Display assembly and display device

Patent metadata

Field	Value
Publication number	US-12259756-B2
Application number	US-202117921604-A
Country	US
Kind code	B2
Filing date	Jul 5, 2021
Priority date	Aug 27, 2020
Publication date	Mar 25, 2025
Grant date	Mar 25, 2025

Abstract

A display assembly includes: a bearing assembly ( 1 ) configured to bear a flexible display module ( 3 ) and drive the flexible display module ( 3 ) to bend or fold; at least two supporting layers ( 2 ) stacked in sequence on the bearing assembly ( 1 ), each supporting layer ( 2 ) being bendable and having resilience, and each supporting layer ( 2 ) being provided with a hollowed-out pattern. The hollowed-out patterns of the supporting layers ( 2 ) are different in at least one of the following properties: the area of a hollowed-out part, the shape of the hollowed-out part, and the position of the hollowed-out part. The display assembly further includes the flexible display module ( 3 ) located on the side of the at least two supporting layers ( 2 ) facing away from the bearing assembly ( 1 ).

First claim

What is claimed is:

1. A display assembly, comprising:
a bearing assembly configured to bear a flexible display module and drive the flexible display module to bend or fold;
at least two supporting layers stacked in sequence on the bearing assembly, wherein each supporting layer is bendable and has resilience, and each supporting layer is provided with a hollowed-out pattern; and hollowed-out patterns of the supporting layers are different in at least one of following properties: an area of a hollowed-out part, a shape of the hollowed-out part, and a position of the hollowed-out part; and
the flexible display module located on a side of the at least two supporting layers away from the bearing assembly;
wherein the hollowed-out pattern of each supporting layer comprises at least one hollowed-out region;
the hollowed-out region comprises a plurality of hollowed-out parts distributed in an array.

2. The display assembly of claim 1 , wherein areas of hollowed-out parts in the supporting layers are different.

3. The display assembly of claim 2 , wherein the areas of the hollowed-out parts in the supporting layers increase sequentially in a direction from an inner side to an outer side of bending or folding of the flexible display module.

4. The display assembly of claim 3 , wherein hollowed-out parts in one supporting layer correspond to hollowed-out parts in another supporting layer in an one-to-one correspondence, and orthographic projections of hollowed-out parts corresponding to each other on the flexible display module at least partially overlap.

5. The display assembly of claim 4 , wherein centers of the orthographic projections of the hollowed-out parts corresponding to each other on the flexible display module coincide.

6. The display assembly of claim 4 , wherein an orthographic projection of a hollowed-out part of a supporting layer close to the inner side of bending or folding on the flexible display module is located in an orthographic projection of a hollowed-out part of a supporting layer close to the outer side of bending or folding on the flexible display module.

7. The display assembly of claim 1 , wherein orthographic projections of hollowed-out parts in the supporting layers on the flexible display module are staggered.

8. The display assembly of claim 7 , wherein shapes and areas of the hollowed-out parts in the supporting layers are same.

9. The display assembly of claim 1 , wherein shapes of hollowed-out parts in the supporting layers are same; and the shapes of the hollowed-out parts are a strip shape;
wherein an extending direction of the strip shape is consistent with an axis direction of bending or folding of the flexible display module.

10. The display assembly of claim 1 , wherein shapes of hollowed-out parts in the supporting layers are different; and the shapes of the hollowed-out parts comprise at least one of strip shape, rectangle, rhombus, or oval.

11. The display assembly of claim 1 , further comprising:
a foam adhesive layer located between the at least two supporting layers and the flexible display module, wherein one supporting layer close to the flexible display module is fitted to the flexible display module through the foam adhesive layer;
wherein one supporting layer close to the bearing assembly is fitted to the bearing assembly through glue.

12. The display assembly of claim 11 , wherein adjacent supporting layers are fitted through glue, or the at least two supporting layers are an integrally-formed structure.

13. The display assembly of claim 1 , wherein the bearing assembly comprises:
a first middle frame,
a second middle frame, and
a rotating shaft assembly located between the first middle frame and the second middle frame,
wherein the first middle frame and the second middle frame are rotatable respectively around the rotating shaft assembly to realize folding or unfolding.

14. The display assembly of claim 13 , wherein a thickness of each supporting layer is 0.01 mm-0.15 mm.

15. The display assembly of claim 1 , wherein each supporting layer is a stainless steel material layer.

16. A display device, comprising the display assembly of claim 1 .

17. The display assembly of claim 7 , wherein shapes of hollowed-out parts in the supporting layers are same; and the shapes of the hollowed-out parts are a strip shape;
wherein an extending direction of the strip shape is consistent with an axis direction of bending or folding of the flexible display module.

18. The display assembly of claim 7 , wherein shapes of hollowed-out parts in the supporting layers are different; and the shapes of the hollowed-out parts comprise at least one of strip shape, rectangle, rhombus, or oval.

19. The display assembly of claim 1 , wherein the at least two supporting layers are two supporting layers.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Zhou Pengfei
• Chu Shangchieh
• Sun Baofeng
• Yang Yanyan
• Wang Bo
• Wang Yanli
• Liu Wei

Classifications

• G06F1/1656

  Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203) · CPC title

• G06F1/1616

  with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position · CPC title

• G06F1/1681

  Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683) · CPC title

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• G06F1/1641 Primary

  the display being formed by a plurality of foldable display components (G06F1/1647 takes precedence) · CPC title