Optical touch device, and light source assembly and display module thereof
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United States of America Patent
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Feb 27, 2018
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N/A
app pub date -
Dec 7, 2012
filing date -
Dec 8, 2011
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Abstract
An optical touch device includes a sensing area, at least a light source assembly and a light sensing component. The light source assembly is disposed beside the sensing area and includes a plurality of first point light sources configured to sequentially emit a first beam into the sensing area. The light sensing component has a field of view of the entire sensing area and is configured to sense the first beams. A light source assembly and a display module used in the optical touch device are also disclosed.
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