Display module and display device

Abstract

The embodiment of the present application provides a display module and a display device, wherein the display module includes a display panel, a polarizer disposed on the display side of the display panel, a support layer disposed on the non-display side of the display panel, and a first edge-sealing glue and a first blocking unit disposed on the side of the support layer facing the display panel; the first edge-sealing glue covers the edge of the bonding surface between the display panel and the polarizer, and the first blocking unit is located on the side of the first edge-sealing glue away from the display panel. In the display module provided in the embodiment of the present application, the first blocking unit can be used to control the width and height of the first edge-sealing glue, which can avoid the problem of poor sealing effect on the polarizer due to defects such as overflowing glue and leaking glue, thereby improving the reliability of the polarizer and the display module as a whole.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of display devices, and more particularly to a display module and a display device. Background Art

[0002] In a display module, a polarizer is usually provided to reduce the reflectivity of the display module to ambient light. However, the PVA (polyvinyl alcohol) layer in the polarizer is easily affected by the intrusion of water vapor in the environment, so the polarizer needs to be protected.

[0003] In the related art, glue is usually applied around the display module to prevent water vapor from invading the polarizer. However, the current structure of the display module is not conducive to the control of the glue coating process. The width and height of the glue coating cannot be controlled, and defects such as glue overflow and glue leakage are prone to occur, which leads to poor sealing effect on the polarizer. Summary of the invention

[0004] In view of this, an object of the embodiments of the present application is to provide a display module and a display device.

[0005] In a first aspect, an embodiment of the present application provides a display module, including:

[0006] Display panel,

[0007] A polarizer disposed on the display side of the display panel,

[0008] A support layer is provided on the non-display side of the display panel,

[0009] and, a first edge sealing glue and a first barrier unit disposed on a side of the support layer facing the display panel;

[0010] The first edge-sealing adhesive covers the edge of the bonding surface between the display panel and the polarizer, and the first blocking unit is located on a side of the first edge-sealing adhesive away from the display panel.

[0011] In the display module provided in the embodiment of the present application, a first barrier unit can be used to control the width and height of the first edge sealing glue, thereby avoiding the problem of poor sealing effect on the polarizer due to defects such as overflowing glue and leaking glue, and improving the reliability of the polarizer and the display module as a whole.

[0012] In a possible implementation manner, an end of the first blocking unit away from the supporting layer is aligned with or exceeds a bonding surface between the display panel and the polarizer.

[0013] In a possible embodiment, the display panel includes a display area and a peripheral area located outside the display area on the display side, the peripheral area includes a binding area and a non-binding area, the outer edge of the binding area is a binding side, and the outer edge of the non-binding area is a non-binding side; the first edge sealing glue and the first isolation gate are both extended along the non-binding side.

[0014] In a possible implementation, the polarizer is arranged to avoid the binding area, the display module includes a second edge-sealing adhesive and a second blocking unit, the second edge-sealing adhesive is arranged on a side of the display panel close to the polarizer, and is located between the binding side and the edge of the polarizer; the second edge-sealing adhesive covers the edge of the bonding surface between the polarizer and the display panel;

[0015] The second blocking unit is arranged on the side of the supporting layer facing the display panel and is located outside the binding side; the end of the second blocking unit away from the supporting layer is aligned with or exceeds the bonding surface of the display panel and the polarizer.

[0016] In a possible implementation, the display module includes a COF assembly, the COF assembly includes a flexible circuit board and a control chip bound to the flexible circuit board, the flexible circuit board is arranged in the binding area of ​​the display panel, and is bent from the binding side to a side of the support layer away from the display panel;

[0017] The second blocking unit extends along the binding side and has an avoidance groove for avoiding the flexible circuit board;

[0018] The second edge sealing adhesive is extended along the binding side and covers the flexible circuit board located in the binding area.

[0019] In a possible implementation manner, an end surface of the support layer corresponding to the bending position of the flexible circuit board is a support arc surface, and the support arc surface is used to support the bending area of ​​the flexible circuit board.

[0020] In a possible embodiment, the cross-sectional shape of the first barrier unit in the first section and the cross-sectional shape of the second barrier unit in the second section are trapezoidal, semicircular, triangular or quadrilateral, the first section is parallel to the light emitting direction and perpendicular to the non-binding side, and the second section is parallel to the light emitting direction and perpendicular to the binding side.

[0021] In a possible implementation manner, the first barrier unit, the second barrier unit, and the support layer are an integrated structure machined from a metal material.

[0022] In a possible implementation, the display panel is a flexible display panel, the display module further includes a touch panel and a protective cover, the touch panel is arranged on a side of the polarizer away from the display panel, and the protective cover is arranged on a side of the touch panel away from the polarizer.

[0023] In a second aspect, an embodiment of the present application provides a display device, comprising a display module as described in any one of the embodiments of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a display module provided in an embodiment of the present application;

[0026] Figure 2 for Figure 1 A partial enlarged view of the middle A area;

[0027] Figure 3 for Figure 1 A partial enlarged view of the middle B area;

[0028] Figure 4 for Figure 1 A schematic diagram of the structure of the display panel on the display side;

[0029] Figure 5 for Figure 1 A cross-sectional view of the module in a first cross section is shown;

[0030] Figure 6 for Figure 5 A partial enlarged view of the middle C area;

[0031] Figure 7 for Figure 1 A cross-sectional view of the module in the second section is shown;

[0032] Figure 8 for Figure 7 A partial enlarged view of the D area in the middle;

[0033] Fig. 9 for Figure 1 Schematic diagram of the structure of the middle support layer and the barrier unit;

[0034] Fig.10 This is a schematic structural diagram of a second barrier unit provided in another embodiment of the present application.

[0035] Description of reference numerals:

[0036] 1-chip-on-film assembly, 11-flexible circuit board, 2-printed circuit board, 3-touch circuit board, 4-support layer, 41-support arc surface, 5-barrier unit, 51-first barrier unit, 52-second barrier unit, 53-avoidance groove, 6-edge sealing glue, 61-first edge sealing glue, 62-second edge sealing glue, 7-second transparent optical glue, 8-polarizer, 9-first transparent optical glue, 10-display panel, 101-first panel side, 102-display area, 1021-first display side, 1022-second display side, 1023-third display side, 1024-fourth display side, 103-peripheral area, 104-binding area, 105-second panel side, 106-third panel side, 107-fourth panel side, 11-protective cover, 12-touch panel, 13-thermal conductive glue, 14-fitting surface. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] An embodiment of the present application provides a display device, which may be an electronic device with a display function such as a mobile phone, a tablet computer, a laptop computer, a wearable device, an all-in-one touch screen device, a vehicle-mounted central control display device or a vehicle-mounted instrument panel, and the display device includes a display module for displaying.

[0039] It should be noted that, in order to facilitate the description and understanding of the technical solutions in the embodiments of the present application, this document defines the direction parallel to the X-coordinate axis in the accompanying drawings as the first direction, the direction parallel to the Y-coordinate axis as the second direction, and the direction parallel to the Z-coordinate axis as the third direction, and describes the technical solutions in the embodiments of the present application with reference to the first direction, the second direction and the third direction.

[0040] Figure 1 A schematic diagram of the structure of a display module provided in an embodiment of the present application is shown in FIG. Figure 2 for Figure 1 A partial enlarged view of area A in the middle. Figure 3 for Figure 1 A partial enlarged view of area B in the middle. Figure 4 for Figure 1 The schematic diagram of the structure of the display panel on the display side is shown in the figure. Figure 5for Figure 1 , showing a cross-sectional view of the module in the first section, Figure 6 for Figure 5 A partial enlarged view of the middle C area. Figure 7 for Figure 1 , showing a cross-sectional view of the module in the second section, Figure 8 for Figure 7 A local enlarged view of the D area in the middle; wherein the first cross section is parallel to the first direction and the third direction, and the second cross section is parallel to the second direction and the third direction.

[0041] like Figures 1 to 8 As shown, the display module includes a display panel 10, a polarizer 8, a support layer 4, a protective cover plate 11, a touch panel 12 and a printed circuit board 2 (Printed Circuit Board, abbreviated as PCB board), wherein the display panel 10 can be of any type, for example, it can be a liquid crystal display panel (Liquid Crystal Display, abbreviated as LCD), an organic electroluminescence display panel (Organic Electroluminescence Display, abbreviated as OLED), a sub-millimeter light emitting diode display panel (Mini LED) and a micrometer light emitting diode display panel (Micro LED), etc.; in addition, the display panel 10 can be a rigid panel structure or a flexible panel structure that can be bent. This article takes the display panel 10 using an OLED display panel and a flexible display panel as an example for description.

[0042] The display panel 10 is a plate-like structure, and includes a display side and a non-display side opposite to each other along the light emitting direction, that is, the light emitting direction of the display panel 10 is the direction from the non-display side to the display side. In this embodiment, the light emitting direction is parallel to the third direction, and the display panel 10 is a plate-like structure parallel to the first direction and the second direction. The display panel 10 also includes an outer peripheral end face connecting the display side and the non-display side in the light emitting direction, and the outer peripheral end face of the display panel 10 is defined as a panel end face, and the panel end face is parallel to the light emitting direction, that is, the third direction.

[0043] Please refer to Figure 4 The display panel 10 includes a display area 102 and a peripheral area 103 on the display side. The display area 102 is an area for display. The display panel 10 is provided with a plurality of pixel units arranged in an array corresponding to the display area 102; the peripheral area 103 is provided in the outer peripheral area of ​​the display area 102, including a binding area 104 for binding, and the binding area 104 is provided on one side of the display area 102; other areas in the peripheral area 103 other than the binding area 104 are collectively referred to as non-binding areas.

[0044] The edge side of the display panel 10 on the display side is divided into a binding side and a non-binding side according to the positional relationship with the binding area 104. The binding side is the side corresponding to the binding area 104, and is located on the same side of the display area 102 as the binding area 104. The non-binding side is connected to the binding side to form an edge side surrounding the display side of the display panel 10. From another perspective, the outer edge of the binding area 104 away from the display area 102 is the binding side, and the outer edge of the non-binding area away from the display area 102 is the non-binding side.

[0045] The display panel 10 may be a plate-like structure of any shape, such as a rectangular plate, a square plate or a circular plate, etc. The edge shape of the display side is the shape of the display panel 10; the shape of the display area 102 may also be any shape, such as a rectangle, a square or a circle, etc. It should be noted that for different shapes of the display panel 10, the shapes of the display area 102 and the positions of the binding area 104, the division of the binding side and the non-binding side is different, and there may be no clear dividing point.

[0046] This article takes the example that the display panel 10 is a rectangular plate, and the outline shapes of the display side and the display area 102 are both rectangular.

[0047] like Figure 4 As shown, the edge sides of the display side include a first panel side 101, a second panel side 105, a third panel side 106 and a fourth panel side 107. The first panel side 101 and the third panel side 106 are sides that are arranged opposite to each other along the first direction and are of equal length along the second direction. The second panel side 105 and the fourth panel side 107 are sides that are arranged opposite to each other along the second direction and are of equal length along the third direction. Figure 4 Taking the orientation shown in as an example, the first panel side 101 and the third panel side 106 are longitudinal sides extending up and down, and the first panel side 101 is located on the left side of the third panel side 106, the second panel side 105 and the fourth panel side 107 are transverse sides extending left and right, and the second panel side 105 is located below the fourth panel side 107. The first panel side 101, the second panel side 105, the third panel side 106 and the fourth panel side 107 are connected to form a rectangular edge outline.

[0048] The panel end surface corresponds to the display side, including a first panel end surface corresponding to the first panel side 101 , a second panel end surface corresponding to the second panel side 105 , a second panel end surface corresponding to the third panel side 106 , and a fourth panel end surface corresponding to the fourth panel side 107 .

[0049] The edge sides of the display area 102 include a first display side 1021, a second display side 1022, a third display side 1023 and a fourth display side 1024. The first display side 1021 is parallel to the first panel side 101, the second display side 1022 is parallel to the second panel side 105, the third display side 1023 is parallel to the third panel side 106, and the fourth display side 1024 is parallel to the fourth panel side 107; the first display side 1021, the second display side 1022, the third display side 1023 and the fourth display side 1024 are connected to form a rectangular edge outline.

[0050] In this embodiment, the display area 102 is arranged near the fourth panel side 107, and the area between the second panel side 105 and the second display side 1022 of the display panel 10 is the binding area 104, which is used to realize the binding function; correspondingly, the second panel side 105 is the binding side, and the second panel side 105 and the binding area 104 are located on the same side of the display area 102, and the first panel side 101, the third panel side 106 and the fourth panel side are collectively referred to as the non-binding area 104 side. Figure 4 In the embodiment shown in , the binding side and the binding area 104 are both located below the display area 102; the peripheral areas on the left, right and top of the display area 102 are non-binding areas.

[0051] The packaging process of the display panel 10 can be COF (Chip On Flex or Chip On Film) packaging. Accordingly, the display module includes a chip on film assembly 1, and the chip on film assembly 1 includes a flexible circuit board 11 and a control chip bound to the flexible circuit board 11. One end of the flexible circuit board 11 is bound to the binding area 104 of the display panel 10, and is bent on the outer side of the binding side to the back side of the display panel 10 facing the non-display side, thereby achieving the design purpose of a narrow frame.

[0052] Please refer to Figure 6 and Figure 8 The polarizer 8 in the display module is arranged on the display side of the display panel 10. By arranging the polarizer 8, the reflectivity of the display module to the ambient light can be effectively reduced, thereby achieving the purpose of improving the display effect; therefore, the polarizer 8 should at least cover the display area 102 of the display panel 10; in addition, in order to avoid affecting the binding of the flip chip film assembly 1, the polarizer 8 should avoid the binding area 104 of the display panel 10.

[0053] In this embodiment, the polarizer 8 is a rectangular plate-like structure parallel to the display panel 10, that is, the rectangular plate-like structure is parallel to the first direction and the second direction. The polarizer 8 includes a first surface and a second surface relative to each other along the light emitting direction (third direction). The first surface is attached to the display panel 10, and the second surface is away from the display panel 10 relative to the first surface. The attached surface 14 of the display panel 10 and the polarizer 8 can also be understood as the first surface. The polarizer 8 also includes an outer peripheral end surface connecting the first surface and the second surface along the light emitting direction. The outer peripheral end surface of the polarizer 8 is defined as the end surface of the polarizer 8, and the end surface of the polarizer 8 is parallel to the light emitting direction.

[0054] In the rectangular plate-shaped polarizer 8, the end faces of the polarizer 8 include a first polarization end face, a second polarization end face, a third polarization end face and a fourth polarization end face. The first polarization end face is aligned with the end face of the first panel, the third polarization end face is aligned with the end face of the third panel, and the fourth polarization end face is aligned with the end face of the fourth panel. Alignment here means that the two overlap in the orthographic projection relative to the light emitting direction.

[0055] The second polarizing end face is parallel to the second panel end face, but is located between the binding area 104 and the second display side 1022 . That is, the end of the polarizer 8 corresponding to the binding area 104 extends to the position between the binding area 104 and the display area 102 , thereby achieving the purpose of avoiding the binding area 104 .

[0056] The support layer 4 in the display module is arranged on the non-display side of the display panel 10, and is a metal layer structure parallel to the display panel 10, and is used to support and dissipate heat for the display panel 10. The material for making the support layer 4 can be a metal with certain ductility and good thermal conductivity, such as aluminum, copper, etc. In order to achieve a better heat dissipation effect, a thermal conductive adhesive 13 is arranged between the support layer 4 and the display panel 10.

[0057] Since the polarizer 8 includes a PVA (polyvinyl alcohol) layer, the PVA layer is susceptible to the intrusion of water vapor in the environment. The intrusion of water vapor may cause the polarizer 8 to fail, thereby causing reliability problems and affecting the reliability of the display module. Therefore, the polarizer 8 needs to be protected.

[0058] In this embodiment, glue is applied to the peripheral end faces of the display panel 10 and the polarizer 8 on the support layer 4 to form an edge-sealing glue 6 that seals the edge of the bonding surface 14 of the display panel 10 and the polarizer 8. The edge-sealing glue 6 is usually formed by curing a liquid glue, which can be ultraviolet (UV) curing, thermal curing, and water vapor curing. The edge-sealing glue 6 can prevent water vapor from invading the polarizer 8, thereby improving the reliability of the polarizer 8 and the display module as a whole.

[0059] The support layer 4 includes a support surface close to the display panel 10, and the support surface is parallel to the display panel 10, that is, parallel to the first direction and the second direction. The edge sealant 6 is arranged on the support surface, and the peripheral end faces of the polarizer 8 and the display panel 10 sealed by the edge sealant 6. In this article, the extension distance of the edge sealant 6 from the support surface along the light emitting direction is defined as the height of the edge sealant 6, and the distance relative to the peripheral end faces of the polarizer 8 and the display panel 10 along the direction parallel to the support surface is defined as the width of the edge sealant 6. The width and height of the edge sealant 6 are important factors affecting the sealing effect. Both the lower and narrower edge sealants 6 may lead to the failure of the sealing effect. However, during the glue coating process, the glue coating width and height cannot be effectively controlled, so it is easy to cause defects such as glue overflow and glue leakage, which leads to poor sealing effect of the edge sealant 6.

[0060] In view of this, in an embodiment of the present application, a barrier unit 5 is arranged on the supporting surface of the supporting layer 4 around the peripheral end surfaces of the display panel 10 and the polarizer 8, and a glue coating area for limiting the edge sealing glue 6 is formed between the barrier unit 5 and the peripheral end surfaces of the display panel 10 and the polarizer 8. By applying glue in the glue coating area, the height and width of the edge sealing glue 6 can be controlled by the barrier unit 5, thereby ensuring the sealing reliability of the edge sealing glue 6.

[0061] The distance of the barrier unit 5 in the height direction of the edge sealant 6 is the height of the barrier unit 5, the distance in the width direction of the edge sealant 6 is the width of the barrier unit 5, and the distance of the inner side of the barrier unit 5 in the width direction relative to the peripheral end surface of the display panel 10 and the polarizer 8 is the width of the glue coating area; in order to achieve the blocking effect of the barrier unit 5 on the edge sealant 6, the height of the barrier unit 5 should be equal to or greater than the height of the bonding surface 14 of the polarizer 8 and the display panel 10 relative to the support surface, so that the height of the edge sealant 6 can be equal to or greater than the height of the bonding surface 14 of the polarizer 8 and the display panel 10 relative to the support surface, so as to ensure that the edge sealant 6 can better cover the edge of the bonding surface 14 of the polarizer 8 and the display panel 10. In order to ensure a better sealing effect, the width of the glue coating area can also be set according to the actual application scenario. For example, the height of the barrier unit 5 is 0.3-0.5mm, the width is 0.5-1mm, and the glue coating width limited by the barrier unit 5 is 0.3-1mm.

[0062] Fig. 9 for Figure 1 For a schematic diagram of the structure of the middle support layer 4 and the barrier unit 5, please refer to Fig. 9 The support layer 4 includes a first barrier unit 51 and a second barrier unit 52. The first barrier unit 51 is a barrier structure corresponding to the non-bound side of the display panel 10, and the second barrier unit 52 is a barrier structure corresponding to the bound side of the display panel 10. The edge sealing glue 6 includes a first edge sealing glue 61 corresponding to the first barrier unit 51, and a second edge sealing glue 62 corresponding to the second barrier unit 52.

[0063] Please refer to Fig. 9 , Figure 6 and Fig.10 The cross-sectional shape of the first barrier unit 51 at the first cross-section may be any shape such as a trapezoid, a semicircle, a triangle or a quadrilateral, as long as the height and width of the first edge sealing glue 61 meet the sealing requirements.

[0064] Figure 7 for Figure 1 , showing a cross-sectional view of the module in the second section, Figure 8 for Figure 7 The partial enlarged view of the D area in the middle, it should be noted that, Figure 7 and Figure 8 In the display module, the flip chip film assembly 11 has been bent to the back side of the support layer 4, please combine Figure 7 , Figure 8 and Fig. 9 The second barrier unit 52 is arranged corresponding to the binding side. Since the flexible circuit board in the COF module 1 needs to be bent at the binding side, in order not to interfere with the bending of the COF module 1, the second barrier unit 52 is provided with an avoidance groove 53 during the extension process. The width and number of the avoidance grooves 53 can be set according to the number and width of the COF films. For example, Fig. 9 In the solution shown in , four flip chip modules 1 are provided, and four avoidance grooves 53 are also provided accordingly.

[0065] Since the COF module 1 needs to be bent, the second edge-sealing adhesive 62 cannot be arranged on the supporting layer 4. In this embodiment, the second edge-sealing adhesive 62 is arranged on the side of the display panel 10 close to the polarizer 8 and is located between the binding side and the polarizer 8; the second edge-sealing adhesive 62 covers the edge of the bonding surface 14 of the polarizer 8 and the display panel 10, and covers the flexible circuit board 11 located in the binding area 104. The second blocking unit 52 can still serve the purpose of limiting the width and height of the second edge-sealing adhesive 62.

[0066] In one possible implementation, please refer to Figure 8 The support layer 4 is provided with a support arc surface 41 at the bending position of the flexible circuit board 11 in the COF module 1. The support arc surface 41 supports the flexible circuit board 11 when the flexible circuit board 11 is bent, and is used to support the bending area of ​​the flexible circuit board 11, so as to avoid the bending failure caused by stress concentration due to the bending radius being too small during the bending process of the flexible circuit board 11, thereby improving the reliability of the display module. The support arc surface 41 can be an arc structure, and the curvature of the arc can be adjusted according to the curvature of the bending of the flexible circuit board 11.

[0067] In the above embodiment, the support layer 4, the first barrier unit 51 and the second barrier unit 52 are an integrated structure formed by machining of metal materials. In addition, the support arc surface 41 and the avoidance groove 53 can also be formed by machining. The four corners and edges of the support layer 4 can be chamfered to form rounded corners and arc edges to avoid unsafe situations such as sharp corner scratches during the process.

[0068] The printed circuit board 2 in the display module is arranged on the back side of the support layer 4 , and the chip-on-film assembly 1 is bound to the printed circuit board 2 after being bent.

[0069] The display module also includes a touch panel 12 and a protective cover plate 11. The touch panel 12 is arranged on the side of the polarizer 8 away from the display panel 10, and the protective cover plate 11 is arranged on the side of the touch panel 12 away from the polarizer 8. The protective cover plate 11 is a transparent plate-like structure, which protects the display module and can be a plate-like structure made of a glass plate, a quartz plate or an organic material.

[0070] One side of the touch panel 12 is connected to the polarizer 8 through a first transparent optical adhesive 9 (Optically Clear Adhesive, abbreviated as OCA), and the other side of the touch panel 12 is bonded to the protective cover 11 through a second transparent optical adhesive 7. A touch circuit board 3 is provided at the end of the touch panel 12 corresponding to the binding side. The touch circuit board 3 is a flexible and bendable circuit board, which is bent from the outer side of the flip chip assembly 1 to the back side of the support layer 4.

[0071] Since in the manufacturing process of the display module, the general order is to first provide a support layer 4 and assemble other components of the display module on the support surface of the support layer 4, it is more in line with the existing processing technology to set the barrier unit 5 on the support layer 4 and apply glue on the support layer 4 to seal the edge of the bonding surface 14 of the display panel 10 and the polarizer 8; in addition, the bonding surface 14 of the display panel 10 and the polarizer 8 is close to the support layer 4, and there are no other structural end faces and end face steps. Therefore, applying glue on the support layer 4 is more conducive to saving materials and reducing the difficulty of the process.

[0072] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0073] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0074] In addition, the technical features involved in the different embodiments of the present application described above can be combined with each other as long as they do not conflict with each other.

[0075] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A display module, characterized in that: include: Display panel, A polarizer disposed on the display side of the display panel, A support layer is provided on the non-display side of the display panel, and, a first edge sealing glue and a first barrier unit disposed on a side of the support layer facing the display panel; The first edge-sealing adhesive covers the edge of the bonding surface between the display panel and the polarizer, and the first barrier unit is located on the side of the first edge-sealing adhesive away from the display panel; the end of the first barrier unit away from the supporting layer is aligned with or exceeds the bonding surface between the display panel and the polarizer; the display panel is a flexible display panel, and the display module also includes a touch panel and a protective cover plate, the touch panel is arranged on the side of the polarizer away from the display panel, and the protective cover plate is arranged on the side of the touch panel away from the polarizer.

2. The display module according to claim 1, characterized in that: The display panel includes a display area and a peripheral area located outside the display area on the display side, the peripheral area includes a binding area and a non-binding area, the outer edge of the binding area is a binding side, and the outer edge of the non-binding area is a non-binding side; the first edge sealing glue and the first barrier unit are both extended along the non-binding side.

3. The display module according to claim 2, characterized in that: The polarizer is arranged to avoid the binding area, the display module comprises a second edge-sealing adhesive and a second blocking unit, the second edge-sealing adhesive is arranged on a side of the display panel close to the polarizer and is located between the binding side and the edge of the polarizer; the second edge-sealing adhesive covers the edge of the bonding surface between the polarizer and the display panel; The second blocking unit is arranged on the side of the supporting layer facing the display panel and is located outside the binding side; the end of the second blocking unit away from the supporting layer is aligned with or exceeds the bonding surface of the display panel and the polarizer.

4. The display module according to claim 3, characterized in that: The display module includes a COF assembly, the COF assembly includes a flexible circuit board and a control chip bound to the flexible circuit board, the flexible circuit board is arranged in the binding area of ​​the display panel, and is bent from the binding side to a side of the support layer away from the display panel; The second blocking unit extends along the binding side and has an avoidance groove for avoiding the flexible circuit board; The second edge sealing adhesive is extended along the binding side and covers the flexible circuit board located in the binding area.

5. The display module according to claim 4, characterized in that: The end surface of the support layer corresponding to the bending position of the flexible circuit board is a support arc surface, and the support arc surface is used to support the bending area of ​​the flexible circuit board.

6. The display module according to claim 3, characterized in that: The cross-sectional shape of the first barrier unit in the first section and the cross-sectional shape of the second barrier unit in the second section are trapezoidal, semicircular, triangular or quadrilateral, the first section is parallel to the light emitting direction and perpendicular to the non-binding side, and the second section is parallel to the light emitting direction and perpendicular to the binding side.

7. The display module according to claim 6, characterized in that: The first barrier unit, the second barrier unit and the support layer are an integrated structure machined from metal materials.

8. A display device, characterized in that: A display module comprising any one of claims 1-7.

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