quantum dots. The upper layer and the lower layer are respectively on an upper side and a lower side of the middle layer. The upper and lower layers each contain a light scattering agent. Each of the plurality of resin layers is directly joined together with a bonding layer at an interface between the middle layer and the upper layer and not at an interface between the middle layer and the lower layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.