CN212156402U

CN212156402U - Screen under-support structure and display device

Info

Publication number: CN212156402U
Application number: CN202020868786.XU
Authority: CN
Inventors: 罗晓飞
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-12-15
Anticipated expiration: 2030-05-21

Abstract

The utility model relates to a show technical field, disclose a screen under bracing structure and display device, be configured to support smooth display screen of book among the display device, include: slip center, pivot and support chain, wherein: the rotating shaft is arranged on one side of the sliding middle frame, which faces the display screen rolling and sliding part, and is in transmission connection with the display screen through a supporting chain; the supporting chain comprises a plurality of sections of supporting bars, and the extending direction of the supporting bars is parallel to the axis of the rotating shaft; the section of the supporting bar perpendicular to the axis of the rotating shaft is trapezoidal, and the size of one side departing from the rotating shaft is larger than the size of one side close to the rotating shaft. The support chain is arranged under the rolling and sliding part of the display screen, and the local warping of the screen is avoided on the basis of strengthening the lower support of the screen through the cooperation of the support chain and the rotating shaft arranged on the sliding middle frame, so that the display screen is ensured to be uniformly unfolded, and the stability of the screen is improved.

Description

Screen under-support structure and display device

Technical Field

The utility model relates to a show technical field, in particular to under screen supporting structure and display device.

Background

With the progress of science and technology and the development of society, the flexible display panel gradually enters the visual field of consumers, and the bendable and rollable curved panel brings brand-new user experience to the consumers while bringing convenience to the life of the consumers. When the flexible screen is flattened by sliding of the existing display device, due to the characteristics of the film material, the screen at the rotating shaft is easy to warp up and down, and stress concentration is generated at the warping position of the screen during sliding.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a screen under bracing structure and display device for strengthen the screen under bracing, avoid the local warpage of screen, promote the stability of screen simultaneously.

In order to achieve the above purpose, the utility model provides the following technical scheme:

an under-screen support structure configured to support a rollable display screen in a display device, comprising: slip center, pivot and support chain, wherein:

the rotating shaft is arranged on one side, facing the display screen rolling and sliding part, of the sliding middle frame and is in transmission connection with the display screen through the supporting chain;

the supporting chain comprises a plurality of sections of supporting bars, and the extending direction of the supporting bars is parallel to the axis of the rotating shaft; the support bar is perpendicular the cross-section of pivot axis is trapezoidal, and deviates from the size of pivot one side is greater than and is close to the size of pivot one side.

The screen lower supporting structure supports the display screen which can be rolled and slid in the rolling and sliding display device, and the display screen can be a flexible screen or a multi-section spliced screen and the like, and is not limited specifically. Specifically, above-mentioned under-screen supporting structure is including the slip center, pivot and support chain, the pivot is installed in slip center and is rolled up smooth part one side towards the display screen, the pivot deviates from slip center one side and is connected with the display screen transmission through supporting the chain, wherein support chain includes the support bar that the multisection set up side by side, the extending direction of support bar is parallel with the axis of pivot, the cross-section of the perpendicular pivot axis of support bar is trapezoidal, and the size that deviates from pivot one side is greater than the size that is close to pivot one side, be convenient for support the chain and deviate from display screen one side and tightly wind in the pivot. In the unfolding process of the rolled and sliding display screen, the sliding middle frame horizontally moves leftwards, the supporting chain is unfolded rightwards along with the display screen, the rotating shaft rotates clockwise under the action of the supporting chain, and the horizontal movement distance of the sliding middle frame is equal to the rotating arc length of the rotating shaft. The rolling and sliding part of the display screen is supported by a supporting chain and a rotating shaft arranged on the sliding middle frame, and after the rolling and sliding part is unfolded, the sliding middle frame and the supporting chain support the unfolded rolling and sliding part of the display screen.

Therefore, the supporting chain is arranged under the rolling and sliding part of the display screen, and through the matching of the supporting chain and the rotating shaft, the local warping of the screen is avoided on the basis of strengthening the lower supporting of the screen, the display screen is ensured to be evenly unfolded, and meanwhile, the stability of the screen is improved.

Optionally, one side of the support chain, which is far away from the rotating shaft, is in transmission connection with the display screen through a buffer layer.

Optionally, the buffer layer is made of silica gel.

Optionally, the outer ring of the rotating shaft is a polygon, and any one side of the polygon is matched with any one section of the supporting strip.

Optionally, the length of any one side of the polygon is equal to the size of any one section of the supporting bar close to the rotating shaft.

Optionally, when the support chain is in a flattened state, an included angle θ formed between two adjacent side surfaces in every two adjacent sections of the support bars and the number n of the sides of the polygon satisfy the following relationship:

θ＝360°/n。

optionally, the outer ring of the rotating shaft is circular.

Optionally, a flexible layer is disposed between the rotating shaft and the supporting chain.

Optionally, the flexible layer is made of rubber.

Optionally, the sliding middle frame is in contact with one side of the support chain, which is far away from the display screen.

A display device comprises a display screen and a fixed casing, and further comprises an under-screen supporting structure, wherein:

the display screen rolling and sliding part is in transmission connection with a rotating shaft in the lower screen supporting structure through a supporting chain in the lower screen supporting structure;

the non-rolling and sliding part of the display screen is fixed on the fixed casing.

Drawings

Fig. 1 is a schematic structural diagram of a screen lower supporting structure according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another under-screen support structure provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a rolling state of an under-screen support structure applied in a display device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an under-screen support structure applied in an expanded state of a display device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another under-screen support structure applied to a display device in a curled state according to an embodiment of the present invention.

Icon: 1-sliding the middle frame; 2-a rotating shaft; 3-supporting the chain; 4-a buffer layer; 5-a flexible layer; 6-a display screen; 7-fixing the machine shell; 31-support bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, an embodiment of the present invention provides a screen lower supporting structure configured to support a rollable and slidable display screen 6 in a display device, including: slip center 1, pivot 2 and support chain 3, wherein:

the rotating shaft 2 is arranged on one side of the sliding middle frame 1, which faces the rolling and sliding part of the display screen 6, and the rotating shaft 2 is in transmission connection with the display screen 6 through a supporting chain 3;

the supporting chain 3 comprises a plurality of sections of supporting bars 31, and the extending direction of the supporting bars 31 is parallel to the axis of the rotating shaft 2; the section of the supporting bar 31 perpendicular to the axis of the rotating shaft 2 is trapezoidal, and the size of the side departing from the rotating shaft 2 is larger than the size of the side close to the rotating shaft 2.

The screen lower supporting structure supports the display screen 6 which can be rolled and slid in the rolling and sliding display device, and the display screen 6 can be a flexible screen or a multi-section spliced screen and the like, and is not limited specifically. Specifically, the screen lower supporting structure comprises a sliding middle frame 1, a rotating shaft 2 and a supporting chain 3, wherein the rotating shaft 2 is installed on one side, facing the display screen 6, of the sliding middle frame 1, the rotating shaft 2 is connected with the display screen 6 through the supporting chain 3 in a transmission mode, one side, facing away from the sliding middle frame 1, of the rotating shaft 2 is connected with the display screen 6 in a transmission mode, the supporting chain 3 comprises a plurality of sections of supporting strips 31 arranged side by side, the extending direction of the supporting strips 31 is parallel to the axis of the rotating shaft 2, namely the supporting strips 31 extend along the axis of the rotating shaft 2, the supporting strips 31 in the supporting chain 3, which are in contact with the rotating shaft 2, are all parallel to the axis of the rotating shaft 2 at all times; the section of the supporting bar 31 perpendicular to the axis of the rotating shaft 2 is trapezoidal, and the size of one side departing from the rotating shaft 2 is larger than that of one side close to the rotating shaft 2, so that the supporting chain 3 is convenient to tightly wind on the rotating shaft 2 at one side departing from the display screen 6. In the rolling and sliding process of the display screen 6, the sliding middle frame 1 horizontally moves leftwards, the supporting chain 3 is unfolded rightwards along with the display screen 6, the rotating shaft 2 rotates clockwise under the action of the supporting chain 3, and the horizontal movement distance of the sliding middle frame 1 is equal to the rotating arc length of the rotating shaft 2. The roll-sliding part of the display screen 6 is supported by the supporting chain 3 and the rotating shaft 2 installed on the sliding middle frame 1, when the roll-sliding part is unfolded, the arc length of the support chain 3 rotating clockwise on the rotating shaft 2 is equal to the arc length of the rotating shaft 2 rotating, further the unfolded length of the display screen 6 is equal to the arc length of the support chain 3 rotating clockwise, the distance of the leftward movement of the sliding middle frame 1 is equal to the arc length of the rotating shaft 2 rotating, so that the sliding middle frame 1 and the support chain 3 can timely support the unfolded display screen 6, and the display screen 6 is prevented from being folded or warped.

Consequently, set up support chain 3 under the smooth part of display screen 6 book, through the cooperation of support chain 3 with pivot 2, on the basis of strengthening the screen under bracing, avoid the local warpage of screen, guarantee that display screen 6 evenly expandes, promote the stability of screen simultaneously.

In a possible way of realisation, the supporting strips 31 in the supporting chain 3 are steel strips.

Optionally, one side of the support chain 3, which is far away from the rotating shaft 2, is in transmission connection with the display screen 6 through the buffer layer 4.

In a possible implementation mode, a buffer layer 4 is arranged below the rolling and sliding part of the display screen 6, and the support chains 3 are adhered to the buffer layer 4 to prevent the support chains 3 from damaging the display screen 6.

It should be noted that the main function of the buffer layer 4 is to prevent the support chains 3 from damaging the display screen 6, so that any material capable of achieving the above function can be used as the above-mentioned buffer layer 4. Optionally, the buffer layer 4 is made of silica gel.

Optionally, the outer ring of the rotating shaft 2 is a polygon, and any one side of the polygon is matched with any one section of the supporting strip 31. Here, matching means that when the supporting chain 3 contacts the rotating shaft 2, each supporting strip 31 can accurately wind around the outer ring of the rotating shaft 2, so as to avoid slipping between the supporting chain 3 and the rotating shaft 2.

In a possible implementation manner, as shown in fig. 1, the rotating shaft 2 is a polygonal special-shaped shaft, and the side length of the polygon is matched with the short side of the steel bar, so that the rotating shaft 2 is matched with the supporting chain 3 under the screen during rotation, and the display screen 6 is ensured not to slip during the rolling process.

Alternatively, the side length of any one side of the polygon is equal to the size of any one section of the supporting strip 31 on the side close to the rotating shaft 2.

In a possible implementation mode, the side length of the polygon is consistent with the short side of the steel bar, so that the phenomenon of slipping or loosening is avoided.

Optionally, when the supporting chain is in the flattened state, an included angle θ formed between two adjacent side surfaces of each two adjacent supporting strips and the number n of the polygon satisfy the following relationship:

θ＝360°/n。

it should be noted that, when the supporting chain is in the flat state, the included angle θ formed between two adjacent side surfaces of every two adjacent supporting strips and the number n of the polygonal sides satisfy the above relationship, so that when the rotating shaft contacts with the supporting strips, the side surfaces of the two adjacent supporting strips can be attached to each other under the action of the rotating shaft, thereby avoiding the slipping or loosening phenomenon.

Optionally, the outer ring of the shaft 2 is circular.

Optionally, a flexible layer 5 is provided between the shaft 2 and the support chain 3.

In one possible implementation, as shown in fig. 2, the rotating shaft 2 is a standard circle, and a flexible layer 5 is coated on the rotating shaft 2 and contacts with the supporting chain 3 under the display screen 6. The flexible layer 5 has certain compression capacity, can guarantee under the screen that the billet combines more firm with pivot 2, reduces frictional force simultaneously, and is littleer at exhibition flat and rolling in-process resistance.

It should be noted that the flexible layer 5 needs to have a certain amount of compression, and thus any material that can achieve the above-mentioned function can be used as the above-mentioned flexible layer 5. Optionally, the flexible layer 5 is made of rubber.

Optionally, the sliding middle frame 1 is in contact with the side of the support chain 3 facing away from the display screen 6.

In a possible implementation, as shown in fig. 3 and 4, the display screen 6 is ensured to be uniformly unfolded through the cooperation of the screen lower supporting chain 3 and the polygonal rotating shaft 2. The supporting chain 3 below the display screen 6 of the flattening part is in contact with the sliding middle frame 1 of the whole machine, so that the surface flatness and the supporting performance are improved, and the touch effect is ensured. The supporting chain 3 below the display screen 6 on the curved surface of the rotating shaft 2 is matched with the polygonal rotating shaft 2, so that the phenomenon of slipping or loosening is avoided. The tail end of the shell is fixed with the torsional spring, and constant tension is provided during rolling. Because the screen under bracing chain 3 and the cooperation of slip center 1 and pivot 2, avoid the local warpage of screen, display screen 6 uses more firmly.

As shown in fig. 3-5, the embodiment of the present invention further provides a display device, which includes a display screen 6 and a fixed casing 7, and further includes the above under-screen supporting structure, wherein:

the rolling and sliding part of the display screen 6 is in transmission connection with a rotating shaft 2 in the lower screen supporting structure through a supporting chain 3 in the lower screen supporting structure;

the non-rollable portion of the display screen 6 is fixed to the stationary housing 7.

In the display device, the non-rolling-sliding part of the display screen 6 is fixed on the whole machine fixing machine case 7, the silica gel layer is arranged below the rolling-sliding part, a plurality of sections of supporting steel bars are bonded on the silica gel to form the supporting chain 3, and the supporting chain 3 is wound on the rotating shaft 2. In the rolling and sliding process, namely, from the rolling state shown in fig. 3 to the unfolding state shown in fig. 4, the sliding middle frame 1 drives the display screen 6 to unfold, and the display screen 6 of the rolling part drives the rotating shaft 2 to rotate through the supporting chain 3, so that the display screen 6 is evenly unfolded, the local warping of the screen is avoided, and the display screen 6 is more stable in use.

It will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An under-screen support structure configured to support a rollable display screen in a display device, comprising: slip center, pivot and support chain, wherein:

2. The under-screen support structure of claim 1, wherein a side of the support chain facing away from the rotating shaft is in driving connection with the display screen through a buffer layer.

3. The under-screen support structure of claim 2, wherein the buffer layer is made of silica gel.

4. The under-screen support structure of claim 1, wherein the outer ring of the rotating shaft is a polygon, and any one side of the polygon is matched with any one section of the supporting strip.

5. The under-screen support structure of claim 4, wherein the side length of any one side of the polygon is equal to the size of any one section of the support bar on the side close to the rotating shaft.

6. The under-screen support structure according to claim 4, wherein when the support chain is in the flat state, an included angle θ formed between two adjacent side surfaces of every two adjacent support bars and the number n of the polygon satisfy the following relationship:

θ＝360°/n。

7. the under-screen support structure of claim 1, wherein the outer circumference of the shaft is circular.

8. The under-screen support structure of claim 7, wherein a flexible layer is provided between the shaft and the support chain.

9. The under-screen support structure of claim 8, wherein the flexible layer is made of rubber.

10. The under-screen support structure of claim 1, wherein the sliding center is in contact with a side of the support chain facing away from the display screen.

11. A display device comprising a display screen and a stationary housing, further comprising an under-screen support structure according to any one of claims 1-10, wherein: