发明名称 |
PROXIMITY AND TOUCH SENSING SURFACE FOR INTEGRATION WITH A DISPLAY |
摘要 |
A system and method for hover detection and touch detection in a display. In one embodiment, a first set of infrared (IR) emitters illuminates the interior of a transparent layer and the IR light is confined to the interior of the layer by total internal reflection, unless an object, such as a finger, touches the surface of the layer. Additional IR emitters at a different wavelength illuminate the volume outside of the display for hover detection. Two sets of wavelength-selective IR sensors, such as quantum dot sensors, are embedded in the display and are used to localize one or more fingers touching, or hovering near, the display. |
申请公布号 |
US2014192023(A1) |
申请公布日期 |
2014.07.10 |
申请号 |
US201314025660 |
申请日期 |
2013.09.12 |
申请人 |
Samsung Display Co., Ltd. |
发明人 |
Hoffman David |
分类号 |
G06F3/042 |
主分类号 |
G06F3/042 |
代理机构 |
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代理人 |
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主权项 |
1. A system for sensing proximity to, and touching of, a transparent layer having two principal surfaces, the layer forming the outer surface of a display, the system comprising:
a first emitter of light, configured to emit light at a first infrared wavelength into a region between the two principal surfaces; a plurality of second emitters of light, configured to emit light at a second infrared wavelength differing from the first infrared wavelength and to illuminate a volume exterior to the display; a plurality of first sensors in the interior of the display, configured to sense light at the first infrared wavelength; and a plurality of second sensors, configured to sense light at the second infrared wavelength. |
地址 |
Yongin-si KR |