Touch display apparatus

A touch display apparatus, comprising:

• a pixel array substrate;
• a touch substrate opposite to the array substrate;
• a plurality of pixel regions defined on the pixel array substrate or on the touch substrate, each of the pixel region having a first pixel pitch Ppx along a first direction and a second pixel pitch Ppy along a second direction intersecting the first direction;
• and
• a plurality of touch electrodes disposed on the touch substrate, each of the touch electrodes having a plurality of touch patterns and a plurality of touch internal spaces alternating with the touch patterns, each of the touch patterns having a plurality of bent segments and each of the bent segments having a second touch pitches Pty along the second direction;
• wherein a width of one of the touch patterns and a width of one of the.touch internal spaces that are adjacent to each other constitute a first touch pitch Ptx along the first direction;
• wherein the first pixel pitch Ppx, the second pixel pitch Ppy, the first touch pitch Ptx and the second touch pitch Pty satisfy at least one of the following equations (1) and (2):
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