Display panel and driving method thereof and display device

A display panel driving method, wherein the display panel comprises a plurality of first pixel units and at least one second pixel unit, wherein each of the first pixel units and the second pixel unit comprises a plurality of sub-pixels, respectively, each of the sub-pixels in the first pixel unit is in a sub-pixel region, and emission color of two of the sub-pixels in the first pixel unit is a first color, the plurality of sub-pixels in the second pixel unit is in a plurality of sub-pixel regions arranged in an array, emission color of two adjacent sub-pixels in the second pixel unit is the first color, and the two adjacent sub-pixels are in the same sub-pixel region, and the method comprises:

• determining a group of gamma curves corresponding to the first pixel unit, wherein the group of gamma curves comprises gamma curves corresponding to the sub-pixels having different colors in the first pixel unit, and the gamma curve indicates an association relationship between a gamma voltage and a light-emitting current of the sub-pixel having a corresponding color;
• for each gamma curve in the group of gamma curves, adjusting the gamma curve according to a target light-emitting current of the sub-pixel having a corresponding color to obtain an adjusted gamma curve;
• and
• driving the sub-pixels in the first pixel units and the second pixel unit to emit light through the group of adjusted gamma curves.

A display device, comprising a display panel, wherein the display panel comprises a plurality of first pixel units and at least one second pixel unit, wherein each of the first pixel units and the second pixel unit comprises a plurality of sub-pixels, respectively;

• each of the sub-pixels in the first pixel unit is in a sub-pixel region, and emission color of two of the sub-pixels in the first pixel unit is a first color;
• the plurality of sub-pixels in the second pixel unit is in a plurality of sub-pixel regions arranged in an array, emission color of two adjacent sub-pixels in the second pixel unit is the first color, and the two adjacent sub-pixels are in the same sub-pixel region;
• and
• when the first pixel units and the second pixel unit are in a white balance state, a light-emitting current of the sub-pixel whose emission color is a second color is equal to a light-emitting current of the sub-pixel whose emission color is a third color, and is two times a light-emitting current of the sub-pixel whose emission color is the first color, light-emitting currents of the sub-pixels whose emission colors are the same are equal, and the first color, the second color and the third color are different from one another.