Vacuum laminating device

A vacuum laminating device for laminating a first object and a second object together, comprising a first platform, a second platform, and a lifting pushrod that are receivable in a vacuum chamber, wherein

• a bottom surface of the first platform is provided with a first adsorbing surface suitable for adsorbing the first object;
• the second platform is disposed below the first platform and drivable by a driving unit to move up and down below the first platform so as to make laminating contact with the first platform, and an upper surface of the second platform is provided with a second adsorbing surface facing the first adsorbing surface and being suitable for adsorbing portions of the second object other than a central portion of the second object;
• the lifting pushrod is disposed within a region where a central region of the second adsorbing surface is located such that the central portion of the second object is not adsorbed by the second platform, and is configured to be movable up and down independently below the first platform so as to push up the central portion of the second object to cause the central portion to make laminating contact with the first object before other portions of the second object on either side of the central portion make laminating contact with the first object;
• and the second platform is further configured to, in a state where the central portion of the second object is in laminating contact with the first object and the lifting pushrod is directly below a center region of the first adsorbing surface, move the other portions of the second object on either side of the central portion upward so that the first object and the second object are completely laminated with each other.