Display substrate, display panel and display device

A display panel, comprising a display substrate, an opposite substrate disposed opposite to the display substrate, and a liquid crystal layer disposed between the display substrate and the opposite substrate, wherein

• the display substrate comprises a display area and a peripheral area surrounding the display area;
• a first base;
• a plurality of pixel units located in the display area and on the first base;
• each of the plurality of pixel units comprises a thin film transistor and a first electrode, and in each pixel unit, a drain of the thin film transistor is electrically coupled with the first electrode through a first via hole penetrating through an interlayer insulating layer;
• and
• an auxiliary functional layer located in the display area and on a side, away from the first base, of a layer where the first electrode is located;
• wherein, an orthographic projection of the auxiliary functional layer on the first base covers at least a part of an orthographic projection of the first via hole on the first base, and defines an active display area of the first electrode,
• the opposite substrate comprises:
• a second base;
• and
• a second electrode located on a side of the second base proximal to the liquid crystal layer, and an orthographic projection of the second electrode on the first base covers an orthographic projection of any first electrode on the first base, and wherein
• the first electrode comprises a reflective electrode, wherein
• the auxiliary functional layer comprises a plurality of hollow-out patterns, and orthographic projections of active display areas of first electrodes are overlapped with orthographic projections of the hollow-out patterns on the first base one to one.

A display panel, comprising a display substrate, an opposite substrate disposed opposite to the display substrate, and a liquid crystal layer disposed between the display substrate and the opposite substrate, wherein

• the display substrate comprises a display area and a peripheral area surrounding the display area;
• a first base;
• a plurality of pixel units located in the display area and on the first base;
• each of the plurality of pixel units comprises a thin film transistor and a first electrode, and in each pixel unit, a drain of the thin film transistor is electrically coupled with the first electrode through a first via hole penetrating through an interlayer insulating layer;
• and
• an auxiliary functional layer located in the display area and on a side, away from the first base, of a layer where the first electrode is located;
• wherein, an orthographic projection of the auxiliary functional layer on the first base covers at least a part of an orthographic projection of the first via hole on the first base, and defines an active display area of the first electrode,
• the opposite substrate comprises:
• a second base;
• and
• a second electrode located on a side of the second base proximal to the liquid crystal layer, and an orthographic projection of the second electrode on the first base covers an orthographic projection of any first electrode on the first base, and wherein
• the first electrode comprises a reflective electrode, wherein
• the display substrate further comprises a plurality of electrode groups arranged at intervals along a first direction, each of the electrode groups comprising a plurality of the first electrodes arranged at intervals along a second direction;
• the first direction and the second direction intersect;
• the first electrode further comprises an inactive display area;
• the auxiliary functional layer comprises a plurality of auxiliary portions arranged at intervals along the first direction;
• orthographic projections of inactive display areas of the first electrodes in each electrode group on the first base are substantially overlapped with an orthographic projection of one of the auxiliary portions corresponding to the electrode group on the first base.