Manufacturing method of flexible substrate

A manufacturing method of a flexible substrate, comprising:

• coating a flexible substrate material comprising a photo-sensitive material onto a surface of a glass substrate;
• vacuum-drying the flexible substrate material;
• using a mask to expose the dried flexible substrate material, wherein the mask has a plurality of opaque regions which are distanced from each other, and the opaque regions form a designed pattern;
• developing the exposed flexible substrate material, so as to remove a portion of the flexible substrate material except the opaque regions;
• and
• curing the developed flexible substrate material, so as to form a plurality of films comprising the flexible substrate material, and the films correspond to the designed pattern;
• wherein a distance between each two of the adjacent opaque regions is from 0.5-50 millimeters;
• the flexible substrate material is Polyimide;
• the developed Polyimide is cured to form the plurality of films of Polyimide corresponding to the designed pattern;
• and a thickness of the films of Polyimide is in a range of 10-500 micrometers.