Display device and array substrate thereof

A display device comprising an array substrate, wherein the array substrate comprises a plurality of pixel units arranged in an array;

• each pixel unit comprises a pixel electrode, a thin film transistor (TFT), a touch electrode, a scan line, and a data line;
• the scan lines are configured along a first direction;
• the data lines are configured along a second direction;
• the scan lines and data lines cross each other;
• the pixel electrodes are connected to the scan lines and the data lines through the TFTs 12;
• each pixel unit further comprises a first metallic line configured along the first direction and a second metallic line configured along the second direction;
• the first metallic lines are disposed in a same layer as the scan lines;
• the second metallic lines are disposed in a same layer as the data lines;
• two neighboring first metallic lines along the first direction are connected by a second metallic line;
• the first metallic lines are connected to the second metallic lines through first vias;
• and the second metallic lines are connected to touch electrodes through second vias.