Display module and display device

Abstract

The application provides a display module and a display device. The display module comprises a display panel and a support arranged on the back of the display panel. The support comprises a first stress release area corresponding to an inner bending area of the display module and a second stress release area corresponding to an outer bending area of the display module. The first groove and the second groove are formed in the second stress release area. In the bending direction of the display module, the width of the first groove is greater than the width of the second groove. The display module further comprises an auxiliary part located in the first groove. In this way, by arranging the first groove with a larger width and the auxiliary part in the first groove, the first groove can meet the requirement of avoiding the middle frame, and when the support is attached, the roller of the attaching device can transmit the pressure to the support through the auxiliary part to meet the attachment requirement and avoid the attachment bubble.

Description

Technical Field

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

[0002] With the development of display technology, flexible displays have entered the commercialization stage. In recent years, various terminal manufacturers have successively launched foldable and rollable display devices. In flexible foldable display devices, in order to ensure that the display module has good overall flatness, the display module generally uses a thinner stainless steel plate as a support member. For the display module with a teardrop-shaped bending shape, its bending shape has bending sections that bend inward (bending towards the display panel) and outward (bending away from the display panel). To match the bending shape of the display module, the support member is provided with a half-engraved area at the outward bending section, and a half-engraved groove is opened in the half-engraved area. The half-engraved groove is located on the side of the support member away from the display panel. The half-engraved groove is used to deform and release stress. However, when the whole machine is assembled, the middle frame will interfere with the half-engraved area, causing the film layer on the display panel to peel (peeling). Summary of the Invention

[0003] The present application provides a display module and a display device to alleviate the technical problem of peeling of a film layer on a display panel in an existing display device.

[0004] To solve the above problems, the technical solutions provided by this application are as follows:

[0005] An embodiment of the present application provides a display module, comprising at least one bending region and a non-bending region located at least on one side of the bending region, wherein the bending region includes at least one inner bending region and an outer bending region located at least on one side of the inner bending region; the display module comprises:

[0006] A display panel having a light emitting surface and a back surface facing away from the light emitting surface;

[0007] a support member disposed on the back of the display panel, the support member including a first stress release area corresponding to the inner curvature area and a second stress release area corresponding to the outer curvature area, the support member having a first groove and a second groove formed in the second stress release area, wherein the width of the first groove is greater than the width of the second groove in the bending direction of the display module;

[0008] The auxiliary member is at least located in the first groove, and in the thickness direction of the display module, the thickness of the auxiliary member is smaller than the depth of the first groove.

[0009] In the display module provided in the embodiment of the present application, the thickness of the auxiliary component accounts for 30%-60% of the depth of the first groove.

[0010] In the display module provided in the embodiment of the present application, the depth of the first groove accounts for 30%-70% of the thickness of the support member.

[0011] In the display module provided in an embodiment of the present application, in the same second stress release area, the first groove is located between two adjacent second grooves, and the number of the second grooves located in the first groove close to the first stress release area is less than the number of the second grooves located in the first groove away from the first stress release area.

[0012] In the display module provided in the embodiment of the present application, the bending area includes one inner bending area and two outer bending areas, the inner bending area connects the two outer bending areas, each outer bending area is correspondingly provided with a second stress release area, and the two second stress release areas are symmetrically arranged with respect to the first stress release area;

[0013] The first grooves in the two second stress release areas are symmetrically arranged about the first stress release area, the second grooves in the two second stress release areas are symmetrically arranged about the first stress release area, and the auxiliary parts in the two second stress release areas are symmetrically arranged about the first stress release area.

[0014] In the display module provided in the embodiment of the present application, the auxiliary component is also located in the second groove, and the material of the auxiliary component includes optical adhesive.

[0015] The present application also provides a display module, comprising at least one bending region and a non-bending region located at least on one side of the bending region, wherein the bending region includes at least one inner bending region and an outer bending region located at least on one side of the inner bending region; the display module includes:

[0016] A display panel having a light emitting surface and a back surface facing away from the light emitting surface;

[0017] a support member disposed on the back of the display panel, the support member including a first stress release area corresponding to the inner curvature area and a second stress release area corresponding to the outer curvature area, the support member having a first groove and a second groove formed in the second stress release area, wherein the width of the first groove is greater than the width of the second groove in the bending direction of the display module;

[0018] a protective film, disposed on a side of the support member facing away from the display panel;

[0019] An auxiliary component is located at least in the first groove and connected to the protective film.

[0020] In the display module provided in an embodiment of the present application, the auxiliary component includes a first end connected to the protective film, and a second end facing away from the first end, and the adhesion force of the first end is greater than the adhesion force of the second end.

[0021] In the display module provided in the embodiment of the present application, the auxiliary part and the protective film have different colors; a barrier film is provided on the side of the protective film close to the support part, and the barrier film is provided corresponding to the inner bending area, part of the outer bending area, and the area of ​​the non-bending area close to the outer bending area.

[0022] The present invention further provides a display device, comprising:

[0023] middle frame;

[0024] The display module as described in one of the aforementioned embodiments, wherein the display module is fixedly connected to the middle frame;

[0025] The middle frame is provided with a chamfer at a position corresponding to the first groove. When the display device is in a folded state, the chamfered portion of the middle frame is accommodated in the first groove.

[0026] The beneficial effects of the present application are as follows: in the display module and display device provided by the present application, the display module includes a display panel and a support member arranged on the back of the display panel, the support member includes a first stress release area corresponding to the inner bending area of ​​the display module, and a second stress release area corresponding to the outer bending area of ​​the display module, the support member is formed with a first groove and a second groove in the second stress release area, and in the bending direction of the display module, the width of the first groove is greater than the width of the second groove, and the display module also includes an auxiliary member located at least in the first groove; in this way, by setting a first groove with a larger width and setting an auxiliary member in the first groove, while meeting the requirement of the first groove avoiding the middle frame, it can also enable the roller of the attaching device to transfer pressure to the support member through the auxiliary member when attaching the support member, so as to meet the attachment requirement and avoid the occurrence of attachment bubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A partial cross-sectional schematic diagram of a comparative display module provided in an embodiment of the present application.

[0029] Figure 2 for Figure 1The figure shows a partial cross-sectional diagram of the module after folding.

[0030] Figure 3 A partial cross-sectional schematic diagram of another comparative display module provided in an embodiment of the present application.

[0031] Figure 4 for Figure 3 The figure shows a partial cross-sectional diagram of the module after folding.

[0032] Figure 5 for Figure 3 Display module and Figure 1 The diagram below shows a comparison of the film peeling risks of the modules.

[0033] Figure 6 for Figure 3 The diagram in the figure shows bubbles appearing when the module is attached to the support.

[0034] Figure 7 A schematic diagram of a planar structure of a display module provided in an embodiment of the present application.

[0035] Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure along the N-N' direction.

[0036] Figure 9 for Figure 7 Schematic diagram of another cross-sectional structure along the N-N' line.

[0037] Figure 10 A schematic diagram of a partial cross-sectional structure of another display module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be implemented in. The directional terms mentioned in this application, such as [up], [down], [front], [back], [left], [right], [inside], [outside], [side], etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present application, rather than to limit the present application. In the figures, units with similar structures are represented by the same reference numerals. In the accompanying drawings, the thickness of some layers and areas is exaggerated for clarity of understanding and ease of description. That is, the size and thickness of each component shown in the drawings are arbitrarily shown, but the present application is not limited to this.

[0039] Reference Figure 1 and Figure 2 , Figure 1 A partial cross-sectional diagram of a comparative display module provided in an embodiment of the present application is shown in FIG. Figure 2 for Figure 1 The figure shows a partial cross-sectional view of the module after folding. Figure 1 As shown, the display module 100' includes a display panel 10' and a support member 20' located on the back of the display panel 10'. The support member 20' is provided with a first stress release area SRA1' (i.e., a full-engraved area) in the inner bending area IFA' (i.e., the inward bending section) corresponding to the display module 100', and a second stress release area SRA2' (i.e., a half-engraved area) in the outer bending area OFA' (i.e., the outward bending section) corresponding to the display module 100'. The support member 20' is formed with a plurality of second grooves 202' (i.e., half-engraved grooves) in the second stress release area SRA2', and the plurality of second grooves 202' are evenly arranged. The difference between the full-engraved area and the half-engraved area is that the support member 20' forms a hollow structure that penetrates the support member 20' in the full-engraved area, and forms a groove structure that does not penetrate the support member 20' in the half-engraved area.

[0040] like Figure 2 As shown, when the display module 100' is in the folded state, the middle frame 200' contacts the support member 20' in the second stress release area SRA2' to form an interference area 300, and the interference between the middle frame 200' and the support member 20' in the second stress release area SRA2' may cause peeling of the film layer on the display panel 10'.

[0041] With regard to the problem that the film layer on the display panel 10 ′ may be peeled off due to interference between the middle frame 200 ′ and the support member 20 ′ of the second stress release area SRA2 ′, the inventors of the present application have found a solution after in-depth research.

[0042] Reference Figures 3 to 6 , Figure 3 This is a partial cross-sectional diagram of another comparative display module 100' provided in an embodiment of the present application. Figure 4 for Figure 3 The schematic diagram of the partial cross section of the module 100' after folding is shown in FIG. Figure 5 for Figure 3 Display module 100' and Figure 1 The schematic diagram showing the comparison of the film peeling risk of the module 100' is shown in FIG. Figure 6 for Figure 3 FIG. 2 shows a schematic diagram of the bonding bubbles when the module 100' is bonded to the support member 20'. Figure 3 As shown, the support member 20' is formed with a first groove 201' and a second groove 202' in the second stress release area SRA2'. In the bending direction of the display module 100', the width of the first groove 201' is greater than the width of the second groove 202'. By providing the first groove 201' with a larger width, when the display module 100' is in the folded state, the portion of the middle frame 200' that originally interfered with the support member 20' in the second stress release area SRA2' can be accommodated in the first groove 201', as shown in FIG. Figure 4That is, by providing a first groove 201' with a relatively large width to avoid the middle frame 200', the interference between the middle frame 200' and the second stress release area SRA2' can be avoided, thereby improving the problem of the film layer on the display panel 10' being peeled off due to the interference between the middle frame 200' and the support member 20' of the second stress release area SRA2'.

[0043] Furthermore, the inventors simulated Figure 3 The exemplary display module 100 ′ and Figure 1 The example of the display module 100' is used to verify the risk of film peeling. Figure 3 The exemplary display module 100' improves the effect of film peeling on the display panel 10'. Taking the electron transport (ET) layer in the light-emitting functional layer on the display panel 10' as an example, refer to Figure 5 , Figure 5 The middle curve A is Figure 3 The example of the peeling risk curve of the electron transport layer of the display module 100 ′ is as follows: Figure 5 The middle curve B is Figure 1 The peeling risk curve of the electron transport layer of the exemplary display module 100 ′ is shown by comparing curve A and curve B. Figure 3 The risk of peeling of the electron transport layer of the exemplary display module 100' is less than Figure 1 The example of the display module 100 ' shows the risk of peeling of the electron transport layer, which confirms that Figure 3 The exemplary display module 100 ′ improves the effect of film peeling on the display panel 10 ′.

[0044] However, the inventors of the present application discovered that Figure 3 Although the exemplary display module 100' can improve the problem of the film layer on the display panel 10' being peeled off due to the interference between the middle frame 200' and the support member 20' of the second stress release area SRA2', it still has the problem of lamination bubbles. Figure 6 When the support member 20' is bonded to the display panel 10', the roller 400' of the bonding device applies pressure to the protective film 40' on the support member 20' to bond the support member 20' to the display panel 10'. However, due to the design of the first groove 201' with a larger width, there is a large area in the second stress release area SRA2' that has no adhesion to the protective film 40' on the support member 20', and the protective film 40' has a large stiffness, resulting in the roller 400' being unable to transfer pressure to the support member 20' at the position corresponding to the first groove 201', thereby causing the support member 20' to be loosely bonded to the display panel 10' at the position where the first groove 201' is designed, and further resulting in bonding bubbles 500' due to the loose bonding when the support member 20' is bonded.

[0045] To this end, the inventors of the present application have found a solution after further in-depth research, which can not only improve the problem of film peeling on the display panel, but also solve the problem of lamination bubbles.

[0046] Please refer to Figure 7 and Figure 8 , Figure 7 A schematic diagram of a planar structure of a display module provided in an embodiment of the present application is shown in FIG. Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure along the N-N' direction. Figure 7 , the display module 100 has at least one bending area BA and a non-bending area NBA located on at least one side of the bending area BA, and each of the bending areas BA includes at least one inner bending area IFA and an outer bending area OFA located on at least one side of the inner bending area IFA. The embodiment of the present application takes the display module 100 including one bending area BA and two non-bending areas NBA, and each of the bending areas BA including one inner bending area IFA and two outer bending areas OFA as an example for explanation, the bending area BA is located between the two non-bending areas NBA, the inner bending area IFA is located between the two outer bending areas OFA, and each of the outer bending areas OFA is located between the inner bending area IFA and the non-bending area NBA.

[0047] The display module 100 can be bent and folded around its bending axis P and along its bending direction. Optionally, the bending direction of the display module 100 is perpendicular to the extension direction of the bending axis P. For example, the display module 100 is bent and folded along a first direction X, and the bending axis P of the display module 100 extends along a second direction Y. The first direction X is perpendicular to the second direction Y. The first direction X is the bending direction of the display module 100, and the second direction Y is the extension direction of the bending axis P of the display module 100.

[0048] Reference Figure 8 The display module 100 includes a display panel 10 and a support member 20 provided on one side of the display panel 10. The display panel 10 has a light-emitting surface and a back surface facing away from the light-emitting surface. The light-emitting surface of the display panel 10 refers to the side of the display panel 10 used to display images. The support member 20 is provided on the back side of the display panel 10 to support the display panel 10. The display panel 10 includes a flexible display panel such as a light-emitting diode (LED) display panel, a micro light-emitting diode (Micro-LED) display panel or a sub-millimeter light-emitting diode (Mini-LED) display panel to achieve bending, folding, curling, etc.

[0049] The support 20 comprises a first stress release area SRA1 corresponding to the inner bending area IFA, and a second stress release area SRA2 corresponding to the outer bending area OFA. Each of the outer bending areas OFA is provided with one of the second stress release areas SRA2, and the two second stress release areas SRA2 are symmetrically arranged about the first stress release area SRA1. The first stress release area SRA1 and the second stress release area SRA2 are used to release the bending stress generated when the display module 100 is bent and folded.

[0050] The support 20 is formed with a first groove 201 and a second groove 202 in the second stress release area SRA2. Wherein the support 20 is formed with a hollow structure penetrating the support 20 in the first stress release area SRA1, and is formed with a groove structure not penetrating the support 20 in the second stress release area SRA2, such as the first groove 201 and the second groove 202, so that the strength of the support 20 in the first stress release area SRA1 is less than the strength of the support 20 in the second stress release area SRA2.

[0051] In the same second stress release area SRA2, the first groove 201 is located between two adjacent second grooves 202, and the number of the second grooves 202 located close to the first stress release area SRA1 at the first groove 201 is less than the number of the second grooves 202 located away from the first stress release area SRA1 at the first groove 201. The first grooves 201 in the two second stress release areas SRA2 are symmetrically arranged about the first stress release area SRA1, and the second grooves 202 in the two second stress release areas SRA2 are symmetrically arranged about the first stress release area SRA1.

[0052] In the bending direction of the display module 100, the width of the first groove 201 is greater than the width of the second groove 202. Optionally, the width of the first groove 201 ranges from 120 microns to 3500 microns, such as 120 microns, 200 microns, 500 microns, 800 microns, 1200 microns, 1700 microns, 2200 microns, 2600 microns, 3000 microns, 3500 microns, etc. By setting the first groove 201 with a larger width to avoid the middle frame, the interference between the middle frame and the second stress release area SRA2 is avoided, and the problem of peeling of the film layer on the display panel 10 in the existing display device is improved.

[0053] The display module 100 also includes an auxiliary member 30, made of optical adhesive, such as UV adhesive. The auxiliary member 30 is located at least within the first groove 201. The auxiliary members 30 within the two second stress relief areas SRA2 are symmetrically arranged with respect to the first stress relief area SRA1. In the thickness direction of the display module 100, the thickness of the auxiliary member 30 is less than the depth of the first groove 201. This ensures that the first groove 201 avoids the middle frame while also allowing the roller of the attachment device to transfer pressure to the support member 20 through the auxiliary member 30 during attachment, ensuring proper attachment and preventing bubbles.

[0054] Optionally, the thickness of the auxiliary member 30 accounts for 30%-60% of the depth of the first groove 201, such as 30%, 35%, 40%, 45%, 50%, 55%, 60%, etc. When the thickness of the auxiliary member 30 accounts for less than 30% of the depth of the first groove 201, the roller of the attaching device may not be able to transmit pressure to the support member 20 through the auxiliary member 30, and thus the improvement of lamination bubbles may not be achieved or the improvement of lamination bubbles may be insignificant. When the thickness of the auxiliary member 30 accounts for more than 60% of the depth of the first groove 201, the requirement that the first groove 201 avoids the middle frame may not be met.

[0055] In this way, by setting the first groove 201 with a larger width and setting the auxiliary part 30 in the first groove 201, while meeting the requirement of the first groove 201 to avoid the middle frame, it can also enable the roller of the attaching device to transfer pressure to the support part 20 through the auxiliary part 30 when fitting the support part 20, so as to meet the fitting requirements and avoid the occurrence of fitting bubbles.

[0056] Optionally, the depth of the first groove 201 accounts for 30%-70% of the thickness of the support member 20, such as 30%, 35%, 40%, 45%, 50%, 55%, 60%, 70%, etc. The depth of the second groove 202 is equal to the depth of the first groove 201, that is, the depth of the second groove 202 accounts for 30%-70% of the thickness of the support member 20. In this way, the support member 20 can release bending stress in the second stress release area SRA2 while also ensuring the stiffness of the support member 20 in the second stress release area SRA2. The thickness of the support member 20 ranges from 120 microns to 150 microns, such as 120 microns, 125 microns, 130 microns, 135 microns, 140 microns, 145 microns, 150 microns, etc.

[0057] Optionally, the display module 100 further includes a cover layer 50, a back plate 60, a buffer layer 70, etc. The cover layer 50 is disposed on the light-emitting surface of the display panel 10 and may include at least one transparent substrate such as glass, ultra-thin glass, PET, or PI. For example, the cover layer 50 may be formed of a three-layer structure of ultra-thin glass, PET, and PI, wherein the ultra-thin glass is located between the PET layer and the PI layer.

[0058] The back plate 60 is disposed between the display panel 10 and the support member 20. The buffer layer 70 is disposed between the back plate 60 and the support member 20. The back plate 60 is made of PET, etc., the buffer layer 70 is made of foam, PI, etc., and the support member 20 is made of stainless steel, titanium alloy, etc.

[0059] In one embodiment, referring to Figure 9 , Figure 9 for Figure 7 Another cross-sectional structure diagram along the N-N' line. Figure 8 The difference of the exemplary display module 100 is that the auxiliary member 30 is also located within the second groove 202, that is, within the second stress relief area SRA2. The auxiliary member 30 is provided in both the first groove 201 and the second groove 202. This enhances the overall stiffness of the support member 20 in the second stress relief area SRA2 while maintaining the same stress relief effect. Alternatively, while maintaining the same overall stiffness of the support member 20 in the second stress relief area SRA2, the width of the second groove 202 can be appropriately increased to further enhance the stress relief effect in the second stress relief area SRA2. For other details, please refer to the above embodiment and will not be repeated here.

[0060] Based on the same inventive concept, the present application also provides a display module, referring to Figure 10 , Figure 10 A schematic diagram of a partial cross-sectional structure of another display module provided in an embodiment of the present application. Figure 8 and Figure 9 The difference of the exemplary display module 100 is that Figure 10 In the exemplary display module 101 , the auxiliary member 30 is disposed on the protective film 40 of the support member 20 , and in a subsequent whole-unit assembly process, the auxiliary member 30 is torn off together with the protective film 40 .

[0061] Specifically, refer to Figure 10The display module 101 includes a display panel 10, a support member 20, a protective film 40 and an auxiliary member 30. The display panel 10 has a light-emitting surface and a back surface facing away from the light-emitting surface. The support member 20 is arranged on the back surface of the display panel 10. The support member 20 includes a first stress release area SRA1 corresponding to the inner bending area IFA, and a second stress release area SRA2 corresponding to the outer bending area OFA. The support member 20 is formed with a first groove 201 and a second groove 202 in the second stress release area SRA2. In the bending direction of the display panel 10, the width of the first groove 201 is greater than the width of the second groove 202. The protective film 40 is arranged on the side of the support member 20 facing away from the display panel 10. The auxiliary member 30 is at least located in the first groove 201 and is connected to the protective film 40.

[0062] In this way, by setting a first groove 201 with a larger width on the support member 20, and setting an auxiliary member 30 at a position of the protective film 40 corresponding to the first groove 201, so that the auxiliary member 30 is located in the first groove 201, the roller of the attaching device can transfer pressure to the support member 20 through the auxiliary member 30 to meet the fitting requirements and avoid the occurrence of fitting bubbles. Moreover, in the subsequent whole machine assembly process, the auxiliary member 30 is torn off together with the protective film 40, and the first groove 201 with a larger width is exposed to avoid the middle frame and prevent the middle frame from interfering with the second stress release area SRA2, thereby improving the problem of film peeling on the display panel 10.

[0063] Optionally, the auxiliary member 30 includes a first end connected to the protective film 40 and a second end facing away from the first end. The second end abuts the support member 20 at the bottom of the first groove 201, thereby bridging the gap between the protective film 40 and the support member 20 at the location of the first groove 201. The adhesion of the first end is greater than that of the second end, so that when the protective film 40 is removed, the auxiliary member 30 located in the first groove 201 is removed along with the protective film 40 without remaining in the first groove 201.

[0064] Optionally, the auxiliary part 30 and the protective film 40 are of different colors. For example, the auxiliary part 30 is formed of black or red PET, while the protective film 40 is formed of transparent PET. In this way, it is possible to quickly and directly confirm whether the auxiliary part 30 is torn off along with the protective film 40.

[0065] Optionally, a barrier film 80 is further provided on the protective film 40. The barrier film 80 is provided corresponding to the inner bending area IFA, a portion of the outer bending area OFA, and the non-bending area NBA near the outer bending area OFA. The barrier film 80 is used to prevent the protective film 40 from adhering to the support member 20 at certain locations, thereby preventing residual adhesive from remaining on the protective film 40 at these locations.

[0066] Based on the same inventive concept, an embodiment of the present application further provides a display device comprising a middle frame and a display module, wherein the display module is fixedly connected to the middle frame. The display module comprises the display module 100 of one of the aforementioned embodiments, or the display module 101 of the aforementioned embodiment with the protective film 40 removed. The middle frame is provided with a chamfer at a position corresponding to the first groove 201. When the display device is in a folded state, the chamfered portion of the middle frame is received within the first groove 201.

[0067] According to the above embodiments, it can be seen that:

[0068] In a display module and display device provided by the present application, the display module includes a display panel and a support member arranged on the back of the display panel, the support member includes a first stress release area corresponding to the inner bending area of ​​the display module, and a second stress release area corresponding to the outer bending area of ​​the display module, the support member is formed with a first groove and a second groove in the second stress release area, and in the bending direction of the display module, the width of the first groove is greater than the width of the second groove, and the display module also includes an auxiliary member located at least in the first groove; in this way, by setting a first groove with a larger width and setting an auxiliary member in the first groove, while meeting the requirement of the first groove avoiding the middle frame, it can also enable the roller of the attaching device to transfer pressure to the support member through the auxiliary member when attaching the support member, so as to meet the attachment requirements and avoid the occurrence of attachment bubbles.

[0069] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0070] The above is a detailed introduction to the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display module, characterized in that: The display module has at least one bending area and a non-bending area located at at least one side of the bending area, wherein the bending area includes at least one inner bending area and an outer bending area located at at least one side of the inner bending area; The display module includes: A display panel having a light emitting surface and a back surface facing away from the light emitting surface; a support member disposed on the back of the display panel, the support member including a first stress release area corresponding to the inner curvature area and a second stress release area corresponding to the outer curvature area, the support member having a first groove and a second groove formed in the second stress release area, wherein the width of the first groove is greater than the width of the second groove in the bending direction of the display module; The auxiliary member is at least located in the first groove, and in the thickness direction of the display module, the thickness of the auxiliary member is smaller than the depth of the first groove.

2. The display module according to claim 1, wherein: The thickness of the auxiliary component accounts for 30%-60% of the depth of the first groove.

3. The display module according to claim 2, wherein: The depth of the first groove accounts for 30%-70% of the thickness of the support member.

4. The display module according to claim 1, wherein: In the same second stress release area, the first groove is located between two adjacent second grooves, and the number of the second grooves located near the first stress release area is less than the number of the second grooves located far from the first stress release area.

5. The display module according to claim 4, wherein: The bending area includes one inner bending area and two outer bending areas, the inner bending area connects the two outer bending areas, each outer bending area is correspondingly provided with a second stress release area, and the two second stress release areas are symmetrically arranged with respect to the first stress release area; The first grooves in the two second stress release areas are symmetrically arranged about the first stress release area, the second grooves in the two second stress release areas are symmetrically arranged about the first stress release area, and the auxiliary parts in the two second stress release areas are symmetrically arranged about the first stress release area.

6. The display module according to any one of claims 1 to 5, characterized in that: The auxiliary part is also located in the second groove, and the material of the auxiliary part includes optical adhesive.

7. A display module, characterized in that: The display module has at least one bending area and a non-bending area located at at least one side of the bending area, wherein the bending area includes at least one inner bending area and an outer bending area located at at least one side of the inner bending area; The display module includes: A display panel having a light emitting surface and a back surface facing away from the light emitting surface; a support member disposed on the back of the display panel, the support member including a first stress release area corresponding to the inner curvature area and a second stress release area corresponding to the outer curvature area, the support member having a first groove and a second groove formed in the second stress release area, wherein the width of the first groove is greater than the width of the second groove in the bending direction of the display module; a protective film, disposed on a side of the support member facing away from the display panel; An auxiliary component is located at least in the first groove and connected to the protective film.

8. The display module according to claim 7, wherein: The auxiliary member includes a first end portion connected to the protective film and a second end portion facing away from the first end portion, and an adhesive force of the first end portion is greater than an adhesive force of the second end portion.

9. The display module according to claim 8, wherein: The auxiliary member and the protective film have different colors; A barrier film is provided on one side of the protective film close to the support member, and the barrier film is provided corresponding to the inner bending area, part of the outer bending area, and an area of ​​the non-bending area close to the outer bending area.

10. A display device, characterized in that: include: middle frame; The display module according to any one of claims 1 to 6, wherein the display module is fixedly connected to the middle frame; The middle frame is provided with a chamfer at a position corresponding to the first groove. When the display device is in a folded state, the chamfered portion of the middle frame is accommodated in the first groove.

Images