Flexible display module and display device

1. A flexible display panel, comprising:

a flexible substrate;

a display layer on the flexible substrate;

a reinforcement layer on a side of the display layer distal to the flexible substrate; and

a protective layer on a side of the reinforcement layer distal to the flexible substrate;

wherein the reinforcement layer is a multi-layer laminate structure comprising at least one colorless polyimide layer and the reinforcement layer is configured to enhance the reliability testing of the flexible display panel, and

the reinforcement layer comprises a first optical clear adhesive layer, a first colorless polyimide layer on a side of the first optical clear adhesive layer distal to the flexible substrate, a second optical clear adhesive layer on a side of the first colorless polyimide layer distal to the flexible substrate, and a second colorless polyimide layer on a side of the second optical clear adhesive layer distal to the flexible substrate.

2. The flexible display panel according to claim 1 , wherein the reinforcement layer further comprises a hard coating layer on a side of the second colorless polyimide layer distal to the flexible substrate.

3. The flexible display module according to claim 1 , wherein modulus of the first colorless polyimide layer ranges from 3 Gpa to 10 Gpa.

4. The flexible display panel according to claim 1 , wherein a thickness of the first colorless polyimide layer ranges from 35 μm to 100 μm.

5. A flexible display panel, comprising:

a flexible substrate;

a display layer on the flexible substrate;

a reinforcement layer on a side of the display layer distal to the flexible substrate; and

a protective layer on a side of the reinforcement layer distal to the flexible substrate;

wherein the reinforcement layer is a multi-layer laminate structure comprising at least one colorless polyimide layer and the reinforcement layer is configured to enhance the reliability testing of the flexible display panel, and,

wherein the reinforcement layer comprises a first optical clear adhesive layer, a colorless polyimide layer on a side of the first optical clear adhesive layer distal to the flexible substrate, a second optical clear adhesive layer on a side of the colorless polyimide layer distal to the flexible substrate, and an ultra-thin glass layer on a side of the second optical clear adhesive layer distal to the flexible substrate, wherein a thickness of the ultra-thin glass layer ranges from 50 μm to 100 μm.

6. The flexible display module according to claim 5 , wherein modulus of the colorless polyimide layer ranges from 3 Gpa to 10 Gpa.

7. The flexible display panel according to claim 5 , wherein a thickness of the colorless polyimide layer ranges from 35 μm to 100 μm.

8. A flexible display device, comprising:

a flexible substrate;

a display layer on the flexible substrate;

a touch layer on a side of the display layer distal to the substrate;

a polarizing layer on a side of the touch layer distal to the flexible substrate;

a reinforcement layer on a side of the polarizing layer distal to the flexible substrate; and

a protective layer on a side of the reinforcement layer distal to the flexible substrate;

wherein the reinforcement layer is a multi-layer laminate structure comprising at least one colorless polyimide layer and the reinforcement layer is configured to enhance the reliability testing of the flexible display device.

9. The flexible display device according to claim 8 , wherein the reinforcement layer comprises a first optical clear adhesive layer, a first colorless polyimide layer on a side of the first optical clear adhesive layer distal to the flexible substrate, a second optical clear adhesive layer on a side of the first colorless polyimide layer distal to the flexible substrate, and a second colorless polyimide layer on a side of the second optical clear adhesive layer distal to the flexible substrate.

10. The flexible display device according to claim 9 , wherein the reinforcement layer further comprises a hard coating layer on a side of the second colorless polyimide layer distal to the flexible substrate.

11. The flexible display device according to claim 8 , wherein the reinforcement layer comprises a first optical clear adhesive layer, a colorless polyimide layer on a side of the first optical clear adhesive layer distal to the flexible substrate, a second optical clear adhesive layer on a side of the colorless polyimide layer distal to the flexible substrate, and an ultra-thin glass layer on a side of the second optical clear adhesive layer distal to the flexible substrate.

12. The flexible display device according to claim 8 , wherein the reinforcement layer comprises a first optical clear adhesive layer, an ultra-thin glass layer on a side of the first optical clear adhesive layer distal to the flexible substrate, a second optical clear adhesive layer on a side of the ultra-thin glass layer distal to the flexible substrate, and a colorless polyimide layer on a side of the second optical clear adhesive layer distal to the flexible substrate.

13. The flexible display device according to claim 8 , further comprising a bottom film layer on a side of the display layer proximal to the substrate.

14. The flexible display device according to claim 13 , wherein the bottom film layer comprises a pressure sensitive adhesive layer on a side of the display layer proximal to the substrate and a polyimide layer on a side of the pressure sensitive adhesive layer proximal to the substrate.

15. The flexible display device according to claim 13 , further comprising an optical clear adhesive layer on a side of the bottom film layer proximal to the substrate.