Array substrate and manufacturing method thereof, and display device

A manufacturing method of an array substrate, comprising:

• forming a first gate line, a plurality of data lines, a plurality of first transistors and a plurality of first capacitive lines on a substrate;
• wherein the first gate line has a first side and a second side opposite to each other in a width direction of the first gate line;
• a data line and the first gate line cross, and are insulated from each other;
• a gate and a first electrode of a first transistor are coupled to the first gate line and the data line, respectively;
• and
• forming a plurality of first pixel electrodes on the substrate;
• wherein a first pixel electrode is located on the first side of the first gate line, and is coupled to a second electrode of the first transistor;
• wherein an orthographic projection of a first capacitive line on the substrate is overlapped with an orthographic projection of the first pixel electrode on the substrate;
• the first capacitive line includes a first conductive segment whose extending direction is substantially parallel to an extending direction of the first gate line, and the first conductive segment is proximate to the first gate line;
• the first conductive segment is provided with a first break therein, and the first break is located on a side of a charging coupling point away from the data line, and deviates from a middle subsection of the first conductive segment;
• the charging coupling point is a coupling position of the first pixel electrode and the second electrode of the first transistor, and the middle subsection of the first conductive segment is a portion of the first conductive segment that is located in the middle and has a length of ⅓ of a total length of the first conductive segment;
• an orthographic projection, on the substrate, of a portion of the first conductive segment located on a side of the first break away from the middle subsection is overlapped with an orthographic projection of the second electrode of the first transistor on the substrate.