Optical film and backlight unit including the same
US12222602B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2024 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Apr 1, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133617
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical film according to various embodiments of the present invention may include a first sheet comprising a first base portion, a first pattern layer including a plurality of prisms and formed on a surface of the first base portion, and a second pattern layer including a plurality of pyramids and formed as intaglio on the other surface of the first base portion; and a second sheet including a second base portion; a third pattern layer including a plurality of protrusions with an adhesive property and formed as a matte pattern on a surface of the second base portion, and a fourth pattern layer including a plurality of pyramids and formed as intaglio on the other surface of the second base portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.