Positioning structure and positioning method thereof, and display device

Abstract

The application provides a positioning structure and a positioning method thereof and a display device, and relates to the technical field of display. The positioning structure can effectively avoid damage to a first to-be-positioned member and a second to-be-positioned member and improve the positioning accuracy. The positioning structure is applied to positioning the first to-be-positioned member and the second to-be-positioned member. The positioning structure comprises a first positioning layer, a second positioning layer and at least one deformable positioning film. The at least one deformable positioning film is arranged on the first positioning layer. The positioning structure is configured to: in a positioning state, the first positioning layer and the second positioning layer are oppositely arranged, and the deformable positioning film is located between the first positioning layer and the second positioning layer; the first positioning layer is arranged on the first to-be-positioned member, and the second positioning layer is arranged on the second to-be-positioned member; the second positioning layer comprises at least one limiting part; and the deformable positioning film is configured to: in the positioning state of the positioning structure, at least part of the deformable positioning film is nested in the limiting part.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a positioning structure and a positioning method thereof, and a display device. BACKGROUND

[0002] With the development of technology, flexible display devices are applied more and more widely. In the process of binding with flexible circuit boards and the like, the flexible layer in the flexible display device needs to be positioned. At present, rigid structures such as pins are commonly used to realize the positioning of the flexible display device.

[0003] However, when the rigid structure is applied to the positioning of the flexible display device, the process tolerance, the positioning deviation and the like are large, resulting in low positioning accuracy, and the rigid structure is also easy to damage the flexible layer and the like in the flexible display device, which is not conducive to the manufacturing of the flexible display device. SUMMARY

[0004] Embodiments of the present application provide a positioning structure and a positioning method thereof, and a display device, which can effectively avoid damage to a first to-be-positioned member and a second to-be-positioned member, and effectively improve the positioning accuracy.

[0005] To achieve the above-mentioned purpose, embodiments of the present application adopt the following technical solutions:

[0006] On the one hand, a positioning structure and a positioning method thereof, and a display device are provided, the positioning structure is applied to position a first to-be-positioned member and a second to-be-positioned member, and the positioning structure comprises: a first positioning layer, a second positioning layer and at least one deformable positioning film, at least one deformable positioning film is arranged on the first positioning layer;

[0007] The positioning structure is configured to: in a positioning state, the first positioning layer and the second positioning layer are arranged oppositely, and the deformable positioning film is located between the first positioning layer and the second positioning layer; the first positioning layer is arranged on the first to-be-positioned member, and the second positioning layer is arranged on the second to-be-positioned member;

[0008] The second positioning layer comprises at least one limiting portion;

[0009] The deformable positioning film is configured to: in the case that the positioning structure is in the positioning state, at least partially nest in the limiting portion.

[0010] Optionally, the limiting portion comprises a positioning hole;

[0011] In the case that the positioning structure is in a pre-positioning state, the orthographic projection of the positioning hole on the first positioning layer is located within the orthographic projection of the deformable positioning film on the first positioning layer;

[0012] The deformable positioning film is configured to fill the positioning hole when the positioning structure is in the positioning state.

[0013] Optionally, the limiting part comprises a deformable limiting film.

[0014] The deformable limiting film is configured to nest all the deformable positioning films when the positioning structure is in the positioning state.

[0015] Optionally, the deformable positioning film and the deformable limiting film are made of the same material.

[0016] Optionally, the deformable positioning film comprises at least one deformable positioning sub-film.

[0017] Optionally, the deformable positioning film comprises a first deformable positioning sub-film and a second deformable positioning sub-film, and the second deformable positioning sub-film is arranged between the first deformable positioning sub-film and the first positioning layer.

[0018] The first deformable positioning sub-film is configured to be at least partially nested in the limiting part when the positioning structure is in the positioning state.

[0019] The second deformable positioning sub-film is configured to be at least partially nested in the first deformable positioning sub-film when the positioning structure is in the positioning state.

[0020] Optionally, the first deformable positioning sub-film has a greater deformability than the second deformable positioning sub-film.

[0021] Optionally, the first positioning layer and the second positioning layer each comprise a flexible layer.

[0022] In another aspect, a display device is provided, comprising the above positioning structure.

[0023] Optionally, the display device further comprises a display substrate and a flexible circuit board.

[0024] The display substrate comprises a non-display area, the non-display area comprises a substrate, and the flexible circuit board is bonded to the substrate.

[0025] The substrate serves as a first object to be positioned, and the flexible circuit board serves as a second object to be positioned.

[0026] The substrate comprises a first positioning layer, and the flexible circuit board comprises a second positioning layer.

[0027] The deformable positioning film of the positioning structure is arranged on a surface of the substrate close to the flexible circuit board, and / or the deformable positioning film of the positioning structure is arranged on a surface of the flexible circuit board close to the substrate.

[0028] On the other hand, a positioning method applied to the above positioning structure is provided, the method comprising:

[0029] Roughly aligning the first positioning layer and the second positioning layer;

[0030] External forces are applied so that the deformable positioning film is at least partially nested in the limiting portion to achieve precise alignment.

[0031] An embodiment of the present invention provides a positioning structure, which is used to position a first part to be positioned and a second part to be positioned; the positioning structure includes a first positioning layer, a second positioning layer, and at least one deformable positioning film, and at least one deformable positioning film is arranged on the first positioning layer; the positioning structure is configured such that: when in a positioning state, the first positioning layer and the second positioning layer are arranged relative to each other, and the deformable positioning film is located between the first positioning layer and the second positioning layer; the first positioning layer is arranged on the first part to be positioned, and the second positioning layer is arranged on the second part to be positioned; the second positioning layer includes at least one limiting portion; the deformable positioning film is configured such that: when the positioning structure is in a positioning state, it is at least partially nested in the limiting portion. By using a deformable positioning film to replace the rigid material in the related art to achieve alignment, damage to the first and second parts to be positioned can be effectively avoided, and the alignment accuracy can be effectively improved, thereby greatly improving the user experience.

[0032] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A schematic structural diagram of a positioning structure provided by an embodiment of the present invention applied to a first part to be positioned and a second part to be positioned;

[0035] Figure 2A schematic view of a positioning structure provided by an embodiment of the present application is shown in FIG. 1.

[0036] Figure 3 A cross-sectional view of the positioning structure shown in FIG. 1 is shown in FIG. 2. Figure 2

[0037] Figure 4 A schematic view of another positioning structure provided by an embodiment of the present application is shown in FIG. 3.

[0038] Figure 5 A cross-sectional view of the positioning structure shown in FIG. 3 is shown in FIG. 4. Figure 4 DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0040] In the embodiments of the present application, the terms “first”, “second”, and the like are used to distinguish the same items or similar items with basically the same functions and effects, and are only for clearly describing the technical solutions in the embodiments of the present application, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0041] In the embodiments of the present application, the term “at least one” means one or more than one, unless otherwise explicitly and specifically limited.

[0042] In the embodiments of the present application, the terms “upper”, “lower”, and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not used to indicate or imply that the indicated devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0043] An embodiment of the present application provides a positioning structure, as shown in FIG. 1. Figure 1 The positioning structure is applied to positioning a first to-be-positioned member 1 and a second to-be-positioned member 2.

[0044] As shown in FIG. 1, Figure 1 , Figure 2 and Figure 4 ​​As shown, the positioning structure comprises: a first positioning layer 3, a second positioning layer 4, and at least one deformable positioning film 5, the at least one deformable positioning film 5 being arranged on the first positioning layer 3; the positioning structure is configured such that, in the case of being in the positioning state, the first positioning layer 3 and the second positioning layer 4 are oppositely arranged, and the deformable positioning film 5 is located between the first positioning layer 3 and the second positioning layer 4; the first positioning layer 3 is arranged on the first to-be-positioned member 1, and the second positioning layer 4 is arranged on the second to-be-positioned member 2; the second positioning layer 4 comprises at least one limiting part 6.

[0045] The deformable positioning film is configured to be at least partially nested in the limiting part in the case of the positioning structure being in the positioning state.

[0046] Here, the specific materials of the above-mentioned first to-be-positioned member, the second to-be-positioned member, the first positioning layer, and the second positioning layer are not limited, for example, the materials of the above-mentioned first to-be-positioned member, the second to-be-positioned member, the first positioning layer, and the second positioning layer can all comprise rigid materials; or, the materials of the above-mentioned first to-be-positioned member, the second to-be-positioned member, the first positioning layer, and the second positioning layer can all comprise flexible materials; or, one or part of the first to-be-positioned member, the second to-be-positioned member, the first positioning layer, and the second positioning layer comprises rigid materials, and the rest or the other comprises flexible materials, which is subject to actual application.

[0047] Here, the specific types of the above-mentioned first to-be-positioned member and the second to-be-positioned member are not limited, for example, the above-mentioned first to-be-positioned member and the second to-be-positioned member can all comprise a flexible circuit board (FPC), a printed circuit board (PCB), or a flexible substrate of a display substrate, etc. Specifically, when the first to-be-positioned member is an FPC, the second to-be-positioned member can be a PCB or a flexible substrate of a display substrate; or, when the first to-be-positioned member is a PCB, the second to-be-positioned member can be an FPC or a flexible substrate of a display substrate; or, when the first to-be-positioned member is a flexible substrate of a display substrate, the second to-be-positioned member can be an FPC or a PCB, which is subject to actual application.

[0048] Here, the positional relationship of the above-mentioned first to-be-positioned member and the second to-be-positioned member before positioning is not specifically limited, for example, in the case before positioning, the first to-be-positioned member and the second to-be-positioned member can be oppositely arranged; or, the first to-be-positioned member and the second to-be-positioned member can not be oppositely arranged, for example, the first to-be-positioned member and the second to-be-positioned member can be located on the same horizontal plane. In order to facilitate the positioning structure to directly position, it is preferred that, in the case before positioning, the first to-be-positioned member and the second to-be-positioned member are oppositely arranged.

[0049] The positional relationship between the first positioning layer and the second positioning layer before positioning is not specifically limited. For example, before positioning, the first positioning layer and the second positioning layer can be arranged relative to each other; or the first positioning layer and the second positioning layer can be arranged not relative to each other, for example, the first positioning layer and the second positioning layer can be located on the same horizontal plane. In order to facilitate direct positioning of the deformable positioning film with the limiting portion, it is preferred that the first positioning layer and the second positioning layer be arranged relative to each other before positioning.

[0050] The deformable positioning film is a positioning film that deforms under external influences and returns to its original shape or maintains its deformation after the external influence is removed. The external influence here depends on the material of the deformable positioning film. For example, if the deformable positioning film is made of a photosensitive material, the external influence is illumination; if the deformable positioning film is made of a magnetic material, the external influence is a magnetic field; and if the deformable positioning film is made of a conductive material, the external influence is an electric field. These are not specifically limited.

[0051] The positioning structure includes at least one deformable positioning film. The specific number of the deformable positioning film is not limited here. For example, refer to Figure 1 As shown, the number of the above-mentioned deformable positioning film 5 is one; of course, the number of the deformable positioning film can also be multiple. Figure 3 and Figure 5 Take the number of deformable positioning films as two as an example, Figure 3 As shown, the positioning structure includes a first deformable positioning film 51 and a second deformable positioning film 52. In practical applications, the number of deformable positioning films can be determined according to the number of limiting parts. In order to save materials, usually only one deformable positioning film is provided.

[0052] Furthermore, the number of layers of the deformable positioning film is not specifically limited. For example, the deformable positioning film may include one layer; or the deformable positioning film may include multiple layers. Figure 1 、 Figure 2 and Figure 4 The illustration is made by taking a deformable positioning film as an example. Figure 3 and Figure 5 Take the deformable positioning film as an example with two layers, refer to Figure 3 As shown, the first deformable positioning film 51 includes a first deformable positioning sub-film 511 and a first deformable positioning sub-film 512 ; the second deformable positioning film 52 includes a second deformable positioning sub-film 521 and a second deformable positioning sub-film 522 .

[0053] The second positioning layer includes at least one limiting portion. The specific number of the limiting portions is not limited here. For example, the number of the limiting portion can include one; of course, the number of the limiting portions can include multiple. Figure 1 The illustration is made by taking one limiting portion as an example. Figure 2-5 The illustrations are all based on the number of two limiting parts. In actual applications, the number of limiting parts can be determined according to the number of deformable positioning films. In order to save materials, usually only one limiting part is provided. When the number of limiting parts includes multiple, the sizes of the limiting parts can be the same or different. Figure 2-5 The two limit parts shown are used as an example for explanation. Figure 2 、 Figure 4 and Figure 5 As shown, the two limiting parts are the same size; Figure 3 As shown, the two limiting portions are of different sizes.

[0054] Furthermore, the type of the limiting portion is not specifically limited here. For example, the limiting portion may be a limiting hole, or the limiting portion may be a deformable limiting film. Figure 2 and Figure 3 The limiting portion is illustrated as a limiting hole 61 as an example, wherein: Figure 3 The limiting holes include a first limiting hole 611 and a second limiting hole 612 . Figure 4 and Figure 5 The illustration is made by taking the limiting portion as the deformable limiting film 62 as an example.

[0055] The above-mentioned deformable positioning film is configured to be at least partially nested in the limiting portion when the positioning structure is in the positioning state, which means that when the positioning structure is in the positioning state, the deformable positioning film can be partially nested in the limiting portion; or, when the positioning structure is in the positioning state, the deformable positioning film can be completely nested in the limiting portion. No specific limitation is made here.

[0056] Furthermore, there is no specific limitation here on how the above-mentioned deformable positioning film is nested in the limiting portion. For example, when the orthographic projection of the above-mentioned deformable positioning film on the first positioning layer is located within the orthographic projection of the limiting portion on the first positioning layer, the deformable positioning film expands when the positioning structure is in a positioning state, thereby being nested in the limiting portion; or, when the orthographic projection of the above-mentioned limiting portion on the first positioning layer is located within the orthographic projection of the deformable positioning film on the first positioning layer, the deformable positioning film contracts when the positioning structure is in a positioning state, thereby being nested in the limiting portion; or, when the orthographic projection of the above-mentioned deformable positioning film on the first positioning layer overlaps with the orthographic projection of the limiting portion on the first positioning layer, the deformable positioning film is directly nested in the limiting portion when the positioning structure is in a positioning state.

[0057] Here, the shape of the limiting portion is not limited, and for example, the shape of the limiting portion in parallel to the first positioning layer can include a circle, a rectangle, a trapezoid, etc. Figure 2 For example, the shape of the limiting portion in parallel to the first positioning layer is a circle. Figure 4 For example, the shape of the limiting portion in parallel to the first positioning layer is a rectangle.

[0058] The positioning structure provided by the embodiment of the present application is applied to position a first to-be-positioned member and a second to-be-positioned member. The positioning structure includes a first positioning layer, a second positioning layer, and at least one deformable positioning film. The at least one deformable positioning film is arranged on the first positioning layer. The positioning structure is configured to, in a positioning state, have the first positioning layer and the second positioning layer arranged oppositely and the deformable positioning film located between the first positioning layer and the second positioning layer. The first positioning layer is arranged on the first to-be-positioned member, and the second positioning layer is arranged on the second to-be-positioned member. The second positioning layer includes at least one limiting portion. The deformable positioning film is configured to, in the positioning state of the positioning structure, be at least partially nested in the limiting portion. In this way, the deformable positioning film is used to replace the rigid material in the related art to realize positioning, which can effectively avoid damage to the first to-be-positioned member and the second to-be-positioned member, and can effectively improve the positioning accuracy, thereby greatly improving the user experience.

[0059] In addition, the limiting portion in the related art usually needs to be prepared through one or more semiconductor processes, which causes the limiting portion to have various deformation problems such as scaling, damage, and distortion to some extent. When the rigid positioning material in the related art is used for positioning, the rigid positioning material cannot be adaptively adjusted according to the actual situation of the limiting portion, which makes it more difficult to improve the positioning accuracy. However, the positioning structure provided by the embodiment uses the deformable positioning film, which can be adaptively deformed according to the actual situation of the limiting portion, for example, the deformable positioning film can be deformed according to the scaling, damage, and distortion of the limiting portion, thereby further improving the positioning accuracy.

[0060] Optionally, as shown in Figure 2 and Figure 3 The limiting portion includes a positioning hole 61.

[0061] As shown in Figure 2 and Figure 3As shown, in the case that the positioning structure is in the pre-positioning state, the orthographic projection of the second positioning hole 612 on the first positioning layer 3 is within the orthographic projection of the deformable positioning film 5 on the first positioning layer 3; the deformable positioning film 5 is configured to fill the positioning hole 61 in the case that the positioning structure is in the positioning state. Since the area of the deformable positioning film is larger than the area of the positioning hole, the deformable positioning film can fill the positioning hole after deformation when positioning, so that the deformable positioning film can deform according to the actual situation (scaling, damage and distortion, etc.) of the positioning hole, realize conformal and accurate positioning, and make the deformable positioning film and the positioning hole nest more firmly.

[0062] Here, the size of the positioning hole is not specifically limited, and the size of the positioning hole can be determined according to the size of the deformable positioning film corresponding thereto. Here, the number of the positioning hole is not specifically limited, and for example, the number of the positioning hole can include one; or the number of the positioning hole can include multiple, Figure 2 and Figure 3 For example, the number of the positioning hole is two. When the number of the positioning hole includes multiple, the size of each positioning hole can be the same, of course, it can also be different. Figure 3 For example, the size of the two positioning holes 61 is the same. Figure 2 For example, the size of the first positioning hole 611 and the second positioning hole 612 is different, wherein, Figure 4 The first positioning hole 611 is larger than the second positioning hole 612.

[0063] Here, the shape of the positioning hole is not specifically limited, and for example, the shape of the positioning hole parallel to the first positioning layer can include a circle, a rectangle, a trapezoid, etc. Figure 5 For example, the shape of the positioning hole parallel to the first positioning layer is a circle.

[0064] Optionally, as shown in Figure 4 and Figure 5 As shown, the limiting part includes a deformable limiting film 62; the deformable limiting film 62 is configured to nest all the deformable positioning films 5 in the case that the positioning structure is in the positioning state. So that the deformable limiting film and the deformable positioning film are more firmly positioned after positioning.

[0065] Here, the size of the deformable limiting film is not specifically limited, and the size of the deformable limiting film can be determined according to the size of the deformable positioning film corresponding thereto. Here, the number of the deformable limiting film is not specifically limited, and for example, the number of the deformable limiting film can include one; or the number of the deformable limiting film can include multiple, Figure 4 and Figure 5The number of the deformable limiting film is taken as two as an example for illustration. When the number of the deformable limiting film includes multiple, the size of each deformable limiting film can be the same, of course, can be different. Figure 4 and Figure 1 The size of the two deformable limiting films is taken as the same as an example for illustration.

[0066] Here, the shape of the deformable limiting film is not limited, for example, the shape of the deformable limiting film parallel to the first positioning layer can include a circle, a rectangle, a trapezoid, etc. Figure 2 The shape of the deformable limiting film parallel to the first positioning layer is taken as a rectangle as an example for illustration.

[0067] The deformable limiting film refers to a limiting film that deforms under external action and restores to the original shape or remains deformed after the external action is removed. Here, the external action is related to the material of the deformable limiting film, for example, in the case of a light-sensitive material, the external action is light; in the case of a magnetic material, the external action is magnetic field force; in the case of a conductor material, the external action is electric field force, which is not limited.

[0068] Optionally, the material of the deformable positioning film is the same as that of the deformable limiting film. Thus, the deformation of the deformable positioning film and the deformable limiting film can be realized simultaneously by the same external action, which is simple and easy to operate; and the deformation ability of the deformable positioning film and the deformable limiting film is the same, which is more easily nested.

[0069] Here, the specific material of the deformable positioning film and the deformable limiting film is not limited, for example, the material of the deformable positioning film and the deformable limiting film both includes a magnetic material, so that the shape can be deformed under the action of a magnetic field. Here, the magnetic material is not limited, for example, the magnetic material can include ferroferric oxide.

[0070] Optionally, the deformable positioning film includes at least one deformable positioning sub-film.

[0071] Here, the specific number of layers of the deformable positioning film is not limited, for example, the deformable positioning film can include one layer; or, the deformable positioning film can include multiple layers. Figure 4 、 Figure 3 and Figure 5 both take the deformable positioning film as one layer as an example for illustration, Figure 5 and ​ both take the deformable positioning film as two layers as an example for illustration.

[0072] If it is convenient for manufacturing, the deformable positioning film can be one layer. However, when the deformable positioning film is one layer, the deformation of the deformable positioning film is only determined by the material of the deformable positioning film and the external action, and it is difficult to achieve more precise control of the deformation of the deformable positioning film. When the deformable positioning film is multi-layer, the deformation of the deformable positioning film is not only determined by the material of the deformable positioning film and the external action, but also needs to be limited by the adjacent layers, so that the deformation of each layer of the deformable positioning film can be more precisely controlled.

[0073] In order to more precisely control the deformation of each layer of the deformable positioning film and save materials, optionally, referring to FIG. 5, ​ The deformable positioning film includes a first deformable positioning sub-film 512 and a second deformable positioning sub-film 511, the second deformable positioning sub-film 511 is arranged between the first deformable positioning sub-film 512 and the first positioning layer 3; the first deformable positioning sub-film 512 is configured to be at least partially nested in the limiting portion 62 when the positioning structure is in the positioning state; the second deformable positioning sub-film 511 is configured to be at least partially nested in the first deformable positioning sub-film 512 when the positioning structure is in the positioning state. Thus, when the positioning structure is in the positioning state, the first deformable positioning sub-film can be deformed according to the limiting portion and at least partially nested in the limiting portion, at the same time, the second deformable positioning sub-film can be slightly deformed according to the deformation of the first deformable positioning sub-film and at least partially nested in the first deformable positioning sub-film, so as to achieve more precise positioning. Moreover, the deformation of the first deformable positioning sub-film can be determined by the second deformable positioning sub-film and the external action, so that the deformation of the first deformable positioning sub-film can be adjusted according to actual needs, which is suitable for nanometer and micrometer level alignment accuracy adjustment.

[0074] Here, the area size, thickness and the like of the first deformable positioning sub-film and the second deformable positioning sub-film are not specifically limited, for example, the area size of the first deformable positioning sub-film and the second deformable positioning sub-film can be the same or different, and the thickness of the first deformable positioning sub-film and the second deformable positioning sub-film can be the same or different. In order to facilitate manufacturing, it is preferred that the thickness and the area size of the first deformable positioning sub-film and the second deformable positioning sub-film are the same.

[0075] The first deformable positioning sub-film is configured to be at least partially nested in the limiting portion when the positioning structure is in the positioning state, which means that the first deformable positioning sub-film is partially nested in the limiting portion when the positioning structure is in the positioning state, or the first deformable positioning sub-film is entirely nested in the limiting portion when the positioning structure is in the positioning state, which is not specifically limited here.

[0076] The second deformable positioning sub-film is configured to be at least partially nested in the first deformable positioning sub-film when the positioning structure is in the positioning state, which means that the second deformable positioning sub-film is partially nested in the first deformable positioning sub-film when the positioning structure is in the positioning state, or the second deformable positioning sub-film is entirely nested in the first deformable positioning sub-film when the positioning structure is in the positioning state, which is not specifically limited herein.

[0077] To be able to control the deformation of the first deformable positioning sub-film and the second deformable positioning sub-film under external action respectively, optionally, the deformation ability of the first deformable positioning sub-film is greater than that of the second deformable positioning sub-film.

[0078] Here, the deformation ability of the first deformable positioning sub-film and the second deformable positioning sub-film is not specifically limited, for example, the deformation ability of the first deformable positioning sub-film and the second deformable positioning sub-film can include the expansion ability, which is expressed by an expansion coefficient. Specifically, when the expansion coefficient of the first deformable positioning sub-film is greater than that of the second deformable positioning sub-film, the expansion amount of the first deformable positioning sub-film is greater than that of the second deformable positioning sub-film when subjected to the same external action, so that the first deformable positioning sub-film can be nested in the limiting portion, the second deformable positioning sub-film is nested in the first deformable positioning sub-film, and the second deformable positioning sub-film can also be filled between the first deformable positioning sub-film and the first positioning layer.

[0079] Optionally, the first positioning layer and the second positioning layer each include a flexible layer. This helps to realize the flexibility, miniaturization and high integration of the electronic product.

[0080] The embodiment of the present application also provides a display device including the positioning structure.

[0081] The display device can be a flexible display device (also referred to as a flexible screen), which is not limited herein. The display device can be an OLED (Organic Light-Emitting Diode) display device, and can also be a television, a digital camera, a mobile phone, a tablet computer or any product or component having a display function including the OLED display device. The display device can also be applied to the fields of identity recognition and medical instruments, and products with good promotion prospects include security identity authentication, intelligent door locks, medical image acquisition, etc. The display device has the advantages of good display effect, long service life, high stability, high contrast, good imaging quality and high product quality.

[0082] Optionally, the display device further comprises a display substrate and a flexible circuit board; the display substrate comprises a non-display area, and the non-display area comprises a substrate; and the flexible circuit board is bonded to the substrate.

[0083] The substrate serves as a first positioning member, and the flexible circuit board serves as a second positioning member; the substrate comprises a first positioning layer, and the flexible circuit board comprises a second positioning layer; the deformable positioning film of the positioning structure is arranged on a surface of the substrate close to the flexible circuit board, and / or the deformable positioning film of the positioning structure is arranged on a surface of the flexible circuit board close to the substrate. Thus, the substrate and the flexible circuit board can be aligned through the positioning structure, which helps to realize the flexibility, miniaturization and high integration of the display device.

[0084] The display substrate can be an OLED (Organic Light-Emitting Diode) display substrate, and the specific type of the display substrate is not limited herein.

[0085] The flexible circuit board can be an FPC circuit board, and the specific type of the flexible circuit board is not limited herein.

[0086] The non-display area of the display substrate refers to an area outside the display area, and is generally used for arranging a driving circuit and the like.

[0087] The substrate can comprise a flexible material, for example, polyimide (PI), and the specific type of the substrate is not limited herein.

[0088] The specific bonding manner of the flexible circuit board and the substrate is not limited herein. For example, the flexible circuit board and the substrate can be directly bonded; or the flexible circuit board and the substrate can be indirectly bonded through other structures.

[0089] It should be noted that the display device can also be formed by splicing a plurality of display panels, wherein one display panel comprises a display substrate, and the substrate on the display substrate is aligned with a flexible circuit board on another display panel.

[0090] The embodiment of the application further provides a positioning method applied to the positioning structure.

[0091] The method comprises the following steps.

[0092] S01, coarsely aligning the first positioning layer and the second positioning layer.

[0093] Herein, the specific materials of the first positioning layer and the second positioning layer are not limited, and for example, the materials of the first positioning layer and the second positioning layer can both include rigid materials; or the materials of the first positioning layer and the second positioning layer can both include flexible materials; or one or part of the first positioning layer and the second positioning layer includes rigid materials, and the remaining part or the other includes flexible materials, and the specific implementation can be determined according to actual application.

[0094] Herein, the rough alignment is not limited, and as long as the first positioning layer and the second positioning layer partially overlap.

[0095] S02, an external action is applied, so that the deformable positioning film is at least partially nested in the limiting part to realize fine alignment.

[0096] Herein, the external action is not limited, and the external action is related to the material of the deformable limiting film, for example, in the case that the material of the deformable limiting film is a light-sensitive material, the external action is light; in the case that the material of the deformable limiting film is a magnetic material, the external action is a magnetic field force; in the case that the material of the deformable limiting film is a conductor material, the external action is an electric field force, and the specific implementation is not limited.

[0097] The deformable positioning film is at least partially nested in the limiting part, which means that the deformable positioning film is partially nested in the limiting part, or the deformable positioning film is entirely nested in the limiting part, and the specific implementation is not limited.

[0098] By performing the steps S01 and S02, the deformable positioning film is used to replace the rigid material in the related art to realize alignment, which can effectively avoid damage to the first and second positioning objects, and can effectively improve the alignment accuracy, thereby greatly improving the user experience.

[0099] The structure of the positioning structure in the embodiments of the present application can be referred to the above embodiments, and details are not repeated herein.

[0100] The term “embodiment” as used herein means that the specific features, structures or characteristics described in connection with the embodiment are included in at least one embodiment of the present application.

[0101] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not described in detail in order not to obscure the understanding of the present specification.

[0102] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A positioning structure, characterized in that: Used to position a first part to be positioned and a second part to be positioned; The positioning structure includes a first positioning layer, a second positioning layer and at least one deformable positioning film, and the at least one deformable positioning film is arranged on the first positioning layer; The positioning structure is configured as follows: when in a positioning state, the first positioning layer and the second positioning layer are arranged opposite to each other, and the deformable positioning film is located between the first positioning layer and the second positioning layer; the first positioning layer is arranged on the first part to be positioned, and the second positioning layer is arranged on the second part to be positioned; The second positioning layer includes at least one limiting portion; The deformable positioning film is configured to be at least partially nested in the limiting portion when the positioning structure is in the positioning state. The deformable positioning film is a positioning film that deforms under external influences and returns to its original shape or remains deformed after the external influences are removed.

2. The positioning structure according to claim 1, characterized in that: The limiting portion includes a positioning hole; When the positioning structure is in a pre-positioning state, the orthographic projection of the positioning hole on the first positioning layer is located within the orthographic projection of the deformable positioning film on the first positioning layer; The deformable positioning film is configured to fill the positioning hole when the positioning structure is in the positioning state.

3. The positioning structure according to claim 1, characterized in that: The limiting portion includes a deformable limiting film; The deformable limiting film is configured to nest all of the deformable positioning films when the positioning structure is in the positioning state.

4. The positioning structure according to claim 3, characterized in that: The material of the deformable positioning film is the same as that of the deformable limiting film.

5. The positioning structure according to claim 1, characterized in that: The deformable positioning film includes at least one layer of deformable positioning sub-film.

6. The positioning structure according to claim 5, characterized in that: The deformable positioning film includes a first deformable positioning sub-film and a second deformable positioning sub-film, wherein the second deformable positioning sub-film is arranged between the first deformable positioning sub-film and the first positioning layer; The first deformable positioning sub-film is configured to at least partially nest in the limiting portion when the positioning structure is in the positioning state; The second deformable positioning sub-film is configured to be at least partially nested in the first deformable positioning sub-film when the positioning structure is in the positioning state.

7. The positioning structure according to claim 6, characterized in that: The deformation capability of the first deformable positioning sub-film is greater than the deformation capability of the second deformable positioning sub-film.

8. The positioning structure according to claim 1, characterized in that: The first positioning layer and the second positioning layer each include a flexible layer.

9. A display device, characterized in that: The invention comprises the positioning structure according to any one of claims 1 to 8.

10. The display device according to claim 9, wherein The display device further includes a display substrate and a flexible circuit board; The display substrate includes a non-display area, the non-display area includes a substrate, and the flexible circuit board is bound to the substrate; The substrate is used as a first part to be positioned, and the flexible circuit board is used as a second part to be positioned; The substrate includes a first positioning layer, and the flexible circuit board includes a second positioning layer; The deformable positioning film of the positioning structure is arranged on a surface of the substrate close to the flexible circuit board, and / or the deformable positioning film of the positioning structure is arranged on a surface of the flexible circuit board close to the substrate.

11. A positioning method for a positioning structure according to any one of claims 1 to 8, characterized in that: The method comprises: Roughly aligning the first positioning layer and the second positioning layer; External forces are applied so that the deformable positioning film is at least partially nested in the limiting portion to achieve precise alignment.

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