TOUCH SCREEN DEVICE
First Claim
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1. A touch screen device comprising:
- a panel main body comprising;
a touch surface;
a plurality of first electrodes provided parallel to each other; and
a plurality of second electrodes provided parallel to each other, the first electrodes and the second electrodes being disposed in a grid pattern;
a grouper that groups the plurality of electrodes into groups, electrically connecting the electrodes belonging to the same group; and
a controller that detects a touch position based on a change in an output signal from the electrodes associated with a change in electrostatic capacitance according to a touch operation by a pointing object on the touch surface, determines a size of the pointing object based on the detection result of the touch operation, and switches a number of electrodes in a group according to the size of the pointing object.
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Abstract
The size of a pointing object is determined based on a detection result of a touch operation with a pointing object, and the number of electrodes in a group is switched according to the size of the pointing object. In particular, the size of the pointing object is categorized into three groups based on the size of an adult'"'"'s finger, a child'"'"'s finger, and a stylus, and the number of electrodes in a group is set to three levels. The number of electrodes in a group varies according to powers of two, such as two, four, and eight.
51 Citations
20 Claims
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1. A touch screen device comprising:
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a panel main body comprising; a touch surface; a plurality of first electrodes provided parallel to each other; and a plurality of second electrodes provided parallel to each other, the first electrodes and the second electrodes being disposed in a grid pattern; a grouper that groups the plurality of electrodes into groups, electrically connecting the electrodes belonging to the same group; and a controller that detects a touch position based on a change in an output signal from the electrodes associated with a change in electrostatic capacitance according to a touch operation by a pointing object on the touch surface, determines a size of the pointing object based on the detection result of the touch operation, and switches a number of electrodes in a group according to the size of the pointing object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification