Capacitive sensing device comprising cross-shaped sensing elements

摘要

A capacitive sensing device comprises first electrodes in which a plurality of first sensing elements are arranged in rows and columns, and second electrodes in which a plurality of second sensing elements are arranged in rows and columns. Each of the first sensing elements has an iron cross shape, and each of the second sensing elements has a double-cross shape in which a first cross and a second cross overlap each at a shared center point and the second cross is rotated with respect to the first cross. Capacitances are formed between the first sensing elements and the second sensing elements.

主权项

1. A capacitive sensing device, comprising:
first electrodes comprising rows and columns of first sensing elements; and second electrodes comprising rows and columns of second sensing elements, wherein each of the first sensing elements has the shape of an iron cross, wherein each of the second sensing elements has the shape of a double-cross in which a first cross has four arms radiating in straight lines, respectively from a central point of the second sensing element, a second cross has four arms radiating from in straight lines, respectively, from central point, whereby the first and second crosses overlap each other the central point, and the second cross is rotated about the central point with respect to the first cross, wherein the four arms of the first cross have the same length as measured from the central point, and the four arms of the second cross have the same length as measured from the central point, and wherein capacitances are formed between the first sensing elements and the second sensing elements.