Invention Grant
US09207809B2 Optical touch system and optical touch control method 有权
光触摸系统和光触控制方法

Optical touch system and optical touch control method
Abstract:
An optical touch control method includes steps of: providing a bright background from at least one edge of a touch surface in a first period; providing illumination light to the touch surface in a second period; capturing a first image of an indicator object blocking a portion of the bright background in the first period; and capturing a second image of the indicator object reflecting the illumination light in the second period. An optical touch system is also provided.
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