Optical diffusion element having self-fused polymer particles free of a binder and display device equipped with the optical diffusion element
US6771336B2 · kind B2 · utility
8Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2002 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Mar 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133504
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical diffusion element comprises a layer of polymer particles self-fused together, each polymer particle having a refractivity varying from the center to the periphery thereof and a component for the periphery having a glass transition temperature that is desirably lower than 100° C. The optical diffusion element is desirably provided with an optical transparent layer in contact with the polymer particle layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.