Apple Inc.

Zhou Lu

Isaac Wing-Tak Chan

Rangarajan Krishnan

Qingbo Guo

Chao Zhang

Justin Zachary Wu

Karan S Jain

Jeffrey M Weisse

Sung Yul Chu

Disclosed herein is a touch sensor panel that includes a substrate that includes a bending portion, and a plurality of electrodes formed in a first layer on a first surface of the substrate, the plurality of electrodes forming first electrodes and second electrodes and the plurality of electrodes defining an active area for touch sensing. The touch sensor panel further includes a plurality of routing traces formed in the first layer on the first surface of the substrate in a border area outside the active area and formed from the first material (copper), a plurality of bridges formed in a second layer, the plurality of bridges connecting groups of the plurality of electrodes to form the first electrodes and formed from a second material (silver), and sensing circuitry connected to the substrate and to the plurality of routing traces at a location after the bending portion.

Touch sensor panel with reduced dimensions and cross-coupling

In some examples, a touch screen includes resistors between the touch electrodes and routing traces. In some examples, the resistors can include a transparent conductive material included in the touch electrodes of the touch screen. The resistors can be located in a border region of the touch screen that can surround an active area of the touch screen that can include the touch electrodes and display pixels of the touch screen, for example. In some examples, the resistors included in the touch screen can have different resistances from each other and the same outer dimensions as one another. The resistors can reduce the variation in resistance from channel to channel in the touch screen, which can improve touch screen performance, for example.

Touch sensor panel including resistors for improved input signal

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Santa Clara, CA, United States of America

Zhou Lu