Display device and light-diffusing sheet stacked body
US11493803B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 25, 2021 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Jun 25, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133614
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display device includes a light-emitting module and a light-diffusing sheet stacked body. The light-emitting module includes at least one light guide plate including an upper surface and a lower surface, and light sources disposed at the lower surface side of the light guide plate. The light-diffusing sheet stacked body includes a first light-diffusing sheet disposed on the light guide plate, a second light-diffusing sheet disposed on the first light-diffusing sheet, and a third light-diffusing sheet disposed on the second light-diffusing sheet. The first light-diffusing sheet includes first protrusions at an upper surface side thereof. The second light-diffusing sheet includes second protrusions at an upper surface side thereof. The third light-diffusing sheet includes third protrusions at an upper surface side thereof. A shape of the third protrusion may be different from a shape of the first protrusions and/or a shape of the second protrusions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.