Display devices and array baseplates

An array substrate, comprising:

• a pixel region and a peripheral region surrounding the pixel region, wherein the peripheral region comprises a chip bonding region, and wherein the array substrate comprises:
• a substrate;
• a pixel circuit, a data signal line, a test pad group, and a test switch circuit that are provided on a side of the substrate, wherein the data signal line is electrically connected with the pixel circuit, the test pad group is in the chip bonding region, the test switch circuit is in the peripheral region and at a side of the pixel region away from the chip bonding region, and the test switch circuit is configured to connect or disconnect the data signal line and the test pad group.