Display module, preparation method thereof and display device

The embodiment of the invention provides a display module, a preparation method thereof and a display device, and belongs to the technical field of display, the display module comprises a display panel, a flexible circuit board connected with the display panel and a driving chip connected with the flexible circuit board; the flexible circuit board further comprises a sealing piece which is arranged at the position, corresponding to the driving chip, of the flexible circuit board, and the sealing piece is used for sealing a connecting area between the driving chip and the flexible circuit board. According to the display module, the preparation method thereof and the display device provided by the embodiment of the invention, the situation that dendritic crystals grow on soldering tin at the pins of the driving chip can be reduced, and the yield of the display module is improved. 本申请实施例提供一种显示模组及其制备方法、显示装置，属于显示技术领域，包括：显示面板、与所述显示面板连接的柔性电路板以及与所述柔性电路板连接的驱动芯片；还包括封闭件，设置在所述柔性电路板上与所述驱动芯片对应的位置，所述封闭件用于将所述驱动芯片与所述柔性电路板之间的连