Composite sheet and display device including the same
US10802202B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Dec 11, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0051
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composite sheet includes a first sheet and a second sheet. The first sheet includes a first substrate and a first optical pattern layer disposed on an upper surface of the first substrate. The second sheet is disposed on the first sheet. The second sheeting includes a second substrate and a second optical pattern layer disposed on an upper surface of the second substrate. An extending direction of the first optical pattern layer intersects an extending direction of the second optical pattern layer such that an intersection angle of the extending direction of the first optical pattern layer and the extending direction of the second optical pattern layer is in a range of 40° to 70°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.