Display substrate and display device having shielding pattern for shielding compensation connection portion

A display substrate, comprising a base substrate, and a plurality of sub-pixels and a plurality of initialization signal lines arranged on the base substrate, wherein each sub-pixel in the plurality of sub-pixels comprises a sub-pixel driving circuitry and a shielding pattern, and the sub-pixel driving circuitry comprises a driving transistor and a compensation transistor;

• a first electrode of the compensation transistor is coupled to a second electrode of the driving transistor, and a second electrode of the compensation transistor is coupled to a gate electrode of the driving transistor;
• the compensation transistor comprises a compensation active layer, the compensation active layer comprises a first compensation channel portion, a second compensation channel portion and a compensation connection portion, and the compensation connection portion is coupled to the first compensation channel portion and the second compensation channel portion;
• and
• the shielding pattern is coupled to a corresponding initialization signal line, and an orthogonal projection of the shielding pattern onto the base substrate at least partially overlaps with an orthogonal projection of the compensation connection portion onto the base substrate;
• wherein the initialization signal line comprises at least a portion extending in a first direction, and the shielding pattern comprises at least a portion extending in a second direction intersecting the first direction;
• the sub-pixel driving circuitry further comprises a first conductive connection portion, a first end of the first conductive connection portion is coupled to the second electrode of the compensation transistor, and a second end of the first conductive connection portion is coupled to the gate electrode of the driving transistor;
• and
• in the first direction, an orthogonal projection of the shielding pattern onto the base substrate, an orthogonal projection of the second compensation channel portion onto the base substrate, and an orthogonal projection of the first end of the first conductive connection portion onto the base substrate are sequentially arranged.