Display module and preparation method thereof, and display device

Abstract

The present invention relates to a display module and a preparation method thereof, and a display device. The display module includes a display panel, a polarizing layer, a cover layer, a shielding layer, a first adhesive layer, and a second adhesive layer; the polarizing layer is arranged on the display panel, the cover layer is arranged on the polarizing layer, and the first adhesive layer is arranged between the polarizing layer and the cover layer to bond the polarizing layer and the cover layer; the frame area on one side of the effective display area of ​​the display module has a bending structure; the second adhesive layer is coated on the surface of the bending structure and is located between the first adhesive layer and the display panel; the contact area between the second side of the first adhesive layer and the second adhesive layer does not exceed a second set value. The above-mentioned display module can ensure that the overlapping area of ​​the first adhesive layer and the second adhesive layer is small, and the interaction force between the two is small, thereby avoiding the risk of wiring breakage in the process of forming the bending structure, avoiding problems such as poor bright lines, etc.

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] How to make the border of the display screen narrower has always been a technical direction that the industry has been pursuing. Currently, various display products on the market have adopted a variety of narrow border solutions, achieving narrow borders to varying degrees.

[0003] An existing type of display module with a narrow frame has a driver IC and a flexible circuit board arranged on the back side of the display panel. One side edge of the display panel is bent to the back side of the display panel. A wiring is arranged on the bent area. Through the wiring, the display panel is connected to the driver IC and the flexible circuit board arranged on the back side of the display panel.

[0004] However, the problem with the above-mentioned display module is that the wiring arranged on the bent area is easy to break, which in turn causes the display module product to have poor bright lines, or causes the display module to deform and the size specifications to fail to meet the standards. Summary of the invention

[0005] The present invention provides a display module and a preparation method thereof, and a display device, so as to solve the technical problem in the prior art that the wiring in the bending area is easily broken, resulting in various disadvantages.

[0006] The display module provided by the present invention includes a display panel, a polarizing layer, a cover layer, a first adhesive layer and a second adhesive layer; the polarizing layer is arranged on the display panel, the cover layer is arranged on the polarizing layer, the first adhesive layer is arranged between the polarizing layer and the cover layer to bond the polarizing layer and the cover layer, the side of the first adhesive layer facing the cover layer is the first side, and the side facing the display panel is the second side; the frame area on the effective display area side of the display module has a bending structure, and the bending structure is used to arrange the wiring connected to the driving IC located on the back side of the display panel; the second adhesive layer is coated on the surface of the bending structure and is located between the first adhesive layer and the display panel; the contact area between the second side of the first adhesive layer and the second adhesive layer does not exceed a second set value.

[0007] The edge of the second side of the first adhesive layer adjacent to the bending structure is flush with the edge of the polarizing layer, or the projection of the edge of the second side of the first adhesive layer adjacent to the bending structure on the polarizing layer is located within the polarizing layer, so that the second set value is 0.

[0008] Wherein, the display module also includes a blocking layer, which is arranged in the border area of ​​the display module to block the edge structure of the display module, and the blocking layer is located between the cover layer and the first adhesive layer; the contact area between the first side of the first adhesive layer and the blocking layer is not less than a first set value; or, a first concave area is formed in the first side of the first adhesive layer and / or the area of ​​the cover layer that contacts the blocking layer.

[0009] Among them, on the side where the bending structure is located, the first adhesive layer extends from the effective display area to the frame area; the area on the first side of the first adhesive layer that contacts the shielding layer is the first area; the projection of the edge of the second side of the first adhesive layer on the side adjacent to the bending structure on the first side of the first adhesive layer is located within the first area, so as to form a second concave area concave toward the first side at the edge of the first adhesive layer on the side adjacent to the bending structure.

[0010] Wherein, the length of the first area in the direction from the effective display area to the frame area is not less than 0.4 mm.

[0011] Wherein, the thickness of the second concave area from the edge of the polarizing layer to the frame area is not less than 50 micrometers.

[0012] The second concave area is formed by cutting or laser sintering; or the first adhesive layer includes a first sub-layer and a second sub-layer bonded to each other, a projection of the second sub-layer on the first sub-layer is located within the first sub-layer, and a partial area of ​​the projection of the first sub-layer on the second sub-layer is located outside the second sub-layer.

[0013] Wherein, the thickness of the first sub-layer is not less than the thickness of the second sub-layer.

[0014] Wherein, the shape of the second concave area is wedge-shaped or rectangular.

[0015] The second concave area is in a wedge shape, and the angle of the oblique side of the wedge facing the second adhesive layer is in a range of 30 to 60 degrees.

[0016] Wherein, the first concave area on the cover plate layer is formed by mechanical processing; the first concave area on the first adhesive layer is formed by cutting or laser sintering.

[0017] Wherein, the first adhesive layer is optical adhesive, and the second adhesive layer is micro-coating adhesive.

[0018] The present invention provides a method for preparing a display module, which is used to prepare the above-mentioned display module, wherein the contact area between the first side of the first adhesive layer and the shielding layer in the display module is not less than a first set value, and the method for preparing the display module comprises:

[0019] A second concave area is formed on an edge of the first adhesive layer on one side adjacent to the bending structure and is concave toward the first side;

[0020] The second side of the first adhesive layer is bonded to the display panel having the polarizing layer, the bending structure and the second adhesive layer, and the first side is bonded to the cover layer having the shielding layer.

[0021] The step of forming the second concave area includes:

[0022] The first sublayer and the second sublayer are laminated together; after lamination, a partial area of ​​the first sublayer overlaps with the second sublayer, and the first sublayer has a non-overlapping area that does not overlap with the second sublayer, and the non-overlapping area is a second concave area to be formed.

[0023] wherein the projection of the second sublayer on the first sublayer is larger than the overlapping area of ​​the projection and the first sublayer;

[0024] After the first sub-layer and the second sub-layer are attached to each other, the second sub-layer is cut to remove other areas of the second sub-layer outside the overlapping area between the projection of the second sub-layer and the first sub-layer.

[0025] The step of forming the second concave area includes:

[0026] Cutting the adhesive layer at the edge of the first adhesive layer on one side adjacent to the bending structure to separate the adhesive layer at the second side edge of the first adhesive layer to form the second concave area; or

[0027] The edge of the first adhesive layer on one side adjacent to the bending structure is irradiated with a laser at an edge region of the second side, so that the adhesive layer in the edge region is sintered and removed to form the second concave region.

[0028] Another method for preparing a display module provided by the present invention is used to prepare the above-mentioned display module, wherein a first concave area is formed in an area where the first side of the first adhesive layer in the display module contacts the shielding layer, and the method for preparing the display module comprises:

[0029] Coating a second adhesive layer on the structure to be bent at one side edge of the display panel with the polarizing layer connected to the driving IC;

[0030] Thinning a designated area on the first side of the first adhesive layer to form a first concave area;

[0031] forming a first adhesive layer on the polarizing layer, wherein an overlapping area between the first adhesive layer and the second adhesive layer does not exceed a second set value;

[0032] Filling a shielding layer into a first concave area formed on a first side of the first adhesive layer;

[0033] The cover layer is attached to the first adhesive layer.

[0034] Another method for preparing a display module provided by the present invention is used to prepare the above-mentioned display module, wherein a first concave area is formed in a region of the cover layer in contact with the shielding layer in the display module, and the method for preparing the display module comprises:

[0035] Thinning the area on the cover layer corresponding to the first adhesive layer to form a first concave area;

[0036] forming a shielding layer on the cover plate layer, wherein the area where the shielding layer is formed includes the first concave area;

[0037] The cover layer formed with the shielding layer is attached to the display panel formed with the first adhesive layer, the second adhesive layer and the polarizing layer, and the overlapping area of ​​the first adhesive layer and the second adhesive layer does not exceed the second set value.

[0038] The display device provided by the present invention includes the above-mentioned display module.

[0039] The display module and its preparation method, and the display device provided by the embodiments of the present invention have the following advantages compared with the prior art:

[0040] In the display module provided by the embodiment of the present invention, the contact area between the second side of the first adhesive layer and the second adhesive layer does not exceed the second set value, which can ensure that the overlapping and contact areas between the first adhesive layer and the second adhesive layer are small, so that no large interaction force is generated between the first adhesive layer and the second adhesive layer, thereby improving and avoiding the phenomenon that the wiring on the bending structure is broken due to the interaction force between the first adhesive layer and the second adhesive layer during the bending process of the bending structure, thereby reducing the probability of poor bright line on the display module, deformation of the display module, and substandard size specifications.

[0041] The method for preparing a display module provided in an embodiment of the present invention is used to prepare the above-mentioned display module and has the same beneficial effects as the above-mentioned display module, which will not be described in detail herein.

[0042] The display device provided by the embodiment of the present invention includes the above-mentioned module and has the same beneficial effects as the above-mentioned display module, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0045] Figure 1 It is a structural schematic diagram of an existing display module;

[0046] Figure 2 is a schematic diagram of the structure of the display module in Embodiment 1 of the present invention;

[0047] Figure 3 for Figure 2 The structure diagram of the first adhesive layer in the display module is shown;

[0048] Figure 4 is a schematic structural diagram of another display module in Embodiment 1 of the present invention;

[0049] Figure 5 is a schematic diagram of the structure of a display module in Embodiment 2 of the present invention;

[0050] Figure 6 is a schematic diagram of the structure of the display module in Embodiment 3 of the present invention;

[0051] Figure 7 is a flow chart of a method for preparing a display module in Example 1 of the present invention;

[0052] Figure 8 is a flow chart of a method for preparing a display module in Embodiment 2 of the present invention;

[0053] Fig. 9 Flow chart of the method for preparing a display module in Embodiment 3 of the present invention.

[0054] In the figure:

[0055] 1-display panel; 2-polarizing layer; 3-optical adhesive layer; 4-cover layer; 5-micro coating adhesive layer; 6-shielding layer; 7-support layer; 8-heat dissipation structure layer; 9-driver IC;

[0056] 10-display panel; 11-polarizing layer; 12-cover layer; 13-shielding layer; 14-first adhesive layer; 15-second adhesive layer; 16-support layer; 17-heat dissipation structure layer; 18-driver IC;

[0057] 141 - first sublayer; 142 - second sublayer;

[0058] A1-first area; B1-first concave area; B2-second concave area. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] Embodiments of the display module and the display device provided by the present invention are described below with reference to the accompanying drawings.

[0061] (1) Embodiment 1 of the display module

[0062] As described in the background technology section, the wiring arranged on the bent area of ​​a display module with a narrow frame is prone to breakage, resulting in corresponding defects. Figure 1 The analysis is as follows.

[0063] like Figure 1 As shown, in the related art, the display module includes a display panel 1, on one side of the display panel 1 ( Figure 1 A polarizing layer 2, an optical adhesive layer 3 and a cover layer 4 are respectively arranged on the upper side of the display panel 1. Figure 1 A support layer 7 and a heat dissipation structure layer 8 are provided on the lower side of the Figure 1 In the frame area of ​​the display module shown in FIG. 1 , the driver IC 9 and the flexible circuit board are arranged at the side frame, specifically at the back side of the display panel 1 ( Figure 1 The display panel 1 is bent to the back side of the display panel 1 in the side frame area, and is connected to the driver IC 9 and the flexible circuit board arranged on the back side of the display panel 1. The surface of the bent area of ​​the display panel 1 is covered with a micro-coating layer 5, and the micro-coating layer 5 is used to protect the bent area of ​​the display panel 1.

[0064] In the related art, the optical adhesive layer 3 is generally placed toward the outside of the display module ( Figure 1In this case, the optical adhesive layer 3 extends to the micro-coating adhesive layer 5, and there are overlapping and contact areas between the optical adhesive layer 3 and the micro-coating adhesive layer 5 below the optical adhesive layer 3. The contact and overlapping areas between the optical adhesive layer 3 and the micro-coating adhesive layer 5 will bring the following problems: both the optical adhesive layer 3 and the micro-coating adhesive layer 5 are adhesive, and a large interaction force will be generated between the two. When performing the pad bending process (bending the edge of the display panel to the back side), the large force between the optical adhesive layer 3 and the micro-coating adhesive layer 5 is likely to cause bending deformation, resulting in the breakage of the wiring formed in the bending area of ​​the display panel 1, which will lead to poor bright line on the display module product, or cause the display module to deform and the size specifications to fail to meet the standards.

[0065] The specific solution of this embodiment to solve the above technical problem is described in detail below with reference to the accompanying drawings.

[0066] The display module in this embodiment includes a display panel 10, a polarizing layer 11, a cover layer 12, a first adhesive layer 14 and a second adhesive layer 15. Figure 2 The polarizing layer 11 is disposed on the display panel 10, the cover layer 12 is disposed on the polarizing layer 11, and the first adhesive layer 14 is disposed between the polarizing layer 11 and the cover layer 12 to bond the polarizing layer 11 and the cover layer 12. The first adhesive layer 14 can be specifically an optical adhesive (OCA adhesive, Optically Clear Adhesive). In this embodiment, the side of the first adhesive layer 14 facing the cover layer 12 ( Figure 2 The upper side shown in FIG) is the first side, and the side facing the display panel 10 ( Figure 2 The lower side shown in FIG. 1 is the second side.

[0067] The polarizing layer 11, the cover layer 12 and the first adhesive layer 14 are arranged on one side of the display panel 10 ( Figure 2 ), and on the other side of the display panel 10 ( Figure 2 A support layer 16 and a heat dissipation structure layer 17 are provided on the lower side of the display panel 10, wherein the support layer 16 is used to support the display panel 10, and the heat dissipation structure layer 17 generally includes an adhesive layer, a buffer layer and a heat dissipation layer, which can buffer the stress acting on the display panel 10 on the one hand, and on the other hand, can also help the heat generated by the display panel 10 when working to be conducted and dissipated outwards, thereby helping to maintain the temperature of the display panel 10 not being too high.

[0068] See also Figure 2 The display panel 10 needs to be connected to the driver IC 18, the flexible circuit board, etc. to receive various signals, so as to realize the display of corresponding pictures according to the control of various signals. Figure 2As shown, in order to reduce the width of the border area and achieve the requirement of narrow border, the drive IC 18, the flexible circuit board and other structures are arranged on the back side of the display panel 10, that is, Figure 2 the lower side shown in ; and, Figure 2 In the frame area of ​​the display module shown, a bending structure is provided, and the bending structure is arranged with wiring connecting the effective display area of ​​the display panel and the driver IC located on the back side of the display panel, so that the driver IC and other structures located on the back side of the display panel can input signals into the effective display area of ​​the display panel through the wiring to control the picture information displayed in the effective display area of ​​the display panel. The surface of the bending structure is covered with a second adhesive layer 15, and the second adhesive layer 15 can protect the bending structure and avoid the bending structure from being damaged as much as possible. Specifically, the second adhesive layer 15 can be a micro coating adhesive (MCL adhesive, Micro Coating Layer). In addition to covering the bending portion of the bending structure, the second adhesive layer 15 also extends a distance beyond the bending starting point of the bending structure in the direction of the effective display area of ​​the display panel 10, which can improve the protection effect of the second adhesive layer 15 on the bending structure.

[0069] In this embodiment, the contact area between the second side of the first adhesive layer 14 and the second adhesive layer 15 does not exceed the second set value. As described in the analysis of the prior art above, the first adhesive layer 14 and the second adhesive layer 15 have a large overlap and contact area, which will form a large force between the first adhesive layer 14 and the second adhesive layer 15. This large force can easily cause the wiring on the bending structure to break when the bending structure is bent, thereby causing the display module to have poor bright lines, or the size specifications to fail to meet the standards due to deformation. In this embodiment, the contact area between the second side of the first adhesive layer 14 (i.e., the side facing the second adhesive layer 15) and the second adhesive layer 15 does not exceed the second set value, and the second set value can be set to a smaller value, so that the contact area between the second side of the first adhesive layer 14 and the second adhesive layer 15 can be ensured to be smaller, so that the interaction force generated between the first adhesive layer 14 and the second adhesive layer 15 is smaller, so that the probability of wiring breakage on the bending structure can be reduced when the bending structure is bent, thereby reducing the probability of bright line defects on the display module, as well as reducing the probability of deformation and improving the amplitude of deformation, thereby improving the compliance rate of the size specifications of the display module products.

[0070] Furthermore, the edge of the second side of the first adhesive layer 14 adjacent to the bending structure is flush with the polarizing layer 11, or the projection of the edge of the second side of the first adhesive layer 14 adjacent to the bending structure on the polarizing layer 11 is located within the polarizing layer 11, that is, the edge of the second side of the first adhesive layer 14 adjacent to the bending structure does not extend beyond the polarizing layer 11 toward the frame area. In this case, the second set value is zero. In other words, there is no overlapping or contact area between the second side of the first adhesive layer 14 and the second adhesive layer 15, and no interaction force will be formed between the first adhesive layer 14 and the second adhesive layer 15, which will not have an adverse effect on the bending process of the bending structure, and will not cause the wiring to break due to the interaction force between the first adhesive layer 14 and the second adhesive layer 15, thereby avoiding poor bright line and deformation of the display module, and improving the compliance rate of the size specifications of the display module products.

[0071] In specific implementation, the preparation process of the first adhesive layer 14 and the second adhesive layer 15 can be implemented according to the standard that there is no overlap or contact area between the second side of the first adhesive layer 14 and the second adhesive layer 15. During the preparation process, due to process errors and other reasons, there may still be overlap or contact areas between the first adhesive layer 14 and the second adhesive layer 15, but in this case, the overlap and contact area between the first adhesive layer 14 and the second adhesive layer 15 will be smaller, and the interaction force generated by the contact area between the two is smaller, which will not have a significant impact on the bending process of the bending structure, and thus will not or will not significantly cause the display module to have poor bright line and the display module size specifications not to meet the standards.

[0072] Meanwhile, in the related technologies, please continue to refer to Figure 1 In the border area on one side of the display panel, a shielding layer 6 is also provided below the cover layer 4 (specifically between the cover layer 4 and the optical adhesive layer 3). The shielding layer 6 is used to shield various structures in the border area of ​​the display module to avoid being seen, thereby affecting the display effect.

[0073] In the above-mentioned display module, there needs to be sufficient overlapping and contact areas between the optical adhesive layer 3 and the shielding layer 6. The reason is that when the cover layer 4 formed with the shielding layer is covered on the optical adhesive layer 3, bubbles are easily generated between the shielding layer 6 and the optical adhesive layer 3 due to the pressure of covering. The bubbles can only be eliminated if there is a sufficient overlapping contact area between the optical adhesive layer 3 and the shielding layer 6. If the overlapping contact area between the optical adhesive layer 3 and the shielding layer 6 is too small, the bubbles cannot be eliminated.

[0074] For this question, please continue to see Figure 2, the display module provided in this embodiment also includes a shielding layer 13. The display module has an effective display area (AA area, Active Area) and a frame area. The effective display area is used to display the corresponding picture information, while the frame area is not used for display. It is used to arrange various components and structures such as wiring and circuits for realizing display. These components and structures do not have visual consistency. When seen by the user, they will affect the user's visual experience and affect the user's reception of the picture information displayed in the effective display area. In this embodiment, the shielding layer 13 is arranged in the frame area of ​​the display module and is arranged between the cover layer 12 and the first adhesive layer 14. The shielding layer 13 can shield the edge structure of the display module, so that the user cannot see the various components and structures in the frame area, ensuring the visual consistency of the user. Specifically, the shielding layer 13 can be ink, more specifically black ink, which is coated on the cover layer 12 and formed between the cover layer 12 and the first adhesive layer 14 by the cover layer 12 and the display panel 10.

[0075] For the shielding layer 13 and the second adhesive layer 15, the distance that the second adhesive layer 15 extends toward the effective display area does not reach the side of the shielding layer 13 adjacent to the effective display area, but only extends to the edge of the polarizing layer 11. In other words, the distance between the second adhesive layer 15 and the effective display area is greater than the distance between the shielding layer 13 and the effective display area.

[0076] In this embodiment, the contact area between the first side of the first adhesive layer 14 and the shielding layer 13 is not less than the first set value. As described in the analysis of the prior art above, the contact area between the first adhesive layer 14 and the shielding layer 13 needs to be large enough. Only when the contact area between the first adhesive layer 14 and the shielding layer 13 is large enough, when the cover layer 12 and the display panel 10 are covered, the bubbles generated between the first adhesive layer 14 and the shielding layer 13 can be eliminated. In this embodiment, as far as the value of the first set value is concerned, the specific value of the first set value is set above a certain critical point (the critical point can be determined by experiments or by other methods). When the contact area between the first adhesive layer 14 and the shielding layer 13 reaches or exceeds the critical point, the bubbles generated between the first adhesive layer 14 and the shielding layer 13 can be completely eliminated or the bubbles between the two can be eliminated to below a certain number (specifically determined according to the inspection qualification standard for the bubbles, which standard can specifically be that the bubbles are completely eliminated or the number of bubbles is less than a set value); when the contact area between the first adhesive layer 14 and the shielding layer 13 is less than the critical point, the bubbles generated between the first adhesive layer 14 and the shielding layer 13 cannot be completely eliminated or the bubbles between the two cannot be eliminated to below a certain number.

[0077] Specifically, in Figure 2On the side where the bending structure is shown, the first adhesive layer 14 extends from the effective display area to the frame area. The first side of the first adhesive layer 14 has a first area A1, which is the area where the first side contacts the shielding layer 13. In this embodiment, the length of the first area A1 in the direction from the effective display area to the frame area is set to be not less than 0.4 mm. In this way, the first area A1 can be ensured to be large enough, so that bubbles generated when the first adhesive layer 14 and the shielding layer 13 are covered can be effectively eliminated.

[0078] The projection of the edge of the second side of the first adhesive layer 14 adjacent to the bending structure on the first side of the first adhesive layer 14 is located within the first area A1. In other words, at the side of the first adhesive layer 14 adjacent to the bending structure, the distance the second side extends to the border area is small, and the distance the first side extends to the border area is long. At this time, the side wall of the first adhesive layer 14 between the first side and the second side is not flat (perpendicular to the first side and the second side), but is inclined as a whole (specifically, it may have a slope surface or a step surface, thereby forming a length difference between the first side and the second side). Compared with the case where the side wall of the first adhesive layer 14 is flat, the inclined side wall of the first adhesive layer 14 can be regarded as a concave area concave toward the first side, and the concave area is the second concave area B2.

[0079] In the case where the second concave area B2 exists on the side of the first adhesive layer 14 adjacent to the bending structure, at the second concave area B2, there is a gap between the first adhesive layer 14 and the second adhesive layer 15 without contact, thereby reducing the overlapping and contact areas of the first adhesive layer 14 and the second adhesive layer 15, and can reduce the interaction force between the first adhesive layer 14 and the second adhesive layer 15, which helps to improve the problem of broken wiring on the bending structure due to the large interaction force between the first adhesive layer 14 and the second adhesive layer 15, thereby causing poor bright line on the display module, or causing the display module to be deformed and the size specifications not meeting the standards.

[0080] The thickness of the second concave area B2 in the direction from the edge of the polarizing layer 11 to the frame area is not less than 50 microns. This arrangement can ensure that the gap formed between the first adhesive layer 14 and the second adhesive layer 15 is large enough, so that even when the thickness of the formed second adhesive layer 15 is too large, the gap can be maintained between the first adhesive layer 14 and the second adhesive layer 15, so that the first adhesive layer 14 and the second adhesive layer 15 do not contact. For example, under normal circumstances, the reference thickness (typical value) of the second adhesive layer 15 is 44 microns, and the gap between the first adhesive layer 14 and the second adhesive layer 15 is 50 microns. If the thickness of the second adhesive layer 15 is the maximum value (Max value) of 64 microns due to various factors in the preparation process, the gap between the first adhesive layer 14 and the second adhesive layer 15 is still 30 microns, and the first adhesive layer 14 and the second adhesive layer 15 still do not contact.

[0081] In this embodiment, the second concave area B2 is formed by cutting or laser sintering. After the second concave area B2 is formed by cutting or laser sintering, the two sides of the first adhesive layer 14 are respectively attached to the polarizing layer 11 and the cover layer 12.

[0082] In addition to forming the second concave area B2 by cutting or laser sintering, in this embodiment, the first adhesive layer 14 having the second concave area B2 can also be formed by other methods. Figure 3 As shown, the first adhesive layer 14 includes a first sublayer 141 and a second sublayer 142 which are bonded to each other, the projection of the second sublayer 142 on the first sublayer 141 is located inside the first sublayer 141, and a partial area of ​​the projection of the first sublayer 141 on the second sublayer 142 is located outside the second sublayer 142. According to the above configuration, when the first sublayer 141 and the second sublayer 142 are bonded, a partial area on the second sublayer 142 will be offset compared to the first sublayer 141, thereby forming a concave area in the partial area, namely, the second concave area B2. Preferably, the thickness of the first sublayer 141 is not less than the thickness of the second sublayer 142, and the thickness of the second sublayer 142 can have a minimum value, which can be set to 50 microns, so that the thickness of the second concave area B2 is not less than 50 microns. The thickness of the first sublayer 141 can be specifically 1 times, 2 times, or other integer and non-integer multiples of the thickness of the second sublayer 142.

[0083] In this embodiment, the shape of the second concave area B2 on the first adhesive layer 14 can be a wedge or a rectangle. Figure 2 and Figure 4 As shown, or other shapes, as long as there is a gap between it and the second adhesive layer 15, so that the first adhesive layer 14 and the second adhesive layer 15 are not in contact with the area where the second concave area B2 is located. When the shape of the second concave area B2 is a wedge, the angle of the oblique side of the wedge facing the second adhesive layer is in the range of 30 to 60 degrees.

[0084] In this embodiment, the first adhesive layer 14 may be optical adhesive; the second adhesive layer 15 may be micro-coating adhesive; and the shielding layer 13 may be ink, such as black ink.

[0085] (2) Embodiment 2 of the display module

[0086] like Figure 5 As shown, in this embodiment, the display module also includes a display panel 10, a polarizing layer 11, a cover layer 12, a shielding layer 13, a first adhesive layer 14 and a second adhesive layer 15. The following focuses on the differences between this embodiment and the above-mentioned embodiment 1. Other parts not mentioned in this embodiment are the same as those in the above-mentioned embodiment 1, and are not described here for brevity.

[0087] like Figure 5As shown, in this embodiment, a first concave area B1 is formed in the area where the first side of the first adhesive layer 14 contacts the shielding layer 13. The contact area between the second side of the first adhesive layer 14 and the second adhesive layer 15 does not exceed the second set value.

[0088] In this embodiment, a first concave area B1 is formed on the first side of the first adhesive layer 14, and the first concave area B1 is located in the area of ​​the first side that contacts the shielding layer 13. Since the first concave area B1 is formed on the first side of the first adhesive layer 14, there is enough space in the direction perpendicular to the display panel 10 to accommodate the first adhesive layer 14 and the shielding layer 13, and there is no need to forcibly press the two together in a limited space by extrusion. Therefore, when the first adhesive layer 14 and the cover layer 12 with the shielding layer 13 are attached, the bubble phenomenon caused by extrusion and the like can be improved, and even no bubbles are generated during the attachment process.

[0089] In this case, there is no need for a large overlap and contact area between the first adhesive layer 14 and the shielding layer 13, and the first adhesive layer 14 does not need to extend a long distance from the effective display area to the frame area, so that the overlap and contact area between the first adhesive layer 14 and the second adhesive layer 15 can be reduced, that is, the value of the second set value can be set to be smaller. Based on this, the interaction force between the first adhesive layer 14 and the second adhesive layer 15 can be reduced, thereby improving and avoiding the phenomenon that the wiring on the bending structure is broken due to the interaction force between the first adhesive layer 14 and the second adhesive layer 15 during the bending process of the bending structure, thereby reducing the probability of poor bright line on the display module, deformation of the display module, and substandard size specifications.

[0090] In this embodiment, preferably, the edge of the first adhesive layer 14 is limited to the edge of the polarizing layer 11, that is, the two are flush. In other words, since the edge of the second adhesive layer 15 is generally formed at the edge of the polarizing layer 11 and is connected to the edge of the polarizing layer 11, the above setting actually makes it possible for there to be no overlapping and contacting area between the first adhesive layer 14 and the second adhesive layer 15, that is, the value of the second set value is zero. In this case, no interaction force will be generated between the first adhesive layer 14 and the second adhesive layer 15, and the wiring on the bending structure will not be broken during the bending process of the bending structure, thereby avoiding the occurrence of poor bright line, deformation of the display module, and substandard size specifications.

[0091] In specific implementation, the preparation process of the first adhesive layer 14 and the second adhesive layer 15 is implemented according to the standard that the second set value is zero, that is, there is no overlap or contact area between the first adhesive layer 14 and the second adhesive layer 15. During the preparation process, due to process errors and other reasons, there may still be overlap or contact areas between the first adhesive layer 14 and the second adhesive layer 15, but in this case, the overlap and contact area between the first adhesive layer 14 and the second adhesive layer 15 will be smaller, and the interaction force generated by the contact area between the two is smaller, which will not have a significant impact on the bending process of the bending structure, and thus will not or will not significantly cause the display module to have poor bright line and the display module size specifications not meeting the standards.

[0092] In this embodiment, the shielding layer 13 is ink, and the ink is used to shield various structures at the edge of the display module. The formation of a complete shielding layer 13 is carried out in two steps. The first step is to fill the first concave area B1 on the first adhesive layer 14 with ink, and the second step is to cover the first adhesive layer 14 filled with ink in the first concave area B1 with the cover layer 12 formed with ink (i.e., the shielding layer 13) on one side. After covering, the ink filled in the first concave area B1 and the ink on the cover layer 12 are connected to form an integrated structure, thereby forming a complete shielding layer 13.

[0093] In this embodiment, although the first concave area B1 on the first adhesive layer 14 is located at the first side, the formation method of the first concave area B1 is the same as the formation method of the second concave area B2 located at the second side in the first embodiment, which is not repeated here.

[0094] (3) Embodiment 3 of the display module

[0095] like Figure 6 As shown, in this embodiment, the display module also includes a display panel 10, a polarizing layer 11, a cover layer 12, a shielding layer 13, a first adhesive layer 14 and a second adhesive layer 15. The following focuses on the differences between this embodiment and the above-mentioned embodiments 1 and 2. Other parts not mentioned in this embodiment are the same as those in the above-mentioned embodiments 1 and 2, and are not described here for brevity.

[0096] like Figure 6As shown, in this embodiment, a first concave area B1 is formed in the area of ​​the cover layer 12 that contacts the shielding layer 13. The first concave area B1 plays the same role as the first concave area B1 on the first side of the first adhesive layer 14 in the above-mentioned embodiment 2, that is, it is used to accommodate the shielding layer 13, improve or avoid the bubble phenomenon generated when the shielding layer 13 and the first adhesive layer 14 are covered, so that there is no need for a large overlap and contact area between the first adhesive layer 14 and the shielding layer 13, and the first adhesive layer 14 does not need to extend a long distance from the effective display area to the frame area, so that the overlap and contact area between the first adhesive layer 14 and the second adhesive layer 15 can be reduced, that is, the value of the second set value can be set to a smaller value, which ultimately avoids causing the wiring on the bending structure to break, thereby reducing the probability of poor bright line on the display module, or deformation of the display module, and substandard size specifications.

[0097] In this embodiment, the concave area on the cover layer 12 can be formed by mechanical processing, such as using lathe milling to form the first concave area B1 on the cover layer 12. The shape of the first concave area B1 formed on the cover layer 12 can also be wedge-shaped, rectangular or other various shapes.

[0098] As a variation of the above-mentioned embodiment 2 and the present embodiment 3, a first concave area B1 is formed on the first side of the first adhesive layer 14 and the area of ​​the cover layer 12 that contacts the shielding layer 13. The shielding layer 13 is formed in the first concave area B1 on the first adhesive layer 14 and the cover layer 12, and is connected to the shielding layer 13 formed on other areas of the cover layer 12, thereby forming a complete shielding layer 13.

[0099] In summary, the display module provided by the above embodiment of the present invention has a contact area between the first side of the first adhesive layer 14 and the shielding layer 13 that is not less than the first set value, which can ensure that the bubbles generated when the first adhesive layer 14 and the shielding layer 13 are covered can be effectively eliminated. The first side of the first adhesive layer 14 and / or the area of ​​the cover layer 12 that contacts the shielding layer 13 is formed with a first concave area B1, which can improve or even avoid the bubble phenomenon generated when the first adhesive layer 14 and the shielding layer 13 are covered. The contact area between the second side of the first adhesive layer 14 and the second adhesive layer 15 does not exceed the second set value, which can ensure that the overlap and contact area between the first adhesive layer 14 and the second adhesive layer 15 are small, so that the first adhesive layer 14 and the second adhesive layer 15 do not generate a large interaction force, thereby improving and avoiding the phenomenon that the wiring on the bending structure is broken due to the interaction force between the first adhesive layer 14 and the second adhesive layer 15 during the bending process of the bending structure, thereby reducing the probability of poor bright line on the display module, or deformation of the display module, and substandard size specifications.

[0100] (4) Example 1 of the method for preparing a display module

[0101] In this embodiment, the method for preparing a display module is used to prepare the display module described in the embodiment 1 of the display module. The method for preparing the display module comprises the following steps S1 and S2: Figure 7 shown.

[0102] Step S1, providing a display panel 10.

[0103] The display panel 10 used in step S1 may specifically be an OLED display panel. If feasible, other types of display panels may also be used.

[0104] Step S2 , forming a polarizing layer 11 on the display panel 10 .

[0105] In step S2 , the formed polarizing layer 11 covers the effective display area of ​​the display panel 10 and covers a portion of the frame area of ​​the display panel 10 .

[0106] Step S3, forming a second adhesive layer 15 on the display panel.

[0107] In step S3, the formed second adhesive layer 15 covers the frame area of ​​the display panel 10 and does not overlap with the polarizing layer 11. Specifically, the pattern of the second adhesive layer 15 is bounded by the edge of the polarizing layer 11 and is connected to the polarizing layer 11.

[0108] Step S4 , forming a second concave area B2 concave toward the first side at an edge of the first adhesive layer 14 adjacent to the bending structure.

[0109] In step S4 , the first side of the first adhesive layer 14 is the side facing the cover layer 12 , and the second side is the side facing the display panel 10 .

[0110] In step S4, a variety of methods may be used to form the second concave area B2 on one side of the first adhesive layer 14 adjacent to the bending structure, such as cutting, laser sintering, or pasting two adhesive layers.

[0111] The second concave area B2 is formed by cutting as follows:

[0112] The adhesive layer is cut at the edge of the first adhesive layer 14 adjacent to the bending structure, so that the adhesive layer of the second side edge portion of the first adhesive layer 14 is separated to form the second concave area B2.

[0113] The concave area is formed by laser sintering in the following way:

[0114] The edge of the first adhesive layer 14 on one side adjacent to the bending structure is irradiated with laser at the edge area of ​​the second side, so that the adhesive layer in the edge area is sintered and removed to form the second concave area B2.

[0115] The second concave area B2 is formed by pasting two adhesive layers together, specifically:

[0116] The first sub-layer 141 and the second sub-layer 142 are bonded together; after bonding, a partial area of ​​the first sub-layer 141 overlaps with the second sub-layer 142, and the first sub-layer 141 has an overlapping area overlapping with the second sub-layer 142. Outside the overlapping area, the first sub-layer 141 also has a non-overlapping area that does not overlap with the second sub-layer 142, and the non-overlapping area is the second concave area B2 to be formed.

[0117] When the first sub-layer 141 and the second sub-layer 142 are laminated to form the first adhesive layer 14 with the concave area, the shape of the second sub-layer 142 may be inconsistent with the required shape of the first adhesive layer 14 to be finally formed, mainly because the shape of the second sub-layer 142 may be larger than the required shape, for example, the shape of the second sub-layer 142 is consistent with the shape of the first sub-layer 141, that is, the projection of the second sub-layer 142 on the first sub-layer 141 is larger than the overlapping area between the projection and the first sub-layer 141. In this case, after laminating the first sub-layer 141 and the second sub-layer 142, the second sub-layer 142 is cut to remove the other areas of the second sub-layer 142 outside the overlapping area between the projection of the second sub-layer 142 and the first sub-layer 141.

[0118] Step S5 , laminating the second side of the first adhesive layer 14 to the display panel 10 formed with the polarizing layer 11 and the second adhesive layer 15 , and laminating the first side to the cover layer 12 having the shielding layer 13 .

[0119] In step S5, a complete display module is formed by laminating. During the laminating process, bubbles may be generated between the first side of the first adhesive layer 14 and the shielding layer 13 due to factors such as squeezing, but since the overlap and contact area between the first side of the first adhesive layer 14 and the shielding layer 13 is not less than the first set value, a larger contact and overlap area is ensured between the two, and bubbles generated during the laminating process can be effectively eliminated to avoid defects caused by the bubbles.

[0120] Furthermore, since a second concave area is formed on the second side of the first adhesive layer 14, the second concave area B2 can ensure that the overlapping and contact areas between the second side of the first adhesive layer 14 and the second adhesive layer 15 do not exceed the second set value, thereby ensuring that the contact and overlapping areas therebetween are small, thereby reducing the interaction force therebetween. In the subsequent pad bending process, when the bending structure is bent, the wiring break formed on the bending structure can be improved or avoided, thereby reducing the probability of poor bright line on the display module, as well as the probability of deformation of the display module and substandard dimensional specifications.

[0121] (5) Example 2 of the method for preparing a display module

[0122] In this embodiment, the method for preparing the display module is used to prepare the display module described in the embodiment 2 of the display module and its variant embodiment (described after the embodiment 3 of the display module). The method for preparing the display module includes the following steps S1 to S5: Figure 8 shown.

[0123] Step S1, coating a second adhesive layer on the structure to be bent at one edge of a display panel having a polarizing layer and connected to a driver IC.

[0124] In step S1 , the second adhesive layer 15 may specifically be a micro-coating adhesive.

[0125] Step S2, thinning a designated area on the first side of the first adhesive layer to form a first concave area B1.

[0126] In step S2 , the first adhesive layer 14 may specifically be optical adhesive.

[0127] The thinning of the designated area on the first side of the first adhesive layer 14 can be performed by cutting, laser sintering or laminating two adhesive layers. The specific method is consistent with that described in the embodiment 1 of the manufacturing method of the display module, and will not be repeated here.

[0128] Step S3, forming a first adhesive layer on the polarizing layer, wherein an overlapping area between the first adhesive layer and the second adhesive layer does not exceed a second set value.

[0129] In step S3, the overlapping area of ​​the first adhesive layer 14 and the second adhesive layer 15 is controlled not to exceed the second set value, so as to ensure that there is a smaller overlapping area between the first adhesive layer 14 and the second adhesive layer 15, reduce the interaction force between the two, and avoid problems such as wiring breakage on the bending structure in the subsequent pad bending process.

[0130] Specifically, the second set value is preferably zero, so that there is no overlap or contact area between the first adhesive layer 14 and the second adhesive layer 15, and no interaction force is generated, thereby avoiding the problem of wiring breakage on the bending structure during the pad bending process to the greatest extent.

[0131] Step S4, filling a shielding layer into the first concave area B1 formed on the first side of the first adhesive layer.

[0132] In step S4 , the shielding layer 13 may specifically be ink, and the first concave area B1 formed on the first side of the first adhesive layer 14 may be filled with ink by spraying or other methods to form a local structure of the shielding layer 13 .

[0133] Step S5, laminating the cover layer on the first adhesive layer.

[0134] In step S5, ink as a shielding layer 13 is formed on one side of the cover layer 12, and the area with ink is the other area of ​​the cover layer 12 except the area corresponding to the first concave area B1 on the first adhesive layer 14. When the cover layer 12 and the first adhesive layer 14 are attached, there is no ink on the cover layer 12 at the first concave area B1 of the first adhesive layer 14, and no bubbles are generated by squeezing with the structure on the first adhesive layer 14; while in other areas outside the concave area of ​​the first adhesive layer 14, the ink on the cover layer 12 is connected with the ink in the concave area of ​​the first adhesive layer 14, thereby forming a complete shielding layer 13.

[0135] (6) Embodiment 3 of the method for preparing a display module

[0136] In this embodiment, the method for preparing a display module is used to prepare the display module described in the embodiment 3 of the display module and its variant embodiments. The method for preparing a display module comprises the following steps S1 to S3: Fig. 9 shown.

[0137] Step S1 , thinning the area on the cover layer corresponding to the first adhesive layer to form a first concave area B1 .

[0138] In step S1 , the cover plate layer 12 may be thinned by mechanical processing, for example, by forming the first concave area B1 by milling on a lathe.

[0139] Step S2, forming a shielding layer on the cover layer, wherein the area where the shielding layer is formed includes the first concave area B1.

[0140] In step S2 , the shielding layer may specifically be ink, and the shielding layer may be formed on the cover plate layer 12 by spraying, coating, or the like.

[0141] Step S3, laminating the cover layer formed with the shielding layer on the display panel formed with the first adhesive layer, the second adhesive layer and the polarizing layer, and the overlapping area of ​​the first adhesive layer and the second adhesive layer does not exceed a second set value.

[0142] In step S3, the cover layer 12, the display panel 10 and the polarizing layer 11 are laminated. During the laminating process, since a first concave area B1 is formed on the cover layer 12 in an area corresponding to the first adhesive layer 14, the ink serving as the shielding layer 13 is contained in the first concave area B1, so that the ink will not be squeezed with the first adhesive layer 14 and bubbles will not be generated due to the squeezing. This ensures that the first adhesive layer 14 does not need to extend a long distance from the effective display area to the frame area, and ensures that the overlapping and contact areas between the first adhesive layer 14 and the second adhesive layer 15 do not exceed a second set value, thereby reducing the interaction force between the first adhesive layer 14 and the second adhesive layer 15, improving or avoiding the phenomenon of wiring breakage on the bending structure in the subsequent pad bending process, thereby reducing the probability of poor bright line on the display module, as well as reducing the probability of deformation of the display module and substandard size specifications.

[0143] (7) Embodiments of display device

[0144] In this embodiment, the display device includes the display module described in the above display module embodiment.

[0145] The display device provided in this embodiment includes the display module described in the embodiment of the above display module, and has the same beneficial effects as the above display module, which will not be described in detail here.

[0146] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0147] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A display module, characterized in that: The display module comprises a display panel, a polarizing layer, a cover layer, a first adhesive layer and a second adhesive layer; The polarizing layer is disposed on the display panel, the cover layer is disposed on the polarizing layer, the first adhesive layer is disposed between the polarizing layer and the cover layer to bond the polarizing layer and the cover layer, a side of the first adhesive layer facing the cover layer is a first side, and a side of the first adhesive layer facing the display panel is a second side; The frame area on one side of the effective display area of ​​the display module has a bending structure, and the bending structure is used to arrange the wiring connected to the driver IC located on the back side of the display panel; the second glue layer is coated on the surface of the bending structure and is located between the first glue layer and the display panel; The contact area between the second side of the first adhesive layer and the second adhesive layer does not exceed a second set value; The edge of the second side of the first adhesive layer adjacent to the bending structure is flush with the edge of the polarizing layer, or the projection of the edge of the second side of the first adhesive layer adjacent to the bending structure on the polarizing layer is located within the polarizing layer, so that the second set value is 0; The display module further comprises a shielding layer, which is arranged in the frame area of ​​the display module and is used to shield the edge structure of the display module, and the shielding layer is located between the cover plate layer and the first adhesive layer; The contact area between the first side of the first adhesive layer and the shielding layer is not less than a first set value; or, a first concave area is formed in the first side of the first adhesive layer and / or the area of ​​the cover layer that contacts the shielding layer; When the contact area between the first adhesive layer and the shielding layer reaches or exceeds the first set value, the bubbles generated between the first adhesive layer and the shielding layer can be completely eliminated or the bubbles between the two can be eliminated below a certain number; when the contact area between the first adhesive layer and the shielding layer is less than the first set value, the bubbles generated between the first adhesive layer and the shielding layer cannot be completely eliminated or the bubbles between the two cannot be eliminated below a certain number.

2. The display module according to claim 1, characterized in that: On the side where the bending structure is located, the first adhesive layer extends from the effective display area to the frame area; The area of ​​the first side of the first adhesive layer that contacts the shielding layer is the first area; A projection of an edge of the second side of the first adhesive layer adjacent to the bending structure on the first side of the first adhesive layer is located within the first region, so as to form a second concave area concave toward the first side at the edge of the first adhesive layer adjacent to the bending structure.

3. The display module according to claim 2, characterized in that: The length of the first area in the direction from the effective display area to the frame area is not less than 0.4 mm.

4. The display module according to claim 2, characterized in that: The thickness of the second concave area in the direction from the edge of the polarizing layer to the frame area is not less than 50 micrometers.

5. The display module according to claim 2, characterized in that: The second concave area is formed by cutting or laser sintering; or The first adhesive layer includes a first sublayer and a second sublayer bonded to each other, a projection of the second sublayer on the first sublayer is located within the first sublayer, and a partial area of ​​the projection of the first sublayer on the second sublayer is located outside the second sublayer.

6. The display module according to claim 5, characterized in that: The thickness of the first sub-layer is not less than the thickness of the second sub-layer.

7. The display module according to claim 2, characterized in that: The second concave area is in a wedge shape or a rectangle shape.

8. The display module according to claim 7, characterized in that: The second concave area is in a wedge shape, and the angle of the oblique side of the wedge facing the second adhesive layer is in a range of 30 to 60 degrees.

9. The display module according to claim 1, characterized in that: The first concave area on the cover plate layer is formed by machining; The first concave area on the first adhesive layer is formed by cutting or laser sintering.

10. The display module according to claim 1, characterized in that: The first adhesive layer is optical adhesive, and the second adhesive layer is micro-coating adhesive.

11. A method for preparing a display module, characterized in that: The method for preparing the display module is used to prepare the display module according to any one of claims 1 to 10, and the contact area between the first side of the first adhesive layer in the display module and the shielding layer is not less than a first set value, and the method for preparing the display module comprises: A second concave area is formed on an edge of the first adhesive layer on one side adjacent to the bending structure and is concave toward the first side; The second side of the first adhesive layer is bonded to the display panel having the polarizing layer, the bending structure and the second adhesive layer, and the first side is bonded to the cover layer having the shielding layer.

12. The method for preparing a display module according to claim 11, characterized in that: The step of forming the second concave area comprises: The first sublayer and the second sublayer are laminated together; after lamination, a partial area of ​​the first sublayer overlaps with the second sublayer, and the first sublayer has a non-overlapping area that does not overlap with the second sublayer, and the non-overlapping area is a second concave area to be formed.

13. The method for preparing a display module according to claim 12, characterized in that: The projection of the second sublayer on the first sublayer is larger than the overlapping area of ​​the projection and the first sublayer; After the first sub-layer and the second sub-layer are attached to each other, the second sub-layer is cut to remove other areas of the second sub-layer outside the overlapping area between the projection of the second sub-layer and the first sub-layer.

14. The method for preparing a display module according to claim 11, characterized in that: The step of forming the second concave area comprises: Cutting the adhesive layer at an edge of the first adhesive layer on one side adjacent to the bending structure to separate the adhesive layer at a second side edge portion of the first adhesive layer to form the second concave area; or The edge of the first adhesive layer on one side adjacent to the bending structure is irradiated with laser at the edge area of ​​the second side, so that the adhesive layer in the edge area is sintered and removed to form the second concave area.

15. A method for preparing a display module, characterized in that: The method for preparing the display module is used to prepare the display module according to any one of claims 1 to 10, and a first concave area is formed in the area where the first side of the first adhesive layer in the display module contacts the shielding layer, and the method for preparing the display module comprises: Coating a second adhesive layer on the structure to be bent at one side edge of the display panel with the polarizing layer connected to the driving IC; Thinning a designated area on the first side of the first adhesive layer to form a first concave area; forming a first adhesive layer on the polarizing layer, wherein an overlapping area between the first adhesive layer and the second adhesive layer does not exceed a second set value; Filling a shielding layer into a first concave area formed on a first side of the first adhesive layer; The cover layer is attached to the first adhesive layer.

16. A method for preparing a display module, characterized in that: The method for preparing the display module is used to prepare the display module according to any one of claims 1 to 10, and a first concave area is formed in the region of the cover layer in contact with the shielding layer in the display module, and the method for preparing the display module comprises: Thinning the area on the cover plate layer corresponding to the first adhesive layer to form a first concave area; forming a shielding layer on the cover plate layer, wherein the area where the shielding layer is formed includes the first concave area; The cover layer formed with the shielding layer is attached to the display panel formed with the first adhesive layer, the second adhesive layer and the polarizing layer, and the overlapping area of ​​the first adhesive layer and the second adhesive layer does not exceed the second set value.

17. A display device, characterized in that: The display device comprises the display module according to any one of claims 1 to 10.

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