Array base plate, method for manufacturing same, and display panel

An array base plate, comprising:

• a substrate;
• an active layer disposed on the substrate;
• an etching protective layer and an ohmic contact layer, wherein the etching protective layer and the ohmic contact layer are disposed in a same layer, the etching protective layer is located on a body portion of the active layer, and the ohmic contact layer is located on a first conduction portion and a second conduction portion of the active layer;
• a source disposed on the ohmic contact layer located on the first conduction portion of the active layer;
• and
• a drain disposed on the ohmic contact layer located on the second conduction portion of the active layer;
• wherein a material of the ohmic contact layer comprises a metal or metal oxide, and a material of the etching protective layer comprises an Si-based insulating material.