Flexible display panel and display device

Patent metadata

Field	Value
Publication number	US-10181568-B2
Application number	US-201715618126-A
Country	US
Kind code	B2
Filing date	Jun 9, 2017
Priority date	Feb 15, 2017
Publication date	Jan 15, 2019
Grant date	Jan 15, 2019

Abstract

A flexible display panel and a display device are provided. The flexible display panel includes: a first flexible substrate, a second flexible substrate, and an inorganic layer located between the first flexible substrate and the second flexible substrate; where there are a plurality of grooves and/or through-holes in the inorganic layer; and the first flexible substrate contacts the second flexible substrate through the grooves and/or the through-holes. In this way, the grooves and/or the through-holes are arranged in the inorganic layer so that the first flexible substrate can contact with the second flexible substrate through the grooves and/or the through-holes to thereby increase the contact area between the second flexible substrate and the inorganic layer so as to alleviate the risk of the organic layer being stripped off the inorganic layer in the flexible display panel being bent and deformed.

First claim

The invention claimed is:

1. A flexible display panel, comprising: a first flexible substrate, a second flexible substrate, and an inorganic layer located between the first flexible substrate and the second flexible substrate; wherein:
there are a plurality of grooves and/or through-holes in the inorganic layer; and
the first flexible substrate contacts the second flexible substrate through the grooves and/or the through-holes.

2. The flexible display panel according to claim 1 , wherein the grooves and/or the through-holes are located in a peripheral area and/or a central area of the inorganic layer; and the central area corresponds to a display area of the flexible display panel, and the peripheral area surrounds the central area.

3. The flexible display panel according to claim 2 , wherein the through-holes located in the peripheral area are distributed uniformly to surround the central area.

4. The flexible display panel according to claim 2 , wherein the grooves located in the peripheral area are connected consecutively with each other to form such an edge frame of the grooves that surrounds the central area.

5. The flexible display panel according to claim 2 , further comprising a plurality of metal wires located in the display area, wherein:
vertical projections, onto the first flexible substrate, of the grooves and the through-holes located in the central area lie in an area of positive projections of the metal wires in the corresponding area onto the first flexible substrate.

6. The flexible display panel according to claim 1 , further comprising a buffer layer located on the second flexible substrate, and a package section located above the buffer layer, wherein:
there are through-holes in an area that corresponds to the package section, the area being above the inorganic layer and the package section is connected with the second flexible substrate through the through-holes.

7. The flexible display panel according to claim 6 , wherein there are through-holes in the area of the inorganic layer corresponding to the package section, and the second flexible substrate is connected with the first flexible substrate through the through-holes.

8. The flexible display panel according to claim 1 , wherein a material of which the first flexible substrate and the second flexible substrate is made is polyimide.

9. The flexible display panel according to claim 1 , wherein a material of which the inorganic layer is made is metal or metal oxide.

10. A display device, comprising a flexible display panel, wherein the flexible display panel comprises: a first flexible substrate, a second flexible substrate, and an inorganic layer located between the first flexible substrate and the second flexible substrate; wherein:
there are a plurality of grooves and/or through-holes in the inorganic layer; and
the first flexible substrate contacts the second flexible substrate through the grooves and/or the through-holes.

11. The display device according to claim 10 , wherein the grooves and/or the through-holes are located in a peripheral area and/or a central area of the inorganic layer; and the central area corresponds to a display area of the flexible display panel, and the peripheral area surrounds the central area.

12. The display device according to claim 11 , wherein the through-holes located in the peripheral area are distributed uniformly to surround the central area.

13. The display device according to claim 11 , wherein the grooves located in the peripheral area are connected consecutively with each other to form such an edge frame of the grooves that surrounds the central area.

14. The display device according to claim 11 , wherein the flexible display panel further comprises a plurality of metal wires located in the display area, wherein:
positive projections, onto the first flexible substrate, of the grooves and the through-holes located in the central area lie in an area of positive projections of the metal wires in the corresponding area onto the first flexible substrate.

15. The display device according to claim 10 , wherein the flexible display panel further comprises a buffer layer located on the second flexible substrate, and a package section located above the buffer layer, wherein:
there are through-holes in an area that corresponds to the package section, the area being above the inorganic layer, and the package section is connected with the second flexible substrate through the through-holes.

16. The display device according to claim 15 , wherein there are through-holes in the area of the inorganic layer corresponding to the package section, and the second flexible substrate is connected with the first flexible substrate through the through-holes.

17. The display device according to claim 10 , wherein a material of which the first flexible substrate and the second flexible substrate is made is polyimide.

18. The display device according to claim 10 , wherein a material of which the inorganic layer is made is metal or metal oxide.

Assignees

• Xiamen Tianma Micro Electronics Co Ltd

Inventors

• Lin Hong
• He Shui
• Yuan Yong

Classifications

• B32B2307/546

  Flexural strength; Flexion stiffness · CPC title

• B32B3/30

  characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)} · CPC title

• B32B2255/20

  Inorganic coating · CPC title

• B32B3/266

  characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12 · CPC title

• B32B3/08

  characterised by added members at particular parts {(layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18)} · CPC title