Display module

Abstract

The utility model relates to a display module. The display module comprises a backlight module and a display panel, the backlight module comprises a bottom frame and a light source assembly, the bottom frame comprises a bottom plate and side plates, the bottom plate and the side plates form a containing cavity, and the light source assembly is arranged in the containing cavity; the display panel is arranged in the containing cavity, the display panel comprises a first substrate and a second substrate which are opposite and spaced, a first polaroid is arranged on one side of the first substrate, and a second polaroid is arranged on one side of the second substrate; the surface of the side, away from the bottom plate, of the first polaroid is flush with the surface of the side, away from the bottom plate, of the side plate, and the first polaroid covers the first substrate. The display panel is arranged in the containing cavity, the upper surface of the first polaroid is flush with the upper surface of the side plate, the first polaroid covers the first substrate, the edge of the first substrate is shielded by the first polaroid, and the first polaroid can replace a decoration strip in the related technology, so that the decoration strip can be omitted, and the display module is light and thin.

Description

TECHNICAL FIELD

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

[0002] Light and thin is the future development trend of the display module. The display module includes a display panel and a backlight module, and the backlight module provides a backlight source for the display panel. The display panel includes a substrate and a polarizer, and the backlight module includes a back plate, a light guide plate, and an optical film, etc. The thickness of these materials is restricted by the processing technology, etc., and it is difficult to further reduce, which leads to the difficulty of light and thin of the display module.

[0003] How to realize the light and thin of the display module is one of the technical problems to be solved by the person skilled in the art. UTILITY MODEL CONTENT

[0004] The embodiment of the present application provides a display module to solve the technical problem that the display module is difficult to be light and thin.

[0005] In order to achieve the above purpose, a display module is provided, comprising:

[0006] A backlight module, comprising a bottom frame and a light source assembly, the bottom frame comprising a bottom plate and a side plate arranged at the periphery of the bottom plate, the bottom plate and the side plate forming a containing cavity, and the light source assembly being arranged in the containing cavity;

[0007] A display panel arranged in the containing cavity, the display panel being located on the side of the light source assembly away from the bottom plate, the display panel comprising a first substrate and a second substrate which are opposite and spaced apart, the first substrate being arranged on the side of the second substrate away from the bottom plate, the first substrate being provided with a first polarizer on the side away from the second substrate, and the second substrate being provided with a second polarizer on the side away from the first substrate;

[0008] Wherein, the surface of the first polarizer away from the bottom plate is flush with the surface of the side plate away from the bottom plate, and the first polarizer covers the first substrate.

[0009] Optionally, the edge of the first polarizer exceeds the edge of the first substrate, and the first polarizer is arranged spaced apart from the side plate.

[0010] Optionally, the distance between the first polarizer and the side plate is 0.2mm to 0.7mm.

[0011] Optionally, the light source assembly comprises a reflective sheet, a light guide plate and an optical film which are stacked in sequence, and the optical film is located on the side of the light guide plate away from the bottom plate.

[0012] Wherein, the reflective sheet and the bottom plate are bonded by a first adhesive layer.

[0013] Optionally, the backlight module further comprises a frame, the frame is arranged between the light guide plate and the side plate.

[0014] The side surface of the frame close to the bottom plate is bonded to the reflective sheet, and the side surface of the frame close to the display panel is bonded to the display panel.

[0015] Optionally, the backlight module further comprises a second adhesive layer, the side surface of the second adhesive layer away from the bottom plate is bonded to the second substrate and the second polarizing sheet, and the side surface of the second adhesive layer close to the bottom plate is bonded to the frame and the optical film sheet.

[0016] Optionally, the backlight module further comprises a second adhesive layer, the side surface of the second adhesive layer away from the bottom plate is bonded to the second polarizing sheet, and the side surface of the second adhesive layer close to the bottom plate is bonded to the frame and the optical film sheet, the second polarizing sheet covers the second substrate, the edge of the second polarizing sheet exceeds the edge of the second substrate, and the second polarizing sheet is arranged in a spaced manner with the side plate.

[0017] Optionally, the frame is a metal piece.

[0018] Optionally, the elastic modulus of the second adhesive layer is less than the elastic modulus of the first adhesive layer.

[0019] Optionally, the second adhesive layer comprises a foam layer and bonding layers arranged on both sides of the foam layer.

[0020] In the display module of the embodiment of the present application, the display panel is arranged in the accommodating cavity, the upper surface of the first polarizing sheet is flush with the upper surface of the side plate, and the first polarizing sheet covers the first substrate, the edge of the first substrate is shielded by the first polarizing sheet, the first polarizing sheet can replace the decorative strip in the related art, so that the decorative strip can be omitted, and the thinness of the display module is realized.

[0021] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0023] For a more complete understanding of the present application and the advantages thereof, reference is now made to the following descriptions taken in connection with the accompanying drawings in which:

[0024] Figure 1 is a top view structural schematic diagram of a display module provided in an exemplary embodiment of the present disclosure;

[0025] Figure 2A is Figure 1 is a sectional structural schematic diagram at C-C in

[0026] Figure 2B is Figure 1 is another sectional structural schematic diagram at C-C in

[0027] Figure 3 is Figure 2A is a magnified structural schematic diagram of the second adhesive layer in

[0028] Explanation of reference signs:

[0029] 1 - display module;

[0030] AA - display area; NA - non-display area;

[0031] 10 - backlight module; 11 - bottom frame; 111 - bottom plate; 112 - side plate; 12 - light source assembly; 121 - reflective sheet; 122 - light guide plate; 123 - optical film sheet; 13 - frame body; 14 - first adhesive layer; 15 - second adhesive layer; 151 - foam layer; 152 - adhesive layer; 16 - buffer portion;

[0032] 20 - display panel; 21 - first substrate; 22 - second substrate; 23 - first polarizing sheet; 24 - second polarizing sheet; 201 - sub-pixel;

[0033] d - distance between the first polarizing sheet 23 and the side plate 112. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0035] In order to achieve the above-mentioned purpose, according to a first aspect of the present application, a display module is provided, and has a display panel and a backlight module. Figures 1 to 2AAs shown, a display module 1 is provided, comprising a backlight module 10 and a display panel 20. The backlight module 10 comprises a bottom frame 11 and a light source assembly 12. The bottom frame 11 comprises a bottom plate 111 and a side plate 112 arranged at the periphery of the bottom plate 111. The bottom plate 111 and the side plate 112 form a containing cavity. The light source assembly 12 is arranged in the containing cavity. The display panel 20 is arranged in the containing cavity. The display panel 20 is located on the side of the light source assembly 12 away from the bottom plate 111. The display panel 20 comprises a first substrate 21 and a second substrate 22 which are opposite and spaced apart. The first substrate 21 is arranged on the side of the second substrate 22 away from the bottom plate 111. The side of the first substrate 21 away from the second substrate 22 is provided with a first polarizer 23. The side of the second substrate 22 away from the first substrate 21 is provided with a second polarizer 24. The side surface of the first polarizer 23 away from the bottom plate 111 is flush with the side surface of the side plate 112 away from the bottom plate 111. The first polarizer 23 covers the first substrate 21.

[0036] The display module 1 can be a liquid crystal display module. The display panel 20 and the backlight module 10 are combined into one. The display panel 20 is a non-self-luminous panel, which needs to be provided with a backlight source by the backlight module 10. The backlight source is a white planar light source.

[0037] As shown, Figure 1 The display panel 20 comprises a display area AA and a non-display area NA arranged at the periphery of the display area AA. The display area AA can be provided with a plurality of sub-pixels 201. The sub-pixels 201 can include red sub-pixels, green sub-pixels and blue sub-pixels, so as to realize color display. The non-display area NA can be provided with a driving circuit, such as a gate driving circuit, etc. The driving circuit can provide driving signals for the sub-pixels 201.

[0038] As shown, Figure 2A The display panel 20 can be an LCD panel. The display panel 20 comprises a first substrate 21 and a second substrate 22 which are opposite and spaced apart. A liquid crystal layer (not shown in the figure) is arranged between the first substrate 21 and the second substrate 22. By applying different electric fields to the liquid crystal molecules in the liquid crystal layer and changing the orientation thereof, the transmission or blocking of light is controlled, and then the brightness of the display picture is controlled.

[0039] A color film layer is arranged on one of the first substrate 21 or the second substrate 22. The color film layer can convert white light into colored light, so as to present a color image. Specifically, the color film layer can include red color resistance, green color resistance and blue color resistance. The red color resistance allows red light to pass through while blocking other colors of light, the green color resistance allows green light to pass through while blocking other colors of light, and the blue color resistance allows blue light to pass through while blocking other colors of light. Color resistances of different colors can convert the white light of the backlight source into corresponding colored light, so as to realize full-color display.

[0040] In some embodiments, the first substrate 21 and the second substrate 22 have the same thickness. The thickness of both the first substrate 21 and the second substrate 22 can be less than or equal to 0.125 mm, thereby achieving a thinner and lighter display panel 20.

[0041] In some embodiments, the thicknesses of the first substrate 21 and the second substrate 22 may be different.

[0042] like Figure 2A As shown, the base frame 11 includes a base plate 111 and a side plate 112 disposed around the base plate 111. The side plate 112 and the base plate 111 together form a receiving cavity. The base plate 111 and the side plate 112 can be integrally formed by processes such as stamping and bending.

[0043] In some embodiments, the base frame 11 can be made of stainless steel, iron, aluminum, or other metals or metal alloys. Using metal or metal alloys as the base frame 11 can increase the mechanical strength of the base frame 11, making the light source assembly 12 and the display panel 20 inside the housing cavity of the base frame 11 less susceptible to damage from external impacts.

[0044] It should be noted that the bottom frame 11 can be used as the back plate in the backlight module 10. That is to say, in this application, the back plate and the bottom frame 11 in the backlight module 10 are combined into one, thereby omitting the thickness of one of the film layer structures and further reducing the thickness of the display module 1.

[0045] like Figure 2A As shown, the light source assembly 12 is used to emit light. The surface of the light source assembly 12 facing away from the base plate 111 is the light-emitting surface, and the light emitted from the light source assembly 12 can enter the display panel 20. It should be noted that the light-emitting area of ​​the light source assembly 12 is set at least corresponding to the display area AA of the display panel 20, thereby providing a backlight for the entire display area AA of the display panel 20.

[0046] like Figure 2A As shown, the bottom frame 11 is used to fix the light source assembly 12 and the display panel 20, ensuring the structural stability of the display module 1, and also providing some light shielding and protection for the light source assembly 12 and the display panel 20.

[0047] In some embodiments, the thickness of the base plate 111 is less than or equal to 0.6 mm, but is not limited thereto.

[0048] like Figure 2A As shown, the first substrate 21 is disposed on the side of the second substrate 22 away from the base plate 111. The upper surface of the first substrate 21 is provided with a first polarizer 23, and the lower surface of the second substrate 22 is provided with a second polarizer 24.

[0049] Both the first polarizer 23 and the second polarizer 24 include a polyvinyl alcohol (PVA) film, a cellulose triacetate (TAC) film, a pressure-sensitive adhesive (PSA), a release film, and a protective film. The first polarizer 23 and the second polarizer 24 are used to control the polarization direction of light, allowing light to enter the liquid crystal layer with a specific polarization state. Only light with a polarization direction consistent with that of the polarizer can pass through, thereby achieving light modulation and ensuring that the liquid crystal layer can effectively control the transmission and blocking of light.

[0050] In some embodiments, the thickness of the first polarizer 23 and the second polarizer 24 may be the same. For example, the thickness of both the first polarizer 23 and the second polarizer 24 may be less than or equal to 0.075 mm.

[0051] like Figure 2A As shown, the surface of the first polarizer 23 facing away from the base plate 111 is flush with the surface of the side plate 112 facing away from the base plate 111. This means that the upper surface of the first polarizer 23 is flush with the upper surface of the side plate 112, thus preventing either the first polarizer 23 or the side plate 112 from extending beyond the surface of the other, which would increase the thickness of the display module 1. Simultaneously, the first polarizer 23, the first substrate 21, and the second substrate 22 of the display panel 20 are all located within the receiving cavity. The side plate 112 can protect the first polarizer 23, the first substrate 21, and the second substrate 22 of the display panel 20 from damage caused by external impacts.

[0052] It should be noted that the statement that the surface of the first polarizer 23 facing away from the base plate 111 is flush with the surface of the side plate 112 facing away from the base plate 111 means that, within the allowable range of process error, the upper surface of the first polarizer 23 and the upper surface of the side plate 112 are on the same horizontal plane. For example, if the process error is 0.02 mm, then when the difference between the upper surface of the first polarizer 23 and the upper surface of the side plate 112 is within 0.02 mm, it should still be understood that the upper surface of the first polarizer 23 and the upper surface of the side plate 112 are flush. Process error is affected by various factors, and the specific value of the process error is not limited here.

[0053] The first polarizer 23 covers the first substrate 21, that is, the first polarizer 23 completely blocks the upper surface of the first substrate 21. In other words, the orthographic projection of the first polarizer 23 on the first substrate 21 coincides with the first substrate 21, or the pattern area of ​​the orthographic projection of the first polarizer 23 on the first substrate 21 is larger than the area of ​​the first substrate 21.

[0054] Since the first polarizer 23 has low light transmittance and appears almost black to the naked eye, it can be used to shield the first substrate 21, preventing the edges of the first substrate 21 from being observed and affecting the appearance of the display module 1.

[0055] In the related art, the polarizing sheet does not cover the edge of the first substrate 21, and a decorative strip is usually additionally provided to shield the edge of the first substrate 21. The decorative strip not only increases the thickness and weight of the display module 1, but also increases the assembly process difficulty of the display module 1. In the present application, the area of the first polarizing sheet 23 is increased to cover the first substrate 21, and the low light transmittance of the first polarizing sheet 23 is used to shield the first substrate 21, so that the decorative strip can be cancelled, and the display module 1 can be thinned.

[0056] Optionally, as shown in FIG. 1B, the edge of the first polarizing sheet 23 exceeds the edge of the first substrate 21. That is, the area of the first polarizing sheet 23 is greater than the area of the first substrate 21, and the first polarizing sheet 23 covers the upper surface of the first substrate 21 and extends towards the side plate 112. Figure 2A It should be noted that, in order to avoid interference between the first polarizing sheet 23 and the side plate 112, the first polarizing sheet 23 is arranged to be spaced apart from the side plate 112. The first polarizing sheet 23 and the first substrate 21 are both flat plates, the flat plate has two surfaces with the largest area, the area of the first polarizing sheet 23 is the area of the largest surface of the first polarizing sheet 23, and the area of the first substrate 21 is the area of the largest surface of the first substrate 21. The largest surface of the first polarizing sheet 23 and the largest surface of the first substrate 21 are both parallel to the display surface of the display panel 20.

[0057] Optionally, as shown in FIG. 1B, the distance d between the first polarizing sheet 23 and the side plate 112 is 0.2 mm to 0.7 mm. Since the first polarizing sheet 23 will expand and contract due to temperature changes, in order to ensure that the first polarizing sheet 23 still does not interfere with the side plate 112 after expansion, a certain expansion gap can be reserved between the first polarizing sheet 23 and the side plate 112.

[0058] Figure 2A When the size of the first polarizing sheet 23 is large, the distance d can be set to be large; when the size of the first polarizing sheet 23 is small, the distance d can be set to be small. The specific size of the distance d can be set according to the expansion and contraction degree of the first polarizing sheet 23.

[0059] Since the edge of the first polarizing sheet 23 exceeds the edge of the first substrate 21, the distance d between the first polarizing sheet 23 and the side plate 112 is further reduced, which can prevent the light of the backlight module 10 from leaking out from the edge of the side plate 112, and thus the edge sealing adhesive in the related art can be cancelled. The edge sealing adhesive is usually a black tape, and the edge sealing adhesive is used to wrap the edge of the display panel 20 and the edge of the backlight module 10 to prevent light leakage from the edge of the backlight module 10.

[0060] Optionally, as shown in FIG. 1B, the edge of the first polarizing sheet 23 exceeds the edge of the first substrate 21. That is, the area of the first polarizing sheet 23 is greater than the area of the first substrate 21, and the first polarizing sheet 23 covers the upper surface of the first substrate 21 and extends towards the side plate 112.

[0061] Optionally, as shown in FIG. 1B, the distance d between the first polarizing sheet 23 and the side plate 112 is 0.2 mm to 0.7 mm. Since the first polarizing sheet 23 will expand and contract due to temperature changes, in order to ensure that the first polarizing sheet 23 still does not interfere with the side plate 112 after expansion, a certain expansion gap can be reserved between the first polarizing sheet 23 and the side plate 112. Figure 2A ​As shown, the light source assembly 12 comprises a reflective sheet 121, a light guide plate 122 and an optical film 123 which are stacked in sequence, and the optical film 123 is located on the side of the light guide plate 122 away from the bottom plate 111; wherein the reflective sheet 121 is bonded to the bottom plate 111 by the first adhesive layer 14.

[0062] The backlight module 10 further comprises a lamp strip (not shown in the figure) which is arranged on the side wall of the light guide plate 122. The lamp strip comprises a plurality of lamp beads, which can be LEDs or the like. The light emitting surface of the lamp bead is opposite to the side wall of the light guide plate 122. The light emitted from the lamp bead is incident to the side wall of the light guide plate 122 and is conducted to the entire plane of the light guide plate 122 through the light guide plate 122, thereby forming a plane light source.

[0063] The material of the light guide plate 122 can be a transparent polymer material, such as polymethyl methacrylate (PMMA) or polycarbonate (PC) or the like.

[0064] In some embodiments, the thickness of the light guide plate 122 can be less than or equal to 0.3 millimeters.

[0065] The reflective sheet 121 is arranged on the side of the light guide plate 122 close to the bottom plate 111. The reflective sheet 121 is mainly used to reflect the light emitted from the bottom of the light guide plate 122 back into the light guide plate 122, so that it can be concentrated to project from the front, reduce light loss and increase the light source efficiency of the backlight module 10.

[0066] In some embodiments, the reflective sheet 121 can be a polyethylene terephthalate (PET) film coated with a high-reflectivity metal film (such as an aluminum film or a silver film).

[0067] In some embodiments, the thickness of the reflective sheet 121 can be less than or equal to 0.1 millimeters.

[0068] The optical film 123 is arranged on the side of the light guide plate 122 away from the bottom plate 111. The optical film 123 can comprise a diffusion sheet and a prism sheet which are stacked in sequence. The diffusion sheet is used to diffuse the light emitted from the light guide plate 122, so that the light is uniformly distributed on the light emitting surface, effectively homogenizing the light. The prism sheet is arranged on the side of the diffusion sheet away from the light guide plate 122. The prism sheet corrects the direction of the light by the principle of refraction and reflection of light, concentrates the scattered light to the front, and improves the brightness of the backlight module 10.

[0069] In some embodiments, the thickness of the optical film 123 can be less than or equal to 0.12 millimeters.

[0070] In some embodiments, the reflective sheet 121 is bonded to the base plate 111 via a first adhesive layer 14. The first adhesive layer 14 can be a fixing adhesive. The area of ​​the reflective sheet 121 can be slightly smaller than the area of ​​the base plate 111. The reflective sheet 121 is bonded to the base plate 111, thereby fixing the reflective sheet 121 to the base plate 111. At the same time, since the reflective sheet 121 is directly bonded to the base plate 111, the back plate disposed between the reflective sheet 121 and the base plate 111 in related technologies is omitted, reducing the thickness of the display module 1.

[0071] In some embodiments, the thickness of the first adhesive layer 14 may be less than or equal to 0.1 mm.

[0072] In some embodiments, the thickness of the reflective sheet 121 may be less than or equal to 0.1 mm.

[0073] Optionally, such as Figure 2A As shown, the backlight module 10 also includes a frame 13, which is disposed between the light guide plate 122 and the side plate 112; wherein, the side surface of the frame 13 near the bottom plate 111 is bonded to the reflective sheet 121, and the side surface of the frame 13 near the display panel 20 is bonded to the display panel 20.

[0074] The frame 13 is disposed within the receiving cavity of the bottom frame 11 and is positioned between the side plate 112 and the light guide plate 122. The frame 13 is used to support the display panel 20. The side surface of the frame 13 closest to the side plate 112 can contact the side plate 112, thereby reducing the bezel width of the display module 1.

[0075] The lower surface of the frame 13 can be bonded to the reflective sheet 121 using an adhesive material, thereby fixing the frame 13. The adhesive material can be one of foam adhesive, pressure-sensitive adhesive, or fixative adhesive.

[0076] Optionally, such as Figure 2A As shown, the backlight module 10 also includes a second adhesive layer 15. The side surface of the second adhesive layer 15 facing away from the base plate 111 is bonded to the second substrate 22 and the second polarizer 24. The side surface of the second adhesive layer 15 near the base plate 111 is bonded to the frame 13 and the optical film 123.

[0077] The upper surface of the frame 13 can be bonded to the lower surface of the display panel 20 through the second adhesive layer 15, thereby fixing the display panel 20 to the frame 13.

[0078] The second adhesive layer 15 is a double-sided adhesive. The surface of the second adhesive layer 15 closest to the base plate 111 can be bonded to both the frame 13 and the optical film 123 simultaneously. It should be noted that the second adhesive layer 15 is flexible and can match the height of the frame 13 and the height of the optical film 123, that is, the surface of the second adhesive layer 15 closest to the base plate 111 can be non-planar.

[0079] As shown in Figure 2A , the size of the second polarizer 24 can be smaller than the size of the second substrate 22, that is, the second polarizer 24 is recessed inward relative to the edges of the second substrate 22. After the second polarizer 24 is recessed, the second adhesive layer 15 can be bonded to the second substrate 22. Since the upper surface of the frame 13 is higher than the upper surface of the optical film 123, by recessing the second polarizer 24, the frame 13, the second polarizer 24 and the second adhesive layer 15 can be staggered in the horizontal direction, thereby reducing the overall thickness of the display module 1. The upper surface of the frame 13 refers to the side surface of the frame 13 facing away from the bottom plate 111. The upper surface of the optical film 123 refers to the side surface of the optical film 123 facing away from the bottom plate 111.

[0080] In other embodiments, as shown in Figure 2B , Figure 2B , the difference between the embodiments in Figure 2A is the size of the second polarizer 24. The second polarizer 24 covers the second substrate 22 and the edges of the second polarizer 24 exceed the edges of the second substrate 22. The second polarizer 24 is spaced apart from the side plate 112. That is, the area of the second polarizer 24 can be the same as the area of the first polarizer 23. The second polarizer 24 is spaced apart from the side plate 112, thereby reserving a certain expansion gap between the second polarizer 24 and the side plate 112. By making the second polarizer 24 exceed the edges of the second substrate 22, the edge light leakage of the backlight module 10 can be further reduced.

[0081] Since the second polarizer 24 covers the surface of the second substrate 22, at this time, compared with the embodiments in Figure 2A , Figure 2B , the side surface of the second adhesive layer 15 facing away from the bottom plate 111 is bonded to the second polarizer 24, instead of being bonded to the second substrate 22.

[0082] Optionally, the frame 13 is a metal piece. By setting the frame 13 to be a metal material, the mechanical strength of the frame 13 can be increased, and the mechanical reliability of the display module 1 can be improved.

[0083] In some embodiments, the material of the frame 13 can be copper, aluminum, stainless steel, etc.

[0084] Optionally, the elastic modulus of the second adhesive layer 15 is less than the elastic modulus of the first adhesive layer 14. The elastic modulus refers to the ratio of stress to strain. The elastic modulus reflects the rigidity of the material. The greater the elastic modulus, the more difficult it is for the material to elastically deform under stress, that is, under the same stress, the smaller the strain generated; the smaller the elastic modulus, the greater the strain generated under the same stress, and the easier it is for the material to elastically deform. By setting the elastic modulus of the second adhesive layer 15 to be less than the elastic modulus of the first adhesive layer 14, the second adhesive layer 15 can be easily deformed under stress, thereby playing a buffering role, preventing the frame 13 from pressing the second substrate 22 and causing the second substrate 22 to break when the display module 1 is impacted by external force.

[0085] As shown in FIG. 1, the frame 13 and the second substrate 22 are separated by the second polarizer 24 and the second adhesive layer 15, further reducing the risk of the frame 13 pressing the second substrate 22 and causing the second substrate 22 to break. Figure 2B

[0086] Optionally, as shown in FIG. 1, the second adhesive layer 15 includes a foam layer 151 and an adhesive layer 152 disposed on both sides of the foam layer 151. Figure 3

[0087] The foam layer 151 is usually made of polyurethane, EVA (ethylene-vinyl acetate copolymer), TPU (thermoplastic polyurethane elastomer rubber), etc. through a foaming process. The porous structure inside the foam layer 151 enables it to effectively absorb and disperse impact force. When subjected to external pressure, the foam can buffer the external force by deforming itself, thereby protecting the second substrate 22 from damage caused by impact and vibration.

[0088] The adhesive layer 152 is a material with adhesion. The adhesive layer 152 can be pressure-sensitive adhesive, optical adhesive, etc., but is not limited thereto.

[0089] In some embodiments, the thickness of the second adhesive layer 15 can be less than or equal to 0.05 millimeters.

[0090] It should be noted that the second adhesive layer 15 is bonded to the non-display area NA of the display panel 20, thereby avoiding the second adhesive layer 15 from blocking the light incident on the display area AA.

[0091] In some embodiments, as shown in FIG. 1 and FIG. 2, the display panel 20 further includes a buffer portion 16, which is disposed between the sidewall of the display panel 20 and the side plate 112, and the buffer portion 16 corresponds to the first substrate 21 and / or the second substrate 22. Figure 2A Figure 2B

[0092] ​​​​The buffer portion 16 being provided corresponding to the first substrate 21 and / or the second substrate 22 means that the buffer portion 16 may only cover a portion of the sidewall of the first substrate 21; or, the buffer portion 16 may only cover a portion of the sidewall of the second substrate 22; or, the buffer portion 16 may simultaneously cover a portion of the sidewall of the first substrate 21 and a portion of the sidewall of the second substrate 22. It should be noted that, to avoid interference between the buffer portion 16 and the first polarizer 23 or the second polarizer 24, the surface of the buffer portion 16 facing away from the base plate is spaced apart from the first polarizer 23, and the surface of the buffer portion 16 near the base plate is spaced apart from the second polarizer 24.

[0093] The material of the buffer portion 16 may include a cushioning material, such as foam. By providing the buffer portion 16, the sidewalls of the first substrate 21 and / or the second substrate 22 can be protected. When subjected to external pressure, the buffer portion 16 can buffer the external force through its own deformation, thereby protecting the first substrate 21 and the second substrate 22 from damage caused by collision and vibration.

[0094] In some embodiments, such as Figure 2A As shown, the buffer portion 16 can be bonded to the side plate 112. At this time, the buffer portion 16 can protect the first substrate 21 and the second substrate 22 from damage caused by collisions and vibrations; on the other hand, it can also shield the edge of the backlight module 10 to prevent light from leaking out from the gap between the side plate 112 and the first polarizer 23, thereby further reducing edge light leakage of the display module 1.

[0095] In some embodiments, such as Figure 2B As shown, the buffer portion 16 can be adhered to the side wall of the display panel 20 to protect the first substrate 21 and the second substrate 22 from damage caused by impact and vibration.

[0096] The display module 1 of this application has an overall thickness of less than or equal to 1.7 mm, which is significantly reduced compared to the 4.8 mm display module 1 in related technologies, thus achieving a thinner and lighter display module 1.

[0097] In this embodiment, the display module 1 can be any product or component with display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.

[0098] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0099] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0100] The embodiments, implementation manners and related technical features of the present application can be combined or replaced with each other without conflict.

[0101] The above are only the preferred embodiments of the present application, and do not limit the present application in any form. Any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution content of the present application and in accordance with the technical essence of the present application still belongs to the scope of the technical solution of the present application.

Claims

1. A display module, characterized in that, include: A backlight module includes a bottom frame and a light source assembly. The bottom frame includes a bottom plate and a side plate disposed around the bottom plate. The bottom plate and the side plate form a receiving cavity, and the light source assembly is disposed within the receiving cavity. A display panel is disposed within the receiving cavity. The display panel is located on the side of the light source assembly away from the base plate. The display panel includes a first substrate and a second substrate that are opposite to and spaced apart. The first substrate is disposed on the side of the second substrate away from the base plate. A first polarizer is provided on the side of the first substrate away from the second substrate, and a second polarizer is provided on the side of the second substrate away from the first substrate. Wherein, the surface of the first polarizer facing away from the base plate is flush with the surface of the side plate facing away from the base plate, and the first polarizer covers the first substrate.

2. The display module according to claim 1, characterized in that, The edge of the first polarizer extends beyond the edge of the first substrate, and the first polarizer is spaced apart from the side plate.

3. The display module according to claim 2, characterized in that, The distance between the first polarizer and the side plate is 0.2 mm to 0.7 mm.

4. The display module according to claim 1, characterized in that, The light source assembly includes a reflective sheet, a light guide plate, and an optical film stacked in sequence, with the optical film located on the side of the light guide plate opposite to the base plate; The reflective sheet is bonded to the base plate by a first adhesive layer.

5. The display module according to claim 4, characterized in that, The backlight module also includes a frame, which is disposed between the light guide plate and the side plate; The side surface of the frame closest to the base plate is bonded to the reflective sheet, and the side surface of the frame closest to the display panel is bonded to the display panel.

6. The display module according to claim 5, characterized in that, The backlight module further includes a second adhesive layer, the side of the second adhesive layer facing away from the base plate being bonded to the second substrate and the second polarizer, and the side of the second adhesive layer close to the base plate being bonded to the frame and the optical film.

7. The display module according to claim 5, characterized in that, The backlight module further includes a second adhesive layer. The side surface of the second adhesive layer facing away from the base plate is bonded to the second polarizer. The side surface of the second adhesive layer close to the base plate is bonded to the frame and the optical film. The second polarizer covers the second substrate and the edge of the second polarizer extends beyond the edge of the second substrate. The second polarizer is spaced apart from the side plate.

8. The display module according to claim 6, characterized in that, The frame is made of metal.

9. The display module according to claim 8, characterized in that, The elastic modulus of the second adhesive layer is less than that of the first adhesive layer.

10. The display module according to any one of claims 6 to 9, characterized in that, The second adhesive layer includes a foam layer and an adhesive layer disposed on both sides of the foam layer.

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