Display substrate and display device

A display device, comprising a display area;

• wherein the display area comprises:
• a first display sub-area;
• and
• a second display sub-area, wherein:
• a distribution density of pixels in the first display sub-area is greater than a distribution density of pixels in the second display sub-area;
• the first display sub-area comprises a plurality of groups of pixels, each group of pixels comprises a first sub-pixel, two second sub-pixels and a third sub-pixel, the first sub-pixel and one of the two second sub-pixels forms a first pixel element and the third sub-pixel and the other one of the two second-sub-pixel forms a second pixel element;
• the second display sub-area comprises a plurality of third pixel elements, each third pixel element comprises a first sub-pixel, a second sub-pixel and a third sub-pixel arranged adjacent to each other, the plurality of third pixel elements are arranged in a row direction to form a plurality of rows of pixel, the plurality of rows of pixels are arranged along a column direction, and lines connecting centers of the first sub-pixel, the second sub-pixel and the third sub-pixel in each third pixel elements form a triangle;
• and,
• at least two of distances between sub-pixels located at an edge of the first display sub-area close to the second display sub-area and sub-pixels respectively adjacent thereto and located at an edge of the second display sub-area close to the first display sub-area are different.