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US 2013/0162565 A1Published application
Touch sensor panel using oscillation frequency
AssigneeInterflex Corporation
InventorsJai-Kyung KIM, Kwang-Sik Lee
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Abstract
Disclosed are a device and a method of sensing a touch using an oscillation circuit. Touch sensor lines that detect a position by using a resistor and a capacitor of an RC oscillation circuit face each other to make pairs in a panel, and an oscillation frequency generated according to capacitance of the panel which is changed by a touch is measured through the adjacent touch sensor lines and two or more characteristics of the measured oscillation frequency are calculated to determine the touched position.
Claims15
A touch sensor panel, comprising:
- a substrate;
- a plurality of first sensor lines formed on the substrate in one direction;
- a plurality of second sensor lines spaced apart from the first sensor lines and formed between the first sensor lines;
- an oscillation circuit connected to the first sensor lines and the second sensor lines;
- a first signal line connecting the first sensor lines and the oscillation circuit;
- a second signal line connecting the second sensor lines and the oscillation circuit;
- first signal connection points connecting the first signal line and the first sensor lines;
- and
- second signal connection point connecting the second signal line and the second sensor lines,
- wherein an extending direction of the first sensor line from the first signal connection point is opposite to an extending direction of the second sensor line from the second signal connection point.
7 more elements
Dependencies are inferred from the claim text.