Display apparatus with light source module having light turning film with micro structures with different heights
US10488575B2 · kind B2 · utility
1Cited by
13References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Mar 31, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0038
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light turning film includes a light incident surface with first and second pluralities of first optical microstructures and a plurality of second optical microstructures; and a light emitting surface opposite to the light incident surface. The first optical microstructures and the second optical microstructures protrude outward from the light turning film, such that the height of one of the first and second optical structures is equal to or less than two thirds of the height of the other one of the first and second optical structures. The light turning film might be included in a light source module for a display apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.