Flexible display module and display device

1. A flexible display device, comprising:

a flexible substrate;

a display layer, disposed on the flexible substrate;

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

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

a polarizing layer, disposed between the display layer and the reinforcement layer;

wherein material of the reinforcement layer comprises glass and a thickness of the reinforcement layer ranges from 10 μm to 150 μm.

2. The flexible display device according to claim 1 , further comprising:

a touch layer, disposed between the polarizing layer and the reinforcement layer, or between the polarizing layer and the display layer.

3. The flexible display device according to claim 1 , wherein modulus of the reinforcement layer is greater than or equal to that of any of the layers in the flexible display device.

4. The flexible display device according to claim 1 , wherein the modulus of the reinforcement layer ranges from 10 Gpa to 200 Gpa.

5. The flexible display device according to claim 1 , wherein transmittance of the reinforcement layer is greater than 90%.

6. The flexible display device according to claim 1 , wherein the reinforcement layer is a single-layer structure formed of the glass.

7. The flexible display device according to claim 6 , wherein a thickness of the glass ranges from 10 μm to 50 μm.

8. The flexible display device according to claim 7 , wherein the thickness of the glass ranges from 10 μm to 35 μm.

9. The flexible display device according to claim 1 , wherein the reinforcement layer is a laminated layer of the glass and an organic material layer, and the organic material layer is disposed above or below the glass, or both above and below the glass.

10. The flexible display device according to claim 9 , wherein the organic material layer is polyethylene terephthalate, or polyimide.

11. The flexible display device according to claim 1 , wherein an upper surface or a lower surface of the reinforcement layer is provided with an adhesive layer.

12. The flexible display device according to claim 11 , wherein the adhesive layer is optical clear adhesive.

13. The flexible display device according to claim 1 , wherein the protective layer comprises at least a hard coating layer, and the hard coating layer is formed of material containing a silicon compound.

14. The flexible display device according to claim 13 , wherein the protective layer further comprises a plastic substrate, and the hard coating layer is formed on a surface of the plastic substrate.

15. The flexible display device according to claim 14 , wherein the plastic substrate comprises one or more selected from polyimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyallylate, and polycarbonate.

16. The flexible display device according to claim 1 , wherein the flexible display device is a foldable flexible display device, a rollable flexible display device, or a slidable flexible display device.

17. The flexible display device according to claim 1 , wherein the polarizing layer is a circular polarizing layer.

18. The flexible display device according to claim 1 , further comprising:

a touch layer, wherein the touch layer is a separate layer additionally attached above the display layer, or the touch layer is directly integrated in the display layer by semiconductor process.

19. The flexible display device according to claim 1 , further comprising:

a supporting layer, disposed below the flexible substrate, for supporting and protecting, wherein the supporting layer comprises one or more selected from a metal supporting layer, a carbon fiber composite supporting layer, and a glass fiber reinforced material supporting layer.