SINGLE LAYER CAPACITIVE IMAGING SENSORS

摘要

Embodiments of the invention generally provide an input device that includes a plurality of sensing elements that are interconnected in desired way to acquire positional information of an input object, so that the acquired positional information can be used by other system components to control a display or other useful system components. One or more of the embodiments described herein, utilizes one or more of the techniques and sensor electrode array configuration disclosed herein to reduce or minimize the number of traces and/or electrodes required to sense the position of an input object within a sensing region of the input device.

主权项

1. A capacitive image sensor, comprising:
a plurality of sensor electrodes that are disposed within a sensing region, wherein the sensing region includes a plurality of unit cells of a sensing pattern, and wherein a subset of the plurality of sensor electrodes comprises:
a first sensor electrode disposed on a first surface of a substrate, the first sensor electrode having a first dimension and a second dimension substantially perpendicular to the first dimension, the first dimension being greater than the second dimension; andtwo or more sensor electrodes of the subset of the plurality of sensor electrodes, the two or more sensor electrodes disposed adjacent to the first sensor electrode and on the first surface of the substrate, each of the two or more sensor electrodes being interdigitated with the first sensor electrode, wherein, within the sensing region, no jumper is coupled to any of the plurality of sensor electrodes.