Light diffusion member, method of manufacturing same, and display device
US9341345B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2012 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Aug 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133562
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light diffusion member includes a light-transmissive base, a plurality of light diffusion portions, a connecting portion, and a light absorbing layer. The light diffusion portions are arranged on one surface of the base and have light-incident end surfaces each positioned on the side away from the base and having a larger area than a light-emergent end surface thereof. The connecting portion connects at least two adjacent ones of the plural light diffusion portions to each other, and is positioned near the light-incident end surfaces of the adjacent light diffusion portions. The light absorbing layer is formed on the one surface of the base in a region different from a region where the light diffusion portions are formed. A size from the light-incident end surface to the light-emergent end surface of the light diffusion portion is larger than a thickness of the light absorbing layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.