Flexible display device and manufacturing method thereof

A flexible display device, comprising:

• a display area, a bending area, and a driving printed circuit board, wherein the bending area is located between the display area and the driving printed circuit board, and the driving printed circuit board is located on a rear side of the display area by bending of the bending area, and the bending area comprises:
• a substrate;
• an inorganic layer disposed on substrate, wherein the inorganic layer is disposed on the substrate and distributed in a form of islands, and the inorganic layer comprises a plurality of island-shaped blocks, and two adjacent island-shaped blocks are spaced apart from each other;
• a first metal layer disposed on a whole surface of the inorganic layer and the substrate, wherein the first metal layer forms a plurality of first recesses corresponding to shapes of the plurality of island-shaped blocks;
• an organic disposed on the first metal layer, and the organic layer fills the plurality of first recesses;
• and
• a patterning dielectric layer disposed on the first metal layer and the organic layer, and the patterning dielectric layer is formed at a position corresponding to the plurality of island-shaped blocks of the inorganic layer.

A manufacturing method of a flexible display device, wherein a display area, a bending area, and a driving printed circuit board are defined within the flexible display device, the bending area is located between the display area and the driving printed circuit board, and the driving printed circuit board is located on a rear side of the display area by bending of the bending area, and the manufacturing method comprises:

• providing a substrate;
• disposing an inorganic layer on the substrate;
• patterning the inorganic layer, wherein in the bending area the inorganic layer is disposed on the substrate and distributed in a form of islands, and the inorganic layer comprises a plurality of island-shaped blocks, and two adjacent island-shaped blocks are spaced apart from each other;
• disposing a second metal layer on the inorganic layer;
• patterning the second metal layer, such that the second metal layer comprises a plurality of patterning units, and the plurality of patterning units are spaced apart from each other, and one of the patterning units is located between two adjacent island-shaped blocks;
• and
• disposing a first metal layer on the inorganic layer and the second metal layer, wherein in the bending area the first metal layer forms a plurality of first recesses corresponding to shapes of the plurality of island-shaped blocks.