Merged floating pixels in a touch screen

摘要

Touch sensor panel configurations for reducing wobble error for a stylus translating on a surface over and between electrodes of the touch sensor panel are disclosed. In some examples, electrodes with more linear signal profiles are correlated with lower wobble error. In some examples, diffusing elements formed of floating segments of conductive materials can diffuse signal from a stylus to a plurality of electrodes, thus, making the signal profiles associated with the electrodes more linear. In addition, diffusing elements can be configured to improve the optical uniformity of the touch sensor panel. In some examples, the diffusing elements can be formed on the same layer as floating dummy pixels and resemble a plurality of merged floating dummy pixels. PERIPHERALS 130 DISPLAY 102 PANEL HOST PROCESSOR PROCESSOR 106 132 PROGRAM PANEL SUBSYSTEM 108 110 114 ANALOG CHANNEL DRIVER CHANNELS SCAN LOGIC LOGIC TOUCH SENSOR PANEL