Flexible display panel, manufacturing method thereof and display device

1. A flexible display panel, comprising:

a flexible substrate comprising a plurality of cylindrical surface stretching bodies in an array, wherein pairs of adjacent cylindrical surface stretching bodies of the plurality of cylindrical surface stretching bodies are connected to each other by side edges thereof; and

a flexible device on the flexible substrate,

wherein the flexible device is conformal with the flexible substrate,

wherein the flexible device comprises a plurality of display units,

wherein each display unit of the plurality of display units comprises at least one pixel,

wherein the plurality of display units are in one-to-one correspondence with the plurality of cylindrical surface stretching bodies,

wherein the plurality of display units are on and conformal with corresponding ones of the plurality of cylindrical surface stretching bodies, and

wherein adjacent display units of the plurality of display units are electrically connected with each other,

wherein each display unit of the plurality of display units comprises 2 to 12 pixels, and

wherein each of the at least one pixel comprises at least two sub-pixels.

2. The flexible display panel according to claim 1 , wherein a respective surface of each of the plurality of cylindrical surface stretching bodies in contact with the flexible device is convex.

3. The flexible display panel according to claim 1 , wherein a respective surface of each of the plurality of cylindrical surface stretching bodies in contact with the flexible device is concave.

4. The flexible display panel according to claim 1 , wherein each display unit of the display units comprises:

a buffer layer; and

an active layer pattern, a gate insulating layer, a gate pattern, an insulating layer, a source-drain pattern, a planarization layer, a pixel layer, a pixel defining layer and a support layer stacked on the buffer layer sequentially.

5. A display device, comprising the flexible display panel according to claim 1 .

6. A method for manufacturing a flexible display panel, comprising:

forming a support comprising a plurality of cylindrical surface supporting units in an array;

forming a flexible substrate on the support, wherein the flexible substrate is conformal with the support and comprises a plurality of cylindrical surface stretching bodies in an array, wherein pairs of adjacent ones of the plurality of cylindrical surface stretching bodies are connected to each other by side edges thereof, and wherein the plurality of cylindrical surface stretching bodies are in one-to-one correspondence with the plurality of cylindrical surface supporting units;

forming a flexible device on the support and the flexible substrate, wherein the flexible device is conformal with the flexible substrate; and

separating the support from the flexible substrate to obtain the flexible display panel.

7. The method according to claim 6 , wherein the forming the support comprises:

providing a base substrate; and

forming a removable layer on the base substrate to serve as the support,

wherein the separating the support from the flexible substrate comprises:

removing the removable layer on the base substrate; and

separating the base substrate without the removable layer from the flexible substrate.

8. The method according to claim 6 , wherein the flexible device comprises a plurality of display units, wherein each display unit of the plurality of display units comprises at least one pixel, and wherein the forming the flexible device on the support with the flexible substrate comprises:

forming the plurality of display units on the support with the flexible substrate, wherein the plurality of display units are in one-to-one correspondence with the plurality of cylindrical surface stretching bodies, wherein the plurality of display units are on and conformal with corresponding ones of the plurality of cylindrical surface stretching bodies, and wherein adjacent display units of the plurality of display units are electrically connected with each other.

9. The method according to claim 7 ,

wherein the removable layer comprises a silicon dioxide material, and

wherein the removing the removable layer on the base substrate comprises spraying a silicon dioxide dissolving agent on the removable layer to remove the removable layer on the base substrate.

10. The method according to claim 7 , wherein the removable layer comprises a UV degradable material.

11. The method according to claim 8 , wherein the forming the plurality of display units on the support with the flexible substrate comprises:

forming a buffer layer; and

forming an active layer pattern, a gate insulating layer, a gate pattern, an insulating layer, a source-drain pattern, a planarization layer, a pixel layer, a pixel defining layer and a support layer sequentially on the buffer layer.

12. The method according to claim 11 , wherein one or more of the buffer layer, the active layer pattern, the gate insulating layer, the gate pattern, the insulating layer, the source-drain pattern, the planarization layer, the pixel layer, the pixel defining layer and the support layer comprise an inorganic material.

13. The method according to claim 7 , wherein the base substrate comprises a glass substrate.

14. The display device according to claim 5 , wherein a respective surface of each of the plurality of cylindrical surface stretching bodies in contact with the flexible device is convex.

15. The display device according to claim 5 , wherein a respective surface of each of the plurality of cylindrical surface stretching bodies in contact with the flexible device is concave.

16. The display device according to claim 5 , wherein each display unit of the display units comprises:

a buffer layer; and

an active layer pattern, a gate insulating layer, a gate pattern, an insulating layer, a source-drain pattern, a planarization layer, a pixel layer, a pixel defining layer and a support layer stacked on the buffer layer sequentially.