Flexible substrate, preparation method thereof and display device

The invention relates to a flexible substrate, a preparation method thereof and a display device. The flexible substrate comprises a first substrate layer and a first barrier layer. The first barrierlayer is arranged on the surface of the first substrate layer. The film formation region of the first barrier layer is smaller than the film formation region of the first substrate layer. When the flexible substrate is formed, as the film formation region of the first barrier layer is smaller than the film formation region of the first substrate layer, only the first substrate layer is in contactwith a rigid base, various complex structures different from the layout design are prevented from appearing on part of the edge of the flexible substrate, and the problem that the flexible substrate is damaged when the flexible substrate is stripped from the rigid base is also solved. 本申请涉及一种柔性基板及其制备方法、显示装置。所述柔性基板包括第一衬底层和第一阻挡层。所述第一阻挡层设置于所述第一衬底层的表面。所述第一阻挡层的成膜区域小于所述第一衬底层的成膜区域。在形成柔性基板时，由于所述第一阻挡层的成膜区域小于所述第一衬底层的成膜区域，使得仅有所述第一衬底层