Optical sheet having a composite structure thereon and method to make the same
US10175393B2 · kind B2 · utility
0Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2016 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Oct 6, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00278
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention discloses a method of forming an optical sheet. The optical sheet comprises a substrate and a film. The substrate has a first surface and a second surface opposite to the first surface. The film has a third surface and a fourth surface opposite to the third surface. The third surface of the film is on the first surface of the substrate. The fourth surface of the film comprises a structure corresponding to a combination of a plurality of first convex shapes and a plurality of second convex or concave shapes superimposed on the plurality of first convex shapes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.