Display module and display device

Abstract

A display module and display device are disclosed. The display module includes a base plate, a diffuser plate, a side frame, and a circuit board. The diffuser plate is disposed on one side of the base plate. The side frame is disposed between the base plate and the diffuser plate. The side frame includes a first part and a second part connected to each other. The first part is connected to the base plate and the second part is connected to each other, and the second part abuts against the diffuser plate. The first part is perpendicular to the base plate, and the second part has a first surface that is not perpendicular to the diffuser plate. The first part has an opening that extends along the thickness direction of the first part. The circuit board includes a substrate and a device. The substrate is disposed on one side of the first part along its own thickness direction, and the device is located on the side of the substrate closer to the first part, with at least a portion of the device located within the opening.

Description

Technical Field

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

[0002] A video wall is composed of multiple display modules spliced ​​together. With its flexible combination, large display size, high definition, and narrow bezel integration, video walls are widely used in various fields such as security inspection and advertising media. For example, common types of video walls include liquid crystal display (LCD) video walls. Utility Model Content

[0003] On one hand, a display module is provided. The display module includes a base plate, a diffuser plate, a side frame, and a circuit board. The diffuser plate is disposed on one side of the base plate. The side frame is disposed between the base plate and the diffuser plate. The side frame includes a first part and a second part connected to each other. The first part is connected to the base plate, and the second part abuts against the diffuser plate. The first part is perpendicular to the base plate, and the second part has a first surface that is not perpendicular to the diffuser plate. The first part has an opening that extends along the thickness direction of the first part. The circuit board includes a substrate and a device. The substrate is disposed on one side of the first part along its own thickness direction, and the device is located on the side of the substrate closer to the first part, with at least a portion of the device located within the opening.

[0004] In some embodiments, the first portion includes a first connecting portion and a second connecting portion. The first connecting portion is located on one side of the second connecting portion along its own thickness direction. The first connecting portion and the second portion are integrally formed, and the second connecting portion and the base plate are integrally formed. The opening includes a first opening, which is disposed in the first connecting portion, and the substrate is located on the side of the first connecting portion away from the second connecting portion.

[0005] In some embodiments, the first portion includes a first connecting portion and a second connecting portion. The first connecting portion is located on one side of the second connecting portion along its own thickness direction. The first connecting portion and the second portion are integrally formed, and the second connecting portion and the base plate are integrally formed. The opening includes a second opening, which is disposed in the second connecting portion, and the substrate is located on the side of the second connecting portion away from the first connecting portion.

[0006] In some embodiments, the first portion includes a first connecting portion and a second connecting portion. The first connecting portion is located on one side of the second connecting portion along its own thickness direction. The first connecting portion and the second portion are integrally formed, and the second connecting portion and the base plate are integrally formed. The opening includes a first opening, which is disposed in the first connecting portion, and the substrate is located on the side of the first connecting portion away from the second connecting portion. Furthermore, the opening includes a second opening, which is disposed in the second connecting portion, and the substrate is located on the side of the second connecting portion away from the first connecting portion.

[0007] In some embodiments, the first portion includes a first connecting portion and a second connecting portion. The first connecting portion is located on one side of the second connecting portion along its own thickness direction. The first connecting portion and the second portion are integrally formed, and the second connecting portion and the base plate are integrally formed. The opening includes a second opening, which is disposed in the second connecting portion. Along the thickness direction of the base plate, the first connecting portion and the base plate are spaced apart, the substrate is located between the first connecting portion and the base plate, and the distance between the substrate and the second connecting portion is less than the thickness of the first connecting portion.

[0008] In some embodiments, the opening is provided at the first connecting portion and the second connecting portion. The orthographic projection of the opening at the first connecting portion onto the substrate at least partially overlaps the orthographic projection of the opening at the second connecting portion onto the substrate.

[0009] In some embodiments, a portion of the second part near the base plate abuts against the surface of the second connecting portion away from the base plate.

[0010] In some embodiments, the first portion and the second portion are an integral structure. The opening extends through the first portion along its thickness direction, or the opening is a groove formed on the first portion, the opening of which is located on the surface of the first portion facing the substrate.

[0011] In some embodiments, the first part, the second part, and the base plate are an integral structure.

[0012] In some embodiments, the side frame further includes a first reflective sheet. The opening extends through the first portion along its thickness direction, and the first reflective sheet is disposed on the substrate side of the opening away from the circuit board, covering the opening.

[0013] In some embodiments, the first reflector and the first surface of the first portion are located on the same side of the side frame.

[0014] In some embodiments, the distance D1 between the edge of the opening and the side edge of the first portion is ≥1 mm.

[0015] In some embodiments, the first portion has a plurality of the openings. The circuit board includes a plurality of the devices, and at least two of the plurality of openings accommodate different devices among the plurality of the devices.

[0016] In some embodiments, along a first direction, the distance between the edges of two adjacent openings in a plurality of openings is D2, and the size of the opening is L1, where D2 ≥ 3 / 10 × L1. The first direction is the extension direction of the line connecting the centers of two adjacent openings.

[0017] In some embodiments, the total length of the opening is L2 along a direction parallel to the base plate and along a direction parallel to the side frame, and the size of the first part is L3, where L2 ≤ 4 / 7 × L3.

[0018] In some embodiments, the total length of the opening is L4 along a direction perpendicular to the base plate, the size of the first portion is L5, and L2 ≤ 1 / 3 × L5.

[0019] In some embodiments, the total opening area of ​​the aperture is S1, the area of ​​the first portion facing the substrate is S2, and S1≤1 / 2×S2.

[0020] In some embodiments, the side frame further includes a first reinforcing structure. The first reinforcing structure is disposed on one side of the first portion along its own thickness direction, the first reinforcing structure is connected to the first portion, and the first reinforcing structure extends along the thickness direction of the base plate.

[0021] In some embodiments, the first portion has a plurality of openings. At least one of the first reinforcing structures is provided between two adjacent openings of the plurality of openings.

[0022] In some embodiments, the display module further includes a second reinforcing structure. The second reinforcing structure is disposed on the side of the base plate near the diffuser plate, the second reinforcing structure is connected to the base plate, and the extension direction of the second reinforcing structure intersects the thickness direction of the base plate and the thickness direction of the first portion having the opening.

[0023] In some embodiments, along the thickness direction of the first portion, the distance between the orthographic projection of the second reinforcing structure onto the diffuser plate and the orthographic projection of the opening onto the diffuser plate is less than or equal to the size of the opening along the thickness direction of the base plate.

[0024] In some embodiments, the size of the opening is L6 in a direction parallel to the base plate and in a direction parallel to the side frame. The size of the second reinforcing structure is W along the thickness direction of the first portion, where 1 / 2 × L6 ≤ W ≤ L6.

[0025] In some embodiments, the thickness of the second reinforcing structure is greater than the thickness of the base plate.

[0026] In some embodiments, the second portion further has a second surface facing the diffuser plate. The first surface is connected to the second surface, and the second surface is parallel to and connected to the surface of the diffuser plate facing the base plate by sealant 10.

[0027] In some embodiments, the dimensions of the second surface range from 0.5 mm to 0.8 mm along the thickness direction of the first portion.

[0028] In some embodiments, the display module further includes a plurality of LEDs arranged on the side of the base plate near the diffuser plate, with a gap between each adjacent pair of LEDs. The plurality of LEDs includes a first LED and a second LED, the first LED being the one closest to the edge of the base plate, and the second LED being closer to the center of the base plate than the first LED. The distance between any two adjacent second LEDs is equal. The distance between the center of the first LED and the side edge of the diffuser plate (as projected onto the diffuser plate) is D3; the distance between the centers of two adjacent second LEDs is D4; the distance between the end of the side frame (as projected onto the diffuser plate away from its side edge) and the side edge of the diffuser plate is D5; the distance from the light-emitting surface of the LED to the surface of the diffuser plate facing the base plate is H; and the maximum emission angle of the LED is α. Wherein, D3 is positively correlated with D5, H, and α, and D3 is negatively correlated with D4.

[0029] In some embodiments, at least the first surface of the second portion is provided with a reflective coating.

[0030] In some embodiments, the distance D5 between the side frame at the end of the diffuser plate whose orthographic projection is away from the side edge of the diffuser plate and the side edge of the diffuser plate is ≤6mm.

[0031] In some embodiments, the display module further includes a display panel located on the side of the diffuser plate away from the base plate.

[0032] In some embodiments, the display module further includes a first adhesive tape and a second adhesive tape. The first adhesive tape is adhered around and pasted to the sides of the base plate, the side frame, the diffuser plate, and the display panel. The second adhesive tape is adhered around and pasted to the outside of the first adhesive tape, and the second adhesive tape has a notch at at least one of the four corners of the display module. The first adhesive tape is opaque, and the elasticity of the first adhesive tape is greater than that of the second adhesive tape.

[0033] In some embodiments, the display module further includes a third adhesive tape, a portion of which covers the notch, and another portion of which is adhered to a portion of the outer surface of the second adhesive tape. The third adhesive tape is opaque and has greater elasticity than the second adhesive tape.

[0034] In some embodiments, the first tape includes aluminum foil tape, and the second tape or the three tapes include elastic tape.

[0035] In some embodiments, the display module further includes any of the notches extending along any side edge of the display module with a dimension E1 ≥ 15 mm, and any of the second tapes extending along any side edge of the display module with a dimension E2 ≥ 20 mm.

[0036] In some embodiments, the angle between the first surface and the diffuser plate ranges from 70° to 85°, with the opening of the angle facing the center of the base plate.

[0037] On the other hand, a display module is provided. The display module includes a base plate, a diffuser plate, and a side frame. The diffuser plate is disposed on one side of the base plate. The side frame is disposed between the base plate and the diffuser plate. The side frame includes a first portion and a second portion, the first portion being connected to the base plate, and the second portion abutting against the diffuser plate. The first portion is perpendicular to the diffuser plate, and the second portion has a first surface intersecting the diffuser plate. The first portion includes a first connecting portion connected to the second portion and a second connecting portion connected to the base plate, the first connecting portion and the second portion being integrally formed, and the second connecting portion and the base plate being integrally formed. The surface of the second connecting portion away from the base plate abuts against the surface of the second portion near the base plate. A circuit board is located at the end of the first connecting portion away from the second portion, and the circuit board and the first connecting portion are located on the same side of the second connecting portion.

[0038] In some embodiments, the display module further includes a display panel, which includes a display area and a non-display area. There is a gap between the orthographic projection of the side frame on the display panel and the edge of the non-display area near the display area, or the orthographic projection of the side frame on the display panel does not overlap with the display area.

[0039] In another aspect, a display device is provided. The display device includes a motherboard and a display module as described in any of the above embodiments. The motherboard is connected to the display module.

[0040] In another aspect, a display device is provided. The display device includes a motherboard and a plurality of display modules as described in any of the above embodiments. The plurality of display modules are interconnected. The motherboard is connected to the display modules. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0042] Figure 1 This is an external view of a display device according to some embodiments of the present disclosure;

[0043] Figure 2 According to Figure 1 A structural diagram of the splicing screen along the AA' direction in the illustrated embodiment;

[0044] Figure 3 According to Figure 2 A plan view of the display module in the illustrated embodiment;

[0045] Figure 4 According to Figure 3 A cross-sectional view of the display module along the BB' direction in the illustrated embodiment;

[0046] Figure 5 According to Figure 3 Another cross-sectional view of the display module in the illustrated embodiment along the BB' direction;

[0047] Figure 6 According to Figure 3 Another cross-sectional view of the display module in the illustrated embodiment along the BB' direction;

[0048] Figure 7 According to Figure 3 Another cross-sectional view of the display module in the illustrated embodiment along the BB' direction;

[0049] Figure 8 According to Figure 3 Another cross-sectional view of the display module in the illustrated embodiment along the BB' direction;

[0050] Figure 9 According to Figure 4 An enlarged view of the display module at M1 in the illustrated embodiment;

[0051] Figure 10 This is a cross-sectional structural diagram of a display module according to some embodiments of the present disclosure;

[0052] Figure 11A According to Figure 6 An enlarged view of the display module at M2 in the illustrated embodiment;

[0053] Figure 11B According to Figure 6 Another enlarged view of the display module at M2 in the illustrated embodiment;

[0054] Figure 12 According to Figure 8 An enlarged view of the display module at M3 in the illustrated embodiment;

[0055] Figure 13 A plan view of a first portion according to some embodiments of the present disclosure;

[0056] Figure 14 This is another cross-sectional view of the display module according to some embodiments of the present disclosure;

[0057] Figure 15 This is yet another cross-sectional view of the display module according to some embodiments of the present disclosure;

[0058] Figure 16 This is an internal structural diagram of a display module according to some embodiments of the present disclosure;

[0059] Figure 17 According to Figure 4 An enlarged view of the second part at M1 in the illustrated embodiment;

[0060] Figure 18 This is a light source distribution diagram of a display module according to some embodiments of the present disclosure;

[0061] Figure 19 This is another light source distribution diagram of a display module according to some embodiments of the present disclosure;

[0062] Figure 20This is a thickness diagram of the peripheral structure of a display module according to some embodiments of the present disclosure;

[0063] Figure 21 This is a plan view of a display module according to some embodiments of the present disclosure;

[0064] Figure 22 This is a packaging structure diagram of a display module according to some embodiments of the present disclosure;

[0065] Figure 23 This is another packaging structure diagram of the display module according to some embodiments of the present disclosure;

[0066] Figure 24 According to Figure 3 Another cross-sectional view of the display module in the illustrated embodiment along the BB' direction.

[0067] Figure label:

[0068] X - First direction; Y - Second direction; Z - Third direction; 100 - Electronic device; 200 - Display device; 300 - Motherboard; 400 - Display module; 500 - Processor chip; 600 - First circuit board; 1 - Base plate; 2 - Diffuser plate; 21 - Brightness enhancement layer; 22 - Side adhesive; 3 - Side frame; 4 - Circuit board; 5 - Light source; 6 - Display panel; 61 - First polarizer; 62 - Second polarizer; 7 - Second reflector; 8 - Second reinforcing structure; 9 - Tape; 10 - Sealant; 11 - Circuit board protective cover; 3 01-Opening; 3011-First opening; 3012-Second opening; 31-First part; 32-Second part; 33-First reflective sheet; 34-Third part; 35-First reinforcing structure; 321-First surface; 322-Second surface; 311-First connecting part; 312-Second connecting part; 41-Substrate; 42-Device; 43-Foam; 401-Cavity; 410-Display area; 420-Non-display area; 91-First tape; 92-Second tape; 93-Third tape; 921-Notch. Detailed Implementation

[0069] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0070] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0071] Hereinafter, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0072] In describing some embodiments, the terms "coupled" and "connected," and their derivative expressions, may be used. The term "connected" should be interpreted broadly; for example, "connected" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. The term "coupled," for example, indicates that two or more components have direct physical contact or do not have direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0073] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0074] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0075] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0076] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0077] It should be understood that when a layer or element is referred to as being on another layer or board, it can mean that the layer or element is directly on another layer or board, or that there is an intermediate layer between the layer or element and another layer or board.

[0078] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and the area of ​​regions are enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched areas shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the areas of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0079] In embodiments of this disclosure, some figures illustrate an XYZ coordinate system for representing directions. For example, X can represent a first direction, Y can represent a second direction, and Z can represent a third direction.

[0080] This disclosure provides an electronic device 100 that can utilize a display device 200 to achieve a large-size display, thereby enabling the electronic device 100 to meet the required application scenarios.

[0081] For example, the types of electronic devices 100 include, but are not limited to, consumer products, home products, vehicle-mounted products, wearable products, financial terminal products, and communication products. For instance, electronic devices 100 may include, but are not limited to, security detection and command and dispatch equipment, conference and education and training equipment, energy and industrial control equipment, aerospace equipment, broadcasting and entertainment terminals, commercial display and advertising media terminals, and medical and public service terminals.

[0082] For example Figure 1 As shown, the electronic device 100 may include a display device 200, and the electronic device 100 may be a conference all-in-one machine. For example, the display device 200 of the conference all-in-one machine may be embedded in a mechanical or building structure.

[0083] For example, display device 200 may include a video wall.

[0084] like Figure 2 As shown, this embodiment of the disclosure provides a display device 200, which may include a motherboard 300 and a display module 400. The motherboard 300 is connected to the display module 400. For example, the display module 400 may include, but is not limited to, an LCD display module or an organic light-emitting diode (OLED) display module.

[0085] For example, the display device 200 may include multiple display modules 400. The multiple display modules 400 are interconnected. In some examples, the light-emitting surfaces of the multiple display modules 400 may be located on the same plane, realizing a large-size display device 200. In still other examples, the light-emitting surfaces of the multiple display modules 400 may not be located on the same plane, realizing an irregularly shaped display device 200.

[0086] For example, multiple display modules 400 can be spliced ​​together by borders. Each display module 400 has an independent border, and the display modules 400 are arranged closely together with their borders spliced ​​together.

[0087] For example, multiple display modules 400 can also be spliced ​​together visually through optical compensation or high-precision tight bonding.

[0088] The motherboard 300 is connected to multiple display modules 400. For example, the motherboard 300 may have a processor chip 500, which connects to the multiple display modules 400 via circuitry within the motherboard 300, sending control signals to drive the display modules 400 to emit light, thus achieving a combined display on the spliced ​​screen. Alternatively, the motherboard 300 may have multiple processor chips 500, each of which can connect to multiple display modules 400 to achieve a combined display on the spliced ​​screen.

[0089] For example, the display module 400 can be connected to the motherboard 300 via the first circuit board 600. The first circuit board 600 can be a flexible circuit board that can be bent.

[0090] For example, the display device 200 provided in this embodiment of the present disclosure may be the display device 200 in the above-described electronic device 100.

[0091] like Figure 3 As shown, this embodiment of the present disclosure provides a display module 400, the light-emitting surface of which includes a plane or a curved surface.

[0092] For example, the light-emitting surface of the display module 400 includes a plane, the light-emitting surface of the display module 400 can be rectangular, and multiple display modules 400 can be arranged in an array and spliced ​​together to form a rectangular display device 200.

[0093] For example, the light-emitting surface of the display module 400 may include a curved surface, or the light-emitting surface of the display module 400 may be a partial arc surface of a cylinder, and multiple display modules 400 may be spliced ​​together to form a cylindrical display device 200.

[0094] For example, such as Figure 3 As shown, the display module 400 may include a display area 410 and a non-display area 420. The display area 410 can be used to display images by emitting light, and the non-display area 420 surrounds the display area 410.

[0095] For example, the mid-frame of the display module 400 serves to encapsulate and provide support and protection. The mid-frame, along with adjacent structural components (e.g., the display panel's circuit board, circuit board protective cover, etc.), can be collectively referred to as the peripheral structure. The peripheral structure can be located in the display area 410, thereby narrowing the width of the non-display area 420, thus increasing the screen-to-body ratio of the display area 410 and enhancing the visual effect of the display module 400 and the display device 200. For example, the thickness of the mid-frame in the display area 410 can exceed 10mm, and the width of the non-display area 420 can be less than or equal to 0.5mm.

[0096] For example, in the display device 200, the gap width between the display areas 410 of two adjacent display modules 400 can be narrowed to less than 1 mm, specifically 0.88 mm.

[0097] For example, the display area 410 includes a peripheral area, which may be located within the display area 410 and may be a ring adjacent to the non-display area 420. The mid-frame of the display module 400 may be set in the peripheral area within the display area 410. The peripheral area may also be referred to as the edge area of ​​the display area 410.

[0098] like Figures 4-8 As shown, the display module 400 includes a base plate 1, a diffuser plate (DP) 2, a side frame 3, and a circuit board 4.

[0099] In some examples, the base plate 1 may include, but is not limited to, a rigid base plate or a flexible base plate. For example, the material of the base plate 1 may include, but is not limited to, glass, metal, and plastic. For example, plastic may include, but is not limited to, polyimide (PI) and acrylic (polymethylmethacrylate, PMMA). As another example, metal may include, but is not limited to, stainless steel (SUS) and galvanized steel. For example, galvanized steel may specifically include, but is not limited to, hot-dip galvanized steel (SGCC), electro-galvanized steel (SECC), and cold-rolled steel (SPCC).

[0100] like Figure 4 As shown, the diffuser plate 2 is disposed on one side of the base plate 1. For example, the display module 400 may also include a light source 5, which may be disposed on the side of the base plate near the diffuser plate 2.

[0101] For example, the light source 5 may include a direct-lit backlight. The light emitted by the light source 5 can travel from the base plate 1 towards the diffuser plate 2, and the direction of light transmission can be referred to as the perpendicular light emission direction. For example, the direction of light transmission can be parallel to the third direction Z.

[0102] For example, the light source 5 may also include a side-lit backlight. The light emitted by the light source 5 can be guided by a light guide plate to transmit the light towards the diffuser plate 2.

[0103] The diffuser plate 2 can be configured to scatter, homogenize, and soften the light provided by the light source 5. By changing the light propagation path, it solves problems such as uneven brightness, glare, and light spots caused by direct light from the light source 5, and ultimately achieves a more uniform and softer light output.

[0104] For example, the substrate of the diffuser plate 2 may be, but is not limited to, glass. An optical film may be laminated to the surface of the substrate of the diffuser plate 2, and at least one of the light-emitting surface and the light-receiving surface of the diffuser plate 2 may be printed with an ink layer, so that the diffuser plate 2 can perform the function of light diffusion.

[0105] The side frame 3 is disposed between the base plate 1 and the diffuser plate 2. For example, the side frame 3 can surround the periphery of all light sources 5. For instance, the side frame 3 can surround the peripheral area of ​​the base plate 1 and / or the diffuser plate 2. For instance, the side frame 3, the base plate 1, and the diffuser plate 2 can form a cavity 401, within which at least one light-emitting surface of the light source 5 is located.

[0106] The side frame 3 includes a first part 31 and a second part 32 that are connected to each other. The first part 31 is connected to the base plate 1, and the second part 32 abuts against the diffuser plate 2.

[0107] For example, the second part 32 is located on the side of the first part 31 away from the base plate 1, or the first part 31 is located on the side of the second part 32 away from the diffuser plate 2.

[0108] For example Figure 4 As shown, the first part 31 can be connected to the base plate 1 to form an integral structure, and the first part 31 and the second part 32 can abut against each other.

[0109] For example Figure 4 As shown, in some examples, the second part 32 and the diffuser plate 2 can be bonded together with sealant 10. For example, the second part 32 and the diffuser plate 2 can be sealed together with sealant 10.

[0110] like Figure 5 As shown, in some other examples, the display module 400 may also include a brightness enhancement layer 21, to which the diffuser plate 2 may be fixedly connected. For example, side adhesive 22 may be bonded to the sides of the diffuser plate 2 and the brightness enhancement layer 21 respectively, thus fixing the diffuser plate 2 and the brightness enhancement layer 21.

[0111] like Figure 9 As shown, the display module 400 may further include a first polarizer 61 and a second polarizer 62. The first polarizer 61 is located on the side of the display panel closer to the diffuser plate 2, and the second polarizer 62 is located on the side of the display panel away from the diffuser plate 2.

[0112] For example, the first polarizer 61 and the brightness enhancement layer 21 can be bonded together with sealant 10.

[0113] like Figure 4As shown, the first portion 31 is perpendicular to the base plate 1. For example, the first portion 31 being perpendicular to the base plate 1 can mean that at least a portion of the structure in the first portion 31 is perpendicular to the base plate 1. Alternatively, the first portion 31 being perpendicular to the base plate 1 can also mean that at least a portion of the surface in the first portion 31 is perpendicular to the base plate 1.

[0114] like Figure 4 As shown, the second part 32 has a first surface 321, which is not perpendicular to the diffuser plate 2. Exemplarily, the first surface 321 can be a plane. For example, the first surface 321 can face the inside of the side frame 3, or the first surface 321 can face the cavity 401 enclosed by the side frame 3, the bottom plate 1 and the diffuser plate 2.

[0115] In some examples, the side frame 3 may also include a first reflective sheet 33 located on the first surface 321 of the second part 32. Alternatively, the first reflective sheet 33 is located on the side of the second part 32 facing the cavity 401 enclosed by the side frame 3, the base plate 1, and the diffuser plate 2.

[0116] For example, the first reflective sheet 33 can be bonded to the side frame 3. For instance, the first reflective sheet 33 can be bonded to the first part 31 or the second part 32.

[0117] In some other examples, at least the first surface 321 of the second part 32 may be provided with a reflective coating. For example, the surface of the first part 31 facing the cavity 401 enclosed by the side frame 3, the base plate 1, and the diffuser plate 2 may be provided with a reflective coating. Alternatively, the first part 31 and the second part 32 may be an integral structure, and all surfaces of the side frame 3 may be provided with a reflective coating. This improves the manufacturing efficiency of the side frame 3 and reduces its manufacturing difficulty.

[0118] For example, a reflective coating may include a light-colored paint. Light-colored paints have strong reflective properties; for example, light-colored paints may include, but are not limited to, white paint and silver paint.

[0119] The above examples can all improve the reflectivity of the first surface 321 and enhance the reflection effect of the first surface 321 on light, thereby helping to improve the compensation effect of the first surface 321 on the light distribution of the diffuser plate 2.

[0120] The reflective coating can improve the reflectivity of the first reflective sheet 33, and can also reduce the thickness of the side frame 3 without using the first reflective sheet 33.

[0121] like Figure 4 As shown, the first portion 31 has an opening 301 that extends along the thickness direction of the first portion 31. For example, Figure 4 As shown, the first part 31 may include two or more planar structures, which have the same thickness direction.

[0122] For example, such as Figure 4 As shown, the opening 301 may not completely penetrate the first portion 31. For example, the opening 301 may not completely penetrate one of the planar structures in the first portion 31 (e.g., the first connecting portion 311).

[0123] For example, such as Figure 5 As shown, the opening 301 can penetrate through the first part 31. For example, the opening 301 may not completely penetrate the two planar structures in the first part 31 (e.g., the first connecting part 311 and the second connecting part 312).

[0124] In this embodiment of the disclosure, the display module 400 includes a backlight module and a display panel 6. The backlight module includes a base plate 1, a diffuser plate 2, a side frame 3, and a light source 5.

[0125] For example, the display panel 6 is located on the side of the diffuser plate 2 away from the base plate 1. For example, the display panel 6 includes an LCD display panel.

[0126] For example, the light-inlet side of the display panel 6 is close to the diffuser plate 2, while the light-outlet side of the display panel 6 is far from the diffuser plate 2. In the display module 400, the light emitted by the light source 5 can enter the display panel 6 through the diffuser plate 2. Under the drive of the display driving signal, the display panel 6 modulates the light to display the corresponding image.

[0127] For example, such as Figure 5 As shown, the display panel 6 and the diffuser plate 2 can be connected by sealant 10.

[0128] For example, the sealant 10 between the display panel 6 and the diffuser plate 2 can be located in the non-display area 420, and the sealant 10 can surround the display area 410 at least once.

[0129] For example, sealant 10 may include, but is not limited to, ultraviolet (UV) curing adhesives and thermosetting adhesives.

[0130] The display panel 6 can be connected to the circuit board 4. For example, the circuit board 4 can include any of the following: a flexible circuit board, a composite circuit board, and a rigid circuit board. For example, if the circuit board 4 is a rigid circuit board, a flexible circuit board is provided between the display panel 6 and the circuit board 4. The flexible circuit board serves as a relay circuit structure and can be bent, making it convenient for the display panel 6 to be connected to the circuit board 4 via the flexible circuit board.

[0131] The circuit board 4 includes a substrate 41 and a device 42. For example, the circuit board 4 may be at least part of the chip-on-film (COF) circuit structure of the display panel 6.

[0132] In the COF circuit structure, devices 42 used to implement various functions can be fixedly connected to the substrate 41. For example, the substrate 41 includes a flexible additional circuit board, and the device 42 includes a display driver IC (DDIC). The display driver IC can be fixedly connected to the substrate 41 based on die-hard flexible film packaging technology to achieve bonding between the chip and the flexible substrate circuit. For example, the substrate 41 and device 42 can be bent to the side or back of the display panel 6 through a flexible circuit board, thereby reducing the width of the non-display area 420 of the display panel 6 and improving the visual effect of the display module 400.

[0133] In some examples, substrate 41 may include, but is not limited to, a rigid substrate or a flexible substrate. For example, the material of substrate 41 includes, but is not limited to, polyimide (PI). Metal traces may be provided in substrate 41 for use as circuit connections.

[0134] For example, device 42 may include, but is not limited to, the display driver chip, timing control chip, anisotropic conductive film (ACF), capacitor, resistor, etc. of the display panel 6.

[0135] For example, device 42 may be disposed on at least one side of the surface of substrate 41, and the pins of device 42 may be connected to circuitry in substrate 41.

[0136] The substrate 41 is disposed on one side of the first portion 31 along its own thickness direction. For example, the substrate 41 may be located on the side of the first portion 31 away from the cavity 401, or the substrate 41 may be located on the outer periphery of the side frame 3.

[0137] For example Figure 4 As shown, in some examples, the surface of the substrate 41 facing the first portion 31 can be closely fitted to the first portion 31, thereby further reducing the space occupied by the substrate 41 and the first portion 31 along the thickness direction of the first portion 31.

[0138] For example, substrate 41 can be bonded to the first portion 31.

[0139] like Figure 10 As shown, in some other examples, the surface of the substrate 41 facing the first portion 31 may have a gap with the first portion 31 to accommodate the shape of different types of circuit boards 4.

[0140] like Figure 4 As shown, device 42 is located on the side of substrate 41 closer to the first portion 31. For example, device 42 can be closer to the display area 410 of display module 400 than substrate 41.

[0141] At least a portion of the device 42 is located within the opening 301. For example, the shape of the opening 301 may include, but is not limited to, a rectangle, a circle, or an ellipse, and the specific shape of the opening 301 can be set according to the shape and distribution position of the device 42.

[0142] For example, the orthographic projection of device 42 onto substrate 41 falls within the orthographic projection of opening 301 onto substrate 41.

[0143] In some examples, the substrate 41 and the first portion 31 are tightly fitted together, and the device 42 can be located entirely within the opening 301.

[0144] For example, the opening 301 may or may not penetrate the first portion 31, and the device 42 may not completely pass through the opening 301. The surface of the device 42 away from the substrate 41 has a first distance from the substrate 41, and the surface of the first portion 31 away from the substrate 41 has a second distance from the substrate 41, the second distance being greater than the first distance.

[0145] For example, opening 301 penetrates the first part 31, and device 42 passes completely through opening 301. The second distance is equal to the first distance.

[0146] In other examples, device 42 may not be completely located within opening 301.

[0147] For example, the substrate 41 and the first part 31 are closely attached, a part of the device 42 is located in the opening 301, and another part of the device 42 passes through the opening 301 and is located on the side of the first part 31 away from the substrate 41.

[0148] For example, the substrate 41 and the first part 31 are not completely tightly attached. A part of the structure of the device 42 may be located between the substrate 41 and the first part 31, and another part of the structure of the device 42 may be located within or through the opening 301. The second distance is less than the first distance.

[0149] In this embodiment, the side frame 3 of the display module 400 includes a second portion 32 having a first surface 321. The second portion 32 is close to the diffuser plate 2. The first surface 321 on the second portion 32 can be used to reflect the light provided by the light source 5, thereby reflecting the light onto the diffuser plate 2, thus compensating for the brightness of areas on the diffuser plate 2 with insufficient light. For example, for the display module 400 in a splicing screen, although the middle frame entering the display area 410 can narrow the width of the non-display area 420, the blocking of light by the middle frame will cause a decrease in the brightness of the peripheral area within the display area 410 of the display module 400, making the peripheral area within the display area 410 of the display module 400 darker than the central area. In this embodiment, the side frame 3 can be located in the peripheral area within the display area 410 of the display module 400, and the first surface 321 can compensate for the brightness of the light in the peripheral area of ​​the diffuser plate 2, improving the darkening of the peripheral area of ​​the display module 400.

[0150] The inventors discovered that the larger the orthographic projection of the side frame 3 on the diffuser plate 2 in the peripheral area of ​​the display area 410, the stronger the light blockage, the greater the energy loss of light in the peripheral area of ​​the display area 410, and the more severe the darkening of the peripheral area of ​​the display module 400.

[0151] In this embodiment of the present disclosure, the side frame 3 of the display module 400 includes a first part 31 that is perpendicular to the base plate 1. The first part 31 can cooperate with the second part 32 to both compensate for the brightness of the light in the peripheral area of ​​the diffuser plate 2 and reduce the thickness of the side frame 3 by utilizing the vertical shape of the first part 31. This avoids the side frame 3 from having too large an orthographic projection on the diffuser plate 2, which would instead block the light source 5 and darken the peripheral area of ​​the display module 400.

[0152] The components 42 on the circuit board 4 often have a certain thickness, which can easily occupy too much space in the packaging structure on the side of the display module 400.

[0153] In this embodiment, an opening 301 is provided on the first part 31. The opening 301 is used to accommodate the device 42, which can accommodate the device 42 on the side of the display module 400 into the side frame 3, thereby improving the space utilization of the packaging structure on the side of the display module 400. This helps to narrow the packaging structure on the side of the display module 400, reduce the intrusion of the packaging structure on the display area 410, and thus improve the darkening of the surrounding area of ​​the display module 400 to a greater extent, thereby improving the image quality of the surrounding area, improving the display quality at the screen splicing point of the display device 200, and thus improving the overall display effect of the display device 200.

[0154] like Figure 4As shown, for example, the side frame 3 may include a first reflective sheet 33, and the display module 400 may include a second reflective sheet 7. The first reflective sheet 33 is disposed on the side of the first portion 31 and the second portion 32 near the cavity 401, and the second reflective sheet 7 is disposed on the side of the base plate 1 near the diffuser. Thus, by utilizing the reflection of light by the first reflective sheet 33 and the second reflective sheet 7, the luminous efficiency of the display module 400 is enhanced.

[0155] For example, the first reflective sheet 33 and the second reflective sheet 7 can be connected as a single structure. For example, if the first reflective sheet 33 and the second reflective sheet 7 are a single structure, and the first reflective sheet 33 is bonded to the side frame 3, then the position of the single structure of the first reflective sheet 33 and the second reflective sheet 7 can be fixed.

[0156] like Figure 4 As shown, in some embodiments, the first reflective sheet 33 may also be disposed on the side of the first portion 31 away from the substrate 41 of the circuit board 4. Thus, by using the first reflective sheet 33 to reflect the light emitted by the light source 5, the reflective effect of the side frame 3 on the light is further enhanced, thereby helping to improve the compensation effect of the side frame 3 on the light distribution of the diffuser plate 2.

[0157] like Figure 4 As shown, in some embodiments, the display module 400 may also include tape 9, which may be attached around the sides of the base plate 1, side frame 3, diffuser plate 2 and display panel 6, thereby serving to encapsulate, protect the structure and reduce light leakage.

[0158] like Figure 5 As shown, in some examples, the opening 301 can penetrate through the first portion 31, and the first reflective sheet 33 covers the opening 301. For example, the opening 301 penetrates through the first portion 31 along its thickness direction, and the first reflective sheet 33 is disposed on the side of the substrate 41 away from the circuit board 4 where the opening 301 is located, covering the opening 301. Thus, the first reflective sheet 33 can shield the opening 301 and the device 42 within it, thereby preventing the side frame 3 from weakening its reflection of light due to the low reflectivity at the opening 301.

[0159] In some examples, the first reflector 33 and the first surface 321 of the first portion 31 are located on the same side of the side frame 3.

[0160] For example, the first reflective sheet 33 disposed on the first surface 321 and the first reflective sheet 33 disposed on one side of the first portion 31 can be connected. For example, the first reflective sheet 33 disposed on the first surface 321 and the first reflective sheet 33 disposed on one side of the first portion 31 can be an integral structure.

[0161] like Figures 4-6As shown, in some embodiments, the first part 31 includes a first connecting part 311 and a second connecting part 312.

[0162] like Figures 4-6 As shown, the first connecting part 311 is located on one side of the second connecting part 312 along its own thickness direction. The first connecting part 311 and the second part 32 are integral structures, and the second connecting part 312 and the base plate 1 are integral structures.

[0163] For example, the integrated structure formed by connecting the first connecting part 311 and the second part 32 can serve as the middle frame, and the integrated structure formed by connecting the second connecting part 312 and the base plate 1 can serve as the back plate. The middle frame and the back plate can be assembled and joined together to form the side frame 3 and the base plate 1.

[0164] For example, the material of the mid-frame can include, but is not limited to, metal and plastic. For example, the material of the mid-frame can be aluminum alloy, that is, the material of the first part 31 can be aluminum alloy. As another example, the material of the mid-frame can be polycarbonate (PC).

[0165] For example, the thickness direction of the second connecting portion 312 can be parallel to the second direction Y. The second direction Y can be a direction perpendicular to the first portion 31.

[0166] like Figure 4 As shown, in the first example, the opening 301 includes a first opening 3011, which is located in the first connecting portion 311, and the substrate 41 is located on the side of the first connecting portion 311 away from the second connecting portion 312. For example Figure 4 As shown, the second connecting portion 312 can be located on the side of the first connecting portion 311 near the center of the base plate, and the first opening 3011 of the first connecting portion 311 can accommodate at least a portion of the device 42.

[0167] For example Figure 4 As shown, the surface of the substrate 41 facing the first connecting portion 311 can be closely fitted with the first connecting portion 311, thereby reducing the space occupied by the substrate 41 and the first connecting portion 311 along the thickness direction of the first portion 31 to a greater extent.

[0168] For example, along the thickness direction of the first connecting portion 311, the first opening 3011 may not completely penetrate the first connecting portion 311, and the opening of the first opening 3011 faces the surface of the substrate 41. Alternatively, the first opening 3011 can be a groove formed on the first connecting portion 311, and the opening of the groove is located on the surface of the first connecting portion 311 facing the substrate 41.

[0169] For example, along the thickness direction of the first connecting portion 311, the first opening 3011 can penetrate the first connecting portion 311.

[0170] In the second example, the opening 301 includes a second opening 3012, which is provided in the second connection portion 312, and the substrate 41 is located on the side of the second connection portion 312 away from the first connection portion 311.

[0171] For example, the first connection portion 311 is located on the side of the second connection portion 312 near the center of the base plate 1, and the second opening 3012 of the second connection portion 312 can accommodate at least a portion of the device 42.

[0172] For example, along the thickness direction of the second connecting portion 312, the second opening 3012 may not completely penetrate the second connecting portion 312, and the opening of the second opening 3012 faces the surface of the substrate 41. Alternatively, the second opening 3012 can be a groove formed on the second connecting portion 312, and the opening of the groove is located on the surface of the second connecting portion 312 facing the substrate 41.

[0173] For example, along the thickness direction of the second connecting portion 312, the second opening 3012 can penetrate the second connecting portion 312.

[0174] like Figure 5 As shown, in the third example, the opening 301 includes a first opening 3011 and a second opening 3012. The first opening 3011 is located in the first connecting portion 311, and the second opening 3012 is located in the second connecting portion 312. The substrate 41 is located on the side of the second connecting portion 312 away from the first connecting portion 311. The channels of the first opening 3011 and the second opening 3012 are connected.

[0175] For example Figure 5 As shown, the first opening 3011 and the second opening 3012 have the same size, and the first opening 3011 and the second opening 3012 are positioned opposite each other.

[0176] For example Figure 5 As shown, along the thickness direction of the first connecting portion 311, the first opening 3011 can penetrate the first connecting portion 311. Along the thickness direction of the second connecting portion 312, the second opening 3012 can penetrate the second connecting portion 312. Thus, along the thickness direction of the first portion 31, the opening 301 penetrates the first portion 31.

[0177] For example, along the thickness direction of the first connecting portion 311, the first opening 3011 does not completely penetrate the first connecting portion 311. Along the thickness direction of the second connecting portion 312, the second opening 3012 penetrates the second connecting portion 312. Compared to the first opening 3011, the second opening 3012 is closer to the substrate 41. The second connecting portion 312 can be located on the side of the first connecting portion 311 away from the center of the base plate 1.

[0178] For example, along the thickness direction of the first connecting portion 311, the first opening 3011 penetrates the first connecting portion 311. Along the thickness direction of the second connecting portion 312, the second opening 3012 does not completely penetrate the second connecting portion 312. Compared to the second opening 3012, the first opening 3011 is closer to the substrate 41. The first connecting portion 311 can be located on the side of the second connecting portion 312 away from the center of the base plate 1.

[0179] like Figure 6 As shown, in the fourth example, the opening 301 includes a second opening 3012, which is disposed on the second connecting portion 312.

[0180] like Figure 6 As shown, along the thickness direction of the base plate 1, the first connecting portion 311 is spaced from the base plate 1, the substrate 41 is located between the first connecting portion 311 and the base plate 1, and the distance between the substrate 41 and the second connecting portion 312 is less than the thickness of the first connecting portion 311. Therefore, by shortening the size of the first connecting portion 311, the space freed up by the first connecting portion 311 can accommodate the substrate 41 of the circuit board 4. The substrate 41 of the circuit board 4 can be disposed on the same layer as the first connecting portion 311, thereby further reducing the thickness of the peripheral structure of the display module 400.

[0181] For example Figure 5 or Figure 6 As shown, the surface of the substrate 41 facing the second connecting portion 312 can be closely fitted with the second connecting portion 312, thereby reducing the space occupied by the substrate 41 and the second connecting portion 312 along the thickness direction of the first portion 31 to a greater extent.

[0182] like Figure 5 As shown, in the fourth example, the opening 301 is provided in the first connecting part 311 and the second connecting part 312.

[0183] The orthographic projection of the opening 301 provided in the first connecting portion 311 onto the substrate 41 and the orthographic projection of the opening 301 provided in the second connecting portion 312 onto the substrate 41 at least partially overlap.

[0184] For example, the orthographic projection of the opening 301 provided in the first connecting portion 311 onto the substrate 41 can completely overlap with the orthographic projection of the opening 301 provided in the second connecting portion 312 onto the substrate 41. In this way, it is easier to utilize the space of the opening 301 to accommodate the devices 42 of the circuit board 4.

[0185] like Figure 11A or Figure 11BAs shown, in some examples, a portion of the surface of the second part 32 near the base plate 1 abuts against the surface of the second connecting part 312 away from the base plate 1. Thus, by utilizing the abutting relationship between the second part 32 and the second connecting part 312, the stability of the connection between the integrated structure formed by the second part 32 and the first connecting part 311 (e.g., the integrated structure can be a mid-frame) and the second connecting part 312 is enhanced. This allows the first connecting part 311 to be provided only on one side of the second connecting part 312 along its own thickness direction, further reducing the space occupied by the first connecting part 311 along the thickness direction of the first part 31.

[0186] For example, the surface of the second part 32 near the base plate 1 and the surface of the second connecting part 312 away from the base plate 1 can be parallel to the thickness direction of the first part 31. This further enhances the stability of the connection between the integral structure formed by the second part 32 and the first connecting part 311 and the second connecting part 312.

[0187] For example, along the thickness direction of the first portion 31, the dimensions of the surface portion of the second portion 32 near the base plate 1 are equal to the dimensions of the surface portion of the second connecting portion 312 away from the base plate 1. Therefore, by making greater use of the surfaces of the second portion 32 and the second connecting portion 312 extending along the thickness direction of the first portion 31, it is also possible to enhance the stability of the connection between the integral structure formed by the second portion 32 and the first connecting portion 311 and the second connecting portion 312.

[0188] For example, the first connecting portion 311 and the second connecting portion 312 can be connected by threads. This enhances the stability of the connection between the integral structure formed by the second portion 32 and the first connecting portion 311 and the second connecting portion 312.

[0189] For example, the first connecting part 311 and the second connecting part 312 can be connected by bolts.

[0190] For example, such as Figure 11A As shown, the first connecting part 311 and the second connecting part 312 can be connected by screws.

[0191] In some examples, threaded holes may be provided on the first connecting portion 311 and / or the second connecting portion 312.

[0192] For example, the distance between the center of the threaded hole and the side edge of the first connecting part 311 can be greater than or equal to 2 mm, and the distance between the center of the threaded hole and the side edge of the second connecting part 312 can be greater than or equal to 3 mm. Thus, by setting sufficient spacing between the threaded hole and the side edges of the first connecting part 311 and the second connecting part 312, the structural strength of the threaded connection is ensured.

[0193] For example, the distance between the threaded hole and the side edge of the first connecting portion 311 includes, but is not limited to, 2mm, 2.5mm, 3mm, 3.5mm, and 4mm. The distance between the threaded hole and the side edge of the second connecting portion 312 includes, but is not limited to, 3mm, 4mm, 5mm, 6mm, and 7mm.

[0194] For example, the first connecting portion 311 or the second connecting portion 312 may be provided with multiple threaded holes, and the distance between two adjacent threaded holes is greater than or equal to the diameter of the threaded hole. This ensures the structural strength of the threaded connection.

[0195] For example, on the first connecting part 311 or the second connecting part 312, a plurality of threaded holes may be arranged along the extension direction of the side frame 3 and in a direction parallel to the thickness direction of the base plate 1.

[0196] For example Figure 11B As shown, the first connecting part 311 and the second connecting part 312 can be bonded together.

[0197] like Figure 7 As shown, in some embodiments, the first part 31 and the second part 32 are an integral structure.

[0198] For example, the integrated structure formed by connecting the first part 31 and the second part 32 can serve as the middle frame, and the bottom plate 1 can serve as the back plate.

[0199] In some examples, the opening 301 extends through the first portion 31 along the thickness direction of the first portion 31.

[0200] like Figure 7 As shown, in some other examples, the opening 301 is a groove formed on the first part 31, and the opening of the groove is located on the surface of the first part 31 facing the substrate 41.

[0201] Referring to the above example, for instance, a portion of the structure of device 42 is located within opening 301. A first distance exists between the surface of device 42 away from substrate 41 and substrate 41, and a second distance exists between the surface of the first portion 31 away from substrate 41 and substrate 41, the second distance being greater than the first distance. Therefore, the depth of opening 301 is sufficient to accommodate device 42.

[0202] like Figure 7 As shown, for example, the side frame 3 may also include a third part 34, which is an integral structure with the first part 31 and the second part 32.

[0203] The third part 34 is connected to the first part 31 and also to the base plate 1. The third part 34 can extend along the thickness direction of the first part 31. For example, the surface of the third part 34 near the base plate 1 and the surface of the first part 31 near the base plate 1 can be on the same plane. This allows the third part 34 to enhance the stability of the connection between the first part 31 and the base plate 1.

[0204] For example, the third part 34 may be bonded to the base plate 1 or connected by threads. For example, threaded connections include, but are not limited to, screw connections and bolt connections.

[0205] like Figure 8 As shown, in some other embodiments, the first part 31, the second part 32, and the base plate 1 are an integral structure. For example, the base plate 1 can serve as a back plate, and the integral structure formed by connecting the first part 31 and the second part 32 can serve as an extension structure of the back plate, thereby eliminating the need for a mid-frame and enabling the encapsulation of the display module 400's frame.

[0206] like Figure 7 As shown, for example, if the first part 31 and the second part 32 are an integral structure, the thickness of the first part 31 can be equal everywhere.

[0207] For example, the thickness of the first part 31 and the thickness of the second part 32 can be equal.

[0208] like Figure 7 As shown, for example, if the first part 31 and the second part 32 are an integral structure, the side structure of the middle frame or the back plate can be directly and sealed to the diffuser plate 2.

[0209] like Figures 7-8 As shown, in some embodiments, the display module 400 may further include a circuit board protective cover 11, which is located on the side of the circuit board 4 away from the side frame 3.

[0210] In some examples, the thickness direction of the circuit board cover 11 is the same as the thickness direction of the first portion 31 or the thickness direction of the substrate 41.

[0211] In some examples, along the thickness direction of the base plate 1, the end of the circuit board protective cover 11 near the diffuser plate 2 can be folded 180° to avoid the burrs on the sheet metal cross-section of the edge of the circuit board protective cover 11 from damaging the circuit board 4.

[0212] For example, the material of the circuit board protective cover 11 may include metal. The material of the circuit board protective cover 11 may include, but is not limited to, stainless steel sheet and galvanized steel sheet.

[0213] For example, the thickness of the circuit board protective cover 11 can be 0.2mm-0.4mm. For example, the thickness of the circuit board protective cover 11 may include, but is not limited to, 0.2mm, 0.25mm, 0.3mm, 0.35mm, and 0.4mm.

[0214] like Figure 12 As shown, in some embodiments, the ratio between the dimension D11 of the second portion 32 along the thickness direction of the base plate 1 and the dimension D12 of the second portion 32 along the thickness direction of the first portion 31 is greater than or equal to 1.8.

[0215] For illustrative purposes, Figure 12 The first reflector 33 is not shown in the diagram.

[0216] Therefore, the first surface 321 can reflect more light emitted from the light source 5 to the diffuser plate 2, and helps to narrow the thickness of the side frame 3, thereby narrowing the width of the dark area around the display module 400.

[0217] For example, the angle between the first surface 321 and the diffuser plate 2 ranges from 70° to 85°. For instance, the opening of this angle faces the center of the display module 400, or the opening of this angle faces the center of the base plate 1. For example, the angle between the first surface 321 and the diffuser plate 2 includes, but is not limited to, 70°, 73°, 75°, 80°, and 85°. Thus, by utilizing a larger angle between the first surface 321 and the diffuser plate 2, it is ensured that more light emitted by the light source 5 from the first surface 321 can be reflected to the diffuser plate 2, and it also helps to further narrow the thickness of the side frame 3.

[0218] like Figure 13 As shown, in some embodiments, the distance D1 between the edge of the opening 301 and the side edge of the first portion 31 is ≥1mm.

[0219] Therefore, reducing or avoiding the reduction of structural strength of the first part 31 caused by the opening 301, thereby ensuring the structural strength of the side frame 3 and ensuring the structural reliability of the display module 400.

[0220] like Figure 4 or Figure 7 As shown, in the first example, all openings 301 are located in the middle frame. For example, the middle frame is an integral structure including the first part 31 and the first connecting part 311.

[0221] For example, the distance D1 between the edge of the opening 301 and the side edge of the first part 31 is ≥1mm.

[0222] For example, the distance D1 between any edge of the opening 301 and the adjacent side edge of the first part 31 includes, but is not limited to, 1 mm, 2 mm, 3 mm, 4 mm, and 5 mm.

[0223] For example, the distance between the opening 301 and the threaded hole for connection of the first connecting part 311 and the second connecting part 312 is greater than or equal to 1 mm.

[0224] For example, the maximum size of the opening 301 is greater than or equal to 1 mm. For instance, if the opening 301 is rectangular, the maximum size of the opening 301 is the length of the rectangle.

[0225] For example, the maximum dimensions of the opening 301 include, but are not limited to, 1mm, 2mm, 3mm, 4mm, and 5mm.

[0226] like Figure 5 , Figure 6 or Figure 8 As shown, in the second example, the opening 301 is at least partially provided on the back plate. For example, the back plate is an integral structure including the base plate 1 and the second connecting portion 312.

[0227] For example, the distance D1 between the edge of the opening 301 and the side edge of the first part 31 is ≥5mm.

[0228] For example, the distance D1 between any edge of the opening 301 and the side edge of the first part 31 includes, but is not limited to, 5mm, 7mm, 10mm, 15mm, and 20mm.

[0229] In this embodiment, since the middle frame is typically made of high-strength materials such as aluminum alloy, the overall strength of the base plate 1 is relatively low. Furthermore, the openings 301 on the middle frame are easily formed. Therefore, the openings 301 on the back plate need to be designed with greater emphasis on ensuring structural strength and reducing manufacturing difficulty. For example, the middle frame can be formed by aluminum extrusion and computer numerical control (CNC) machining.

[0230] In some embodiments, the first portion 31 is provided with a plurality of openings 301. The circuit board 4 includes a plurality of devices 42, and at least two of the plurality of openings 301 accommodate different devices 42.

[0231] For example, the circuit board 4 includes three devices 42, two of which are relatively dispersed from the other device 42. The first part 31 may be provided with two openings 301. One opening 301 can accommodate at least a portion of the two devices 42 that are relatively close to each other, and the other opening 301 can accommodate at least a portion of the other device 42.

[0232] When designing the size and location of the opening 301, multiple devices 42 can be placed in one opening 301 as much as possible, and the size of the opening 301 can be minimized.

[0233] For example, the dimensions of the multiple openings 301 may be the same or not completely the same, and can be set according to the position, size and number of the device 42.

[0234] Therefore, by utilizing the distributed openings 301, multiple devices 42 can be accommodated separately. This not only ensures compatibility with situations where a large number of devices 42 are set on the substrate 41 of the circuit board 4, but also avoids a significant decrease in the structural strength of the side frame 3 caused by a single opening 301, thereby ensuring the structural strength and reliability of the side frame 3 and even the display module 400.

[0235] Taking the material in which opening 301 is at least partially provided on the back plate as an example, the structural design related to opening 301 is as follows:

[0236] like Figure 13 As shown, in some examples, along the first direction X, the distance between the edges of two adjacent openings 301 in the plurality of openings 301 is D2, the size of the opening 301 is L1, and D2≥3 / 10×L1.

[0237] The first direction X is the extension direction of the line connecting the centers of two adjacent openings 301.

[0238] Wherein, the size L1 of the opening 301 is the size of each opening 301. Along the first direction X, if the sizes of multiple openings 301 are not exactly the same, then the size L1 of the opening 301 can be the average size of the multiple openings 301 along the first direction X.

[0239] For example, along the first direction X, the ratio between the distance D2 between the edges of two adjacent openings 301 and the size L1 of the opening 301 includes, but is not limited to, 3 / 10, 1 / 2, 4 / 5, 1, and 2.

[0240] Therefore, by ensuring that there is a sufficiently long distance between the edges of two adjacent openings 301, it helps to control the impact of the openings 301 on the structural strength of the first part 31 within an acceptable range, and avoids excessive impact on the structural reliability of the side frame 3 and even the display module 400.

[0241] like Figure 13 As shown, in some embodiments, the size of the first portion 31 is L3 along the first direction X.

[0242] Along the first direction X, the total length of the opening 301 is L2, and L2≤4 / 7×L3.

[0243] For example, the first direction X can be a direction parallel to the base plate 1 and parallel to the side frame 3.

[0244] For example, the first part 31 is provided with an opening 301, the total length L2 of the opening 301 along the first direction X is the size L6 of the opening 301 along the first direction X.

[0245] For example, the first part 31 is provided with a plurality of openings 301, which are arranged along the first direction X. The total length L2 of the openings 301 along the first direction X is the sum of the dimensions L6 of all the openings 301 along the first direction X.

[0246] For example, along the first direction X, the ratio between the total length L2 of the opening 301 and the size L3 of the first portion 31 includes, but is not limited to, 4 / 7, 1 / 2, 3 / 7, 2 / 7, and 1 / 7.

[0247] Therefore, by limiting the total dimension of the opening 301 along the first direction X, the structural reliability of the side frame 3 and even the display module 400 is avoided from being excessively affected.

[0248] like Figure 13 As shown, in some embodiments, along the third direction Z, the size of the first portion 31 is L5, and L2≤1 / 3×L5.

[0249] Along the third direction Z, the total length of the opening 301 is L4, and L2≤1 / 3×L5.

[0250] For example, the third direction Z can be a direction perpendicular to the base plate 1.

[0251] For example, the first part 31 is provided with an opening 301, the total length L4 of the opening 301 along the third direction Z is the size L01 of the opening 301 along the first direction X.

[0252] For example, the first part 31 is provided with a plurality of openings 301, which are arranged along the third direction Z. The total length L4 of the openings 301 along the third direction Z is the sum of the dimensions L01 of all the openings 301 along the first direction X.

[0253] For example, along the third direction Z, the ratio between the total length L4 of the opening 301 and the size L5 of the first portion 31 includes, but is not limited to, 1 / 3, 1 / 4, 1 / 5, 1 / 6, and 1 / 7.

[0254] Therefore, by limiting the total dimension of the opening 301 along the third direction Z, the structural reliability of the side frame 3 and even the display module 400 is avoided from being excessively affected.

[0255] In some embodiments, the total opening area of ​​the aperture 301 is S1, the area of ​​the surface of the first portion 31 facing the substrate 41 is S2, and S1≤1 / 2×S2.

[0256] For example, the opening of the aperture 301 can be an opening that faces the substrate 41. For instance, the aperture 301 can be a groove with its opening facing the substrate 41.

[0257] For example, the first part 31 is provided with an opening 301, and the total opening area S1 of the opening 301 is the area of ​​the opening of the opening 301.

[0258] For example, the first part 31 is provided with a plurality of openings 301, and the total opening area S1 of the openings 301 is the area of ​​the openings of all the openings 301.

[0259] For example, the total opening area of ​​the aperture 301 is S1, including but not limited to 1 / 2, 1 / 3, 1 / 4, 1 / 5, and 1 / 6 of the area S2 of the surface of the first part 31 facing the substrate 41.

[0260] Therefore, by limiting the total area of ​​the opening 301, the structural reliability of the side frame 3 and even the display module 400 is avoided from being excessively affected.

[0261] like Figure 14 As shown, in some embodiments, the side frame 3 further includes a first reinforcing structure 35.

[0262] The first reinforcing structure 35 is disposed on one side of the first part 31 along its own thickness direction. The first reinforcing structure 35 is connected to the first part 31 and extends along the thickness direction of the base plate 1.

[0263] This embodiment of the present disclosure provides a first reinforcing structure 35, which acts as a reinforcing rib. The first reinforcing structure 35 can support and fix the structure of the first part 31, thereby improving the structural strength and reliability of the side frame 3.

[0264] In some examples, the first reinforcing structure 35 and the first part 31 can be an integral structure, which enhances the structural support and fixation effect of the first reinforcing structure 35 on the first part 31, thereby further enhancing the structural strength and reliability of the side frame 3.

[0265] In some examples, the first reinforcing structure 35 may be located between the first reflector 33 and the first portion 31, so as to substantially not interfere with the reflection of light by the first reflector 33.

[0266] In some examples, the first part 31 is provided with a plurality of openings 301. At least one first reinforcing structure 35 is provided between two adjacent openings 301.

[0267] For example, two first reinforcing structures 35 are provided between two adjacent openings 301 in a plurality of openings 301.

[0268] like Figure 14 As shown, in some examples, multiple openings 301 are arranged at least along a first direction X, and a first reinforcing structure 35 extends along a third direction Z.

[0269] For example, the first direction X can be a direction parallel to the base plate 1 and parallel to the side frame 3. The third direction Z can be a direction perpendicular to the base plate 1.

[0270] In some other examples, multiple openings 301 are arranged at least along a third direction Z, and a first reinforcing structure 35 extends along a first direction X.

[0271] For example, the thickness of the first reinforcing structure 35 is less than the depth of the opening 301.

[0272] For example, the thickness of the first reinforcing structure 35 is less than the dimension of the device 42 along the thickness direction of the first portion 31. As another example, the thickness of the first reinforcing structure 35 is less than the dimension of the portion of the device 42 within the opening 301 along the thickness direction of the first portion 31.

[0273] This design strengthens the structural rigidity of the side frame 3 while reducing its overall size along its thickness, thus minimizing light obstruction and improving the brightness reduction and darkening issues in the peripheral area of ​​the display module 400. This also ensures the structural reliability of the display module 400.

[0274] like Figure 15 and Figure 16 As shown, in some embodiments, the display module 400 further includes a second reinforcing structure 8.

[0275] like Figure 15 As shown, the second reinforcing structure 8 is disposed on the side of the base plate 1 near the diffuser plate 2. The second reinforcing structure 8 is connected to the base plate 1. The extension direction of the second reinforcing structure 8 intersects the thickness direction of the base plate 1 and also intersects the thickness direction of the first part 31 with the opening 301.

[0276] like Figure 16 As shown, in this embodiment of the present disclosure, by setting a second reinforcing structure 8, the second reinforcing structure 8 acts as a reinforcing rib. The first reinforcing structure 35 can not only support and fix the structure of the base plate 1, but also reduce the possibility of deformation of the side frame 3 in the thickness direction by ensuring the structural strength of the base plate 1 along the thickness direction of the side frame 3, thereby improving the structural strength and reliability of the side frame 3.

[0277] like Figure 15 As shown, in some examples, a plurality of openings 301 are arranged at least along the first direction X, and the extension direction of the second reinforcing structure 8 is parallel to the extension direction of the plurality of openings 301.

[0278] For example, the first direction X can be a direction parallel to the base plate 1 and parallel to the side frame 3.

[0279] In some examples, the second reinforcing structure 8 and the base plate 1 can be an integral structure, which enhances the structural support and fixation effect of the second reinforcing structure 8 on the base plate 1, and also enhances the structural strength of the base plate 1 along the extension direction of the side frame 3, further reducing the possibility of deformation of the side frame 3 in its own extension direction, thereby greatly enhancing the structural strength and reliability of the base plate 1 and the side frame 3.

[0280] For example, the second reinforcing structure 8 can be located between the second reflector 7 and the base plate 1, so that it will not interfere with the reflection of light by the second reflector 7.

[0281] For example, the LED chip can be positioned on the side of the second reflector 7 away from the second reinforcing structure 8. This enhances the structural reliability of the light source.

[0282] In some examples, along the thickness direction of the first portion 31, the distance between the orthographic projection of the second reinforcing structure 8 onto the diffuser plate 2 and the orthographic projection of the opening 301 onto the diffuser plate 2 is less than or equal to the dimension of the opening 301 along the thickness direction of the base plate 1.

[0283] This allows the second reinforcing structure 8 and the side frame 3 or the opening 301 to have a small gap, thereby ensuring that the second reinforcing structure 8 can reinforce the hollow side frame 3.

[0284] In some examples, the size of the opening 301 is L6 along the first direction X.

[0285] For example, the first direction X can be a direction parallel to the base plate 1 and parallel to the side frame 3.

[0286] Along the thickness direction of the first portion 31, the size of the second reinforcing structure 8 is W, 1 / 2×L6≤W≤L6.

[0287] For example, the ratio between the size W of the second reinforcing structure 8 and the size L6 of the opening 301 is, but is not limited to, 1 / 2, 2 / 3, 3 / 4, 4 / 5, or 1.

[0288] Therefore, by limiting the size W of the second reinforcing structure 8, it is possible to prevent the reinforcing center of the second reinforcing structure 8 from being far away from the side frame 3, which helps to effectively reinforce the side frame 3, thereby enhancing the structural strength of the side frame 3 and even the display module 400.

[0289] In some examples, the thickness of the second reinforcing structure 8 is greater than the thickness of the base plate 1. This ensures the reinforcing effect of the second reinforcing structure 8.

[0290] By setting up control group experiments, the control group consisted of a side frame 3 without opening 301 and without reinforcement structures on the side frame 3 and the base plate 1, as described in the related art. Experimental group one consisted of a side frame 3 with opening 301, without reinforcement structures, and with reinforcement structures on the base plate 1, as described in the present invention. Experimental group two consisted of a side frame 3 with opening 301, with reinforcement structures on the side frame 3, and without reinforcement structures on the base plate 1, as described in the present invention. By applying a force of 10N to one corner of the display module 400, the maximum deformation in each group occurred at that corner of the display module 400, and the maximum deformation was between 1.3 and 1.4 mm. The structural strength of experimental groups one, two, and the control group was comparable. By setting the first reinforcement structure 35 or the second reinforcement structure 8, the influence of opening 301 on the structural strength of the display module 400 can be effectively compensated.

[0291] In some other examples, the display module 400 may also be provided with a first reinforcing structure 35 and a second reinforcing structure 8 to further enhance the structural strength of the display module 400.

[0292] like Figure 17 As shown, in some embodiments, the second portion 32 also has a second surface 322 facing the diffuser plate 2.

[0293] like Figure 9 As shown, the second surface 322 is parallel to the surface of the diffuser plate 2 facing the bottom plate 1 and is connected by sealant 10.

[0294] For example, the material of the sealant 10 between the second part 32 and the diffuser plate 2 can be the same as the sealant 10 between the diffuser plate 2 and the display panel 6.

[0295] For example, the sealant 10 between the second part 32 and the diffuser plate 2 can be located in the non-display area 420, and the sealant 10 can surround the display area 410 at least once.

[0296] In this embodiment, the second surface 322 is planar. Therefore, during the manufacturing process of the display module 400, the second surface 322 can be used to apply the fluid sealant 10 and retain the uncured sealant 10, thereby reducing or avoiding the overflow of the sealant 10, ensuring that the thickness of the side frame 3 can be reduced, and ensuring that the side frame 3 and the diffuser plate 2 have a good sealing effect.

[0297] like Figure 17 As shown, the first surface 321 is connected to the second surface 322.

[0298] In some examples, the first surface 321 and the second surface 322 can be connected by a chamfer.

[0299] For example, the type of chamfer may include, but is not limited to, a rounded chamfer. For example, the radius of a rounded chamfer may be 0.1mm-0.2mm. For example, the radius of a rounded chamfer may include, but is not limited to, 0.1mm, 0.12mm, 0.15mm, 0.18mm, and 0.2mm.

[0300] Therefore, by using an appropriate chamfer size, damage to the diffuser plate 2 caused by the sharp edges of the side frame 3 can be reduced or avoided, while ensuring that the size of the second surface 322 is as large as possible, thereby improving the load-bearing and retention effect of the sealant 10.

[0301] For example, a chamfer may also be provided at one end of the second surface 322 near the outer side of the side frame 3. For instance, the shape and size of this chamfer may be the same as the chamfer between the first surface 321 and the second surface 322.

[0302] In some examples, the dimensions of the second surface 322 range from 0.5 mm to 0.8 mm along the thickness direction of the first portion 31.

[0303] For example, along the thickness direction of the first portion 31, the dimensions of the second surface 322 may include, but are not limited to, 0.5mm, 0.55mm, 0.6mm, 0.7mm, and 0.8mm.

[0304] Through the above embodiments, the dimensions of the second surface 322 are designed to minimize the increase in the thickness of the side frame 3, and to reduce the overflow of the sealant 10 by retaining uncured sealant 10, thereby ensuring a good sealing effect between the side frame 3 and the diffuser plate 2.

[0305] In some embodiments, the light source 5 includes a direct-lit backlight.

[0306] like Figure 18 As shown, the light source 5 includes multiple LED beads, which are arranged on the base plate 1.

[0307] For example, multiple LEDs are arranged on one side of the base plate 1 near the diffuser plate 2, with a gap between each pair of adjacent LEDs.

[0308] In some examples, the spacing between every two adjacent LEDs is not exactly equal.

[0309] For example, the type of lamp can include light-emitting diode (LED) lamps.

[0310] The system includes multiple LED beads, including a first LED bead 51 and a second LED bead 52. The first LED bead 51 is the LED bead closest to the edge of the base plate 1, and the second LED bead 52 is closer to the center of the base plate 1 than the first LED bead 51. The distance between any two adjacent second LED beads 52 is equal.

[0311] like Figure 18As shown, the distance between the center of the first LED bead 51 and the orthographic projection of the diffuser plate 2 and the side edge of the diffuser plate 2 is D3, and the distance between the centers of two adjacent second LED beads 52 is D4.

[0312] like Figure 19 As shown, the distance between the end of the first part 31 that is away from the side edge of the diffuser plate 2 and the side edge of the diffuser plate 2 is D5, the distance from the light-emitting surface of the lamp bead to the surface of the diffuser plate 2 facing the bottom plate 1 is H, and the maximum light-emitting angle of the lamp bead is α.

[0313] The light-emitting surface of the LED can refer to the light-emitting surface of the fluorescent light-emitting structure inside the LED.

[0314] Among them, the maximum light emission angle α of the lamp bead is the angle between the maximum range of light that the lamp bead can illuminate and the vertical light emission direction of the lamp bead.

[0315] Among them, D3 is positively correlated with D5, H, and α, and negatively correlated with D4. Therefore, based on the size of the side frame 3 and other structures and the light emission parameters of the LEDs, the LED arrangement density in the peripheral area of ​​the base plate 1 can be set within a more suitable range, further improving the light emission uniformity of the peripheral area of ​​the display module 400.

[0316] In some examples, the brightness of each region of the diffuser plate 2 can be inversely proportional to the distance between the LEDs directly opposite that region. Since the number of LEDs at the edge of the diffuser plate 2 is halved compared to the number of LEDs at the center, the ratio of the brightness of the region of the diffuser plate 2 directly opposite the first LED 51 to the brightness of the region of the diffuser plate 2 directly opposite the second LED 52 is D4 / (2×D3).

[0317] When D3 equals half of D4, the brightness ratio of the area of ​​the diffuser plate 2 directly opposite the first LED 51 to the area of ​​the diffuser plate 2 directly opposite the second LED 52 is 1. Therefore, the brightness of the peripheral area of ​​the display module 400 is consistent with the brightness of the central area. In other words, the closer D3 is to half of D4, the closer the brightness of the peripheral area of ​​the display module 400 is to the brightness of the central area.

[0318] like Figure 19 As shown, the LEDs are mounted on the base plate 1. The area to the right of point N on the diffuser plate 2 is illuminated by three adjacent LEDs arranged in sequence, while the area to the left of point N is illuminated by two LEDs. Therefore, starting from the second LED on the side frame 3, all LEDs are second LEDs 52. The uniform arrangement of these second LEDs 52 ensures uniform brightness in the area to the right of point N.

[0319] To ensure more uniform brightness in the peripheral area of ​​the display module 400, all light from the second LED starting from the side frame 3 is fully incident on the diffuser plate 2, thereby reducing light loss. Therefore, the position of the second LED starting from the side frame 3 can be set so that the maximum range of light emitted by this LED just illuminates the edge of the diffuser plate 2 without obstruction. The distance D6 between the orthographic projection of the center of the second LED starting from the side frame 3 onto the diffuser plate 2 and the side edge of the diffuser plate 2 is set to H × tanα.

[0320] The primary function of the first LED 51 is to supplement the brightness of the left-side area of ​​point N on the diffuser plate 2. The distance from point N to the edge of the display area is set to D6. Ideally, the light reflected from the side frame 3 can compensate for the brightness of the left-side area of ​​point N. The distance between the end of the side frame 3, which is away from the side edge of the diffuser plate 2 in its orthogonal projection, and the side edge of the diffuser plate 2 can be D5. The distance between the position of the maximum range of light emitted by the LED on the side frame 3 and the base plate 1 is H1, and the distance between the position of the maximum range of light emitted by the LED on the side frame 3 and the projection distance of the diffuser plate 2 is H2. Based on the position and angle relationship of the maximum emission angle light path, the influence of the packaging structure on the side of the display module 400 on the luminous brightness of the display area 410 and the thickness of the packaging structure on the side of the display module 400 can be calculated. For example, the thickness of the packaging structure on the side of the display module 400 can be equal to the distance between the end of the side frame 3, which is away from the side edge of the diffuser plate 2 in its orthogonal projection, and the side edge of the diffuser plate 2.

[0321] In some examples, the relationship between the effect of the packaging structure on the side of the display module 400 on the luminance of the display area 410 and the thickness of the packaging structure on the side of the display module 400 can be found in formulas (1)-(4):

[0322] D6-D5=H2×tanα (1)

[0323] H = H1 + H2 (2)

[0324] H1=(D3-D5) / tanα (3)

[0325] D6= D6-H×tanα (4)

[0326] Based on the above formulas (1)-(4), and based on the distance between the orthographic projection of the center of the second LED starting from the side frame 3 onto the diffuser plate 2 and the side edge of the diffuser plate 2, it can be calculated that, in some examples, the positional relationship of the relevant structures, including the first LED 51, can be referred to formula (5):

[0327] D3=2×D5+H1×tanα-D4+Q (5)

[0328] For example, Q can be determined based on factors such as the overall dimensions of the structure and the precision of the manufacturing process. For instance, the value of Q can be ±1mm, and may include, but is not limited to, -1mm, -0.5mm, -0mm, 0.5mm, and 1mm. Thus, the relevant dimensions and parameters can be adjusted according to actual needs, so that the brightness of the peripheral area of ​​the display module 400 is more consistent with the brightness of the rest of the display area 410.

[0329] In some examples, the position of the light source distribution can be calculated while keeping the thickness of the packaging structure on the side of the display module 400 as small as possible, in order to further enhance the display effect of the display module 400.

[0330] In some examples, if the calculated position of the LED does not match the LED arrangement density corresponding to the overall brightness requirement of the display module 400, the position of the third LED can be adjusted so that the spacing design between the third LED and the other second LEDs 52 is different, thereby taking into account the brightness consistency between the peripheral area and the central area of ​​the display module 400 and the overall brightness requirement.

[0331] Through the above embodiments, by utilizing the arrangement of LED beads and the reduction of the thickness of the surrounding structure, the width D6 of the dark area with lower brightness in the peripheral area of ​​the display area 410 can be narrowed by 5mm-7mm.

[0332] In some embodiments, the distance D5 between the side frame 3 at the end of the diffuser plate 2 that is away from the side edge of the diffuser plate 2 and the side edge of the diffuser plate 2 is ≤6mm.

[0333] For example, the distance D5 between the side frame 3 and the side edge of the diffuser plate 2, which is located away from the side edge of the diffuser plate 2 in the orthographic projection of the diffuser plate 2, can be including but not limited to 6mm, 5.8mm, 5.5mm, 5mm, or 4.5mm.

[0334] Through the above embodiments, by designing the cooperation between the side frame 3 and the components 42 of the circuit board 4, and by designing the detailed structure of the side frame 3, the thickness of the side frame 3 of the display module 400 and the overall thickness of the bezel structure of the peripheral area of ​​the display module 400 are effectively reduced, thereby enhancing the display quality of the peripheral area of ​​the display module 400 and improving the display effect of the display device 200 at the screen splicing point. For example, by using the opening 301 of the first part 31 of the side frame 3 to accommodate the components 42 of the circuit board 4, the idle space between the side frame 3 and the substrate 41 is compressed, which can reduce the space occupied by the assembly of the side frame 3 and the circuit board 4, and reduce the overall thickness of the side frame 3 and the circuit board 4 in the bezel structure of the peripheral area of ​​the display module 400. As another example, by utilizing the abutting relationship between the second part 32 and the second connecting part 312, the first connecting part 311 is only provided on one side of the second connecting part 312 along its own thickness direction, thereby reducing the thickness of the side frame 3.

[0335] like Figure 20 As shown, in some examples, tape 9 is attached to the side of the substrate 41 of the circuit board 4 away from the first portion 31. The first reflective sheet 33 is attached to the side of the first portion 31 near the cavity 401.

[0336] For example, the thickness T1 of the tape can be 0.1mm-0.2mm. For instance, the thickness T1 of the tape can be, but is not limited to, 0.1mm, 0.12mm, 0.15mm, 0.18mm, and 0.2mm.

[0337] For example, the thickness T2 of the substrate 41 can be 0.8mm-1.2mm. For instance, the thickness T2 of the substrate 41 can be including but not limited to 0.8mm, 0.9mm, 1mm, 1.1mm, and 1.2mm.

[0338] For example, the thickness T3 of the first part 31 can be 1mm-2mm. For instance, the thickness T3 of the first part 31 can be, but is not limited to, 1mm, 1.3mm, 1.5mm, 1.8mm, or 2mm.

[0339] For example, the thickness T4 of the first reflective sheet 33 can be 0.2mm-0.6mm. For instance, the thickness T4 of the first reflective sheet 33 can be, but is not limited to, 0.2mm, 0.3mm, 0.4mm, 0.5mm, and 0.6mm.

[0340] In the example above, the thickness of the structural component can refer to the dimension of the structural component along the second direction Y, which can be the thickness direction of the middle frame of the display module 400.

[0341] In conjunction with the above embodiments, in some examples, the first portion 31 may only include a portion of the back panel. In other examples, the first portion 31 may only include a portion of the middle frame. In some examples, the first portion 31 may include a portion of the middle frame and a portion of the back panel.

[0342] In conjunction with the above embodiments, in some examples, the surface of the first part 31 near the cavity 401 is the surface of the middle frame, and the middle frame is provided with a reflective coating. In this case, there is no need to set the first reflective sheet 33, which can further reduce the thickness of the peripheral structure of the display module 400.

[0343] like Figure 21 and Figure 22 As shown, in some embodiments, the tape 9 in the display module 400 may include a first tape 91 and a second tape 92.

[0344] The first tape 91 is wrapped around and pasted on the sides of the base plate 1, side frame 3, diffuser plate 2 and display panel 6.

[0345] For example, the substrate of the first adhesive tape 91 may include plastic. For instance, the substrate of the first adhesive tape 91 may include, but is not limited to, thermoplastic polyester and polyimide. For example, thermoplastic polyester materials include polyethylene terephthalate (PET).

[0346] For example, the first tape 91 can cover the sides of the backlight module, the diffuser plate 2, and the display panel 6.

[0347] The first tape 91 is opaque. For example, the first tape 91 is an elastic tape 9, and both the substrate and the adhesive backing of the first tape 91 are stretchable materials. For example, the first tape 91 can be a black elastic tape 9.

[0348] The second tape 92 is pasted around the outside of the first tape 91, and the second tape 92 has a notch 921 at at least one of the four corners of the display module 400.

[0349] For example, the orthographic projection of the notch 921 onto the plane of the base plate 1 can be "L" shaped, so that the second tape 92 avoids the four corners of the display module 400.

[0350] For example, the second tape 92 may have notches 921 at all four corners of the display module 400.

[0351] For example, such as Figure 21 As shown, along the thickness direction of the display module 400, the size of the notch 921 can be equal to or approximately equal to the thickness of the display module 400, and the notch 921 can divide the second tape 92 into multiple parts.

[0352] Therefore, the deformation of structural components such as the backlight module within the display module 400 can be effectively prevented from pulling on the second adhesive tape 92 at the four corners of the display module 400.

[0353] For example, such as Figure 22 As shown, along the thickness direction of the display module 400, the size of the notch 921 can be smaller than or approximately equal to the thickness of the display module 400, and the second tape 92 surrounding the outside of the first tape 91 can be an integral structure.

[0354] Therefore, the second tape 92 can not only provide structural protection for the four corners of the display module 400, but also reduce or avoid the stretching of the second tape 92 at the four corners of the display module 400 by the deformation of the structural components.

[0355] In some examples, the second tape 92 may also have multiple notches 921 at any of the four corners of the display module 400. For example, one notch 921 may be located on the side closer to the display panel 6, and another notch 921 may be located on the side closer to the base plate 1. By utilizing the distributed design of the notches 921, the structural protection of the four corners of the display module 400 by the second tape 92 is ensured, and the deformation of structural components further reduces or avoids pulling on the second tape 92 at the four corners of the display module 400, preventing light leakage caused by the peeling of the first and second tapes 92 under stress.

[0356] For example, the substrate of the second adhesive tape 92 may include metal. For instance, the substrate of the second adhesive tape 92 may include, but is not limited to, aluminum foil.

[0357] For example, the second tape 92 can be a black aluminum foil tape.

[0358] For example, the elasticity of the first tape 91 is greater than that of the second tape 92.

[0359] In the display module 400, the backlight module is prone to deformation due to changes in ambient temperature, which in turn causes the first adhesive tape 91 to deform. The first adhesive tape 91 is elastic and maintains its connection to the side of the display panel 6, reducing or preventing light leakage at the edges of the display module 400. However, as an elastic tape 91, the first adhesive tape 91 is soft and easily curls or breaks under external force. Therefore, a second adhesive tape 92 is attached to the outside of the first adhesive tape 91. The second adhesive tape 92 serves as an outer surface tape 9 for the display module 400, providing structural protection. When the ambient temperature changes, the four corners of the backlight module exhibit the strongest deformation tendency. This deformation stretches the second adhesive tape 92, causing peeling or curling of either the first or second adhesive tape 91, resulting in light leakage at the edges of the display module 400. Therefore, the four corners of the display module 400 are most susceptible to light leakage.

[0360] In this embodiment of the present disclosure, the second tape 92 has a notch 921 at at least one of the four corners of the display module 400, thereby reducing the pulling of the backlight module on the second tape 92 due to deformation. This can prevent the deformation of the four corners of the backlight module from pulling the first tape 91 or the second tape 92, thereby preventing the first tape 91 or the second tape 92 from peeling off, thereby reducing light leakage of the display module 400 and ensuring the structural reliability of the display module 400.

[0361] like Figure 21 and Figure 23 As shown, in some examples, the display module 400 also includes a third tape 93.

[0362] A portion of the structure of the third tape 93 covers the notch 921, and another portion of the structure of the third tape 93 is bonded to a portion of the outer surface of the second tape 92.

[0363] For example, the orthographic projection of the third tape 93 onto the plane where the base plate 1 is located can be "L" shaped, so that the third tape 93 can cover the notch 921.

[0364] For example, the number of third tapes 93 is the same as the number of notches 921, and the third tapes 93 cover each notch 921 respectively.

[0365] For example, the number of third tapes 93 is the same as the number of edges of the display module 400 with notches 921, and the third tapes 93 cover each edge of the display module 400.

[0366] For example, such as Figure 23 As shown, along the thickness direction of the display module 400, the size of the third tape 93 can be equal to or approximately equal to the thickness of the display module 400. The third tape 93 can further reduce light leakage of the display module 400 and enhance the structural protection provided by the tape 9.

[0367] The third tape 93 is opaque, and its elasticity is greater than that of the second tape 92.

[0368] In some examples, any one of the first tape 91, the second tape 92, and the third tape 93 may also be located on the side of the base plate 1 away from the diffuser plate 2. This enhances the integrity of the coverage of the backlight module, the diffuser plate 2, and the sides of the display panel 6, further reducing light leakage of the display module 400.

[0369] In some examples, the edge of any one of the first tape 91, the second tape 92, and the third tape 93 on the side of the display panel 6 may be spaced from the edge of the light-emitting surface of the display panel. This reduces or avoids the impact on the light emission of the display panel 6.

[0370] In some examples, the second tape 92 comprises aluminum foil tape, and the first tape 91 or the third tape 93 comprises elastic tape.

[0371] For example, the first tape 91 and the third tape 93 may be made of the same material.

[0372] In some examples, the dimension E1 of any notch 921 extending along the edge of either side of the display module 400 is ≥15mm, and the dimension E2 of any second tape 92 extending along the edge of either side of the display module 400 is ≥20mm.

[0373] For example, the dimension E1 of any notch 921 extending along the edge of any side of the display module 400 includes, but is not limited to, 15mm, 18mm, 20mm, 25mm, and 30mm.

[0374] For example, the dimension E2 of any second tape 92 extending along the edge of any side of the display module 400 includes, but is not limited to, 20mm, 25mm, 30mm, 35mm, and 40mm.

[0375] like Figure 24 As shown, this disclosure also provides a display module 400. The display module 400 includes a base plate 1, a diffuser plate 2, a side frame 3, and a circuit board 4.

[0376] The diffuser plate 2 is located on one side of the base plate 1. The side frame 3 is located between the base plate 1 and the diffuser plate 2.

[0377] The side frame 3 includes a first part 31 and a second part 32. The first part 31 is connected to the base plate 1, and the second part 32 abuts against the diffuser plate 2. The first part 31 is perpendicular to the diffuser plate 2, and the second part 32 has a first surface 321, which intersects with the diffuser plate 2.

[0378] The first part 31 includes a first connecting part 311 connected to the second part 32 and a second connecting part 312 connected to the base plate 1. The first connecting part 311 and the second part 32 are integrally formed, and the second connecting part 312 and the base plate 1 are integrally formed. The surface of the second connecting part 312 away from the base plate 1 abuts against the surface of the second part 32 near the base plate 1.

[0379] For example, the first connecting part 311 and the second part 32 can be a middle frame, and the second connecting part 312 and the bottom plate 1 can be a back plate.

[0380] For example, the first connecting portion 311 of the middle frame is located on one side of the second connecting portion 312 of the back plate, so as to achieve the abutment between the middle frame and the back plate. The second connecting portion 312 of the back plate is provided with a part of the middle frame structure on only one side of the opposite sides along its own thickness direction, thereby reducing the thickness of the side frame 3.

[0381] The circuit board 4 is located at the end of the first connecting part 311 away from the second part 32, and the circuit board 4 and the first connecting part 311 are located on the same side of the second connecting part 312.

[0382] In this embodiment, the side frame structure of the display module 400 is achieved by the abutment between the middle frame and the back plate, thus serving as the peripheral structure of the display module 400 and realizing the side encapsulation of the display module 400. By utilizing the surface of the second part 32 of the middle frame near the bottom plate 1 to abut the surface of the second connecting part 312 away from the bottom plate 1, the stability of the connection between the integrated structure formed by the second part 32 and the first connecting part 311 and the second connecting part 312 can be enhanced, thereby ensuring the reliability of the encapsulation provided by the peripheral structure of the display module 400. The first connecting part 311 is located on one side of the second connecting part 312 along its own thickness direction, and the second connecting part 312 is located on one side of the first connecting part 311 along its own thickness direction. Therefore, the structure of the middle frame for abutting with the back plate (the first connecting part 311) can be located only on one of the opposite sides of the second connecting part 312 of the back plate in the thickness direction. This helps to reduce the structure of the middle frame (the first connecting part 311) or the side plate of the back plate (the second connecting part 312), thereby reducing the thickness of the entire side frame 3. Therefore, the present embodiment can ensure the reliability of the side frame 3 for the side packaging of the display module 400, and can also reduce the thickness of the peripheral structure of the display module 400, thereby improving the display effect of the display module 400 and the splicing screen.

[0383] like Figure 24 As shown, in some embodiments, the display module 400 further includes a display panel 6, which includes a display area 410 and a non-display area 420.

[0384] In some examples, there is a gap between the orthographic projection of the side frame 3 onto the display panel 6 and the edge of the non-display area 420 near the display area 410.

[0385] For example Figure 24 As shown, the edge P1 of the side frame 3 projected onto the display panel 6 near the display area 410 is located within the display area 410.

[0386] For example, in the above embodiment, the second connecting part 312 of the back plate is provided with a middle frame structure on only one of the two opposite sides along its own thickness direction, thereby reducing the thickness of the side frame 3. The edge P1 of the side frame 3 after the thickness reduction on the display panel 6, which is closer to the display area 410, can also be located in the non-display area 420.

[0387] For example, the orthographic projection of the side frame 3 onto the display panel 6 does not overlap with the display area 410. This is also an effect achievable by reducing the thickness of the side frame 3.

[0388] In some examples, the second connection 312 is located on the side of the first connection 311 near the center of the base plate 1.

[0389] For example, the first connecting portion 311 is located between the second connecting portion 312 and the adhesive tape 9 for side encapsulation. Thus, the second connecting portion 312 is an extension of the base plate 1, and the structural stability of the base plate 1 is higher than that of the first portion 312. The first connecting portion 311 is sandwiched between the second connecting portion 312 and the remaining encapsulation structural components (such as the adhesive tape 9, or the flexible circuit board connected to the display panel 6) located outside the side frame 3, which can further improve the stability and reliability of the side encapsulation structure of the display module 400.

[0390] like Figure 24 As shown, in some examples, the display module 400 may also include a circuit board 4 and a foam 43, with the foam 43 located between the circuit board 4 and the second connection portion 312, and the circuit board 4 can be connected to the second connection portion 312 via the foam 43.

[0391] For example, the display module 400 provided in this embodiment of the present disclosure may be the display module 400 in the display device 200 described above.

[0392] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display module, characterized by include: Base plate; A diffuser plate is disposed on one side of the base plate; A side frame is disposed between the base plate and the diffuser plate; the side frame includes a first part and a second part that are connected to each other; the first part is connected to the base plate, and the second part abuts against the diffuser plate; The first part is perpendicular to the base plate, and the second part has a first surface that is not perpendicular to the diffuser plate. The first part is provided with an opening, which extends along the thickness direction of the first part; A circuit board includes a substrate and a device, the substrate being disposed on one side of the first portion along its own thickness direction, the device being located on the side of the substrate close to the first portion, and at least a portion of the device being located within the opening.

2. The display module of claim 1, wherein, The first part includes: a first connecting part and a second connecting part; The first connecting part is located on one side of the second connecting part along its own thickness direction; the first connecting part and the second part are an integral structure, and the second connecting part and the base plate are an integral structure; The opening includes a first opening, which is disposed in the first connecting portion, and the substrate is located on the side of the first connecting portion away from the second connecting portion; And / or, The opening includes a second opening, which is disposed in the second connecting portion, and the substrate is located on the side of the second connecting portion away from the first connecting portion.

3. The display module of claim 1, wherein, The first part includes: a first connecting part and a second connecting part; The first connecting part is located on one side of the second connecting part along its own thickness direction; the first connecting part and the second part are an integral structure, and the second connecting part and the base plate are an integral structure; The opening includes a second opening, which is disposed in the second connecting portion; along the thickness direction of the base plate, the first connecting portion and the base plate are spaced apart, the substrate is located between the first connecting portion and the base plate, and the distance between the substrate and the second connecting portion is less than the thickness of the first connecting portion.

4. The display module of claim 2 or 3, wherein, The opening is provided in the first connecting part and the second connecting part; The orthographic projection of the opening in the first connecting portion onto the substrate and the orthographic projection of the opening in the second connecting portion onto the substrate at least partially overlap.

5. The display module of claim 2 or 3, wherein, The second part, on the side of the base plate, abuts against the surface of the second connecting part on the side away from the base plate.

6. The display module of claim 1, wherein, The first part and the second part are an integral structure; the opening extends through the first part along the thickness direction of the first part, or the opening is a groove formed on the first part, and the opening of the groove is located on the surface of the first part facing the substrate.

7. The display module of claim 6, wherein, The first part, the second part, and the base plate are an integral structure.

8. The display module of claim 1, wherein, The side frame also includes a first reflective sheet; The opening extends through the first portion along the thickness direction of the first portion, and the first reflective sheet is disposed on the side of the substrate away from the opening and covers the opening.

9. The display module of claim 8, wherein, The first reflector and the first surface of the first portion are located on the same side of the side frame.

10. The display module according to claim 1, characterized in that, The distance D1 between the edge of the opening and the side edge of the first part is ≥1mm.

11. The display module of claim 1, wherein, The first part is provided with a plurality of openings; the circuit board includes a plurality of devices, and at least two of the plurality of openings accommodate different devices among the plurality of devices.

12. The display module of claim 11, wherein, Along the first direction, the distance between the edges of two adjacent openings in the plurality of openings is D2, and the size of the opening is L1, where D2≥3 / 10×L1; The first direction is the extension direction of the line connecting the centers of two adjacent openings.

13. The display module of claim 1, wherein, Along a direction parallel to the base plate and along a direction parallel to the side frame, the total length of the opening is L2, and the size of the first part is L3, where L2≤4 / 7×L3.

14. The display module of claim 1, wherein, Along the direction perpendicular to the base plate, the total length of the opening is L4, the size of the first part is L5, and L2≤1 / 3×L5.

15. The display module of claim 1, wherein, The total area of ​​the opening of the hole is S1, and the area of ​​the first part facing the substrate is S2, where S1 ≤ 1 / 2 × S2.

16. The display module of claim 1, wherein, The side frame also includes a first reinforcing structure; The first reinforcing structure is disposed on one side of the first part along its own thickness direction, the first reinforcing structure is connected to the first part, and the first reinforcing structure extends along the thickness direction of the base plate.

17. The display module of claim 16, wherein, The first part is provided with a plurality of openings; at least one of the first reinforcing structures is provided between two adjacent openings of the plurality of openings.

18. The display module of claim 1, wherein, It also includes a second reinforcing structure; The second reinforcing structure is disposed on the side of the base plate near the diffuser plate. The second reinforcing structure is connected to the base plate. The extension direction of the second reinforcing structure intersects the thickness direction of the base plate and also intersects the thickness direction of the first portion having the opening.

19. The display module according to claim 18, characterized in that, Along the thickness direction of the first portion, the distance between the orthographic projection of the second reinforcing structure onto the diffuser plate and the orthographic projection of the opening onto the diffuser plate is less than or equal to the size of the opening along the thickness direction of the base plate.

20. The display module according to claim 18, characterized in that, Along the direction parallel to the base plate and along the direction parallel to the side frame, the size of the opening is L6; along the thickness direction of the first part, the size of the second reinforcing structure is W, 1 / 2×L6≤W≤L6.

21. The display module according to any one of claims 18-20, characterized in that, The thickness of the second reinforcing structure is greater than the thickness of the base plate.

22. The display module according to claim 1, characterized in that, The second portion also has a second surface facing the diffuser plate; The first surface is connected to the second surface, and the second surface is parallel to the surface of the diffuser plate facing the bottom plate and is connected by sealant 10.

23. The display module according to claim 22, characterized in that, Along the thickness direction of the first portion, the dimensions of the second surface range from 0.5 mm to 0.8 mm.

24. The display module according to claim 1, characterized in that, It also includes multiple LED beads, which are arranged on the side of the base plate near the diffuser plate, with a gap between each two adjacent LED beads; The plurality of LED beads includes a first LED bead and a second LED bead, wherein the first LED bead is the LED bead closest to the edge of the base plate, and the second LED bead is closer to the center of the base plate than the first LED bead; The distance between any two adjacent second LED beads is equal; The distance between the center of the first LED bead and the side edge of the diffuser plate is D3; the distance between the centers of two adjacent second LED beads is D4; the distance between the end of the side frame that is away from the side edge of the diffuser plate and the side edge of the diffuser plate is D5; the distance from the light-emitting surface of the LED bead to the surface of the diffuser plate facing the base plate is H; and the maximum light-emitting angle of the LED bead is α. Among them, D3 is positively correlated with D5, H, and α, and negatively correlated with D4.

25. The display module according to claim 1, characterized in that, The second part has at least a first surface with a reflective coating.

26. The display module of claim 1, wherein, The distance D5 between the side frame and the side edge of the diffuser plate, at the end of the orthographic projection of the diffuser plate away from the side edge of the diffuser plate, is ≤6mm.

27. The display module of claim 1, wherein, Also includes: The display panel is located on the side of the diffuser plate away from the base plate.

28. The display module of claim 27, wherein, Also includes: The first tape is applied around and adhered to the sides of the base plate, the side frame, the diffuser plate, and the display panel; A second tape is attached around the outside of the first tape, and the second tape has a notch at at least one of the four corners of the display module; The first tape is opaque, and its elasticity is greater than that of the second tape.

29. The display module of claim 28, wherein, Also includes: A third tape, a portion of which covers the notch, and another portion of which is adhered to a portion of the outer surface of the second tape; The third tape is opaque and has greater elasticity than the second tape.

30. The display module according to claim 29, characterized in that, The first tape includes aluminum foil tape, and the second tape or the third tape includes elastic tape.

31. The display module of any of claims 28-30, wherein, The dimension E1 of any of the notches extending along the edge of any side of the display module is ≥15mm, and the dimension E2 of any of the second tapes extending along the edge of any side of the display module is ≥20mm.

32. The display module of claim 1, wherein, The angle between the first surface and the diffuser plate is in the range of 70°-85°, and the opening of the angle faces the center of the base plate.

33. A display module, characterized in that, include: Base plate, A diffuser plate is disposed on one side of the base plate; A side frame is disposed between the base plate and the diffuser plate; The side frame includes a first part and a second part, the first part being connected to the base plate and the second part abutting against the diffuser plate; The first portion is perpendicular to the diffuser plate, and the second portion has a first surface that intersects with the diffuser plate; The first part includes a first connecting part connected to the second part and a second connecting part connected to the base plate. The first connecting part and the second part are integrally formed, and the second connecting part and the base plate are integrally formed. The surface of the second connecting part away from the base plate abuts against the surface of the second part close to the base plate. A circuit board is located at the end of the first connecting portion away from the second portion, and the circuit board and the first connecting portion are located on the same side of the second connecting portion.

34. The display module of claim 33, wherein, It also includes a display panel, which includes a display area and a non-display area. There is a gap between the orthographic projection of the side frame on the display panel and the edge of the non-display area near the display area, or the orthographic projection of the side frame on the display panel does not overlap with the display area.

35. A display device comprising: include: The display module as described in any one of claims 1-34; Alternatively, a plurality of display modules as described in any one of claims 1-34, wherein the plurality of display modules are spliced ​​together; The motherboard is connected to the display module.

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