Display module and display device

Abstract

The embodiment of the invention provides a display module and a display device, which are applied to the field of display and can reduce rebound force while ensuring the mechanical performance of the display module so as to prolong the service life of the display device and improve the quality of the display device. The display module comprises a first face and a second face which are oppositely arranged, and the display module comprises a main body area and an edge bending area located on at least one side of the main body area. The display module comprises a display panel and a supporting assembly, wherein the display panel is provided with a display surface and a non-display surface which are oppositely arranged; the display surface is close to the first surface relative to the non-display surface; the supporting assembly is located on one side of the non-display surface of the display panel and comprises a supporting layer, and the part, located in the edge bending area, of the supporting layer is provided with a plurality of through holes; the part, located in the edge bending area, of the display module is bent towards the second face.

Description

Technical Field

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

[0002] At present, OLED (Organic Light-Emitting Diode) display devices are widely used due to their characteristics of self-luminescence, fast response, wide viewing angle, bendability and ability to be manufactured on flexible substrates. With the development of display technology, the technical application of the bendable characteristics of OLED has become one of the current development trends. Summary of the invention

[0003] The purpose of the embodiments of the present disclosure is to provide a display module and a display device, which can reduce the rebound force of the display module and thereby improve the life and quality of the display device.

[0004] To achieve the above objectives, the embodiments of the present disclosure provide the following technical solutions:

[0005] The first aspect of the present disclosure provides a display module. The display module includes a first surface and a second surface arranged opposite to each other, and the display module includes a main body area and an edge bending area located on at least one side of the main body area. The display module includes a display panel and a support component, wherein the display panel has a display surface and a non-display surface arranged opposite to each other, and the display surface is closer to the first surface relative to the non-display surface. The support component is located on the non-display surface side of the display panel, and the support component includes a support layer, and the portion of the support layer located in the edge bending area has a plurality of through holes. The portion of the display module located in the edge bending area is bent toward the second surface.

[0006] In the display modules provided by some embodiments of the present disclosure, since the portion of the support layer located in the edge bending zone has a plurality of through holes, during the process of bending the portion of the display module located in the edge bending zone toward the second surface, on the one hand, the mechanical properties of the display module, such as impact resistance, can be guaranteed to the greatest extent; on the other hand, the rebound force of the display module in the edge bending zone can be reduced, thereby preventing breakage during the bending process, thereby improving the service life and quality of the display module.

[0007] In some embodiments, the edge bending zone extends along the second direction, and the multiple through holes are arranged into N rows of through holes, each row of through holes includes multiple through holes arranged along the second direction; along the first direction, the number of through holes included in each row of through holes from the first row of through holes to the nth row of through holes gradually decreases, and the size of each row of through holes in the second direction gradually increases, the first direction is the direction of the edge bending zone away from the main area, the second direction is perpendicular to the first direction, n≤N.

[0008] In some embodiments, the through holes in a row of through holes have the same size in the second direction.

[0009] In some embodiments, a distance between two adjacent through holes in a row of through holes is a constant value.

[0010] In some embodiments, the through holes in two adjacent rows of through holes are staggered.

[0011] In some embodiments, the plurality of through holes are in a rectangular, trapezoidal, circular or elliptical shape.

[0012] In some embodiments, the portion of the first surface of the display module located in the main body area is a plane, the portion located in the edge bending area is a curved surface, and the angle between the tangent of the point farthest from the main body area of ​​the portion of the first surface located in the edge bending area and the first surface located in the main body area is 20° to 60°.

[0013] In some embodiments, the display module includes edge bending areas respectively located on opposite sides of the main body area, the main body area includes a first main body area, a second main body area and an outer folding area located between the first main body area and the second main body area, the display module can be folded toward the second surface at the outer folding area, the angle between the part of the display module located in the first main body area and the part located in the second main body area is 0° to 180°, and the extension direction of the outer folding area is consistent with the extension direction of the edge bending area.

[0014] In some embodiments, the area ratio of the edge bending region to the main region is 1:9.

[0015] In some embodiments, the display module further includes a flexible glass, wherein the flexible glass is located on a display surface side of the display panel, and a thickness of the flexible glass is smaller than a thickness of the display panel.

[0016] In some embodiments, the display module also includes: a covering layer arranged on the side of the flexible glass away from the display panel; a protective film arranged on the side of the flexible glass close to the display panel; a first adhesive layer arranged between the covering layer and the flexible glass; a second adhesive layer arranged between the flexible glass and the protective film; and a third adhesive layer arranged between the protective film and the display panel; wherein the dimensions of the first adhesive layer and the second adhesive layer in the first direction are smaller than the dimension of the flexible glass in the first direction, and the dimension of the third adhesive layer in the first direction is smaller than or equal to the dimension of the display panel in the first direction.

[0017] In some embodiments, the supporting assembly further includes: a supporting backplane disposed on the non-display surface side of the display panel; a fourth adhesive layer disposed between the supporting backplane and the supporting layer; wherein the supporting backplane, the fourth adhesive layer and the supporting layer coincide with the orthographic projection of the display panel.

[0018] In some embodiments, the supporting assembly further includes: a first protective layer and a second protective layer, the first protective layer being located on a side of the supporting layer away from the display panel, the second protective layer being located on a side of the first protective layer away from the display panel, and the orthographic projections of the first protective layer and the second protective layer on the display panel being located in the main area.

[0019] A second aspect of the present disclosure provides a display device, which includes a display module and a driving chip as described in any of the above embodiments, wherein the driving chip is electrically connected to a display panel of the display module.

[0020] The beneficial effects of the above-mentioned display device are the same as the beneficial effects of the display panel provided by any embodiment of the first aspect of the present disclosure, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0022] Figure 1 is a planar structural diagram of a display device according to some embodiments of the present disclosure;

[0023] Figure 2A is a partial three-dimensional structural diagram of a display device according to some embodiments of the present disclosure;

[0024] Figure 2B is a cross-sectional structural diagram of a display device according to some embodiments of the present disclosure;

[0025] Figure 3 Some embodiments of the present disclosure provide Figure 2B A partially enlarged stacking structure diagram of the edge position in the figure;

[0026] Figure 4 A partial planar structural diagram of a support layer in a display module provided in some embodiments of the present disclosure;

[0027] Figure 5 Some embodiments of the present disclosure provide Figure 4 A local enlarged structural diagram of the C region;

[0028] Figure 6 A structural diagram of a display module provided by some embodiments of the present disclosure after an edge bending area is bent;

[0029] Fig. 7A A planar unfolded structural diagram of a display device provided in some embodiments of the present disclosure;

[0030] Figure 7B A folding structure diagram of a display device provided in some embodiments of the present disclosure;

[0031] Figure 7C Another folding structure diagram of a display device provided in some embodiments of the present disclosure;

[0032] Figure 8 A stacking structure diagram of a display module provided in some embodiments of the present disclosure;

[0033] Fig. 9 Some embodiments of the present disclosure provide Figure 1 FIG. 4 is a diagram showing a connection structure between a driving chip and a display panel of a display device obtained by making a cross section along the cross section line DD. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present disclosure.

[0035] Unless the context requires otherwise, throughout the specification and claims, the term "including" is to be interpreted as an open, inclusive meaning, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0036] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0037] When describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. The term "coupled" indicates, for example, that two or more components are in direct physical or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0038] “At least one of A, B, and C” has the same meaning as “at least one of A, B, or C” and both include the following combinations of A, B, and C: A only, B only, C only, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C.

[0039] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0040] The use of "adapted to" or "configured to" herein is meant to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0041] Additionally, the use of “based on” is meant to be open and inclusive, as a process, step, calculation, or other action “based on” one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0042] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of variation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0043] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within the acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism may be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity may also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality may be, for example, the difference between the two equalities is less than or equal to 5% of either one.

[0044] It will be understood that when a layer or an element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present between the layer or element and the other layer or substrate.

[0045] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of the layers and the area of ​​the regions are exaggerated for clarity. Therefore, variations in the shapes relative to the drawings due to, for example, manufacturing techniques and / or tolerances are conceivable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but include shape deviations due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device, and are not intended to limit the scope of the exemplary embodiments.

[0046] At present, OLED display is developing rapidly. Its advantages over other display devices, such as self-luminescence and bendability, have also allowed it to quickly occupy the market. However, due to the continuous development of external folding products, the original flat folding products can no longer meet the customer's overall appearance design needs. In the half-screen display scene after the external folding product is folded, customers try to adopt the waterfall screen design in the straight-plate mobile phone, and design a fixed curvature at the edge to make the external folding product look smoother and more atmospheric after folding, and feel more comfortable to hold. However, due to the excessive rebound force at the edge area of ​​the external folding product, it is easy to cause breakage, affecting the life and quality of the display module.

[0047] Based on this, some embodiments of the present disclosure provide a display module and a display device, which reduce the rebound force of the display module in the edge area and improve the fracture phenomenon by changing the internal structure of the film layer of the display module, thereby improving the life and quality of the display module.

[0048] The display module and the display device provided by the present disclosure are respectively introduced below.

[0049] like Figure 1 As shown, some embodiments of the present disclosure provide a display device 1000. The display device provided by the embodiments of the present disclosure can be any device that displays whether it is moving (e.g., video) or fixed (e.g., still image) and whether it is text or image. More specifically, it is expected that the embodiments can be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (English: Personal Digital Assistant, referred to as: PDA), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, cameras, game consoles, watches, clocks, calculators, TV monitors, flat panel displays, computer monitors, car displays (e.g., odometer displays, etc.), navigators, cockpit controllers and / or displays, displays of camera views (e.g., displays of rear-view cameras in vehicles), electronic photos, electronic billboards or signs, projectors, architectural structures, packaging and aesthetic structures (e.g., displays of images of a piece of jewelry), and any products or components with display functions.

[0050] The display device 1000 may be any one of a flat display device, a curved display device, a foldable display device or a rollable display device.

[0051] The following takes the above-mentioned display device 1000 as a foldable display device as an example to schematically illustrate some embodiments of the present disclosure, but the implementation of the present disclosure is not limited to this, and any other display device 1000 can also be considered as long as the same technical concept is applied.

[0052] Among them, the foldable display device 1000 includes an inner folding display device and an outer folding display device. In the embodiments of the present disclosure, the outer folding display device is mainly used as an example for exemplary description.

[0053] like Figure 1 , Figure 2A and Figure 2B As shown, the display device 1000 includes a display module 100. The display module 100 includes a first surface 100a and a second surface 100b disposed opposite to each other, and the display module 100 includes a main body area AA and an edge bending area BB located at least on one side of the main body area AA. Figure 3As shown, the display module 100 includes a display panel 10 and a support assembly 20. The display panel 10 has a display surface 10a and a non-display surface 10b that are arranged opposite to each other. The display surface 10a is closer to the first surface 10a than the non-display surface 10b. The support assembly 20 is located on the side of the non-display surface 10b of the display panel 10. The support assembly 20 includes a support layer 21, such as Figure 4 As shown, the portion of the support layer 21 located in the edge bending area BB has a plurality of through holes 211. Figure 2A and Figure 2B As shown, the portion of the display module 100 located in the edge bending area BB is bent toward the second surface 100 b.

[0054] It should be noted that the first direction X is the direction from the main area to the edge bending area, the second direction Y is the extension direction of the edge bending area, and the third direction Z is the thickness direction of the display module. The first direction X and the second direction Y are perpendicular, and the first direction X and the third direction Z are perpendicular.

[0055] In some examples, such as Figure 1 and Figure 2B As shown, the display module 100 may include a main body area AA and edge bending areas BB located on both sides of the main body area AA. Exemplarily, the two edge bending areas BB may be symmetrically arranged about the main body area AA, so that after the edge bending areas BB of the display module 100 are bent, the ends of the two edge bending areas BB away from the first surface 100a of the display module 100 are flush.

[0056] It should be noted that both the main area AA and the edge bending area BB of the display module 100 can be used for display. Figure 2B As shown, the first surface 100a is a plane in the main area AA and a curved surface in the edge bending area BB, that is, the display module 100 extends from the main area AA to both sides, transitioning from a plane to a curved surface, and the edge bending area BB has a set curvature, which can further compress the border of the display module 100, have a higher screen-to-body ratio, and a better display effect.

[0057] Among them, the portion of the display module 100 located in the edge bending area BB is bent toward the second surface 100b, which means that at least the portions of the display panel 10 and the supporting component 20 located in the edge bending area BB are bent toward the second surface 100b, wherein the display panel 10 is, for example, a flexible display panel, and the supporting component 20 is used to provide support for the display panel, and therefore it is necessary to have a certain supporting force and deformation force at the same time.

[0058] The above-mentioned portion of the support layer 21 located in the edge bending area BB is provided with multiple through holes, that is, the partial area of ​​the support layer located in the edge bending area is removed to form a hollow structure. In the process of bending the edge bending area BB of the display module 100 toward the second surface 100b, on the one hand, the support layer 21 can ensure the mechanical strength of the display module 100 to the greatest extent. At the same time, on the other hand, the provision of through holes can change the physical properties of the support layer 21 located in the edge bending area BB, reduce the elastic modulus, and further reduce the rebound force of the display module 100 in the edge bending area BB, thereby preventing breakage during the bending process and improving the service life and quality of the display module.

[0059] For example, the material of the support layer 21 may include at least one of stainless steel, aluminum or copper. The support layer of the metal material may be etched into a plurality of through-hole patterns by an etching process.

[0060] The display panel 10 may be: an organic light emitting diode display panel, a quantum dot light emitting diode display panel, a micro light emitting diode display panel, a liquid crystal display panel, a plasma display panel, a field emission display panel, an electrowetting display panel or an electrophoretic display panel, etc., and the embodiments of the present disclosure are not specifically limited here.

[0061] The following takes the above-mentioned display panel 10 as an organic light emitting diode display panel as an example to schematically illustrate some embodiments of the present disclosure, but the implementation of the present disclosure is not limited to this, and any other display panel can also be considered as long as the same technical concept is applied.

[0062] In some embodiments, Figure 2B and Figure 3 As shown, the display panel 10 has a display surface 10a and a non-display surface 10b which are arranged opposite to each other. It should be noted that the display surface 10a refers to the side of the display panel 10 displaying an image, and the non-display surface 10b refers to the other side opposite to the display surface 10a. The display surface 10a is closer to the first surface 100a than the non-display surface 10b, that is, the first surface 100a of the display module 100 is also used to display an image, and the second surface 100b of the display module is the back side of the display module 100. The portion of the display module 100 located in the edge bending area BB is bent toward the second surface 100b, that is, the edge bending area BB is bent toward the back side of the display module 100.

[0063] In some examples, such as Figure 4 and Figure 5 As shown, Figure 5 for Figure 4A partial enlarged view of the C region. The edge bending area BB extends along the second direction Y, and a plurality of through holes 211 are arranged into N rows of through holes, and each row of through holes 211 includes a plurality of through holes 211 arranged along the second direction Y. Along the first direction X, the number of through holes 211 included in each row of through holes 211 from the first row of through holes 211 to the nth row of through holes 211 gradually decreases, and the size of each row of through holes 211 in the second direction Y gradually increases, wherein the first direction X is the direction from the main body area AA to the edge bending area BB, and the second direction Y is perpendicular to the first direction, and n≤N.

[0064] It can be understood that along the first direction X, that is, along the direction from the main area AA to the edge bending area BB, the number of through holes 211 included in each row of through holes 211 gradually decreases, that is, the number of through holes 211 included from the first row of through holes 211 to the nth row of through holes 211 is arranged from dense to sparse as a whole, wherein n≤N, that is, when n is less than N, the number of through holes 211 included in each row of through holes 211 from the first row of through holes 211 to the nth row of through holes 211 gradually decreases, and the number of through holes 211 included in each row of through holes 211 from the n+1th row of through holes 211 to the Nth row of through holes 211 can remain unchanged; when n is equal to N, the number of through holes 211 included in each row of through holes 211 from the first row of through holes 211 to the nth row of through holes 211 gradually decreases.

[0065] By setting the numbers of through holes 211 in different rows of the edge bending zone BB to be different, an arrangement from dense to sparse is presented. On the one hand, the edge bending zone BB can have a certain buffering force while bending, which is equivalent to playing a transition role, and the bending angle of the edge bending zone BB can be controlled within a specified range; on the other hand, the above arrangement method can change the physical properties of the supporting layer in the edge bending zone BB, thereby reducing its elastic modulus, and ultimately, while ensuring the impact resistance of the display module 100, it can further ensure that the rebound force of the edge bending zone BB is controlled within a reasonable range, thereby preventing the phenomenon of breakage due to excessive rebound force.

[0066] In some embodiments, reference Figure 5 , the sizes of the through holes 211 in a row of through holes 211 in the second direction Y are the same.

[0067] For example, refer to Figure 5In the first row of through holes 211 located in the edge bending area BB, the size of each through hole 211 in the second direction Y is the same, and is L1; in the nth row of through holes 211 located in the edge bending area BB, the size of each through hole 211 in the second direction Y is the same, and is Ln, wherein L1<Ln; in the Nth row of through holes 211 located in the edge bending area BB, the size of each through hole 211 in the second direction Y is the same, and is LN, wherein Ln≤LN.

[0068] In some embodiments, continue to refer to Figure 5 , the distance between two adjacent through holes 211 in a row of through holes 211 is a constant value.

[0069] For example, Figure 5 As shown, in the first row of through holes 211 located in the edge bending area BB, the spacing between two adjacent through holes 211 in the second direction Y is the same, and is s1; in the nth row of through holes 211 located in the edge bending area BB, the spacing between two adjacent through holes 211 in the second direction Y is the same, and is sn; in the Nth row of through holes 211 located in the edge bending area BB, the spacing between two adjacent through holes 211 in the second direction Y is the same, and is sN, wherein the relationship between the three can be s1=sn=sN, or s1<sn<sN, and there is no limitation on the spacing between two adjacent through holes 211 in different rows.

[0070] In some embodiments, continue to refer to Figure 5 , the through holes in two adjacent rows of through holes 211 are staggered.

[0071] For example, Figure 5 As shown, among the N rows of through holes 211, the through holes 211 in any two adjacent rows of through holes 211 are arranged in a staggered manner, that is, for example, the two ends of any through hole 211 in the first row of through holes 211 are not flush with the two ends of any through hole 211 in the second row of through holes 211 in the first direction X. This arrangement, on the one hand, can ensure that the rebound force of the edge bending area BB is controlled within a reasonable range to further prevent fracture, and on the other hand, can improve the supporting force to prevent the stress generated in the direction perpendicular to the supporting layer 21 from being too large, resulting in insufficient supporting force, thereby affecting the normal display of the display module.

[0072] In some embodiments, the shapes of the plurality of through holes 211 are rectangular, trapezoidal, circular or elliptical.

[0073] It should be noted that the through holes 211 here can be set to different shapes, refer to Figure 5As shown, the through holes 211 are all rectangular in shape, for example, the through holes are long strip holes. The above only gives an example of the shape of the through holes 211, and the shape of the through holes 211 can also be trapezoidal, circular or elliptical, etc., which is not limited here.

[0074] In this article, "the shape is rectangular, trapezoidal, circular or elliptical" means that the shape is rectangular, trapezoidal, circular or elliptical as a whole, but is not limited to a standard rectangle, trapezoidal, circular or elliptical. That is, the "rectangle, trapezoidal, circular or elliptical" here includes not only a basic circular or elliptical shape, but also a shape similar to a rectangle, trapezoidal, circular or elliptical. For example, the long side and the short side of the rectangle are curved at each intersection (i.e., the corners), that is, the corners are smooth, and the shape is a rounded rectangle.

[0075] In some embodiments, reference Figure 6 The portion of the first surface 100a of the display module 100 located in the main area AA is a plane, and the portion located in the edge bending area BB is a curved surface. The angle between the tangent of the point farthest from the main area AA of the portion of the first surface 100a located in the edge bending area BB and the first surface 100a located in the main area AA is 20° to 60°.

[0076] For example, Figure 6 As shown, the point farthest from the main body area AA of the first surface 100a of the display module 100 located in the edge bending area BB is point O, and the tangent of point O is tangent P, wherein the angle between the tangent P and the first surface 100a located in the main body area AA is α, and the angle α is 20° to 60°. The range of angle α is set to ensure that the fixed curvature of the display module 100 can be within a reasonable range and can meet the appearance requirements of the display device, so that the overall appearance is smoother, more atmospheric, and more comfortable to hold.

[0077] In some embodiments, Figure 7A to Figure 7C As shown, the display module 100 includes edge bending areas BB respectively located on two opposite sides of the main area AA, the main area AA includes a first main area A1, a second main area A2 and an outer folding area A3 located between the first main area A1 and the second main area A2, the display module 100 can be folded toward the second surface 100b at the outer folding area A3, and the angle between the portion of the display module 100 located in the first main area A1 and the portion located in the second main area A2 is 0°~180°, and the extension direction of the outer folding area A3 is consistent with the extension direction of the edge bending area BB.

[0078] It is understandable that if Figure 7A to Figure 7CAs shown, the main body area AA includes a first main body area A1 and a second main body area A2 located on both sides of the outer folding area A3, and the display module 100 can be folded toward the second surface 100b at the outer folding area A3. The first main body area A1 and the second main body area A2 can be symmetrically arranged with respect to the outer folding area A3, so that after the display module 100 is folded, the first main body area A1 and the second main body area A2 are flush with each other at one end away from the outer folding area A3. In addition, as Figure 7C As shown, the folded first main body area A1 and the second main body area A2 are stacked back to back.

[0079] It should be noted that, during the folding process of the display module 100, the outer folding area A3 is bent, and the first main area A1 and the second main area A2 remain flat. When the angle between the portion of the display module 100 located in the first main area A1 and the portion located in the second main area A2 is 0° or 180°, respectively, Figure 7C and Fig. 7A As shown, the first surface 100a of the main body area AA is a plane; when the angle between the portion of the display module 100 located in the first main body area A1 and the portion located in the second main body area A2 is greater than 0° and less than 180°, as shown in FIG. Figure 7B As shown, the first surface 100a of the main body area AA is a folding surface. It can be understood that the outer folding area A3, the first main body area A1 and the second main body area A2 are divided into regions based on whether deformation occurs during the bending process of the display module 100, and the structures of the two can be the same.

[0080] In some embodiments, Fig. 7A As shown, the area ratio of the edge bending area BB to the main area AA is 1:9.

[0081] It should be noted that the area of ​​the edge bending area BB here refers to the sum of the areas of the edge bending areas BB located on both sides of the main area AA. Setting the area ratio can better enhance the user experience and improve the appearance performance of the display device.

[0082] In some embodiments, reference Figure 8 The display module 100 further includes a flexible glass 30 . The flexible glass 30 is located on one side of the display surface 10 a of the display panel 10 . The thickness of the flexible glass 30 is less than the thickness of the display panel 10 .

[0083] It should be noted that the flexible glass 30 is located on the display surface 10a side of the display panel 10. When an object collides with the display module 100 or the display module 100 collides with the ground, the object will first collide with the flexible glass 90 instead of touching the display panel 10. In this way, the flexible glass 90 can reduce the risk of objects outside the display module 100 directly colliding with the display panel 10 and causing damage to the display panel 10.

[0084] For example, the thickness of the flexible glass 30 is set to be smaller than the thickness of the display panel 10 in order to ensure that the display module located in the edge bending area BB has a lower rebound force and prevent the display device from breaking during the manufacturing process. For example, the thickness of the flexible glass 30 is 40 μm, and the thickness of the display panel 10 is 43 μm.

[0085] In some embodiments, continue to refer to Figure 8 The display module 100 further includes a covering layer 40, a protective film 50, a first adhesive layer 60, a second adhesive layer 70 and a third adhesive layer 80. The covering layer 40 is disposed on the side of the flexible glass 30 away from the display panel 10; the protective film 50 is disposed on the side of the flexible glass 30 close to the display panel 10; the first adhesive layer 60 is disposed between the covering layer 40 and the flexible glass 30; the second adhesive layer 70 is disposed between the flexible glass 30 and the protective film 50; and the third adhesive layer 80 is disposed between the protective film 50 and the display panel 10. The dimensions of the first adhesive layer 60 and the second adhesive layer 70 in the first direction X are smaller than the dimensions of the flexible glass 30 in the first direction X, and the dimensions of the third adhesive layer 80 in the first direction X are smaller than or equal to the dimensions of the display panel 10 in the first direction X.

[0086] For example, refer to Figure 8 , the display panel 10 is located on the side of the display surface 10a and is sequentially stacked with a third adhesive layer 80, a protective film 50, a second adhesive layer 70, a flexible glass 30, a first adhesive layer 60 and a cover layer 40, wherein the dimension L3 of the first adhesive layer 60 and the second adhesive layer 70 in the first direction X is set to be smaller than the dimension L4 of the flexible glass 30 in the first direction X, for example, the difference range between L4 and L3 is less than 0.2 mm, within this range, it is possible to prevent the material in the first adhesive layer 60 and the second adhesive layer 70 from overflowing and affecting the preparation of the display module 100. Similarly, the dimension L5 of the third adhesive layer 80 in the first direction X is set to be smaller than or equal to the dimension L6 of the display panel 10 in the first direction X, which can ensure that while increasing the bonding area, the material of the third adhesive layer 80 can also be prevented from overflowing.

[0087] Exemplarily, the material of the cover layer 40 includes a transparent polyimide film (English: Colorless Polyimide, abbreviated: CPI) or polyethylene terephthalate (English: Polyethylene terephthalate, abbreviated: PET). When an object collides with the display module 100 or the display module 100 collides with the ground, the object or the ground will first hit the cover layer 40 and will not hit the flexible glass 30. In this way, the cover layer 40 can reduce the risk of objects outside the display module 100 directly hitting the flexible glass 30 and causing damage to the flexible glass 30.

[0088] For example, the protective film 50 is disposed on the side of the flexible glass 30 close to the display panel 10, mainly for buffering and shock resistance, so as to improve the impact resistance of the display module 100 and reduce the risk of aging of organic materials in the display panel 10. The material of the protective film 50 may include an optical PET film.

[0089] Exemplarily, the first adhesive layer 60 is located between the cover layer 40 and the flexible glass 30, and is configured to bond the cover layer 40 and the flexible glass 30. The second adhesive layer 70 is located between the flexible glass 30 and the protective film 50, and is configured to bond the protective film 50 and the flexible glass 30. The third adhesive layer 80 is located between the display panel 10 and the protective film 50, and is configured to bond the display panel 10 and the protective film 50. The materials of the first adhesive layer 60, the second adhesive layer 70, and the third adhesive layer 80 may be the same, for example, optically clear adhesive (OCA) or pressure sensitive adhesive (PSA).

[0090] In some embodiments, continue to refer to Figure 8 The support assembly 20 further includes a support backplane 22 and a fourth adhesive layer 23. The support backplane 22 is disposed on the non-display surface 10b side of the display panel 10; the fourth adhesive layer 23 is disposed between the support backplane 22 and the support layer 21; wherein the support backplane 22, the fourth adhesive layer 23 and the support layer 21 overlap in their orthographic projection on the display panel 10.

[0091] For example, refer to Figure 8 The supporting back plate 22, the fourth adhesive layer 23 and the supporting layer 21 all have a supporting function. When a force is applied to the upper part thereof, the supporting function can prevent the applied area from deforming due to the force, and further prevent the device damage caused by deformation. The supporting back plate 22, the fourth adhesive layer 23 and the supporting layer 21 are arranged so that their orthographic projections on the display panel 10 overlap, which can not only increase the supporting force, but also increase the bonding area between the supporting back plate 22 and the supporting layer, making the bonding between the supporting back plate 22 and the supporting layer more firmly.

[0092] In some embodiments, Figure 8 As shown, the supporting assembly 20 further includes a first protective layer 24 and a second protective layer 25. The first protective layer 24 is located on the side of the supporting layer 21 away from the display panel 10, and the second protective layer 25 is located on the side of the first protective layer 24 away from the display panel 10. The orthographic projections of the first protective layer 24 and the second protective layer 25 on the display panel 10 are located in the main area AA.

[0093] Exemplarily, the material of the first protective layer 24 includes, for example, a fluorinated ethylene propylene copolymer layer (FEP for short), and the material of the second protective layer 25 may be a titanium alloy. The materials of the first protective layer 24 and the second protective layer 25 are relatively light and thin, which can reduce the weight of the support assembly 20, thereby reducing the weight of the display module 100, and is conducive to the thinness of the display device 1000. Among them, the orthographic projection of the first protective layer 24 and the second protective layer 25 on the display panel 10 is located in the main body area AA, for example, the first protective layer 24 and the second protective layer 25 are located in the entire main body area AA, that is, the boundary of the first protective layer 24 and the second protective layer 25 in the first direction X coincides with the boundary of one side of the edge bending area BB, and the first protective layer 24 and the second protective layer 25 have a certain supporting effect in the main body area AA, and can also play a certain stress buffering role in the preparation process of the edge bending area BB.

[0094] Some embodiments of the present disclosure further provide a display device 1000, such as Fig. 9 As shown, the display device 1000 includes a display module 100 and a driving chip 200, and the driving chip 200 is electrically connected to the display panel 10 of the display module 100. The driving chip 200 is configured to provide a driving signal to the display module 100 to control the display of the display module 100.

[0095] In some embodiments, Fig. 9 As shown, the display panel 10 is a flexible display panel, and the display module 100 is electrically connected to the driving chip 200 by bending the flexible display panel. The display panel 10 is bent to the area on the second surface 100b of the display module 100 and is electrically connected to the driving chip 200.

[0096] Here, the driver chip 200 includes at least one of microchips such as a source driver chip, a touch control chip, a timing controller, and a gamma circuit, which is not specifically limited in the embodiments of the present disclosure.

[0097] In some embodiments, the driver chip 200 further includes a packaging layer on the side away from the display panel 10 , which can block water vapor and oxygen and has a certain protective effect on the driver chip 200 .

[0098] In some embodiments, the display device 1000 further includes components such as a camera, various sensors, and a speaker. Figure 1 A camera hole 111 and a photosensitive hole 112 are sequentially arranged along the first direction X on one side of the main area AA of the display module 100 close to the edge bending area BB.

[0099] It should be noted that in order to achieve full-screen display, it is necessary to integrate a photosensitive component under the display panel 10, and the photosensitive component collects light from the front of the display panel 10. The photosensitive component is, for example, a camera, and illustratively, the position of the photosensitive component corresponds to the position of the camera hole; accordingly, this technology is the under-screen camera technology; the photosensitive component is, for example, a fingerprint sensor, and the position of the fingerprint sensor corresponds to the position of the photosensitive hole, and accordingly, this technology is the under-screen fingerprint recognition technology.

[0100] Some embodiments of the present disclosure provide a display device 1000, which may be, for example, a mobile phone, a tablet computer, a personal digital assistant (PDA), a car computer, a wearable display device, etc. The embodiments of the present disclosure do not impose any particular restrictions on the specific form of the above display device. Figure 1 As shown, the display device 1000 includes the display panel 10 provided by any of the above embodiments. Therefore, the display device 1000 provided by the present invention has all the beneficial effects of the display panel 10 provided by any of the above embodiments, which will not be described in detail here.

[0101] The performance indicators of the above-mentioned display device 1000 can meet the following requirements: when the temperature is -20°C, the display device 1000 can be bent for more than or equal to 20,000 times. When the temperature is 25°C, the display device 1000 can be bent for more than or equal to 300,000 times. When the temperature is 85°C, the display device 1000 can be bent for more than or equal to 20,000 times. In the test of pen drop performance, the height of the pen drop can be reduced to 2 cm, and under normal temperature conditions, without affecting the mechanical properties of the display device 1000, the rebound force of the edge bending area BB can be reduced to 4N to 4.2N.

[0102] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0103] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A display module, characterized in that: The display module comprises a first surface and a second surface arranged opposite to each other, the display module comprises a main body area and an edge bending area located at at least one side of the main body area; the display module comprises: The display panel has a display surface and a non-display surface that are arranged opposite to each other; the display surface is closer to the first surface than the non-display surface; A support component is located on a non-display surface side of the display panel, the support component comprises a support layer, and a portion of the support layer located in the edge bending area has a plurality of through holes; A portion of the display module located in the edge bending area is bent toward the second surface.

2. The display module according to claim 1, characterized in that: The edge bending area extends along the second direction, the plurality of through holes are arranged into N rows of through holes, and each row of through holes includes a plurality of through holes arranged along the second direction; Along the first direction, the number of through holes included in each row of through holes from the first row of through holes to the nth row of through holes gradually decreases, and the size of each row of through holes in the second direction gradually increases, the first direction is the direction from the main area to the edge bending area, the second direction is perpendicular to the first direction, n≤N.

3. The display module according to claim 2, characterized in that: The through holes in a row of through holes have the same size in the second direction.

4. The display module according to claim 2, characterized in that: The distance between two adjacent through holes in a row of through holes is a constant value.

5. The display module according to claim 2, characterized in that: The through holes in two adjacent rows of through holes are arranged in a staggered manner.

6. The display module according to any one of claims 1 to 5, characterized in that: The plurality of through holes are in a rectangular, trapezoidal, circular or elliptical shape.

7. The display module according to any one of claims 1 to 5, characterized in that: The first surface of the display module located in the main area is a plane, and the portion located in the edge bending area is a curved surface. The angle between the tangent of the point farthest from the main area of ​​the first surface located in the edge bending area and the first surface located in the main area is 20° to 60°.

8. The display module according to any one of claims 1 to 5, characterized in that: The display module includes edge bending areas respectively located on two opposite sides of the main area, the main area includes a first main area, a second main area and an outer folding area located between the first main area and the second main area, the display module can be folded toward the second surface at the outer folding area, the angle between the part of the display module located in the first main area and the part located in the second main area is 0° to 180°, and the extension direction of the outer folding area is consistent with the extension direction of the edge bending area.

9. The display module according to any one of claims 1 to 5, characterized in that: The area ratio of the edge bending area to the main area is 1:

9.

10. The display module according to any one of claims 1 to 5, characterized in that: The display module further includes a flexible glass, which is located on a display surface side of the display panel, and a thickness of the flexible glass is smaller than a thickness of the display panel.

11. The display module according to claim 10, characterized in that: The display module also includes: A covering layer disposed on a side of the flexible glass away from the display panel; A protective film disposed on a side of the flexible glass close to the display panel; A first adhesive layer disposed between the cover layer and the flexible glass; A second adhesive layer disposed between the flexible glass and the protective film; a third adhesive layer disposed between the protective film and the display panel; The sizes of the first adhesive layer and the second adhesive layer in the first direction are smaller than the size of the flexible glass in the first direction, and the size of the third adhesive layer in the first direction is smaller than or equal to the size of the display panel in the first direction.

12. The display module according to claim 11, characterized in that: The support assembly also includes: A supporting back plate disposed on a non-display surface side of the display panel; a fourth adhesive layer disposed between the supporting back plate and the supporting layer; The orthographic projections of the supporting back plate, the fourth adhesive layer and the supporting layer on the display panel overlap.

13. The display module according to claim 12, characterized in that: The support assembly also includes: A first protective layer and a second protective layer, the first protective layer is located on the side of the support layer away from the display panel, the second protective layer is located on the side of the first protective layer away from the display panel, and the orthographic projections of the first protective layer and the second protective layer on the display panel are located in the main area.

14. A display device, characterized in that: include: The display module according to any one of claims 1 to 13; A driving chip is electrically connected to the display panel of the display module.

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