Marking method and device, and repair system for display panel

A marking device, comprising a magnifying component, a marking component, an adjusting component and an auxiliary adjusting component, wherein

• the magnifying component is configured to magnify a target position point on a target object;
• the marking component is configured to mark the target position point on the target object in accordance with the magnified target position point,
• the adjusting component is connected to the marking component and configured to adjust a marking angle of the marking component to align the marking component with the target position point, and
• the auxiliary adjusting component is disposed in the marking component and configured to assist the adjusting component in adjusting the marking angle of the marking component, wherein
• the marking component comprises:
• an inkjet configured to jet ink to the target position point so as to mark the target position point,
• the inkjet comprises an ink cartridge and a nozzle communicated with the ink cartridge, the auxiliary adjusting component comprises an infrared laser aligner, the infrared laser aligner is disposed in the nozzle and infrared rays emitted by the infrared laser aligner are collinear with an axis of the nozzle;
• and
• the adjusting component is configured to adjust an ink jetting angle of the nozzle in accordance with the infrared rays emitted by the infrared laser aligner.