Touch apparatus
First Claim
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1. A touch apparatus, comprising:
- a plurality of first sensing electrodes, extending along a first direction;
a plurality of second sensing electrodes, electrically isolated from the first sensing electrodes, and extending along a second direction different from the first direction;
a plurality of third sensing electrodes, electrically isolated from the second sensing electrodes, and extending along the first direction, wherein the first sensing electrodes, the second sensing electrodes, and the third sensing electrodes are formed at different plurality of film layers respectively, wherein the third sensing electrodes, the second sensing electrodes and the first sensing electrodes are sequentially arranged along a line-of-sight direction vertical to the first direction and the second direction; and
a control unit, electrically connected to the first sensing electrodes, the second sensing electrodes, and the third sensing electrodes, wherein the control unit determines a touch position of a finger according to signals on the first sensing electrodes and the second sensing electrodes, and determines a touch position of a stylus according to signals on the second sensing electrodes and the third sensing electrodes,wherein the control unit reads the signals on the first sensing electrodes and signals on the third sensing electrodes at the same time, so as to obtain a first signal difference;
the control unit reads the signals on the first sensing electrodes and the signals on the third sensing electrodes at the same time, so as to obtain a second signal difference; and
the control unit compares the first signal difference and the second signal difference, so as to determine an orientation of a stylus.
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Abstract
A touch apparatus includes a plurality of first sensing electrodes, a plurality of second sensing electrodes, and a plurality of third sensing electrodes. The first sensing electrodes extend along a first direction. The second sensing electrodes are electrically isolated from the first sensing electrodes, and extend along a second direction. The plurality of third sensing electrodes are electrically isolated from the second sensing electrodes, and extend along the first direction. At least some of the first sensing electrodes, at least some of the second sensing electrodes, and at least some of the third sensing electrodes are formed at different film layers respectively.
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Citations
16 Claims
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1. A touch apparatus, comprising:
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a plurality of first sensing electrodes, extending along a first direction; a plurality of second sensing electrodes, electrically isolated from the first sensing electrodes, and extending along a second direction different from the first direction; a plurality of third sensing electrodes, electrically isolated from the second sensing electrodes, and extending along the first direction, wherein the first sensing electrodes, the second sensing electrodes, and the third sensing electrodes are formed at different plurality of film layers respectively, wherein the third sensing electrodes, the second sensing electrodes and the first sensing electrodes are sequentially arranged along a line-of-sight direction vertical to the first direction and the second direction; and a control unit, electrically connected to the first sensing electrodes, the second sensing electrodes, and the third sensing electrodes, wherein the control unit determines a touch position of a finger according to signals on the first sensing electrodes and the second sensing electrodes, and determines a touch position of a stylus according to signals on the second sensing electrodes and the third sensing electrodes, wherein the control unit reads the signals on the first sensing electrodes and signals on the third sensing electrodes at the same time, so as to obtain a first signal difference; the control unit reads the signals on the first sensing electrodes and the signals on the third sensing electrodes at the same time, so as to obtain a second signal difference; and the control unit compares the first signal difference and the second signal difference, so as to determine an orientation of a stylus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification