Browsing by Author "Chao, Paul C. -R"

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Modeling and Analysis of Touch on the Flexible Ultra-Thin Touch Panel by Using the Finite Element Method
(2016)
Chao, Paul C. -R
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Chou, Kuo-Yu
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Wu, Chang-Xian
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Chen, Chuan Xin
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Lu, Yi-Chuan
The work employs the finite element method to model the finger touch on the flexible ultra-thin touch panel for analyzing the touch signal. The touch signal generates the ghost points when the fingers multi-touch on the flexible ultra-thin touch panel. The simulation of minimizing the top layer (over cover) thickness based on the model is conducted in order to eliminate the ghost points. The simulation results show the over cover thickness should be larger than 107 mu m to eliminate the ghost points. Further, we propose the method to solve the ghost points and minimize the over cover thickness. The simulation results conducted in this proposed method show that the over cover thickness can be reduced further to 65 mu m.
OPTICAL SIMULATION FOR DESIGNING A PPG SIGNAL PATCH
(2019-01-01)
Pribadi, Eka Fitrah
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Chao, Paul C. -R
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電機資訊國際學位學程
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EECS International Institute
Designing an optical patch for photoplethysmogram (PPG) signal considers the optical simulation of the patch on the skin. The skin model for the optical simulation consists of epidermis, a dermis, a subcutaneous fat, and a blood vessel, while the model ofthe patch includes an organic light emitting diode (OLED) and an organic photodiode (OPD). Each model of skin layers is implemented using bulk and scattering of the optical parameter. In order to model the AC/DC ofPPG signal, the blood vessel of the optical model uses the diameter of 2 mm and 2.2 mm. The simulation conducted by sweeping the distance of OPD model apart of OLED in knowing the optimal distance between OLED and OPD. The simulation of the different shape of patches is conducted to know the optimum shape ofthe patch. The 8 -shaped patch has the optimum value of the AC/DC signal which is 0.0045.