Display module and display device

Abstract

The utility model provides a display module, a manufacturing method thereof and a display device. The display module comprises a display panel, the display panel comprises a display part, a binding part and a bending part located between the display part and the binding part, the display part is provided with a light emitting surface and a backlight surface which are oppositely arranged, and the binding part is bent to one side of the backlight surface of the display part through the bending part; the protective layer covers the surface of one side, far away from the display part, of the bent part, the elastic modulus of the protective layer is 50-200MPa, and the surface of one side, far away from the bent part, of the protective layer is a non-stick surface, or a conductive layer is arranged on the surface of one side, far away from the bent part, of the protective layer. The protective layer or the protective layer and the conductive layer can effectively reduce the risk of cracks generated in the bending process of the display module, MCL glue is omitted in the display module, the coating and curing process of the MCL glue is reduced, the production time is saved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of display technology, and specifically, to a display module and a display device. Background Art

[0002] With the development of display technology, the advantages of flexible display screens in terms of narrow bezels and high screen-to-body ratio are becoming increasingly prominent. Shortening the bezel has become an important way to increase the screen-to-body ratio. Narrow bezels can be achieved by bending the binding part of the display panel to the driver chip to the back of the display panel. However, as the bending radius of the display panel decreases, the bending tensile stress on the bending part increases, which increases the risk of cracks in the bending part. At present, protective glue (MCL glue) is usually set on the outside of the bending part to buffer the bending part during the bending process and reduce the risk of cracks in the bending part. Utility Model Content

[0003] The present utility model is based on the inventor's discovery and understanding of the following facts and problems:

[0004] The inventors have discovered that current flexible display screens still have a high risk of cracks when bent. Specifically, MCL glue is formed by a process of liquid glue coating and UV curing. The elastic modulus of the cured MCL glue is relatively large (generally 300-400 MPa), which will cause greater stress to the display panel during the bending process. Especially when the bending radius is further reduced, the stress caused by the MCL glue on the display panel is further increased, which further increases the risk of cracks in the bent portion. In addition, the MCL glue is not evenly coated during the coating process. In the area close to the display portion 11 of the display panel, the MCL glue 3 is too thick, which is easy to adhere to the ink layer 81 on the cover plate 80 (such as Figure 2 As shown in the figure, during the bending process, due to the adhesion of the MCL glue to the cover plate, the display panel will be pulled, the position where the MCL glue adheres to the cover plate causes local stress concentration, the neutral layer changes, and cracks are easily generated. In addition, there will be a problem of MCL residual glue left in the ink layer. In addition, for products with multiple curved edges, such as four-curved edge products, since the edge of the cover plate 80 is curved, there is also a problem that the MCL glue 3 on the surface of the bending portion 12 is easily adhered to the inner surface of the cover plate 80 during the bending process (as shown in the figure). Figure 3 As shown in the figure, the display panel is pulled during the bending process, increasing the risk of cracks.

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, in one aspect of the utility model, the utility model proposes a display module. The display module includes: a display panel, the display panel includes a display part, a binding part and a bending part located between the display part and the binding part, the display part has a light emitting surface and a backlight surface arranged relatively, and the binding part is bent to the backlight side of the display part through the bending part; a protective layer, the protective layer covers the surface of the bending part away from the display part, the elastic modulus of the protective layer is 50-200MPa, the surface of the protective layer away from the bending part is a non-stick surface, or the surface of the protective layer away from the bending part is provided with a conductive layer. The protective layer or the protective layer and the conductive layer can effectively reduce the risk of cracks during the bending process of the display module, and the MCL glue is omitted in the display module, the coating and curing process of the MCL glue is reduced, the production time is saved, and the production cost is reduced.

[0007] Furthermore, the protective layer includes foam or silicone gel.

[0008] Furthermore, the thickness of the protective layer is 0.04-0.08 mm.

[0009] Furthermore, the display module further includes: a driving chip, the driving chip is bound to the binding part, and the side of the driving chip away from the binding part is covered with a first insulating tape; a polarizer, the polarizer is arranged on the side of the light emitting surface of the display part, one end of the protective layer is connected to the polarizer, and the other end is connected to the first insulating tape; a supporting layer, the supporting layer is located between the binding part and the display part, and the side of the supporting layer away from the display part has a first area and a second area adjacent to each other, the binding part is located in the first area, and the second area is provided with a metal layer; a flexible circuit board, the flexible circuit board is arranged on the side of the metal layer away from the supporting layer, and is electrically connected to the driving chip.

[0010] Furthermore, the conductive layer is connected to the polarizer and extends toward the binding portion, covers the first insulating tape, and is electrically connected to the flexible circuit board. The conductive layer includes conductive cloth or conductive silver paste.

[0011] Furthermore, the first insulating tape further covers the flexible circuit board and extends to a portion of the surface of the metal layer. The conductive layer is connected to the polarizer and extends toward the binding portion, covering the first insulating tape and being electrically connected to the metal layer. The conductive layer includes a conductive cloth.

[0012] Furthermore, the thickness of the conductive cloth is 0.02-0.04 mm.

[0013] Furthermore, the thickness of the conductive silver paste is 0.01-0.02 mm.

[0014] Furthermore, a side of the conductive layer away from the first insulating tape is covered with a second insulating tape, and an orthographic projection of the second insulating tape on the plane where the display panel is located does not overlap with an orthographic projection of the bent portion on the plane where the display panel is located.

[0015] In another aspect of the present invention, the present invention provides a display device, which includes the display module described above, and thus the display device has all the features and beneficial effects of the display module described above, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0017] Figure 1 A schematic diagram showing the structure of a display module according to an embodiment of the utility model is shown;

[0018] Figure 2 A schematic diagram showing the structure of a display module before bending in the related art is shown;

[0019] Figure 3 A schematic diagram showing the structure of another display module in the related art is shown;

[0020] Figure 4 A schematic diagram showing the structure of a display module according to another embodiment of the utility model is shown;

[0021] Figure 5 A schematic diagram showing a flow chart of a method for manufacturing a display module according to an embodiment of the utility model is shown;

[0022] Figure 6 A schematic diagram showing the structure of a display module before bending according to an embodiment of the utility model is shown;

[0023] Figure 7 A schematic structural diagram of a display module before bending according to another embodiment of the utility model is shown.

[0024] Reference numerals:

[0025] 10: display panel; 11: display part; 12: bending part; 13: binding part; 1: light emitting surface; 2: backlight surface; 3: MCL glue; 4: first area; 5: second area; 20: protective layer; 30: conductive layer; 40: driving chip; 41: first insulating tape; 42: second insulating tape; 50: polarizer; 60: supporting layer; 61: metal layer; 70: flexible circuit board; 80: cover plate; 81: ink layer; 90: optical adhesive layer. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific technology or conditions are specified in the embodiments, the technology or conditions described in the literature in the art or the product instructions shall be followed.

[0027] In one aspect of the present invention, the present invention provides a display module. In some embodiments of the present invention, reference Figure 1 The display module includes: a display panel 10 and a protective layer 20, wherein the display panel 10 includes a display portion 11, a binding portion 13, and a bending portion 12 located between the display portion 11 and the binding portion 13, the display portion 11 has a light emitting surface 1 and a backlight surface 2 arranged opposite to each other, the binding portion 13 is bent to the backlight surface 2 side of the display portion 11 through the bending portion 12, the protective layer 20 covers the surface of the bending portion 12 away from the display portion 11, the elastic modulus of the protective layer 20 is 50-200MPa, the surface of the protective layer 20 away from the bending portion 12 is a non-stick surface, or the surface of the protective layer 20 away from the bending portion 12 is provided with a conductive layer 30.

[0028] In the display module, the elastic modulus of the protective layer is 50-200MPa, and the elastic modulus is relatively small. During the bending process, the stress generated by the protective layer on the display panel is relatively small, thereby reducing the risk of cracks in the display panel during the bending process. The protective layer with the above elastic modulus is conducive to further reducing the bending radius, which is conducive to obtaining a display module with a narrower frame. The protective layer with the above elastic modulus can provide better protection for the bending portion.

[0029] In addition, the surface of the protective layer away from the bending portion is a non-stick surface, or the surface of the protective layer away from the bending portion is provided with a conductive layer, which can isolate the protective layer from the cover plate, thereby avoiding adhesion of the protective layer to the cover plate, improving the current problem of cracks in the display panel caused by the adhesion of the MCL glue to the cover plate during the bending process, and further reducing the risk of cracks in the bending process of the display module. In addition, the MCL glue is omitted in the display module, reducing the coating and curing process of the MCL glue, saving production time, and reducing production costs.

[0030] It should be noted that the "non-stick surface" refers to a non-adhesive surface. In other words, this surface does not adhere to other non-adhesive film layers (such as a cover plate). More specifically, the adhesion of the non-stick surface may be less than 10g / cm, that is, after the non-stick surface contacts the non-adhesive film layer, a force less than 10g is applied to the surface with a width of 1cm, and the surface can be peeled off from the non-adhesive film layer.

[0031] The surface of the protective layer away from the bending portion is a non-stick surface, and the non-stick surface may be a property of the material constituting the protective layer. For example, according to some embodiments of the present invention, the elastic modulus is 50-200 MPa, and the protective layer with the non-stick surface may be a foam layer. On the one hand, the foam has a smaller elastic modulus, and generates less stress on the display panel during the bending process, thereby reducing the risk of bending cracks. On the other hand, the surface of the foam layer away from the bending portion is a non-stick surface, which can avoid adhesion to the cover plate and further reduce the risk of cracks.

[0032] Alternatively, the non-stick surface may be an isolation film attached to the surface of the material constituting the protective layer. For example, according to some embodiments of the utility model, the protective layer having an elastic modulus of 50-200 MPa and a non-stick surface may be a single-sided silicone gel layer. The single-sided silicone gel layer, i.e., the surface of the silicone gel away from the bending portion is attached with an isolation film, so that the protective layer has a non-stick surface. On the one hand, the silicone gel has a smaller elastic modulus and generates less stress on the display panel during the bending process, thereby reducing the risk of bending cracks. On the other hand, the surface of the single-sided silicone gel layer away from the bending portion is a non-stick surface, which avoids adhesion to the cover plate and further reduces the risk of cracks.

[0033] There is no particular restriction on the specific material of the isolation film in the single-sided silicone gel layer, as long as the overall elastic modulus of the single-sided silicone gel layer is 50-200 MPa. For example, the isolation film in the single-sided silicone gel layer can be made of polyurethane (PU), polyethylene terephthalate (PET) or polyimide (PI).

[0034] Alternatively, a conductive layer is provided on the surface of the protective layer away from the bending portion, and the conductive layer can isolate the protective layer from the cover plate to prevent the protective layer from adhering to the cover plate. In this case, the protective layer can include foam or silicone gel. When the protective layer is composed of silicone gel, the protective layer can be a double-sided silicone gel layer, and the double-sided silicone gel layer, that is, the surface of the silicone gel away from the bending portion is an adhesive surface. Since a conductive layer is provided on the surface of the double-sided silicone gel layer away from the bending portion, adhesion between the double-sided silicone gel layer and the cover plate can be avoided, thereby reducing the risk of cracks. When the protective layer is a foam layer or a single-sided silicone gel layer, a conductive layer can also be provided on the surface of the protective layer away from the bending portion to further prevent the protective layer from contacting the cover plate.

[0035] In some embodiments of the present invention, reference Figure 1 The thickness d of the protective layer 20 can be 0.04-0.08 mm, for example, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm. The protective layer with the above thickness can not only protect the bending portion, but also reduce the stress on the bending portion during the bending process and reduce the risk of cracks.

[0036] In some embodiments of the present invention, reference Figure 1 The binding portion 13 of the display panel is bound with a driver chip 40, and the side of the driver chip 40 away from the binding portion 13 is covered with a first insulating tape 41. The first insulating tape covers the driver chip to reduce the impact of external static electricity on the driver chip. The first insulating tape can be a single-sided insulating tape, and the specific material of the first insulating tape is not particularly limited, and those skilled in the art can design it according to specific circumstances.

[0037] In some embodiments of the present invention, reference Figure 1 The display module further includes a polarizer 50, a support layer 60 and a flexible circuit board 70. The polarizer 50 is arranged on the side of the light emitting surface 1 of the display unit 11. One end of the protective layer 20 is connected to the polarizer 50, and the other end is connected to the first insulating tape 41. The first insulating tape 41 can further cover the part of the binding part 13 that is not bound to the driver chip 40 to be connected to the protective layer 20. The support layer 60 is arranged between the display unit 11 and the binding part 13. The side of the support layer 60 away from the display unit 11 has a first area 4 and a second area 5 arranged adjacently. The binding part 13 is located in the first area 4, and the second area 5 is provided with a metal layer 61. The flexible circuit board 70 is arranged on the side of the metal layer 61 away from the support layer 60, and is electrically connected to the driver chip 40. The metal layer on the support layer can support the display panel. The constituent material of the metal layer is not particularly limited. For example, the constituent material of the metal layer can include copper or stainless steel.

[0038] In some embodiments of the present invention, reference Figure 1 , the conductive layer 30 is connected to the polarizer 50 and extends to the binding portion 13, covering the first insulating tape 41, and electrically connected to the flexible circuit board 70. In order to facilitate the electrical connection between the conductive layer and the flexible circuit board, the first insulating tape can also cover part of the flexible circuit board to support the conductive layer and realize the electrical connection between the conductive layer and the flexible circuit board. The inventors also found during the research that when the bending area of ​​the display module with MCL glue on the surface of the bending portion is subjected to an electrostatic discharge (ESD) test, the static electricity cannot be released, and the static electricity is easy to cause the bending portion to be at the starting point of the bending (such as Figure 3The A point shown in the figure is broken down, thereby affecting the display of the display module. In addition, the static electricity generated by human body touching or rubbing the screen will be transferred to the display panel through the stacking layer, which will also affect the screen display.

[0039] The utility model sets a conductive layer on the side of the protective layer away from the bending part. On the one hand, the conductive layer can isolate the protective layer and the cover plate. On the other hand, one end of the conductive layer is connected to the polarizer, and the other end is electrically connected to the flexible circuit board to form a charge conduction channel. When the bending area of ​​the display module is subjected to an electrostatic test, the charge can be conducted to the conductive layer and released along the conductive layer to one side of the flexible circuit board, thereby improving the anti-ESD capability. Since the conductive layer and the flexible circuit board are surface structures, that is, the charge is conducted from the point to the surface, the charge can be evenly spread out to reduce the accumulation of static electricity. Therefore, there are very few charges on one side of the flexible circuit board, which will not affect the flexible circuit board. In addition, through the above-mentioned conduction channel, the static electricity generated by the human body touching or rubbing the screen can also be conducted away, thereby reducing the impact of touch static electricity or friction static electricity on the screen display.

[0040] In this embodiment, the conductive layer 30 may include conductive cloth or conductive silver paste. The conductive cloth and conductive silver paste not only have good conductivity, but also have good ductility, can well match the shape of the bending portion of the display panel, form an electrostatic conduction channel, improve the anti-ESD capability of the display module, and can also isolate the protective layer and the cover plate.

[0041] In other embodiments of the present invention, reference Figure 4 , the first insulating tape 41 further covers the flexible circuit board 70 and extends to part of the surface of the metal layer 61. The conductive layer 30 is connected to the polarizer 50 and extends to the binding portion 13, covering the first insulating layer 41 and electrically connected to the metal layer 61. One end of the conductive layer is connected to the polarizer, and the other end is electrically connected to the metal layer to form a charge conduction channel. When the bending area of ​​the display module is subjected to an electrostatic test, the charge can be conducted to the conductive layer and released along the conductive layer to one side of the metal layer, thereby improving the anti-ESD capability. In addition, through the above-mentioned conduction channel, the static electricity generated by the human body touching or rubbing the screen can also be conducted away, thereby reducing the impact of touch static electricity or friction static electricity on the screen display.

[0042] In this embodiment, the conductive layer 30 may include a conductive cloth. The conductive cloth can be formed on the first insulating tape by attachment, which is easy to form a conductive channel between the polarizer and the metal layer, thereby improving the anti-ESD capability of the display module.

[0043] In some embodiments of the present invention, the thickness of the conductive cloth can be 0.02-0.04 mm, for example, 0.02 mm, 0.03 mm, 0.04 mm. The conductive cloth with the above thickness has both good conductivity and good ductility, reduces the risk of bending cracks, and improves the ESD resistance of the display module. The thickness of the conductive cloth is the dimension in the direction perpendicular to its extension direction.

[0044] In some embodiments of the utility model, the thickness of the conductive silver paste can be 0.01-0.02 mm. The conductive silver paste with the above thickness can not only ensure the ductility of the protective layer itself and reduce the risk of bending cracks, but also make the surface of the protective layer have good conductivity and improve the anti-ESD ability of the display module. The thickness of the conductive silver paste is the dimension in the direction perpendicular to its extension direction.

[0045] In some embodiments of the present invention, reference Figure 4 The side of the conductive layer 30 away from the first insulating tape 41 can also be covered with a second insulating tape 42. The orthographic projection of the second insulating tape 42 on the plane where the display panel 10 is located does not overlap with the orthographic projection of the bending portion 12 on the plane where the display panel 10 is located. The second insulating tape protects the conductive layer to prevent the conductive layer from being affected by external scratches and affecting its conductive properties. The second insulating tape does not cover the bending portion, so it will not affect the bending. Figure 1 The side of the middle conductive layer 30 away from the first insulating tape 41 may also be covered with a second insulating tape (not shown in the figure), and the orthographic projection of the second insulating tape on the plane where the display panel is located does not overlap with the orthographic projection of the bending portion on the plane where the display panel is located.

[0046] refer to Figure 1 and Figure 4 The display module further includes an optical adhesive layer 90 and a cover plate 80. The optical adhesive layer 90 is located on the side of the polarizer 50 away from the display panel 10. The cover plate 80 is bonded to the polarizer 50 through the optical adhesive layer 90. An ink layer 81 is provided on the edge of the surface of the cover plate 80 facing the optical adhesive layer 90. The ink layer 81 has a certain overlap area with the optical adhesive layer 90. The structure of the cover plate 80 is not particularly limited, and its edge can be a planar structure or a curved structure.

[0047] In another aspect of the present invention, the present invention provides a display device. The display device includes the display module described above, so the display device has all the features and beneficial effects of the display module described above. In general, compared with a display device with MCL glue disposed on the bending portion, the display device has a reduced risk of bending cracks, improved ESD resistance, and reduced production costs.

[0048] There is no special requirement for the specific type of the display device, and technicians in this field can flexibly choose according to actual needs. For example, the display device can be a mobile phone, a television, a notebook, an iPad, a game console, a kindle, a car display device, and all other devices and equipment with display functions.

[0049] Those skilled in the art will appreciate that, in addition to the display module described above, the display device also includes structures or components necessary for a conventional display device, and may also include structures such as an audio module, a camera module, and a touch module.

[0050] In another aspect of the present invention, the present invention provides a method for manufacturing a display module. In some embodiments of the present invention, the display module manufactured by the method can be the display module described above, and thus, the display module manufactured by the method has the same features and beneficial effects as the display module described above, which will not be described in detail here.

[0051] In some embodiments of the present invention, reference Figure 5 , the method comprising:

[0052] S100: providing a display panel.

[0053] In this step, a display panel is provided. Figure 6 and Figure 7 The display panel 10 includes a display portion 11, a binding portion 13, and a bending portion 12 located between the display portion 11 and the binding portion 13. The display portion 11 has a light emitting surface 1 and a backlight surface 2 that are arranged opposite to each other.

[0054] S200: a protective layer is provided on the surface of the bending portion located on the light emitting surface side.

[0055] In this step, a protective layer 20 is provided on the surface of the bending portion 12 located on the light emitting surface side. The elastic modulus of the protective layer is 50-200 MPa, and the elastic modulus is relatively small. During the bending process, the stress generated by the protective layer on the display panel is relatively small, thereby reducing the risk of cracks in the display panel during the bending process. The protective layer with the above elastic modulus is conducive to further reducing the bending radius, and is conducive to obtaining a display module with a narrower frame. The protective layer with the above elastic modulus can provide better protection for the bending portion.

[0056] The surface of the protective layer away from the bending portion is a non-stick surface, or, in this step, a conductive layer is provided on the surface of the protective layer away from the bending portion, and the conductive layer can isolate the protective layer from the cover plate. In this way, the adhesion of the protective layer to the cover plate can be avoided, and the current problem of the display panel being pulled and cracked during the bending process due to the adhesion of the MCL glue to the cover plate can be improved, and the risk of cracks during the bending process of the display module can be further reduced.

[0057] In some embodiments of the present invention, the protective layer may include foam or silicone gel, and the protective layer may be attached to the surface of the bent portion. The display module omits the MCL glue, reduces the coating and curing process of the MCL glue, and forms the protective layer by attaching, which saves production time and reduces production costs.

[0058] S300: bending the bending portion to bend the binding portion to the backlight side of the display portion.

[0059] In this step, the bending portion is bent, and the binding portion is bent to the backlight side of the display portion to obtain a display module.

[0060] In some specific embodiments of the present invention, the display module can be obtained by the following steps:

[0061] In S100, after providing the display panel, a polarizer 50 is disposed on the light emitting surface side of the display portion 11, and a driving chip 40 electrically connected to a flexible circuit board 70 is bound to the binding portion 13, and a first insulating tape 41 (such as a first insulating tape 41) is attached to the side of the driving chip 40 away from the binding portion 13. Figure 6 As shown), the first insulating tape covers the driver chip, which can reduce the impact of external static electricity on the driver chip.

[0062] In S200, when attaching the protective layer, one end of the protective layer 20 is connected to the polarizer 50, and the other end is connected to the first insulating tape 41 (such as Figure 6 When a conductive layer is provided on the surface of the protective layer away from the bending portion, the conductive layer 30 is connected to the polarizer 50 and extends toward the binding portion 13, covers the first insulating tape 41, and is electrically connected to the flexible circuit board 70 (as shown in FIG. Figure 6 As shown). The conductive layer may include conductive cloth, in which case the conductive layer may be formed by pasting, and the process is simple and easy to operate. Alternatively, the conductive layer may include conductive silver paste, in which case the conductive layer may be formed by coating.

[0063] In S300, before bending the bending portion, the method further includes attaching a support layer 60 to the backlight side of the display portion, wherein the support layer 60 has a first region 4 and a second region 5 disposed adjacent to each other on a side away from the display portion 11, and the second region 5 is provided with a metal layer 61 (such as Figure 6 The supporting layer is used to support the display panel after bending. The optical adhesive layer is attached to the side of the polarizer away from the display part, and the cover plate is attached to the side of the optical adhesive layer away from the polarizer. After attaching the above film layer, the bending part is bent so that the binding part is bent to the first area of ​​the supporting layer, and the flexible circuit board is arranged on the metal layer so that the binding part is bent to the backlight side of the display part to obtain a display module (as shown in FIG. Figure 1 shown).

[0064] In this embodiment, after the conductive layer is set in S200, a second insulating tape can be attached to the side of the conductive layer away from the first insulating tape, the second insulating tape covers the conductive layer, and the orthographic projection of the second insulating tape on the display panel does not overlap with the orthographic projection of the bending portion on the display panel, so as to protect the conductive layer.

[0065] In some other specific embodiments of the present invention, the display module can also be obtained by the following steps:

[0066] In S100, after providing the display panel, a polarizer 50 is disposed on one side of the light emitting surface of the display portion 11, and a driver chip 40 electrically connected to a flexible circuit board 70 is bound to the binding portion 13, and a first insulating tape 41 is attached to a side of the driver chip 40 and the flexible circuit board 70 away from the binding portion 13, and the first insulating tape 41 is suspended and extends to a side of the flexible circuit board 70 away from the driver chip 40 (such as Figure 7 As shown), the first insulating tape covers the driver chip, which can reduce the impact of external static electricity on the driver chip.

[0067] In S200, when attaching the protective layer, one end of the protective layer 20 is connected to the polarizer 50, and the other end is connected to the first insulating tape 41 (such as Figure 7 When a conductive layer is provided on the surface of the protective layer away from the bending portion, the conductive layer 30 is connected to the polarizer 50 and extends toward the binding portion 13, covers the first insulating tape 41, and extends in the air with the first insulating tape 41 to the side of the flexible circuit board 70 away from the driving chip 40 (as shown in FIG. Figure 7 As shown). The conductive layer may include a conductive cloth. In this case, the conductive layer may be formed by attaching, and the process is simple and easy to operate.

[0068] In S300, before bending the bending portion, the method further includes attaching a support layer 60 to the backlight side of the display portion, wherein the support layer 60 has a first region 4 and a second region 5 disposed adjacent to each other on a side away from the display portion 11, and the second region 5 is provided with a metal layer 61 (such as Figure 7 As shown). The support layer is used to support the display panel after being bent. And it also includes attaching an optical adhesive layer to the side of the polarizer away from the display part, and attaching a cover plate to the side of the optical adhesive layer away from the polarizer. After attaching the above-mentioned film layer, the bending part is bent so that the binding part is bent to the first area of ​​the support layer, and the flexible circuit board is arranged on the metal layer to bend the binding part to the backlight side of the display part, and the suspended part of the first insulating tape is attached to a part of the surface of the metal layer, and the conductive layer is electrically connected to the metal layer to obtain a display module (as shown). Figure 4 shown).

[0069] In this embodiment, after the conductive layer is set in S200, a second insulating tape can be attached to the side of the conductive layer away from the first insulating tape. The second insulating tape covers the conductive layer, and the orthographic projection of the second insulating tape on the display panel does not overlap with the orthographic projection of the bent portion on the display panel to protect the conductive layer. The second insulating tape is suspended with the conductive layer, and after bending, it is attached to the metal layer with the conductive layer.

[0070] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 specification. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0072] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A display module, characterized in that: include: A display panel, the display panel comprising a display portion, a binding portion, and a bending portion located between the display portion and the binding portion, the display portion having a light emitting surface and a backlight surface arranged opposite to each other, the binding portion being bent to a side of the backlight surface of the display portion via the bending portion; A protective layer covers the surface of the bending portion away from the display portion, the elastic modulus of the protective layer is 50-200 MPa, the surface of the protective layer away from the bending portion is a non-stick surface, or the surface of the protective layer away from the bending portion is provided with a conductive layer.

2. The display module according to claim 1, characterized in that: The protective layer includes foam or silicone gel.

3. The display module according to claim 1, characterized in that: The thickness of the protective layer is 0.04-0.08 mm.

4. The display module according to claim 1, characterized in that: The display module further comprises: A driving chip, the driving chip is bound to the binding portion, and a side of the driving chip away from the binding portion is covered with a first insulating tape; A polarizer, wherein the polarizer is arranged on one side of the light emitting surface of the display unit, one end of the protective layer is connected to the polarizer, and the other end of the protective layer is connected to the first insulating tape; A supporting layer, the supporting layer is located between the binding portion and the display portion, the supporting layer has a first region and a second region disposed adjacent to each other on a side away from the display portion, the binding portion is located in the first region, and a metal layer is disposed in the second region; A flexible circuit board is arranged on a side of the metal layer away from the support layer and is electrically connected to the driving chip.

5. The display module according to claim 4, characterized in that: The conductive layer is connected to the polarizer and extends toward the binding portion, covers the first insulating tape, and is electrically connected to the flexible circuit board. The conductive layer includes conductive cloth or conductive silver paste.

6. The display module according to claim 4, characterized in that: The first insulating tape further covers the flexible circuit board and extends to a portion of the surface of the metal layer. The conductive layer is connected to the polarizer and extends toward the binding portion, covering the first insulating tape and being electrically connected to the metal layer. The conductive layer includes conductive cloth.

7. The display module according to claim 5 or 6, characterized in that: The thickness of the conductive cloth is 0.02-0.04 mm.

8. The display module according to claim 5, characterized in that: The thickness of the conductive silver paste is 0.01-0.02 mm.

9. The display module according to claim 5 or 6, characterized in that: A side of the conductive layer away from the first insulating tape is covered with a second insulating tape, and an orthographic projection of the second insulating tape on the plane where the display panel is located does not overlap with an orthographic projection of the bent portion on the plane where the display panel is located.

10. A display device, characterized in that: A display module comprising any one of claims 1 to 9.

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