PROJECTION SYSTEM AND TOUCH SENSING DEVICE
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United States of America Patent
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app pub date -
Aug 10, 2017
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Aug 11, 2016
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Abstract
A projection system including a projection display device and a touch sensing device is provided. The projection display device is configured to project an image frame to a projection plane. The projection display device includes a first signal transmission interface. The touch sensing device is electrically connected to the projection display device. The touch sensing device is configured to sense a touch operation on the projection plane. The touch sensing device includes a second signal transmission interface. The projection display device and the touch sensing device perform a signal transfer operation via the first signal transmission interface and the second signal transmission interface. The signal transfer operation includes transferring an image parameter of the image frame.
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