Display module and display terminal

Abstract

The application relates to a display module and a display terminal. The display module comprises a backlight module and a display panel, the backlight module comprises a back plate, a light source assembly and a frame body, the back plate comprises a bottom plate and a side plate, the frame body comprises a first subpart and a second subpart connected, the side wall of the display panel is located on one side of the side wall of the second subpart close to the light source assembly; wherein the first subpart comprises a bearing part and a connecting part, the second subpart comprises a main body part and a convex part, the main body part covers the side wall of part of the connecting part, the convex part protrudes from the surface of the bearing part, and the side wall of one side of the convex part close to the bearing part is projected on the display panel. In the display module of the application, the side wall of the display panel is arranged on one side of the side wall of the second subpart close to the light source assembly, and the side wall of one side of the convex part of the frame body close to the bearing part is arranged in the display panel, so that the gap between the frame body and the display panel is visually shielded by the display panel, and the effect of no gap in the front view is achieved.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display module and a display terminal. Background Technology

[0002] In today's display technology field, display modules are steadily advancing towards narrow bezels and even borderless designs. Taking LCD modules as an example, they mainly consist of two parts: the display panel and the backlight module. However, due to the technical challenge of having a bonding area on one side of the display panel, achieving truly narrow bezels on all four sides remains difficult at present. Currently, the 3BL (3-Border Less) structure has become the mainstream choice for products.

[0003] In the 3BL structure system, the display panel is fixed to the frame of the backlight module by tape. A gap is formed between the edge of the display panel and the frame, which will affect the visual appearance of the display module.

[0004] Therefore, it is urgent to solve the above-mentioned technical problems. Summary of the Invention

[0005] This application provides a display module and a display terminal to improve the technical problem of gaps between the edge of the display panel and the frame, which affect the visual appearance of the display module.

[0006] To achieve the above objectives, in a first aspect, this application provides a display module, comprising:

[0007] A backlight module includes a back plate, a light source assembly, and a frame. The back plate includes a bottom plate and a side plate disposed around the periphery of the bottom plate. The bottom plate and the side plate form a receiving cavity. The light source assembly is disposed within the receiving cavity. The frame is disposed at the edge of the back plate. The frame includes a first sub-part and a second sub-part connected together.

[0008] The display panel is disposed on one side of the light-emitting surface of the backlight module;

[0009] The first sub-part includes a support portion disposed between the side plate and the display panel and a connecting portion disposed on the side of the side plate away from the light source assembly. The second sub-part includes a connecting main body portion and a protrusion portion. The main body portion covers a portion of the side wall of the connecting portion away from the side plate. The protrusion portion protrudes from the surface of the support portion away from the base plate. The side wall of the display panel is located on the side wall of the second sub-part closer to the light source assembly. The orthographic projection of the side wall of the protrusion portion closer to the support portion on the display panel is located within the display panel.

[0010] Optionally, the backlight module includes an adhesive portion, wherein the adhesive portion is bonded to the display panel on one side surface near the display panel, and the adhesive portion is bonded to the frame on one side surface near the frame.

[0011] The elastic modulus of the protrusion is less than that of the bearing portion.

[0012] Optionally, the width of the end of the protrusion closest to the display panel is smaller than the width of the end of the protrusion furthest from the display panel.

[0013] Optionally, the second sub-part further includes an extension connected to the protrusion, the extension covering a portion of the surface of the support portion near the display panel; the adhesive portion is bonded to the extension.

[0014] Optionally, a boss is provided on the side surface of the bearing portion away from the base plate, and the adhesive portion is disposed between the boss and the boss. The side surface of the boss away from the base plate protrudes from the side surface of the extension portion away from the base plate.

[0015] Optionally, a boss is provided on the side surface of the bearing portion away from the base plate, and the adhesive portion is disposed between the boss and the boss, and the adhesive portion is bonded to the bearing portion.

[0016] Optionally, in the thickness direction of the display module, the height of the protrusion is greater than or equal to the thickness of the adhesive portion.

[0017] Optionally, 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 backlight module. The display panel also includes a first polarizer disposed on the side of the first substrate away from the second substrate. The first polarizer at least covers the surface of the first substrate away from the second substrate.

[0018] Optionally, the sidewalls of the first substrate and the second substrate are provided with a light-shielding adhesive, and the first polarizer covers the edge of the light-shielding adhesive near the side of the first substrate.

[0019] Optionally, 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 backlight module. The display panel also includes a first polarizer disposed on the side of the first substrate away from the second substrate. The first polarizer at least covers the gap between the protrusion and the first substrate, and the edge of the first polarizer is located on the side wall of the second sub-part near the light source assembly.

[0020] Secondly, this application provides a display terminal, which includes a rear shell and the aforementioned display module, wherein the rear shell is connected to the end of the main body and the connecting portion that is away from the display panel.

[0021] In the display module of this application embodiment, by setting the side wall of the display panel on the side wall of the second sub-part near the light source assembly, and setting the side wall of the frame protrusion near the support part inside the display panel, the gap between the frame and the display panel is visually blocked by the display panel, thereby achieving the effect of no gap when viewed directly.

[0022] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0025] Figure 1 This is a top view of a display module provided in an exemplary embodiment of this disclosure;

[0026] Figure 2A yes Figure 1 A schematic diagram of a cross-sectional structure at point CC;

[0027] Figure 2B yes Figure 1 Another cross-sectional structural diagram at point CC;

[0028] Figure 3 yes Figure 2A A magnified structural diagram of the frame in the image;

[0029] Figure 4 yes Figure 2A Another enlarged structural diagram of the frame in the diagram;

[0030] Figure 5 yes Figure 2A Schematic diagrams of various enlarged structures of the convex part in the middle;

[0031] Figure 6 This is a schematic diagram of the assembly process of the display panel and the backlight module;

[0032] Figure 7 This is a cross-sectional structural diagram of a display terminal provided in an exemplary embodiment of this disclosure.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Display module;

[0035] 10-Backlight module; 11-Back plate; 111-Bottom plate; 112-Side plate; 12-Light source assembly; 121-Reflector; 122-Light guide plate; 123-Optical film; 124-Side reflector; 13-Frame; 131-First sub-part; 1311-Supporting part; 1311a-Boss; 1312-Connecting part; 132-Second sub-part; 1321-Main body; 1322-Protrusion; 1323-Extension; 14-Adhesive part;

[0036] 20 - Display panel; 21 - Liquid crystal cell; 211 - First substrate; 212 - Second substrate; 22 - First polarizer; 23 - Second polarizer; 24 - Light-shielding adhesive; AA - Display area; NA - Non-display area; 201 - Subpixel;

[0037] 2-Rear shell;

[0038] 3-Display terminal;

[0039] w1 - Width of the end of the protrusion 1322 near the display panel 20; w2 - Width of the end of the protrusion 1322 away from the display panel 20; L - Distance between the sidewall of the display panel 20 and the sidewall of the second sub-part 132. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0041] To achieve the above objectives, firstly, such as Figures 1 to 3As shown, this application provides a display module 1, including a backlight module 10 and a display panel 20. The backlight module 10 includes a back plate 11, a light source assembly 12, and a frame 13. The back plate 11 includes a bottom plate 111 and a side plate 112 disposed around the bottom plate 111. The bottom plate 111 and the side plate 112 form a receiving cavity. The light source assembly 12 is disposed in the receiving cavity. The frame 13 is disposed on the edge of the back plate 11 and includes a first sub-part 131 and a second sub-part 132 connected together. The display panel 20 is disposed on the light-emitting surface side of the backlight module 10, and the sidewall of the display panel 20 is located near the sidewall of the second sub-part 132. One side of component 12; wherein, the first sub-part 131 includes a support part 1311 disposed between the side plate 112 and the display panel 20 and a connecting part 1312 disposed on the side of the side plate 112 away from the light source component 12, and the second sub-part 132 includes a connected main body part 1321 and a protrusion 1322. The main body part 1321 covers the side wall of the connecting part 1312 away from the side plate 112. The protrusion 1322 protrudes from the surface of the support part 1311 away from the bottom plate 111. The orthographic projection of the side wall of the protrusion 1322 near the support part 1311 on the display panel 20 is located inside the display panel 20.

[0042] Display module 1 can be a liquid crystal display module. Display panel 20 and backlight module 10 are integrated into one unit. Display panel 20 is a non-self-emissive panel, requiring backlight module 10 to provide a backlight source for display panel 20. The backlight source is a white planar light source.

[0043] like Figure 1 As shown, the display panel 20 includes a display area AA and a non-display area NA disposed around the display area AA. The display area AA may be provided with multiple sub-pixels 201, which may include red sub-pixels, green sub-pixels, and blue sub-pixels, thereby realizing color display. The non-display area NA may be provided with a driving circuit, such as a gate driving circuit, which can provide driving signals to the sub-pixels 201.

[0044] like Figure 2A As shown, the back plate 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.

[0045] In some embodiments, the material of the backplate 11 can be stainless steel, iron, aluminum, or other metals or metal alloys. Using metal or metal alloys as the backplate 11 can increase the mechanical strength of the backplate 11, making the light source assembly 12 inside the housing cavity of the backplate 11 less susceptible to damage from external impacts.

[0046] like Figure 2AAs 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.

[0047] like Figure 2A As shown, the back plate 11 is used to accommodate the light source assembly 12, and also provides some light shielding and protection for the light source assembly 12.

[0048] In some embodiments, such as Figure 2A As shown, the light source assembly 12 includes a reflective sheet 121, a light guide plate 122 and an optical film 123 stacked in sequence, with the optical film 123 located on the side of the light guide plate 122 away from the base plate 111.

[0049] The backlight module 10 also includes a light strip (not shown in the figure), which is disposed on the side wall near the light guide plate 122. The light strip includes multiple LEDs, which can be LEDs or the like. The light-emitting surface of the LEDs is opposite to the side wall of the light guide plate 122. The light emitted from the LEDs is incident on the side wall of the light guide plate 122 and conducted through the light guide plate 122 to the entire plane of the light guide plate 122, thereby forming a planar light source.

[0050] The light guide plate 122 can be made of a transparent polymer material, such as polymethyl methacrylate (PMMA) or polycarbonate (PC).

[0051] The reflector 121 is disposed on the side of the light guide plate 122 near the base plate 111. The reflector 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 and projected from the front, reducing light loss and increasing the light source efficiency of the backlight module 10.

[0052] In some embodiments, the reflective sheet 121 may be a polyethylene terephthalate (PET) film coated with a high-reflectivity metal film (such as an aluminum film or a silver film).

[0053] In some embodiments, such as Figure 2A As shown, a side reflector 124 can be provided on the side wall of the light guide plate 122. The side reflector 124 can reflect light from the side of the light guide plate 122 into the light guide plate 122, thereby improving the light utilization efficiency.

[0054] like Figure 2AAs shown, the optical film 123 is disposed on the side of the light guide plate 122 facing away from the base plate 111. The optical film 123 may include diffuser sheets, prism sheets, etc., stacked sequentially. The diffuser sheet is used to diffuse the light emitted from the light guide plate 122, so that the light is evenly distributed on the light-emitting surface, effectively homogenizing the light. The prism sheet is disposed on the side of the diffuser sheet away from the light guide plate 122. The prism sheet corrects the direction of the light through the principle of light refraction and reflection, concentrating the scattered light towards the front, thereby improving the brightness of the backlight module 10.

[0055] like Figure 2A As shown, the frame 13 is located at the edge of the back panel 11, and the frame 13 can be detachably connected to the back panel 11. For example, the frame 13 can be snap-fitted to the back panel 11. A snap-fit ​​connection means that hooks and latches are respectively provided on the frame 13 and the back panel 11, and the snap-fit ​​connection is achieved by the engagement of the hooks and latches. The connection method between the frame 13 and the back panel 11 is not limited to this.

[0056] like Figure 2A As shown, the frame 13 includes a first sub-part 131 and a second sub-part 132 connected together. The structure of the first sub-part 131 and the second sub-part 132 can be configured as needed. The first sub-part 131 can be used to support the display panel 20, and the second sub-part 132 can fill the gap between the display panel 20 and the support part 1311. The materials of the first sub-part 131 and the second sub-part 132 can be the same or different.

[0057] In some embodiments, the first sub-part 131 and the second sub-part 132 are made of different materials. The first sub-part 131 and the second sub-part 132 can be integrally molded. For example, the first sub-part 131 and the second sub-part 132 can be injection molded into one piece using a two-color injection molding process. A two-color injection molding process is a process in which two different materials are injected into the same mold, thereby resulting in a part formed from two materials.

[0058] In some embodiments, the elastic modulus of the second sub-part 132 is less than that of the first sub-part 131. For example, the first sub-part 131 is a rigid material, and the second sub-part 132 is a flexible material. The material of the first sub-part 131 can be thermoplastic polyurethane (TPU), etc. The lower elastic modulus of the first sub-part 131 makes it easier to deform and fill the gap between the display panel 20 and the support portion 1311. The material of the second sub-part 132 can be one or a combination of polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), glass fiber reinforced polycarbonate (GF), etc.

[0059] In some embodiments, the frame 13 is made of plastic and can be manufactured by injection molding.

[0060] Please combine Figure 2A and Figure 3 The support portion 1311 is disposed between the display panel 20 and the backlight module 10, and the support portion 1311 is used to support the display panel 20. The connecting portion 1312 is connected to the support portion 1311, and the connecting portion 1312 is disposed on the side of the side plate 112 away from the light source assembly 12, and the connecting portion 1312 is used to detachably connect to the side plate 112.

[0061] The main body 1321 covers the outer wall of the connecting portion 1312, and the main body 1321 is in direct contact with the connecting portion 1312. The protrusion 1322 is located at one end of the main body 1321 near the display panel 20, and the protrusion 1322 is in direct contact with the main body 1321.

[0062] It should be noted that in the first sub-part 131, the protrusion 1322 and the main body 1321 are integrally formed. In the second sub-part 132, the supporting part 1311 and the connecting part 1312 are integrally formed.

[0063] In some embodiments, the first sub-part 131 and the second sub-part 132 can be integrally formed.

[0064] The sidewall of the display panel 20 is located on the sidewall of the second sub-part 132 closest to the light source assembly 12. In other words, the sidewall of the display panel 20 does not extend beyond the sidewall of the second sub-part 132 away from the light source assembly 12. With the above arrangement, the risk of the sidewall of the display panel 20 being impacted by external forces can be reduced.

[0065] In some embodiments, the distance L between the sidewall of the display panel 20 and the sidewall of the second sub-part 132 can be from 0 mm to 0.2 mm. For example, the distance L between the sidewall of the display panel 20 and the sidewall of the second sub-part 132 can be 0 mm, 0.05 mm, 0.1 mm, 0.15 mm, 0.2 mm, etc. The distance between the sidewall of the display panel 20 and the sidewall of the frame 13 is... Figure 2A and Figure 2B The horizontal spacing in the middle.

[0066] Please combine Figure 2A and Figure 3 The protrusion 1322 protrudes from the side surface of the support portion 1311 that is away from the base plate 111. In other words, the protrusion 1322 is closer to the display panel 20 than the support portion 1311, that is, the minimum distance between the protrusion 1322 and the display panel 20 is less than the minimum distance between the support portion 1311 and the display panel 20.

[0067] The orthographic projection of the sidewall of the protrusion 1322 near the support portion 1311 onto the display panel 20 lies within the display panel 20. This means that, in the forward viewing direction, the inner sidewall of the protrusion 1322 is obscured by the display panel 20. When the user observes the display module 1 in the forward viewing direction, the inner sidewall of the protrusion 1322 cannot be seen, thus visually eliminating the gap between the frame 13 and the display panel 20 and improving the external visual effect of the display module 1. The forward viewing direction refers to... Figure 2A The direction of observation is perpendicular to the display surface, that is, when observing from above the display module 1 directly facing the display surface.

[0068] Optionally, such as Figure 2A As shown, the backlight module 10 includes an adhesive portion 14, the side surface of the adhesive portion 14 near the display panel 20 is bonded to the display panel 20, and the side surface of the adhesive portion 14 near the frame 13 is bonded to the frame 13; wherein, the elastic modulus of the protrusion 1322 is less than the elastic modulus of the bearing portion 1311.

[0069] The adhesive part 14 is made of an adhesive material and is used to fix the display panel 20 to the backlight module 10. The upper surface of the adhesive part 14 is bonded to the display panel 20, and the lower surface of the adhesive part 14 is bonded to the frame 13.

[0070] In some embodiments, the material of the adhesive portion 14 may be foam adhesive, pressure-sensitive adhesive, optical adhesive, etc., but is not limited thereto.

[0071] The elastic modulus is the ratio of stress to strain. It reflects the rigidity of a material. The larger the elastic modulus, the more difficult it is for the material to undergo elastic deformation under stress; that is, the smaller the strain produced under the same stress. Conversely, the smaller the elastic modulus, the larger the strain produced under the same stress, and the easier it is for the material to undergo elastic deformation.

[0072] The elastic modulus of the protrusion 1322 is less than that of the support portion 1311. This means that under the same stress, the support portion 1311 is less prone to deformation than the protrusion 1322, thus ensuring the support portion 1311 provides adequate support for the display panel 20. Conversely, the protrusion 1322 is more easily deformed than the support portion 1311. When the display panel 20 is assembled with the backlight module 10, the protrusion 1322 easily deforms upon contact with the display panel 20, preventing it from compressing the display panel 20 and causing damage.

[0073] In some embodiments, the elastic modulus of the adhesive portion 14 is less than that of the protrusion 1322. This means that under the same stress, the adhesive portion 14 deforms more easily than the protrusion 1322. When the display panel 20 is assembled with the backlight module 10, the adhesive portion 14 deforms easily and does not hinder the display panel 20 from moving closer to the backlight module 10, thereby reducing the gap between the display panel 20 and the backlight module 10 in the assembly direction. The assembly direction of the display panel 20 and the backlight module 10 is the thickness direction of the display module 1, i.e., the... Figure 2A The vertical direction in the middle.

[0074] Please see Figure 6 , Figure 6 A schematic diagram of the assembly process of the display panel 20 and the backlight module 10 is shown. During assembly, after aligning the display panel 20 and the backlight module 10, the display panel 20 is brought close to the backlight module 10 in a vertical direction. A certain pressure is applied to the display panel 20, causing the adhesive portion 14 to take effect. The adhesive portion 14 deforms under pressure, and the protrusion 1322 also deforms under pressure. When the pressure is removed, the protrusion 1322 springs back to its normal structural state. The direction of pressure is... Figure 6 The arrow in the diagram indicates downward pressure applied along the surface of the display panel 20. The normal structural state of the adhesive portion 14 means that it is neither compressed nor stretched. At this time, when viewed from the side of the display module 1, the protrusion 1322 blocks the gap between the display panel 20 and the support portion 1311, thereby achieving a gapless visual effect when viewed from the side of the display module 1.

[0075] Optionally, such as Figure 3 As shown, the width w1 of the protrusion 1322 near the display panel 20 is smaller than the width w2 of the protrusion 1322 away from the display panel 20. This means that the upper end of the protrusion 1322 is narrower, and the lower end is wider. Here, width refers to the dimension perpendicular to the thickness of the side plate 112, i.e. Figure 3 The horizontal dimension.

[0076] Please see Figure 6 By setting the width of the upper end of the protrusion 1322 to be smaller than the width of the lower end of the protrusion 1322, the upper end of the protrusion 1322 is more easily deformed than the lower end of the protrusion 1322. When the display panel 20 is close to the protrusion 1322 during assembly, the protrusion 1322 is more easily deformed, thereby reducing the resistance experienced by the display panel 20 and reducing the risk of damage to the display panel 20 due to stress.

[0077] In some embodiments, such as Figure 5 As shown, Figure 5 It shows Figure 2AVarious enlarged structural schematic diagrams of the protrusion 1322 are shown. As shown in (a), the cross-sectional shape of the protrusion 1322 can be trapezoidal. As shown in (b), the cross-sectional shape of the protrusion 1322 can be triangular. As shown in (c), the cross-sectional shape of the protrusion 1322 can be a triangle with a rounded upper end. As shown in (d), the cross-sectional shape of the protrusion 1322 can be a trapezoid with a rough surface on the right side. The cross-section of the protrusion 1322 can also be other shapes, which are not limited in this application.

[0078] Optionally, Figure 4 for Figure 2A Another enlarged structural diagram of frame 13 in the diagram. Figure 4 The embodiments and Figure 3 The difference in the embodiment lies in the extension 1323. See also... Figure 2A and Figure 4 The second sub-part 132 also includes an extension 1323 connected to the protrusion 1322, the extension 1323 covering a portion of the surface of the support part 1311 near the display panel 20; the adhesive part 14 is bonded to the extension 1323.

[0079] By providing the extension 1323, the contact area between the first sub-part 131 and the second sub-part 132 can be increased, reducing the risk of separation between them. Furthermore, the thickness of the flexible material between the display panel 20 and the support part 1311 can be increased, reducing the risk of damage to the display panel 20 due to stress during assembly. It should be noted that since the elastic modulus of the adhesive part 14 and the extension 1323 is smaller than that of the support part 1311, the adhesive part 14 and the extension 1323 can be considered flexible materials, while the support part 1311 can be considered a rigid material.

[0080] Optionally, please refer to Figure 2A and Figure 4 A boss 1311a is provided on the side surface of the bearing part 1311 away from the bottom plate 111. An adhesive part 14 is provided between the boss 1322 and the boss 1311a. The side surface of the boss 1311a away from the bottom plate 111 protrudes from the side surface of the extension part 1323 away from the bottom plate 111.

[0081] The adhesive portion 14 is disposed between the protrusion 1322 and the boss 1311a. The boss 1311a can limit the adhesive portion 14 and prevent it from entering the light-emitting surface of the backlight module 10. The upper surface of the boss 1311a protrudes beyond the upper surface of the extension 1323. This means that even after the extension 1323 is provided, the boss 1311a can still limit the adhesive portion 14.

[0082] Optionally, please refer to Figure 2A and Figure 3A boss 1311a is provided on the side surface of the bearing part 1311 away from the bottom plate 111. An adhesive part 14 is provided between the boss 1322 and the boss 1311a, and the adhesive part 14 is bonded to the bearing part 1311.

[0083] The adhesive portion 14 is disposed between the protrusion 1322 and the boss 1311a. The boss 1311a can limit the adhesive portion 14 to prevent the adhesive portion 14 from entering the light-emitting surface of the backlight module 10.

[0084] In some embodiments, the height of the protrusion 1322 is greater than or equal to the thickness of the adhesive portion 14 in the thickness direction of the display module 1. Both the height of the protrusion 1322 and the thickness of the adhesive portion 14 are dimensions in the thickness direction of the display module 1. This means that in the thickness direction of the display module 1, the protrusion 1322 overlaps with the display panel 20, i.e., the upper surface of the protrusion 1322 is flush with the lower surface of the display panel 20, or the plane containing the upper surface of the protrusion 1322 is located between the lower and upper surfaces of the display panel 20.

[0085] Optionally, such as Figure 2A As shown, the display panel 20 includes a first substrate 211 and a second substrate 212 that are opposite to and spaced apart. The first substrate 211 is disposed on the side of the second substrate 212 away from the base plate 111. The display panel 20 also includes a first polarizer 22 disposed on the surface of the first substrate 211 facing away from the backlight module 10. The first polarizer 22 at least covers the surface of the first substrate 211 facing away from the second substrate 212.

[0086] A liquid crystal layer (not shown) is disposed between the first substrate 211 and the second substrate 212. By applying different electric fields to the liquid crystal molecules in the liquid crystal layer, their orientation is changed, thereby controlling the transmission or blocking of light, and thus controlling the brightness of the displayed image.

[0087] A color filter layer is disposed on either the first substrate 211 or the second substrate 212. The color filter layer can convert white light into colored light, thereby displaying a color image. Specifically, the color filter layer may include a red color filter, a green color filter, and a blue color filter. The red color filter allows red light to pass through while blocking other colors of light, the green color filter allows green light to pass through while blocking other colors of light, and the blue color filter allows blue light to pass through while blocking other colors of light. Different colored color filters can convert the white light from the backlight into the corresponding colored light, thereby achieving full-color display.

[0088] like Figure 2A As shown, a first polarizer 22 is provided on the upper surface of the first substrate 211, and a second polarizer 23 is provided on the lower surface of the second substrate 212.

[0089] Both the first polarizer 22 and the second polarizer 23 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 22 and the second polarizer 23 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.

[0090] The first polarizer 22 at least covers the surface of the first substrate 211 on the side opposite to the backlight module 10, that is, the first polarizer 22 completely blocks the upper surface of the first substrate 211. In other words, the orthographic projection of the first polarizer 22 on the first substrate 211 coincides with the first substrate 211, or the orthographic projection of the first polarizer 22 on the first substrate 211 extends beyond the first substrate 211.

[0091] Since the first polarizer 22 has low light transmittance and appears almost black to the naked eye, it can be used to shield the first substrate 211, preventing the edges of the first substrate 211 from being observed and affecting the appearance of the display module 1.

[0092] like Figure 2A As shown, the size of the second polarizer 23 can be smaller than the size of the second substrate 212, that is, the second polarizer 23 is recessed relative to the edge of the second substrate 212. After the second polarizer 23 is recessed, the adhesive portion 14 can be bonded to the second substrate 212. By recessing the second polarizer 23, the second polarizer 23 and the adhesive portion 14 can be offset in the horizontal direction, thereby reducing the overall thickness of the display module 1.

[0093] In some embodiments, the second polarizer 23 may cover the second substrate 212. That is, the area of ​​the second polarizer 23 may be the same as the area of ​​the first substrate 211. With the above arrangement, the lower surface of the second substrate 212 can be protected by the second polarizer 23 to prevent damage to the display panel 20 and the backlight module 10 from impact during assembly.

[0094] Optionally, such as Figure 2A As shown, the sidewalls of the first substrate 211 and the second substrate 212 are provided with light-shielding adhesive 24. The first polarizer 22 covers the edge of the light-shielding adhesive 24 near the first substrate 211, that is, the orthographic projection of the sidewall of the first polarizer 22 onto the light-shielding adhesive 24 is located within the light-shielding adhesive 24. In other words, the sidewalls of the first substrate 211 and the second substrate 212 are covered with light-shielding adhesive 24, and the surface of the light-shielding adhesive 24 protrudes outwards. With this arrangement, light leakage from the edges of the display module 1 can be blocked by the light-shielding adhesive 24.

[0095] like Figure 2AAs shown, the distance L between the sidewall of the display panel 20 and the sidewall of the second sub-part 132 refers to the distance between the light-shielding adhesive 24 and the sidewall of the second sub-part 132 on the side away from the light source assembly 12.

[0096] In some embodiments, the light-shielding adhesive 24 is a light-shielding material, such as black curable adhesive.

[0097] In some embodiments, the surface of the light-shielding adhesive 24 is an arc surface, and the center of the arc is located inside the display panel 20.

[0098] Because the sidewalls of the first substrate 211 and the second substrate 212 are provided with light-shielding adhesive 24, which is in the shape of a convex arc, and the highest point of the arc is the vertex, which is also the point on the sidewall of the display panel 20 furthest from the center of the first substrate 211 and the second substrate 212. In the side viewing direction, the area where the vertex is located can block the inner sidewall of the protrusion 1322, further reducing the gap between the inner sidewall of the protrusion 1322 and the display panel 20. At the same time, because the sidewall of the display panel 20 closest to the backlight module 10 is recessed relative to the vertex, the sidewall of the protrusion 1322 can be brought closer to the sidewalls of the first substrate 211 and the second substrate 212, further reducing the gap between the protrusion 1322 and the first substrate 211 and the second substrate 212.

[0099] Optionally, such as Figure 2B As shown, Figure 2B The embodiments and Figure 2A The difference in the embodiment lies in the protrusion 1322 and the first polarizer 22. The first polarizer 22 at least covers the gap between the protrusion 1322 and the first substrate 211, and the edge of the first polarizer 22 is located on the side wall of the second sub-part 132 near the light source assembly 12. With the above arrangement, the first polarizer 22 can block the gap between the protrusion 1322 and the first substrate 211, achieving a gap-free view when viewed directly.

[0100] like Figure 2B As shown, since the first polarizer 22 extends beyond the upper surface of the first substrate 211, the distance L between the sidewall of the display panel 20 and the sidewall of the second sub-part 132 refers to the distance between the edge of the first polarizer 22 and the sidewall of the second sub-part 132.

[0101] In some embodiments, the sidewall of the first polarizer 22 is flush with the sidewall of the second sub-part 132 on the side opposite to the light source assembly 12, i.e., L is 0 mm. In this way, when viewed directly, the first polarizer 22 can completely block the backlight module 10, avoiding the visual difference between the first polarizer 22 and the protrusion 1322.

[0102] In some embodiments, the protrusion 1322 covers at least a portion of the sidewalls of the first substrate 211 and the second substrate 212. That is to say, the protrusion 1322 can extend close to the first polarizer 22. In this case, the protrusion 1322 can replace the light-shielding adhesive 24 for light shielding. Therefore, the protrusion 1322 can replace the light-shielding adhesive 24, simplifying the manufacturing process of the display panel 20.

[0103] In order to increase the light-shielding area of ​​the protrusion 1322, the protrusion 1322 may cover the sidewall of the second substrate 212 and at least part of the sidewall of the first substrate 211.

[0104] In some embodiments, the protrusion 1322 may abut against the first polarizer 22 to further enhance the light blocking effect of the protrusion 1322 on the edge of the backlight module 10.

[0105] Optionally, please refer to Figure 2A , Figure 3 , Figure 4 and Figure 7 The end of the connecting part 1312 away from the bearing part 1311 protrudes from the end of the main body part 1321 away from the protrusion 1322.

[0106] like Figure 7 As shown, the second aspect, as Figure 7 As shown, this application provides a display terminal 3, which includes a rear shell 2 and the aforementioned display module 1.

[0107] like Figure 7 As shown, the display module 1 is assembled with the back cover 2. After assembly, the back cover 2 is aligned with the lower surface of the frame 13, and the outer surface of the back cover 2 is flush with the outer wall of the frame 13. This arrangement avoids increasing the bezel width of the display terminal 3. Here, "aligned" means that the end face of the frame 13 and the end face of the back cover 2 are opposite and close to each other.

[0108] In related technologies, the back cover 2 surrounds the perimeter of the frame 13, which increases the bezel width of the display terminal 3, and the increased width is the thickness of the back cover 2. In this application, however, the back cover 2 can be mated with the lower surface of the frame 13, thus not increasing the bezel width of the display terminal 3.

[0109] like Figure 7 As shown, since the end of the connecting portion 1312 away from the bearing portion 1311 protrudes from the end of the main body portion 1321 away from the protrusion 1322, the main body portion 1321 is recessed relative to the connecting portion 1312. When the frame 13 is mated with the rear shell 2, the rear shell 2 can abut against the main body portion 1321, thereby eliminating the gap between the main body portion 1321 and the frame 13.

[0110] It should be understood that in some embodiments, since the main body 1321 is made of a flexible material and can deform appropriately, the rear shell 2 can abut against the end face of the main body 1321 with almost no gap. However, the connecting part 1312 is made of a rigid material, which is not easily deformed; therefore, the gap between the connecting part 1312 and the rear shell 2 is larger. This means that after assembly, the gap between the main body 1321 and the rear shell 2 is smaller than the gap between the connecting part 1312 and the rear shell 2. Because the main body 1321 is recessed relative to the connecting part 1312, the outer surface of the rear shell 2 can cover the gap between the main body 1321 and the rear shell 2, thereby improving the appearance of the display terminal 3.

[0111] In some embodiments, the back cover 2 and the frame 13 are the same color, that is, there is no color difference between the back cover 2 and the frame 13, thereby making the display terminal 3 more aesthetically pleasing.

[0112] In this embodiment, the display terminal 3 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.

[0113] 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.

[0114] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0115] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0116] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display module, characterized in that, include: A backlight module includes a back plate, a light source assembly, and a frame. The back plate includes a bottom plate and a side plate disposed around the periphery of the bottom plate. The bottom plate and the side plate form a receiving cavity. The light source assembly is disposed within the receiving cavity. The frame is disposed at the edge of the back plate. The frame includes a first sub-part and a second sub-part connected together. The display panel is disposed on one side of the light-emitting surface of the backlight module; The first sub-part includes a support portion disposed between the side plate and the display panel and a connecting portion disposed on the side of the side plate away from the light source assembly. The second sub-part includes a connecting main body portion and a protrusion portion. The main body portion covers a portion of the side wall of the connecting portion away from the side plate. The protrusion portion protrudes from the surface of the support portion away from the base plate. The side wall of the display panel is located on the side wall of the second sub-part closer to the light source assembly. The orthographic projection of the side wall of the protrusion portion near the support portion onto the display panel is located within the display panel. The width of the end of the protrusion portion near the display panel is smaller than the width of the end of the protrusion portion away from the display panel. The elastic modulus of the protrusion portion is smaller than the elastic modulus of the support portion.

2. The display module according to claim 1, characterized in that, The backlight module includes an adhesive part, wherein the adhesive part is bonded to the display panel on one side surface near the display panel, and the adhesive part is bonded to the frame on one side surface near the frame.

3. The display module according to claim 2, characterized in that, The second sub-part also includes an extension connected to the protrusion, the extension covering a portion of the surface of the support portion near the display panel; the adhesive portion is bonded to the extension.

4. The display module according to claim 3, characterized in that, The bearing portion has a boss on the side surface away from the base plate, and the adhesive portion is disposed between the boss and the boss. The side surface of the boss away from the base plate protrudes from the side surface of the extension portion away from the base plate.

5. The display module according to claim 2, characterized in that, A boss is provided on the side surface of the bearing part away from the base plate, and the adhesive part is provided between the boss and the boss, and the adhesive part is bonded to the bearing part.

6. The display module according to any one of claims 2 to 5, characterized in that, In the thickness direction of the display module, the height of the protrusion is greater than or equal to the thickness of the adhesive portion.

7. The display module according to claim 1, characterized in that, 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 backlight module. The display panel also includes a first polarizer disposed on the side of the first substrate away from the second substrate. The first polarizer at least covers the surface of the first substrate away from the second substrate. The sidewalls of the first substrate and the second substrate are provided with light-shielding adhesive. The first polarizer covers the edge of the light-shielding adhesive near the side of the first substrate.

8. The display module according to claim 1, characterized in that, 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 backlight module. The display panel also includes a first polarizer disposed on the side of the first substrate away from the second substrate. The first polarizer at least covers the gap between the protrusion and the first substrate, and the edge of the first polarizer is located on the side wall of the second sub-part near the light source assembly.

9. A display terminal, characterized in that, It includes a back cover and a display module as described in any one of claims 1 to 8, wherein the back cover is connected to the end of the main body and the connecting portion away from the display panel.

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