Display substrate, display panel and display device

A display substrate, comprising:

• a base substrate;
• a plurality of sub-pixels arranged in an array along a first direction and a second direction on the base substrate, so as to form a plurality of rows of sub-pixels and a plurality of columns of sub-pixels, respectively, wherein at least one sub-pixel comprises a light-emitting element;
• a first initialization voltage signal line disposed on the base substrate, wherein the first initialization voltage signal line is configured to transmit a first initialization voltage signal;
• a first electrode layer disposed on the base substrate, wherein the light-emitting element of the at least one sub-pixel comprises a first electrode located in the first electrode layer;
• and
• a pixel defining layer disposed on a side of the first electrode layer away from the base substrate, wherein the at least one sub-pixel comprises a pixel opening located in the pixel defining layer, an orthographic projection of the pixel opening of the at least one sub-pixel on the base substrate falls into an orthographic projection of the first electrode of the at least one sub-pixel on the base substrate,
• wherein the at least one sub-pixel comprises a plurality of first sub-pixels, and the plurality of first sub-pixels are sub-pixels of a first color;
• orthographic projections of a plurality of second initialization voltage signal sub- lines on the base substrate partially overlap with orthographic projections of the first electrodes of the plurality of first sub-pixels on the base substrate, respectively;
• orthographic projections of the pixel openings of the plurality of first sub-pixels have respective first sides and respective second sides on the base substrate, respectively, orthographic projections of the pixel openings of the plurality of first sub-pixels have respective midpoints on the base substrate, respectively, the midpoint is a midpoint of a virtual line segment of the orthographic projection of the pixel opening on the base substrate extending in the first direction, and the first side and the second side are opposite sides relative to the midpoint in the first direction;
• and
• wherein the display substrate further comprises:
• a first conductive layer and a second conductive layer which are disposed on the base substrate;
• a first insulation layer located between the first conductive layer and the second conductive layer;
• a plurality of via holes located in the first insulation layer;
• the second conductive layer is located between the first conductive layer and the first electrode layer, and the first initialization voltage signal line is located in the first conductive layer;
• for at least two first sub-pixels, orthographic projections of some via holes among the plurality of via holes on the base substrate are located on the first side of the midpoint of the pixel opening of one first sub-pixel among the two first sub-pixels, orthographic projections of some other via holes among the plurality of via holes on the base substrate are located on the second side of the midpoint of the pixel opening of the other first sub-pixel among the two first sub-pixels.