Display panel and display device

A display device, wherein the display device comprises a display panel, wherein the display panel comprises a display area and a non-display area disposed around the display area;

• the non-display area comprises a test circuit, the test circuit comprises a plurality of signal lines disposed in parallel with each other along a first direction, the plurality of signal lines are used for transmitting a test signal;
• a plurality of switch groups disposed in a same row along a second direction, each of the plurality of switch groups is in sequence disposed a first switch and a second switch along the second direction, the first switch and the second switch are disposed parallel with each other and in the same row along the second direction, wherein the second direction and the first direction are perpendicular to each other;
• a plurality of transmission line groups disposed opposite to the corresponding plurality of switch groups, and the plurality of transmission line groups are connected the plurality of signal lines and the corresponding plurality of switch groups for transmitting the test signal by the plurality of signal lines to the corresponding plurality of switch groups;
• and
• the display area comprises a plurality of pixel groups disposed in parallel with each other along the second direction, each of the plurality of pixel groups is in sequence disposed a first pixel and a second pixel, the first pixel and the second pixel are disposed in parallel with each other along the second direction;
• the test signal is used for performing a test on the corresponding first pixel and the second pixel by the plurality of switch groups, or the test signal is used for performing a test on the corresponding first pixel or the second pixel by the plurality of switch groups.