A display module, its manufacturing method, and a display device.

Abstract

This application discloses a display module and its manufacturing method, as well as a display device, comprising: a display panel and a polarizing layer stacked together, the display panel including a display area and a bending area, the orthographic projection of the polarizing layer on the display panel at least covering the display area; a stress neutralizing layer disposed on the display panel near the polarizing layer, the orthographic projection of the stress neutralizing layer on the display panel at least covering the bending area; wherein the polarizing layer has a plurality of flow guiding portions on the side near the stress neutralizing layer, and the stress neutralizing layer at least fills a portion of the flow guiding portions. This can improve the bending performance of the display panel and prevent delamination or breakage during bending.

Description

Technical Field

[0001] This application generally relates to the field of display technology, and specifically to a display module and its manufacturing method, and a display device. Background Technology

[0002] With the development of information technology, mobile phones and other display devices have become indispensable tools in people's lives, and "full-screen" displays have become the pursuit of more and more users. However, the "full-screen" display devices touted by the industry are simply those with an ultra-high screen-to-body ratio. To achieve a full-screen display effect, the non-display area is typically bent, meaning the non-display area is bent to the back of the display panel, thus reducing the screen bezel width and increasing the screen-to-body ratio.

[0003] When the non-display area of ​​a display panel is bent, stress concentration can easily occur in the bending area. Traditionally, to address this issue, a stress-neutralizing layer is formed on the bending area of ​​the display panel to alleviate the bending stress.

[0004] However, since the adhesive coating of the stress neutralizing layer is flush with the polarizing layer, the adhesive will be adsorbed onto the polarizing layer due to the siphon effect. Furthermore, due to the fluidity of the adhesive, it will cause stacking at the contact point with the polarizing layer. The stacked area will experience the greatest stress when bent, making it prone to bending, delamination, and breakage. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a display module and its manufacturing method, and a display device, which can improve the bending performance of the display panel and prevent bending delamination or breakage.

[0006] On the one hand, this application provides a display module, including:

[0007] A display panel and a polarizing layer are stacked together. The display panel includes a display area and a bending area. The orthogonal projection of the polarizing layer onto the display panel at least covers the display area.

[0008] A stress neutralizing layer is disposed on the side of the display panel near the polarizing layer, and the orthographic projection of the stress neutralizing layer on the display panel at least covers the bending area.

[0009] The polarizing layer has multiple flow guides on the side near the stress neutralizing layer, and the stress neutralizing layer at least partially fills the flow guides.

[0010] Optionally, the stress neutralizing layer includes a coating area and an extension area, wherein the orthographic projection of the coating area on the display panel overlaps with the orthographic projection of the edge of the polarizing layer on the display panel, and the orthographic projection of the guide portion on the display panel at least covers the orthographic projection of the extension area on the display panel.

[0011] Optionally, the flow guide extends through the polarizing layer in a direction perpendicular to the display panel.

[0012] Optionally, a plurality of the flow guides are arranged in an array along a first direction in the bending region, and the flow guides extend along a second direction to the edge of the polarizing layer.

[0013] Optionally, the height of the stress neutralizing layer in the direction perpendicular to the display panel does not exceed the height of the polarizing layer in the direction perpendicular to the display panel.

[0014] Optionally, the display panel has a support layer on the surface facing away from the polarizing layer.

[0015] Optionally, the stress neutralizing layer is an organic material.

[0016] Optionally, the polarizing layer has a release film on the side surface facing away from the display panel, and the orthographic projection of the release film on the display panel does not overlap with the orthographic projection of the guide portion on the display panel.

[0017] Secondly, this application provides a method for manufacturing a display module, used to manufacture any of the display modules described above, the method comprising:

[0018] Provide a display panel;

[0019] A polarizing layer is aligned and bonded on the display panel, and the polarizing layer has multiple flow guiding parts on the side near the stress neutralizing layer;

[0020] An organic material is coated onto the display panel to form a stress-neutralizing layer, which at least partially fills the flow guide portion.

[0021] Thirdly, this application provides a display device, including a display module as described in any of the above.

[0022] The technical solutions provided by the embodiments of this application may include the following beneficial effects:

[0023] The display module provided in this application embodiment has a flow guide on the polarizing layer, which allows some of the adhesive material of the stress neutralizing layer to flow into the flow guide, preventing the adhesive material from piling up at the interface with the polarizing layer, increasing the adhesion to the polarizing layer, and preventing bending, delamination or breakage; the bending area has a good bending effect, preventing cracks in the wiring at the bending area of ​​the display panel, and achieving an ultra-narrow bezel of the display panel. Attached Figure Description

[0024] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0025] Figure 1 A schematic diagram of a rubber compound stack provided for an embodiment of this application;

[0026] Figure 2 A cross-sectional schematic diagram of a display module provided for an embodiment of this application;

[0027] Figure 3 A top view of a display module provided for an embodiment of this application;

[0028] Figure 4 A schematic diagram of the bent state of a display module provided for an embodiment of this application;

[0029] Figure 5-8 A top view of a polarizing layer provided for an embodiment of this application;

[0030] Figure 9 A flowchart illustrating a method for manufacturing a display module, provided for an embodiment of this application;

[0031] Figure 10 A schematic diagram illustrating the bonding state of a polarizing layer and a release film, provided for an embodiment of this application;

[0032] Figure 11 This is a schematic diagram showing the state of a polarizing layer being bonded to a display panel, as provided in an embodiment of this application. Detailed Implementation

[0033] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] Currently, in the bending process of display panels, a stress-neutralizing layer needs to be placed in the bending area to improve the bending performance of the display panel. However, in the adhesive coating process, the adhesive application position of the stress-neutralizing layer is flush with the polarizing layer. Due to the siphon effect, the adhesive is attracted to the top of the polarizing layer, and because of the fluidity of the adhesive, it causes stacking at the contact point with the polarizing layer, such as... Figure 1 As shown, the stress at the stacked area is the greatest when the object is bent, making it prone to bending, delamination, and breakage.

[0036] Please see details. Figure 2-4 This application provides a display module, including:

[0037] A display panel 1 and a polarizing layer 2 are stacked together. The display panel 1 includes a display area D1 and a bending area D2. The orthographic projection of the polarizing layer 2 on the display panel 1 at least covers the display area D1.

[0038] A stress neutralizing layer 3 is disposed on the side of the display panel 1 near the polarizing layer 2, and the orthographic projection of the stress neutralizing layer 3 on the display panel 1 at least covers the bending area D2.

[0039] In this embodiment, the polarizing layer 2 has multiple flow guiding sections 4 on the side near the stress neutralizing layer 3, and the stress neutralizing layer 3 at least partially fills the flow guiding sections 4. It should be noted that, in this embodiment, "at least partially filling the flow guiding sections 4" means that the stress neutralizing layer 3 partially or completely covers the flow guiding sections 4. Depending on the amount of adhesive applied to the stress neutralizing layer 3 or the flowability of the adhesive, the adhesive may completely fill or partially fill the flow guiding sections 4 in its natural leveling state.

[0040] In this embodiment, the stress neutralizing layer 3 includes a coating area D4 and an extension area D3. The orthographic projection of the coating area D4 on the display panel 1 overlaps with the orthographic projection of the edge of the polarizing layer 2 on the display panel 1. The orthographic projection of the guide portion 4 on the display panel 1 at least covers the orthographic projection of the extension area D3 on the display panel 1. In this embodiment, the extension area D3 flows naturally through the coating area D4 to the guide portion 4 in the polarizing layer 2 via the adhesive flow of the stress neutralizing layer 3. The boundary of the coating area D4 is flush with the edge of the polarizing layer 2.

[0041] The display module provided in this application embodiment has a flow guide 4 on the polarizing layer 2, which allows some of the adhesive material of the stress neutralizing layer 3 to flow into the flow guide 4. This prevents the adhesive material from stacking at the interface with the polarizing layer 2, increases the adhesion to the polarizing layer 2, and prevents bending, delamination, or breakage, as well as the strength of the polarizing layer 2. The bending area D2 has a good bending effect, preventing cracks from occurring in the wiring at the bending area D2 position of the display panel 1, and achieving an ultra-narrow bezel for the display panel 1.

[0042] The display module provided in this application embodiment enables the bending stress of the display panel 1 in a bent state to be at least partially offset by the tensile stress of the stress neutralization layer 3, thereby reducing the stress of the display panel 1, improving the warping phenomenon that occurs after the film layers are stacked, thereby reducing the degree of warping of the overall film layers of the array substrate and improving the product yield.

[0043] In the embodiments disclosed herein, such as Figure 5 As shown, a plurality of the flow guiding portions 4 are arranged in an array along the first direction X in the bending region D2, and the flow guiding portions 4 extend to the edge of the polarizing layer 2 along the second direction Y. The flow guiding portions 4 penetrate the polarizing layer 2 in a direction perpendicular to the display panel 1. It should be noted that the shape and number of the flow guiding portions 4 can be determined according to the size of the polarizing layer 2, and the embodiment of the present invention does not limit the shape and number of the flow guiding portions 4. The first direction X and the second direction Y are arranged at an angle. The first direction X can be along the width direction of the display panel 1, and the second direction Y can be along the length direction of the display panel 1. Of course, in other embodiments, the first direction X and the second direction Y can be other directions.

[0044] For example, in the direction parallel to the display panel 1, the pattern of the above-mentioned flow guide 4 can be various patterns such as rectangle, square, circle, triangle, etc., and this embodiment of the present disclosure is not limited. As for the process of processing the pattern of the above-mentioned flow guide 4, any feasible process such as die-cutting process, etching process, laser cutting process can be adopted, and it is not limited here.

[0045] The stress neutralizing layer 3 is an organic material. In this embodiment, the stress neutralizing layer 3 has a certain degree of viscoelasticity. For example, the stress neutralizing layer 3 is Tuffy adhesive, acrylic adhesive, or acrylic adhesive. Of course, the stress neutralizing layer 3 can also be other elastic colloids.

[0046] In this embodiment of the present disclosure, the height of the stress neutralizing layer 3 in the direction perpendicular to the display panel 1 does not exceed the height of the polarizing layer 2 in the direction perpendicular to the display panel 1. That is, in a cross section perpendicular to the display panel 1, the upper surface of the stress neutralizing layer 3 is not higher than the upper surface of the polarizing layer 2.

[0047] The structure of this embodiment prevents the stress neutralizing layer 3 from overflowing onto the upper surface of the polarizing layer 2, thus preventing contamination of the polarizing layer 2. Furthermore, it helps avoid excessive overall thickness of the stress neutralizing layer 3 and the display panel 1, which could lead to interference with other adjacent film layers of the display module.

[0048] Because the adhesive in the stress neutralizing layer 3 has a certain surface tension before curing, in order to ensure that the adhesive can flow fully into the guide section 4 when overflowing, in one possible embodiment, such as Figure 6 As shown, the cross-sectional width of the flow guide 4 at the end furthest from the stress neutralizing layer 3 is greater than the cross-sectional width at the end closest to the stress neutralizing layer 3. In this embodiment, the cross-sectional width is the cross-sectional dimension perpendicular to the direction of the display panel 1.

[0049] In this embodiment, by making the cross-sectional dimension of the end away from the adhesive larger than the cross-sectional dimension of the end closer to the adhesive, a negative pressure can be formed at the end away from the adhesive during the flow process, which increases the fluidity of the adhesive and further increases the flatness of the stress neutralization layer 3.

[0050] In another embodiment of this disclosure, such as Figure 7 As shown, the flow guiding portion 4 includes a storage area 6 away from the stress neutralizing layer 3 and a flow guiding area 7 near the stress neutralizing layer 3. In some embodiments, the storage area 6 has a circular cross-sectional shape in the direction parallel to the display panel 1, and the flow guiding area 7 has a rectangular cross-sectional shape in the direction parallel to the display panel 1. The diameter of the storage area 6 is greater than the width of the flow guiding area 7. The length of the flow guiding area 7 is the dimension along the second direction Y, and the width of the flow guiding area 7 is the dimension perpendicular to the second direction Y.

[0051] It should be noted that the present disclosure shows an exemplary structure of the storage area 6 and the flow guiding area 7, but the present application is not limited thereto. In other embodiments, the flow guiding area 7 and the storage area 6 may also adopt other structures.

[0052] In this embodiment, the storage area 6 can increase the negative pressure of the guide section 4 at the end away from the adhesive, increase the fluidity of the adhesive, and prevent the adhesive from piling up at the contact position between the adhesive and the polarizing layer 2. On the other hand, it can also increase the contact area between the polarizing layer 2 and the adhesive, thereby increasing the adhesion.

[0053] In another embodiment of this disclosure, such as Figure 8As shown, adjacent storage areas 6 are connected. Optionally, some storage areas 6 are connected, or all storage areas 6 are fully connected. For example, the storage areas 6 are continuous and arranged perpendicular to the extension direction of the guide area 7. The guide section 4 has a T-shaped structure, which can increase the flowability of the adhesive, improve the flatness, and reduce the coverage length of the guide section 4. It is understood that in this embodiment, the shape of the storage areas 6 and the guide area 7 in the guide section 4 is not limited.

[0054] In the embodiments of this disclosure, the display panel 1 is an OLED flexible display panel 1. Specifically, a display layer can be integrated on the display area D1 of the flexible substrate. The display layer may include the flexible substrate and the display layer disposed on the flexible substrate. The display layer may include various display components such as thin-film transistors, gate lines, data lines, capacitors, anodes, cathodes, organic light-emitting layers, and color filters. The flexible substrate is made of polyimide; however, it can also be made of other flexible materials. In this application, a polarizing layer 2 is disposed on the display layer to increase the light transmittance of the display layer and reduce external light reflection. A cover plate for protecting the display panel 1 is also disposed on the polarizing layer 2.

[0055] In this embodiment, the display panel 1 corresponding to the bending region D2 includes a method of removing part of the film layer. By using a stress neutralizing layer 3 to replace part of the film layer, the bending performance of the display panel 1 in the bending region D2 is improved. This application does not limit the specific structure for removing the film layer in the non-display region D1 of the display panel 1. In some embodiments, a method of removing part of the inorganic film layer can be used. By removing the inorganic film layer and using the stress neutralizing layer 3, signal trace breakage caused by extrusion and external stress can be reduced, ensuring the yield of the display panel 1.

[0056] In one embodiment of this application, the stress neutralizing layer 3 is made of a waterproof adhesive layer, which can prevent external moisture and other substances from penetrating the interior of the display panel 1 and causing corrosion of the device.

[0057] The display panel 1 includes a display area D1 and a non-display area D1. The non-display area D1 is provided with an integrated circuit for realizing functions such as signal transmission and driving image display, thereby forming the non-display area D1 of the display panel 1.

[0058] Exemplarily, the display layer includes a thin-film transistor (TFT) structure layer and a pixel delimiting layer (PDL) for defining each pixel region; the TFT array layer may specifically include: an active layer, a gate insulating layer, a gate layer, an interlayer dielectric layer, a source / drain electrode layer, and a planarization layer sequentially formed on a substrate. As described above, the TFT structure is top-gate type. However, the TFT structure in this embodiment can also be bottom-gate type; this embodiment is not limited to this.

[0059] During the fabrication of the display panel 1, the structure of the functional film layer extends from the display area D1 to the non-display area D1. In the prior art, the display area D1 and the non-display area D1 of the display panel 1 have the same layer structure and the same height. Therefore, at the location corresponding to the non-display area D1, apart from retaining the necessary metal layers for forming various signal lines, such as power lines (VDD lines, VSS lines), data lines, gate lines, etc., and retaining the organic layers between the metal layers as insulating layers, other layers can be removed. For example, the pixel boundary layer (PDL) located in the non-display area D1 can be removed, and the non-display area D1 can be thinned to remove at least part of the organic layer. The organic layer can be thinned overall using dry etching or laser methods.

[0060] It should be noted that this application does not limit the hierarchical structure of removing the non-display area D1. In different embodiments, depending on the location and arrangement of the metal traces in the non-display area D1, the appropriate method can be selected according to specific application requirements. In the thinned non-display area D1, the stress neutralizing layer 3 can achieve a flush surface with the upper surface away from the display panel 1, thereby increasing the bending stress of the bending area D2.

[0061] In this embodiment, by removing unnecessary organic layers such as flattening layers or pixel delimiting layers at different locations on the non-display area D1 to reduce the thickness of the organic layers, and retaining only the necessary organic layers, the uniformity of the display panel 1 is improved by adding a stress neutralizing layer 3 in the subsequent process, and the overall thickness of the bending area D2 is reduced. While ensuring flatness and increasing bending performance, the probability of moisture accumulation on the bottom bezel is also reduced.

[0062] It is understood that when bending the display panel 1, only the non-display area D1 of the display panel 1 is bent. In the embodiments of this disclosure, the bending area is located in the non-display area D1. In some embodiments, the bending area may completely correspond to the non-display area D1, while in other embodiments, the bending area may be a portion of the non-display area D1. The location of the bending area is not limited in this application and can be adjusted depending on the device or application scenario.

[0063] In this embodiment, the bending area D2 includes a transition segment D5, a bending segment D6, and a trace segment D7 continuously disposed along the direction away from the display area D1. After the display panel 1 is bent, the transition segment D5 and the display area D1 are located on the same plane, and the cross-sectional shape of the transition segment D5 is straight. The trace segment D7 is disposed parallel to the display area D1, and the cross-sectional shape of the trace segment D7 is straight.

[0064] Generally, the bending area D2 after bending is arc-shaped. For example... Figure 4As shown. Preferably, the bending angle of the bending area D2 after bending is 180 degrees, so that the trace segment D7 is parallel to the display area D1. Therefore, after bending in the bending area D2, the components within the trace segment D7 and the display panel 1 can be better supported and fixed, and the manufacturing process is also easier. In addition, it effectively reduces the space occupied by the display panel 1.

[0065] Various signal traces and driving circuits 9 are disposed within trace segment D7. In one embodiment, it also includes a driving circuit 9 disposed on trace segment D7 of display panel 1. Specifically, in some embodiments, the driving circuit 9 may employ COP (Chip On Pi) packaging technology. Of course, in other embodiments, a flexible circuit board may also be disposed on the trace end.

[0066] In this embodiment of the present disclosure, the transition section D5 includes an extension area D3 of the stress neutralizing layer 3 and a partial coating area D4. The coating area D4 of the stress neutralizing layer 3 completely covers the bending section D6, and the coating area D4 covers a portion of the trace section D7.

[0067] In this embodiment, the bending stress in transition section D5 or trace section D7 is less than the bending stress in bending section D6. By setting the coating area D4 in part of transition section D5 and part of trace section D7, the bending effect can be improved. In transition section D5, which is the area where bending stress begins, the stress neutralizing layer 3 transitions from the point where no deformation has occurred to the point where deformation has occurred. In trace section D7, which is the area where bending stress ends, the stress neutralizing layer 3 transitions from the point where deformation has occurred to the point where no deformation has occurred. This can prevent sudden deformation from causing the display panel 1 to break, and better improve the bending resistance of the display panel 1.

[0068] Optionally, a support layer 8 is provided on the surface of the display panel 1 facing away from the polarizing layer 2. Specifically, the support layer 8 is mainly used to fix and support the display panel 1 to prevent the bending area D2 of the display panel 1 from breaking due to excessive bending. The support layer 8 may include a multi-layer structure. Further, the support layer 8 can be made of a material that combines hardness and elasticity. The support layer 8 can both support the display panel 1 and dampen vibrations in the display panel 1.

[0069] The support layer 8 includes multiple hollow structures, which are spliced ​​together to form a mesh structure. These hollow structures are used to release the bending stress of the support layer 8, thus preventing stress concentration during bending. Optionally, the shape of the hollow structure includes at least one of rhombus, trapezoid, annular, and fan-shaped, wherein the hollow structure penetrates the support layer 8. In this embodiment, a rectangular cross-section cut-off structure is shown, which can also be considered a hollow structure. In application, the size or number of hollow structures can be adjusted according to the bending radius, etc.

[0070] In some possible embodiments, the support layer 8 is an alloy steel mesh layer. Of course, the support layer 8 may also be made of other materials, and this disclosure does not limit this.

[0071] Optionally, the polarizing layer 2 has a release film 5 on the side surface facing away from the display panel 1, and the orthographic projection of the release film 5 on the display panel 1 does not overlap with the orthographic projection of the guide portion 4 on the display panel 1.

[0072] The release film 5 is removed after the polarizing layer 2 is bonded to the display panel 1. In this embodiment, the removal of the release film 5 occurs after the stress neutralizing layer 3 is formed. The release film 5 can prevent the polarizing layer 2 from being scratched or bumped during transportation, and can also prevent scratches on the polarizing layer 2 during the bonding process between the polarizing layer 2 and the display panel 1.

[0073] It should be noted that in this embodiment, the release film 5 is positioned to avoid the flow guide 4. This avoidance prevents the adhesive from contacting the release film 5 when flowing in the flow guide 4, thus preventing tearing of the stress neutralizing layer 3 and the polarizing layer 2 or display panel 1 during the removal of the release film 5. The release film 5 is a commonly used technique for protecting the polarizing layer 2 in the prior art, and this application will not elaborate on the material and bonding method of the release film 5.

[0074] like Figure 9 As shown, this application provides a method for manufacturing a display module, used to manufacture any of the display modules described above, the method comprising:

[0075] S01. Provide a display panel 1; the display panel 1 may be an OLED flexible display panel 1.

[0076] S02. Align and bond the polarizing layer 2 onto the display panel 1. The polarizing layer 2 has multiple flow guiding portions 4 on the side near the stress neutralizing layer 3. In this step, a release film 5 is provided on the polarizing layer 2. The side of the polarizing layer 2 not bonded to the release film 5 is bonded to the display area D1 of the display panel 1, such as... Figure 10 As shown, the guide portion 4 is attached to the position corresponding to the non-display area D1. The release film 5 is positioned to avoid the guide portion 4.

[0077] S02. An organic material is coated onto the display panel 1 to form a stress neutralizing layer 3, wherein the stress neutralizing layer 3 at least partially fills the flow guiding portion 4, such as... Figure 11 As shown.

[0078] In this step, the adhesive of the stress neutralizing layer 3 can be applied along the edge of the polarizing layer 2. After application, the adhesive flows naturally towards the guide portion 4, so that the formed stress neutralizing layer 3 at least partially fills the guide portion 4. In this step, the adhesive of the stress neutralizing layer 3 can be fixed in shape by ultraviolet light curing, thereby forming the stress neutralizing layer 3.

[0079] It should be noted that after step S03, the method for manufacturing the display panel 1 further includes: S04, removing the release film 5. The hierarchical structure of the display module is as follows: Figure 3 As shown.

[0080] Based on the same inventive concept, this application provides a display device, including any of the display modules described above. The display device can be any product or component with display functionality, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.

[0081] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0083] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the invention. Terms such as “set” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0084] The present invention has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the present invention to the described embodiments. Those skilled in the art will understand that many variations and modifications can be made based on the teachings of the present invention, and all such variations and modifications fall within the scope of protection claimed by the present invention.

Claims

1. A display module, characterized in that, include: A display panel and a polarizing layer are stacked together. The display panel includes a display area and a bending area. The orthogonal projection of the polarizing layer onto the display panel at least covers the display area. A stress neutralizing layer is disposed on the side of the display panel near the polarizing layer, and the orthographic projection of the stress neutralizing layer on the display panel at least covers the bending area. The polarizing layer has multiple flow guiding sections on the side near the stress neutralizing layer. The stress neutralizing layer at least partially fills the flow guiding sections. The flow guiding sections penetrate the polarizing layer in a direction perpendicular to the display panel. The flow guiding section includes a material storage area away from the stress neutralizing layer and a flow guiding area near the stress neutralizing layer. The material storage area is continuous and is arranged perpendicular to the extension direction of the flow guiding area.

2. The display module according to claim 1, characterized in that, The stress neutralizing layer includes a coating area and an extension area. The orthographic projection of the coating area on the display panel overlaps with the orthographic projection of the edge of the polarizing layer on the display panel. The orthographic projection of the guide portion on the display panel at least covers the orthographic projection of the extension area on the display panel.

3. The display module according to claim 1, characterized in that, The plurality of the flow guides are arranged in an array along a first direction in the bending region, and the flow guides extend along a second direction to the edge of the polarizing layer.

4. The display module according to claim 1, characterized in that, The height of the stress neutralizing layer in the direction perpendicular to the display panel does not exceed the height of the polarizing layer in the direction perpendicular to the display panel.

5. The display module according to claim 1, characterized in that, The display panel has a support layer on the side surface facing away from the polarizing layer.

6. The display module according to claim 1, characterized in that, The stress neutralizing layer is an organic material.

7. The display module according to claim 1, characterized in that, The polarizing layer has a release film on the side surface facing away from the display panel, and the orthographic projection of the release film on the display panel does not overlap with the orthographic projection of the guide portion on the display panel.

8. A method for manufacturing a display module, characterized in that, The method for preparing a display module as described in any one of claims 1-7 includes: Provide a display panel; A polarizing layer is aligned and bonded on the display panel, and the polarizing layer has multiple flow guiding parts on the side near the stress neutralizing layer; An organic material is coated onto the display panel to form a stress-neutralizing layer, which at least partially fills the flow guide portion.

9. A display device, characterized in that, Includes the display module as described in any one of claims 1-7.

Images