Browsing by Author "Chen, Tsu-Han"

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Bare Finger 3D Air-Touch System Using an Embedded Optical Sensor Array for Mobile Displays
(2014-01-01)
Wang, Guo-Zhen
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Huang, Yi-Pai
;
Chang, Tian-Sheuan
;
Chen, Tsu-Han
;
電子工程學系及電子研究所
Generally, 3-D interactive systems are used in systems with large displays and are not suitable for portable devices. To "touch" a floating 3-D image displayed from a mobile device, we proposed a camera-free, 3D, interactive, virtual-touch system for bare fingers. By embedding optical sensors into the display pixels and adding angular scanning illuminators to the edge of the display, a flat panel can sense the images reflected off a bare finger. The three-axis ( x, y, z) information of the fingertip can be determined by analyzing these reflected images. The proposed 3-D virtual-touch system successfully functions with a 4-inmobile display.
CAMERA FREE 3-DIMENSIONAL VIRTUAL TOUCH DISPLAY WITH MULTI-USER IDENTIFICATION
(2012)
Huang, Yi-Pai
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Wang, Guo-Zhen
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Huang, Shu-Yi
;
Tai, Ya-Hsiang
;
Chen, Tsu-Han
A camera free 3D interactive system for multi-user/multi-touch was proposed. By embedding the optical sensors in display pixels, the flat panel can sense images projected by infrared(IR) light. A light pen which can project T-mark IR image was utilized to determine the 5-axis (x, y, theta, phi) information of the user. Additionally, multiple T-marks with sequentially illuminating method can further identify multiusers even the marks are overlapped. Therefore, a 3-dimensional virtual touch display for 5-axis information with multi-user system can be achieved.
Three-Dimensional Virtual Touch Display System for Multi-User Applications
(2013-11-01)
Huang, Yi-Pai
;
Wang, Guo-Zhen
;
Chang, Tian-Sheuan
;
Chen, Tsu-Han
;
電子工程學系及電子研究所
By embedding optical sensors onto a TFT substrate in a display, a flat panel can sense images projected by infrared (IR) light. Light pens which can project Multi-T-mark including out-mark and in-mark of IR images were utilized to calculate the 3-axis information (x, y, and z) of the tip of the light-pen and achieve accurate user identification accordingly. Therefore, a 3-dimensional virtual touch display for 3-axis information with multi-user/multi-touch system can be achieved.