Method for correcting display panel brightness based on brightness correction coefficient

A brightness correcting method of a display panel, comprising following steps:

• obtaining a displayed image of the display panel, wherein the displayed image comprises a first area and a plurality of second areas disposed surrounding the first area, a width of the first area and a width of each of the second areas are both one third of a width of the displayed image, and a length of the first area and a length of each of the second areas are both one third of a length of the displayed image;
• obtaining a brightness of the first area and a brightness of each of the second areas;
• calculating a brightness correction factor of each of the second areas according to the brightness of the first area and the brightness of each of the second areas;
• amending the brightness correction factor;
• and
• correcting a brightness of the display panel according to an amended brightness correction factor,
• wherein the step of correcting the brightness of the display panel according to the brightness correction factor comprises following steps:
• adjusting a compensation value of the display panel according to the brightness correction factor;
• and
• compensating the display panel using an adjusted compensation value to correct the brightness of the display panel,
• wherein the brightness correction factor comprises a film position identification code, the film position identification code comprises identifiers of different areas and identifiers of different film positions of the display panel, and the film position identification code is configured to identify the brightness correction factor for calling a corresponding brightness correction factor when correcting the brightness of the display panel.