SCANNING METHOD AND DEVICE OF A SINGLE LAYER CAPACITIVE TOUCH PANEL

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United States of America Patent

APP PUB NO 20160092019A1
SERIAL NO

14848380

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Abstract

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A scanning method and device of a single layer capacitive touch panel has a self and mutual capacitive scanning procedures. The single layer capacitive touch panel has multiple electrode groups and shielding units respectively formed between the two corresponding adjacent electrode groups. When the self capacitive scanning procedure is executed, a first driving signal is outputted to each of the electrode groups and each of the shielding units. A self capacitive sensing signal of the driven electrode group is received after then. When the mutual capacitive scanning procedure is executed, a second driving signal is outputted to each of the electrode group and each of the shielding unit is connected to a ground. A mutual capacitive sensing signal from each of the driven electrode groups is received after then. Therefore, the self capacitance value of the self capacitive sensing signal is not increased greatly since the shielding units are not connected to the ground.

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Patent Owner(s)

Patent OwnerAddress
ELAN MICROELECTRONICS CORPORATIONNO 12 INNOVATION RD HSINCHU SCIENCE PARK HSINCHU 30076

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Jung-Shou Zhubei City, TW 18 247
Wu, Chia-Mu Taipei City, TW 14 156

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