CN219392885U - Display panel and display device - Google Patents

Abstract

The application relates to a display panel and a display device. The display panel includes: a flexible display substrate; and the support piece is arranged on one side of the flexible display substrate along the thickness direction and comprises a rigid support part and a flexible support part arranged on the outer edge of the rigid support part, the outer edge of the projection of the rigid support part on the flexible display substrate is positioned on the inner side of the outer edge of the flexible display substrate, and at least part of the structure of the flexible support part extends outside the outer edge of the flexible display substrate. The display panel can be light.

Description

Display panel and display device

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display panel and a display device.

Background

With the development and application of flexible display technology, flexible folding screens gradually become a trend, and are increasingly applied to terminal devices. To maintain the flatness and rigidity of the flexible folding screen, support structures are typically provided under the screen. However, with further development of display technology, the problem of weight of the supporting structure is slowly highlighted, which makes the weight of the display panel heavier, and cannot meet the requirement of the user for light weight of the display panel.

Disclosure of Invention

Accordingly, it is necessary to provide a lightweight display panel and a display device.

According to an aspect of the present application, there is provided a display panel including:

a flexible display substrate; and

the support piece is arranged on one side of the flexible display substrate in the thickness direction and comprises a rigid support part and a flexible support part arranged at the outer edge of the rigid support part, the projection of the flexible display substrate on the support piece covers the rigid support part, and at least part of the structure of the flexible support part extends outside the outer edge of the flexible display substrate.

In the above scheme, the support piece comprises the rigid support part and the flexible support part arranged at the outer edge of the rigid support part, the projection of the flexible display substrate on the support piece covers the rigid support part, and the rigid support part can better support the flexible display substrate. In addition, at least part of the structure of the flexible supporting part extends outside the outer edge of the flexible display substrate, and during the manufacturing process of the display panel, part of the area of the flexible supporting part extending outside the outer edge of the flexible display substrate can be used as a clamping reference for clamping by an external clamp and the like. And, since the portion of the flexible supporting portion extending to the outside of the flexible display substrate is a flexible structure, it can be removed more easily by a dicing process than a rigid structure.

On the other hand, only through setting up the support piece at the flexible display substrate back, just can realize the support to flexible display substrate, realize the clamping in the manufacturing process to can be in follow-up support easily get rid of the partial structure that is used for the centre gripping, this compares with the structure that the flexible support rete and metal supporting layer must be laminated in proper order at the back of flexible display substrate in the related art, has omitted flexible support rete, not only the thickness reduction of whole display panel, still helps realizing the lightweight of display panel.

In some embodiments, the flexible support is configured as a ring that is continuously disposed around an outer edge of the rigid support, and the peripheral outer edge of the flexible support extends entirely outside the outer edge of the flexible display substrate.

Therefore, the clamp can clamp the preset part around the flexible supporting part according to the requirement, the relative positions of the clamp and the flexible display substrate are not limited, and the flexibility of clamping operation in the clamping process is improved.

Preferably, the rigid support portion, and the portion of the structure of the flexible support portion that is located inside the outer edge of the flexible display substrate, are attached to the flexible display substrate.

Thus, the rigid support part and the flexible support part can support the flexible display substrate well.

In some embodiments, the flexible display substrate includes a display portion, a bonding portion, and a bend portion between the display portion and the bonding portion; the rigid support portion is disposed on one side of the display portion in a thickness direction of the flexible display substrate.

Thus, the rigid support portion can well support the display portion, and bending of the bending portion and bonding of the bonding portion are not hindered.

In some embodiments, the rigid support and the flexible support are the same size in the thickness direction of the flexible display substrate.

In this way, when the support member is disposed on a side of the flexible display substrate, for example, on a side facing away from the light-emitting surface, both the rigid support portion and the flexible support portion can be well in contact with the flexible display substrate.

Preferably, the dimensions of the rigid support portion and the flexible support portion in the thickness direction of the flexible display substrate are each 70 μm to 150 μm.

A size of more than 150 μm is disadvantageous for weight reduction, and a size of less than 70 μm does not provide good support, and when the dimensions of the rigid support portion and the flexible support portion in the thickness direction of the flexible display substrate are within this range, weight reduction and support performance can be achieved at the same time.

In some embodiments, the material of the flexible support includes a cured glue.

Therefore, the flexible supporting part can be formed into a soft supporting structure, on one hand, the flexible display substrate can be well supported, and the part exceeding the flexible display substrate is convenient for cutting. On the other hand, it is also convenient to provide the flexible support portion at the outer edge of the rigid support portion.

Preferably, the flexible support has an elastic modulus of 2GPa to 4GPa.

Thus, the support piece is convenient to cut to a preset shape after manufacturing.

In some embodiments, the flexible display substrate includes a display portion including a bendable region and non-bendable regions on opposite sides of the bendable region;

the rigid support portion includes:

two supports spaced apart from each other, the two supports configured to support the non-bending region; and

a connector connected between the two supports, the connector being configured to support the bendable region;

the connector comprises a weight-reducing part, and the density of the weight-reducing part is smaller than that of the support body.

In the above scheme, the supporting body corresponds to the non-bending area, the connecting body corresponds to the bending area, when the flexible display substrate is folded, the bending area and the connecting body supporting the bending area are bent together, and when the flexible display substrate is unfolded, the bending area and the connecting body supporting the bending area are unfolded together, so that the folding and unfolding of the flexible display substrate are realized. By providing at least part of the structure of the connecting body as a weight reduction part with a smaller density, the overall weight of the rigid support part is reduced just because the density of the weight reduction part is smaller than that of the support body, which contributes to the realization of the light weight of the display panel.

Preferably, the material of the weight-reducing part comprises cured glue or resin, or the elastic modulus of the weight-reducing part is 1.5GPa-3GPa.

Therefore, the connecting body has better flexibility when the weight of the connecting body is reduced, and meanwhile, the bending crease can be improved.

In some embodiments, the connector is formed of a weight-reducing portion connected to the two support bodies on opposite sides thereof.

Thus, the whole connector is composed of the weight-reducing parts with smaller density, and the weight of the supporting piece can be reduced to a large extent.

Preferably, the support body is provided with a first matching structure, the weight-reducing part is provided with a second matching structure corresponding to the first matching structure, and the first matching structure and the second matching structure are embedded with each other so as to connect the weight-reducing part with the support body; therefore, the connection between the support body and the connecting body is more reliable.

Preferably, the number of the first matching structures is a plurality, the first matching structures are arranged at intervals in the first direction, the first matching structures are hollow, through holes penetrating in the thickness direction of the flexible display substrate are formed in the first matching structures, and the second matching structures are filled in the first matching structures and the through holes;

the first direction is perpendicular to the thickness direction of the flexible display substrate and the opposite direction of the two supports.

Therefore, the support body and the connecting body are combined more tightly, and breakage is prevented when the support body and the connecting body are bent.

In some embodiments, the connector further includes a base portion having a density greater than the weight-reduction portion, the base portion being laminated on the weight-reduction portion in a thickness direction of the flexible display substrate; the base body part and the weight-reducing part are connected to the opposite sides of the two supporting bodies.

As described above, the connecting body includes the weight reducing portion and the base portion laminated on the weight reducing portion, and the structural strength of the connecting body is increased as compared with a structure in which the weight reducing portion is simply provided.

Preferably, the base body part is provided with a hollowed-out area, and a part of the structure of the weight-reducing part is filled into the hollowed-out area.

Therefore, the combination property of the base body part and the weight-reducing part can be ensured, and the bending performance is better when bending occurs.

Preferably, the hollowed-out area is configured as a strip-like structure extending along opposite directions of the two support bodies.

Therefore, when the two supporting bodies are relatively bent and close to each other, the acting force applied by each supporting body to the connecting body is along the opposite direction of the two supporting bodies, and the hollow area extends along the opposite direction of the two supporting bodies, so that the bending capacity of the connecting part can be improved.

In some embodiments, the ratio a of the dimension of the base portion in the thickness direction of the flexible display substrate to the dimension of the connecting body in the thickness direction of the flexible display substrate satisfies:

1/3≤a≤1/2。

therefore, the bending area of the display part can be well supported, and the bending capacity can be improved.

According to another aspect of the present application, there is also provided a display device including a display panel as described above.

Drawings

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

FIG. 2 is a top view of a support provided in an embodiment of the present application;

FIG. 3 is a cross-sectional view of a support provided in an embodiment of the present application;

FIG. 4 is a cross-sectional view of another construction of a support provided in an embodiment of the present application;

FIG. 5 is a cross-sectional view of the support of FIG. 4;

FIG. 6 is a cross-sectional view of another construction of the support of FIG. 4;

FIG. 7 is a cross-sectional view of yet another construction of the support of FIG. 4;

FIG. 8 is a cross-sectional view of yet another configuration of a support provided in an embodiment of the present application;

FIG. 9 is a cross-sectional view of the support of FIG. 8;

FIG. 10 is a cross-sectional view of another construction of the support of FIG. 8;

FIG. 11 is a cross-sectional view of yet another construction of the support of FIG. 8;

FIG. 12 is a cross-sectional view of yet another configuration of a support provided in an embodiment of the present application;

fig. 13 is a cross-sectional view of the support of fig. 12.

Reference numerals illustrate:

100. a display panel; 10. a flexible display substrate; 11. a display unit; 111. a bendable region; 112. a non-inflection region; 12. bonding part; 13. a bending part; 20. a support; 30. a rigid support portion; 31. a support body; 32. a connecting body; 321. a weight-reducing portion; 3211. a first mating structure; 32111. a through structure; 3212. a third mating structure; 322. a base portion; 3221. a second mating structure; 40. a flexible support portion;

G. a hollowed-out area; I. disconnecting the area.

Detailed Description

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In describing positional relationships, when an element such as a layer, film or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present unless otherwise indicated. Further, when a layer is referred to as being "under" another layer, it can be directly under, or one or more light emitting units can be present. It will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more light emitting units can also be present.

Where the terms "comprising," "having," and "including" are used herein, another component may also be added unless explicitly defined as such, e.g., "consisting of … …," etc. Unless mentioned to the contrary, singular terms may include plural and are not to be construed as being one in number.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application.

It will be further understood that when interpreting an element, although not explicitly described, the element is intended to include the range of errors which should be within the acceptable limits of deviation from the particular values identified by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, and is not limited herein.

Further, the drawings are not 1:1, and the relative dimensions of the various elements are drawn by way of example only in the drawings and are not necessarily drawn to true scale.

With the rapid development of OLED (Organic Light-Emitting Diode) display panel technology, it is widely used because of its flexible and flexible properties, and compared with the conventional TFT-LCD technology, the OLED has a great advantage in that it can be made into a folded, curled or stretchable product.

In the OLED display panel, a support film layer and a metal support layer stacked on each other are generally provided on the back surface of the display panel as a support structure. The supporting film layer supports the partial area of the display panel on one hand, and on the other hand, the outline of the supporting film layer is further set to be larger than the outer edge of the display panel, so that the supporting film layer is convenient to clamp the display panel in cooperation with the jig in the manufacturing process of the display panel, and the supporting structure of the structure is heavier in weight and is unfavorable for the light weight of the display panel.

Accordingly, in order to solve the above-described problems, it is necessary to provide a light-weight display panel and a display device, in which the support member includes a rigid support portion and a flexible support portion provided at the outer edge of the rigid support portion, and the support member has a single-layer structure, and the flexible support film layer is omitted, so that the thickness of the entire display panel is reduced, and the light-weight display panel is facilitated.

Embodiments of a first aspect of the present application provide a display panel.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application, fig. 2 is a top view of a support member in the display panel according to an embodiment of the present application, and fig. 3 is a cross-sectional view of a support member 20 according to an embodiment of the present application.

Referring to fig. 1 and 2, a display panel 100 provided in this embodiment of the present application includes a flexible display substrate 10 and a support member 20, where the support member 20 is disposed on one side of the flexible display substrate 10 along a thickness direction H, the support member 20 includes a rigid support portion 30 and a flexible support portion 40 disposed on an outer edge of the rigid support portion 30, a projection of the flexible display substrate 10 on the support member 20 covers the rigid support portion 30, and at least a part of a structure of the flexible support portion 40 extends outside the outer edge of the flexible display substrate 10.

In the above-described aspect, by making the support 20 include the rigid support portion 30 and the flexible support portion 40 provided at the outer edge of the rigid support portion 30, the projection of the flexible display substrate 10 on the support 20 covers the rigid support portion 30, and the rigid support portion 30 can support the flexible display substrate 10 well. In addition, at least a part of the structure of the flexible supporting portion 40 extends outside the outer edge of the flexible display substrate 10, and during the manufacturing process of the display panel 100, a part of the area of the flexible supporting portion 40 extending outside the outer edge of the flexible display substrate 10 may be used as a clamping reference for clamping by an external clamp or the like. Also, since the portion of the flexible supporting portion 40 extending to the outside of the flexible display substrate 10 is a flexible structure, it can be removed more easily by a dicing process than a rigid structure.

On the other hand, by providing the support 20 on the back surface of the flexible display substrate 10, the flexible display substrate 10 can be supported, the clamping in the manufacturing process can be realized, and the part of the structure for clamping can be easily removed in the subsequent support, which omits the flexible support film layer compared with the structure in which the flexible support film layer and the metal support layer must be laminated in order on the back surface of the flexible display substrate in the related art, not only the thickness of the entire display panel 100 is reduced, but also the weight reduction of the display panel 100 is facilitated.

In the present embodiment, the flexible support portion 40 is configured as a ring member continuously arranged around the outer edge of the rigid support portion 30, and the circumferential outer edge of the flexible support portion 40 extends entirely outside the outer edge of the flexible display substrate 10.

In this way, the clamp can clamp the preset portion around the flexible support portion 40 as required, so that the relative positions of the clamp and the flexible display substrate 10 are not limited, and the flexibility of clamping operation in the clamping process is improved.

As shown in fig. 1 and 2, in the case where the flexible display substrate 10 is substantially square, the flexible support portion 40 is substantially in a square frame structure.

Further, the rigid support portion 30 and a portion of the structure of the flexible support portion 40 located inside the outer edge of the flexible display substrate 10 are attached to the flexible display substrate 10. Thus, the rigid support portion 30 and the flexible support portion 40 can each support the flexible display substrate 10 well.

In this embodiment, as shown in fig. 1 and 3, the flexible display substrate 10 includes a display portion 11, a bonding portion 12, and a bending portion 13 located between the display portion 11 and the bonding portion 12, and the rigid support portion 30 is disposed on a back side of the display portion 11 (i.e., a side of the display portion 11 along a thickness direction H of the flexible display substrate 10). In this way, the rigid support portion 30 can support the display portion 11 well without interfering with the bending of the bending portion 13 and the bonding of the bonding portion 12.

In this embodiment, referring to fig. 1 and 2, the dimensions of the rigid support portion 30 and the flexible support portion 40 in the thickness direction H of the flexible display substrate 10 are the same, so that when the support member 20 is disposed on a side of the flexible display substrate 10, for example, on a side facing away from the light exit surface, both the rigid support portion 30 and the flexible support portion 40 can be well in contact with the flexible display substrate 10.

Further, the dimensions of the rigid support portion 30 and the flexible support portion 40 in the thickness direction H of the flexible display substrate 10 are each 70 μm to 150 μm. A size of more than 150 μm is disadvantageous in terms of weight reduction, and a size of less than 70 μm does not provide good support, and when the dimensions of the rigid support portion 30 and the flexible support portion 40 in the thickness direction H of the flexible display substrate 10 are in the range of 70 μm to 150 μm, weight reduction and support performance can be achieved at the same time.

In the embodiment of the present application, the material of the flexible supporting portion 40 includes a cured adhesive. In this way, the flexible supporting portion 40 can be formed into a soft supporting structure, on the one hand, the flexible display substrate 10 can be well supported, and the portion beyond the flexible display substrate 10 is convenient for cutting. On the other hand, it is also convenient to provide the flexible support portion 40 at the outer edge of the rigid support portion 30. It should be noted that the flexible support 40 may be provided by coating or printing.

Further, the elastic modulus of the flexible support portion 40 is 2GPa to 4GPa. In this way, it is convenient to cut the support 20 to a predetermined shape after the completion of the fabrication.

In this embodiment, with continued reference to fig. 1, as described above, the flexible display substrate 10 includes the display portion 11, and the display portion 11 includes the bendable region 111 and the non-bending regions 112 located at two sides of the bendable region 111. The non-bending region 112 is generally formed in a planar structure, and the bending region 111 may be bent to enable folding and unfolding of the flexible display substrate 10.

In connection with fig. 1 and 3, the rigid support portion 30 includes: two supporting bodies 31 disposed at a distance from each other, and the two supporting bodies 31 are configured to support the non-bending region 112; and a connecting body 32 connected between the two supporting bodies 31, and the connecting body 32 is configured to support the bendable region 111. Wherein, the connecting body 32 comprises a weight-reducing part 321, and the density of the weight-reducing part 321 is less than that of the supporting body 31. In the above-described aspect, the supporting body 31 corresponds to the non-bending region 112, the connecting body 32 corresponds to the bending region 111, the bending region 111 and the connecting body 32 supporting the bending region 111 are bent together when the flexible display substrate 10 is folded, and the bending region 111 and the connecting body 32 supporting the bending region 111 are unfolded together when the flexible display substrate 10 is unfolded, thereby achieving folding and unfolding of the flexible display substrate 10. Since the density of the weight reducing portion 321 is smaller than that of the supporting body 31, the overall weight of the rigid supporting portion 30 is reduced, and the weight of the display panel 100 can be reduced.

In other words, by providing at least part of the structure of the connecting body 32 as the weight reducing portion 321 having a small density, the weight of the rigid support portion 30 can be reduced, and the weight of the display panel 100 can be reduced.

Further, the material of the weight-reducing portion 321 includes a cured glue or a resin. Illustratively, the modulus of elasticity of the weight-reducing portion 321 is 1.5GPa to 3GPa. In this way, the connecting body 32 can be reduced in weight while also having good flexibility, and the bending crease can be improved.

It is understood that the rigid support portion 30 may be adhered to the flexible display substrate 10 by an adhesive, in other words, the weight-reducing bodies of the support body 31 may be tightly and firmly adhered to the flexible display substrate 10 by the adhesive.

In the embodiment of the present application, referring to fig. 3, in addition to the weight-reduction portion 321, the connection body 32 further includes a base portion 322 having a density greater than that of the weight-reduction portion 321, and the base portion 322 is laminated on the weight-reduction portion 321 in the thickness direction of the flexible display substrate 10; the base portion 322 and the weight-reducing portion 321 are each connected to one side of the two supports 31 that face each other. As described above, the connecting body 32 includes the weight reducing portion 321 and the base portion 322 laminated on the weight reducing portion 321, and the structural strength of the connecting body 32 is increased as compared with the structure in which the weight reducing portion 321 is simply provided. In addition, the sum of the thicknesses of the base portion 322 and the weight-reduction portion 321 may be equal to the thickness of the support body 31 to secure the connection strength of the connection body 32 and the support body 31.

In some embodiments, when the material of the support 31 and the base portion 322 is carbon fiber, for example, the carbon fiber material of the support 31 is formed by laminating three layers of prepregs, and the base portion 322 is provided as a single layer of carbon fiber prepregs along the bending direction. Illustratively, the connection body 32 and the support bodies 31 on both sides may be kept flat by filling the arrangement region of the base portion 322 with the weight-reducing portion 321 (e.g., high-modulus cured glue or resin). When the material of the support 31 and the base portion 322 is carbon fiber, the thickness of the support 31 may be 120 μm to 150 μm, and the thickness of the base portion 322 may be 30 μm to 50 μm. When the material of the support 31 is carbon fiber and the material of the base portion 322 is stainless steel, the thickness of the base portion 322 may be 20 μm to 30 μm, the thickness of the support 31 may be 100 μm to 150 μm, and more preferably, the thickness of the support 31 may be 70 μm to 150 μm.

It is to be understood that the installation position of the base portion 322 may be determined according to actual needs, and fig. 3 illustrates a case where the base portion 322 is located at the top in the thickness direction of the rigid support portion 30, and the weight-reducing portion 321 is disposed at the bottom side of the base portion 322. The base portion 322 may be disposed between the top and bottom in the thickness direction of the rigid support portion 30, and in this case, the top and bottom sides of the base portion 322 are each provided with a weight-reducing portion 321. Alternatively, the base portion 322 may be disposed at the bottom in the thickness direction of the rigid support portion 30, and the weight-reducing portion 321 may be disposed on the top side of the base portion 322.

Illustratively, the material of the base portion 322 and the support 31 may include a metal, such as stainless steel, titanium alloy, etc., and further, the material of the support 31 may include a less dense material such as carbon fiber to further reduce the weight of the rigid support 30.

As can be understood from fig. 2 and 3, when the base portion 322 and the supporting body 31 are made of different materials, the base portion 322 and the supporting body 31 may be connected together by pressing, so as to further improve the connection reliability of the base portion 322 and the supporting body 31, a third fitting structure 3212 may be provided on a surface of the base portion 322 facing the supporting body 31, a cavity may be formed in the third fitting structure 3212, a through hole penetrating in the thickness direction H of the flexible display substrate 10 may be formed, and a part of the structure of the connecting body 32 may be filled in the third fitting structure 3212 and the through hole. So that the supporting body 31 and the connecting body 32 are combined more tightly, and breakage is prevented when bending.

Illustratively, the number of the third fitting structures 3212 is plural, and the plurality of third fitting structures 3212 are arranged at intervals in the first direction F, so that the end surfaces of the base portion 322 and the supporting body 31, which are connected to each other, are formed in a zigzag shape, thereby improving connection reliability and preventing breakage during bending. Wherein the first direction F is perpendicular to both the thickness direction H of the flexible display substrate 10 and the opposite direction of the two supports 31.

Fig. 4 is a cross-sectional view of another structure of a support provided in an embodiment of the present application, fig. 5 is a cross-sectional view of the support of fig. 4, fig. 6 is a cross-sectional view of another structure of the support of fig. 4, and fig. 7 is a cross-sectional view of yet another structure of the support of fig. 4.

In other embodiments, in order to further reduce the weight of the rigid support portion 30, a hollowed-out area G may be provided on the base portion 322, and a part of the structure of the weight-reducing portion 321 is filled into the hollowed-out area G, so as to ensure the combination of the base portion 322 and the weight-reducing portion 321, and the bending performance is better when bending occurs. The hollowed-out area G may be formed by etching or the like.

Further, the hollowed-out area G is configured as a long strip-like structure extending along the opposite directions of the two supporting bodies 31. In this way, when the two supporting bodies 31 are bent and approaching each other, the force applied by each supporting body 31 to the connecting body 32 is along the opposite direction of the two supporting bodies 31, and the hollow area G extends along the opposite direction of the two supporting bodies 31, so that the bending capability of the connecting body 32 can be improved.

Similar to the foregoing, the structure of the base portion 322 may be variously configured as desired.

Fig. 5 illustrates a case where the base portion 322 is located at the top of the rigid support portion 30 in the thickness direction H, and a part of the structure of the weight-reducing portion 321 is disposed at the bottom side of the base portion 322, and another part of the structure is filled in the hollowed-out region G. Referring to fig. 6, the base portion 322 may be disposed between the top and bottom of the rigid support portion 30 in the thickness direction (i.e., the thickness direction H of the flexible display substrate), and at this time, a part of the structure of the weight-reducing portion 321 is disposed on the top and bottom sides of the base portion 322, and another part of the structure of the weight-reducing portion 321 is filled in the hollowed-out region G. Alternatively, referring to fig. 7, the base portion 322 may be disposed at the bottom of the rigid support portion 30 in the thickness direction, and at this time, a part of the structure of the weight-reducing portion 321 is disposed at the top of the base portion 322, and another part of the structure is filled in the hollowed-out region G.

Fig. 8 is a cross-sectional view of still another structure of a support provided in an embodiment of the present application, fig. 9 is a cross-sectional view of the support of fig. 8, fig. 10 is a cross-sectional view of another structure of the support of fig. 8, and fig. 11 is a cross-sectional view of yet another structure of the support of fig. 8.

In this embodiment, the structure of the connector 32 is further improved on the basis of the structure of the support 20 shown in fig. 4, and as shown in fig. 8, the base portion 322 may be broken to form a breaking area I, and the distance between the breaking areas I along the opposite directions of the two supports 31 may be 1/3 of the distance between the two supports 31. Further, the portions of the base portion 322 connected to the two supports 31 may be symmetrically arranged, and the broken area I is filled with the weight reducing portion 321.

Fig. 9 illustrates a case where the base portion 322 is located at the top in the thickness direction of the rigid support portion 30, and a part of the structure of the weight-reduction portion 321 is provided at the bottom side of the base portion 322, and another part of the structure is filled in the hollowed-out region G and the breaking region I. Referring to fig. 10, the base portion 322 may be disposed between the top and bottom of the rigid support portion 30 in the thickness direction, and at this time, a part of the structure of the weight-reducing portion 321 is disposed on the top and bottom sides of the base portion 322, and another part of the structure of the weight-reducing portion 321 is filled in the hollowed-out region G and the breaking region I. Alternatively, referring to fig. 11, the base portion 322 may be disposed at the bottom of the rigid support portion 30 in the thickness direction, and at this time, a part of the structure of the weight-reducing portion 321 is disposed at the top of the base portion 322, and the other part of the structure is filled in the hollowed-out region G and the breaking region I.

It is understood that the material of the base body and the supporting body 31 may include at least one of carbon fiber, stainless steel, and titanium alloy.

In the present embodiment, the ratio a of the dimension of the base portion 322 in the thickness direction of the flexible display substrate 10 to the dimension of the connector 32 in the thickness direction of the flexible display substrate 10 satisfies:

a is more than or equal to 1/3 and less than or equal to 1/2, so that the bendable region of the display part can be well supported, and the bending capability can be improved.

Fig. 12 is a cross-sectional view of still another structure of a support provided in an embodiment of the present application, and fig. 13 is a cross-sectional view of the support of fig. 12.

Referring to fig. 12 and 13, the structure of the connector 32 may be further improved on the basis of the support 20 shown in fig. 3, and specifically, the connector 32 is composed of a weight-reducing portion 321, and the weight-reducing portion 321 is connected to the sides of the two supports 31 facing each other. In this way, the entire connecting body 32 is constituted by the weight reducing portion 321 having a small density, and the weight of the support 20 can be reduced to a large extent.

Further, the support body 31 is provided with a first fitting structure 3211, the weight-reducing portion 321 is provided with a second fitting structure 3221 corresponding to the first fitting structure 3211, and the first fitting structure 3211 and the second fitting structure 3221 are embedded with each other, so that the weight-reducing portion 321 is connected with the support body 31, and the connection between the support body 31 and the connector 32 is more reliable.

In particular, as shown in fig. 12, the number of the first fitting structures 3211 is plural, the first fitting structures 3211 are arranged at intervals in the first direction F, the first fitting structures 3211 are hollow, through holes penetrating in the thickness direction of the flexible display substrate 10 are provided, and the second fitting structures 3221 are filled in the through holes and the inside of the first fitting structures 3211. So that the supporting body 31 and the connecting body 32 are combined more tightly, and breakage is prevented when bending. Referring to fig. 12 and 13, the first fitting structure 3211 may be hollow, for example, a through structure 32111 may be formed in the first fitting structure 3211, and the through structure 32111 communicates with a through hole in the first fitting structure 3211 and is perpendicular to each other.

Embodiments of the second aspect of the present application provide a display device including the display panel 100 in any of the embodiments of the first aspect.

According to the display device in the embodiment of the present application, the same advantages as those of the display panel 100 in the embodiment of the first aspect are obtained by the same inventive concept as the display panel 100 in the embodiment of the first aspect, and are not described herein.

The display device in the embodiment of the application is applicable to a mobile terminal, for example. Examples of mobile terminals include tablet Personal Computers (PCs), smart phones, personal Digital Assistants (PDAs), portable multimedia players, gaming machines or wristwatch-type electronic devices, and the like. However, embodiments of the present application are not intended to limit the types of mobile terminals to which the display device is applicable. In some exemplary embodiments, the display device may be used not only in a large-sized electronic device such as a Television (TV) or an external billboard, but also in a medium-sized or small-sized electronic device such as a PC, a notebook computer, a car navigation device, or a camera.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. A display panel, comprising:

a flexible display substrate; and

the support piece is arranged on one side of the flexible display substrate in the thickness direction and comprises a rigid support portion and a flexible support portion arranged on the outer edge of the rigid support portion, the projection of the flexible display substrate on the support piece covers the rigid support portion, and at least part of the structure of the flexible support portion extends to the outer side of the outer edge of the flexible display substrate.

2. The display panel according to claim 1, wherein the flexible supporting portion is configured as a ring continuously arranged around an outer edge of the rigid supporting portion, and a circumferential outer edge of the flexible supporting portion is integrally extended outside the outer edge of the flexible display substrate;

preferably, the rigid support portion and a portion of the structure of the flexible support portion located inside the outer edge of the flexible display substrate are attached to the flexible display substrate.

3. The display panel of claim 1, wherein the flexible display substrate comprises a display portion, a bonding portion, and a bend portion between the display portion and the bonding portion;

the rigid support portion is disposed on one side of the display portion in the thickness direction of the flexible display substrate.

4. The display panel according to claim 1, wherein the rigid support portion and the flexible support portion are the same in size in a thickness direction of the flexible display substrate;

preferably, the dimensions of the rigid support portion and the flexible support portion in the thickness direction of the flexible display substrate are each 70 μm to 150 μm.

5. The display panel according to claim 1, wherein the material of the flexible supporting portion includes a cured adhesive;

preferably, the elastic modulus of the flexible support is 2GPa-4GPa.

6. The display panel of any one of claims 1-5, wherein the flexible display substrate comprises a display portion comprising a bendable region and non-bendable regions on either side of the bendable region;

the rigid support portion includes:

two supports spaced apart from each other, and configured to support the non-bending region; and

a connector connected between the two supports, the connector configured to support the bendable region;

wherein the connector comprises a weight-reducing portion having a density less than that of the support;

preferably, the material of the weight-reducing part comprises cured glue or resin, or the elastic modulus of the weight-reducing part is 1.5GPa-3GPa.

7. The display panel according to claim 6, wherein the connecting body is constituted by the weight-reducing portion connected to one side of the two supporting bodies which are opposite to each other;

preferably, a first matching structure is arranged on the support body, a second matching structure is arranged on the weight-reducing part corresponding to the first matching structure, and the first matching structure and the second matching structure are embedded with each other so as to connect the weight-reducing part and the support body;

preferably, the number of the first matching structures is a plurality, the first matching structures are arranged at intervals in a first direction, the first matching structures are hollow, through holes penetrating in the thickness direction of the flexible display substrate are formed, and the second matching structures are filled in the first matching structures and the through holes;

the first direction is perpendicular to the thickness direction of the flexible display substrate and the opposite direction of the two supports.

8. The display panel according to claim 6, wherein the connecting body further includes a base portion having a density greater than that of the weight-reduction portion, the base portion being laminated on the weight-reduction portion in a thickness direction of the flexible display substrate; the base body part and the weight-reducing part are connected to one sides of the two supporting bodies, which are opposite to each other;

preferably, a hollowed-out area is arranged on the base body part, and part of the structure of the weight-reducing part is filled in the hollowed-out area;

preferably, the hollowed-out area is configured as a strip-shaped structure extending along opposite directions of the two supporting bodies.

9. The display panel according to claim 8, wherein a ratio a of a dimension of the base portion in a thickness direction of the flexible display substrate to a dimension of the connecting body in the thickness direction of the flexible display substrate satisfies:

1/3≤a≤1/2。

10. a display device comprising the display panel according to any one of claims 1-9.