Flexible display module, method for manufacturing flexible display module, and display device

A flexible display module, comprising:

• a flexible display panel, a polarizer, a bending protection layer and an adhesive layer,
• wherein the flexible display panel comprises a first non-bending portion, a second non-bending portion and a bending portion located between the first non-bending portion and the second non-bending portion;
• the first non-bending portion comprises a display area and a non-display area surrounding the display area;
• the polarizer is located on a light-emitting side of the first non-bending portion, and covers the display area and part of the non-display area;
• the bending protection layer and the polarizer are located on a same side of the flexible display panel, the bending protection layer covers the bending portion and is in contact with an edge of the polarizer;
• the adhesive layer is located on one side of the polarizer away from the flexible display panel, and covers the polarizer and at least part of the bending protection layer;
• in the bending protection layer, an area in contact with the polarizer is a first area;
• in the first area, a surface of the bending protection layer away from the flexible display panel is a plane or a cambered surface.

A method for manufacturing a flexible display module, which is used to manufacture the flexible display module comprising:

• a flexible display panel, a polarizer, a bending protection layer and an adhesive layer,
• wherein the flexible display panel comprises a first non-bending portion, a second non-bending portion and a bending portion located between the first non-bending portion and the second non-bending portion;
• the first non-bending portion comprises a display area and a non-display area surrounding the display area;
• the polarizer is located on a light-emitting side of the first non-bending portion, and covers the display area and part of the non-display area;
• the bending protection layer and the polarizer are located on a same side of the flexible display panel, the bending protection layer covers the bending portion and is in contact with an edge of the polarizer;
• the adhesive layer is located on one side of the polarizer away from the flexible display panel, and covers the polarizer and at least part of the bending protection layer;
• in the bending protection layer, an area in contact with the polarizer is a first area;
• in the first area, a difference between a maximum thickness of the bending protection layer and a thickness of the polarizer is d, where 0≤d≤m, and a value of m is proportional to a thickness of the adhesive layer;
• wherein the method comprising:
• providing the flexible display panel that comprises the first non-bending portion, the second non-bending portion and the bending portion located between the first non-bending portion and the second non-bending portion, wherein the first non-bending portion comprises the display area and the non-display area surrounding the display area;
• attaching the polarizer to the light-emitting side of the first non-bending portion of the flexible display panel, wherein the polarizer covers the display area and part of the non-display area;
• manufacturing the bending protection layer on the bending portion of the flexible display panel, wherein the bending protection layer and the polarizer are located on the same side of the flexible display panel and are in contact with the edge of the polarizer;
• cutting the bending protection layer in the first area so that in the first area, the difference between the maximum thickness of the bending protection layer and the thickness of the polarizer is d, where 0≤d≤m, and the value of m is proportional to the thickness of the adhesive layer, the first area is the area in the bending protection layer that is in contact with the polarizer;
• and
• manufacturing the adhesive layer on one side of the polarizer away from the flexible display panel, wherein the adhesive layer covers the polarizer and at least part of the bending protection layer.