標題: Optical touch display device, optical touch sensing device and touch sensing method
作者: Tseng, Ping-Chen
Tien, Chung-Hao
公開日期: 8-Apr-2010
摘要: The present invention provides an optical touch display device, an optical touch sensing device, and a method for calculating a touch position. The optical touch sensing device can be detachably attached on a display panel using adhesive or other method. The present invention includes a first light source, a second light source, a light sensing element, and a processing unit. When an object blocks the path of light, some light sensing elements will receive some or no light. The processing unit will then compute two line segments based on the positions of light sensing elements receiving some or no light. The two line segments cross each other and their intersection is defined as the position of object or the touch position.
官方說明文件#: G06F003/042
URI: http://hdl.handle.net/11536/105424
專利國: USA
專利號碼: 20100085329
Appears in Collections:Patents


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