Array substrate, display apparatus, and method of fabricating array substrate

A method of fabricating an array substrate, comprising forming a display area having a plurality of subpixels;

• wherein forming the display area comprises forming a regular display sub-area and forming a display-bonding sub-area;
• forming the plurality of subpixels comprises forming a plurality of first subpixels in the display-bonding sub-area and forming a plurality of second subpixels in the regular display sub-area;
• wherein the method comprises forming a base substrate extending throughout the regular display sub-area and the display-bonding sub-area;
• and
• forming a plurality of thin film transistors on a first side of the base substrate and respectively in the plurality of subpixels;
• wherein forming a respective one of the plurality of first subpixels comprises:
• forming a bonding pad on a second side of the base substrate, wherein the second side is opposite to the first side;
• forming a lead line electrically connecting a respective one of the plurality of thin film transistors to the bonding pad, wherein the lead line is unexposed in the array substrate;
• and
• forming a via extending through the base substrate;
• wherein the lead line is formed to extend from the first side to the second side of the base substrate through the via, to connect to the bonding pad;
• and
• the lead line is limited in the display-bonding sub-area, and/or the regular display sub-area abuts at least two sides of the display-bonding sub-area.