Flexible screen module and display device

Abstract

The invention discloses a flexible screen module and a display device.The flexible screen module comprises a cover plate layer, a functional layer and a supporting layer which are sequentially arranged in a stacked mode, the supporting layer comprises a plurality of sections connected in sequence, at least one of the sections is a first section, the length of the first section is larger than or equal to the length of the other sections, and the length of the functional layer is larger than or equal to the length of the other sections. The thickness of the first section is larger than or equal to the sum of the thickness of the cover plate layer and the thickness of the functional layer, and the first section is provided with a component connecting structure and / or a battery connecting structure. The overall rigidity of the flexible screen module can be improved, the mechanical performance of the falling ball and the falling pen can be improved, the problem that collapse exists when the flexible screen module is pressed is solved, the heat stability of the flexible screen module can be improved, the supporting layer can further integrate the function of being connected with other parts, and when the flexible screen module is applied to the display device, the supporting layer is not prone to deformation. The number of parts can be reduced, and space is saved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a flexible screen module and a display device. Background Art

[0002] In the related art, the flexible screen of the flexible screen module is usually located on the upper side, and the bottom is supported by a supporting back plate. In the flexible screen module with this structure, the user needs to press the screen by hand to operate during use. However, due to the insufficient rigid support of the flexible screen module, there is a risk of the screen collapsing due to pressing. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a flexible screen module, which can improve its own strength and rigidity, and is conducive to alleviating the problem of insufficient rigidity of the screen module surface during use, and easy collapse when pressed.

[0004] The present invention also aims to provide a display device to apply the above-mentioned flexible screen module.

[0005] According to an embodiment of the present invention, the flexible screen module includes a cover layer, a functional layer and a support layer which are stacked in sequence, the support layer includes a plurality of segments connected in sequence, at least one of the plurality of segments is a first segment, the length of the first segment is greater than or equal to the length of the remaining segments, and the thickness of the first segment is greater than or equal to the sum of the thicknesses of the cover layer and the functional layer, and the first segment is provided with a component connection structure and / or a battery connection structure.

[0006] According to the flexible screen module of the embodiment of the present invention, by making the thickness of the first section of the support layer greater than or equal to the sum of the thicknesses of the cover layer and the functional layer, the overall rigidity of the flexible screen module can be improved, and the mechanical properties of the ball and pen falling can be improved, which is beneficial to solving the problem of collapse when the flexible screen module is pressed. In addition, the larger thickness of the first section can improve the overall thermal conductivity of the support layer, which is beneficial to the heat dissipation of the flexible screen module and can improve the thermal stability of the flexible screen module. The support layer can also connect various electronic components through the component connection structure, and / or connect the battery through the battery connection structure, so that the function of connecting other components can be integrated. When the flexible screen module is applied to a display device, the number of components can be reduced and the internal space of the display device can be saved.

[0007] In some embodiments of the present invention, the thickness of the first section is t1, and the sum of the thicknesses of the cover layer and the functional layer is t2, wherein 6≤t1 / t2≤15.

[0008] In some embodiments of the present invention, the thickness of the first section is t1, wherein 1.8 mm≤t1≤3 mm.

[0009] In some embodiments of the present invention, there are at least two first sections, at least one of the multiple sections is a second section, any two adjacent first sections are connected by the second section, the first section is provided with a hinge connection structure close to the second section, and the thickness of the second section is less than the thickness of the first section.

[0010] In some embodiments of the present invention, the thickness of the second section is t3, the thickness of the first section is t1, wherein t1 / t3≥15.

[0011] In some embodiments of the present invention, at least one of the multiple segments is a third segment, the third segment is connected to one end of the first segment away from the second segment, and / or the third segment is connected to the first segment and the other end adjacent to the first segment, and the thickness of the third segment is less than the thickness of the first segment.

[0012] In some embodiments of the present invention, the support layer is made of at least one of titanium alloy, aluminum alloy, magnesium alloy, and carbon fiber.

[0013] In some embodiments of the present invention, the component connection structure is integrated on the first section and configured to enable the components to be adhered to the surface of the first section, and / or the battery connection structure is integrated on the first section and configured to enable the battery to be adhered to the surface of the first section.

[0014] A display device according to an embodiment of the present invention includes: a shell, the shell is provided with an opening; a flexible screen module as described in any of the foregoing, the flexible screen module is connected to the shell and closes the opening, and the first section is provided with a component connection structure and a battery connection structure; a mainboard, the mainboard is located in the shell and connected to the component connection structure; and a battery, the battery is located in the shell and connected to the battery connection structure.

[0015] According to the display device of the embodiment of the present invention, since the flexible screen module has high strength and rigidity as a whole, the problem of screen collapse when pressed can be effectively solved, thereby improving the user experience of the display device. The flexible screen module can also integrate the function of connecting the motherboard and the battery, thereby reducing the internal components of the display device, making the internal structure of the display device more compact, which is conducive to achieving a lightweight design, and improving the strength and waterproof performance of the whole machine. It can also optimize the space inside the display device, providing a larger layout space for the battery, thereby extending the battery life.

[0016] In some embodiments of the present invention, at least one of the multiple sections is a second section, and at least one is a third section, the second section is connected to the first section, the third section is connected to one end of the first section away from the second section, and / or the third section is connected to the first section and the other end adjacent to the first section; the shell includes a connected back cover and a frame, the frame is an annular structure arranged circumferentially around the back cover, and the frame is connected to the third section.

[0017] In some embodiments of the present invention, the third section is provided with a first connecting hole, the frame is provided with a protrusion extending toward a side close to the third section, the protrusion is provided with a second connecting hole, the display device includes a connecting member, the connecting member is provided in the first connecting hole and the second connecting hole, and the third section and the frame are fixed by adhesive.

[0018] In some embodiments of the present invention, in a direction in which the edge of the supporting layer points to the adjacent frame, a protruding dimension of the protruding portion is less than or equal to a dimension of the third section.

[0019] In some embodiments of the present invention, the protrusion has a first surface facing away from the third section, the first section has a second surface facing the mainboard and the battery, and the second surface is coplanar with the first surface.

[0020] In some embodiments of the present invention, one of the third section and the frame is provided with a groove, and the other is provided with an inserting portion, the inserting portion is arranged in the groove, and the third section and the frame are fixed by adhesive.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 Schematic diagram of the structure of the flexible screen module provided in some embodiments of the present invention Figure 1 ;

[0024] Figure 2 for Figure 1 A local enlarged schematic diagram of location II;

[0025] Figure 3 Schematic diagram of the structure of the flexible screen module provided in some embodiments of the present invention Figure 2 ;

[0026] Figure 4 A top view of a flexible screen module provided in some embodiments of the present invention;

[0027] Figure 5 A top view of a flexible screen module provided by another embodiment of the present invention;

[0028] Figure 6 for Figure 3 A local enlarged schematic diagram of VI;

[0029] Figure 7 A schematic diagram of the structure of a display device provided by some embodiments of the present invention;

[0030] Figure 8 An exploded view of a display device provided in some embodiments of the present invention;

[0031] Fig. 9 A schematic diagram of the structure of a support layer provided in some embodiments of the present invention;

[0032] Fig.10 An exploded view of a partial assembly structure of a support layer and a frame provided in some embodiments of the present invention;

[0033] Fig.11 A schematic diagram of a partial assembly structure of a support layer and a frame provided in some embodiments of the present invention;

[0034] Fig.12 A schematic structural diagram of a support layer provided in another embodiment of the present invention;

[0035] Fig.13 An exploded view of a partial assembly structure of a support layer and a frame provided in another embodiment of the present invention;

[0036] Fig.14 A schematic diagram of a partial assembly structure of a support layer and a frame provided in another embodiment of the present invention.

[0037] Reference numerals:

[0038] 1000. Display device;

[0039] 100. Flexible screen module;

[0040] 10. Cover layer;

[0041] 20. Functional layer;

[0042] 30. Support layer;

[0043] 31, first section; 311, component connection structure; 312, battery connection structure; 313, hinge connection structure; 31a, second surface;

[0044] 32. Section 2;

[0045] 33. third section; 33a. first connecting hole;

[0046] 200, housing;

[0047] 200a, open; 210, back cover; 220, frame; 2201, protruding portion; 2201a, second connecting hole; 2201b, first surface; 220a, fixing groove;

[0048] 300, motherboard; 400, battery; 500, hinge;

[0049] 600, connector; 101, groove; 102, plug-in portion;

[0050] 700, viscose;

[0051] 800, pressure strip; 800a, convex. DETAILED DESCRIPTION

[0052] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] In addition, features defined as “first” or “second” may explicitly or implicitly include one or more such features, and are used to distinguish and describe features, without any distinction in order or importance.

[0055] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0056] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] Reference below Figure 1-Figure 6 , describing a flexible screen module 100 according to an embodiment of the present invention.

[0058] like Figure 1 and Figure 2 As shown, the flexible screen module 100 according to an embodiment of the present invention comprises a cover layer 10, a functional layer 20 and a support layer 30 stacked in sequence. The support layer 30 comprises a plurality of sequentially connected sections, at least one of which is a first section 31, the length of the first section 31 is greater than or equal to the length of the remaining sections, and the thickness of the first section 31 is greater than or equal to the sum of the thicknesses of the cover layer 10 and the functional layer 20, and the first section 31 is provided with a component connection structure 311 and / or a battery connection structure 312.

[0059] The cover layer 10 may refer to a transparent protective layer located on the display side of the flexible screen, and may also have good optical properties and anti-fingerprint and anti-fouling capabilities, and may be made of but not limited to plastic, glass or composite materials, etc.

[0060] The functional layer 20 may refer to a layer structure that implements core functions such as screen display and touch control. For example, the screen in the functional layer 20 may be, but is not limited to, an OLED flexible screen, an AMOLED flexible screen, an LCD flexible screen, a Micro LED flexible screen, and the like.

[0061] The support layer 30 may refer to a structural member that provides necessary support and shape for the screen and is used to support the entire flexible screen module 100. Alternatively, it may be understood to refer to a BKT (usually Bracket).

[0062] In the above technical solution, the support layer 30 may be composed of a plurality of sections, one of the plurality of sections may be the first section 31, some of the sections may be the first section 31, or all of the sections may be the first section 31. "The length of the first section 31 is greater than or equal to the length of the remaining sections", refer to Figure 1 , the length of the first section 31 may refer to Figure 1That is, the length of the first section 31 is the largest, either larger than other sections or the same as other sections. Thus, the first section 31 can be the main section that supports the cover layer 10 and the functional layer 20.

[0063] Since the thickness of the first section 31 is greater than or equal to the sum of the thicknesses of the cover layer 10 and the functional layer 20, the first section 31 can have a greater strength and rigidity by having a larger thickness, and can better support the cover layer 10 and the functional layer 20, thereby improving the overall mechanical properties of the flexible screen module 100. When the flexible screen module 100 is assembled or, whether in the transportation process or in the process of assembling with other components, due to the large thickness of the first section 31, it can provide greater rigid support for the cover layer 10 and the functional layer 20. When an external force acts on the surface of the flexible screen module 100, the risk of deformation of the surface of the flexible screen module 100 is small, for example, the screen surface is not easy to collapse, which can also reduce the risk of mold imprints, black spots or broken screens on the surface of the flexible screen module 100.

[0064] Since the thickness of the first section 31 is relatively large, the cross-section of the first section 31 is also increased. According to the thermal conductivity calculation formula Q=kAΔT / L, it can be seen that the thermal conductivity efficiency of the first section 31 with a larger thickness is greater, thereby improving the overall thermal conductivity of the supporting layer 30, and thus improving the overall heat dissipation performance of the flexible screen module 100.

[0065] The component connection structure 311 may refer to a structure for connecting electronic components, wherein the electronic components may be, but are not limited to, a mainboard 300 (e.g., a PCB circuit board, etc.). The battery connection structure 312 may refer to a structure for connecting a battery 400. It can be understood that the first section 31 may only be provided with the component connection structure 311, or only be provided with the battery connection structure 312, or may be provided with both the component connection structure 311 and the battery connection structure 312. By providing the component connection structure 311 and / or the battery connection structure 312 in the first section 31, the support layer 30 may be directly used to install various components and the battery 400.

[0066] According to the flexible screen module 100 of the embodiment of the present invention, by making the thickness of the first section 31 of the support layer 30 greater than or equal to the sum of the thickness of the cover layer 10 and the functional layer 20, the overall rigidity of the flexible screen module 100 can be improved, and the mechanical properties of the ball and pen drop can be improved, which is conducive to solving the problem of collapse when the flexible screen module 100 is pressed. In addition, the large thickness of the first section 31 can improve the overall thermal conductivity of the support layer 30, which is conducive to the heat dissipation of the flexible screen module 100 and can improve the thermal stability of the flexible screen module 100. The support layer 30 can also connect various electronic components through the component connection structure 311, and / or connect the battery 400 through the battery connection structure 312, so that the function of connecting other components can be integrated. When the flexible screen module 100 is applied to the display device 1000, the number of components can be reduced and the internal space of the display device 1000 can be saved.

[0067] In some embodiments of the present invention, Figure 2 As shown, the thickness of the first section 31 is t1, and the sum of the thicknesses of the cover plate layer 10 and the functional layer 20 is t2, wherein 6≤t1 / t2≤15.

[0068] t1 / t2 can be, but is not limited to, 6, 7, 8, 9, 7, 8, 9, 10, 11, 12, 13, 14, 15, etc. It is understandable that if t1 / t2 is less than 6, the thickness of the first section 31 is small, the support rigidity provided to the functional layer 20 is weak, and the effect of improving the overall rigidity of the flexible screen module 100 is also weak. If t1 / t2 is greater than 15, the thickness of the first section 31 is large, which can easily lead to excess performance while providing good support rigidity, increase material costs, and occupy a large space.

[0069] That is to say, in the above technical scheme, by setting the ratio of the first section 31 to the sum of the thickness of the cover layer 10 and the functional layer 20 (t2) within the above range, it is possible to ensure that the first section 31 can provide good support for the functional layer 20 and ensure that the overall rigidity of the flexible screen module 100 is good, while saving material usage and reducing the volume of the supporting layer 30, which is beneficial to saving space, and can also control the overall thickness of the flexible screen module 100 to avoid the module being too thick, taking into account both structural strength and lightweight design requirements.

[0070] In some embodiments of the present invention, the thickness of the first section 31 is t1, wherein 1.8 mm≤t1≤3 mm.

[0071] t1 may be, but is not limited to, 1.8 mm, 1.9 mm, 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3 mm, etc. If t1 is less than 1.8 mm, the thickness of the first section 31 is small, its own rigidity and strength are not very high, and the supporting rigidity for the functional layer 20 is poor; if t1 is greater than 3 mm, the thickness of the first section 31 is large, its own rigidity and strength are large, and while satisfying the requirement of having good supporting rigidity for the functional layer 20, it will cause performance waste, increase material costs, and occupy a large space.

[0072] That is to say, in the above technical solution, by setting the thickness of the first section 31 within the above range, the thickness of the first section 31 can be set within an appropriate range, which can reduce performance waste while ensuring high rigidity and strength, reduce material usage, reduce costs, and also help save space.

[0073] In some embodiments of the present invention, Figure 1 , Figures 3 to 5 As shown, there are at least two first sections 31 , at least one of the multiple sections is a second section 32 , any two adjacent first sections 31 are connected via the second section 32 , and the first section 31 is provided with a hinge connection structure 313 close to the second section 32 .

[0074] The flexible screen module 100 can be applied to a foldable display device 1000, whereby the first section 31 can be more than two and the second section 32 can be more than one. Figure 1 , Figures 3 to 5 , the flexible screen module 100 can be applied to a double-folded display device 1000, then there are two first sections 31, there is one second section 32, and the two first sections 31 are connected through the second section 32. For another example, the flexible screen module 100 can be applied to a three-fold folding display device 1000, there are three first sections 31, there are two second sections 32, and any two adjacent first sections 31 are connected through the second section 32. Of course, the flexible screen module 100 can also be applied to a four-fold, five-fold, etc. display device 1000, which will not be repeated here. Among them, the hinge connection structure 313 may refer to a structure for connecting the hinge 500.

[0075] In the above technical solution, the thickness of the second section 32 may be equal to the thickness of the first section 31 , or may be less than the thickness of the first section 31 , and no specific limitation is made in this embodiment.

[0076] That is to say, by configuring the support layer 30 to include the first section 31 and the second section 32 , the flexible screen module 100 can be folded for use, which is beneficial to increase the flexibility and diversity of use of the flexible screen module 100 .

[0077] In some embodiments of the present invention, the hinge connection structure 313 may be, but is not limited to, an adhesive layer, a snap-fit ​​structure, or a screw hole. For example, the hinge connection structure 313 is an adhesive layer, and the hinge 500 may be directly glued to the first section 31; the hinge connection structure 313 may also be a snap-fit ​​structure, that is, the hinge connection structure 313 is a slot (see Figure 3 and Figure 6 ), the outer side of the hinge 500 is snap-fitted into the slot; the hinge connection structure 313 can also be a screw hole, and the outer shell of the hinge 500 is provided with a matching hole, and can be installed in the screw hole by means of screws and other components.

[0078] In some embodiments of the present invention, Figure 1 , Figures 3 to 5 As shown, the thickness of the second section 32 is less than the thickness of the first section 31. Since the flexible screen module 100 is folded for use, by setting the thickness of the second section 32 to be less than the thickness of the first section 31, the thickness of the second section 32 is thinner, which can reduce the resistance during folding, and is conducive to making the folding of the flexible screen module 100 smoother, and also can reduce the risk of damage to the screen during the folding process.

[0079] In some embodiments of the present invention, Figure 6 As shown, the thickness of the second section 32 is t3, and the thickness of the first section 31 is t1, wherein t1 / t3≥15.

[0080] t1 / t3 may be, but is not limited to, 15, 16, 17, 18, 19, 20, 22, 24, 26, 28, 30, etc. If t1 / t3 is less than 15, the thickness of the second section 32 is smaller than that of the first section 31, which is not conducive to making the second section 32 have greater rigidity and strength, that is, affecting the support strength of the second section 32 to the functional layer 20. In other words, by setting the thickness ratio of the first section 31 to the second section 32 within the above range, the functional difference between the first section 31 and the second section 32 can be highlighted, the first section 31 can be used to stably support the functional layer 20, and the second section 32 can focus on achieving flexible folding, which is conducive to optimizing the overall performance of the module.

[0081] In some embodiments of the present invention, Figures 3 to 5 As shown, at least one of the multiple segments is the third segment 33 , which is connected to one end of the first segment 31 away from the second segment 32 , and / or the third segment 33 is connected to the first segment 31 and the other end adjacent to the first segment 31 .

[0082] It is understandable that the third section 33 may be connected to only one end of the first section 31 away from the second section 32 (see Figure 5 ); the third section 33 may be connected only to the other end of the second section 32 adjacent to the first section 31; the third section 33 may also be connected to the end of the first section 31 away from the second section 32, and also connected to the first section 31 and the other end adjacent to the first section 31 (see Figure 4 ).

[0083] In the above technical solution, the third section 33 can extend beyond the functional layer 20 and the cover layer 10, so that the third section 33 can be fixedly connected to other components. For example, when the flexible screen module 100 is applied to the display device 1000, the flexible screen module 100 can be fixed on the frame 220 of the housing 200. At this time, the third section 33 can be connected to the frame 220, thereby reducing the influence of the connection position on the first section 31, and making the connection between the support layer 30 and the frame 220 more convenient and more stable. It can be seen that the third section 33 can be specifically used to connect external components, which is conducive to the fixed connection of the support layer 30.

[0084] In some embodiments of the present invention, Figure 4 As shown, the thickness of the third section 33 is less than the thickness of the first section 31. Since the third section 33 does not support the functional layer 20, the thinner third section 33 can reduce the amount of material used and help reduce the overall weight of the flexible screen module 100, facilitating lightweight design.

[0085] In some embodiments of the present invention, the material of the support layer 30 is at least one of titanium alloy, aluminum alloy, magnesium alloy, and carbon fiber. The modulus of the above materials can be relatively high, and the support layer 30 using the above materials can have higher strength, thereby better supporting the functional layer 20, and can also have good bending performance, and is conducive to achieving the overall lightweight of the flexible screen module 100. Of course, the material of the support layer 30 can also be other lightweight composite materials, which will not be repeated here one by one.

[0086] In some embodiments of the present invention, the component connection structure 311 is integrated on the first section 31 and configured to allow the components to be attached to the surface of the first section 31, and / or the battery connection structure 312 is integrated on the first section 31 and configured to allow the battery 400 to be attached to the surface of the first section 31. In other words, the component connection structure 311 is directly disposed on the support layer 30 and is an integral part with the support layer 30, and the battery connection structure 312 is directly disposed on the support layer 30 and is an integral part with the support layer 30.

[0087] In some embodiments of the present invention, the component connection structure 311 may be, but is not limited to, a glue layer, a clamping structure, or a screw hole, etc. For example, the component connection structure 311 is a glue layer, and the components such as the mainboard 300 can be directly glued to the first section 31; the component connection structure 311 can also be a clamping structure, that is, the first section 31 is provided with a buckle, and the components such as the mainboard 300 are directly clamped and fixed on the first section 31; the component connection structure 311 can also be a screw hole, and the housing of the components such as the mainboard 300 is provided with a matching hole, and can be installed in the screw hole by means of screws and other components.

[0088] In some embodiments of the present invention, the battery connection structure 312 may be, but is not limited to, a glue layer, a clamping structure, or a screw hole, etc. The connection method between the battery connection structure 312 and the battery 400 can be referred to above and will not be described in detail here.

[0089] like Figure 7 and Figure 8 As shown, the display device 1000 according to an embodiment of the present invention includes a housing 200, a flexible screen module 100, a mainboard 300 and a battery 400. The housing 200 is provided with an opening 200a. The flexible screen module 100 is the flexible screen module 100 of any of the above embodiments. The flexible screen module 100 is connected to the housing 200 and closes the opening 200a. The mainboard 300 is located in the housing 200 and is connected to the component connection structure 311. The battery 400 is located in the housing 200 and is connected to the battery connection structure 312.

[0090] In the related art, taking a mobile phone with a flexible screen module as an example, in a common flexible screen module, the bottom of the flexible screen plays a supporting role by supporting the back plate, and the bottom of the flexible screen module as a whole is fixed to the middle frame through a glue layer, and then the middle frame is connected to the frame of the shell, and the motherboard and the battery are arranged at the bottom of the middle frame. However, due to the pursuit of the thin and light design requirements of mobile phones, the thickness of the mobile phone is designed to be as small as possible, so the thickness of the supporting back plate in the flexible screen module is generally not too thick. For example, for a foldable mobile phone solution, the flexible screen module also needs to meet the foldable function, so the thickness of the supporting back plate is smaller, and the conventional design is 120um~150um. In this conventional design, when the flexible screen module is subjected to a drop ball and extrusion test before installation, there is a problem of insufficient overall rigidity, and the risk of bad pixels in the flexible screen module is high in the later stage, which leads to a short service life of the mobile phone.

[0091] In the display device 1000 of the above technical solution, the support layer 30 of the flexible screen module 100 serves as a structural member supporting the functional layer 20. The thickness of the first section 31 of the support layer 30 is greater than the sum of the thicknesses of the functional layer 20 and the cover layer 10. Therefore, the thickness of the first section 31 is relatively large, and it can have strong rigidity and strength, thereby achieving a better supporting effect, and can improve the overall rigidity and strength of the flexible screen module 100, which is conducive to obtaining better test results in the drop ball and extrusion tests, and reducing the risk of bad pixels and black spots. Moreover, since the main board 300 and the battery 400 are installed on the first section 31, the support layer 30 can provide an installation position for the main board 300 and the battery 400, which is conducive to reducing the number of components in the overall structure of the display device 1000, so that the display device 1000 is thinner in thickness direction (reference Figure 7 and Figure 8 When the thickness of the display device 1000 is determined, there is more space in the housing 200 for arranging the mainboard 300 and the battery 400. For example, when the saved space is used to install the battery 400, the volume of the battery 400 can be increased, thereby improving the battery life of the display device 1000.

[0092] As an example, taking the display device 1000 as a mobile phone, in the display device 1000 of the above structure, the support layer 30 can also serve as the middle frame of the mobile phone structure in the related art, and there is no need to design a separate middle frame in the display device 1000, so that in a mobile phone of the same thickness, more components can be arranged inside the shell 200, or a larger battery 400 can be arranged. For example. In the related art, in the flexible screen module of the mobile phone structure, the thickness of the support back plate is usually 120um, and the thickness of the glue layer between the support back plate and the middle frame is generally 50um. Using the display device 1000 of the above structure as a mobile phone, the support layer 30 can be the same thickness as the middle frame of the related art, for example, 1.8mm to 2.5mm, which is 15 times that of the conventional support back plate, and reduce the thickness of the support back plate and the glue layer, thereby saving space inside the shell 200.

[0093] Since the supporting layer 30 of the flexible screen module 100 has a relatively large thickness and is directly connected to the main board 300 and the battery 400, and the main board 300 and the battery 400 are close to the shell 200, the internal structure of the display device 1000 is more compact, with fewer and smaller gaps, which is also beneficial to improving the overall waterproof performance and strength of the display device 1000.

[0094] Secondly, since the flexible screen module 100 has a support layer 30 with a larger thickness and has better thermal conductivity, the overall heat dissipation performance of the flexible screen module 100 is better. When the display device 1000 adopts the flexible screen module 100, the flexible screen module 100 is one of the core components, which can also improve the reliability of the display device 1000, thereby improving the equipment performance and service life of the display device 1000.

[0095] It should be noted that the display device 1000 of the embodiment of the present invention may be, but is not limited to, a mobile phone, a television, a monitor, a smart watch, a digital photo frame, etc., and no specific limitation is made here.

[0096] According to the display device 1000 of the embodiment of the present invention, since the flexible screen module 100 has high strength and rigidity as a whole, the problem of screen collapse when pressed can be effectively solved, thereby improving the user experience of the display device 1000. The flexible screen module 100 can also integrate the function of connecting the main board 300 and the battery 400, thereby reducing the internal components of the display device 1000, making the internal structure of the display device 1000 more compact, which is conducive to achieving a lightweight design, and improving the strength and waterproof performance of the whole device. It can also optimize the space inside the display device 1000, providing a larger layout space for the battery 400, thereby extending the battery life.

[0097] In some embodiments of the present invention, Figure 8 , Fig. 9 and Fig.12 As shown, there are at least two first sections 31, at least one of the multiple sections is a second section 32, any two adjacent first sections 31 are connected through the second section 32, and the first section 31 is provided with a hinge connection structure 313 close to the second section 32; the display device 1000 includes a hinge 500, which is located in the shell 200 and connected to the hinge connection structure 313.

[0098] That is, the display device 1000 is a foldable device, for example, a foldable mobile phone. Referring to the above, since there are at least two first sections 31, at least one of the multiple sections is a second section 32, any two adjacent first sections 31 are connected by the second section 32, and the second section 32 is provided with a hinge connection structure 313, the display device 1000 can be, but is not limited to, double folding, triple folding, quad folding, etc.

[0099] Since the flexible screen module 100 has strong rigidity as a whole, and the hinge connection structure 313 of the support layer 30 can be directly connected to the hinge 500, the production process of the display device 1000 can be optimized. For example, the production process of a conventional display device is: whole machine middle frame, hinge assembly, screen module assembly, bending test, battery and motherboard assembly, while the production process of the display device 1000 of the present invention can be: flexible screen module 100 assembly, hinge assembly, bending test, frame assembly, battery and motherboard assembly. It can be seen that in the production process of the display device 1000 of the present invention, the hinge 500 can be pre-assembled to the flexible screen module 100 before installation, and the bending test can be directly performed without the need to perform the bending test after the display device 1000 is assembled. In this way, the hinge 500 can be detected in advance, which is conducive to early identification of bending risks and timely rework after problems are found, which can reduce production costs.

[0100] In some embodiments of the present invention, Figure 8 , Fig. 9 and Fig.12 As shown, at least one of the multiple sections is the second section 32, and at least one is the third section 33, the second section 32 is connected to the first section 31, the third section 33 is connected to one end of the first section 31 away from the second section 32, and / or, the third section 33 is connected to the first section 31 and the other end adjacent to the first section 31; the shell 200 includes a connected back cover 210 and a frame 220, the frame 220 is an annular structure arranged circumferentially around the back cover 210, and the frame 220 is connected to the third section 33.

[0101] It is understandable that the support layer 30 can be connected to the frame 220 by providing a separate third section 33 , which can reduce the impact on the first section 31 that plays a supporting role and is beneficial to the fixation of the support layer 30 and the frame 220 .

[0102] In some embodiments of the present invention, Figure 5 , Figures 9 to 11 As shown, the third section 33 is provided with a first connecting hole 33a, the frame 220 is provided with a protrusion 2201 extending toward a side close to the third section 33, the protrusion 2201 is provided with a second connecting hole 2201a, the display device 1000 includes a connecting member 600, the connecting member 600 is provided in the first connecting hole 33a and the second connecting hole 2201a, and the third section 33 and the frame 220 are fixed by adhesive 700.

[0103] The connecting member 600 may be, but is not limited to, a pin, a screw or a bolt, etc. Correspondingly, the first connecting hole 33a and the second connecting hole 2201a may be, but are not limited to, a light hole or a threaded hole, etc. The adhesive 700 may be, but is not limited to, glue, structural reinforcement adhesive, etc. Among them, the third section 33 may be only arranged on the opposite sides of the supporting layer 30, and the four sides of the supporting layer 30 are fixed by the adhesive 700 and the frame 220; the third section 33 may also be arranged on the four sides of the supporting layer 30, and the four sides of the supporting layer 30 are fixed by the adhesive 700 and the frame 220.

[0104] In the above technical solution, the third section 33 and the frame 220 can be fixed by the connecting piece 600, and further fixed by coating with adhesive 700 again, which can improve the connection strength between the supporting layer 30 and the frame 220, thereby making the connection between the flexible screen module 100 and the frame 220 more stable and reliable, and also having a strong waterproof performance.

[0105] In some embodiments of the present invention, Fig.10 and Fig.11 As shown, in the direction from the edge of the supporting layer 30 to the adjacent frame 220 , the protruding size of the protrusion 2201 is less than or equal to the size of the third section 33 .

[0106] Reference Fig.10 and Fig.11 , "the direction in which the edge of the supporting layer 30 points to the adjacent frame 220" can be the left and right direction in the figure, that is, the protruding length of the protrusion 2201 can be less than the protruding length of the third section 33 relative to the first section 31, or, the protruding length of the protrusion 2201 is equal to the protruding length of the third section 33 relative to the first section 31. It can be understood that the protruding length of the protrusion 2201 is smaller, and the supporting layer 30 can be directly fixed on the frame 220 through the first connecting hole 33a, the protrusion 2201, the second connecting hole 2201a and the connecting member 600.

[0107] In some embodiments of the present invention, Fig.10 As shown, the protrusion 2201 has a first surface 2201b facing away from the third section 33, and the first section 31 has a second surface 31a disposed toward the main board 300 and the battery 400, and the second surface 31a and the first surface 2201b are coplanar. It can be understood that, in combination with the foregoing, the protrusion 2201 does not exceed the size of the third section 33 in the left-right direction, and does not exceed the second surface 31a of the first section 31 in the downward direction.

[0108] In some embodiments of the present invention, Figure 12 to Figure 14One of the third section 33 and the frame 220 is provided with a groove 101, and the other is provided with an inserting portion 102. The inserting portion 102 is arranged in the groove 101, and the third section 33 and the frame 220 are fixed by adhesive 700.

[0109] That is, the third section 33 may be provided with a groove 101, and the frame 220 may be provided with a plug-in portion 102; or, the third section 33 may be provided with a plug-in portion 102, and the frame 220 may be provided with a groove 101. The notch of the groove 101 may be provided perpendicular to the side of the frame 220, so that the plug-in portion 102 can be slidably matched with the groove 101, and the use of such a matching structure is conducive to improving positioning accuracy and connection stability.

[0110] Among them, the third section 33 can be only arranged on the opposite sides of the supporting layer 30, and the four sides of the supporting layer 30 are fixed by the adhesive 700 and the frame 220; the third section 33 can also be arranged on the four sides of the supporting layer 30, and the four sides of the supporting layer 30 are fixed by the adhesive 700 and the frame 220.

[0111] In the above technical solution, the third section 33 and the frame 220 can be fixed by the groove 101 and the plug-in portion 102, and further fixed by re-coating with the adhesive 700, which can improve the connection strength between the supporting layer 30 and the frame 220, thereby making the connection between the flexible screen module 100 and the frame 220 more stable and reliable, and also having a strong waterproof performance.

[0112] In some embodiments of the present invention, Figure 7 As shown, the display device 1000 further includes a pressure strip 800, which is connected to the frame 220 and abuts against the cover layer 10. It can be understood that the pressure strip 800 can press the flexible screen module 100 against the frame 220, thereby enhancing the structural stability between the flexible screen module 100 and the housing 200, and improving the waterproof and dustproof performance, and can also protect the edge of the flexible screen module 100, reduce the damage caused by external impact, and improve the overall performance of the display device 1000.

[0113] In some embodiments of the present invention, Figure 7 , Figure 8 , Fig.10 , Fig.11 , Fig.13 and Fig.14 As shown, the pressure strip 800 is provided with a clamping protrusion 800a, and the frame 220 is provided with a fixing groove 220a, and the clamping protrusion 800a is arranged in the fixing groove 220a. It can be understood that the pressure strip 800 can be clamped and matched with the fixing groove 220a of the frame 220 through the clamping protrusion 800a. This connection method is relatively simple and is conducive to the installation or removal of the pressure strip 800.

[0114] Other structures and operations of the flexible screen module 100 and the display device 1000 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0115] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0116] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A flexible screen module, characterized in that: It includes a cover layer, a functional layer and a support layer which are stacked in sequence, the support layer includes a plurality of sections which are connected in sequence, at least one of the plurality of sections is a first section, the length of the first section is greater than or equal to the length of the remaining sections, and the thickness of the first section is greater than or equal to the sum of the thicknesses of the cover layer and the functional layer, and the first section is provided with a component connection structure and / or a battery connection structure.

2. The flexible screen module according to claim 1, characterized in that: The thickness of the first section is t1, and the sum of the thickness of the cover layer and the functional layer is t2, wherein 6≤t1 / t2≤15.

3. The flexible screen module according to claim 1 or 2, characterized in that: The thickness of the first section is t1, wherein 1.8 mm≤t1≤3 mm.

4. The flexible screen module according to claim 1, characterized in that: There are at least two first sections, at least one of the multiple sections is a second section, any two adjacent first sections are connected by the second section, the first section is provided with a hinge connection structure close to the second section, and the thickness of the second section is less than the thickness of the first section.

5. The flexible screen module according to claim 4, characterized in that: The thickness of the second section is t3, and the thickness of the first section is t1, wherein t1 / t3≥15.

6. The flexible screen module according to claim 4, characterized in that: At least one of the multiple segments is a third segment, the third segment is connected to one end of the first segment away from the second segment, and / or, the third segment is connected to the first segment and the other end adjacent to the first segment, and the thickness of the third segment is less than the thickness of the first segment.

7. The flexible screen module according to any one of claims 1, 2, 4 to 6, characterized in that: The material of the support layer is at least one of titanium alloy, aluminum alloy, magnesium alloy and carbon fiber.

8. The flexible screen module according to any one of claims 1, 2, 4 to 6, characterized in that: The component connection structure is integrated on the first section and configured to enable components to be attached to the surface of the first section, and / or the battery connection structure is integrated on the first section and configured to enable batteries to be attached to the surface of the first section.

9. A display device, characterized in that: include: A shell, wherein the shell is provided with an opening; The flexible screen module according to any one of claims 1 to 8, wherein the flexible screen module is connected to the housing and closes the opening, and the first section is provided with a component connection structure and a battery connection structure; A mainboard, the mainboard is located in the housing and connected to the component connection structure; A battery is located in the housing and connected to the battery connection structure.

10. The display device according to claim 9, characterized in that: At least one of the plurality of segments is a second segment, and at least one is a third segment, the second segment is connected to the first segment, the third segment is connected to an end of the first segment away from the second segment, and / or the third segment is connected to the first segment and the other end adjacent to the first segment; The shell includes a connected rear cover and a frame, wherein the frame is an annular structure arranged around the circumference of the rear cover, and the frame is connected to the third section.

11. The display device according to claim 10, characterized in that: The third section is provided with a first connecting hole, the frame is provided with a protrusion extending toward a side close to the third section, the protrusion is provided with a second connecting hole, the display device includes a connecting member, the connecting member is provided in the first connecting hole and the second connecting hole, and the third section and the frame are fixed by adhesive.

12. The display device according to claim 11, characterized in that: In the direction where the edge of the supporting layer points to the adjacent frame, the protruding size of the protruding portion is less than or equal to the size of the third section.

13. The display device according to claim 12, characterized in that: The protrusion has a first surface facing away from the third section, the first section has a second surface disposed toward the mainboard and the battery, and the second surface is coplanar with the first surface.

14. The display device according to claim 10, characterized in that: One of the third section and the frame is provided with a groove, and the other is provided with an inserting portion, the inserting portion is arranged in the groove, and the third section and the frame are fixed by adhesive.

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