公开(公告)号：US20170139530A1

公开(公告)日：2017-05-18

申请号：US15350727

申请日：2016-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： JAMES A. CARPENTER ,  THOMAS A. SEDER

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F2203/04103

Abstract: Touch screen systems are disclosed that include a substrate, a plurality of touch zones, and a plurality of trace lines. Some of the touch screen systems are defined wherein a first trace line has a length, defined from a touch zone to a terminal, that is greater than a length of a second trace line, and wherein the first trace line has a width that is greater than a width of the second trace line. Others of the touch screen system are defined wherein each trace line is defined as having an irregular trace pattern. Further, yet others of the touch screen systems include an insulative coating disposed over the substrate, the touch zones and the plurality of trace lines, wherein the insulative coating has a refractive index that substantially matches a refractive index of a conductive material used to form the trace lines and touch zones.