Display substrate and fabricating method thereof, and system for fabricating display substrate and display device

A system for fabricating a display substrate comprising:

• a circuit forming unit configured to form a first circuit for driving a first sub-pixel, a second circuit for driving a second sub-pixel, a third circuit for driving a third sub-pixel, and a fourth circuit for driving a fourth sub-pixel;
• a first mask plate comprising a plurality of first openings, each first opening corresponding to one first sub-pixel and one fourth sub-pixel, the first mask plate configured to form the first sub-pixel on the first circuit and the fourth circuit;
• a second mask plate;
• plate comprising a plurality of second openings, each second opening corresponding to one second sub-pixel and one fourth sub-pixel, the second mask plate configured to form the second sub-pixel on the second circuit and the fourth circuit;
• and
• a third mask plate, comprising a plurality of third openings, each third opening corresponding to one third sub-pixel and one fourth sub-pixel, the third mask plate configured to form the third sub-pixel on the third circuit and the fourth circuit, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel on the fourth circuit are superposed to form the fourth sub-pixel.

A display substrate, comprising a plurality of pixels, each of which comprises a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel arranged in a first direction;

• wherein the fourth sub-pixel in a first pixel is adjacent to the first sub-pixel in a second pixel, and the second pixel is adjacent to the first pixel and at a side of the first pixel in the first direction;
• wherein the fourth sub-pixel in the first pixel is adjacent to the second sub-pixel in a third pixel, and the third pixel is adjacent to the first pixel and at a side of the first pixel in a second direction perpendicular to the first direction;
• and
• wherein the fourth sub-pixel in the first pixel is adjacent to the third sub-pixel in the first pixel.