Structural member, light-emitting substrate, backlight module and display device

Abstract

A structural member. The structural member comprises two main body parts, a connecting part and two first binding parts. The two main body parts extend in the first direction, and a first interval is formed in the second direction. Each main body part comprises a plurality of first electronic elements which are arranged at intervals along the first direction; the connecting part extends in the second direction, and the two ends of the connecting part are connected with the ends, located on the same side, of the two main body parts respectively. The two binding parts are respectively connected with the end parts, far away from the connecting part, of the two main body parts, and the first binding part is configured to be connected with a connector.

Description

Structural component, light-emitting substrate, backlight module and display device Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a structural component, a light-emitting substrate, a backlight module, and a display device. Background Art

[0002] With the development of light-emitting diode technology, backlight modules using sub-millimeter light-emitting diodes (Mini-LED) and micro-LEDs (Micro-LED) have been widely used. The size of Mini-LED is approximately 100μm to 300μm, while the size of Micro-LED is approximately less than 100μm. Due to their advantages such as small size, high brightness, and high contrast, Mini-LED and Micro-LED, when used in backlight modules, can include multiple dimming zones and fine-tune each dimming zone to achieve high dynamic range (HDR) display, thus attracting increasing attention.

[0003] Summary of the Invention

[0004] On the one hand, a structural member is provided. The structural member includes two main bodies, a connecting portion and two first binding portions. The two main bodies extend along a first direction and have a first interval along a second direction. Each of the main bodies includes a plurality of first electronic components spaced apart along the first direction. The connecting portion extends along the second direction, and both ends of the connecting portion are respectively connected to the ends of the two main bodies located on the same side. The two binding portions are respectively connected to the ends of the two main bodies away from the connecting portion, and the first binding portion is configured to be connected to a connector.

[0005] In some embodiments, the interval between two adjacent first electronic components along the second direction is D y The dimension of the main body along the second direction is D2. y and D2 meets :D y =3D2+3M; the value range of M is 0~2mm.

[0006] In some embodiments, the interval between two adjacent first electronic components along the second direction is D y The dimension of the main body along the second direction is D2. y and D2 meets :D y =2D2+2M; the value range of M is 0~2mm.

[0007] In some embodiments, the structural member is an aluminum-based structural member.

[0008] In another aspect, a light-emitting substrate is provided. The light-emitting substrate includes a backplane and at least one structural component group disposed on the backplane. The structural component group includes a plurality of first structural components, a plurality of first connectors, a plurality of second structural components, and a plurality of second connectors. The plurality of first structural components include the structural components described in any of the above embodiments. The plurality of first structural components are spaced apart on the backplane along the second direction, each first structural component having a first opening. Each first binding portion of each first structural component is connected to a first connector. The plurality of second structural components include the structural components described in any of the above embodiments. The plurality of second structural components are spaced apart on the backplane along the second direction, each second structural component having a second opening, the first opening being oriented in the opposite direction to the second opening. Each first binding portion of each second structural component is connected to a second connector. The two first connectors, respectively connected to two adjacent first structural components and having the smallest distance along the second direction, are respectively connected to the two second connectors connected to the same second structural component. The two second connectors, respectively connected to two adjacent second structural components and having the smallest distance along the second direction, are respectively connected to the two first connectors connected to the same first structural component.

[0009] In some embodiments, the number of the first structural members is one more than the number of the second structural members. The structural member group further includes two third structural members and an outlet connector. The two third structural members are respectively located on both sides of the plurality of second structural members along the second direction, and the two third structural members both extend along the first direction. The third structural member is provided with a second binding portion at one end close to the first structural member, and a third binding portion at one end away from the first structural member. The second binding portion is connected to the second connector, and is connected to the second connector and the second connector connected to the plurality of first structural members and located at the outermost side in the second direction. The outlet connector is connected to the third binding portion.

[0010] In some embodiments, the number of the second structural members is one more than the number of the first structural members. The structural member group further includes two third structural members and an outlet connector. The two third structural members are respectively located on both sides of the plurality of first structural members along the second direction, and each third structural member extends along the first direction. The third structural member is provided with a second binding portion at one end close to the second structural member, and a third binding portion at one end away from the second structural member. The second binding portion is connected to the first connector, and is connected to the second connector connected to the plurality of second structural members and located at the outermost side in the second direction through the first connector. The outlet connector is connected to the third binding portion.

[0011] In some embodiments, the third structural member includes a plurality of second electronic components spaced apart along the first direction, and the spacing between two adjacent second electronic components is equal to the spacing between two adjacent first electronic components in the first structural member and the second structural member.

[0012] In some embodiments, the third structural member is an aluminum-based structural member, and the outlet connector and the second electronic component are arranged on a surface of the third structural member away from the back plate.

[0013] In some embodiments, the third structural member is an epoxy board structural member, the second electronic component is disposed on a surface of the third structural member away from the back plate, and the outlet connector is disposed on a surface of the third structural member closer to the back plate. The back plate includes a plurality of avoidance holes, and each outlet connector is disposed within one of the avoidance holes.

[0014] In some embodiments, the light-emitting substrate further comprises a driver circuit board and a circuit board. The driver circuit board is disposed on a surface of the backplane away from the third structural member. One end of the circuit board is connected to the driver circuit board, and the other end is connected to the outlet connector.

[0015] In some embodiments, the light emitting substrate includes a plurality of structural component groups arranged along the second direction, and a plurality of third structural components belonging to different structural component groups are arranged at intervals along the second direction.

[0016] In some embodiments, the first electronic component of the first structural member and the second electronic component, as well as the second electronic component, are all light-emitting components. The angle between the maximum light-emitting angle of the light-emitting component and the normal direction of the light-emitting component is α. The thickness of the first connector is T1, and the spacing between the first connector and the light-emitting component closest to the first connector in the first direction is L1, where T1 ≤ L1 × tan(90° - α). The thickness of the second connector is T2, and the spacing between the second connector and the light-emitting component closest to the second connector in the first direction is L2, where T2 ≤ L2 × tan(90° - α).

[0017] In yet another aspect, a backlight module is provided. The backlight module includes a driver circuit board and the light-emitting substrate described in any of the above embodiments. The first structural member of the light-emitting substrate, the first electronic component of the second structural member, and the second electronic component of the third structural member all include light-emitting elements. The driver circuit board is connected to the light-emitting substrate and is configured to transmit control signals to the light-emitting substrate.

[0018] In another aspect, a display device is provided. The display device includes the above-mentioned backlight module and a display panel. The display panel is arranged on the light-emitting side of the backlight module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings. Furthermore, the drawings described below are schematic diagrams and are not intended to limit the actual dimensions of the products, actual processes of the methods, actual timing of signals, and the like involved in the embodiments of the present disclosure.

[0020] FIG1 is a structural diagram of a display device according to some embodiments;

[0021] FIG2 is a structural diagram of a display panel according to some embodiments;

[0022] FIG3A is a structural diagram of a wiring substrate according to some embodiments;

[0023] FIG3B is another structural diagram of a wiring substrate according to some embodiments;

[0024] FIG4 is a partial enlarged view of area A in FIG3A ;

[0025] FIG5 is another structural diagram of a wiring substrate according to some embodiments;

[0026] FIG6 is a structural diagram of a structural member according to some embodiments;

[0027] FIG7 is a structural diagram of a light-emitting substrate according to some embodiments;

[0028] FIG8 is a structural diagram of a third structural member according to some embodiments;

[0029] FIG9 is a diagram illustrating a connection structure between an outlet connector and a third structural member according to some embodiments;

[0030] FIG10 is another connection structure diagram of the outlet connector and the third structural member according to some embodiments;

[0031] FIG11 is another structural diagram of a light-emitting substrate according to some embodiments;

[0032] FIG12 is a structural diagram of the back side of a light emitting substrate according to some embodiments;

[0033] FIG13 is a cross-sectional view along the section line AA in FIG7 or FIG11. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the embodiments described are only some of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present disclosure.

[0035] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that the particular features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0036] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0037] When describing some embodiments, the terms "coupled" and "connected" and their derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0038] “At least one of A, B and C” has the same meaning as “at least one of A, B or C” and both include the following combinations of A, B and C: A only, B only, C only, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B and C.

[0039] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0040] The use of "adapted to" or "configured to" herein is intended to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0041] Additionally, the use of “based on” is meant to be open and inclusive, as a process, step, calculation, or other action “based on” one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0042] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0043] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within an acceptable deviation range, wherein the acceptable deviation range is as determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, that the difference between the two equals is less than or equal to 5% of either one.

[0044] It will be understood that when a layer or component is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present between the layer or component and the other layer or substrate.

[0045] Exemplary embodiments are described herein with reference to cross-sectional and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of layers and the area of ​​regions are exaggerated for clarity. Therefore, variations in shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances are contemplated. Therefore, the exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include deviations in shape due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shape of regions of the device and are not intended to limit the scope of the exemplary embodiments.

[0046] Some embodiments of the present disclosure provide a display device, which may be any device that displays content, whether in motion (eg, video) or fixed (eg, still image), and whether text or images.

[0047] Exemplarily, the display device can be a mobile phone, a wireless device, a personal digital assistant (PDA), a wearable device, an augmented reality (AR) device, a virtual reality (VR) device, a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a television monitor, a flat-panel display, a computer monitor, an automobile display (e.g., an odometer display, etc.), a cockpit controller and / or display, a display of a camera view (e.g., a display of a rearview camera in a vehicle), an electronic photograph, an electronic billboard or sign, a projector, packaging and aesthetic structures (e.g., a display of an image of a piece of jewelry), etc.

[0048] In some embodiments, the display device may be a liquid crystal display (LCD) device. Referring to FIG1 , when the display device 1000 is a liquid crystal display, the display device 1000 may include a backlight module 100 and a display panel 200. Of course, the embodiments of the present disclosure are not limited thereto. The display device 1000 may also include other structures or devices. For example, as shown in FIG1 , the display device 1000 may also include a frame 300 and a glass cover plate (not shown in FIG1 ) provided on the display side of the display panel 200. As long as the same technical ideas as those of the present application are applied, they will not be listed here one by one.

[0049] The display panel 200 has a display side and a non-display side. The display side refers to the side of the display panel 200 used to display images (the upper side of the display panel 200 in Figure 1), and the non-display side refers to the side opposite the display side. The backlight module 100 is disposed on the non-display side of the display panel 200 (the lower side of the display panel 200 in Figure 2) and is used to provide backlight for the display panel 200.

[0050] 2 , when the display device 1000 is a liquid crystal display device, the display panel 200 may be a liquid crystal display panel. In this case, the display panel 200 may include an array substrate 210 , a cell substrate 220 , and a liquid crystal layer 230 disposed between the array substrate 210 and the cell substrate 220 .

[0051] The array substrate 210 is provided with a thin-film transistor (TFT) 212 and a pixel electrode 213 located on a first substrate 211. The thin-film transistor 212 includes an active layer, a source electrode, a drain electrode, a gate electrode, and a gate insulating layer. The source electrode and the drain electrode are respectively in contact with the active layer, and the pixel electrode 213 is electrically connected to the drain electrode of the thin-film transistor 212.

[0052] As shown in FIG2 , the array substrate 210 further includes a common electrode 214 disposed on a first substrate 211. The pixel electrode 213 and the common electrode 214 may be disposed on different layers. In this case, as shown in FIG2 , a first insulating layer 215 is disposed between the pixel electrode 213 and the common electrode 214. If the common electrode 214 is disposed between the film layer where the thin film transistor 212 is located and the pixel electrode 213, a second insulating layer 216 is further disposed between the common electrode 214 and the thin film transistor 212, as shown in FIG2 .

[0053] The pixel electrode 213 and the common electrode 214 may also be provided on the same layer (not shown in the figure). In this case, both the pixel electrode 213 and the common electrode 214 have a comb-tooth structure including a plurality of strip-shaped sub-electrodes. In other embodiments, the common electrode 214 may also be provided in the cell substrate 220.

[0054] As shown in FIG2 , the alignment substrate 220 may include a color filter layer 222 disposed on a second substrate 221. In this case, the alignment substrate 220 may also be referred to as a color filter substrate (CF). When the backlight module 100 is configured to emit white light, the color filter layer 222 includes at least red, green, and blue photoresist units. The red, green, and blue photoresist units are aligned with the sub-pixels of the display panel 200, respectively. The alignment substrate 220 also includes a black matrix pattern 223 disposed on the second substrate 221. The black matrix pattern 223 is configured to separate the red, green, and blue photoresist units.

[0055] 2 , the display panel 200 may further include a first polarizer 240 disposed on a side of the cell substrate 220 away from the liquid crystal layer 230, and a second polarizer 250 disposed on a side of the array substrate 210 away from the liquid crystal layer 230. In addition, the display panel 200 may further include other layers or structures, which are not listed in detail in the embodiments of the present disclosure.

[0056] When the display device is operating, the backlight module 100 emits light toward the display panel 200. An electric field is formed between the pixel electrodes and the common electrode of the display panel. Liquid crystal molecules within the liquid crystal layer 230 are deflected by the electric field, thereby adjusting the brightness (grayscale) of the light emitted by the backlight module 100. Light passing through the liquid crystal layer 230 is further emitted toward the cell substrate 220, where it is colored by the color filter layer 222 and then emitted, thereby realizing image display.

[0057] As shown in FIG1 , the backlight module 100 may include a light-emitting substrate 110 and an optical film 120 disposed on the side of the light-emitting substrate 110 close to the display panel 200. The light-emitting substrate 110 may directly emit white light, or the light-emitting substrate 110 may also emit light of other colors, which is then emitted toward the display panel 200 after color conversion by the optical film 120. For example, the light-emitting substrate 110 may emit blue light, and the optical film 120 may include a quantum dot film, which converts the blue light emitted by the light-emitting substrate into white light and then emits it toward the display panel. The optical film 120 may include a diffuser and / or an optical brightness enhancement film, which is not specifically limited in the embodiments of the present disclosure. The diffuser has a scattering and diffusion effect, which can further mix the above-mentioned white light; the optical brightness enhancement film can improve the light extraction efficiency of the backlight module 100. In addition, the backlight module 100 may also include other film layers or structures, which are not listed one by one in the embodiments of the present disclosure.

[0058] As shown in Figure 1, the light-emitting substrate 110 includes a backplane 111 and a light source disposed on the backplane 111. The light source includes a plurality of light-emitting elements 112 (such as Mini-LED chips or Micro-LED chips) arranged in an array. A light mixing interval H is provided between the light-emitting substrate 110 and the optical film 120. The light-emitting elements 112 can be equivalent to point light sources. The light emitted by adjacent light-emitting elements 112 undergoes preliminary light mixing within the light mixing interval H and then is emitted to the optical film 120. After further homogenization by the optical film 120, it is emitted to the display panel 200. It can be understood that the light that ultimately enters the display panel can be equivalent to the light emitted by the surface light source.

[0059] In some embodiments, in display products with a large light mixing interval H (e.g., greater than 20 mm), the intervals between adjacent light-emitting elements 112 on the light-emitting substrate 110 are large, and a light bar can be used to form the light-emitting substrate. The light-emitting substrate can be divided into multiple dimming zones, and the brightness of the light-emitting elements in each dimming zone can be finely adjusted. When the number of light-emitting elements in each dimming zone remains unchanged, the larger the intervals between the light-emitting elements on the light bar, the larger the area of ​​the dimming zone.

[0060] In the related art, the light bar may include a U-shaped circuit board, on which a plurality of light-emitting elements and a first connector are provided. When a plurality of U-shaped circuit boards are arranged to assemble to form a light-emitting substrate, a transfer circuit board is also required, on which a plurality of second connectors are provided. The plurality of second connectors are arranged in two rows perpendicular to the extension direction of the transfer circuit board, and each row includes a plurality of second connectors arranged along the extension direction of the transfer circuit board. Along the direction perpendicular to the extension direction of the transfer circuit board, a U-shaped circuit board is provided on both sides of the transfer circuit board, and the first connectors on the U-shaped circuit boards on both sides are connected to the second connectors on the transfer circuit board. The transfer circuit board can be connected to an external circuit (such as a driving circuit board) through a flexible circuit board (Flexible Printed Circuit; FPC for short). Along the direction perpendicular to the extension direction of the transfer circuit board, two adjacent U-shaped circuit boards include two pairs of interconnected first connectors and second connectors, resulting in a large spacing between the light-emitting elements on both sides of the transfer circuit board, which is not conducive to reducing the area of ​​the dimming partition of the light-emitting substrate.

[0061] To address the aforementioned technical issues, embodiments of the present disclosure provide a wiring substrate 2000 that can be used to manufacture structural components. Referring to Figures 3A and 4 , wiring substrate 2000 includes a substrate 2100, which includes a first region 30 and a second region 40. In Figure 3A , different types of fill patterns are used to clearly illustrate the boundaries and positions of the first and second regions 30, 40.

[0062] The material of substrate 2100 can be any of glass, quartz, sapphire, ceramic, etc.; or a semiconductor material, such as a single crystal semiconductor substrate or polycrystalline semiconductor based on silicon or silicon carbide, a compound semiconductor such as silicon germanium, or SOI (Silicon On Insulator); or an organic resin material such as epoxy resin, triazine, silicone resin, or polyimide. Substrate 2100 can also be an epoxy board (FR4) type printed circuit board (PCB), or a flexible PCB that is easily deformable; or a ceramic material such as silicon nitride (AlN) or Al2O3, or a metal or metal compound, or a metal core printed circuit board (MCPCB) or a metal copper clad laminate (MCCL).

[0063] The first area 30 includes two first trunk areas 31, a first connection area 32 and two first binding areas 33. The two first trunk areas 31 extend along the first direction X and have a second interval D5 along the second direction Y; wherein the second interval D5 refers to the distance between the two first trunk areas 31 in the second direction Y. The ends of the first connection area 32 are respectively connected to the ends of the two first trunk areas 31 on the same side (such as the left end in Figure 3A). The two first binding areas 33 are respectively connected to the ends of the two first trunk areas 31 away from the first connection area 32, and each first binding area 33 is configured to be connected to a first connector. The first area 30 forms a U-shaped structure, and the first area 30 has a third opening 34. The third opening 34 refers to the area between the two first trunk areas 31. The direction of the third opening 34 is away from the first connection area 32, that is, the direction from left to right in Figure 3A. Wherein, the first direction X and the second direction Y intersect with each other. For example, the first direction X and the second direction Y are perpendicular to each other.

[0064] The second area 40 includes two second trunk areas 41, a second connection area 42 and two second binding areas 43. The two second trunk areas 41 extend along the first direction X and have a third interval D6 along the second direction Y; wherein the third interval D6 refers to the distance between the two second trunk areas 41 in the second direction Y. The ends of the second connection area 42 are respectively connected to the ends of the two second trunk areas 41 on the same side (such as the right end in Figure 3A). The two second binding areas 43 are respectively connected to the ends of the two second trunk areas 41 away from the second connection area 42, and each second binding area 43 is configured to be connected to a second connector. The second area 40 forms a U-shaped structure, and the second area 40 has a fourth opening 44, which refers to the area between the two second trunk areas 41. The fourth opening 44 is oriented in the direction away from the second connection area 42, that is, from right to left in Figure 3A.

[0065] As shown in Figure 3A, the direction of the fourth opening 44 (from right to left along the first direction X in Figure 3A) is opposite to the direction of the third opening 34 (from left to right along the first direction X in Figure 3A), so that the first trunk area 31 can extend into the fourth opening 44, and the second trunk area 42 can extend into the third opening 34. For example, two first trunk areas 31 that belong to two adjacent first areas 30 and have the smallest distance along the second direction Y are located in the fourth opening 44 of the same second area 40; two second trunk areas 41 that belong to two adjacent second areas 40 and have the smallest distance along the second direction Y are located in the third opening 34 of the same first area 30. Based on this, it is beneficial to increase the space utilization of the substrate 2100. A wiring substrate 2000 can be formed into multiple structural parts by cutting, and any of the above-mentioned first areas 30 and any of the second areas 40 are used to form an independent structural part (for example, a structural part that can be used as a light source). Each first area 30 and each second area 40 is a U-shaped structure.

[0066] In some embodiments, referring to FIG3A , the dimension D3 of the first trunk region 31 along the first direction X is equal to the dimension D4 of the second trunk region 41 along the first direction X. And / or, referring to FIG4 , the dimension of the first trunk region 31 along the second direction Y is equal to the dimension of the second trunk region 41 along the second direction Y, and the dimensions of the first trunk region 31 and the second trunk region 41 along the second direction Y are both D2. In this way, first trunk regions 31 and second trunk regions 41 of identical size and shape can be formed. The first trunk regions 31 and second trunk regions 41 are used to house first electronic components 50, which can be, for example, light-emitting elements, sensors, or other components arranged in an array. The identical size and shape of the first trunk regions 31 and second trunk regions 41 facilitates uniformity in the arrangement of the first electronic components 50 within the first trunk regions 31 and second trunk regions 41.

[0067] It can be understood that when the first electronic component 50 is a light-emitting component, the structural component formed by cutting the wiring substrate 2000 is a light-emitting structural component. Among them, from the type of light-emitting component, the light-emitting component can be an LED with a quantum well junction, an LED with a columnar structure, an LED with a double heterojunction, etc. The light-emitting component can also include a packaging structure on the light-emitting side of the LED. The packaging structure can be made of transparent material, and the surface can be a curved surface or a hemispherical surface. From the size of the light-emitting component, the light-emitting component can be a structure with a size miniaturized to the order of hundreds of microns. For example, the light-emitting area of ​​the LED in the light-emitting component can be 1mm 2 Below, or, the light emitting area of ​​the LED can be 10000μm 2 Below, or, the light emitting area of ​​the LED can be 3000μm 2 Below, the light emitting area of ​​the LED can be 700μm 2Of course, the embodiments of the present disclosure are not limited thereto, and the light emitting elements may also adopt light emitting elements of other structures, as long as the same technical concept as that of the present application is applied.

[0068] In some embodiments, as shown in FIG3A , the second interval D5 is equal to the third interval D6 . This allows the first region 30 and the second region 40 to have the same size and shape, allowing the first region 30 and the second region 40 to form structural components with the same shape, thereby improving the consistency and versatility of the structural components.

[0069] For example, the size of the first connection region 32 of the first region 30 along the first direction X is equal to the size of the second connection region 42 of the second region 40 along the first direction X. Furthermore, because the second interval D5 is equal to the third interval D6, the size of the first connection region 32 of the first region 30 along the second direction Y is equal to the size of the second connection region 42 of the second region 40 along the second direction Y. In this way, the first trunk region 31 of the first region 30 can be completely located within the fourth opening 44 of the second region 40, and the second trunk region 42 of the second region 40 can be completely located within the third opening 34 of the first region 30. This can improve the space utilization within the third opening 34 and the fourth opening 44, thereby improving the space utilization of the wiring substrate 2000 and reducing the manufacturing cost of the wiring substrate 2000.

[0070] In some embodiments, as shown in Figures 3A and 4 , the second interval D5 is greater than twice the dimension D2 of the second trunk region 41 along the second direction, and less than or equal to 2.5 times the dimension D2 of the second trunk region 41 along the second direction Y. That is, 2D2 < D5 ≤ 2.5D2. In this case, the two second trunk regions 41 of the second region 40 are respectively located within the fourth openings 44 of two adjacent first regions 30, and only two second trunk regions 41 are disposed within each fourth opening 44.

[0071] The third interval D6 is greater than twice the dimension D2 of the first trunk region 31 along the second direction Y, and less than or equal to 2.5 times the dimension D2 of the first trunk region 31 along the second direction Y, that is, 2D2 < D6 ≤ 2.5D2. In this case, the two first trunk regions 31 of the first region 30 are respectively located within the fourth openings 44 of the two adjacent second regions 40, and one fourth opening 44 is provided with two first trunk regions 31 of the two adjacent first regions 30. In other words, two first trunk regions 31 can be provided within each fourth opening 44.

[0072] 2D2<D5≤2.5D2, and 2D2<D6≤2.5D2, not only can the two second main areas 41 belonging to the two second areas 40 and adjacent to each other be set in the same third opening 34, but the two first main areas 31 belonging to the two first areas 30 and adjacent to each other can be set in the same fourth opening 44, but it is also beneficial to set a gap between the first main area 31 and the second main area 41, so that the first area 30 and the second area 40 can be subsequently separated from the gap between the first main area 31 and the second main area 41.

[0073] As shown in FIG3A , the substrate 2100 includes a plurality of first regions 30 sequentially arranged along a second direction Y, and a plurality of second regions 40 sequentially arranged along the second direction Y. Two first trunk regions 31, respectively belonging to two adjacent first regions 30 and having the smallest distance along the second direction Y, are located within the fourth opening 44 of the same second region 40. Two second trunk regions 41, respectively belonging to two adjacent second regions 40 and having the smallest distance along the second direction Y, are located within the third opening 34 of the same first region 30. In this way, the second trunk regions 41 can be arranged in the third opening 34, and the first trunk regions can be arranged in the fourth opening 44, which helps improve the space utilization of the wiring substrate 2000.

[0074] As shown in FIG3A , when two first trunk regions 31, each belonging to two adjacent first regions 30 and having the smallest distance between them along the second direction Y, are located within the fourth opening 44 of the same second region 40, and two second trunk regions 41, each belonging to two adjacent second regions 40 and having the smallest distance between them along the second direction Y, are located within the third opening 34 of the same first region 30, to maximize space utilization of the substrate 2100, a third region 70 can be provided between the first region 30 and the second region 40 closest to the edge in the second direction Y. The third region 70 is located between the first trunk region 31 and the second trunk region 41 closest to the edge in the second direction Y. The third region 70 is connected to the first region 30 and to the second region 40 via connecting structures 62. A through-hole 61 is provided between two adjacent connecting structures 62 to reduce the connection area between the third region 70 and the first region 30 and between the third region 70 and the second region 40, thereby facilitating subsequent separation of the third region 70 from the first region 30 and the second region 40.

[0075] Exemplarily, the two outermost sides of the substrate 2100 along the second direction Y may be the first region 30 or the second region 40, respectively. For example, as shown in FIG3A , both the upper and lower sides of the substrate 2100 along the second direction Y are the first region 30. Alternatively, as shown in FIG3B , the upper side of the substrate 2100 along the second direction Y is the first region 30, and the lower side is the second region 40. Of course, both sides of the substrate 2100 along the second direction Y may also be the second region 40 (not shown in the figure); or the upper side may be the second region 40, and the lower side may be the first region 30 (not shown in the figure).

[0076] Continuing to refer to FIG3A and FIG4 , a plurality of through-holes 61 are provided between adjacent first and second regions 30, 40, 30, 40, 40, and 70, respectively. A connecting structure 62 is provided between two adjacent through-holes 61. The connecting structure 62 is used to connect and secure the adjacent first and second regions 30, 40, 30, 40, 30, 40, and 40. The connecting structure 62 connects the first, 40, and 70 to form a single entity, facilitating the provision of a routing layer on the first and second regions 30, 40, and 40 of the substrate 2100 during the preparation of the wiring substrate. The connection structures 62 pass through the substrate 2100 through the through holes 61, which is beneficial to reducing the contact area between the first region 30, the second region 40 and the third region 70, and facilitating the separation of the first region 30 and the second region 40 in the subsequent preparation process to form independent structural parts.

[0077] In some embodiments, as shown in FIG3A and FIG4 , each first trunk region 31 of the first region 30 and each second trunk region 41 of the second region 40 are provided with a plurality of first electronic components 50 spaced apart along the first direction X. For example, the first electronic components 50 are provided in the middle of the first trunk region 31 and the middle of the second trunk region 41 along the second direction Y. The width of the connection structure 62 in a direction perpendicular to the boundary of the first region 30 or the second region 40 to which the connection structure 62 is connected is M.

[0078] Illustratively, along the extending direction of the edge of the first region 30 or the second region 40, the length of the through hole 61 is greater than the length of the connecting structure 62. Along a direction perpendicular to the edge of the first region 30 or the second region 40 where the connecting structure 62 is located, the width of the connecting structure 62 is M, which can be 1 mm to 2 mm. For example, within the interval between the first trunk region 31 and the second trunk region 32 along the second direction Y, the width M of the connecting structure 62 along the second direction Y ranges from 0 to 2 mm. Within the interval between the first trunk region 31 and the second trunk region 32 along the first direction X, the width M of the connecting structure 62 along the first direction X ranges from 0 to 2 mm. For example, the width M of the connecting structure 62 is 1 mm, 1.5 mm, or 2 mm, etc.

[0079] The line connecting the geometric centers of the first electronic components 50 in any first trunk area 31 or second trunk area 41 coincides with the center line of the first trunk area 31 or second trunk area 41 along the first direction X. y , D2 and M satisfy D2=(D y -3M) / 3, or D y =3D2+3M. As shown in FIG4 , the distance between two adjacent first electronic components 50 along the second direction Y on two first trunk regions 31 belonging to the same first area 30 is equal to the sum of the size of one first trunk region 31 along the second direction Y (2×(1 / 2×D2)), the sizes of the two second trunk regions 41 along the second direction Y (2×D2), and the sizes of the three connecting structures 62 along the second direction Y (3M).

[0080] The distance between two adjacent first electronic components 50 along the first direction X on two first trunk areas 31 belonging to the same first region 30 is also D x , or the distance between two first electronic components 50 adjacent to each other along the first direction X on two second trunk areas 41 belonging to the same second area 40 is also D x Furthermore, the distribution density of the first electronic components 50 in the first direction X and the second direction Y can be made the same, that is, D x＝ D y Of course, the distribution density of the first electronic components 50 in the first direction X and the second direction Y may also be different, and the present disclosure does not limit this.

[0081] As shown in Figures 3A and 4 , each first trunk area 31 of the first region 30 and each second trunk area 41 of the second region 40 is provided with a plurality of driving elements 51. The driving elements 51 are configured to control at least one first electronic component 50 in the same region (e.g., the same first trunk area 31 or the same second trunk area 42). For example, where the first electronic component 50 is a light-emitting element (e.g., a Mini-LED chip), the driving element 51 may be a micro-integrated circuit chip. One driving element 51 may control multiple light-emitting elements. The multiple light-emitting elements may be connected in series, in parallel, or in a combination of series and parallel, or the multiple light-emitting elements may be independent, without specific limitation herein.

[0082] In some embodiments, as shown in FIG4 , each first trunk region 31 of the first region 30 and each second trunk region 41 of the second region 40 is provided with a plurality of fixing holes 52. The fixing holes 52 are used to securely connect the structural member formed by the wiring substrate 2000 to other components, such as the structural member to the backplane. The wiring substrate further includes a packaging adhesive (not shown), each of which covers a first electronic component 50 to protect the first electronic component 50.

[0083] In other embodiments, referring to FIG. 5 , the second interval D5 is greater than the dimension D2 of the second trunk region 41 along the second direction Y, and less than or equal to 1.5 times the dimension D2 of the second trunk region 41 along the second direction Y, i.e., D2 < D5 ≤ 1.5D2. In this case, one second trunk region 41 of the second region 40 is located within the third opening 34 of one first region 30, and another second trunk region 41 is located between two adjacent first regions 30. In other words, only one second trunk region 41 is disposed within each third opening 34.

[0084] The third interval D6 is greater than the dimension D2 of the first trunk region 31 along the second direction Y, and is less than or equal to 1.5 times the dimension D2 of the first trunk region 31 in the second direction, i.e., D2 < D6 ≤ 1.5D2. In this case, one first trunk region 31 of the first region 30 is located within the fourth opening 44 of one second region 40, and another first trunk region 31 is located between two adjacent second regions 40. In other words, only one first trunk region 31 is disposed within each fourth opening 44.

[0085] D2<D5≤1.5D2, and D2<D6≤1.5D2, not only can a second trunk area 41 be set in the third opening 34 and a first trunk area 31 be set in the fourth opening 44, but it is also beneficial to set a gap between the first trunk area 31 and the second trunk area 41, which is beneficial to subsequently separate the first area 30 and the second area 40 from the gap between the first trunk area 31 and the second trunk area 41.

[0086] In other embodiments, referring to FIG. 5 , a line connecting the geometric centers of the plurality of first electronic components 50 located in any first trunk area 31 or second trunk area 41 coincides with the midline of the first trunk area 31 or second trunk area 41 along the first direction X, and D y , D2 and M satisfy D2=(D y -2M) / 2, or D y =2D2+2M. As shown in FIG5 , the distance between two adjacent first electronic components 50 along the second direction Y on two first trunk areas 31 belonging to the same first region 30 is also D y , and is equal to the sum of the size of a first trunk area 31 along the second direction Y (1 / 2×D2), the size D2 of a second trunk area 41 along the second direction Y, and the size of two connecting structures 62 along the second direction Y (2M).

[0087] The size of the first trunk area 31 along the second direction Y and the size of the second trunk area 41 along the second direction Y are both D2. Thus, the interval between two adjacent first electronic components 50 along the second direction Y on two first trunk areas 31 belonging to the same first region 30 is also D. y , or the distance between two first electronic components 50 adjacent to each other along the second direction Y on two second trunk areas 41 belonging to the same second region 40 is also D y Thus, the distribution density of the first electronic components 50 in the first direction X and the second direction Y is made the same.

[0088] For example, referring to FIG. 5 , a plurality of through-holes 61 are provided between adjacent first and second regions 30 and 40, and a connecting structure 62 is provided between two adjacent through-holes 61. The connecting structure 62 is used to connect and secure the adjacent first and second regions 30 and 40. The connecting structure 62 connects the first and second regions 30 and 40 into a single entity, facilitating wiring on the first and second regions 30 and 40 of the substrate 2100 during the wiring substrate fabrication process. The connecting structures 62 extend through the substrate 2100 via the through-holes 61, thereby reducing the contact area between the first and second regions 30 and 40 and facilitating the subsequent separation of the first and second regions 30 and 40 during fabrication to form independent structural components. The plurality of through-holes 61 and the plurality of connecting structures 62 together constitute a fourth region 60, which separates two adjacent first regions 30 and / or second regions 40, allowing any first region 30 and any second region 40 to be subsequently separated from within the fourth region 60 to form independent structural components.

[0089] The embodiments of the present disclosure further provide a structural member 3000. Referring to FIG6 , the structural member 3000 can be formed by cutting the wiring substrate described in any of the above embodiments, wherein any first region 30 and any second region 40 on the wiring substrate independently form a structural member.

[0090] The structural member 3000 may include two main body parts 310, a connecting part 320 and two first binding parts 330. Both main body parts 310 extend along the first direction X and have a first interval D7 along the second direction Y. Each main body part 310 includes a plurality of first electronic components 50 spaced apart along the first direction X. The connecting part 320 extends along the second direction Y, and the two ends of the connecting part 320 are respectively connected to the ends of the two main body parts 310 located on the same side (such as the right side in Figure 6). The two first binding parts 330 are respectively connected to the ends of the two main body parts 310 away from the connecting part 320 (the left end in Figure 6), and the first binding part 330 is configured to be connected to the connector. That is, the structural member 3000 is a U-shaped structural member. Compared with a linear structural member, when the U-shaped structural member is assembled to form a light-emitting substrate, the use of connectors can be reduced, thereby reducing the preparation cost of the light-emitting substrate.

[0091] As shown in Figure 6, the main body 310 also includes multiple driving elements 51 and fixing holes 52. The driving elements 51 are used to drive at least one first electronic component 50 in the same area (such as the same main body 310), and the fixing holes 52 are used to fix the structural member 3000 to other components, such as fixing the structural member 3000 to the back panel.

[0092] The binding portion 330 of the U-shaped structural member is arranged at one end of the main body 310 away from the connecting portion 320. When multiple structural members are assembled to form a light-emitting substrate, the multiple structural members can be arranged in an S shape and connected in sequence through connectors (as shown in Figure 7). This can reduce the spacing between interconnected structural members and reduce the minimum spacing between adjacent first electronic components. When the number of first electronic components included in the dimming partition remains unchanged, the dimming partition area of ​​the light-emitting substrate can be reduced, thereby improving the dimming accuracy of the light-emitting substrate.

[0093] For example, when the aforementioned structural member is formed in the first region of the wiring substrate, each first trunk region of the first region forms a main body portion, the first connection region forms a connection portion, and each first binding region forms a binding portion. When the aforementioned structural member is formed in the second region of the wiring substrate, each second trunk region of the second region forms a main body portion, the second connection region forms a connection portion, and each second binding region forms a binding portion. Because the first and second regions have the same size and shape, the structural members formed in the first and second regions have the same structure.

[0094] In some embodiments, the interval between two adjacent first electronic components 50 along the second direction Y is D y , the size of the main body 310 along the second direction Y is D2. y and D2 meets :D y =3D2+3M; the value range of M is 0~2mm, the structural component can be prepared by the wiring substrate described in the above embodiment, and the arrangement density of the first area and the second area on the wiring substrate can be improved, the space utilization of the wiring substrate can be improved, and the preparation cost of the structural component 3000 can be reduced.

[0095] Structural member 3000 may be an aluminum-based structural member. The aluminum-based structural member includes a wiring layer (copper layer) for designing a circuit structure. This wiring layer is electrically connected to the first electronic component 50 and other electronic components (such as the driver component 52) ​​on the structural member 3000, thereby transmitting electrical signals to the first electronic component 50 and other electronic components. Using an aluminum-based structural member helps reduce the manufacturing cost of the structural member 3000.

[0096] 7 , an embodiment of the present disclosure further provides a light-emitting substrate 110. The light-emitting substrate 110 includes a back panel 111 and at least one structural component assembly 500 disposed on the back panel 111. The structural component assembly 500 includes a plurality of first structural components 510, a plurality of first connectors 520, a plurality of second structural components 530, and a second connector 540.

[0097] It is understood that the multiple first structural members 510 and the multiple second structural members 530 can all be the structural members described in the above embodiment. In other words, the first structural members 510 and the second structural members 530 have the same structure. In Figure 7, the first structural members 510 and the second structural members 530 use different fill patterns, which only distinguish their arrangement positions. When the structural members 3000 are used to assemble to form the light-emitting substrate 110, the first electronic components 50 included in the first structural members 510 and the second structural members 530 are both light-emitting components. The structure and type of the light-emitting components are described above and will not be repeated here.

[0098] A plurality of first structural members 510 are spaced apart on the back panel 111 along the second direction Y. Each first structural member 510 has a first opening 511 oriented from left to right in FIG7 . Each first structural member 510 has a first binding portion (not shown) and a first connector 520 .

[0099] The plurality of second structural members 530 are spaced apart on the back panel 111 along the second direction Y, and the plurality of first structural members 510 and the plurality of second structural members 530 are arranged side by side along the first direction X. Each second structural member 530 has a second opening 521, and the second opening 521 is oriented from right to left in Figure 7. The first binding portion 330 of each second structural member 530 is connected to a second connector 540.

[0100] The orientation of the first opening 511 is opposite to that of the second opening 521, so that the first binding portion 330 of the first structural member 510 and the first binding portion 330 of the second structural member 530 are arranged opposite each other, and the first connector 520 connected to the first structural member 510 and the second connector 540 connected to the second structural member 530 are plugged into each other. The first structural member 510 and the second structural member 530 are connected via the first connector 520 and the second connector 540, which helps reduce the difficulty of assembling the first structural member 510 and the second structural member 530 and improves assembly efficiency. Moreover, only a pair of interconnected first connectors 520 and second connectors 540 are required to connect the first structural member 510 and the second structural member 530. Compared with the prior art, the first structural member 510 and the second structural member 530 can be connected with one pair of interconnected first connectors 520 and second connectors 540, which helps reduce the distance between the two first electronic components 50 that belong to the first structural member 510 and the second structural member 530 and are closest to each other along the first direction X. Moreover, according to the calculation of the dimensions of connectors of the same size in the relevant technology, the spacing between the two electronic components 50 can be reduced from 52mm to 34.4mm, which can accommodate light-emitting substrates with smaller spacing between light-emitting components. In some other embodiments, the spacing between the two electronic components 50 that belong to the first structural member 510 and the second structural member 530 and are closest to each other along the first direction X can be reduced by reducing the dimensions of the first connector 520 and the second connector 540. In this way, the spacing between two adjacent first electronic components 50 can be further reduced while other conditions remain unchanged, that is, a light-emitting substrate with a smaller component spacing dimension can be realized. In addition, the above-mentioned first structural member 510 and the second structural member 530 can still be prepared using aluminum-based structural members, reducing the preparation cost of the light-emitting substrate.

[0101] It can be understood that in order to make the distribution density of the light-emitting elements on the light-emitting substrate uniform and the luminous intensity of different areas equal or approximately equal, the interval between the two first electronic elements 50 that belong to the first structural member 510 and the second structural member 530 and are closest to each other along the first direction X, and the interval D between the two adjacent first electronic elements 50 on the first structural member 510 or the second structural member 530 along the first direction X are respectively xThe interval D between two adjacent first electronic components 50 along the second direction Y on the first structural member 510 or the second structural member 530 is equal; y , along the first direction Y, the interval between the two first electronic components 50 that belong to two adjacent first structural members 510 along the second direction Y and are closest to each other along the second direction Y, the interval between the two first electronic components 50 that belong to two adjacent second structural members 530 along the second direction Y and are closest to each other along the second direction Y, and the interval between the first electronic component 50 and the second electronic component 553 that belong to the second structural member 530 and the third structural member 550 that are adjacent to each other along the second direction Y and are closest to each other along the second direction Y are equal.

[0102] In some embodiments, the first connector 520 and the second connector 540 may be board-to-board connectors (BTB connectors). The first connector 520 and the second connector 540, which are connected to each other, have the same number of connection terminals and are adapted and fixed together by plugging. For example, one of the first connector 520 and the second connector 540 is a male connector, and the other is a female connector.

[0103] As shown in FIG7 , two first connectors 520 that are respectively connected to two adjacent first structural members 510 and have the smallest distance along the second direction Y are respectively connected to two second connectors 540 connected to the same second structural member 530. For example, in FIG7 , from top to bottom, of the four first connectors 520 connected to the first first structural member 510 and the second first structural member 510, the middle two first connectors 520 are respectively connected to the two second connectors 540 connected to the first second structural member 530.

[0104] The two second connectors 540 that are respectively connected to two adjacent second structural members 530 and have the smallest distance therebetween along the second direction Y are respectively connected to the two first connectors 520 connected to the same first structural member 510. For example, in FIG7 , from top to bottom, of the four second connectors 540 connected to the first second structural member 530 and the second second structural member 530, the middle two second connectors 540 are respectively connected to the two first connectors 520 connected to the second first structural member 510. In this way, the first structural member 510 and the second structural member 530 having a connection relationship can be connected only through a first connector 520 and a second connector 540, and there is no need to set up a transfer circuit board, which is beneficial to reducing the distance between the first structural member 510 and the second structural member 530 along the first direction X, thereby reducing the interval between the two first electronic components that belong to the first structural member 510 and the second structural member 530 respectively and are closest to each other along the first direction, thereby reducing the interval between the first electronic components. When the number of first electronic components included in the dimming zone remains unchanged, the area of ​​the dimming zone can be reduced, and the dimming accuracy of the light-emitting substrate 110 can be improved.

[0105] 7 , the number of the first structural members 510 is one more than the number of the second structural members 530. The structural member assembly 500 further includes two third structural members 550 and an outlet connector 560.

[0106] Referring to Figures 7 and 8, the two third structural members 550 are respectively located on both sides of the plurality of second structural members 530 along the second direction Y, and both third structural members 550 extend along the first direction X. The third structural member 550 is provided with a second binding portion 551 at one end close to the first structural member 510, and a third binding portion 552 at one end away from the first structural member 510. The second binding portion 551 is connected to the second connector 540, and is connected to the first connector 520 connected to the plurality of first structural members 510 and located at the outermost side in the second direction Y through the second connector 540. The outgoing line connector 560 is connected to the third binding portion 552. Based on this, the plurality of first structural members 510, the plurality of second structural members 530, and the two third structural members 550 together can form a light-emitting substrate with a regular shape (e.g., a rectangle).

[0107] In other embodiments, as shown in FIG11 , the number of the second structural members 530 is one more than the number of the first structural members 510 . The structural member assembly further includes two third structural members 550 and an outlet connector 560 .

[0108] Referring to Figures 8 and 11, the two third structural members 550 are respectively located on both sides of the multiple first structural members 510 along the second direction Y, and the two third structural members 550 extend along the first direction X. The third structural member 550 is provided with a second binding portion 551 at one end close to the second structural member 530, and a third binding portion 552 at one end away from the second structural member 530. The second binding portion 551 is connected to the first connector 520, and is connected to the second connector 540 connected to the multiple second structural members 530 and located at the outermost side in the second direction Y through the first connector 520. The output connector 560 is connected to the third binding portion 552. Based on this, the multiple first structural members 510, the multiple second structural members 530 and the two third structural members 550 can form a light-emitting substrate with a regular shape (rectangular). It can be understood that the output connector can be a patch connector, and the patch connector is welded to the third binding portion 552.

[0109] In some embodiments, as shown in FIG8 , the third structural member 550 includes a plurality of second electronic components 553 spaced apart along a first direction X. The spacing between two adjacent second electronic components 553 is equal to the spacing between two adjacent first electronic components 50 in the first structural member 510 and the second structural member 530. In other words, the distribution density of the second electronic components 553 is the same as the distribution density of the first electronic components 50. This helps ensure uniform light output from the light-emitting substrate when the third structural member 550 is used in conjunction with the first structural member 510 and the second structural member 530 to form a light-emitting substrate. The second electronic components 553 can be light-emitting components, for example, the second electronic components 553 and the first electronic components 50 are the same type of light-emitting components.

[0110] For example, the dimension of the third structural member 550 along the second direction Y may be the same as the dimension of the main body of the structural member 3000 along the second direction Y, that is, the dimension of the third structural member 550 along the second direction Y is D2. Of course, in other embodiments, the dimension of the third structural member 550 along the second direction Y may be the same as or different from the dimension of the main body along the second direction Y. For example, the dimension of the third structural member 550 along the second direction Y may be greater than the dimension of the main body along the second direction Y, or the dimension of the third structural member 550 along the second direction Y may be smaller than the dimension of the main body along the second direction Y.

[0111] As shown in FIG8 , similar to the first structural member 510 and the second structural member 530 , the third structural member 550 may further include a plurality of driving elements 51 and fixing holes 52. The driving element 51 is used to drive at least one second electronic component 553 on the third structural member 550, and the fixing holes 52 are used to mount the third structural member 550 on the backplane.

[0112] In some embodiments, the third structural member 550 is an aluminum-based structural member, which helps reduce the cost of the third structural member 550. The aluminum-based structural member includes a wiring layer. Based on this, referring to FIG9 , the outgoing connector 560 and the second electronic component 553 are disposed on a surface of the third structural member 550 away from the back plate 111.

[0113] In other embodiments, the third structural member 550 is an epoxy board (FR4) structural member. The epoxy board structural member may include a double-layer wiring layer, located on opposite sides of the substrate layer. The two wiring layers may be electrically connected through vias. Referring to FIG. 10 , the second electronic component 553 is disposed on the surface of the third structural member 550 away from the backplane 111, and the output connector 560 is disposed on the surface of the third structural member 550 closer to the backplane 111. In this way, the output connector 560 can be disposed on the backlight side of the third structural member 550 (away from the second electronic component 553), thereby preventing the output connector 560 from blocking the light emitted by the second electronic component 553.

[0114] For example, when the spacing between the second electronic components 553 is small (e.g., 30 mm to 50 mm), the third structural member 550 can be an epoxy board structural member, which can effectively prevent the outlet connector 560 from blocking the light emitted by the second electronic components 553. When the spacing between the first electronic components 50 is large (e.g., >50 mm), the third structural member 550 can be an aluminum-based structural member. In this way, the manufacturing cost of the third structural member 550 can be reduced, provided that the outlet connector 560 does not block the light emitted by the second electronic components 553.

[0115] In some embodiments, at least one of the first structural member 510 and the second structural member 530 is an aluminum-based structural member. For example, the first structural member 510 and the second structural member 530 are both aluminum-based structural members. Compared to the first structural member 510 and the second structural member 530 being epoxy-based structural members, the first structural member 510 and the second structural member 530 being both aluminum-based structural members can reduce the production cost of the light-emitting substrate.

[0116] 12 , the back panel 111 includes a plurality of avoidance holes 101 , and each outlet connector 560 is disposed in an avoidance hole 101 , which can prevent the outlet connector 560 from interfering with the back panel 111 and can lead the outlet connector 560 to the side of the back panel away from the structural component assembly 500 .

[0117] Continuing to refer to FIG12 , the light-emitting substrate 110 further includes a driving circuit board 570 and a circuit board 580. The driving circuit board 570 is disposed on a surface of the back plate 111 away from the third structural member 550 (structural member group 500). One end of the circuit board 580 is connected to the driving circuit board 570, and the other end is connected to the output connector 560. For example, the driving circuit board 570 can be a flexible printed circuit (FPC) or a printed circuit board (PCB), and the circuit board 580 can be a flexible flat cable (FFC). The driving circuit board 570 transmits a control signal to the structural member group 500 through the circuit board 580 to control the structural member group 500 to emit light.

[0118] In some embodiments, the light-emitting substrate 110 includes multiple structural component groups 500 arranged along the second direction Y. FIG7 illustrates an example in which the light-emitting substrate 110 includes two structural component groups 500. It is understood that the light-emitting substrate 110 may also include any number of structural component groups 500, such as one (as shown in FIG11 ), three, or five, and these numbers are not listed here. Multiple third structural components 550, each belonging to a different structural component group 500, are arranged at intervals along the second direction Y. Thus, the outgoing connectors 560 connected to all of the structural component groups 500 are arranged in the second direction Y, which helps reduce the difficulty of installing the circuit board 580 and the outgoing connectors 560.

[0119] In some embodiments, referring to FIG. 13 , the first electronic component 50 of the first structural member 510 and the second structural member 530, as well as the second electronic component 553, are all light-emitting elements 112. The angle between the maximum light-emitting angle of the light-emitting element and the normal direction N of the light-emitting element is α. The luminous intensity corresponding to the light emitted from the light-emitting element 112 along the normal direction N of its light-emitting surface S is defined as 1, and the luminous intensity of the light emitted along the maximum light-emitting angle in this direction is half the luminous intensity of the light emitted along the normal direction N.

[0120] The thickness of the first connector 520 is T1, and the minimum spacing between the first connector 520 and the light-emitting element 112 closest to the first connector 520 is L1. The light-emitting element 112 closest to the first connector 520 is the light-emitting element 112 on the first structural member 510 closest to the first binding portion 330. The minimum spacing between the first connector 520 and the light-emitting element 112 is the minimum spacing between the contours of the orthographic projection of the first connector 520 and the light-emitting element 112 on the surface of the first structural member 510 away from the backplane 111. Where T1 ≤ L1 × tan(90° - α), this greatly reduces the obstruction of light emitted by the light-emitting element 112 by the first connector 520, thereby reducing the risk of shadows on the light-emitting substrate.

[0121] The thickness of the second connector 540 is T2, and the minimum distance between the second connector 540 and the light-emitting element 112 closest to the second connector 540 is L2, where T2≤L2×tan(90°-α). In this way, the second connector 540 can greatly reduce the obstruction of the light emitted by the light-emitting element 112, thereby reducing the risk of shadows on the light-emitting substrate.

[0122] Some embodiments of the present disclosure also provide a method for assembling a light-emitting substrate. The following exemplifies the method for assembling a light-emitting substrate by taking the light-emitting substrate shown in FIG7 as an example. First, connect the first structural member and the first connector to form a first component, connect the second structural member and the second connector to form a second component, and connect the third structural member and the second connector and the outlet connector to form a third component. Then, install the third component on the backplane through the fixing hole. Plug a first connector of a first component into the second connector of the third structural member, and install and fix the first component on the backplane. Then, plug a second connector of the second component into another first connector of the above-mentioned first component, and install and fix the second component on the backplane, and so on. Finally, take another third structural member, plug the second connector of the third component into the first connector of the last first component, and install and fix the third component on the backplane to complete the assembly of a structural member group. Follow the above steps to install another structural member group.

[0123] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that a person skilled in the art can conceive within the technical scope disclosed in the present disclosure should be included within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A structural member, comprising: Two main bodies, both of which extend along a first direction and have a first interval along a second direction, each of which includes a plurality of first electronic components spaced apart along the first direction; the first direction and the second direction intersect each other; A connecting portion extending along the second direction, and two ends of the connecting portion are respectively connected to the ends of the two main bodies located on the same side; The two first binding parts are respectively connected to the ends of the two main parts away from the connecting part, and are configured to be connected to the connector.

2. The structural member according to claim 1, wherein: The distance between two adjacent first electronic components along the second direction is D y , a dimension of the main body along the second direction is D2; Among them, D y And D2 meets: D y =3D2+3M; the value range of M is 0~2mm.

3. The structural member according to claim 1, wherein: The distance between two adjacent first electronic components along the second direction is D y , a dimension of the main body along the second direction is D2; Among them, D y And D2 meets: D y =2D2+2M; the value range of M is 0~2mm.

4. The structural member according to any one of claims 1 to 3, wherein: The structural member is an aluminum-based structural member.

5. A light-emitting substrate, comprising a back plate and at least one structural component group arranged on the back plate, wherein the structural component group comprises: A plurality of first structural members, each of which comprises a structural member according to any one of claims 1 to 4, the plurality of first structural members are arranged on the back plate at intervals along the second direction, and each first structural member has a first opening; A plurality of first connectors, each first binding portion of the first structural member is connected to a first connector; a plurality of second structural members, each of the second structural members comprising a structural member according to any one of claims 1 to 4, the plurality of second structural members being arranged on the back plate at intervals along the second direction, each second structural member having a second opening, and the direction of the first opening being opposite to the direction of the second opening; A plurality of second connectors, each first binding portion of the second structural member is connected to a second connector; Among them, two first connectors that are respectively connected to two adjacent first structural members and have the smallest distance along the second direction are respectively connected to two second connectors connected to the same second structural member; two second connectors that are respectively connected to two adjacent second structural members and have the smallest distance along the second direction are respectively connected to two first connectors connected to the same first structural member.

6. The light emitting substrate according to claim 5, wherein: The number of the first structural members is one more than the number of the second structural members; and the structural member group further includes: Two third structural members are respectively located on both sides of the plurality of second structural members along the second direction, and the two third structural members extend along the first direction, and the third structural member is provided with a second binding portion at one end close to the first structural member and a third binding portion at one end away from the first structural member; the second binding portion is connected to the second connector, and connected through the second connector and a first connector connected to the plurality of first structural members and located at the outermost side in the second direction; An outlet connector is connected to the third binding portion.

7. The light-emitting substrate according to claim 5, wherein: The number of the second structural members is one more than the number of the first structural members; and the structural member group further includes: Two third structural members, respectively located at both sides of the plurality of first structural members along the second direction, and the two third structural members both extend along the first direction, the third structural member having one end close to the second structural member provided with a second binding portion, and one end away from the second structural member provided with a third binding portion; the second binding portion is connected to the first connector, and is connected to a second connector connected to the plurality of second structural members and located at the outermost side along the second direction through the first connector; An outlet connector is connected to the third binding portion.

8. According to the light-emitting substrate of claim 6 or 7, the third structural member comprises a plurality of second electronic components spaced apart along the first direction, and the interval between two adjacent second electronic components is equal to the interval between two adjacent first electronic components in the first structural member and the second structural member.

9. The light emitting substrate according to claim 8, wherein: The third structural member is an aluminum-based structural member, and the outlet connector and the second electronic component are arranged on a surface of the third structural member away from the back plate.

10. The light emitting substrate according to claim 8, wherein: The third structural member is an epoxy board structural member, the second electronic component is arranged on a surface of the third structural member away from the back plate, and the outlet connector is arranged on a surface of the third structural member close to the back plate; The back plate includes a plurality of avoidance holes, and each of the outlet connectors is arranged in one of the avoidance holes.

11. The light emitting substrate according to claim 10, wherein: The light-emitting substrate also includes: A driving circuit board is arranged on a surface of the back plate away from the third structural member; A circuit board has one end connected to the driving circuit board and the other end connected to the output connector.

12. The light emitting substrate according to any one of claims 6 to 11, wherein The light emitting substrate includes a plurality of structural component groups arranged along the second direction; a plurality of third structural components belonging to different structural component groups are arranged at intervals in the second direction.

13. The light emitting substrate according to any one of claims 5 to 12, wherein The first electronic element and the second electronic element of the first structural member and the second structural member are all light-emitting elements; the angle between the maximum light-emitting angle of the light-emitting element and the normal direction of the light-emitting element is α; The thickness of the first connector is T1, and the distance between the first connector and the light emitting element closest to the first connector in the first direction is L1, wherein T1≤L1×tan(90°-α); The thickness of the second connector is T2, and the distance between the second connector and the light emitting element closest to the second connector in the first direction is L2, wherein T2≤L2×tan(90°-α).

14. A backlight module, comprising: The light-emitting substrate according to any one of claims 5 to 13, wherein the first electronic components of the first structural member and the second structural member, and the second electronic component of the third structural member all include light-emitting components.

15. A display device, comprising: The backlight module as claimed in claim 14; The display panel is arranged on the light emitting side of the backlight module.

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