| 发明名称 |
Approaches to control color mura in optical films |
| 摘要 |
A brightness enhancement film includes a plurality of linear prisms disposed on a birefringent substrate. A light ray that enters the film from the substrate side and exits the film from the linear prisms side undergoes substantially a same phase retardation for mutually orthogonal polarization states while travelling within the film. The light ray exits the film at an angle from a normal to the substrate that is greater than 20 degrees. |
| 申请公布号 |
US9329312(B2) |
申请公布日期 |
2016.05.03 |
| 申请号 |
US201213261868 |
申请日期 |
2012.11.09 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
Boyd Gary T.;Wang Qingbing |
| 分类号 |
F21V8/00;G02B5/04;G02B5/30 |
主分类号 |
F21V8/00 |
| 代理机构 |
|
代理人 |
Iden Daniel J. |
| 主权项 |
1. A brightness enhancement film comprising:
a plurality of linear prisms disposed on a birefringent substrate, such that a light ray that enters the film from the substrate side and exits the film from the linear prisms side and undergoes substantially a same phase retardation for mutually orthogonal polarization states while travelling within the film, exits the film at an angle from a normal to the substrate that is greater than 20 degrees. |
| 地址 |
Saint Paul MN US |
