Illumination device including first to third sheets and display device including the same
US11966071B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2023 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Feb 20, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133615
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to an aspect of the disclosure, an illumination device includes: a first sheet including a first light entering main surface, a first light emission main surface, two first light blocking portions disposed at an interval in a first direction, and a first light-transmitting portion disposed between the two first light blocking portions; a second sheet including a second light entering main surface facing the first light emission main surface, a second light emission main surface, and a first lens; and a third sheet including a third light entering main surface facing the second light emission main surface, a third light emission main surface, two second light blocking portions disposed at an interval in the first direction, and a second light-transmitting portion disposed between the two second light blocking portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.