Display panel, display device, and optical compensation method

An optical compensation method for a display panel, the display panel including a control chip, a photo-sensing element, a feedback circuit electrically connected to the photo-sensing element, a light-emitting element, and a pixel circuit electrically connected to the light-emitting element, the photo-sensing element electrically connected to the control chip through the feedback circuit, the light-emitting element electrically connected to the control chip through the pixel circuit, the method comprising:

• a feedback stage;
• a data analysis stage;
• and
• a compensation stage, wherein at the feedback stage, the photo-sensing element is turned on, obtains optical information, generates a brightness signal according to the optical information, and sends the brightness signal to the control chip through the feedback circuit;
• at the data analysis stage, the control chip compares the brightness signal with a preset value, and generates a compensation signal based on a difference between the brightness signal and the preset value;
• and at the compensation stage, the control chip sends the compensation signal to the pixel circuit, and the pixel circuit drives the light-emitting element to emit light according to the compensation signal.

A display device, comprising:

• a display panel, wherein the display panel includes:
• a display area, the display area including a first display area and a second display area, the second display area at least partially surrounding the first display area;
• a light-emitting element, the light-emitting element including a plurality of first light-emitting elements located in the first display area and a plurality of second light-emitting elements located in the second display area;
• a pixel circuit, the pixel circuit including a first pixel circuit and a second pixel circuit, the first pixel circuit electrically connected to at least one of the plurality of first light-emitting elements, the second pixel circuit electrically connected to at least one of the plurality of second light-emitting elements, and a number of the first light-emitting element connected to the first pixel circuit being greater than a number of the second light-emitting elements connected to the second pixel circuit;
• and
• an optical detection unit, the optical detection unit including a first optical detection unit in the first display area, the first optical detection unit used for detecting brightness of at least one of the plurality of first light-emitting elements in the first display area.