Display module, preparation method thereof and display device

Abstract

The invention provides a display module, a preparation method thereof and a display device. The display module comprises a display panel which comprises a display section and a reflexed section which are oppositely arranged, and a bending section which is connected with the display section and the reflexed section in a bending manner; the supporting structure is arranged between the display section and the reflexed section; the supporting structure at least comprises a bonding layer and a metal layer; the conductive layer is arranged on one side, deviating from the display section, of the reflexed section; the conductive layer is used for electrically connecting the reflexed section with the metal layer; at least one of the conductive layer and the bonding layer is of a multi-layer structure; in the first direction, the side edge of the conductive layer, the side edge of the reflexed section and the side edge of the bonding layer are of step-shaped structures which are expanded outwards in sequence. The transition of the step-shaped structure is smooth, the gap between the adjacent steps in the first direction can be completely plugged during glue injection, the plugging effect on the protection glue during glue injection is improved, and the protection glue is prevented from polluting the display panel.

Description

Technical Field

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

[0002] With the development of display technology, people are increasingly pursuing displays with high screen-to-body ratios, resulting in increasingly demanding bezel sizes. Narrow-bezel and borderless displays are becoming increasingly popular in the market. Currently, narrow-bezel and borderless displays are typically used with a four-sided glue injection process to encapsulate the four-sided bezels of the display. Because the display panel's bend has steps on both sides, if the gaps between the steps are not properly sealed, glue may flow into the display panel through the gaps in the steps during four-sided glue injection, causing contamination of the display panel and display anomalies. Summary of the Invention

[0003] In response to the problems in the prior art, the present invention aims to provide a display module and a method for preparing the same, as well as a display device, to reduce the probability of glue flowing into the display panel during glue injection and improve the glue injection yield of the display panel.

[0004] In a first aspect, an embodiment of the present application provides a display module, comprising:

[0005] The display panel includes a display segment and a reflective segment that are arranged opposite to each other, and a bending segment that is bent and connects the display segment and the reflective segment;

[0006] A supporting structure is provided between the display segment and the inflected segment; the supporting structure comprises at least an adhesive layer and a metal layer;

[0007] a conductive layer disposed on a side of the inflected segment facing away from the display segment; the conductive layer is used to electrically connect the inflected segment and the metal layer; at least one of the conductive layer and the adhesive layer is a multi-layer structure;

[0008] Along the first direction, the side edge of the conductive layer, the side edge of the inflected segment, and the side edge of the adhesive layer are step-shaped structures that expand outward in sequence.

[0009] In a second aspect, an embodiment of the present application provides a method for preparing a display module, comprising the steps of:

[0010] A display panel is provided, comprising a display segment, a bending segment and a reflex segment;

[0011] A support structure is provided on the backlight side of the display segment, and the inflected segment is arranged opposite to the display segment; the support structure includes at least an adhesive layer and a metal layer;

[0012] A conductive layer is provided on a side of the inflected segment facing away from the display segment, the conductive layer electrically connecting the inflected segment to the metal layer; at least one of the conductive layer and the adhesive layer is a multi-layer structure; along a first direction, side edges of the conductive layer, the inflected segment, and the adhesive layer form a step-like structure that expands outward in a vertical projection on the inflected segment;

[0013] Providing a glue injection mold, the glue injection mold having a side surface, the side surface abutting against a side edge of the conductive layer, a side edge of the inflected section, and a side edge of the adhesive layer; applying pressure to the glue injection mold to deform the side surface, wherein the deformed side surface is used to fill a gap between two adjacent steps in a first direction;

[0014] A protective glue is injected into the glue injection mold, and the protective glue fills the first gap and the second gap of the display module.

[0015] In a third aspect, an embodiment of the present application provides a display device comprising the display module described in the first aspect of the present invention.

[0016] The display module, preparation method thereof, and display device provided by the present invention have the following advantages:

[0017] By setting the side edges of the conductive cloth, the side edges of the folded section and the side edges of the adhesive layer as a step-like structure that expands outward in sequence along the first direction, it is convenient for the glue injection mold to completely fill the gap between two adjacent steps in the first direction. Then, when the protective glue is injected, the glue injection mold can block the protective glue from flowing along the second direction, avoiding the protective glue from overflowing into the display panel, thereby improving the preparation yield and display effect of the display module; by setting the conductive cloth or the adhesive layer as a multi-layer structure, the step transition between adjacent layers can be made smoother, thereby improving the ability of the glue injection mold to fill the gap between two adjacent steps and improving the sealing effect of the protective glue during glue injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0019] Figure 1 It is a structural diagram of a display module in the prior art;

[0020] Figure 2 It is a partial schematic diagram of the backlight side of a display module in the prior art;

[0021] Figure 3 yes Figure 2 Schematic cross-section along section line AA';

[0022] Figure 4A partial schematic diagram of the placement of the injection mold during injection is shown;

[0023] Figure 5 is a planar schematic diagram of a display module provided in one embodiment of the present application;

[0024] Figure 6 yes Figure 5 An enlarged schematic diagram of the location indicated by the box;

[0025] Figure 7 yes Figure 6 Schematic cross-section along section line BB';

[0026] Figure 8 is a structural diagram of a display module provided in another embodiment of the present application;

[0027] Figure 9 is a structural diagram of a display module provided in yet another embodiment of the present application;

[0028] Figure 10 is a structural diagram of a display module provided in yet another embodiment of the present application;

[0029] Figure 11 is a cross-sectional schematic diagram of a display module according to an embodiment of the present application;

[0030] Figure 12 is a schematic diagram of a display module provided in one embodiment of the application;

[0031] Figure 13 1 is a schematic diagram of a display module provided by an embodiment of the present application when injecting glue using an injection mold;

[0032] Figure 14 is a flow chart of a method for preparing a display module provided in one embodiment of the present application;

[0033] Figure 15 2 is a schematic diagram of a display device provided in one embodiment of the present application.

[0034] Reference numerals:

[0035] 10 display panel 30 conductive layer

[0036] 11 Display segment 31 First conductive layer

[0037] 12 bending section 32 second conductive layer

[0038] 13 Reflected segment 33 Third conductive layer

[0039] 20 Support structure 40 Protective glue

[0040] 21 Adhesive layer 50 Glue injection mold

[0041] 211 first bonding layer 60 dam glue

[0042] 212 second bonding layer b1 first gap

[0043] 213 Third bonding layer b2 Second gap

[0044] 22 Foam DETAILED DESCRIPTION

[0045] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Identical reference numerals in the drawings represent identical or similar structures, and thus repeated description thereof will be omitted.

[0046] In the description of this application, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this application, as well as features of different embodiments or examples, unless otherwise contradictory.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this application, "plurality" means two or more, unless otherwise specifically defined.

[0048] It should be further understood that the terms "comprise" and "include" indicate the presence of features, steps, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Thus, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C." Exceptions to this definition occur only when a combination of elements, functions, steps, or operations are inherently mutually exclusive in some way.

[0049] It will be apparent to those skilled in the art that various modifications and variations can be made in this application without departing from the spirit or scope of this application. Therefore, this application is intended to cover modifications and variations of this application that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. It should be noted that the embodiments provided in the examples of this application can be combined with each other without contradiction.

[0050] Figure 1 A cross-sectional schematic diagram of a display module in the prior art is shown; Figure 2 A partial schematic diagram of the backlight side of a display module in the prior art is shown; Figure 3 Shown Figure 2 Schematic cross-section along the section line AA'.

[0051] like Figure 1 As shown, from the cross-section XZ, the display module includes a display panel 10', a support structure 20', a conductive layer 30' and a protective glue 40'. The display panel 10' includes a display segment 11', a folded segment 13' and a bending segment 12' that is bent and connects the display segment 11' and the folded segment 13'. The support structure 20' is arranged between the display segment 11' and the folded segment 13' to provide support for the display panel 10' and prevent the display panel 10' from deformation. The two ends of the conductive layer 30' are respectively connected to the folded segment 13' and the support structure 20'. Protective glue 40' is provided in the first gap b1' between the bending segment 12' and the support structure 20', and in the second gap b2' between the bending segment 12' and the protective frame (not shown in the figure).

[0052] like Figure 2 As shown, the support structure 20 includes an adhesive layer 21' and a foam 22'. Along the first direction Y, the side edges of the conductive layer 30', the side edges of the inflected section 13' and the side edges of the adhesive layer 21' are sequentially retracted. Figure 3 As shown, from the cross-sectional view, the side edges of the conductive layer 30 ′, the side edges of the inflected section 13 ′ and the side edges of the adhesive layer 21 ′ are inverted step-like structures.

[0053] When injecting protective adhesive 40' into the first gap b1' and the second gap b2', a glue injection mold is required. The mold is provided with glue injection holes that connect the gaps (for example, the first gap b1' and the second gap b2') with the external environment. The injection holes are used to inject protective adhesive 40' from the external environment into the gaps. The protective adhesive 40' flows into the gaps through capillary action, completing the gap filling.

[0054] like Figure 2 As shown, arrows a1 and a2 show the direction of flow of some glue. Figure 1 and Figure 2When the glue flows along the first direction Y, it can fill the first gap b1' and the second gap b2'.

[0055] Figure 4 The figure shows a partial schematic diagram of the placement of the injection mold during injection. Figure 4 As shown, one end of the injection mold 50' is pressed on the top of the inverted step-shaped structure, and the other end of the injection mold 50' is pressed on the foam 22'. Figure 2 and Figure 3 When the glue flows along the first direction Y, since the side edges of the conductive layer 30', the side edges of the inverted section 13' and the side edges of the adhesive layer 21' are inverted step-like structures, the dam glue 60' cannot completely block the gaps between adjacent steps in the first direction Y. The protective glue 40' will flow into the display panel 10' along the second direction X from the unblocked gaps (such as Figure 2 The direction indicated by the arrow d1 and the direction indicated by the arrow d2 shown in the figure) causes pollution to the display panel 10' and affects the display of the display panel 10'.

[0056] To solve the above-mentioned problems, an embodiment of the present application provides a display module, comprising: a display panel, comprising a display segment and a reflected segment arranged opposite to each other, and a bending segment that is bent and connects the display segment and the reflected segment; a support structure, arranged between the display segment and the reflected segment; the support structure comprises at least an adhesive layer and a metal layer; a conductive layer, arranged on the side of the reflected segment away from the display segment; the conductive layer is used to electrically connect the reflected segment and the metal layer; at least one of the conductive layer and the adhesive layer is a multi-layer structure; along a first direction, the side edges of the conductive layer, the side edges of the reflected segment and the side edges of the adhesive layer are step-like structures that expand outward in sequence.

[0057] By setting the side edges of the conductive cloth, the side edges of the folded section and the side edges of the adhesive layer as a step-like structure that expands outward in sequence along the first direction, it is convenient for the glue injection mold to completely fill the gap between two adjacent steps in the first direction. Then, when the protective glue is injected, the glue injection mold can block the protective glue from flowing along the second direction, avoiding the protective glue from overflowing into the display panel, thereby improving the preparation yield and display effect of the display module; by setting the conductive cloth or the adhesive layer as a multi-layer structure, the step transition between adjacent layers can be made smoother, thereby improving the ability of the glue injection mold to fill the gap between two adjacent steps and improving the sealing effect of the protective glue during glue injection.

[0058] The above is the core idea of the present invention. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0059] Figure 5 A schematic diagram of a display module provided in one embodiment of the present application is shown; Figure 6 Shown Figure 5 Enlarged view of the location indicated by the box; Figure 7 Shown Figure 5 Schematic diagram of the cross section along the section line BB'. Figures 5 to 7 As shown, the display module includes a display panel 10 , a support structure 20 and a conductive layer 30 .

[0060] The display module provided in the embodiments of the present application can be applied to display devices such as televisions, mobile phones, watches, computers, laptops, tablet computers, etc. The present application does not limit the display device having the above-mentioned display module.

[0061] The display module may include an OLED display panel, a Quantum Dot Light Emitting Diode (QLED) display panel, or the like. OLED display panels are increasingly popular in the market due to their small size, portability, bendability, foldability, and narrow bezels. The following explanation of this application uses an OLED display panel as an example.

[0062] Specifically, the display panel 10 includes a display segment 11 and a folded segment 13 disposed opposite each other, and a bent segment 12 that bends and connects the display segment 11 and the folded segment 13. The display segment 11 includes a light-emitting element (OLED) and a pixel circuit (not shown) electrically connected to the light-emitting element. The folded segment 12 is provided with various wiring that electrically connects the display segment 11 and the folded segment 13. The folded segment 13 may be provided with a driver chip (not shown), which may be electrically connected to a flexible circuit board and a mainboard. The mainboard, flexible circuit board, and driver chip are used to provide various signals to the pixel circuits of the display segment 11. These signals are transmitted to the display segment 11 via various wirings, causing the light-emitting element of the display segment 11 to emit light, thereby displaying an image on the display segment 11.

[0063] The support structure 20 is provided between the display segment 11 and the inflection segment 13. The support structure 20 includes an adhesive layer 21, a metal layer (not shown in the figure), and a foam 22 stacked in sequence away from the display segment 11. The adhesive layer 21 is used to keep the bending segment 12 in a bent state. Metal has good heat dissipation properties, so the metal layer can serve as a heat dissipation layer for the display panel 10, used to quickly dissipate the heat generated when the display panel 10 is in operation, ensuring stable operation of the display panel 10; the metal layer can also be electrically connected to the ground point, so the metal layer can also serve as a ground layer. The conductive layer 30 electrically connects the inflection segment 13 to the metal layer, and static electricity conducted to the inflection segment 13 can be promptly discharged through the metal layer, thereby improving the antistatic ability and operational reliability of the display panel 10. For example, in some embodiments, the metal layer includes a conductive copper foil, which is electrically connected to the inflection segment 13 through the conductive layer 30. Furthermore, the conductive copper foil with heat dissipation function can serve as the grounding part of the display module, that is, the zero point of the display module.

[0064] Furthermore, the foam 22 has excellent elasticity and softness, preventing deformation of the display panel 10; absorbing impact forces to protect the panel from damage; and preventing dust and moisture from entering the display panel, thereby increasing its service life. The foam 22 and adhesive layer 21 serve as insulating layers to ensure electrical insulation between the display segment 11 and the inflected segment 13.

[0065] like Figure 7 As shown, in some embodiments, the conductive layer 30 is a multi-layer structure, and along the first direction Y, the side edges of each layer of the conductive layer 30 are stepped structures that expand outward in sequence. Figure 6 As shown, the conductive layer 30 includes a first conductive layer 31, a second conductive layer 32, and a third conductive layer 33, which are stacked in sequence, totaling three layers. In the first direction Y, the side edges of the second conductive layer 32 extend beyond the first conductive layer 31, and the side edges of the third conductive layer 33 extend beyond the second conductive layer 32. Furthermore, the side edges of the first conductive layer 31, the second conductive layer 32, the third conductive layer 33, the side edges of the inflected segment 13, and the side edges of the adhesive layer 21 form a stepped structure that expands outward in sequence. When viewed in the thickness direction Z, the stepped structure that expands outward in sequence is a step-like structure.

[0066] By configuring the conductive layer 30 as a multi-layer structure and expanding the side edges of each layer of the conductive layer 30 outward in sequence, the step transition between adjacent layers can be made smoother, thereby facilitating the sealing of the gap between two adjacent steps in the first direction Y.

[0067] It should be noted that in the embodiment of the present application, the conductive layer 30 is set to a multi-layer structure including three layers, but the present application does not limit this. In other embodiments of the present application, the conductive layer 30 can be set to a specific number of layers according to actual conditions.

[0068] Furthermore, in the embodiment of the present application, the conductive layer 30 may be a conductive cloth, but the present application does not limit this. In other embodiments of the present application, the conductive layer 30 may also be other conductive structures, which may be specifically configured according to actual conditions.

[0069] Furthermore, if Figure 8 As shown, in other embodiments, the adhesive layer 21 is a multi-layer structure, and along the first direction Y, the side edges of each layer of the adhesive layer 21 are stepped structures that expand outward in sequence. Figure 7 As shown, the adhesive layer 21 includes a first adhesive layer 211, a second adhesive layer 212, and a third adhesive layer 213, which are stacked in sequence, totaling three layers. In the first direction Y, the side edge of the second adhesive layer 212 extends beyond the first adhesive layer 211, and the side edge of the third adhesive layer 213 extends beyond the second adhesive layer 212. Furthermore, the side edges of the conductive layer 30, the side edges of the inflected segment 13, the side edges of the first adhesive layer 211, the side edges of the second adhesive layer 212, and the side edges of the third adhesive layer 213 form a stepped structure that expands outward in sequence. When viewed in the thickness direction Z, the stepped structure that expands outward in sequence is a step-like structure.

[0070] By setting the bonding layer as a multi-layer structure and expanding the side edges of each layer of the bonding layer outward in sequence, the step transition between adjacent layers can be made smoother, which facilitates blocking the gap between two adjacent steps in the first direction Y.

[0071] It should be noted that in the embodiment of the present application, the bonding layer 21 is set to a multi-layer structure including three layers, but the present application does not limit this. In other embodiments of the present application, the bonding layer 21 can be set to a specific number of layers according to actual conditions.

[0072] In one embodiment of the present application, the adhesive layer 21 is a prosthetic tape, but the present application does not limit this and can be set according to actual conditions.

[0073] Furthermore, if Figure 9 As shown, in some embodiments, the adhesive layer 21 is a multi-layer structure, and the conductive layer 30 is a multi-layer structure; along the first direction Y, the side edges of each layer of the adhesive layer 21 are step-like structures that expand outward in sequence. The side edges of each layer of the conductive layer 30 are step-like structures that expand outward in sequence. Exemplarily, the adhesive layer 21 includes a first adhesive layer 211, a second adhesive layer 212, and a third adhesive layer 213, a total of three layers; the conductive layer 30 includes a first conductive layer 31, a second conductive layer 32, and a third conductive layer 33, a total of three layers. The side edges of the three-layer conductive layer 30, the inflected section 13, and the side edges of the three-layer adhesive layer 21 are step-like structures that expand outward in sequence. When viewed in the thickness direction Z, the step-like structures that expand outward in sequence are step-like structures.

[0074] It should be noted that, in the present application, the conductive layer 30 and the adhesive layer 21 are both multilayer structures with three layers, but the present application does not impose any specific restrictions on this. The specific number of layers of the adhesive layer 21 and the conductive layer 30 can be set according to actual needs. For example, the conductive layer 30 and the adhesive layer 21 are both multilayer structures with two layers; or Figure 10 As shown, both the conductive layer 30 and the adhesive layer 21 are multi-layer structures. The conductive layer 30 includes a multi-layer structure of two layers, while the adhesive layer 21 includes a multi-layer structure of three layers.

[0075] Further, if Figure 6 As shown, the length d1 of the first portion of the side edge of the adhesive layer 21 extending beyond the side edge of the inflected section 13 is 0.2 mm to 1 mm. For example, the length d1 of the first portion of the side edge of the adhesive layer 21 extending beyond the side edge of the inflected section 13 is 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, and 0.9 mm.

[0076] Please continue reading Figure 6 The second portion of the side edge of the adhesive layer 21 is retracted into the side edge of the inflected section 13 by a length d2. By setting the second portion of the side edge of the adhesive layer to be retracted into the side edge of the inflected section 13, the adhesive layer is prevented from excessively adhering to the platform and collecting dust.

[0077] Further, if Figure 6 As shown, the length d3 of the side edge of the conductive layer 30 retracted from the side edge of the inflected section 13 is 0.2 mm to 2 mm. For example, the length d3 of the side edge of the conductive layer 30 retracted from the side edge of the inflected section 13 is 0.5 mm, 1 mm, or 1.5 mm.

[0078] Further, refer to Figure 11 and Figure 12 The display module further includes a protective adhesive 40, which covers at least part of the sidewall surface of the display segment 11 and the second gap b2 between the bending segment 12 and the protective frame (not shown in the figure). The first gap b1 between the bending segment 12 and the support structure 20 is part of the sidewall of the display segment 11. Figure 10 As shown, the protective glue 40 is arranged around the side wall of the display segment 11. The protective glue 40 covers all the side walls of the display segment 11 of the display panel 10, thereby sealing the side of the display segment 11 and providing better protection for the display segment 11. It should be noted that the number of side walls of the display segment 11 where the protective glue 40 is arranged is not limited to Figure 10 As shown in FIG, a protective glue 40 may be provided to cover two or three side walls of the display segment 11 , and the specific provision may be made according to actual needs.

[0079] It should be noted that if Figure 13As shown, the filling of the protective glue 40 requires the use of a glue injection mold 50. The glue injection mold 50 is provided with a glue injection hole that connects the gap and the external environment. The glue injection hole is used to inject the protective glue 40 from the external environment into the gap. The protective glue 40 flows into the gap through capillary action to complete the filling of the gap. Please continue to refer to Figure 13 The injection mold 50 has an inclined surface, which can abut against the step structure formed by the conductive layer 30, the inflected section 13 and the adhesive layer 21. By applying force to the injection mold 50, the silicone mold is deformed, and the deformed part can fill the gap between two adjacent steps in the first direction Y. Then, when the protective glue 40 is injected, the injection mold 50 blocks the gap between the two adjacent steps in the first direction Y, thereby preventing the protective glue 40 from flowing into the gap in the first direction Y, thereby reducing the probability of the protective glue 40 contaminating the display panel 10 and improving the yield of the display module.

[0080] After the protective glue 40 is cured, the glue injection mold 50 is removed, thereby completing the glue injection process.

[0081] Furthermore, if Figure 13 As shown, compared with the display module of the prior art (reference Figure 3 ), if the display module does not have a dam glue 60, the gaps between adjacent steps are filled with the glue injection mold 50. The absence of the dam glue 60 also eliminates the dispensing and curing steps of the dam glue 60, saving steps in display module preparation, reducing display module production costs and production cycle.

[0082] Furthermore, if Figures 7 to 10 As shown, in some embodiments, the display module further includes a dam glue 60, which is provided in the gap between two adjacent steps in the first direction Y. The dam glue 60 fills the gap between the two adjacent steps in the first direction Y. During glue injection, it can further reduce the overflow of the protective glue 40 into the display panel 10 along the second direction X, reduce the risk of glue contamination, and improve the display performance of the display panel. In addition, because at least one of the conductive layer 30 and the adhesive layer 21 is a multi-layer structure, the conductive layer 30, the inflected section 13, and the adhesive layer 21 form a stepped structure that expands outward in sequence. The step difference between adjacent layers transitions smoothly, which can improve the gap-filling ability of the dam glue 60, completely fill the gap between two adjacent steps in the first direction Y, and improve the effectiveness of sealing the protective glue 40.

[0083] After the dam glue 60 is prepared, the glue injection mold 50 is also used to fill the protective glue 40. Please refer to the above description of the glue injection using the glue injection mold 50, which will not be repeated here.

[0084] Furthermore, an embodiment of the present application also provides a method for preparing a display module. Figure 14 A method for preparing a display module according to an embodiment of the present application is shown. Figure 12 Shown, including:

[0085] S100: providing a display panel, including a display segment, a bending segment, and a reflex segment;

[0086] S200: Disposing a support structure on the backlight side of the display segment, and disposing the inflected segment opposite to the display segment; the support structure includes at least an adhesive layer and a metal layer;

[0087] S300: Disposing a conductive layer on a side of the inflected segment facing away from the display segment, the conductive layer electrically connecting the inflected segment to the metal layer; at least one of the conductive layer and the adhesive layer is a multi-layer structure; along a first direction, side edges of the conductive layer, side edges of the inflected segment, and side edges of the adhesive layer are vertically projected on the inflected segment to form a step-like structure that expands outward in sequence;

[0088] S400: Providing a glue injection mold, the glue injection mold having a side surface, the side surface abutting against a side edge of the conductive layer, a side edge of the inflected section, and a side edge of the adhesive layer; applying pressure to the glue injection mold to deform the side surface, wherein the deformed side surface is used to fill a gap between two adjacent steps in a first direction;

[0089] S500: injecting protective glue into the glue injection mold, so that the protective glue fills the first gap and the second gap of the display module.

[0090] refer to Figure 11 and Figure 12 The gap between the bending section 12 and the supporting structure 20 is the first gap b1, and the second gap b2 is the gap between the bending section 12 and the protective frame (not shown in the figure).

[0091] The display module obtained by the preparation method has a high glue injection yield and a good sealing and protective glue effect.

[0092] Before providing a plastic injection mold in step S400, the following steps are also included:

[0093] A dam glue is formed on the side edge of the conductive layer, the side edge of the inflected section and the side edge of the adhesive layer, and the dam glue fills the gap between two adjacent steps in the first direction.

[0094] Adding dam glue before glue injection can further improve the blocking effect of overflow of the sealing protective glue and improve the yield of the display module.

[0095] The present application also provides a display device including the display module described above. The display device includes the display module described above, and thus can achieve all the technical effects of the display module described above, which will not be described in detail here. Figure 15FIG. 1 is a schematic diagram of a display device provided by an embodiment of the present invention. Figure 15 As shown, the display device 1000 includes the display module described above. Specifically, the display device 1000 can be a mobile phone, a wireless device, a personal data assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a television monitor, a flat-panel display, a computer monitor, a car display, an electronic photo, an electronic billboard or sign, a projector, a building structure, a packaging and an aesthetic structure, etc.

[0096] It should be noted that, in addition to the display module structure, the display device also includes other necessary components and components. Taking a computer as an example, it also includes a casing, a circuit board, a power cord, etc. Personnel in this field can make corresponding supplements based on the specific usage requirements of the electronic equipment, which will not be repeated here.

[0097] In summary, the display module, preparation method thereof, and display device provided by the present invention have the following advantages:

[0098] By setting the side edges of the conductive cloth, the side edges of the folded section and the side edges of the adhesive layer as a step-like structure that expands outward in sequence along the first direction, it is convenient for the glue injection mold to completely fill the gap between two adjacent steps in the first direction. Then, when the protective glue is injected, the glue injection mold can block the protective glue from flowing along the second direction, avoiding the protective glue from overflowing into the display panel, thereby improving the preparation yield and display effect of the display module; by setting the conductive cloth or the adhesive layer as a multi-layer structure, the step transition between adjacent layers can be made smoother, thereby improving the ability of the glue injection mold to fill the gap between two adjacent steps and improving the sealing effect of the protective glue during glue injection.

[0099] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A display module, characterized in that: include: The display panel includes a display segment and a reflective segment that are arranged opposite to each other, and a bending segment that is bent and connects the display segment and the reflective segment; A supporting structure is provided between the display segment and the inflected segment; the supporting structure comprises at least an adhesive layer and a metal layer; a conductive layer disposed on a side of the inflected segment facing away from the display segment; the conductive layer is used to electrically connect the inflected segment and the metal layer; at least one of the conductive layer and the adhesive layer is a multi-layer structure; Along the first direction, the side edge of the conductive layer, the side edge of the inflected segment, and the side edge of the adhesive layer are step-shaped structures that expand outward in sequence.

2. The display module according to claim 1, wherein: The conductive layer is a multi-layer structure, and along the first direction, the side edges of each layer of the conductive layer are step-shaped structures that expand outward in sequence.

3. The display module according to claim 1, wherein: The bonding layer is a multi-layer structure, and along the first direction, the side edges of each layer of the bonding layer are step-shaped structures that expand outward in sequence.

4. The display module according to claim 1, wherein: The length of the first portion of the side edge of the adhesive layer exceeding the side edge of the inflected section is 0.2 mm to 1 mm.

5. The display module according to claim 4, wherein: The second portion of the side edge of the adhesive layer is retracted into the side edge of the inflected section.

6. The display module according to claim 1, wherein: The length of the side edge of the conductive layer retracted from the side edge of the inflected section is 0.2 mm to 2 mm.

7. The display module according to claim 1, wherein: The display module further includes a protective adhesive, which covers at least a portion of the sidewall surface of the display segment and a gap between the bending segment and the supporting structure.

8. The display module according to claim 1, wherein: The display module further includes a dam glue, and the dam glue is provided on the gap between two adjacent steps in the first direction.

9. A method for preparing a display module, characterized in that: The method comprises the steps of: A display panel is provided, comprising a display segment, a bending segment and a reflex segment; A support structure is provided on the backlight side of the display segment, and the inflected segment is arranged opposite to the display segment; the support structure includes at least an adhesive layer and a metal layer; A conductive layer is provided on a side of the inflected segment facing away from the display segment, the conductive layer electrically connecting the inflected segment to the metal layer; at least one of the conductive layer and the adhesive layer is a multi-layer structure; along a first direction, side edges of the conductive layer, the inflected segment, and the adhesive layer form a step-like structure that expands outward in a vertical projection on the inflected segment; Providing a glue injection mold, the glue injection mold having a side surface, the side surface abutting against a side edge of the conductive layer, a side edge of the inflected section, and a side edge of the adhesive layer, applying pressure to the glue injection mold to deform the side surface, the deformed side surface being used to fill a gap between two adjacent steps in a first direction; A protective glue is injected into the glue injection mold, and the protective glue fills the first gap and the second gap of the display module.

10. The method for preparing a display module according to claim 9, wherein: Before providing a plastic injection mold, the method further includes the following steps: A dam glue is formed on the side edge of the conductive layer, the side edge of the inflected section and the side edge of the adhesive layer, and the dam glue fills the gap between two adjacent steps in the first direction.

11. A display device, characterized in that: Comprising the display module according to any one of claims 1 to 8.

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