CN218038433U

CN218038433U - Supporting structure, folding display screen and terminal equipment

Info

Publication number: CN218038433U
Application number: CN202221559551.8U
Authority: CN
Inventors: 王欣怡; 林信伯
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-12-13
Anticipated expiration: 2032-06-20

Abstract

The application provides a bearing structure, folding display screen and terminal equipment, belongs to and shows technical field. This bearing structure includes: the first bending area and the second bending areas are positioned at two sides of the first bending area; the bearing structure has a plurality of bar holes that the array was arranged, and a plurality of bar holes include: the first strip-shaped holes are distributed in the first bending area and are arranged in an array mode, and the second strip-shaped holes are distributed in the second bending area and are arranged in an array mode; the first unit area of the opening of the first strip-shaped hole is larger than the second unit area of the opening of the second strip-shaped hole. The supporting structure can reduce the probability that the modulus of the supporting structure has sudden change.

Description

Supporting structure, folding display screen and terminal equipment

Technical Field

The application relates to the technical field of display, in particular to a supporting structure, a folding display screen and a terminal device.

Background

Terminal devices have become indispensable electronic products in people's lives. Various terminal devices such as mobile phones, tablet computers and notebook computers greatly increase the convenience of life of people. At present, foldable terminal devices are increasingly popular with people.

In general, a foldable display screen in a foldable terminal device generally includes: a flexible display panel and a support plate. The supporting plate may be connected to a back surface of the flexible display panel (i.e., a surface opposite to the display surface of the flexible display panel) to support the flexible display panel.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a supporting structure, a folding display screen and a terminal device, and the service life of the folding display screen is prolonged. The technical scheme is as follows:

according to an aspect of embodiments of the present application, there is provided a support structure for supporting a flexible display panel, the support structure including: the first bending area and the second bending area are positioned at two sides of the first bending area;

the bearing structure has a plurality of bar holes that the array was arranged, a plurality of bar holes include: the first strip-shaped holes are distributed in the first bending area and are arrayed, and the second strip-shaped holes are distributed in the second bending area and are arrayed;

the first unit area of the opening of the first bar-shaped hole is larger than the second unit area of the opening of the second bar-shaped hole, the first unit area is the ratio of the opening area of the first bar-shaped hole on the supporting structure to the area of the supporting structure, and the second unit area is the ratio of the opening area of the second bar-shaped hole on the supporting structure to the area of the supporting structure.

Optionally, in the plurality of second bar-shaped holes, the unit area of the opening of each row of the second bar-shaped holes gradually decreases along a direction away from the first bending region, where the unit area of the opening of each row of the second bar-shaped holes is a ratio of the opening area of the row of the second bar-shaped holes on the support structure to the area of the support structure.

Optionally, in the plurality of second strip-shaped holes, the lengths of the second strip-shaped holes in each row of the second strip-shaped holes are gradually reduced along a direction departing from the first bending area;

and/or the distance between every two adjacent second strip-shaped holes in each row of the second strip-shaped holes is gradually increased along the direction departing from the first bending area;

and/or the distance between every two adjacent rows of second strip-shaped holes is gradually increased along the direction departing from the first bending area.

Optionally, the support structure may be bent around a bending axis, and a length direction of each strip-shaped hole is parallel to a direction of the bending axis.

Optionally, a distance between every two adjacent second bar-shaped holes in the same row is greater than or equal to a distance between every two adjacent first bar-shaped holes in the same row.

Optionally, the length of the second bar-shaped hole is less than or equal to the length of the first bar-shaped hole.

Optionally, a distance between two adjacent rows of the second strip-shaped holes is greater than or equal to a distance between two adjacent rows of the first strip-shaped holes.

Optionally, after the support structure is folded, a bent portion of the support structure is in a shape of a water drop, and the bent portion of the support structure includes: the first water drop type bending area is positioned between the second water drop type bending area and the first water drop type bending area;

the first bending area and the second bending area are both positioned in the first water drop-shaped bending area; or the first bending area is positioned in the first water drop-shaped bending area, and the second bending area is positioned in the second water drop-shaped bending area; or the first bending area is positioned in the first water drop type bending area and the second water drop type bending area at the same time, and the second bending area is positioned in the third water drop type bending area.

Optionally, when the first bending region and the second bending region are both located in the first water drop type bending region, the strip-shaped hole is not disposed in a portion of the support structure located in the second water drop type bending region, and a portion of the support structure located in the third water drop type bending region is provided with a plurality of strip-shaped grooves;

or when the first bending region is located in the first water drop type bending region and the second bending region is located in the second water drop type bending region, the part, located in the third bending region, of the supporting structure is provided with a plurality of strip-shaped grooves.

Optionally, the support structure further has: auxiliary strip-shaped holes are distributed on two sides of one row of the strip-shaped holes, the length direction of each auxiliary strip-shaped hole is parallel to the length direction of the corresponding strip-shaped hole, an opening is formed in the end, deviating from the corresponding strip-shaped hole, of each auxiliary strip-shaped hole, and the surface where the opening is located is coplanar with the side surface of the supporting structure.

According to another aspect of the embodiments of the present application, there is provided a foldable display screen, including: a flexible display panel and the support structure of any of the above;

the support structure is connected with the back of the flexible display panel.

According to another aspect of the embodiments of the present application, there is provided a terminal device, including: the folding display screen.

The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:

in the support structure provided by the embodiment of the application, the modulus of the non-bending region part in the support structure is the largest, the modulus of the first bending region part in the support structure is the smallest, and the modulus of the second bending region part in the support structure is located between the first bending region part and the second bending region part. Therefore, the probability that the folding display screen is damaged after being subjected to external force due to sudden change of the modulus of the supporting structure can be effectively reduced by arranging the part with moderate modulus in the supporting structure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

FIG. 1 is a top view of a foldable display screen of the related art;

FIG. 2 is a schematic side view of the foldable display screen shown in FIG. 1;

FIG. 3 is a top view of a support structure provided by embodiments of the present application;

FIG. 4 is a cross-sectional view of the support structure shown in FIG. 3 at M-M';

FIG. 5 is a schematic representation of the change in modulus of the support structure shown in FIG. 3;

fig. 6 is a schematic view illustrating an arrangement of a plurality of first stripe holes according to an embodiment of the present disclosure;

fig. 7 is a schematic view illustrating an arrangement of a plurality of first stripe holes according to an embodiment of the present application;

fig. 8 is a schematic view illustrating an arrangement of a plurality of first stripe holes according to an embodiment of the present application;

FIG. 9 is a top view of another support structure provided by embodiments of the present application;

fig. 10 is an effect view of a support structure provided in an embodiment of the present application after folding;

FIG. 11 is a schematic cross-sectional view of the support structure shown in FIG. 10 after folding;

FIG. 12 is a schematic view of a bent portion of a support structure provided in an embodiment of the present application;

FIG. 13 is a cross-sectional view of the bent portion at N-N' in the support structure shown in FIG. 12;

FIG. 14 is a schematic view of a bent portion of another support structure provided in accordance with an embodiment of the present application;

FIG. 15 is a schematic structural view of a bent portion of another support structure provided in an embodiment of the present application;

fig. 16 is a top view of a foldable display screen provided in an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

Referring to fig. 1, fig. 1 is a top view of a foldable display screen in related art. The foldable display screen 00 may have a bending region 0a, and the foldable display screen 00 includes: a flexible display panel 10 and a support plate 20.

The structure of the folded display screen is shown for greater clarity. Referring to fig. 2, fig. 2 is a schematic side view of the foldable display screen shown in fig. 1. Among them, the support plate 20 may be connected to a rear surface of the flexible display panel 10 (i.e., a surface opposite to the display surface Z of the flexible display panel). To facilitate folding of the folded display panel 00, a portion of the support plate 20 located at the bending region 0a may be removed.

In this case, since the portion of the support plate 20 located in the bending region 0a is removed, the support plate 20 cannot provide a supporting force for the portion of the flexible display panel 10 located in the bending region 0a, resulting in a lower anti-pressing capability of the portion of the flexible display panel 10 located in the bending region 0a. Therefore, the portion of the flexible display panel 10 located in the bending region 0a is very vulnerable to damage, which results in a short service life of the foldable display screen 00.

Referring to fig. 3 and 4, fig. 3 is a top view of a support structure provided in an embodiment of the present application, and fig. 4 is a cross-sectional view of the support structure shown in fig. 3 at M-M'. The folding display 000 may include: a support structure 100 and a flexible display panel (not shown in the figures). The support structure 100 is used to support the flexible display panel, and the support structure 100 may improve the anti-squeezing performance of the bending region of the flexible display panel.

The support structure 100 includes: a first bending region 100a, and second bending regions 100b located at both sides of the first bending region 100a.

The support structure 100 has a plurality of bar holes 300 arranged in an array. The length direction of the bar-shaped hole 300 is the extending direction of the bar-shaped hole 300, and the length of the bar-shaped hole 300 is the distance between the two ends of the bar-shaped hole 300 in the length direction (or extending direction). The length direction of each strip-shaped hole 300 is parallel to the direction of the bending axis L of the support structure (or the flexible display panel, the foldable display screen). For example, the strip-shaped holes 300 in the same row of strip-shaped holes 300 may have the same length and the same width; for example, the distances between any two adjacent bar-shaped holes 300 in the same row of bar-shaped holes 300 may be equal.

In the embodiment of the present application, the plurality of bar holes 300 may improve the bending property of the supporting structure 100, so that the supporting structure 100 and the flexible display panel connected to the supporting structure 100 can be repeatedly folded and unfolded. Therefore, by providing a plurality of bar-shaped holes 300 in the supporting structure 100, not only the bending property of the supporting structure 100 can be improved, but also the anti-squeezing property of the bending region of the flexible display panel 200 can be ensured to be greater.

The plurality of stripe holes 300 arranged in an array may include: a plurality of first bar-shaped holes 301 distributed in the first bending region 100a in an array arrangement, and a plurality of second bar-shaped holes 302 distributed in the second bending region 100b in an array arrangement.

A first unit area of an opening of the first bar-shaped hole 301 is larger than a second unit area of an opening of the second bar-shaped hole 302, the first unit area is a ratio of an opening area of the first bar-shaped hole 301 on the supporting structure 100 to an area of the supporting structure 100, and the second unit area is a ratio of an opening area of the second bar-shaped hole 302 on the supporting structure 100 to an area of the supporting structure 100.

The area of the support structure 100 in the embodiment of the present application refers to: the area of the area enclosed by the sides of the support structure 100. For example, the support structure 100 is a rectangular support plate having an area that is the area of a rectangular region surrounded by four sides of the rectangular support plate.

In the embodiment of the present application, the support structure 100 is connected to the flexible display panel, so that the foldable display screen can be obtained. The support structure 100 may further have non-bending regions 100c located at both sides of the first bending region 100a. The second inflection region 100b is located between the first inflection region 100a and the non-inflection region 100c. The non-bending region 100c of the supporting structure 100 is not provided with a strip-shaped hole therein, and is connected to the flexible display panel 200 in a whole surface (i.e., a planar structure). The first unit area of the opening of the first bar hole 301 is larger than the second unit area of the opening of the second bar hole 302. Therefore, the unit area of the contact with the flexible display panel at the second bending region 100b is larger than the unit area of the contact with the flexible display panel at the first bending region 100a and is smaller than the unit area of the contact with the flexible display panel at the non-bending region 100c. And since the unit area of the contact of the support structure 100 with the flexible display panel is positively correlated with the modulus of the support structure 100. Thus, the portion of the support structure 100 that is not the inflection region 100c has the greatest modulus, the portion of the support structure 100 that is the first inflection region 100a has the least modulus, and the portion of the support structure 100 that is the second inflection region 100b has the modulus in between. Therefore, by arranging the portion with the moderate modulus (i.e., the second bending region portion where the plurality of second strip-shaped holes 302 are located) in the support structure 100, the probability that the folding display screen is damaged after being subjected to an external force due to the sudden change of the modulus of the support structure 100 can be effectively reduced.

In summary, the present application provides a supporting structure, including: the first bending area and the second bending area are positioned at two sides of the first bending area. The first unit area of the opening of the first strip-shaped hole is larger than the second unit area of the opening of the second strip-shaped hole. Therefore, the unit area of the contact between the second bending region and the flexible display panel is larger than the unit area of the contact between the first bending region and the flexible display panel and is smaller than the unit area of the contact between the non-bending region and the flexible display panel. And the unit area of the contact of the supporting structure and the flexible display panel is in positive correlation with the modulus of the supporting structure. Thus, the modulus of the non-inflection region portions of the support structure is maximized, the modulus of the first inflection region portions of the support structure is minimized, and the modulus of the second inflection region portions of the support structure is located therebetween. Therefore, the part with moderate modulus (namely the second bending area part where the second strip-shaped holes are located) is arranged in the supporting structure, so that the probability that the folding display screen is damaged after being subjected to external force due to sudden change of the modulus of the supporting structure can be effectively reduced.

It should be noted that, in the plurality of second bar-shaped holes 302, the unit area of the opening of each column of the second bar-shaped holes 302 may be equal, or may gradually decrease along the direction away from the first bending area 100a. Wherein, the unit area of the opening of each row of the second stripe holes 302 is the ratio of the area of the opening of the row of the second stripe holes 302 on the support structure 100 to the area of the support structure 100.

When the unit areas of the openings of the second bar holes 302 in the respective rows are equal, the second bar holes 302 in the plurality of second bar holes 302 have the same shape, and the opening areas of the second bar holes 302 on the support structure 100 are equal.

When the unit area of the opening of each row of second bar-shaped holes 302 in the plurality of second bar-shaped holes 302 is gradually decreased along the direction departing from the first bending region 100a, the area of the second bending region 100b contacting the flexible display panel is gradually increased along the direction departing from the first bending region 100a, so that the modulus of the second bending region 100b is gradually changed.

In this case, as shown in fig. 5, fig. 5 is a schematic view of the change in modulus of the support structure shown in fig. 3. The x-axis direction is perpendicular to a bending axis L of the foldable display screen (the bending axis L is exemplified by a center line of the first bending region 100a in fig. 3 and 5). The x-axis represents the horizontal distance between a location in the support structure and the folding axis L of the folded display screen and the y-axis represents the modulus of a location in the support structure. The modulus of the second inflection zones 100b in the support structure 100 gradually increases in a direction away from the first inflection zones 100a. In this way, the modulus of the second inflection zone 100b in the support structure 100 is smaller near the first inflection zone 100a and larger away from the first inflection zone 100a (i.e., near the non-inflection zone). While the modulus of the first bending region 100a in the support structure 100 is smaller, the modulus of the non-bending region 100c in the support structure 100 is larger. Therefore, the abrupt change of the modulus of the support structure 100 at the position where the second bending region 100b is connected to the first bending region 100a can be avoided, and the abrupt change of the modulus of the support structure 100 at the position where the second bending region 100b is connected to the non-bending region 100c can also be avoided.

Optionally, the width range of the second bending region 100b is 1.5 mm to 3 mm, the length range of the bar-shaped hole 300 is 1 mm to 15 mm, and the width range of the bar-shaped hole 300 is as follows: 0.1 mm to 1 mm. In the present application, by defining the dimensions of the strip-shaped hole 300, it is ensured that the modulus of the second bending zone 100b in the support structure 100 gradually increases in the direction away from the first bending zone 100a.

In the embodiment of the present application, the size and the arrangement pitch of the plurality of second bar-shaped holes 302 may be adjusted, so that the unit area of the openings of each row of second bar-shaped holes 302 gradually decreases along the direction departing from the first bending region 100a. As shown in fig. 3, the supporting structure 100 can be bent around a bending axis L, and the length direction of each strip-shaped hole 300 is parallel to the direction of the bending axis L. It should be noted that the bending axis L may be an axis of the bending structure formed by the first bending region 100a when the support plate 100 is bent.

Illustratively, in the plurality of second bar holes 302, the length of the second bar hole 302 in each row of the second bar holes 302 gradually decreases in a direction away from the first bending region 100a; and/or the distance between every two adjacent second strip-shaped holes 302 in each row of second strip-shaped holes 302 gradually increases along the direction departing from the first bending area 100a; and/or the distance between every two adjacent columns of second strip-shaped holes 302 gradually increases in the direction away from the first bending area 100a. For this reason, the embodiment of the present application is schematically illustrated by taking the following three alternative implementations as examples:

a first optional implementation manner, as shown in fig. 6, fig. 6 is a schematic diagram of an arrangement manner of a plurality of first bar-shaped holes provided in an embodiment of the present application. Among the second bar holes 302, the length of the second bar hole 302 in each row of the second bar holes 302 is gradually reduced along the direction E away from the first bending region 100a. For example, as shown in fig. 6, among the plurality of second bar holes 302, the second bar holes 302 in the P1 column are closer to the first bending region 100a than the second bar holes 302 in the P2 column. Therefore, the length H2 of the second bar holes 302 in the row P2 is smaller than the length H1 of the second bar holes 302 in the row P1. In the embodiment of the present application, the length of the second bar hole 302 is less than or equal to the length of the first bar hole 301.

In this embodiment, in the plurality of second bar-shaped holes 302, when the lengths of the second bar-shaped holes 302 in each row of second bar-shaped holes 302 gradually decrease along the direction away from the first bending region 100a, the distance between every two adjacent second bar-shaped holes 302 in the same row of second bar-shaped holes 302 is greater than or equal to the distance between every two adjacent first bar-shaped holes 301 in the same row of first bar-shaped holes 301, and the distance between two adjacent rows of second bar-shaped holes 302 is greater than or equal to the distance between two adjacent rows of first bar-shaped holes 301.

In one case, if the distance between every two adjacent second stripe holes 302 in the same row of second stripe holes 302 is equal to the distance between every two adjacent first stripe holes 301 in the same row of first stripe holes 301, and the distance between two adjacent rows of second stripe holes 302 is equal to the distance between two adjacent rows of first stripe holes 301. Then, in the plurality of second bar-shaped holes 302, the number of the second bar-shaped holes 302 in each column of the second bar-shaped holes 302 gradually increases along the direction departing from the first bending region 100a. For this reason, the number of the connection portions between two adjacent second bar-shaped holes 302 in each row of second bar-shaped holes 302 increases gradually in a direction away from the first bending region 100a. Wherein this connecting portion belongs to a portion within the support structure 100. Therefore, the design ensures that the area of the portion of the support structure 100 located in the second bending region 100b contacting the flexible display panel 200 gradually increases along the direction away from the first bending region 100a.

In another case, if the distance between every two adjacent second bar holes 302 in the same row of second bar holes 302 is greater than the distance between every two adjacent first bar holes 301 in the same row of first bar holes 301. The area of the portion of the support structure 100 located in the second bending region 100b contacting the flexible display panel 200 may further gradually increase along a direction away from the first bending region 100a. It should be noted that, for details of the arrangement of the plurality of second bar holes 302, reference may be made to the following second alternative implementation, and details are not described here.

In another case, if the distance between two adjacent columns of the second stripe holes 302 is greater than the distance between two adjacent columns of the first stripe holes 301. It is also possible to further increase the area of the portion of the support structure 100 located in the second bending region 100b contacting the flexible display panel 200 in a direction away from the first bending region 100a. It should be noted that, for details of the arrangement of the second strip-shaped holes 302, reference may be made to the following third alternative implementation, and details are not described here again.

In a second alternative implementation manner, as shown in fig. 7, fig. 7 is a schematic view of an arrangement manner of a plurality of first bar-shaped holes provided in this embodiment of the present application. In the second plurality of bar-shaped holes 302, the distance between every two adjacent second bar-shaped holes 302 in each column of second bar-shaped holes 302 gradually increases along the direction E away from the first bending area 100a. For example, as shown in fig. 7, among the plurality of second bar holes 302, the second bar holes 302 in the P1 column are closer to the first bending region 100a than the second bar holes 302 in the P2 column. Therefore, the distance Y2 between every two adjacent second bar-shaped holes 302 in the P2 column is greater than the distance Y1 between every two adjacent second bar-shaped holes 302 in the P1 column.

In the embodiment of the present application, the distance between every two adjacent second stripe holes 302 in the same column of second stripe holes 302 is greater than or equal to the distance between every two adjacent first stripe holes 301 in the same column of first stripe holes 301. The distance range between every two adjacent second bar-shaped holes 302 in each column of second bar-shaped holes 302 is not particularly limited in the embodiments of the present application. Optionally, the distance range between every two adjacent second bar-shaped holes 302 in each row of second bar-shaped holes 302 is: 0.1 mm to 1 mm.

In the embodiment of the present application, the length of the second bar-shaped hole 302 is less than or equal to the length of the first bar-shaped hole 301, and the distance between two adjacent columns of the second bar-shaped holes 302 is greater than or equal to the distance between two adjacent columns of the first bar-shaped holes 301.

In one case, if the length of the second bar hole 302 is equal to the length of the first bar hole 301, and the distance between two adjacent columns of the second bar holes 302 is equal to the distance between two adjacent columns of the first bar holes 301. Then, in the plurality of second bar-shaped holes 302, the area of the connection portion between two adjacent second bar-shaped holes 302 in each column of second bar-shaped holes 302 gradually increases in the direction away from the first bending region 100a. Wherein this connecting portion belongs to a portion within the support structure 100. Therefore, the design ensures that the area of the portion of the support structure 100 located in the second bending region 100b contacting the flexible display panel 200 gradually increases along the direction away from the first bending region 100a.

In another case, if the length of the second bar hole 302 is smaller than the length of the first bar hole 301. The area of the portion of the support structure 100 located in the second bending region 100b contacting the flexible display panel 200 may further gradually increase along a direction away from the first bending region 100a. It should be noted that, for details of the arrangement of the second strip-shaped holes 302, reference may be made to the first optional implementation manner, and details are not described here again.

In another case, if the distance between two adjacent columns of the second stripe holes 302 is greater than the distance between two adjacent columns of the first stripe holes 301. It is also possible to further increase the area of the portion of the support structure 100 located in the second bending region 100b contacting the flexible display panel 200 in a direction away from the first bending region 100a. It should be noted that, for details of the arrangement of the second bar holes 302, reference may be made to the following third alternative implementation, and details are not described here.

In a third alternative implementation manner, as shown in fig. 8, fig. 8 is a schematic view of an arrangement manner of a plurality of first bar-shaped holes provided in an embodiment of the present application. In the plurality of second bar-shaped holes 302, the distance between every two adjacent columns of second bar-shaped holes 302 gradually increases along the direction E away from the first bending region 100a. For example, as shown in fig. 8, among the plurality of second bar holes 302, the second bar holes 302 in the P1 column are closer to the first bending region 100a than the second bar holes 302 in the P2 column; the second slit 302 in the row P2 is closer to the first bending region 100a than the second slit 302 in the row P3. Therefore, the distance X2 between the adjacent second bar-shaped holes 302 in the P2 column and the P3 column is greater than the distance X1 between the adjacent second bar-shaped holes 302 in the P1 column and the P2 column.

In the embodiment of the present application, the distance between two adjacent columns of the second strip-shaped holes 302 is greater than or equal to the distance between two adjacent columns of the first strip-shaped holes 301. The distance range between every two adjacent columns of the second bar-shaped holes 302 in the plurality of second bar-shaped holes 302 is not particularly limited in the embodiment of the present application. Optionally, in the plurality of second bar-shaped holes 302, a distance range between every two adjacent columns of second bar-shaped holes 302 is: 0.1 mm to 5 mm.

In the embodiment of the present application, in the plurality of second bar holes 302, when the distance between every two adjacent columns of second bar holes 302 gradually increases along the direction departing from the first bending region 100a, the length of the second bar holes 302 is less than or equal to the length of the first bar holes 301, and the distance between every two adjacent second bar holes 302 in the same column of second bar holes 302 is greater than or equal to the distance between every two adjacent first bar holes 301 in the same column of first bar holes 301.

In one case, if the length of the second stripe holes 302 is equal to the length of the first stripe holes 301, and the distance between every two adjacent second stripe holes 302 in the same row of second stripe holes 302 is equal to the distance between every two adjacent first stripe holes 301 in the same row of first stripe holes 301. Then, in the plurality of second bar-shaped holes 302, the area of the connection portion between every two adjacent columns of second bar-shaped holes 302 gradually increases in the direction away from the first bending region 100a. And the connecting portions here also belong to the parts within the support structure 100. Therefore, the design can ensure that the area of the portion of the support structure 100 located in the second bending region 100b contacting the flexible display panel 200 gradually increases along the direction away from the first bending region 100a.

In another case, if the distance between every two adjacent second bar holes 302 in the same row of second bar holes 302 is greater than the distance between every two adjacent first bar holes 301 in the same row of first bar holes 301. The area of the portion of the support structure 100 located in the second bending region 100b contacting the flexible display panel 200 may further gradually increase along a direction away from the first bending region 100a. It should be noted that, for details of the arrangement of the second bar holes 302, reference may be made to the second alternative implementation manner described above, and details are not described here.

Referring to fig. 9, fig. 9 is a top view of another supporting structure provided in the present application. The support structure 100 further has: the auxiliary strip-shaped holes 400 are distributed on two sides of the row of strip-shaped holes 300, and the length direction of the auxiliary strip-shaped holes 400 is parallel to the length direction of the strip-shaped holes 300. The end of the auxiliary strip-shaped hole 400 facing away from the strip-shaped hole 300 has an opening, and the plane of the opening is coplanar with the side of the support structure 100. The length direction of the auxiliary strip-shaped hole 400 is the same as the length direction of the strip-shaped hole 300, and the width of the auxiliary strip-shaped hole 400 is equal to the width of the strip-shaped hole 300. Optionally, auxiliary strip-shaped holes 400 are distributed on two sides of at least part of the rows of strip-shaped holes 300 in the plurality of rows of strip-shaped holes 300. Illustratively, as shown in fig. 9, in the plurality of rows of strip-shaped holes 300, two adjacent rows of strip-shaped holes 300 are provided, auxiliary strip-shaped holes 400 are distributed on both sides of one row of strip-shaped holes 300, and auxiliary strip-shaped holes 400 are not distributed on both sides of the other row of strip-shaped holes 300.

In the present application, since the auxiliary strip-shaped holes 400 are distributed on two sides of the partial row of strip-shaped holes 300, and the end of the auxiliary strip-shaped hole 400 departing from the strip-shaped hole 300 has an opening, a displacement space is provided for the deformation of the support structure 100 in the folding or unfolding process, and the support structure 100 is prevented from being partially wrinkled when deformed. Therefore, the internal stress of the portion of the support structure 100 connected to the bending region at each position does not suddenly change, and the flexible display panel 200 can be folded or unfolded normally.

For example, please refer to fig. 10 and 11, fig. 10 is an effect diagram of a folded support structure provided in an embodiment of the present application, and fig. 11 is a schematic cross-sectional view of the folded support structure shown in fig. 10. The folding display screen can be a water drop type folding display screen. When the support structure 100 is folded to the final state, the bent portion of the support structure 100 is "drop-shaped". The bent portions of the support structure 100 include: the first water drop type bending area A is positioned between the second water drop type bending area B and the first water drop type bending area A. After the supporting structure 100 is folded, the bending curvature of the first water drop type bending region a is the largest, the bending curvature of the second water drop type bending region B is the smallest, and the bending curvature of the third water drop type bending region C is between the bending curvatures of the first water drop type bending region a and the second water drop type bending region B. Thus, after the support structure 100 is folded, the portions of the first, second and third water drop-shaped bending regions a, B and C may be "water drop-shaped".

It should be noted that after the support structure 10 is folded, the two non-bending regions 100c in the support structure 100 are disposed oppositely and can be attached together.

In the embodiment of the present application, the width and the area of the second bending region 100b are not particularly limited. The second bending region 100B may be located in the first water droplet type bending region a, the second water droplet type bending region B, or the third water droplet type bending region C. The embodiment of the present application takes the following three optional implementation manners as examples for schematic description:

in a first alternative implementation manner, as shown in fig. 12, fig. 12 is a schematic structural diagram of a bent portion in a support structure provided in an embodiment of the present application. The first bending area 100a and the second bending area 100B of the supporting structure 100 are both located in the first water drop type bending area a, the portion of the supporting structure 100 located in the second water drop type bending area B is not provided with a strip-shaped hole 300 (i.e. a planar structure), and the portion of the supporting structure 100 located in the third water drop type bending area C is provided with a plurality of strip-shaped grooves V.

In this case, the portion of the support structure 100 located in the second water drop-shaped bending region B is a planar structure. Therefore, in the second water drop type bending region B, the contact area of the support structure 100 and the flexible display panel 200 is larger, so that the portion of the flexible display panel 200 located in the second water drop type bending region B has larger anti-squeezing performance. And because the bending curvature of the portion of the support structure 100 located at the second water drop-shaped bending region B is the smallest. Therefore, even if the strip-shaped hole 300 is not provided in the second water drop type bending region B, it is ensured that the part of the support structure 100 can be normally bent with a small width.

As shown in fig. 13, fig. 13 is a cross-sectional view of the bent portion at N-N' in the support structure shown in fig. 12. The length direction of the plurality of bar-shaped grooves V of the portion of the support structure 100 located in the third water drop type bending region C is parallel to the length direction of the bar-shaped holes 300, and the notches of the bar-shaped grooves V are located on one side of the support structure 100 departing from the flexible display panel 200. By providing a plurality of strip-shaped grooves V in the portion of the support structure 100 located in the third water droplet type bending region C, the bendability of the portion of the support structure 100 in the third water droplet type bending region C can be improved.

In a second alternative implementation manner, as shown in fig. 14, fig. 14 is a schematic structural diagram of a bent portion in another support structure provided in an embodiment of the present application. The first bending region 100a of the supporting structure 100 is located in the first water-drop-shaped bending region a, the second bending region 100B of the supporting structure 100 is located in the second water-drop-shaped bending region B, and a portion of the supporting structure 100 located in the third water-drop-shaped bending region C is provided with a plurality of strip-shaped grooves V.

In this case, when the second bending region 100B is located in the second water droplet type bending region B, the plurality of second stripe holes 302 distributed in the second bending region 100B in an array are located in the second water droplet type bending region B. In this way, the flexibility of the portion of the support structure 100 located in the second water droplet-shaped bending region B may be improved by the plurality of second bar-shaped holes 302. Moreover, the contact area between the portion of the support structure 100 located in the second water drop type bending region B and the flexible display panel 200 can be reduced through the plurality of second stripe holes 302, and thus the modulus of the portion of the support structure 100 located in the second water drop type bending region B can be reduced. In this way, it is ensured that the modulus of the portion of the support structure 100 located in the first water drop type bending region a is similar to the modulus of the portion of the support structure 100 located in the second water drop type bending region B; and the modulus of the portion of the support structure 100 located in the third water drop type bending region C is similar to the modulus of the portion of the support structure 100 located in the second water drop type bending region B. Therefore, the modulus of the support structure 100 does not change abruptly at the position where the first water droplet type bent region a is connected to the second water droplet type bent region B and the position where the second water droplet type bent region B is connected to the third water droplet type bent region C. Therefore, the probability that the folding display screen is damaged after being subjected to external force due to the fact that the modulus of the supporting structure 100 changes suddenly can be effectively reduced.

In a third alternative implementation manner, as shown in fig. 15, fig. 15 is a schematic structural diagram of a bent portion in another support structure provided in an embodiment of the present application. The first bending region 100a of the supporting structure 100 is located in the first water drop type bending region a and the second water drop type bending region B, and the second bending region 100B of the supporting structure 100 is located in the third water drop type bending region C.

In this case, when the second bending region 100b is located in the third water drop type bending region C, the plurality of second bar-shaped holes 302 distributed in the second bending region 100b are located in the third water drop type bending region C. In this way, the flexibility of the support structure 100 in the third water drop-shaped bending region C can be improved by the plurality of second elongated holes 302. Moreover, the contact area between the portion of the support structure 100 located in the third water droplet type bending region C and the flexible display panel 200 can be reduced through the plurality of second stripe holes 302, and thus the modulus of the portion of the support structure 100 located in the third water droplet type bending region C can be reduced. In this way, the modulus of the portion of the support structure 100 located in the third water drop type bending region C is ensured to be similar to the modulus of the portion of the support structure 100 located in the second water drop type bending region B; and the modulus of the portion of the support structure 100 located in the third water droplet type bending region C is similar to the modulus of the portion of the support structure 100 located in the non-bending region 100C. Therefore, it is possible to prevent the modulus of the support structure 100 from abruptly changing at the position where the second droplet-shaped bent region B and the third droplet-shaped bent region C are connected, and it is also possible to prevent the modulus of the support structure 100 from abruptly changing at the position where the third droplet-shaped bent region C and the non-bent region 100C are connected.

It should be noted that, for the plurality of first bar holes 301 in the first bending region 100a, along the direction away from the first bending region 100a, each first bar hole 301 in a row of the first bar holes 301 may be aligned or may not be aligned. Illustratively, when the respective first stripe holes 301 in a row of first stripe holes 301 are aligned, as shown in fig. 3, for any two adjacent first stripe holes 301 in a row of first stripe holes 301, the end of one first stripe hole 301 is aligned with the end of another first stripe hole 301. When the respective first strip holes 301 in one row of the first strip holes 301 are not aligned, as shown in fig. 9, 12, 14, and 15, for any two adjacent first strip holes 301 in one row of the first strip holes 301, the end of one first strip hole 301 is adjacent to the middle of the other first strip hole 301.

In summary, the present application provides a supporting structure, including: the first bending area and the second bending area are positioned at two sides of the first bending area. The first unit area of the openings of the first strip-shaped holes in the first bending area is larger than the second unit area of the openings of the second strip-shaped holes in the second bending area. Therefore, the unit area of the contact between the second bending region and the flexible display panel is larger than the unit area of the contact between the first bending region and the flexible display panel and is smaller than the unit area of the contact between the non-bending region and the flexible display panel. And because the unit area of the contact of the support structure and the flexible display panel is in positive correlation with the modulus of the support structure. Thus, the modulus of the non-inflection region portions of the support structure is maximized, the modulus of the first inflection region portions of the support structure is minimized, and the modulus of the second inflection region portions of the support structure is in between. Therefore, the part with moderate modulus (namely the second bending area part where the second strip-shaped holes are located) is arranged in the supporting structure, so that the probability that the folding display screen is damaged after being subjected to external force due to sudden change of the modulus of the supporting structure can be effectively reduced.

Referring to fig. 16, fig. 16 is a top view of a foldable display screen according to an embodiment of the present application. The embodiment of the present application further provides a foldable display screen 000, where the foldable display screen 000 may include: a flexible display panel 200 and a support structure 100; the support structure 100 is connected to the back side of the flexible display panel 200 (i.e., the side opposite to the display side of the flexible display panel). Here, the flexible Display panel 200 may be an Organic Light Emitting Display (OLED) Display panel or an Active Matrix Organic Light Emitting Diode (AM-OLED) Display panel. When the flexible display panel 200 is an OELD display panel or an AM-OLED display panel, the flexible display panel 200 may be a top emission type display panel or a bottom emission type display panel.

The embodiment of the present application further provides a terminal device, where the terminal device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. The terminal device may include: the power supply assembly and the folding display screen are arranged on the base; the power supply assembly is electrically connected with the foldable display screen and used for supplying power to the foldable display screen.

All the above optional technical solutions may be combined arbitrarily to form optional embodiments of the present application, and are not described herein again.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A support structure, characterized in that the support structure (100) is used for supporting a flexible display panel, the support structure (100) comprising: a first bending area (100 a) and second bending areas (100 b) positioned at two sides of the first bending area (100 a);

the support structure (100) has a plurality of bar-shaped holes (300) arranged in an array, the plurality of bar-shaped holes (300) comprising: a plurality of first strip-shaped holes (301) distributed in the first bending area (100 a) in an array arrangement mode, and a plurality of second strip-shaped holes (302) distributed in the second bending area (100 b) in an array arrangement mode;

wherein a first unit area of an opening of the first bar-shaped hole (301) is larger than a second unit area of an opening of the second bar-shaped hole (302), the first unit area is a ratio of an opening area of the first bar-shaped hole (301) on the support structure (100) to an area of the support structure (100), and the second unit area is a ratio of an opening area of the second bar-shaped hole (302) on the support structure (100) to the area of the support structure (100).

2. The support structure according to claim 1, wherein in the plurality of second bar-shaped apertures (302), the unit area of the opening of each column of the second bar-shaped apertures (302) decreases in a direction away from the first bending region (100 a), wherein the unit area of the opening of each column of the second bar-shaped apertures (302) is the ratio of the area of the opening of the column of the second bar-shaped apertures (302) on the support structure (100) to the area of the support structure (100).

3. The support structure according to claim 2, wherein, of the plurality of second elongated apertures (302), the length of a second elongated aperture (302) within each column of the second elongated apertures (302) decreases progressively in a direction away from the first inflection zone (100 a);

and/or the distance between every two adjacent second strip-shaped holes (302) in each row of second strip-shaped holes (302) is gradually increased along the direction departing from the first bending area (100 a);

and/or the distance between every two adjacent columns of the second strip-shaped holes (302) is gradually increased along the direction departing from the first bending area (100 a).

4. The support structure according to claim 3, wherein the distance between every two adjacent second strip apertures (302) in the same row of second strip apertures (302) is greater than or equal to the distance between every two adjacent first strip apertures (301) in the same row of first strip apertures (301).

5. A support structure according to claim 3, wherein the length of the second elongated aperture (302) is less than or equal to the length of the first elongated aperture (301).

6. A support structure as claimed in claim 3, wherein the distance between two adjacent columns of said second strip-shaped apertures (302) is greater than or equal to the distance between two adjacent columns of said first strip-shaped apertures (301).

7. The support structure of any one of claims 1 to 6, wherein, after the support structure (100) is folded, the bent portion of the support structure (100) is in the form of a drop of water, and the bent portion of the support structure (100) comprises: the first water drop type bending area (A), a second water drop type bending area (B) and a third water drop type bending area (C) are positioned at two sides of the first water drop type bending area (A), and the second water drop type bending area (B) is positioned between the third water drop type bending area (C) and the first water drop type bending area (A);

wherein the first bending zone (100 a) and the second bending zone (100 b) are both located within the first drop-shaped bending zone (A); or the first bending area (100 a) is positioned in the first water drop type bending area (A), and the second bending area (100B) is positioned in the second water drop type bending area (B); or, the first bending region (100 a) is located in both the first drop-shaped bending region (a) and the second drop-shaped bending region (B), and the second bending region is located in the third drop-shaped bending region (C).

8. The supporting structure according to claim 7, wherein when the first bending region (100 a) and the second bending region (100B) are both located in the first water drop type bending region (A), the strip-shaped hole (300) is not provided in the portion of the supporting structure (100) located in the second water drop type bending region (B), and the portion of the supporting structure (100) located in the third water drop type bending region (C) has a plurality of strip-shaped grooves (V);

or when the first bending region (100 a) is located in the first water drop type bending region (a) and the second bending region (100B) is located in the second water drop type bending region (B), the part of the support structure (100) located in the third water drop type bending region (C) is provided with a plurality of strip-shaped grooves (V).

9. The support structure of any one of claims 1 to 6, wherein the support structure (100) further comprises: auxiliary strip-shaped holes (400) are distributed on two sides of one row of strip-shaped holes (300), the length direction of the auxiliary strip-shaped holes (400) is parallel to the length direction of the strip-shaped holes (300), an opening is formed in the end, away from the strip-shaped holes (300), of the auxiliary strip-shaped holes (400), and the plane of the opening is coplanar with the side face of the supporting structure (100).

10. The support structure of any one of claims 1 to 6, wherein the support structure (100) is bendable about a bending axis (L), and the length direction of each of the strip-shaped holes (300) is parallel to the direction of the bending axis (L).

11. A foldable display screen, the foldable display screen comprising: a flexible display panel (200) and the support structure (100) of any one of claims 1-10;

the support structure (100) is connected to the back side of the flexible display panel (200).

12. A terminal device, characterized in that the terminal device comprises: the foldable display of claim 11.