CN211124793U

CN211124793U - Foldable supporting structure and display device

Info

Publication number: CN211124793U
Application number: CN201922023463.0U
Authority: CN
Inventors: 邹亚科; 李灏; 内山义治
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-28
Anticipated expiration: 2029-11-21

Abstract

The utility model provides a collapsible supporting structure and display device, this collapsible supporting structure include two at least plane supporting parts and connect the supporting part of buckling between two adjacent plane supporting parts. The bending supporting part comprises a bending framework and a bending protection sheet, the bending protection sheet is located on the outer side of the bending framework, the bending protection sheet and the bending framework are fixedly connected along a fixing shaft, two ends far away from the fixing shaft are free ends, the free ends can slide relative to the plane supporting part, and the fixing shaft is parallel to a bending shaft of the bending supporting part. Therefore, when the foldable supporting structure is folded and unfolded, the fixed shaft between the bending protection plate and the bending framework does not have internal stress, and the free end can slide relative to the plane supporting part, so that wrinkles can not appear, the bending framework can be protected, and the appearance smoothness and the attractiveness of the foldable display device can be improved.

Description

Foldable supporting structure and display device

Technical Field

The utility model relates to collapsible display device technical field especially involves a collapsible bearing structure and display device.

Background

Due to the advancement of technology and the development of wireless networks, people have increasingly demanded portability of various display devices, and the improvement of portability of display devices requires the display devices to be lightweight and compact. Therefore, foldable display devices, which generally include at least two planar areas and a folding area located between the adjacent two planar areas, have become an important trend in the development of modern terminal devices and display devices.

Referring to fig. 1, a schematic diagram of a foldable display device in a prior art is shown in a folded state, and a foldable support structure of the foldable display device includes a planar support portion 1 opposite to a planar area, and a bending support portion 2 connected between adjacent planar support portions 1. In one scheme, the bending support part 2 only comprises a bending framework 21, and the bending framework 21 is directly exposed when the foldable display device is folded, so that on one hand, the appearance smoothness and the attractiveness of the foldable display device are poor; on the other hand, the bent bobbin 21 is easily damaged due to lack of protection of the bent bobbin 21.

Referring to fig. 2 and 3, fig. 2 is a schematic view showing another folding state of a foldable display device in the prior art; fig. 3 shows a schematic view of an unfolded state of the foldable display device shown in fig. 2. In this scheme, the support portion 2 of buckling has the protection layer 22, and the plane support portion 1 has the shell body 11, and the both ends of above-mentioned protection layer 22 and the shell body 11 fixed connection of plane support portion 1 then when carrying out folding and expansion operation, because the support portion 2 of buckling has certain thickness, consequently, can make the protection layer 22 of the support portion 2 of buckling the fold appear during the expansion, specifically as shown in fig. 3, lead to foldable display device's outward appearance smoothness relatively poor, the aesthetic property is relatively poor, and drop easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a collapsible bearing structure and display device improves collapsible display device's outward appearance planarization and aesthetic property, improves collapsible bearing structure's reliability.

In a first aspect, the present invention provides a foldable support structure, which includes at least two plane support portions and a bending support portion connected between two adjacent plane support portions, wherein the foldable support structure bends at the bending support portion to realize the folding and unfolding of the display device. The bending supporting part comprises a bending framework and a bending protection sheet, the bending protection sheet is located on the outer side of the bending framework, the bending protection sheet and the bending framework are fixedly connected along a fixing shaft, two ends far away from the fixing shaft are free ends, the free ends can slide relative to the plane supporting part, and the fixing shaft is parallel to a bending shaft of the bending supporting part. Therefore, when the foldable supporting structure is folded and unfolded, the fixed shaft between the bending protection plate and the bending framework has no internal stress, and stable connection can be realized; in addition, the free end can slide relative to the plane supporting part, so that wrinkles can not occur, the bending framework can be protected, the appearance smoothness and the attractiveness of the foldable display device can be improved, and the reliability of the foldable supporting structure is improved.

When the fixing shaft is specifically arranged, the fixing shaft can be overlapped with the bending shaft of the bending supporting part, so that the fixing shaft is more stable, and the bending protection sheet can be formed into a symmetrical structure.

When specifically setting up above-mentioned protection piece of buckling, this protection piece of buckling can include along the district of sheltering from and the district of buckling that arranges in proper order from fixed axial free end, and the aforesaid intensity of sheltering from the district is greater than the intensity of the district of buckling to shelter from the district and can comparatively effectual protection skeleton of buckling, and the district of buckling is convenient for fold along with collapsible bearing structure.

In order to manufacture the shielding area and the bending area of the bending protection sheet, the thickness L2 of the bending area and the thickness L1 of the shielding area can meet the condition that L1 is more than L2, or the bending area protects the body layer and the texture layer, the thickness L1 of the shielding area and the thickness L2 of the bending area meet the condition that L1 is more than or equal to L2, so that the strength of the bending area is less than that of the shielding area.

When the bending area is provided with the body layer and the grain layer, the grain layer faces the bending framework, so that the body layer is positioned at the outer side, and the appearance of the foldable supporting structure is relatively flat.

When specifically setting up above-mentioned screening glass of buckling, can also make the screening glass of buckling have along the district that shelters from, transition district and the district of buckling that arranges in proper order from fixed axial free end, the aforesaid intensity of sheltering from district, transition district and the district of buckling reduces in proper order to shelter from the district and can comparatively effectual protection skeleton of buckling, the transition district makes the intensity of the screening glass of buckling can not appear obvious difference, and the district of buckling is convenient for fold along with collapsible bearing structure.

In order to manufacture the bending protection plate, the thickness L1 of the shielding area, the thickness L2 of the bending area and the thickness L03 of the transition area can meet the requirement that L11 is more than or equal to L3 and more than L2, or the thickness L1 of the shielding area, the thickness L2 of the bending area and the thickness L3 of the transition area can meet the requirement that L1 is more than or equal to L3 and more than L2, so that the strength of the shielding area, the transition area and the bending area can be gradually reduced.

When the transition area is provided with the body layer and the grain layer, the grain layer faces the bending framework, so that the body layer is positioned at the outer side, and the appearance of the foldable supporting structure is relatively smooth.

In particular, when the bending protection sheet is manufactured, the bending protection sheet may be formed as an integrally formed structure, and the integrally formed structure may be processed to form the bending protection sheet having a plurality of regions. Specifically, this buckle protection piece can be the buckle protection piece of metal material to utilize the mode of plane etching or texture etching to process the buckle protection piece, the manufacturing process is comparatively simple.

In specific setting the utility model discloses during collapsible supporting structure among the technical scheme, can make the plane supporting part have supporting framework and shell body, the free end of the screening glass of buckling is located the shell body towards one side of supporting framework to the free end of the screening glass of buckling can slide in the inside of shell body, thereby improves collapsible display device's outward appearance planarization.

When specifically setting up above-mentioned plane supporting part, can make the plane supporting part have the spout, the free end of buckling protection piece is assembled in above-mentioned spout in a sliding manner to above-mentioned spout can play the effect of direction to the slip of free end, and the improvement is buckled the free end of protection piece and is carrying out gliding reliability and stability along with folding bearing structure's folding and expansion.

In a second aspect, the present invention further provides a display device, which includes the foldable supporting structure in any of the above technical solutions, and a display screen, wherein the display screen is fixedly mounted on a side of the foldable supporting structure away from the bending protection sheet, in the solution, when the foldable supporting structure is folded and unfolded, the fixing shaft between the bending protection sheet and the bending framework has no internal stress, so that a more stable connection can be realized; in addition, the free end can slide relative to the plane supporting part, so that wrinkles can not occur, the bending framework can be protected, the appearance smoothness and the attractiveness of the foldable display device can be improved, and the reliability of the foldable supporting structure is improved.

Drawings

FIG. 1 is a schematic view of a foldable display device in a folded state according to the prior art;

FIG. 2 is a schematic view of another foldable display device in the prior art in a folded state;

FIG. 3 is a schematic view of the foldable display device shown in FIG. 2 in an unfolded state;

fig. 4 is a schematic view of the foldable support structure in an embodiment of the present invention in a folded state;

fig. 5 is a schematic view of an expanded state of the foldable support structure according to an embodiment of the present invention;

fig. 6 is a top view of an expanded state of the collapsible support structure in an embodiment of the invention;

fig. 7 is a schematic diagram of a foldable display device according to an embodiment of the present invention in a folded state;

fig. 8 is a schematic view of an unfolded state of the foldable display device according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a bending protection sheet according to an embodiment of the present invention;

fig. 10 is another schematic structural diagram of a bending protection sheet according to an embodiment of the present invention.

Reference numerals:

1-a planar support; 11-an outer shell;

12-a support skeleton; 2-bending the supporting part;

21-bending the framework; 22-a protective layer;

23-bending protection plates; 231-a blocking area;

232-bending zone; 233-transition zone;

24-a fixed shaft; 25-free end;

and 3, displaying the screen.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

For the convenience of understanding the foldable support structure of the display device provided by the embodiments of the present invention, the following first describes an application scenario thereof. The support structure of the foldable display device is applied to the foldable display device, such as a foldable mobile phone, a foldable tablet computer, a foldable electronic paper book and the like. According to the folding process of the display device, the foldable display device can be considered to include two structural regions, a planar region and a bending region. Specifically, the display device at least comprises two plane areas, a bending area can be arranged between any two adjacent plane areas, and the foldable display device is bent in the bending area, or a bending axis of the foldable display device is positioned in the bending area. Accordingly, the foldable support structure of the foldable display device includes a planar support portion opposite to the planar area, and a bending support portion opposite to the bending area. In the prior art, the bending support part usually only includes a bending framework, or the housing of the bending support part is fixedly connected with the housing of the planar support part, and the housing of the bending support part can be stretched or piled in the bending and unfolding processes, so that the appearance smoothness and the aesthetic property of the foldable display device are poor, and the reliability of the foldable support structure is poor. Therefore, it is desirable to design a foldable support structure of a display device to improve the smoothness and the aesthetic appearance of the foldable display device and to improve the reliability of the foldable support structure.

The terminology used in the following examples is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, such as "one or more", unless the context clearly indicates otherwise.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

Referring to fig. 4 and 5, fig. 4 shows a schematic view of a folded state of the foldable support structure in the embodiment of the present invention, and fig. 5 shows a schematic view of an unfolded state of the foldable support structure in the embodiment of the present invention. The embodiment of the utility model provides an in, but folding supporting structure includes two plane supporting parts 1 and connects the supporting part 2 of buckling between two plane supporting parts 1, but this folding supporting structure buckles at the supporting part 2 of buckling to realize its folding and expand the effect. Specifically, the bending support portion 2 includes a bending frame 21 and a bending protection sheet 23, wherein the bending protection sheet 23 is installed on the outer side of the bending frame 21, the outer side of the bending frame 21 refers to one side of the bending frame contacting with the outside after being folded, or the foldable display device further includes a display screen 3, the bending protection sheet 23 is installed on one side of the bending frame 21 deviating from the display screen 3, when the foldable display device is bent, the bending protection sheet is bent towards the direction of the display screen 3, and when the foldable display device is folded, the display screen 3 is located inside the foldable support structure. The bending protection sheet 23 can protect the bending framework 21, so that the bending framework 21 is not exposed, on one hand, the protection effect on the bending framework 21 is improved, and on the other hand, the smoothness and the attractiveness of the appearance of the foldable device can also be improved. Please refer to fig. 5 to 6, which illustrate a top view of an unfolding state of the foldable supporting structure in the embodiment of the present invention, the bending protection sheet 23 is fixed on the bending frame 21 along the fixing shaft 24, two ends of the bending protection sheet 23 away from the fixing shaft 24 are free ends 25, the free ends 25 can slide relative to the plane supporting portion 1, the fixing shaft 24 is parallel to the bending axis of the bending supporting portion 2, the bending axis refers to the bending supporting portion 2 folded and unfolded around the bending axis, so that the connection structure between the bending protection sheet 23 and the bending frame 21 is not affected during the folding and unfolding process of the foldable display device, and the bending protection sheet 23 and the bending frame 21 can be stably connected. The bending protection sheet 23 has free ends 25 at both ends thereof, and can slide with respect to the plane support 1 when the bending support 2 is bent and unfolded. Specifically, when the bending support 2 is folded, the free end 25 slides outwards relative to the plane support 1 to wrap the bending bracket, as shown in fig. 7; when the bending support portion 2 is unfolded, the free end 25 slides inward relative to the plane support portion 1 and is shielded by the outer housing 11 of the plane support portion 1, as shown in fig. 8, so that the situation that the bending protection sheet 23 of the bending support portion 2 is stacked does not occur, wrinkles of the bending protection sheet 23 when the foldable display device is unfolded are reduced, and the installation reliability of the bending protection sheet 23 is improved.

In a specific embodiment, the foldable display device may comprise a plurality of planar support portions 1, and any two adjacent planar support portions 1 have one of the above-mentioned bending support portions 2 therebetween.

In a specific embodiment, referring to fig. 6, the fixing shaft 24 between the bending protection sheet 23 and the bending frame 21 is overlapped with the bending shaft of the foldable display device, so that the bending protection sheet 23 has a symmetrical structure, and the position of the connection structure between the bending protection sheet 23 and the bending frame 21 is not changed along with the folding or unfolding of the foldable display device, thereby improving the connection reliability between the bending protection sheet 23 and the bending frame 21.

With continued reference to fig. 4 and 5, the planar support portion 1 includes a support frame 12 and an outer shell 11, and the free end 25 of the bending protection sheet 23 of the bending support portion 2 is located on one side of the outer shell 11 facing the support frame 12, so that the free end 25 of the bending protection sheet 23 is not exposed, and can move and bend inside the outer shell 11 of the planar support portion 1, thereby improving the appearance simplicity of the foldable support structure. When the foldable support structure is folded, part of the free end 25 is exposed from the outer shell 11, but the edge of the free end 25 is still positioned inside the outer shell 11, so that the bent framework 21 is protected, and the appearance is flat; when the foldable support structure is unfolded, the free end 25 extends into the outer shell 11, so that the bending protection sheet 23 is not wrinkled, and the free end 25 positioned in the outer shell 11 can be shielded by the outer shell 11, thereby improving the appearance smoothness of the foldable support structure.

Referring to fig. 4 and 5, in a specific technical solution, the planar support 1 has a sliding slot, and the free end 25 of the bending protection sheet 23 is slidably fitted in the sliding slot, and the sliding slot can provide a guiding function for the movement of the free end 25 of the bending protection sheet 23 relative to the planar support 1, so as to improve the reliability of the movement of the free end 25 along with the folding and unfolding actions of the bending support 2.

Referring to fig. 9, a schematic structural diagram of the bending protection sheet 23 in the embodiment of the present invention is shown, the bending protection sheet 23 includes a shielding region 231 and a bending region 232 sequentially arranged along the far away fixing shaft 24, wherein the shielding region 231 shields the bending framework 21 when the foldable display device is folded, and the bending region 232 is folded along with the folding of the foldable display device and unfolded. The intensity of the shielding region 231 is greater than that of the bending region 232, so that the shielding region 231 can better protect the bending framework 21, and the bending region 232 can better act along with the bending and folding of the foldable display device. Referring to fig. 9, in this embodiment, the bending protection sheet 23 includes a shielding region 231 and bending regions 232 located at two sides of the shielding region 231, the fixing shaft 24 of the bending protection sheet 23 is located in the shielding region 231, and the free end 25 is located in the bending regions 232.

For example, in an embodiment, the thickness L1 of the shielding region 231 and the thickness L2 of the bending region 232 may be made to satisfy L1 > L2, the greater the thickness and the greater the strength due to the same material, the bending region 232 and the shielding region 231 may be made to be an integrally formed structure, so that the thickness of the bending region 232 is reduced, thereby manufacturing the bending protection sheet 23 in the embodiment of the present invention, or in another embodiment, the bending region 232 may include a texture layer, specifically, a texture, such as a stripe or a cross-hatch, may be manufactured by removing a portion of the material from the bending region 232 of a single material, so that the strength of the bending region 232 is lower than that of the shielding region 231, specifically, the thickness L1 of the shielding region 231 and the thickness L2 of the bending region 232 may satisfy L1 ≥ L2, when the thicknesses are the same, the strength of the region having the texture layer is lower than that of the region not having the texture region, thereby realizing that the bending region 232 may include the texture layer, namely, and the bending region 232 may be installed on the outer side of the body region 23, thereby providing the texture layer 21.

Referring to fig. 10, a schematic structural diagram of another bending protection sheet 23 according to an embodiment of the present invention is shown. In another embodiment, the bending protection sheet 23 may include a shielding region 231, a transition region 233 and a bending region 232 sequentially arranged from the fixing shaft 24 to the free end 25, and the shielding region 231, the transition region 233 and the bending region 232 are gradually reduced in strength, so as to improve the shielding effect of the bending protection sheet 23 on the bending framework 21 and the bending effect during folding, and improve the reliability of the bending protection sheet 23.

For example, in one embodiment, the thickness L1 of the shielding region 231, the thickness L2 of the bending region 232, and the thickness L03 of the transition region 233 may be made to satisfy that L11 ≧ L3 > L2, the region with smaller thickness has smaller strength, and the bending protection sheet 23 may be made as a unitary structure, by controlling the thickness of each portion, the bending protection sheet 23 of the present invention may be made, in another embodiment, the transition region 233 includes a body layer and a textured layer, and the thickness L1 of the shielding region 231, the thickness L2 of the bending region 232, and the thickness L3 of the transition region 233 satisfy that L1 ≧ L3 > L2, when the thicknesses are the same, the strength of the region with the textured layer is less than the strength of the region without the textured layer, so that the transition region 233 includes the body layer and the textured layer, that is when the transition region is made, the textured layer is located on the outside of the bending protection sheet 233, and the surface of the body layer is flattened, that is the textured layer 23, and the surface of the bending protection sheet 23 is provided on the outside.

In the above embodiment, the bending protection sheet 23 has a plurality of regions, and the shielding region 231 with higher strength can be used to shield the bending framework 21 to protect the bending framework 21 if the strength of each region is different; the

weaker regions

232 and 233 can also be used to accommodate repeated folding and unfolding actions, since the weaker regions are more flexible.

The bending protection sheet 23 in the above embodiment may be an integrally formed structure, and the shielding region 231 and the bending region 232, or the shielding region 231, the transition region 233 and the bending region 232 may be directly formed during manufacturing. The entire structure may be first obtained, and the region with the reduced thickness and without the processing of the shielding region 231 may be subjected to a polishing or etching process to remove the material, and similarly, the region with the texture layer may be subjected to a polishing or etching process to remove the material to obtain the texture layer.

In a specific embodiment, the material of the bending protection sheet 23 is not limited, and for example, the bending protection sheet may be a metal material, and the metal material has a better protection effect on the bending frame 21, and is convenient to manufacture. For example, when the texture layer is formed, texture etching may be performed on a corresponding region, and when a thinner region is formed, planar etching may be performed. In other embodiments, the material of the bending protection sheet 23 may also be a non-metal material, such as plastic or rubber, which are not listed here.

Referring to fig. 7 and 8, an embodiment of the present invention further provides a display device, which is a foldable display device, and includes at least two plane supporting portions 1 and a bending supporting portion 2 connected to the adjacent plane supporting portion 1, the display device includes a foldable supporting structure in any of the above technical solutions, and a display screen, wherein the display screen is located on one side of the foldable supporting structure away from the bending protection sheet 23, and when the display device is folded, the display screen is located on the inner side of the foldable supporting structure. This display device's bending zone 232 outside has bending protection piece 23 to the outward appearance planarization is better, and expandes the back, and the shell still can keep leveling, is difficult for appearing the fold, and life is longer.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A collapsible support structure, comprising: at least two plane supporting parts and connect the support portion of buckling between two adjacent plane supporting parts, wherein:

the supporting part of buckling is including buckling the skeleton and being fixed in buckle the screening glass of buckling in the skeleton outside, buckle the skeleton with buckle the screening glass along fixed axle fixed connection, the screening glass of buckling is kept away from the both ends of fixed axle are the free end, the free end is relative the plane supporting part slides, the fixed axle with the axle of buckling of the supporting part is parallel.

2. The foldable support structure of claim 1, wherein the fixed shaft overlaps the bending axis of the bending support.

3. The foldable support structure of claim 1, wherein the bend protection panel comprises, in order from the fixed axis to the free end, a blocking region and a bending region, the blocking region having a strength greater than a strength of the bending region.

4. The foldable support structure of claim 3, wherein a thickness L1 of the blocking region and a thickness L2 of the bending region satisfy L1 > L2.

5. The foldable support structure of claim 3, wherein the bending region comprises a body layer and a texture layer, and the thickness L1 of the shielding region and the thickness L2 of the bending region satisfy L1 ≧ L2.

6. The foldable support structure of claim 5, wherein the corrugated layer is located on a side of the body layer facing the buckling framework.

7. The foldable support structure of claim 1, wherein the bend protection panel comprises a blocking region, a transition region, and a bending region in order from the fixed axis to the free end, the blocking region, the transition region, and the bending region gradually decreasing in strength.

8. The foldable support structure of claim 7, wherein a thickness L1 of the sheltered zone, a thickness L2 of the bending zone, and a thickness L3 of the transition zone satisfy L1 ≧ L3 > L2.

9. The foldable support structure of claim 7, wherein the transition region comprises a body layer and a texture layer, and the thickness L1 of the shelter region, the thickness L2 of the bending region and the thickness L3 of the transition region satisfy L1 > L3 > L2.

10. The foldable support structure of claim 9, wherein the corrugated layer is located on a side of the body layer facing the buckling framework.

11. The foldable support structure of any one of claims 3 to 10, wherein the bend protection panel is an integrally formed structure.

12. The foldable support structure of claim 1, wherein the bend protection sheet is made of metal.

13. The foldable support structure of claim 1, wherein the planar support portion has a support frame and an outer shell, the free end being located on a side of the outer shell facing the support frame.

14. The foldable support structure of claim 13, wherein the planar support portion has a slide slot into which a free end of the bend protection sheet is slidably fitted.

15. A display device comprising a display screen and a foldable support structure according to any one of claims 1 to 14, wherein the display screen is secured to a side of the foldable support structure remote from the bend-protection sheet.