CN115273673B

CN115273673B - Support piece of flexible display module assembly, flexible display module assembly and display device

Info

Publication number: CN115273673B
Application number: CN202211010094.1A
Authority: CN
Inventors: 朱红; 沈酉庆
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2024-02-09
Anticipated expiration: 2042-08-22
Also published as: CN115273673A

Abstract

A support piece of a flexible display module, the flexible display module and a display device. The support piece of flexible display module assembly includes: a plurality of support bars and a reinforcing rib structure arranged between the adjacent support bars; the extending direction of the supporting strips is a first direction, a first interval is arranged between every two adjacent supporting strips, the reinforcing rib structures are arranged in the first interval, the reinforcing rib structures among different supporting strips are arranged in a staggered mode along a second direction, and the first direction and the second direction are crossed. Through set up the strengthening rib structure between adjacent support bar, can promote support piece's anti bending and antitorque commentaries on classics ability, improve support piece's shock resistance, and help reducing support piece's assembly industry difference, promote support piece's wholeness.

Description

Support piece of flexible display module assembly, flexible display module assembly and display device

Technical Field

The embodiment of the disclosure relates to the technical field of display, in particular to a support piece of a flexible display module, the flexible display module and a display device.

Background

Currently, the application forms of flexible display panels on the market include folding and scrolling. For the display panel of the folding screen or the rolling screen, a supporting piece is required to be arranged below the screen, and besides the supporting piece can support the screen to be kept flat in a flattened state, the supporting piece also has certain bending resistance to ensure that the screen can still work normally after being bent or rolled for many times, and local deformation caused by stress accumulation can not occur.

The inventor of the application researches and discovers that the support piece of the existing flexible display panel has the problem of poor bending resistance.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The embodiment of the disclosure provides a support piece of a flexible display module, the flexible display module and a display device, and aims to solve the problem that the support piece of the conventional flexible display panel has poor bending resistance.

The embodiment of the disclosure provides a support piece of a flexible display module, which is characterized by comprising: a plurality of support bars and a reinforcing rib structure arranged between the adjacent support bars; the extending direction of the supporting strips is a first direction, a first interval is arranged between every two adjacent supporting strips, the reinforcing rib structures are arranged in the first interval, the reinforcing rib structures between different supporting strips are arranged in a staggered mode along a second direction, and the first direction and the second direction are crossed.

In an exemplary embodiment, the height of the stiffener structure is less than or equal to the height of the support bar; the height of the reinforcing rib structure is the distance between the surface of the reinforcing rib structure, which is close to the screen side of the flexible display module, and the surface, which is far away from the screen side of the flexible display module, of the reinforcing rib structure, and the height of the supporting bar is the distance between the surface of the supporting bar, which is close to the screen side of the flexible display module, and the surface, which is far away from the screen side of the flexible display module.

In an exemplary embodiment, the height of the stiffener structure is greater than or equal to 10% of the height of the support bar.

In an exemplary embodiment, the height of the support bar is set to be greater than or equal to 0.05 mm and less than or equal to 1 mm; the height of the reinforcing rib structure is set to be greater than or equal to 0.05 mm and less than or equal to 1 mm.

In an exemplary embodiment, the support member of the flexible display module includes at least one support group, and the at least one support group is sequentially disposed along the second direction; the support group comprises a plurality of support bars arranged at intervals along the second direction and a reinforcing rib structure arranged between adjacent support bars.

In an exemplary embodiment, the support group has a center line in the first direction, and the reinforcing rib structures in the support group are arranged in an axisymmetric manner along the center line.

In an exemplary embodiment, in the first direction, a plurality of identical reinforcing rib structures are disposed between adjacent support bars in the support group; in the second direction, the structures of the reinforcing ribs between different supporting strips in the supporting group are the same or different.

In an exemplary embodiment, the stiffener structure within the support group includes any one or more of a first stiffener, a second stiffener, a third stiffener, or a fourth stiffener.

In an exemplary embodiment, a first opening is formed between the adjacent support bars and between the adjacent first reinforcing ribs and the support bars, and the first opening is hexagonal in shape.

In an exemplary embodiment, the second reinforcing rib includes a second opening, and the second opening is triangular in shape; and a third opening is formed between the adjacent supporting strips and between the adjacent second reinforcing ribs and the supporting strips, and the shape of the third opening is an inverted trapezoid.

In an exemplary embodiment, the third reinforcing rib includes first and second sub-reinforcing ribs alternately arranged at intervals, the first sub-reinforcing rib being arranged as a line segment inclined to the first direction by a first angle along the second direction, the second sub-reinforcing rib being arranged as a line segment inclined to the second direction by a second angle along the second direction opposite to the first direction, the first and second angles being set to be greater than 0 degrees and less than 90 degrees; and a fourth opening is formed between the adjacent supporting bars and between the adjacent first sub-reinforcing ribs, the adjacent second sub-reinforcing ribs and the adjacent supporting bars, and the fourth opening is trapezoid or inverted trapezoid in shape.

In an exemplary embodiment, a fifth opening is formed between the adjacent support bars and the adjacent fourth reinforcing ribs, and an edge of the fifth opening, which is close to the fourth reinforcing ribs, is arc-shaped or semicircular.

The embodiment of the invention also provides a flexible display module, which comprises a display panel and the support piece of the flexible display module.

The embodiment of the invention also provides a display device which comprises the flexible display module.

The support piece of flexible display module assembly that this embodiment provided through set up the strengthening rib structure between adjacent support bar, can promote support piece's anti bending and antitorque commentaries on classics ability, improves support piece's shock resistance, and helps reducing support piece's assembly tolerance, promotes support piece's wholeness. The problem that the support piece of the existing flexible display panel is poor in bending resistance is solved, and user experience is improved.

Other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain, without limitation, the disclosed embodiments.

FIG. 1 is a schematic view of a support member of a flexible display module according to some techniques;

fig. 2 is a schematic top view of a support member of a flexible display module according to an embodiment of the disclosure;

FIG. 3 is a schematic top view of a first support set according to an embodiment of the disclosure;

fig. 4 is a partial enlarged view of a dotted line area a in fig. 3;

fig. 5 is a partial enlarged view of a dotted line area B in fig. 3;

FIG. 6 is a side view of the first support group of FIG. 3 along a first direction X;

FIG. 7 is a schematic top view of a second support set according to an embodiment of the disclosure;

FIG. 8 is a schematic top view of a third support set according to an embodiment of the disclosure;

fig. 9 is a partial enlarged view of a dotted line area C in fig. 8;

FIG. 10 is a schematic top view of a first support in an embodiment of the present disclosure;

fig. 11 is a schematic top view of a second support in an embodiment of the disclosure.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that embodiments may be implemented in a number of different forms. One of ordinary skill in the art can readily appreciate the fact that the manner and content may be varied into a wide variety of forms without departing from the spirit and scope of the present disclosure. Accordingly, the present disclosure should not be construed as being limited to the following description of the embodiments. Embodiments of the present disclosure and features of embodiments may be combined with each other arbitrarily without conflict.

In the drawings, the size of each constituent element, the thickness of a layer, or a region may be exaggerated for clarity. Accordingly, one aspect of the present disclosure is not necessarily limited to this dimension, and the shapes and sizes of the various components in the drawings do not reflect actual proportions. Further, the drawings schematically show ideal examples, and one mode of the present disclosure is not limited to the shapes or numerical values shown in the drawings, and the like.

The ordinal numbers of "first", "second", "third", etc. in the present specification are provided to avoid mixing of constituent elements, and are not intended to be limited in number.

In the present specification, for convenience, words such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate an azimuth or a positional relationship, are used to describe positional relationships of constituent elements with reference to the drawings, only for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus are not to be construed as limiting the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction in which the respective constituent elements are described. Therefore, the present invention is not limited to the words described in the specification, and may be appropriately replaced according to circumstances.

In this specification, the terms "mounted," "connected," and "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, it may be a fixed connection, a removable connection, or an integral connection; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intermediate members, or may be in communication with the interior of two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.

In this specification, "electrically connected" includes a case where constituent elements are connected together by an element having some electric action. The "element having a certain electric action" is not particularly limited as long as it can transmit an electric signal between the connected constituent elements. Examples of the "element having some electric action" include not only an electrode and a wiring but also a switching element such as a transistor, a resistor, an inductor, a capacitor, other elements having various functions, and the like.

In the present specification, "parallel" means a state in which two straight lines form an angle of-10 ° or more and 10 ° or less, and therefore, a state in which the angle is-5 ° or more and 5 ° or less is also included. The term "perpendicular" refers to a state in which the angle formed by two straight lines is 80 ° or more and 100 ° or less, and thus includes a state in which the angle is 85 ° or more and 95 ° or less.

Fig. 1 is a schematic structural diagram of a support member of a flexible display module according to some technologies. As shown in fig. 1, the support may include a plurality of support bars 10, and the plurality of support bars 10 may be curled and unfolded in the direction of an arrow, thereby achieving curling and unfolding of a screen of the flexible display module. In the supporting piece shown in fig. 1, the supporting strips are mutually independent, are poor in integrity and poor in impact resistance, and after being curled and unfolded for many times, part of the supporting strips are easy to warp and deform, so that the display screen is greatly deformed locally, and the user experience is poor.

The embodiment of the disclosure provides a support for a flexible display module, comprising: a plurality of support bars and a reinforcing rib structure arranged between the adjacent support bars; the extending direction of the supporting strips is a first direction, a first interval is arranged between every two adjacent supporting strips, the reinforcing rib structures are arranged in the first interval, the reinforcing rib structures between different supporting strips are arranged in a staggered mode along a second direction, and the first direction and the second direction are crossed.

In this exemplary embodiment, the height of the stiffener structure is greater than or equal to 10% of the height of the support bar.

In an exemplary embodiment, the support of the flexible display module includes at least one support group, the at least one support group being sequentially disposed along the second direction; the support group comprises a plurality of support bars arranged at intervals along the second direction and a reinforcing rib structure arranged between adjacent support bars.

In an exemplary embodiment, the support group has a center line in the first direction, and the stiffener structures within the support group are disposed axisymmetrically along the center line.

In an exemplary embodiment, a plurality of identical stiffener structures are disposed between adjacent support bars within the support group in the first direction; in the second direction, the structures of the reinforcing ribs between different supporting strips in the supporting group are the same or different.

In an exemplary embodiment, a first opening is formed between the adjacent support bars between the adjacent first reinforcing ribs and the support bars, and the first opening is hexagonal in shape.

In an exemplary embodiment, the third reinforcing bead includes first and second sub-reinforcing beads alternately arranged at intervals, the first sub-reinforcing bead being arranged as a line segment inclined to the first direction by a first angle in the second direction, the second sub-reinforcing bead being arranged as a line segment inclined to the second direction by a second angle in the second direction opposite to the first direction, the first and second angles being arranged to be greater than 0 degrees and less than 90 degrees; and a fourth opening is formed between the adjacent supporting bars and between the adjacent first sub-reinforcing ribs, the adjacent second sub-reinforcing ribs and the adjacent supporting bars, and the fourth opening is trapezoid or inverted trapezoid in shape.

In an exemplary embodiment, a fifth opening is formed between the adjacent fourth reinforcing bars and the support bars, and an edge of the fifth opening, which is adjacent to the fourth reinforcing bars, is arc-shaped or semicircular.

The technical contents of the present disclosure will be described in detail by means of specific examples.

Fig. 2 is a schematic top view of a support member of a flexible display module according to an embodiment of the disclosure. As shown in fig. 2, the support of the flexible display module may include a plurality of support bars 10, and a reinforcing rib structure disposed between the adjacent support bars 10. A plurality of reinforcing rib structures can be arranged between two adjacent supporting strips, the plurality of reinforcing rib structures can be identical, and the reinforcing rib structures arranged between different adjacent supporting strips can be different. As shown in fig. 2, the extending direction of the supporting bars 10 is a first direction X, the plurality of supporting bars 10 may be sequentially arranged along a second direction Y, a first interval is provided between adjacent supporting bars 10, a reinforcing rib structure is arranged in the first interval, and the first direction X and the second direction Y intersect. The plane where the first direction X and the second direction Y are located may be a plane where the screen of the flexible display module is located in the unfolded state, so as to achieve the supporting effect of the supporting member on the screen of the flexible display module. Compared with the support piece without the reinforcing rib structure shown in fig. 1, the support piece of the embodiment of the disclosure can improve the bending resistance and torsion resistance of the support piece by arranging the reinforcing rib structure between adjacent support bars, improve the shock resistance of the support piece, and is beneficial to reducing the assembly tolerance of the support piece and improving the integrity of the support piece.

In other embodiments, a plurality of stiffener structures may be disposed between two adjacent support bars, which may be different. The structures of the reinforcing ribs arranged between different adjacent supporting strips can be the same. The present disclosure is not limited in this regard.

In an exemplary embodiment, the material of the support bar and the reinforcing rib structure may be a metal material, for example, SUS stainless steel, zirconium alloy, or the like, or the material of the support bar and the reinforcing rib structure may be other materials having a certain hardness, for example, carbon fiber, and the support bar and the reinforcing rib structure may be the same material or different materials, which is not limited in the present disclosure. In an exemplary embodiment, the material of the support bar may be SUS stainless steel, the elastic modulus of the support bar may be about 201GPa, the material of the reinforcing rib structure may be zirconium alloy, and the elastic modulus of the reinforcing rib structure may be about 85 GPa.

In exemplary embodiments, on following second direction Y, the strengthening rib structure between the different support bars can be crisscross setting each other, can provide the support that has pertinence to the different positions of the screen of flexible display module assembly, promoted the flexibility of support piece design, can deal with the different support demands of the different positions of screen, promoted the supporting effect of support piece to, can avoid the support bar to produce excessive stress concentration in strengthening rib tie point department, can avoid the support piece to warp, extension support piece's life, and then extension flexible display module assembly's life. The shape and size of the support bars, as well as the number, location and shape of the stiffener structures, can be set as desired, and are not limited in this disclosure.

Fig. 3 is a schematic top view of a first support set according to an embodiment of the disclosure. As shown in fig. 3, the first support group F1 may include a plurality of support bars 10 sequentially arranged along the second direction Y, a first space is provided between adjacent support bars 10, a reinforcing rib structure is provided in the first space between adjacent support bars 10, the first direction X is an extending direction of the support bars 10, and the first direction X and the second direction Y intersect. In an exemplary embodiment, the first support group F1 may include 7 support bars, and the 7 support bars may be respectively: the first, second, third, fourth, fifth, sixth and seventh support bars 101, 102, 103, 104, 105, 106 and 107 may be the same or different at the same first interval between different adjacent support bars. In the second direction Y, the reinforcing rib structures between different support bars may be staggered with each other. As shown in fig. 3, a straight line along which the extending direction of the fourth supporting bar 104 is located may be taken as a first center line Z1 of the first supporting group F1, the reinforcing rib structures between the different supporting bars in the first supporting group F1 may be disposed to be axisymmetric along the first center line Z1, and the supporting bars and the reinforcing rib structures in the first supporting group F1 may be disposed to be axisymmetric along the first center line Z1. The shape and size of each support bar in fig. 3 are set to be the same, the first interval between adjacent support bars is a fixed value, and the first interval between different adjacent support bars is set to be the same, and in practical application, the shape, size, number of support bars, the first interval between adjacent support bars, and the size of the reinforcing rib structure may be set as required, which is not limited by the present disclosure.

As shown in fig. 3, a plurality of identical reinforcing rib structures may be disposed between adjacent support bars, and the reinforcing rib structures disposed between different support bars may be different. Two types of stiffener structures are illustrated in fig. 3, a first stiffener 1 shown in the dashed area a and a second stiffener 2 shown in the dashed area B, respectively. A plurality of first reinforcing bars 1 are respectively disposed in the first spaces between the first, second and third supporting bars 101, 102 and 103 and in the first spaces between the fifth, sixth and seventh supporting bars 105, 106 and 107, the plurality of first reinforcing bars 1 being disposed in axisymmetry along the first center line Z1. A plurality of second reinforcing bars 2 are respectively disposed in the first interval between the third supporting bar 103 and the fourth supporting bar 104 and in the first interval between the fourth supporting bar 104 and the fifth supporting bar 105, and the plurality of second reinforcing bars 2 are disposed in axisymmetry along the first center line Z1.

Fig. 4 is a partial enlarged view of a dotted line area a in fig. 3. As shown in fig. 4, the first reinforcing bars 1 may be in a "funnel" shape in a top view, and as shown in connection with fig. 3, between adjacent support bars, there may be first openings K1 between adjacent first reinforcing bars 1 and support bars, and the shape of the first openings K1 may be hexagonal. In the first direction X, the minimum length of the first reinforcing bar 1 is d, in the second direction Y, the thickness of the first reinforcing bar 1 is h, the thickness h of the first reinforcing bar 1 may be a distance between opposite surfaces of the support bars sandwiching the first reinforcing bar 1, the thickness h of the first reinforcing bar 1 may be set to be equal to a first interval between the support bars sandwiching the first reinforcing bar 1, for example, the thickness h of the first reinforcing bar 1 may be a distance between opposite surfaces of the first support bar 101 and the second support bar 102, and the thickness h of the first reinforcing bar 1 may be set to be equal to a first interval between the first support bar 101 and the second support bar 102. In an exemplary embodiment, the minimum length d of the first reinforcing bead 1 may have a value of greater than or equal to 0.1 mm and less than or equal to 1 mm, and the thickness h of the first reinforcing bead 1 may have a value of greater than or equal to 0.1 mm and less than or equal to 1 mm, and the minimum length d of the first reinforcing bead 1 and the thickness h of the first reinforcing bead 1 may be sized as needed, which is not limited in the present disclosure.

Fig. 5 is a partial enlarged view of a dotted line area B in fig. 3. As shown in fig. 5, the second reinforcing rib 2 may have a "]" shape in a top view, the second reinforcing rib 2 may include a triangular second opening K2, and as shown in connection with fig. 3, a third opening K3 may be formed between adjacent second reinforcing ribs 2 and support bars between adjacent support bars, and the shape of the third opening K3 may be an inverted trapezoid. In the first direction X, the minimum length of the second reinforcing bar 2 is d, in the second direction Y, the thickness of the second reinforcing bar 2 is h, the thickness h of the second reinforcing bar 2 may be a distance between opposite surfaces of the support bars sandwiching the second reinforcing bar 2, the thickness h of the second reinforcing bar 2 may be set to be equal to a first interval between the support bars sandwiching the second reinforcing bar 2, for example, the thickness h of the second reinforcing bar 2 may be a distance between opposite surfaces of the third support bar 103 and the fourth support bar 104, and the thickness h of the second reinforcing bar 2 may be set to be equal to a first interval between the third support bar 103 and the fourth support bar 104. As can be seen from fig. 4 and 5, the thickness h of the first reinforcing bead 1 and the second reinforcing bead 2 may be the same, the minimum length d of the first reinforcing bead 1 and the second reinforcing bead 2 in the first direction X may also be the same, and the supporting areas of the first reinforcing bead 1 and the second reinforcing bead 2 are different in the top view, and the supporting area of the first reinforcing bead 1 is larger, so that the supporting performance of the first reinforcing bead 1 is stronger than that of the second reinforcing bead 2. Through setting up different strengthening ribs, can realize providing different holding power to the different positions of the screen of flexible display module assembly, can adapt to the demand of the different support performance in the different positions of screen. The size of the first reinforcing rib 1, the size of the second reinforcing rib 2 and the shape and size of the second opening K2 included in the second reinforcing rib 2 can be set as required, and reinforcing rib structures with different supporting properties can be obtained.

Fig. 6 is a side view of the first support group of fig. 3 along the first direction X. As shown in fig. 6, the heights of the stiffener structures between the different support bars may be all set to L2, the heights of the support bars may be all set to L1, the heights L2 of the stiffener structures may be set to be smaller than the heights L1 of the support bars, the heights of the stiffener structures may be the distance between the surface of the stiffener structure, which is close to the screen side of the flexible display module, and the surface, which is far away from the screen side of the flexible display module, of the stiffener structure, and the heights of the support bars may be the distance between the surface of the support bars, which is close to the screen side of the flexible display module, and the surface, which is far away from the screen side of the flexible display module. Through setting up the high height that is less than the support bar of strengthening rib, can guarantee that support piece is buckling or the in-process of smooth book, adjacent support bar can not bump or extruded condition, helps promoting support piece's life, and then promotes flexible display module assembly's life. In an exemplary embodiment, the height of the reinforcing rib structure may be set to 10% to 100% of the height of the supporting bar, for example, the height of the supporting bar may be set to be greater than or equal to 0.05 mm and less than or equal to 1 mm, and the height of the reinforcing rib structure may be set to be greater than or equal to 0.05 mm and less than or equal to 1 mm. The heights of the support bars and the reinforcing rib structures can be set as required, and the present disclosure is not limited thereto.

Fig. 7 is a schematic top view of a second support set according to an embodiment of the disclosure. As shown in fig. 7, the structure of the second support group F2 is similar to that of the first support group F1, except that the second reinforcing ribs 2 of the first support group F1 are replaced with the third reinforcing ribs 3 in the second support group F2, and the similarities between the second support group F2 and the first support group F1 are not repeated here. As shown in fig. 7, a plurality of third reinforcing bars 3 are respectively disposed in the first interval between the third supporting bar 103 and the fourth supporting bar 104 and in the first interval between the fourth supporting bar 104 and the fifth supporting bar 105, and the plurality of third reinforcing bars 3 may be axisymmetrically disposed along the second center line Z2 of the second supporting group F2. The third reinforcing bead 3 may include a first sub-reinforcing bead 31 and a second sub-reinforcing bead 32 which are disposed at intervals, the first sub-reinforcing bead 31 may be disposed as a line segment inclined by a first angle to the first direction X along the second direction Y, the first angle may be greater than 0 degrees and less than 90 degrees, the second sub-reinforcing bead 32 may be disposed as a line segment inclined by a second angle to the opposite direction of the first direction X along the second direction Y, the second angle may be greater than 0 degrees and less than 90 degrees, the first angle may be equal to the second angle, a straight line where the first sub-reinforcing bead 31 is located and a straight line where the second sub-reinforcing bead 32 is located intersect, and the first sub-reinforcing bead 31 and the second sub-reinforcing bead 32 are alternately arranged. Between the adjacent support bars, fourth openings K4 are provided between the adjacent first and second sub-reinforcing ribs 31 and 32 and the support bars, and the fourth openings K4 may be in a trapezoid or an inverted trapezoid, as shown in fig. 7, and the plurality of fourth openings K4 may be in a trapezoid and an inverted trapezoid alternately arranged along the first direction X. Compared with the first reinforcing rib 1 or the second reinforcing rib 2, the third reinforcing rib 3 is smaller in size and smaller in supporting force, but the third reinforcing ribs 3 can be distributed more dispersedly and can provide more uniform supporting performance. As shown in fig. 7, between the adjacent support bars, the plurality of first sub-beads 31 may be disposed parallel to each other, the plurality of second sub-beads 32 may be disposed parallel to each other, and in other embodiments, the size and inclination angle of the first sub-beads 31, the size and inclination angle of the second sub-beads 32 with respect to the second direction Y, and the distance between the first sub-beads 31 and the second sub-beads 32 may be set as desired, and the first sub-beads 31 and the second sub-beads 32 may be disposed in the shape of an arc, a wave, or the like, so that the third beads 3 having different support properties may be obtained. The positions and the distribution of the first reinforcing ribs 1, the second reinforcing ribs 2 and the third reinforcing ribs 3 can be flexibly set, and the support pieces with different support capacity distributions can be obtained.

Fig. 8 is a schematic top view of a third support set according to an embodiment of the disclosure. As shown in fig. 8, the third support group F3 has a structure similar to that of the first support group F1, except that the first reinforcing bars 1 located between the second support bar 102 and the third support bar 103 and the first reinforcing bars 1 located between the fifth support bar 105 and the sixth support bar 106 in the first support group F1 are replaced with the fourth reinforcing bars 4 in the third support group F3, and the similarities between the third support group F3 and the first support group F1 will not be repeated here. As shown in fig. 8, the fourth reinforcing bars 4 between the second and third supporting bars 102 and 103 and the fourth reinforcing bars 4 between the fifth and sixth supporting bars 105 and 106 may be axisymmetric along the third center line Z3 of the third supporting group F3. Fig. 9 is a partial enlarged view of a dotted line area C in fig. 8. As shown in fig. 8 and 9, in a top view, the fourth reinforcing rib 4 is similar to the first reinforcing rib 1 in shape, but the surface of the first reinforcing rib 1 clamped between adjacent supporting bars is two intersecting planes, the surface of the fourth reinforcing rib 4 clamped between adjacent supporting bars is a concave curved surface, between adjacent supporting bars, a fifth opening K5 may be formed between the adjacent fourth reinforcing rib 4 and the supporting bars, and the edge of the fifth opening K5 adjacent to the fourth reinforcing rib 4 may be arc-shaped or semicircular. The minimum length of the fourth reinforcing bead 4 in the first direction X may be d, the thickness of the fourth reinforcing bead 4 in the second direction Y may be h, the thicknesses h of the fourth reinforcing bead 4, the first reinforcing bead 1 and the second reinforcing bead 2 may be the same, the minimum lengths d of the fourth reinforcing bead 4, the first reinforcing bead 1 and the second reinforcing bead 2 in the first direction X may be the same, and the supporting areas of the fourth reinforcing bead 4, the first reinforcing bead 1 and the second reinforcing bead 2 may be different in a top view, in comparison, the supporting performance of the fourth reinforcing bead 4 may be stronger than the second reinforcing bead 2 but smaller than the supporting performance of the first reinforcing bead 1.

Fig. 10 is a schematic top view of a first support in an embodiment of the disclosure. In an exemplary embodiment, the first support may include at least one support group, and in case the first support includes a plurality of support groups, the plurality of support groups may be the same support group. As shown in fig. 10, the first support may include three third support groups F3 sequentially disposed in the second direction Y. In other embodiments, the first support may include at least two identical support groups, for example, the first support may include a plurality of first support groups F1 or a plurality of second support groups F2 sequentially disposed along the second direction Y, and the present disclosure is not limited to the number of support groups included in the first support, and the specific structure of each support group. As shown in fig. 10, no rib structures may be provided between adjacent support groups, and in other embodiments, a suitable shape, size, and number of rib structures may be provided between adjacent support groups, as desired. The plurality of supporting groups included by the first supporting piece are the same, so that the first supporting piece is simple in structure and convenient to prepare.

Fig. 11 is a schematic top view of a second support in an embodiment of the disclosure. In an exemplary embodiment, the second support may include at least one support group, and in case the second support includes a plurality of support groups, different support groups may be included in the plurality of support groups. As shown in fig. 11, the second support may include a first support group F1, a second support group F2, and a first support group F1 sequentially disposed in the second direction Y. In other embodiments, the second support may include at least two support groups, for example, the second support may include any number of first support groups F1, second support groups F2, and third support groups F3 sequentially arranged in the second direction Y in any order, and the number of support groups included in the second support and the specific structure of each support group are not limited in this disclosure. As shown in fig. 11, no rib structures may be provided between adjacent support groups, and in other embodiments, a suitable shape, size, and number of rib structures may be provided between adjacent support groups, as desired. Through setting up second support piece and including a plurality of support group, a plurality of support group can include the support group of inequality, makes the different positions of second support piece can provide different supporting properties, is convenient for deal with the supporting properties demand in the different positions of the screen of flexible display module assembly.

In fig. 10 and 11, each support member includes 21 support bars, and each support group includes 7 support bars, for example, however, the number of support bars included in the support member and the number of support bars included in the support group may be set as needed, which is not limited in this disclosure. In the embodiment of the present disclosure, the first support group F1, the second support group F2, and the third support group F3 are all exemplary examples, and in practical applications, the structures of the support groups may be set as required.

The support piece of the flexible display module provided by the embodiment of the disclosure can be used for a foldable display module or a crimpable display module. The foldable display module is provided with a bending area, the bending area is bent when the foldable display module is in a folded state, and the foldable display module is flattened when the foldable display module is in an unfolded state. Taking fig. 11 as an example for illustration, the second supporting group F2 may be disposed in a bending area of the foldable display module, and the first supporting groups F1 located at two sides of the second supporting group F2 are used to support the rest of the screen positions of the foldable display module, where the second supporting group F2 may bend and expand along the second center line Z2 in the second direction Y, or the second supporting group F2 may bend and expand along any one supporting bar in the second direction Y, so as to implement switching between the folded state and the expanded state of the foldable display module. When the invention is applied to a foldable display module, other supporting members with common structures can be adopted in the non-bending area of the foldable display module, and the invention is not limited thereto. The rollable display module has a rolled state and an unfolded state, and fig. 11 is still taken as an example for illustration, and when the rollable display module is applied to the rollable display module, the entire second support member can be rolled and unfolded along the second direction Y, so that the rollable display module can be switched between the rolled state and the unfolded state. The support piece of the flexible display module provided by the embodiment of the disclosure can support the screen of the foldable display module to hover at any angle, can support the screen of the rollable display module to be unfolded to any length, and can be used for other forms of flexible display modules, and the description is omitted here.

The embodiment of the disclosure also provides a flexible display module, which comprises a display panel and the support piece of the flexible display module.

The support of the flexible display module may provide support for the screen of the display panel. As shown in fig. 6, the plane in which the first direction X and the second direction Y are located may be a plane in which the screen of the display panel is located in the unfolded state, and in the case where the heights of the support bars and the reinforcing rib structures are set to be different, the support member has an uneven first side surface and a flat second side surface in the unfolded direction of the screen of the display panel. When the support member of the flexible display module is used for supporting the screen of the display panel, the second side surface of the support member can face the screen of the display panel, so that the support member is ensured to have enough bending resistance and stable support can be provided for the screen of the display panel.

In other embodiments, the first side surface of the support member may be oriented towards the screen of the display panel, and the surface of the stiffener structure on the first side may not contact the screen of the display panel, so that the bending resistance and the torsion resistance of the support member can be ensured during bending or rolling. Alternatively, the first side surface of the stiffener structure may be disposed out of alignment with the first side surface of the support bar, such that the first side surface and the second side surface of the support member are both rugged surfaces, and the first side surface or the second side surface of the support member may be disposed toward the screen of the display panel as desired, which is not limited by the present disclosure.

Based on the inventive concept of the foregoing embodiments, the embodiments of the present disclosure further provide a display device including the flexible display module employing the foregoing embodiments. The display device may be: any product or component with 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.

Although the embodiments of the present invention are described above, the embodiments are only used for facilitating understanding of the present invention, and are not intended to limit the present invention. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is to be determined by the appended claims.

Claims

1. A support for a flexible display module, comprising: a plurality of support bars and a reinforcing rib structure arranged between the adjacent support bars; the extending direction of the supporting strips is a first direction, a first interval is arranged between every two adjacent supporting strips, the reinforcing rib structures are arranged in the first interval, the reinforcing rib structures among different supporting strips are mutually staggered along a second direction, and the first direction and the second direction are crossed;

the support piece of the flexible display module comprises at least one support group, and the at least one support group is sequentially arranged along the second direction; the support group comprises a plurality of support bars arranged at intervals along the second direction and a reinforcing rib structure arranged between adjacent support bars; the support group is provided with a central line in the first direction, and the reinforcing rib structures in the support group are arranged in axisymmetry along the central line;

in the first direction, a plurality of same reinforcing rib structures are arranged between adjacent supporting strips in the supporting group; in the second direction, the structures of the reinforcing ribs among different supporting strips in the supporting group are the same or different; the reinforcing rib structure in the supporting group comprises any one or more of a first reinforcing rib, a second reinforcing rib, a third reinforcing rib or a fourth reinforcing rib.

2. The support for a flexible display module according to claim 1, wherein the height of the stiffener structure is less than or equal to the height of the support bar; the height of the reinforcing rib structure is the distance between the surface of the reinforcing rib structure, which is close to the screen side of the flexible display module, and the surface, which is far away from the screen side of the flexible display module, of the reinforcing rib structure, and the height of the supporting bar is the distance between the surface of the supporting bar, which is close to the screen side of the flexible display module, and the surface, which is far away from the screen side of the flexible display module.

3. The flexible display module support of claim 2, wherein the height of the stiffener structure is greater than or equal to 10% of the height of the support bar.

4. The support of claim 2, wherein the height of the support bar is set to be greater than or equal to 0.05 mm and less than or equal to 1 mm; the height of the reinforcing rib structure is set to be greater than or equal to 0.05 mm and less than or equal to 1 mm.

5. The flexible display module support of claim 1, wherein between the adjacent support bars, there is a first opening between the adjacent first stiffener and the support bar, the first opening having a hexagonal shape.

6. The support of claim 1, wherein the second stiffener comprises a second opening, the second opening having a triangular shape; and a third opening is formed between the adjacent supporting strips and between the adjacent second reinforcing ribs and the supporting strips, and the shape of the third opening is an inverted trapezoid.

7. The support member of claim 1, wherein the third stiffener includes first and second sub-stiffeners alternately arranged at intervals, the first sub-stiffener being arranged as a line segment inclined to the first direction by a first angle in the second direction, the second sub-stiffener being arranged as a line segment inclined to the first direction by a second angle in the second direction opposite to the first direction, the first and second angles being set to be greater than 0 degrees and less than 90 degrees;

and a fourth opening is formed between the adjacent supporting bars and between the adjacent first sub-reinforcing ribs, the adjacent second sub-reinforcing ribs and the adjacent supporting bars, and the fourth opening is trapezoid or inverted trapezoid in shape.

8. The flexible display module support of claim 1, wherein a fifth opening is provided between the adjacent support bars and between the adjacent fourth stiffener and the support bar, and an edge of the fifth opening adjacent to the fourth stiffener is arc-shaped or semicircular.

9. A flexible display module comprising a display panel and a support for the flexible display module according to any one of claims 1 to 8.

10. A display device comprising the flexible display module of claim 9.