TOUCH SCREEN AND TOUCH MODULE
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United States of America Patent
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Issued Date -
Dec 23, 2010
app pub date -
Aug 24, 2009
filing date -
Jun 22, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A touch screen including a display, at least two touch units and a control unit is provided. The display has a displaying surface. The touch units are disposed beside the displaying surface. Each of the touch units includes a light source and an image sensor. The light source is adapted to emit a light beam toward a sensible space in front of the displaying surface. The image sensor is adapted to capture the bright spot in the sensible space, and generate an image signal. The control unit is electrically connected to the light sources and the image sensors. The control unit is adapted to receive the image signals from the image sensors, and determine the position of the bright spot relative to the displaying surface according to the image signals. A touch module and a control method are also provided.
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