OPTICAL TOUCH-SENSING DISPLAY
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United States of America Patent
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Issued Date -
Apr 28, 2011
app pub date -
Oct 22, 2010
filing date -
Oct 23, 2009
priority date (Note) -
Abandoned
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Abstract
An optical touch-sensing display including a display device, at least three light guides, at least two optical touch-sensing devices and a transmission interface is provided. The display device has a display surface and a sensing space upon the display surface. Each of the light guides disposed at periphery of the display surface has two light incident surfaces and a light-emitting surface there between. Each of the optical touch-sensing devices disposed outside of the display surface includes a sensing module and a light source. When an object enters the sensing space, each sensing module senses a light variation induced by the object to generate a first signal, and then the first signals are transmitted to one sensing module and processed to a second signal, and then the second signal is output from the optical touch-sensing device through the transmission interface.
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