Display module and display device

Abstract

The application discloses a display module and a display device; the display module comprises a composite support layer, a display panel, a protection piece and a solidifying plate, the display panel comprises a first body, a second body and a bending part connecting the first body and the second body, the first body is arranged on a first side of the composite support layer, the second body is arranged on a second side of the composite support layer opposite to the first side, a first protection part of the protection piece is located on a side of the bending part away from the composite support layer and extends to a side of a part of the second body away from the first body; the first sub-plate of the solidifying plate is arranged on a surface of the first protection part away from the first body, and the Young's modulus of the solidifying plate is greater than the Young's modulus of the protection piece, so that the appearance of the first protection part is the same as the appearance of the solidifying plate in the solidification process, the uncertainty of the appearance of the first protection part is eliminated, and technical problems such as interference between the protection piece and a whole machine frame are avoided.

Description

TECHNICAL FIELD

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

[0002] With the development trend of pursuing the ultimate full screen of electronic equipment, display screens (such as mobile phones) on the market are emerging in an endless stream. In order to pursue the diversification of the appearance of display equipment, the narrow frame design of the display screen is particularly important.

[0003] In the current narrow frame display screen, the support force of the edge area of the display screen is insufficient, so that the impact resistance of the display screen is poor. In order to improve the impact resistance of the display screen, the edge area of the display screen is usually filled with glue material, and the morphology of the glue material away from the cover plate is affected by external factors such as equipment and material surface tension. Therefore, the morphology of the glue material cannot be determined, and technical problems such as interference with the whole machine frame are prone to occur. SUMMARY

[0004] The present application provides a display module and a display device to improve the technical problem that the morphology of the glue layer for supporting in the existing display equipment cannot be determined.

[0005] To solve the above-mentioned solutions, the technical solutions provided by the present application are as follows:

[0006] In a first aspect, the present application provides a display module, comprising:

[0007] a composite support layer;

[0008] a display panel, comprising a first body, a second body and a bending part connecting the first body and the second body, the first body is arranged on a first side of the composite support layer, and the second body is arranged on a second side of the composite support layer opposite to the first side;

[0009] a protection member, comprising a first protection part, the first protection part is located on a side of the bending part away from the composite support layer, and extends to a side of part of the second body away from the first body; and

[0010] a solid plate, comprising a first sub-plate, the first sub-plate is arranged on a surface of the first protection part away from the first body, and the Young's modulus of the solid plate is greater than the Young's modulus of the protection member.

[0011] Optionally, the first protection part comprises a first barrier wall and a second barrier wall arranged on both sides of the first barrier wall, and the first sub-plate covers at least a surface of the first barrier wall away from the display panel.

[0012] Optionally, at least one of the two ends of the first sub-plate in the width direction of the first sub-plate is arranged at least partially overlapping the corresponding second barrier wall.

[0013] Optionally, the first sub-plate is further provided with a hollow hole at least partially overlapping the first barrier wall in the first protection part, the hollow hole penetrating the first sub-plate in the thickness direction of the display panel.

[0014] Optionally, the protection member further comprises a second protection part connected with the first protection part, the second protection part comprising the first barrier wall and the second barrier wall arranged on both sides of the first barrier wall, the first protection part and the second protection part forming a closed first annular structure, and the first annular structure covering the periphery of the display panel.

[0015] Optionally, the first sub-plate, the second sub-plate, the third sub-plate and the fourth sub-plate form a closed second annular structure, and the second sub-plate, the third sub-plate and the fourth sub-plate are arranged on the surface of the second protection part away from the display panel.

[0016] Optionally, at least one of the first sub-plate, the second sub-plate, the third sub-plate and the fourth sub-plate is further provided with a hollow hole at least partially overlapping the first barrier wall in the corresponding protection part, the hollow hole penetrating the corresponding sub-plate in the thickness direction of the display panel.

[0017] Optionally, the first sub-plate and the third sub-plate are arranged in parallel, the second sub-plate and the fourth sub-plate are arranged in parallel, and the length of the first sub-plate and the third sub-plate is less than the length of the second sub-plate and the fourth sub-plate.

[0018] Optionally, the distance between two adjacent hollow holes on the first sub-plate and the third sub-plate is less than the distance between two adjacent hollow holes on the second sub-plate and the fourth sub-plate.

[0019] Optionally, the aperture of the hollow hole is less than or equal to half of the width of the solid plate at the position of the hollow hole.

[0020] Optionally, in the sub-plates of the solid plate, the distance between two adjacent hollow holes in the middle region is greater than the distance between two adjacent hollow holes in the edge region.

[0021] Optionally, the solid plate further comprises a corner sub-plate connecting the first sub-plate, the second sub-plate, the third sub-plate and the fourth sub-plate, and the width of the corner sub-plate is greater than the width of the first sub-plate, the second sub-plate, the third sub-plate and the fourth sub-plate.

[0022] Optionally, the display module further comprises a cover layer arranged on a side of the first body away from the composite support layer, the cover layer comprises a planar portion and a curved portion located at a periphery of the planar portion, and the curved portion comprises a plurality of side sub-portions located at a periphery of the planar portion and a plurality of corner sub-portions located between adjacent two side sub-portions.

[0023] The first protection portion is connected to at least a surface of the bending portion away from the composite support layer, and the side sub-portions and the corner sub-portions corresponding to the bending portion.

[0024] Optionally, a surface of the cover layer close to the first protection portion corresponds to a surface of the solidifying plate, and a surface of the solidifying plate away from the cover layer is parallel to the surface of the cover layer.

[0025] Optionally, a compensation glue is filled between the cover layer and the bending portion, and a gelation rate of the compensation glue is different from a gelation rate of the first barrier wall.

[0026] Optionally, the protection member further comprises a third protection portion connected to the first barrier wall, and at least part of the third protection portion is located in an enclosed space between the bending portion and the composite support layer.

[0027] The gelation rate of the third protection portion is different from the gelation rate of the first barrier wall.

[0028] Optionally, the second barrier wall comprises a first sub-portion and a second sub-portion, the first sub-portion is arranged close to a central region of the display module, and the second sub-portion is arranged away from the central region of the display module.

[0029] The Young's modulus of the first sub-portion and the second sub-portion is greater than or equal to the Young's modulus of the first barrier wall.

[0030] Optionally, a width of the first sub-portion close to the display panel is greater than or equal to a width of the first sub-portion away from the display panel, and a width of the second sub-portion close to the display panel is greater than or equal to a width of the second sub-portion away from the display panel.

[0031] Optionally, the first sub-portion and the second sub-portion each comprise a plurality of barrier wall units connected in a thickness direction of the second barrier wall, and an outer wall of the barrier wall unit is convex.

[0032] Optionally, a thickness of the solidifying plate is less than a thickness of the protection member.

[0033] Optionally, the material of the fixed plate comprises one of metal, glass, polymethyl methacrylate, polycarbonate, and polyethylene terephthalate.

[0034] In a second aspect, the present application further provides a display device, which comprises the display module and a middle frame, and the protection member and the fixed plate are arranged in a region between the middle frame and the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0035] The technical solutions and other beneficial effects of the present application will be apparent from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings.

[0036] Figure 1 FIG. 1 is a structural diagram of a display module according to the present application;

[0037] Figure 2 FIG. 2 is a first cross-sectional view of the display module along section AA; Figure 1

[0038] Figure 3 FIG. 3 is a second cross-sectional view of the display module along section AA; Figure 1

[0039] Figure 4 FIG. 4 is a structural diagram of a film layer of the display panel in the display module according to the present application;

[0040] Figure 5 FIG. 5 is a structural diagram of a cover plate layer in the display module according to the present application; Figure 3

[0041] Figure 6 FIG. 6 is a structural diagram of the display module before bending according to the present application;

[0042] Figure 7 FIG. 7 is an exploded view of the display module according to the present application; Figure 1

[0043] Figure 8 FIG. 8 is an enlarged view of the region M in the display module according to the present application. Figure 7 DETAILED DESCRIPTION The technical solutions and other beneficial effects of the present application will be apparent from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings.

[0044] Please refer to , the present application provides a display module 100, which comprises a composite support layer 20, a display panel 10, a protection member 30, and a fixed plate 40.

[0045] Figures 1 to 8 ​​​​​

[0046] In the embodiment, the display panel 10 comprises a first body 110, a second body 120, and a bending part 130 connecting the first body 110 and the second body 120, the first body 110 is arranged on a first side of the composite support layer 20, and the second body 120 is arranged on a second side of the composite support layer 20 opposite to the first side.

[0047] In the embodiment, the protection member 30 comprises a first protection part 31, the first protection part 31 is located on a side of the bending part 130 away from the composite support layer 20 and extends to a side of the partial second body 120 away from the first body 110.

[0048] In the embodiment, the solidifying plate 40 comprises a first sub-plate 41, the first sub-plate 41 is arranged on a surface of the first protection part 31 away from the first body 110, and the Young's modulus of the solidifying plate 40 is greater than the Young's modulus of the protection member 30.

[0049] It should be noted that for the current narrow-frame display device, the support force of the edge region of the display device is insufficient, so that the impact resistance of the display screen is poor; in order to improve the impact resistance of the display screen, the edge region of the display screen is usually filled with glue material, and the morphology of the glue material away from the cover plate layer 50 is affected by external factors such as device and material surface tension, so the morphology of the glue material cannot be determined, and technical problems such as interference with the whole machine frame are prone to occur.

[0050] The present application arranges the first sub-plate 41 of the solidifying plate 40 on the surface of the first protection part 31 away from the first body 110, and the Young's modulus of the solidifying plate 40 is greater than the Young's modulus of the protection member 30, so that the morphology of the first protection part 31 in the solidification process is the same as the morphology of the solidifying plate 40, the uncertainty of the morphology of the first protection part 31 is eliminated, and technical problems such as interference between the protection member 30 and the whole machine frame are avoided.

[0051] The technical solutions of the present application will be described in combination with specific embodiments.

[0052] In the embodiment, the first body 110 has a display area and a non-display area arranged adjacent to the display area, for example, the non-display area surrounds the display area, so that the display area is surrounded by the non-display area. The display area is a region in the display panel 10 for displaying functions, and a plurality of display units for realizing the display function are arranged inside. The non-display area can be a frame region of the display panel 10, and functional components assisting the display units in the display area to display can be arranged inside.

[0053] In the embodiment, the second body 120 is provided with a binding terminal 121, which can be connected with an external circuit, and the binding terminal 121 transmits the signal input by the external circuit to the data wire, so as to drive the display panel 10 to display a picture. For example, the binding terminal 121 can be connected with a driving chip IC or the like, for providing power supply and driving signal and the like for the display panel 10.

[0054] In the embodiment, a plurality of fan-out wires are arranged in the bending part 130, so as to realize data transmission between the second body 120 and the first body 110.

[0055] Please refer to Figure 4 , Figure 4 is a schematic view of the display panel 10 of the present application. The display panel 10 can include a substrate 140, a driving circuit layer 150 arranged on the substrate 140, a pixel definition layer 160 and a light emitting device layer 170 arranged on the driving circuit layer 150, and an encapsulation layer 180 arranged on the pixel definition layer 160.

[0056] In the embodiment, the substrate 140 supports each layer arranged on the substrate 140. When the display panel is a bottom emission light emitting display device or a double-sided emission light emitting display device, a transparent substrate is used. When the display panel is a top emission light emitting display device, a semi-transparent or opaque substrate and a transparent substrate can be used.

[0057] In the embodiment, the substrate 140 is made of an insulating material such as glass, quartz or polymer resin. The substrate 140 can be a rigid substrate or a flexible substrate which can be bent, folded, curled and the like. Examples of the flexible material for the flexible substrate include polyimide (PI), but are not limited to polyimide (PI).

[0058] Please refer to Figure 4 , the driving circuit layer 150 can include a plurality of thin film transistors, which can be etch stop type, back channel etch type, or divided into bottom gate thin film transistor, top gate thin film transistor and the like according to the position of the gate and the active layer, and the specific structure is not limited. For example, Figure 4 The thin film transistor shown in the above embodiment is a top gate type thin film transistor, which can include a light shielding unit 151 arranged on a substrate, a buffer layer 152 arranged on the light shielding unit 151, an active layer 153 arranged on the buffer layer 152, a gate insulating layer 154 arranged on the active layer 153, a gate layer 155 arranged on the gate insulating layer 154, an interlayer insulating layer 156 arranged on the gate layer 155, a source-drain layer 157 arranged on the interlayer insulating layer 156, and a planarization layer 158 arranged on the source-drain layer 157. Figure 4The structure of the thin film transistor is only an example of the present application, and other types of thin film transistors are also applicable to the present application.

[0059] Referring to Figure 4 The light emitting device layer 170 can further include an anode layer 171 disposed on the planar layer 158, a light emitting layer 172 disposed on the anode layer 171, and a cathode layer 173 disposed on the light emitting layer 172. The anode layer 171 includes a plurality of anodes, the pixel definition layer 160 includes a plurality of pixel openings corresponding to the plurality of anodes one-to-one, and each pixel opening corresponds to an upper surface of an exposed anode, and the light emitting layer can include a plurality of light emitting pixels corresponding to the plurality of anodes one-to-one.

[0060] Referring to Figure 4 The encapsulation layer 180 is disposed on the pixel definition layer 160 and continuously covers the plurality of pixel openings and the plurality of light emitting pixels; wherein the encapsulation layer 180 can include at least a first inorganic encapsulation layer 181, a first organic encapsulation layer 182, and a second inorganic encapsulation layer 183 disposed on the pixel definition layer 160 in a stacked manner.

[0061] Referring to Figure 2 and Figure 3 The display module 100 further includes a polarizer PL, a cover layer 50, and an optical adhesive layer 60 disposed between the polarizer PL and the cover layer 50, and the cover layer 50 is bonded to the polarizer PL layer through the optical adhesive layer 60.

[0062] In the present embodiment, the cover layer 50 can be provided with an ink layer 70 on the side close to the optical adhesive layer 60, and the ink layer 70 can be used to shield the peripheral area of the display module 100, so that the ink layer 70 can define the edge area of the display module 100.

[0063] Referring to Figure 2 and Figure 3 The display module 100 further includes a composite support layer 20 disposed between the first body 110 and the second body 120, and the composite support layer 20 includes a first back plate 21, a second back plate 22, and a functional support layer 23 disposed between the first back plate 21 and the second back plate 22, the first back plate 21 is in contact with the first body 110, and the second back plate 22 is in contact with the second body 120.

[0064] In the present embodiment, the materials of the first back plate 21 and the second back plate 22 can include polyethylene terephthalate, etc.

[0065] In the embodiment, the functional support layer 23 can include a heat dissipation buffer layer 231 (Super Clean Foam, SCF) and a filling adhesive layer 232 (Stiffener, STF), and the filling adhesive layer 232 is arranged between the second back plate 22 and the heat dissipation buffer layer 231; the heat dissipation buffer layer 231 can include a grid adhesive layer, a foam layer and a metal layer arranged in sequence, or a grid adhesive layer, a foam layer, a polyimide layer and a metal layer arranged in sequence.

[0066] It should be noted that for the folding display device, the functional support layer 23 can include a stack structure of a buffer layer, a rigid layer and a heat dissipation layer, the material of the buffer layer can be a foam or a polyimide layer, the material of the rigid layer can be stainless steel, a metal titanium layer or a carbon fiber, and the material of the heat dissipation layer can be graphite or a copper layer.

[0067] In the embodiment, the boundary of the heat dissipation buffer layer 231 near the side of the bending part 130 is inwardly recessed relative to the boundary of the first back plate 21 near the side of the bending part 130, and the boundary of the filling adhesive layer 232 near the side of the bending part 130 is inwardly recessed relative to the boundary of the second back plate 22 near the side of the bending part 130.

[0068] In the embodiment, the display module 100 further includes a protective adhesive layer 80 arranged on the display panel 10, and the protective adhesive layer 80 covers the bending part 130 and part of the first body 110 and part of the second body 120.

[0069] In the embodiment, the material of the protective adhesive layer 80 can be ultraviolet curing adhesive.

[0070] It should be noted that the technical solution of the present application is applicable to both non-folding display devices and folding display devices; for non-folding display devices, the cover plate layer of the present application can be a hard cover plate, and for folding display devices, the cover plate layer can be an ultrathin glass and a protective layer with optical adhesive.

[0071] Please refer to the accompanying drawings Figure 2 and Figure 5 , Figure 2 and Figure 3 are the same or similar, except that Figure 2 the cover plate layer 50 in the embodiment includes a planar part 510 and a curved part 520 located at the periphery of the planar part 510, and the curved part 520 includes a plurality of side edge sub-parts 521 located at the periphery of the planar part 510 and a corner sub-part 522 located between adjacent two side edge sub-parts 521.

[0072] In the embodiment, the first protective part 31 is connected with at least the surface of the bending part 130 away from the composite support layer 20, the side edge sub-part 521 corresponding to the bending part 130 and the adjacent corner sub-part 522.

[0073] Please refer to Figure 2 and Figure 3 The first protection part 31 includes a first retaining wall 311 and a second retaining wall 312 arranged on both sides of the first retaining wall 311. The second retaining wall 312 can include a first sub-part 312a and a second sub-part 312b arranged at intervals. The first sub-part 312a is arranged close to the central region of the display module 100, and the second sub-part 312b is arranged away from the central region of the display module 100.

[0074] In this embodiment, the first retaining wall 311 and the second retaining wall 312 can be formed by using a dispensing process. For example, the second retaining wall 312 is formed by using a first dispensing process, and after the second retaining wall 312 is cured, the first retaining wall 311 is formed inside the second retaining wall 312 by using a second dispensing process.

[0075] In this embodiment, since the second retaining wall 312 and the first retaining wall 311 are formed in different dispensing processes, the gelation rates of the second retaining wall 312 and the first retaining wall 311 of the present application are different.

[0076] It should be noted that the gelation rate of the present application refers to the mass fraction of the gel part formed during the crosslinking process of the polymer, which characterizes the crosslinking degree of the polymer. The gelation rate is related to the type and content of the crosslinking agent, as well as the reaction temperature, time and pressure and other reaction conditions. Therefore, the second retaining wall 312 and the first retaining wall 311 of the present application have different gelation rates, which can characterize the formation of the second retaining wall 312 and the first retaining wall 311 in different process steps.

[0077] In this embodiment, since the first protection part 31 is arranged, an acting force can be generated on the bending part 130 to stabilize its shape, so as to reduce the problem that the size of the lower bezel is large due to the expansion of the bending part 130. That is, compared with the bending part 130 which is not acted on, the bending part 130 acted on by the first protection part 31 can be closer to the display area AA of the display panel 10, so that the size of the lower bezel is smaller.

[0078] In this embodiment, the Young's modulus of the first sub-part 312a and the second sub-part 312b is greater than or equal to the Young's modulus of the first retaining wall 311. When the display module 100 is subjected to impact, since the Young's modulus of the second sub-part 312b which is in direct contact with the outside is large, its anti-deformation ability is strong, and the Young's modulus of the first retaining wall 311 located inside it is small, which can absorb the stress received to play a buffering role, so as to reduce the stress transmitted to the display area AA. At the same time, the arrangement of the first sub-part 312a can further resist or buffer the stress.

[0079] Secondly, the Young's modulus of the first sub-part 312a and the second sub-part 312b are both greater than or equal to the Young's modulus of the first barrier wall 311, which can reduce the risk of deformation of the appearance of the protective member 30, and the protective member 30 can absorb more stress through the buffering effect of the internal first barrier wall 311; in the process, the second barrier wall 312 with a larger Young's modulus can be formed first to fix the appearance shape of the protective member 30, and then the internal first barrier wall 311 can be made, which can improve the reliability of the appearance shape of the protective member 30.

[0080] At the same time, the Young's modulus of the first barrier wall 311 can also be greater than or equal to the Young's modulus of the second barrier wall 312. That is, the Young's modulus of the second sub-part 312b directly contacted with the outside world is smaller, which can absorb more stress to reduce the release of stress, and the Young's modulus of the first barrier wall 311 located on the inner side is larger, which has stronger anti-deformation ability and can better block the stress to reduce the risk of stress transmission to the display area. The first sub-plate 41 can further resist or buffer the stress.

[0081] In the embodiment, the Young's modulus of the second sub-part 312b can be greater than or equal to the Young's modulus of the first sub-part 312a. That is, the Young's modulus of the second sub-part 312b directly contacted with the outside world in the protective member 30 is larger, thereby reducing the risk of external deformation of the protective member 30; secondly, when they are equal, the same material can be used to make both at the same time to improve the production efficiency.

[0082] In the embodiment, since the structure directly contacted with the outside world is the second sub-part 312b when the display module 100 is subjected to impact, the application can increase the anti-deformation ability of the second sub-part 312b by making the width of the second sub-part 312b greater than or equal to the width of the first sub-part 312a.

[0083] Please refer to Figure 2 and Figure 3 Since the second barrier wall 312 of the application is formed by layer-by-layer dispensing and stacking from the side close to the display panel 10 to the side away from the display panel 10 by using the dispensing process, and because the glue material has a certain flowability, the width of the first sub-part 312a close to the display panel 10 is greater than or equal to the width of the first sub-part 312a away from the display panel 10, the width of the second sub-part 312b close to the display panel 10 is greater than or equal to the width of the second sub-part 312b away from the display panel 10, that is, the two second barrier walls 312 close to the display panel 10 have a larger width.

[0084] In the embodiment, since the second retaining wall 312 is formed by layer-by-layer dispensing and stacking, the first sub-part 312a and the second sub-part 312b of the second retaining wall 312 each include a plurality of retaining wall units 312c connected along the thickness direction of the second retaining wall 312, and the outer wall of the retaining wall unit 312c is convex, for example Figure 2 .

[0085] Meanwhile, a corresponding process can be used to make the outer wall of the second retaining wall 312 perpendicular to the cover layer 50, for example Figure 3 ; if the edge of the cover layer 50 is curved, the side surface of the second sub-part 312b close to the edge of the cover layer 50 can be perpendicular to the tangent plane of the cover layer 50 at the intersection of the side surface.

[0086] In the embodiment, the main material of the second retaining wall 312 and the first retaining wall 311 can be the same or different, for example, the main material of the second retaining wall 312 and the first retaining wall 311 can be a polymer material such as an epoxy system or an acrylic system.

[0087] In the embodiment, different types and / or different amounts of particles can be doped in the corresponding main material to make the Young's modulus of the second retaining wall 312 and the first retaining wall 311 different.

[0088] Please refer to Figure 7 , the protector 30 further includes a second protection part 32 connected with the first protection part 31, the first protection part 31 and the second protection part 32 form a closed first annular structure, and the first annular structure covers the periphery of the display panel 10.

[0089] In the embodiment, in order to improve the impact resistance of the edge of the display module 100, the display panel 10 can be provided with a ring of protection material around the periphery, and the materials of the first protection part 31 and the second protection part 32 can be the same and prepared in the same process; for example, a ring of second retaining walls is formed around the periphery of the display panel by using a first dispensing process, and then a ring of first retaining walls is formed in the second retaining walls by using a second dispensing process.

[0090] It should be noted that the second protection part 31 of the present application also includes the first retaining wall 311 and the second retaining wall 312 arranged on both sides of the first retaining wall 311, that is, the first retaining wall 311 in the second protection part 32 can be formed in the same process as the first retaining wall 311 in the first protection part 31, and the second retaining wall 312 in the second protection part 32 can be formed in the same process as the second retaining wall 312 in the first protection part 31.

[0091] Please refer to Figure 2 and Figure 3The display module 100 also includes a third protective part 33 connected to the first barrier wall 311. At least part of the third protective part 33 is located in the enclosed space between the bending part 130 and the composite support layer 20. At the same time, the gelation rate of the third protective part 33 is different from that of the first barrier wall 311.

[0092] In this embodiment, the third protective part 33 can be formed by a dispensing process.

[0093] For example, please see Figure 6 Before the display panel 10 is bent, the filling adhesive layer 232 and the second back plate 22 are disposed on the side of the second body 120 away from the light-emitting surface 10a, and the first back plate 21 and the heat dissipation buffer layer 231 can be disposed on the side of the first body 110 away from the light-emitting surface 10a.

[0094] exist Figure 6 In the structure, a protective material 33a is formed on the surface of the bent portion 130 away from the light-emitting surface 10a of the display panel 10 using a dispensing process. Next, after the protective material 33a is cured for the first time, the second body 120 is bent to the side of the first body 110 away from the light-emitting surface 10a, and the protective material 33a is positioned within the enclosed space WTL between the bent portion 130, the filling adhesive layer 232, and the heat dissipation buffer layer 231, and the protective material 33a is cured for the second time. Finally, using a dispensing process, a first protective portion 31, connected to the third protective portion 33, is formed on the surface of the bent portion 130 away from the composite support layer 20, to form... Figure 2 or Figure 3 The structure.

[0095] It should be noted that, since the third protective part 33 and the first barrier wall 311 are cured in different curing processes, the gelation rate of the third protective part 33 and the gelation rate of the first barrier wall 311 are different.

[0096] In this embodiment, the main material of the third protective part 33 can be the same as the main material of the first protective part 31.

[0097] In this embodiment, the third protective part 33 can be a thermosetting material, and the first protective part 31 and the second protective part 32 can be thermosetting or photocurable materials. Since the third protective part 33 is located within the enclosed space WTL, and the enclosed space WTL is a non-transparent area, a thermosetting material is required for the third protective part 33 to cure completely. Meanwhile, since the first protective part 31 and the second protective part 32 are mainly used to buffer the bent part 130, the curing rate of the first protective part 31 and the second protective part 32 is not limited, that is, the first protective part 31 can be a thermosetting or photocurable material.

[0098] Please seeFigure 2 The space between the cover plate layer 50 and the bend 130 is filled with compensating adhesive 50a, and the gelation rate of the filler adhesive is different from that of the first retaining wall 311. When the area of ​​the first sub-part 312a and the second sub-part 312b is filled in the first retaining wall 311, since there is a small gap between the cover plate layer 50 and the bend 130, the compensating adhesive 50a can be filled in this area before the second retaining wall 312 is installed, and the second retaining wall 312 and the first retaining wall 311 are installed after the compensating adhesive 50a has cured, that is, the gelation rate of the filler adhesive is different from that of the first retaining wall 311.

[0099] In the display module 100 of this application, the display module 100 also includes a driver chip IC disposed on the side of the second body 120 away from the first body 110 and a shielding film 122 covering the driver chip IC, and the driver chip IC is bonded to the bonding terminal 121 in the second body 120.

[0100] In this embodiment, the first protective portion 31 may cover the bent portion 130 and at least a portion of the second body 120, and the first protective portion 31 is spaced apart from the driver chip IC in the direction from the bent portion 130 to the second body 120; for example Figure 3 The boundary of the first protective part 31 does not exceed the boundary of the protective adhesive layer 80. Figure 2 The boundary of the first protective part 31 can exceed the boundary of the protective adhesive layer 80.

[0101] Please see Figure 2 and Figure 3 The first sub-board 41 at least covers the surface of the first barrier wall 311 away from the display panel 10. Since the first barrier wall 311 and the second barrier wall 312 are formed in two different curing processes, and the morphology of the side of the first barrier wall 311 away from the cover plate layer 50 is easily affected by external factors such as equipment and material surface tension, the morphology of the first barrier wall 311 is uncertain, easily leading to technical problems such as interference with the overall frame. However, by covering the surface of the first barrier wall 311 away from the cover plate layer 50 with the first sub-board 41, the morphology of the first barrier wall 311 can be made the same as that of the fixed plate 40, eliminating the uncertainty in the morphology of the first protective part 31 and avoiding technical problems such as interference between the protective part 30 and the overall frame.

[0102] It should be noted that the fixed plate 40 of this application needs to be bonded to the adhesive material of the first retaining wall 311 before the first retaining wall 311 is cured, so as to avoid the fixed plate 40 being unable to affect the morphology of the first retaining wall 311 after the first retaining wall 311 is cured; at the same time, the curing process includes pre-curing and solid curing, and the fixed plate 40 of this application can be bonded to the adhesive material of the first retaining wall 311 after the first retaining wall 311 is pre-cured.

[0103] In the present embodiment, at least one of the two ends of the first sub-plate 41 in the width direction of the first sub-plate 41 is arranged at least partially overlapping the corresponding second barrier wall 312; for example, in the structure of Figure 2 and Figure 3 , the two ends of the first sub-plate 41 in the width direction can be located within the corresponding second barrier wall 312, or the two ends of the first sub-plate 41 in the width direction can be flush with the two ends of the corresponding second barrier wall 312, that is, the width of the first sub-plate 41 can be less than or equal to the width of the corresponding first protection part 31.

[0104] In the present embodiment, referring to Figure 7 , since the protection member 30 further comprises a second protection part 32 connected with the first protection part 31, in order to ensure the appearance of the second protection part 32, the solidifying plate 40 of the present application further comprises a second sub-plate 42, a third sub-plate 43 and a fourth sub-plate 44 connected with the first sub-plate 41, the first sub-plate 41, the second sub-plate 42, the third sub-plate 43 and the fourth sub-plate 44 form a closed second annular structure, and the second sub-plate 42, the third sub-plate 43 and the fourth sub-plate 44 are arranged on the surface of the second protection part 32 away from the display panel 10.

[0105] For example, the first sub-plate 41 and the third sub-plate 43 correspond to the short side of the display module 100, and the second sub-plate 42 and the fourth sub-plate 44 correspond to the long side of the display module 100, that is, the first sub-plate 41 and the third sub-plate 43 are arranged in parallel, the second sub-plate 42 and the fourth sub-plate 44 are arranged in parallel, and the length of the first sub-plate 41 and the third sub-plate 43 is less than the length of the second sub-plate 42 and the fourth sub-plate 44; at the same time, the first sub-plate 41 is the area where the bottom frame of the display module 100 is located, the third sub-plate 43 is the area where the top frame of the display module 100 is located, and the second sub-plate 42 and the fourth sub-plate 44 are respectively the area where the left frame and the right frame of the display module 100 are located.

[0106] It should be noted that since the amount of adhesive material cannot be estimated, it is possible that after the solidifying plate 40 is attached to the protection member 30, the adhesive material will overflow to the surface of the solidifying plate 40, affecting the flatness of the surface of the solidifying plate 40.

[0107] In the present embodiment, at least one of the first sub-plate 41, the second sub-plate 42, the third sub-plate 43 and the fourth sub-plate 44 is further provided with a hollow hole HL at least partially overlapping the first barrier wall 311 in the corresponding protection part, and the hollow hole HL penetrates through the corresponding sub-plate in the thickness direction of the display panel 10.

[0108] For example, referring to Figure 7 and Figure 8In the present application, the hollow holes HL can be arranged on the first sub-plate 41, the second sub-plate 42, the third sub-plate 43 and the fourth sub-plate 44 of the fixed plate 40 to improve the technical problem of glue overflow.

[0109] In the present embodiment, the distance L1 between two adjacent hollow holes HL on the first sub-plate 41 and the third sub-plate 43 is less than the distance L2 between two adjacent hollow holes HL on the second sub-plate 42 and the fourth sub-plate 44.

[0110] Since the first sub-plate 41 and the third sub-plate 43 correspond to the short side of the display module 100, when the number of hollow holes HL arranged on the first sub-plate 41 and the third sub-plate 43 is too large, the glue area of the glue material on the middle frame corresponding to the first sub-plate 41 and the third sub-plate 43 and the fixed plate 40 will be reduced, while the second sub-plate 42 and the fourth sub-plate 44 correspond to the long side of the display module 100, even if the number of hollow holes HL is too large, the glue area of the glue material on the middle frame corresponding to the second sub-plate 42 and the fourth sub-plate 44 and the fixed plate 40 is still within the design range, so the distance L2 between two adjacent hollow holes HL on the second sub-plate 42 and the fourth sub-plate 44 can be greater than the distance L1 between two adjacent hollow holes HL on the first sub-plate 41 and the third sub-plate 43.

[0111] In the present embodiment, the aperture of the hollow hole HL is less than or equal to one half of the width of the fixed plate 40 at the position of the hollow hole HL.

[0112] In the present embodiment, in order to also avoid the reduction of the glue area of the glue material on the middle frame and the fixed plate 40, the distance between two adjacent hollow holes HL in the middle region of the sub-plate of the fixed plate 40 is greater than the distance between two adjacent hollow holes HL in the edge region; for example, in the first sub-plate 41, the second sub-plate 42, the third sub-plate 43 and the fourth sub-plate 44, the hollow holes HL are mainly concentrated in the edge region of the corresponding sub-plate.

[0113] It should be noted that since the impact resistance of the area where the bending part 130 is located is poor, the present application can only arrange the first protection part 31 corresponding to the first sub-plate 41 in the lower frame region of the display module 100, that is, the hollow holes HL can only be arranged on the first sub-plate 41.

[0114] Please refer to Figure 5 The corner sub-part 522 of the cover layer 50 is a Gaussian surface, and the flexible material corresponding to the corner sub-part 522 will be subjected to stress in various directions, causing the region to be prone to wrinkles; the present application can increase the material of the protection part 30 corresponding to the corner sub-part 522, that is, the width of the protection part 30 in the corner sub-part 522 is greater than the width of the protection part 30 in the non-corner sub-part 522, thereby increasing the Young's modulus of the protection part 30 in the corner sub-part 522 to fix the Gaussian surface and reduce the degree of freedom of deformation in the region, thereby improving the reliability of the product.

[0115] Please refer to Figure 7 and Figure 8 The fixed plate 40 further comprises corner sub-plates 40a connecting the first sub-plate 41, the second sub-plate 42, the third sub-plate 43 and the fourth sub-plate 44, the corner sub-plates 40a are arranged corresponding to the corner sub-sections 522, and the width of the corner sub-plates 40a is greater than the width of the first sub-plate 41, the second sub-plate 42, the third sub-plate 43 and the fourth sub-plate 44.

[0116] In the embodiment, in order to adapt to the material of the protection member 30 corresponding to the corner sub-sections 522, the width of the corner sub-plates 40a is increased so that the topography of each area of the protection member 30 is the same as that of the fixed plate 40.

[0117] In the embodiment, the surface of the cover plate layer 50 close to the first protection section 31 is parallel to the surface of the fixed plate 40 away from the cover plate layer 50, for example Figure 2 and Figure 3 The surface of the fixed plate 40 away from the cover plate layer 50 can also have the same topography as the corresponding middle frame to avoid interference with the middle frame.

[0118] In the embodiment, the thickness of the fixed plate 40 is less than the thickness of the protection member; for example, the thickness of the fixed plate 40 can be greater than or equal to 0.01 mm and less than or equal to 2 mm.

[0119] In the embodiment, the material of the fixed plate 40 can include one of metal, glass, polymethyl methacrylate, polycarbonate and polyethylene terephthalate.

[0120] The application further provides a display device comprising a middle frame and the display module, the protection member and the fixed plate can be arranged in the area between the middle frame and the display module to improve the impact resistance of the display device in the edge area. The display device can include a mobile phone, a television, a notebook computer and other electronic devices.

[0121] In the above embodiments, the description of each embodiment focuses on different aspects, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0122] The above has carried out the detailed introduction to the display module and the display device provided by the embodiment of the application, the principle and the implementation mode of the application are described in the text by applying specific examples, the above embodiment is only used for helping understanding the technical scheme of the application and its core idea; the ordinary skilled in the art should understand that: it can still modify the technical scheme recorded by the foregoing each embodiment, or equivalent replacement is carried out to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the application.

Claims

1. A display module, characterized by The display panel comprises a first body, a second body, and a bending portion connecting the first body and the second body, the first body is arranged on a first side of the composite support layer, and the second body is arranged on a second side of the composite support layer opposite to the first side. The protection member comprises a first protection portion, the first protection portion is located on a side of the bending portion away from the composite support layer and extends to a side of part of the second body away from the first body. The first protection portion comprises a first barrier wall and second barrier walls arranged on both sides of the first barrier wall, the second barrier walls comprise first sub-portions and second sub-portions, the first sub-portions are arranged close to a central region of the display module, the second sub-portions are arranged away from the central region of the display module, and the Young's modulus of the first sub-portions and the second sub-portions is greater than or equal to the Young's modulus of the first barrier wall. The first sub-portion and the second sub-portion each comprise a plurality of barrier wall units connected along the thickness direction of the second barrier wall, and the outer wall of the barrier wall unit is convex. The first sub-plate at least covers the surface of the first barrier wall away from the display panel. At least one of the two end portions of the first sub-plate in the width direction of the first sub-plate is arranged at least partially overlapping the corresponding second barrier wall. The first sub-plate is further provided with a hollow hole at least partially overlapping the first barrier wall in the first protection portion, and the hollow hole penetrates the first sub-plate in the thickness direction of the display panel.

2. The display module of claim 1, wherein, The protection member further comprises a second protection portion connected with the first protection portion, the second protection portion comprises the first barrier wall and the second barrier walls arranged on both sides of the first barrier wall, the first protection portion and the second protection portion form a closed first annular structure, and the first annular structure covers the periphery of the display panel.

3. The display module of claim 2, wherein, The first sub-plate, the second sub-plate, the third sub-plate, and the fourth sub-plate form a closed second annular structure, and the second sub-plate, the third sub-plate, and the fourth sub-plate are arranged on the surface of the second protection portion away from the display panel.

4. The display module of claim 2, wherein, At least one of the first sub-plate, the second sub-plate, the third sub-plate, and the fourth sub-plate is further provided with a hollow hole at least partially overlapping the first barrier wall in the corresponding protection portion, and the hollow hole penetrates the corresponding sub-plate in the thickness direction of the display panel.

5. The display module of claim 2, wherein, The first sub-plate and the third sub-plate are arranged in parallel, the second sub-plate and the fourth sub-plate are arranged in parallel, and the length of the first sub-plate and the third sub-plate is less than the length of the second sub-plate and the fourth sub-plate. ​ 6. The display module of claim 5, wherein, ​ 7. The display module of claim 6, wherein, ​ The interval between two adjacent hollow holes on the first sub-plate and the third sub-plate is smaller than the interval between two adjacent hollow holes on the second sub-plate and the fourth sub-plate.

8. The display module of claim 4 or 6, wherein, The aperture of the hollow hole is smaller than or equal to half of the width of the fixed plate at the position of the hollow hole.

9. The display module of claim 4 or 6, wherein, In the sub-plates of the fixed plate, the interval between two adjacent hollow holes in the middle region is greater than the interval between two adjacent hollow holes in the edge region.

10. The display module of claim 5, wherein, The fixed plate further comprises corner sub-plates connecting the first sub-plate, the second sub-plate, the third sub-plate and the fourth sub-plate, and the width of the corner sub-plates is greater than the width of the first sub-plate, the second sub-plate, the third sub-plate and the fourth sub-plate.

11. The display module of claim 2, wherein, The display module further comprises a cover layer arranged on the side of the first body away from the composite support layer, the cover layer comprises a planar part and a curved part located at the periphery of the planar part, and the curved part comprises a plurality of side edge sub-parts located at the periphery of the planar part and corner sub-parts located between two adjacent side edge sub-parts. The first protection part is connected to at least the surface of the bending part away from the composite support layer, and the side edge sub-part and the adjacent corner sub-part corresponding to the bending part.

12. The display module of claim 11, wherein, The surface of the cover layer on the side close to the first protection part corresponds to the surface of the fixed plate, and the surface of the fixed plate on the side away from the cover layer is parallel to the surface of the cover layer.

13. The display module of claim 11, wherein, The cover layer and the bending part are further filled with compensation glue, and the gelation rate of the compensation glue is different from the gelation rate of the first barrier. 14.The display module of any one of claims 1-7, 10-13, wherein, The protection member further comprises a third protection part connected to the first barrier, and at least part of the third protection part is located in the enclosed space between the bending part and the composite support layer. The gelation rate of the third protection part is different from the gelation rate of the first barrier.

15. The display module of any one of claims 1-7, 10-13, wherein, The width of the first sub-part on the side close to the display panel is greater than or equal to the width of the first sub-part on the side away from the display panel, and the width of the second sub-part on the side close to the display panel is greater than or equal to the width of the second sub-part on the side away from the display panel. 16.The display module of any one of claims 1-7, 10-13, wherein, The thickness of the fixed plate is smaller than the thickness of the protection member.

17. The display module of any one of claims 1-7, 10-13, wherein, The material of the fixed plate comprises one of metal, glass, polymethyl methacrylate, polycarbonate and polyethylene terephthalate.

18. A display device comprising: The display device comprises the display module and the middle frame as claimed in any one of claims 1 to 17, and the protection member and the fixed plate are arranged in the area between the middle frame and the display panel. The display device comprises the display module and the middle frame as claimed in any one of claims 1 to 17, and the protection member and the fixed plate are arranged in the area between the middle frame and the display panel.

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