Display panel including at least one power supply structure including common electrode configured to have predetermined area, and display device

A display panel, comprising:

• a pixel array comprising a plurality of subpixels, each subpixel comprising at least one light-emitting diode that comprises a first electrode and a second electrode;
• and
• an array substrate comprising a first power supply structure configured to provide a first power supply voltage, a second power supply structure configured to provide a second power supply voltage, and a plurality of pixel circuits,
• wherein the first power supply structure is electrically connected to the first electrode of the at least one light-emitting diode by a pixel circuit of the plurality of pixel circuits, and the second power supply structure is electrically connected to the second electrode of the at least one light-emitting diode,
• wherein at least one of the first power supply structure and the second power supply structure comprises at least one common electrode,
• wherein the display panel further comprises a display region having an area of S0, and an area of an orthographic projection of a portion of the at least one common electrode in the display region on a plane of the display panel is defined as S1, where S1≥0.5S0,
• wherein the first power supply structure comprises the at least one common electrode that is configured to be a first common electrode, and the first common electrode is arranged at a side of the plurality of pixel circuits that is close to the pixel array,
• wherein the array substrate further comprises a plurality of first auxiliary electrodes arranged in the same layer as the first common electrode, and each first auxiliary electrode is insulated from the first common electrode,
• wherein each of the plurality of pixel circuits comprises a transistor that comprises a first electrode, a second electrode and a control electrode, and the first electrode of the transistor is electrically connected to the first electrode of the at least one light-emitting diode by the first auxiliary electrode, and
• wherein the second power supply structure is disposed between the first common electrode and the at least one light-emitting diode.

A display device, comprising a display panel, the display panel comprising:

• a pixel array comprising a plurality of subpixels, each subpixel comprising at least one light-emitting diode that comprises a first electrode and a second electrode;
• and
• an array substrate comprising a first power supply structure configured to provide a first power supply voltage, a second power supply structure configured to provide a second power supply voltage, and a plurality of pixel circuits,
• wherein the first power supply structure is electrically connected to the first electrode of the at least one light-emitting diode by a pixel circuit of the plurality of pixel circuits, and the second power supply structure is electrically connected to the second electrode of the at least one light-emitting diode,
• wherein at least one of the first power supply structure and the second power supply structure comprises at least one common electrode,
• wherein the display panel further comprises a display region having an area of S0, and an area of an orthographic projection of a portion of the at least one common electrode in the display region on a plane of the display panel is defined as S1, where S1≥0.5S0,
• wherein the first power supply structure comprises the at least one common electrode that is configured to be a first common electrode, and the first common electrode is arranged at a side of the plurality of pixel circuits that is close to the pixel array;
• wherein the array substrate further comprises a plurality of first auxiliary electrodes arranged in the same layer as the first common electrode, and each first auxiliary electrode is insulated from the first common electrode;
• wherein each of the plurality of pixel circuits comprises a transistor that comprises a first electrode, a second electrode and a control electrode, and the first electrode of the transistor is electrically connected to the first electrode of the at least one light-emitting diode by the first auxiliary electrode;
• wherein the array substrate further comprises a plurality of second auxiliary electrodes arranged in the same layer as the first common electrode, and each second auxiliary electrode is insulated from the first common electrode;
• and
• wherein the second power supply structure is electrically connected to the second electrode of the at least one light-emitting diode by the second auxiliary electrode.