Title :
Multi-touch optical device based on patterned design and algorithm matrix
Author :
Chang, Wen-Yang ; Lin, Heng-Ju ; Chang, Jin-Sheng ; Li, Yan-Yi
Author_Institution :
Dept. of Mech. & Comput.-Aided Eng., Nat. Formosa Univ., Yunlin, Taiwan
Abstract :
The optical device of multi-touch based on an algorithm matrix and patterned design was investigated. The algorithm matrix for array scanning is derived using voltage divider rule with two configurations of equivalent circuits. The virtual high and low impedances are used for patterned design. The microelectromechanical systems technologies are carried out for fabrication process of multi-touch panel. The multi-touch panel with a array of 30 × 30 has a pitch distance of 2 mm and a pixel size of 2 × 2 mm2. The maximum transmittance is about 74.2% at the wavelength of 692 nm. The average values of high and low impedances are 53.23 k ohm and 9.3 k ohm, respectively.
Keywords :
equivalent circuits; matrix algebra; micro-optomechanical devices; microfabrication; voltage dividers; algorithm matrix; array scanning; equivalent circuits; microelectromechanical systems; multitouch optical device; multitouch panel fabrication process; patterned design; resistance 53.23 kohm; resistance 9.3 kohm; voltage divider rule; wavelength 692 nm; Fabrication; Films; Glass; Impedance; Indium tin oxide; Positron emission tomography; Substrates; High/low impedance; Multi-touc; ghost point; patterning;
Conference_Titel :
Nanoelectronics Conference (INEC), 2011 IEEE 4th International
Conference_Location :
Tao-Yuan
Print_ISBN :
978-1-4577-0379-9
Electronic_ISBN :
2159-3523
DOI :
10.1109/INEC.2011.5991683
