A method for manufacturing the display device (70, 80) comprises: providing a first flexible substrate (101) comprising a first and second surfaces and a second flexible substrate (102) comprising a third and fourth surfaces; joining the second surface of the first flexible substrate with the third surface of the second flexible substrate by a connecting element (11) to form a laminated structure, wherein the first surface of the first flexible substrate (101) is a first outer surface of the laminated structure, and the fourth surface of the second flexible substrate (102) is a second outer surface of the laminated structure; forming a first flexible display element layer (10a) and a second flexible display element layer (10b) respectively on the first and second outer surfaces of the laminated structure; separating the first flexible substrate (101) from the second flexible substrate (102) of the laminated structure. The manufacturing method can achieve simultaneous processing of two substrates during part of the manufacturing technology, thus improving the production efficiency and reducing the production costs.