Display panel and control method therefor, and display device

A display device, comprising:

• a power supply assembly, and a display panel;
• wherein
• the display panel comprises:
• a substrate;
• and
• a plurality of pixels on the substrate, wherein at least one of the plurality of pixels comprises a plurality of sets of sub-pixels, at least one set of the plurality of sets of sub-pixels comprising a plurality of sub-pixels of a same color;
• wherein each of the plurality of sub-pixels comprises:
• a drive circuit, coupled to a first control line, a data line, a first power line, and a first node, and configured to control on or off between the first power line and the first node based on a first control signal supplied by the first control line and a data signal supplied by the data line and to control a potential of the first node based on the data signal and a first power signal supplied by the first power line;
• a compensation circuit, coupled to a second control line, a sensing line, and the first node, and configured to control on or off between the sensing line and the first node based on a second control signal supplied by the second control line;
• a light-emitting element, coupled to the first node and a second power line, and configured to emit light based on the potential of the first node and a second power signal supplied by the second power line;
• and
• a shielding circuit, connected in series to any light-emitting channel, and configured to switch off the light-emitting channel in response to a dark spot of the light-emitting element, wherein the light-emitting channel comprises a first light-emitting channel and a second light-emitting channel, wherein the first light-emitting channel comprises a channel over which the first power line is coupled to the light-emitting element, and the second light-emitting channel comprises a channel over which the sensing line is coupled to the light-emitting element;
• wherein the power supply assembly is coupled to the display panel and is configured to supply power to the display panel;
• and
• wherein the shielding circuit comprises a shielding resistor;
• and, in a direction parallel to a bearing face of the substrate, at least one terminal of the shielding resistor comprises a rib structure, wherein a recess indented towards a side of the shielding resistor in a direction perpendicular to the substrate is formed in the rib structure.