Optical layered body and surface light source device
US9774005B2 · kind B2 · utility
1Cited by
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8Claims
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Key dates
| Filing date | Jun 18, 2014 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Jun 18, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2307/418
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An optical layered body including: a substrate layer; a first adhesive layer disposed on one surface of the substrate layer; and a second adhesive layer disposed on an opposite surface of the first adhesive layer to the substrate layer, wherein the second adhesive layer includes particles that are capable of scattering light, and a refractive index n1 of the first adhesive layer and a refractive index n2 of the second adhesive layer satisfy1.40≦n1≦1.50,1.47≦n2≦1.85, and0<n2−n1≦0.45.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.