Display with case electrically connected to ground
AssigneeMitsubishi Electric Corporation
InventorsSeiichiro Mori, Yusuke Shimasaki, Kageyasu Miyahara, Yuichi Okano
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Abstract
A display includes a touch sensor panel, a panel controller, a case, and a signal generation circuit. The touch sensor panel includes a touch sensor. The panel controller measures a capacitance of the touch sensor. The case accommodates the display, in which at least the touch sensor panel and the panel controller are disposed. The signal generation circuit is capable of applying an AC signal to a ground of the panel controller. The case is electrically connected to the ground of the panel controller. When the signal generation circuit applies the AD signal to the ground, the panel controller measures the capacitance of the touch sensor.
Claims9
A display comprising:
- a touch sensor panel including a touch sensor;
- a panel controller that measures a capacitance of said touch sensor;
- a case that accommodates said display, in which at least said touch sensor panel and said panel controller are disposed;
- and
- a signal generation circuit capable of applying an AC signal to a ground of said panel controller, wherein
- said case is electrically connected to the ground of said panel controller, and
- when said signal generation circuit applies the AC signal to the ground, said panel controller measures the capacitance of said touch sensor.
Dependencies are inferred from the claim text.