Display panel and display device

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

• a display area comprising a plurality of display lines and a plurality of display sub-pixels arranged in arrays;
• and
• a non-display area surrounding the display area,
• wherein the non-display area further comprises a dummy sub-pixel, a driver chip, a feedback line and a compensation line;
• wherein the dummy sub-pixel and the plurality of display sub-pixels are provided with a light-emitting element and a pixel driving circuit with the same internal configuration;
• wherein the light-emitting element is provided with a first pole and a second pole;
• wherein in the dummy sub-pixel and the plurality of display sub-pixels, the first pole of the light-emitting element is connected to the pixel driving circuit;
• wherein in the plurality of display sub-pixels, the second pole of the light-emitting element is connected to a common ground terminal, and the pixel driving circuit is connected to the driver chip through the display line;
• wherein in the dummy sub-pixel, the second pole of the light-emitting element is connected to the driver chip through the feedback line, and the pixel driving circuit is connected to the driver chip through the compensation line;
• and
• wherein the driver chip is configured to acquire a current signal of a light-emitting element in the dummy sub-pixel through the feedback line, and to generate a compensation signal when the current signal fed back by the feedback line is not equal to a preset threshold value, wherein the compensation signal is inputted to a pixel driving circuit of the dummy sub-pixel through the compensation line to compensate the light-emitting element of the dummy sub-pixel, and wherein the driver chip is further configured to generate a display compensation signal based on the compensation signal when the compensation signal makes the current signal fed back by the feedback line equal to the preset threshold value, and the display compensation signal is transmitted to the pixel driving circuit of the display sub-pixel through the display line.