Method for replacing or patching element of display device

A method for replacing an element of a display device, comprising:

• forming a structure with a first liquid layer between a first electrode of a first micro device and a conductive pad of a substrate and two opposite surfaces of the first liquid layer being respectively in contact with the first electrode and the conductive pad, wherein a lateral length of the first micro device is equal to or smaller than 20 μm, such that the first micro device is gripped by a sticking force produced by the first liquid layer between the first micro device and the conductive pad;
• evaporating the first liquid layer such that the first electrode is bound to and is in electrical contact with the conductive pad;
• determining if the first micro device is malfunctioned or misplaced relative to the conductive pad by an optical inspection precedure;
• removing the first micro device when the first micro device is malfunctioned or misplaced from the conductive pad;
• forming another structure with a second liquid layer between a second electrode of a second micro device and the conductive pad of the substrate and two opposite surfaces of the second liquid layer being respectively in contact with the second electrode and the conductive pad, wherein a lateral length of the second micro device is equal to or smaller than 20 μm, such that the second micro device is gripped by a sticking force produced by the second liquid layer between the second micro device and the conductive pad;
• and
• evaporating the second liquid layer such that the second electrode is bound to and is in electrical contact with the conductive pad.