Display device and display device driving method

A display device includes a display panel, multiple first light sensors and multiple second light sensors. Each of multiple pixel circuits of the display panel includes multiple sub-pixel circuits. The first light sensors are coupled to a first bias power supply, and are configured to generate a plurality of first detection signals according to ambient light. The second light sensors are coupled to a second bias power supply, and are configured to generate a plurality of second detection signals according to ambient light. The first bias power supply and the second bias power supply are different, and are arranged alternately with each other. A first parts of the sub-pixel circuits are arranged relative to the first light sensors according to a first arrangement. A second portions of the sub-pixel circuits are arranged relative to the second light sensors according to a second arrangement.