| 发明名称 |
POSITIONAL INPUT SYSTEMS AND METHODS |
| 摘要 |
Positional input systems and methods are provided. A positional input method can include passing (210) a polarized light generated by a source through a predetermined pattern of visibly transparent polarizing elements disposed on the surface of a display device. The method further includes detecting (220) a change in the polarization state of the polarized light corresponding to a location on the display device. |
| 申请公布号 |
US2016077669(A1) |
申请公布日期 |
2016.03.17 |
| 申请号 |
US201514947050 |
申请日期 |
2015.11.20 |
| 申请人 |
Hewlett-Packard Development Company, L.P. |
发明人 |
Thomas III Fred Charles |
| 分类号 |
G06F3/042;G02F1/01;G06F3/041 |
主分类号 |
G06F3/042 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A positional method, comprising:
passing a polarized light generated by a source through a visibly masked programmable phase retarder film disposed on a surface to change the polarization state of the polarized light; and detecting the change in the polarization state of the polarized light corresponding to a location on the surface. |
| 地址 |
Houston TX US |
