| 发明名称 |
APPARATUS AND METHOD FOR DETECTING SURFACE SHEAR FORCE ON A DISPLAY DEVICE |
| 摘要 |
A display device includes: an optical sensing array to detect light; a backlight to emit light toward a surface of the display device; and a thin optical film layer at the surface of the display device, the thin optical film layer being configured to, while a first shear force is being applied at a first point of contact at the surface of the display device, reflect light having a first wavelength at a front area ahead of the first point of contact in a direction of the first shear force, and reflect light having a second wavelength at a back area behind the first point of contact opposite the front area, the first wavelength being different from the second wavelength. |
| 申请公布号 |
US2015177909(A1) |
申请公布日期 |
2015.06.25 |
| 申请号 |
US201414562627 |
申请日期 |
2014.12.05 |
| 申请人 |
SAMSUNG DISPLAY CO., LTD. |
发明人 |
Hoffman David M.;Galela Jennifer J.;Xue Jiuzhi |
| 分类号 |
G06F3/042 |
主分类号 |
G06F3/042 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A display device comprising:
an optical sensing array to detect light; a backlight to emit light toward a surface of the display device; and a thin optical film layer at the surface of the display device, the thin optical film layer being configured to, while a first shear force is being applied at a first point of contact at the surface of the display device, reflect light having a first wavelength at a front area ahead of the first point of contact in a direction of the first shear force, and reflect light having a second wavelength at a back area behind the first point of contact opposite the front area, the first wavelength being different from the second wavelength. |
| 地址 |
Yongin-City KR |
