Touch substrate, touch control display panel, and method of fabricating touch substrate

A method of fabricating a touch substrate, comprising:

• forming a first initial mesh electrode layer on a base substrate;
• patterning the first initial mesh electrode layer using a first mask plate to form a first mesh electrode layer comprising a plurality of first mesh electrodes;
• forming an insulating layer on a side of the first mesh electrode layer distal to the base substrate;
• forming a second initial mesh electrode layer on a side of the insulating layer distal to the first mesh electrode layer;
• and
• patterning the second initial mesh electrode layer using a second mask plate to form a second mesh electrode layer comprising a plurality of second mesh electrodes;
• wherein the first mask plate comprising a plurality of first light-blocking regions corresponding to the plurality of first mesh electrodes, the plurality of first light-blocking regions arranged substantially along a first direction, each of the plurality of first light-blocking regions extending substantially along a second direction;
• and
• a respective first light-blocking region of the plurality of first light-blocking regions comprises a plurality of first zig zag portions;
• wherein the second mask plate comprising a plurality of second light-blocking regions corresponding to the plurality of second mesh electrodes, the plurality of second light-blocking regions arranged substantially along a third direction, each of the plurality of second light-blocking regions extending substantially along a fourth direction;
• and
• a respective second light-blocking region of the plurality of second light-blocking regions comprises a plurality of second zig zag portions;
• wherein the touch substrate is formed to comprise a plurality of local zig zag structures limited in a plurality of local regions, respectively, a respective local zig zag structure comprising a respective first portion from the plurality of first mesh electrodes and a respective second portion from the plurality of second mesh electrodes, an orthographic projection of the respective first portion on the base substrate at least partially overlaps with an orthographic projection of the respective second portion on the base substrate;
• wherein, limited in a respective local region of the plurality of local regions, a first zig zag contour along a first boundary and a second zig zag contour along a second boundary of the respective first portion are co-directional and parallel to each other, the first zig zag contour and the second zig zag contour being arranged along the first direction;
• and
• limited in a respective local region of the plurality of local regions, a third zig zag contour along a third boundary and a fourth zig zag contour along a fourth boundary of the respective second portion are co-directional and parallel to each other, the third zig zag contour and the fourth zig zag contour being arranged along the third direction;
• and
• wherein, limited in a respective local region of the plurality of local regions,
• a first virtual central line of the respective first portion is a zig zag line, the first virtual central line being equidistant to the first zig zag contour and to the second zig zag contour;
• the first zig zag contour, the first virtual central line, and the second zig zag contour are co-directional and parallel to each other;
• a second virtual central line of the respective second portion is a zig zag line, the second virtual central line being equidistant to the third zig zag contour and to the fourth zig zag contour;
• and
• the third zig zag contour, the second virtual central line, and the fourth zig zag contour are co-directional and parallel to each other.