Sub-display panel assembly and splicing display device

Abstract

This disclosure provides a sub-display panel assembly, comprising: a display substrate; a fixing frame, including: a base plate having a supporting surface and a mounting surface disposed opposite to each other, the supporting surface being configured to support the display substrate; and a first circuit board located on the side of the base plate away from the display substrate, comprising: a first circuit board body, the first circuit board body being connected to the mounting surface of the base plate via an elastic component, the elastic component being configured to support the first circuit board body and allow the first circuit board body to move relative to the base plate. Embodiments of this disclosure also provide a splicing display device.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a sub-display panel assembly and a splicing display device. Background Technology

[0002] Large display screens are typically composed of multiple sub-display panel assemblies arranged in a matrix. The images displayed on each sub-display panel are combined to form the overall image of the large display screen. A sub-display panel assembly generally includes a display substrate, a fixing frame, and a first circuit board. The fixing frame is used to support and fix the display substrate, and the first circuit board can be connected to the display substrate via an FPC.

[0003] When fixing multiple sub-display panel assemblies to the carrier housing for use as a splicing display device, it is necessary to align and connect the first circuit board in the sub-display panel assembly with the second circuit board on the carrier housing, so that the multiple first connection terminals of the first connector on the first circuit board can contact the multiple second connection terminals of the second connector on the second circuit board, thereby ensuring that the second circuit board can provide working voltage and display signals to the first circuit board. The first circuit board transmits the received working voltage and display signals to the display substrate through the FPC, so that the display substrate can display the display image. Summary of the Invention

[0004] In a first aspect, embodiments of this disclosure provide a sub-display panel assembly, comprising:

[0005] Display substrate;

[0006] A fixed frame includes: a base plate having a support surface and a mounting surface disposed opposite to each other, the support surface being configured to support the display substrate;

[0007] A first circuit board, located on the side of the base plate away from the display substrate, includes: a first circuit board body, the first circuit board body being connected to the mounting surface of the base plate via an elastic component, the elastic component being configured to support the first circuit board body and enable the first circuit board body to move relative to the base plate.

[0008] In some embodiments, at least one first via is provided on the first circuit board body, and a corresponding second via is provided on the fixing frame at a position opposite to the first via;

[0009] The elastic component corresponds one-to-one with the first through hole, and the elastic component includes: a positioning element, which includes: a limiting part and a connecting part;

[0010] The limiting part is located on the side of the first circuit board body away from the display substrate. The length of the limiting part in the second direction is greater than the length of the first via in the second direction. The second direction is parallel to the plane where the mounting surface is located.

[0011] The connecting part passes through the first through hole, one end of the connecting part is connected to the limiting part, and the other end of the connecting part extends into the second through hole and is connected and assembled in the second through hole;

[0012] The elastic component further includes: a first elastic element and / or a second elastic element, wherein the first elastic element is located between the limiting portion and the first circuit board body, and the second elastic element is located between the base plate and the first circuit board body;

[0013] The first circuit board body is configured to move in a direction parallel to the normal of the base plate via the first elastic member and / or the second elastic member.

[0014] In some embodiments, the cross-sectional area of ​​the first via parallel to the display substrate is greater than the cross-sectional area of ​​the portion of the connection located within the first via parallel to the display substrate.

[0015] In some embodiments, the elastic component includes a first elastic member, and a first baffle is further provided between the first elastic member and the first circuit board. The length of the first baffle in the third direction is greater than the length of the corresponding first via in the third direction. A third via is provided on the first baffle, and the diameter of the third via is smaller than the diameter of the first via.

[0016] And / or, the elastic component includes a second elastic member, and a second baffle is further provided between the second elastic member and the first circuit board. The length of the second baffle in the third direction is greater than the length of the corresponding first via in the third direction. A fourth via is provided on the second baffle, and the diameter of the fourth via is smaller than the diameter of the first via.

[0017] The third direction is parallel to the plane where the mounting surface is located.

[0018] In some embodiments, the elastic component includes a first elastic element, which is fitted around the periphery of the connecting portion;

[0019] And / or, the elastic component includes a second elastic element, which is fitted around the periphery of the connection portion.

[0020] In some embodiments, the first elastic element includes a spring or a sheet spring;

[0021] The second elastic element includes a spring or a sheet.

[0022] In some embodiments, the second through hole is a screw hole, the positioning element is a screw, the limiting part is the screw nut, the connecting part is the screw shank, and the external thread of the connecting part is adapted to the internal thread of the second through hole.

[0023] In some embodiments, the number of the first vias is four, and the four first vias are located at the four corners of the first circuit board body.

[0024] In some embodiments, the first circuit board body is provided with a plurality of fifth vias, and the elastic component corresponds one-to-one with the fifth via. The elastic component includes: a fixing member and a third elastic member.

[0025] The fastener is fixed to the mounting surface, one end of the third elastic element is connected to the corresponding fifth through hole, and the other end of the third elastic element is connected to the fastener.

[0026] In some embodiments, the fastener includes: a fixing block and a connector;

[0027] The fixing block is provided with a sixth through hole and a seventh through hole. The seventh through hole connects to the sixth through hole from one surface of the fixing block, and the extension direction of the seventh through hole intersects with the extension direction of the sixth through hole.

[0028] The connector extends through the seventh through hole into the sixth through hole and is connected to the fixing block;

[0029] The end of the third elastic member away from the first circuit board body extends into the corresponding sixth via and is connected to the connector.

[0030] In some embodiments, the seventh through hole is a screw hole, the connector is a screw, and the internal thread of the seventh through hole is adapted to the external thread of the connector.

[0031] In some embodiments, the fixing block is integrally formed with the base plate.

[0032] In some embodiments, the number of the fifth vias is four, and the four fifth vias are respectively located at the four corners of the first circuit board body.

[0033] In some embodiments, the third elastic element includes a spring.

[0034] In some embodiments, the first circuit board further includes: a first connector located on the mounting surface, the first connector being used for assembly with a second connector on the carrier housing;

[0035] The first connector has a first connecting terminal and a first magnetic attraction structure on the side of its surface away from the mounting surface, and the second connector has a second connecting terminal and a second magnetic attraction structure.

[0036] The first connector and the second connector are configured such that they can be magnetically attracted by the first magnetic attraction structure and the second magnetic attraction structure, so that the first connection terminal and the corresponding second connection terminal come into contact.

[0037] In some embodiments, a plurality of first connection terminals are provided on the side surface of the first connector away from the mounting surface, and the plurality of first connection terminals constitute a first connection terminal array;

[0038] There are two first magnetic attraction structures, and the two first magnetic attraction structures are located on opposite sides of the first connection terminal array.

[0039] In some embodiments, the first circuit board further includes a plurality of third connectors located on the mounting surface and connected to the display substrate via a flexible circuit board.

[0040] In a second aspect, embodiments of this disclosure provide a splicing display device, including: a plurality of sub-display panel assemblies, wherein at least one of the sub-display panel assemblies adopts the sub-display panel assembly provided in the first aspect.

[0041] In some embodiments, the splicing display device further includes:

[0042] A support housing configured to support a plurality of the sub-display panel assemblies.

[0043] In some embodiments, the first circuit board further includes: a first connector, the first connector being located on the mounting surface, and a first connection terminal and a first magnetic attraction structure being provided on the side of the first connector away from the mounting surface;

[0044] The carrier housing is provided with a plurality of second circuit boards that correspond one-to-one with the sub-display panel assembly. The second circuit boards are provided with second connection terminals and second magnetic structures near the upper part.

[0045] The first connector and the second connector are configured such that they can be magnetically attracted by the first magnetic attraction structure and the second magnetic attraction structure, so that the first connection terminal and the corresponding second connection terminal come into contact. Attached Figure Description

[0046] Figure 1 A top view schematic diagram of a sub-display panel assembly provided in an embodiment of this disclosure;

[0047] Figure 2 for Figure 1 A schematic diagram of a sub-display panel assembly is shown.

[0048] Figure 3 for Figure 1 An exploded view of a sub-display panel is shown.

[0049] Figure 4 for Figure 1 A magnified structural diagram of the elastic component at point 3;

[0050] Figure 5 Another structural schematic diagram of the sub-display panel assembly provided in an embodiment of this disclosure;

[0051] Figure 6 for Figure 5 An exploded view of a sub-display panel assembly is shown.

[0052] Figure 7 This is an exploded view of a first connector on a first circuit board and a second connector on a second circuit board, according to an embodiment of this disclosure.

[0053] Figure 8 for Figure 2 The diagram shows a structural schematic of the assembly of a first circuit board on a sub-display panel and a second circuit board on a carrier housing.

[0054] Figure 9 for Figure 5 The diagram shows a structural schematic of the assembly of a first circuit board on a sub-display panel and a second circuit board on a carrier housing.

[0055] Figure 10 This is a schematic diagram of a splicing display device provided in an embodiment of the present disclosure. Detailed Implementation

[0056] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0057] The present disclosure will now be described in more detail with reference to the accompanying drawings. In the various drawings, the same elements are indicated by similar reference numerals. For clarity, not all parts in the drawings are drawn to scale. Furthermore, some well-known parts may not be shown in the drawings.

[0058] Many specific details of this disclosure, such as the structure, materials, dimensions, processing methods, and techniques of the components, are described below to provide a clearer understanding of the disclosure. However, as those skilled in the art will understand, this disclosure may be implemented without following these specific details.

[0059] The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, terms such as "including" or "comprising" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" between two structures include not only direct contact between two structures, but also indirect connection between two structures through other structures.

[0060] Furthermore, the "fixed" nature of the two structures in this disclosure merely indicates that the two structures are inseparable at a certain state or moment, but they may separate in other states or moments. For example, when a screw is screwed into a corresponding screw hole, the screw and the screw hole are fixed together, but the screw can also be screwed out of the screw hole to separate the screw from the screw hole.

[0061] Furthermore, in the description of the range A to B in this disclosure, the range is defined by the two endpoint values ​​A and B.

[0062] In related technologies, the first circuit board in the sub-display panel assembly is fixed to a fixing frame by screws, and no relative movement can occur between the first circuit board and the fixing frame after fixing. Specifically, some through holes are provided on the first circuit board, and multiple screw holes corresponding one-to-one with the through holes on the first circuit board are opened on the back of the base plate of the fixing frame. Screws are used to screw and fix the first circuit board to the base plate through the through holes and screw holes.

[0063] When assembling the sub-display panel assemblies involved in the relevant technology onto the carrier housing, due to assembly tolerances, as the number of sub-display panel assemblies installed on the carrier housing increases, the alignment deviation between the sub-display panel assemblies and the carrier housing becomes larger. This makes it difficult to align and connect the first connector of the first circuit board in the sub-display panel assembly with the second connector of the second circuit board on the carrier housing. For example, although the first connector of the first circuit board in the sub-display panel assembly can be aligned with the second connector of the second circuit board on the carrier housing, due to some reason, there is a certain gap between the first connector of the first circuit board and the corresponding second connector of the second circuit board in the normal direction of the display substrate. That is, the first connecting terminal on the first connector and the second connecting terminal on the second connector cannot achieve a reliable electrical connection. Or, for example, due to excessive accumulation of assembly tolerances, the first connector of the first circuit board in the sub-display panel assembly can never be aligned with the corresponding second connector of the second circuit board. In this case, when connecting and assembling the first connector of the first circuit board and the second connector of the second circuit board, the first connecting terminal on the first connector and the second connecting terminal on the second connector will be misaligned or even unable to make contact.

[0064] To effectively improve upon at least one of the technologies in the related art, embodiments of this disclosure provide a sub-display panel assembly.

[0065] Figure 1 This is a top view schematic diagram of a sub-display panel assembly provided in an embodiment of this disclosure. Figure 2 for Figure 1 The diagram shows a structural schematic of a sub-display panel assembly. Figure 3 for Figure 1 The diagram shown is an exploded view of one type of sub-display panel. Figure 4 for Figure 1 An enlarged structural diagram of the elastic component at point 3, as shown below. Figures 1 to 4 As shown, the sub-display panel assembly includes: a display substrate 10, a fixing frame 1, and a first circuit board. The fixing frame 1 includes: a base plate 4, which has a support surface and a mounting surface disposed opposite to each other; the support surface is configured to support the display substrate 10. The first circuit board is located on the side of the base plate 4 away from the display substrate 10. The first circuit board includes: a first circuit board body 2, which is connected to the mounting surface of the base plate 4 via an elastic component 3. The elastic component 3 is configured to support the first circuit board body 2 and allow the first circuit board body 2 to move relative to the base plate 4.

[0066] In this embodiment of the disclosure, when aligning and connecting the sub-display panel assembly with the carrier housing, since the first circuit board body 2 is connected to the base plate 4 through the elastic component 3, the first circuit board body 2 can adjust its position based on the elastic deformation of the elastic component 3. That is, the first circuit board has a certain position adjustment amount. When there is an alignment deviation between the first connector 5 of the first circuit board and the second connector 5' on the carrier housing, or when they cannot be connected due to the existence of a gap, the position of the first circuit board can be adjusted accordingly to eliminate the above-mentioned alignment deviation or gap, thereby ensuring that the first connector 5 of the first circuit board and the second connector 5' of the second circuit board can be correctly aligned and connected.

[0067] In some embodiments, the display substrate 10 includes: a carrier substrate, a plurality of light-emitting elements and at least one first connector; the light-emitting elements are fixed on the side of the carrier substrate away from the base plate 4, and the first connector is fixed on the side of the carrier substrate close to the base plate 4; the position adjustment structure corresponds one-to-one with the first connector, and the position adjustment structure is connected to the corresponding first connector.

[0068] In this embodiment, the carrier substrate can be an FR-type printed circuit board, consisting of an insulating layer, a connecting wire layer, and pads for mounting and soldering electronic components (e.g., light-emitting elements, driving elements, sensing elements, etc.). The insulating layer and connecting wire layer can be multi-layered, and connecting wires located on different layers can be connected through vias penetrating the insulating layer. It is understood that the carrier substrate can also be made of glass, plastic, quartz, metal, etc., and the carrier substrate has circuitry and pads for mounting and soldering electronic components (e.g., light-emitting elements, mini LEDs, or micro LEDs).

[0069] The light-emitting element can be a micro LED or a mini LED. The micro LED or mini LED can be mounted on the first side (generally referred to as the front side) of the carrier substrate through a die bonding process. A circuit board (which can be electrically connected to the first circuit board via an FPC) is provided on the second side (generally referred to as the back side) of the carrier substrate to provide electrical signals to the light-emitting element on the first side.

[0070] In some embodiments, at least one first via 201 is provided on the first circuit board body 2, and a corresponding second via 401 is provided on the fixed frame 1 at a position opposite to the first via 201; the elastic component 3 corresponds one-to-one with the first via 201, and the elastic component 3 includes: a positioning member 301a, and the positioning member 301a includes: a limiting part 301a_1 and a connecting part 301a_2.

[0071] The limiting part 301a_1 is located on the side of the first circuit board body 2 away from the display substrate 10. The length of the limiting part in the second direction is greater than the length of the first via 201 in the second direction. The second direction is parallel to the plane where the mounting surface is located (the second direction can be any direction parallel to the plane where the mounting surface is located). With the above arrangement, it can be ensured that the limiting part will not pass through the first via 201.

[0072] The connecting part 301a_2 passes through the first through hole 201. One end of the connecting part 301a_2 is connected to the limiting part 301a_1, and the other end of the connecting part 301a_2 extends into the second through hole 401 and is connected and assembled in the second through hole 401. The elastic component 3 also includes: a first elastic element 302a and / or a second elastic element 303a. The first elastic element 302a is located between the limiting part 301a_1 and the first circuit board body 2, and the second elastic element 303a is located between the base plate 4 and the first circuit board body 2.

[0073] exist Figure 3 and Figure 4 In the illustrated case, the elastic component 3 is shown to include both a first elastic element 302a and a second elastic element 303a. Based on the first elastic element 302a and the second elastic element 303a, the first circuit board body 2 can move in the normal direction (i.e., direction Z in the figure) of the display substrate 10.

[0074] It should be noted that the above-mentioned simultaneous provision of the first elastic member 302a and the second elastic member 303a is a preferred embodiment of the present disclosure. It allows the first circuit board body 2 to be located in the middle position of the connecting part 301a_2 of the positioning member 301a when there is no external force (referred to as the initial state). That is, in the initial state, the first circuit board body 2 can move either towards the display substrate 10 or away from the display substrate 10 to adapt to different application scenarios.

[0075] Those skilled in the art should know that in the embodiments of this disclosure, only the first elastic element 302a may be provided without the second elastic element 303a, or only the second elastic element 303a may be provided without the first elastic element 302a, and both can enable the first circuit board body 2 to move in the normal direction of the display substrate 10; these two situations should also fall within the protection scope of this disclosure.

[0076] In some embodiments, the cross-sectional area of ​​the first via 201 parallel to the display substrate 10 is greater than the cross-sectional area of ​​the portion of the connecting part located within the first via 201 parallel to the display substrate 10. That is, the first circuit board body 2 can move relative to the connecting portion 301a_2 of the positioning member 301a in a direction parallel to the plane of the display substrate 10; i.e., the first circuit board body 2 can move relative to the display substrate 10 in a direction parallel to the plane of the display substrate 10. Through the above arrangement, the first circuit board can move not only in the normal direction of the display substrate 10 (… Figure 2 , Figure 4 The position can be adjusted in the Z direction (in the middle) and also in the direction parallel to the plane where the display substrate 10 is located. That is, the first circuit board has a larger position adjustment range, which is beneficial to the positioning and connection assembly of the first connector 5 and the second connector 5'.

[0077] In some embodiments, the elastic component 3 includes a first elastic element 302a, and a first baffle 304a is further provided between the first elastic element 302a and the first circuit board. The length of the first baffle 304a in the third direction is greater than the length of the corresponding first via 201 in the third direction. A third via is provided on the first baffle 304a, and the diameter of the third via is smaller than the diameter of the first via. The third direction is parallel to the plane where the mounting surface is located (the third direction can be any direction parallel to the plane where the mounting surface is located).

[0078] By setting the first baffle 304a, the cross-sectional area of ​​the first elastic element 302a parallel to the mounting surface can be smaller than the cross-sectional area of ​​the first through hole 201 parallel to the mounting surface (but needs to be larger than the cross-sectional area of ​​the third through hole parallel to the mounting surface), which is beneficial to miniaturizing the first elastic element 302a.

[0079] In some embodiments, the elastic component 3 includes a second elastic member 303a, and a second baffle 305a is further provided between the second elastic member 303a and the first circuit board. The length of the second baffle 305a in the third direction is greater than the length of the corresponding first via in the third direction. A fourth via is provided on the second baffle 305a, and the diameter of the fourth via is smaller than the diameter of the first via.

[0080] By setting the second baffle 305a, the cross-sectional area of ​​the first elastic element 302a parallel to the mounting surface can be smaller than the cross-sectional area of ​​the first through hole parallel to the mounting surface (but needs to be larger than the cross-sectional area of ​​the fourth through hole parallel to the mounting surface), which is beneficial to miniaturizing the second elastic element 303a.

[0081] In some embodiments, the first / second baffles 304a and 305a may have an annular structure in cross-section parallel to the mounting surface.

[0082] In some embodiments, the elastic component 3 includes a first elastic member 302a, which is sleeved around the periphery of the connecting portion; and / or, the elastic component 3 includes a second elastic member 303a, which is sleeved around the periphery of the connecting portion.

[0083] In some embodiments, the first elastic element 302a includes a spring ( Figure 3 (as shown) or a spring (not shown); the second elastic element 303a includes a spring (shown in the figure) or a spring (not shown in the figure); Figure 3 (as shown in the figure) or a spring (not shown). In some embodiments, the spring used as the first elastic element 302a or the second elastic element 303a can be a cylindrical helical spring, which can withstand both tension and compression; the connecting portion 301a_2 of the positioning element 301a can pass through the hollow channel of the cylindrical helical spring to connect with the second through hole 401.

[0084] See also Figure 2 and Figure 3 As shown, in some embodiments, the second through hole 401 is a screw hole, the positioning member 301a is a screw, the limiting part 301a_1 is the screw nut, and the connecting part 301a_2 is the screw shank. The external thread of the connecting part is adapted to the internal thread of the second through hole 401. That is to say, the positioning member and the mounting surface of the base plate 4 in this disclosure can be fixed by screw connection, which facilitates the assembly and disassembly of the sub-display panel assembly.

[0085] In some embodiments, the cross-sectional profile of the first circuit board body 2 parallel to the mounting surface is approximately quadrilateral, and the number of first vias 201 is 4, with the 4 first vias 201 located at the four corners of the first circuit board body 2.

[0086] Of course, in this embodiment, the number of first vias can be other, such as one, two, three, or even more. The location of the first vias can also be set at other positions on the first circuit board body 2, such as on a side edge of the first circuit board body 2, or in the middle area of ​​the first circuit board body 2. This disclosure does not limit the number, location, or arrangement of the first vias.

[0087] Figure 5 This is another structural schematic diagram of the sub-display panel assembly provided in an embodiment of this disclosure. Figure 6 for Figure 5 An exploded view of a sub-display panel assembly is shown below. Figure 5 and Figure 6 As shown, unlike the previous embodiment where the elastic component 3 included a positioning element, in... Figure 4In the illustrated case, the first circuit board body 2 is provided with a plurality of fifth vias 202, and the elastic component 3 corresponds one-to-one with the fifth vias 202. The elastic component 3 includes: a fixing member 301b and a third elastic member 302b; wherein, the fixing member 301b is fixed to the mounting surface, one end of the third elastic member 302b is fixedly connected to the corresponding fifth via 202, and the other end of the third elastic member 302b is connected to the fixing member 301b.

[0088] exist Figure 5 In the case shown, the first circuit board can be adjusted in position not only in the normal direction of the display substrate 10, but also in the direction parallel to the plane where the display substrate 10 is located. That is, the first circuit board has a large position adjustment range, which is beneficial to the positioning and connection assembly of the first connector 5 and the second connector 5'.

[0089] In some embodiments, the fixing member 301b includes: a fixing block 3011 and a connecting member 3012; the fixing block 3011 is provided with a sixth through hole 3013 and a seventh through hole 3014, the seventh through hole 3014 communicates with the sixth through hole 3013 from one surface of the fixing block 3011, and the extension direction of the seventh through hole 3014 intersects with the extension direction of the sixth through hole 3013; the connecting member 3012 extends into the sixth through hole 3013 through the seventh through hole 3014 and is connected to the fixing block 3011; one end of the third elastic member 302b away from the first circuit board body 2 extends into the corresponding sixth through hole 3013 and is connected to the connecting member 3012.

[0090] In some embodiments, the seventh through hole 3014 is a screw hole, and the connector 3012 is a screw, with the internal thread of the seventh through hole 3014 matching the external thread of the connector 3012. This design facilitates the assembly and disassembly of the sub-display panel assembly.

[0091] In some embodiments, the fixing block 3011 is integrally formed with the base plate 4. That is, the fixing block 3011 and the base plate 4 can be manufactured simultaneously using the same process and form an integral structure. In some embodiments, the fixing frame 1 is an aluminum frame, and the fixing block 3011 is an aluminum block.

[0092] In some embodiments, the cross-sectional profile of the first circuit board body 2 parallel to the mounting surface is approximately quadrilateral, and the number of fifth vias 202 is 4, with the 4 fifth vias 202 located at the four corners of the first circuit board body 2.

[0093] Of course, in this embodiment, the fifth via 202 can be of other quantities, such as one, two, three, or even more. The fifth via 202 can also be located at other positions on the first circuit board body 2, such as on a side edge of the first circuit board body 2, or in the middle area of ​​the first circuit board body 2. This disclosure does not limit the number, location, or arrangement of the fifth via 202.

[0094] In some embodiments, the third elastic element 302b includes a spring. In some embodiments, the spring used as the third elastic element 302b can be a cylindrical helical spring. Cylindrical helical springs have a simple structure and are easy to manufacture.

[0095] Figure 7 This is an exploded view of a first connector on a first circuit board and a second connector on a second circuit board, according to an embodiment of this disclosure. Figure 8 for Figure 2 The diagram shows a structural schematic of the assembly of a first circuit board on a sub-display panel and a second circuit board on a supporting housing. Figure 9 for Figure 5 The diagram shows a structural schematic of the assembly of a first circuit board on a sub-display panel and a second circuit board on a supporting housing. Figures 1 to 3 , Figures 5 to 9 As shown, in some embodiments, the first circuit board further includes: a first connector 5, located on a mounting surface, for fixing and assembling the second connector 5' of the second circuit board 2' located on the carrier housing; a first connecting terminal 7 and a first magnetic attraction structure 6 are provided on the surface of the first connector 5 away from the mounting surface, and a second connecting terminal 7' and a second magnetic attraction structure 6' are provided on the second connector 5'; the first connector 5 and the second connector 5' are configured such that they can be magnetically attracted by the first magnetic attraction structure 6 and the second magnetic attraction structure 6', causing the first connecting terminal 7 to contact the corresponding second connecting terminal 7'. It is understood that the first connector 5 and the second connector 5' are male and female connectors to each other.

[0096] Unlike the traditional method of positioning and fixing the first connector 5 and the second connector 5' through positioning posts and positioning holes, in this embodiment of the present disclosure, when the first circuit board can move relative to the base plate 4, by setting the above-mentioned first magnetic attraction structure 6 and the second magnetic attraction structure 6', the first connector 5 in the sub-display panel assembly and the second connector 5' on the carrier housing can be automatically aligned and connected by magnetic attraction when the sub-display panel assembly is assembled on the carrier housing, which can greatly improve the assembly efficiency.

[0097] In addition, after the first connector 5 and the second connector 5' are fully connected and assembled, the fixed frame 1 (with display substrate 10) can be controlled to move relative to the first circuit board based on the elastic component 3, so that the position of the fixed frame 1 in each sub-display panel assembly on the carrier box can be adjusted, thereby enabling the adjustment of the splice and step difference between each sub-display panel assembly.

[0098] In some embodiments, a plurality of first connecting terminals 7 are provided on the surface of the first connector 5 away from the mounting surface, and the plurality of first connecting terminals 7 constitute a first connecting terminal 7 array; the number of first magnetic attraction structures 6 is two, and the two first magnetic attraction structures 6 are respectively located on opposite sides of the first connecting terminal 7 array. By providing the above-mentioned two first magnetic attraction structures 6, the alignment accuracy and assembly firmness during the magnetic attraction process can be improved.

[0099] In some embodiments, both the first magnetic structure 6 and the second magnetic structure 6' are magnets.

[0100] See you again Figure 1 In some embodiments, the first circuit board further includes a plurality of third connectors 8a, 8b, and 8c, which are located on the mounting surface and are connected to the circuit board in the display substrate 10 via flexible circuit boards FPC1 to FPC3.

[0101] Figure 10 This is a schematic diagram of a splicing display device provided in an embodiment of the present disclosure, such as... Figure 10 As shown, the splicing display device includes: a plurality of sub-display panel assemblies 11, wherein at least one sub-display panel assembly 11 adopts the sub-display panel assembly provided in the previous embodiment. For a detailed description of the sub-display panel assembly 11, please refer to the content in the previous embodiment, which will not be repeated here.

[0102] In some embodiments, the splicing display device further includes a carrier housing 12; the carrier housing 12 is configured to carry a plurality of sub-display panel assemblies 11.

[0103] See you again Figures 1 to 9 As shown, in some embodiments, the first circuit board further includes: a first connector 5, the first connector 5 being located on the mounting surface, and a first connecting terminal 7 and a first magnetic attraction structure 6 being provided on the side of the first connector 5 away from the mounting surface; a plurality of second circuit boards 2' corresponding one-to-one with the sub-display panel assembly are provided on the carrier housing, and a second connecting terminal 7' and a second magnetic attraction structure 6' are provided near the upper part of the second circuit board 2'; the first connector 5 and the second connector 5' are configured such that the two can be magnetically attracted together by the first magnetic attraction structure 6 and the second magnetic attraction structure 6' so that the first connecting terminal 7 and the corresponding second connecting terminal 7' come into contact.

[0104] In other words, when the sub-display panel assembly 11 is assembled onto the carrier housing 12, the first connector 5 in the sub-display panel assembly 11 and the second connector 5' on the carrier housing 12 can be automatically aligned and connected by magnetic attraction, which can greatly improve assembly efficiency.

[0105] As described above, these embodiments of the present invention do not exhaustively cover all details, nor do they limit the invention to the specific embodiments described. Clearly, many modifications and variations can be made based on the above description. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to effectively utilize the invention and its modifications. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sub-display panel assembly, wherein, include: Display substrate; A fixed frame includes: a base plate having a support surface and a mounting surface disposed opposite to each other, the support surface being configured to support the display substrate; The first circuit board, located on the side of the base plate away from the display substrate, includes: a first circuit board body, the first circuit board body being connected to the mounting surface of the base plate via an elastic component, the elastic component being configured to support the first circuit board body and enable the first circuit board body to move relative to the base plate; The first circuit board body is provided with a plurality of fifth vias, and the elastic component corresponds one-to-one with the fifth via. The elastic component includes: a fixing member and a third elastic member. The fastener is fixed to the mounting surface, one end of the third elastic element is connected to the corresponding fifth through hole, and the other end of the third elastic element is connected to the fastener; The first circuit board is capable of position adjustment in the normal direction of the display substrate and in a direction parallel to the plane on which the display substrate is located.

2. The sub-display panel assembly according to claim 1, wherein, The first circuit board body is provided with at least one first via hole, and the fixed frame is provided with a corresponding second via hole at a position opposite to the first via hole; The elastic component corresponds one-to-one with the first through hole, and the elastic component includes: a positioning element, which includes: a limiting part and a connecting part; The limiting part is located on the side of the first circuit board body away from the display substrate. The length of the limiting part in the second direction is greater than the length of the first via in the second direction. The second direction is parallel to the plane where the mounting surface is located. The connecting part passes through the first through hole, one end of the connecting part is connected to the limiting part, and the other end of the connecting part extends into the second through hole and is connected and assembled in the second through hole; The elastic component further includes: a first elastic element and / or a second elastic element, wherein the first elastic element is located between the limiting portion and the first circuit board body, and the second elastic element is located between the base plate and the first circuit board body; The first circuit board body is configured to move in a direction parallel to the normal of the base plate via the first elastic member and / or the second elastic member.

3. The sub-display panel assembly according to claim 2, wherein, The cross-sectional area of ​​the first via parallel to the display substrate is greater than the cross-sectional area of ​​the portion of the connection located within the first via parallel to the display substrate.

4. The sub-display panel assembly according to claim 3, wherein, The elastic component includes a first elastic element, and a first baffle is provided between the first elastic element and the first circuit board. The length of the first baffle in the third direction is greater than the length of the corresponding first via in the third direction. A third via is provided on the first baffle, and the diameter of the third via is smaller than the diameter of the first via. And / or, the elastic component includes a second elastic member, and a second baffle is further provided between the second elastic member and the first circuit board. The length of the second baffle in the third direction is greater than the length of the corresponding first via in the third direction. A fourth via is provided on the second baffle, and the diameter of the fourth via is smaller than the diameter of the first via. The third direction is parallel to the plane where the mounting surface is located.

5. The sub-display panel assembly according to any one of claims 2 to 4, wherein, The elastic component includes a first elastic element, which is sleeved around the periphery of the connecting portion. And / or, the elastic component includes a second elastic element, which is fitted around the periphery of the connection portion.

6. The sub-display panel assembly according to any one of claims 2 to 4, wherein, The first elastic element includes a spring or a sheet spring; The second elastic element includes a spring or a sheet.

7. The sub-display panel assembly according to any one of claims 2 to 4, wherein, The second through hole is a screw hole, the positioning element is a screw, the limiting part is the screw nut, the connecting part is the screw shank, and the external thread of the connecting part is adapted to the internal thread of the second through hole.

8. The sub-display panel assembly according to any one of claims 2 to 4, wherein, There are four first vias, which are located at the four corners of the main body of the first circuit board.

9. The sub-display panel assembly according to claim 1, wherein, The fastener includes: a fixing block and a connector; The fixing block is provided with a sixth through hole and a seventh through hole. The seventh through hole connects to the sixth through hole from one surface of the fixing block, and the extension direction of the seventh through hole intersects the extension direction of the sixth through hole. The connector extends through the seventh through hole into the sixth through hole and is connected to the fixing block; The end of the third elastic member away from the first circuit board body extends into the corresponding sixth via and is connected to the connector.

10. The sub-display panel assembly according to claim 9, wherein, The seventh through hole is a screw hole, the connector is a screw, and the internal thread of the seventh through hole is adapted to the external thread of the connector.

11. The sub-display panel assembly according to claim 9, wherein, The fixing block is integrally formed with the base plate.

12. The sub-display panel assembly according to claim 9, wherein, There are four fifth vias, which are located at the four corners of the first circuit board body.

13. The sub-display panel assembly according to any one of claims 9 to 12, wherein, The third elastic element includes a spring.

14. The sub-display panel assembly according to any one of claims 1 to 4, 9 to 12, wherein, The first circuit board further includes: a first connector, which is located on the mounting surface and is used to assemble with a second connector on the carrier housing; The first connector has a first connecting terminal and a first magnetic attraction structure on the side of its surface away from the mounting surface, and the second connector has a second connecting terminal and a second magnetic attraction structure. The first connector and the second connector are configured such that they can be magnetically attracted by the first magnetic attraction structure and the second magnetic attraction structure, so that the first connection terminal and the corresponding second connection terminal come into contact.

15. The sub-display panel assembly according to claim 14, wherein, The first connector has a plurality of first connection terminals on the side surface away from the mounting surface, and the plurality of first connection terminals constitute a first connection terminal array; There are two first magnetic attraction structures, and the two first magnetic attraction structures are located on opposite sides of the first connection terminal array.

16. The sub-display panel assembly of claim 14, wherein, The first circuit board further includes: a plurality of third connectors, the third connectors being located on the mounting surface and connected to the display substrate via a flexible circuit board.

17. A splicing display device, comprising: A plurality of sub-display panel assemblies, wherein at least one of the sub-display panel assemblies employs any one of the sub-display panel assemblies according to claims 1 to 16.

18. The splicing display device according to claim 17, wherein, Also includes: A support housing configured to support a plurality of the sub-display panel assemblies.

19. The splicing display device according to claim 17 or 18, wherein, The first circuit board further includes: a first connector, the first connector being located on the mounting surface, and the side surface of the first connector away from the mounting surface being provided with a first connection terminal and a first magnetic attraction structure; The carrier housing is provided with a plurality of second circuit boards that correspond one-to-one with the sub-display panel assembly. The second circuit boards are provided with second connection terminals and second magnetic structures near the upper part. The first connector and the second connector are configured such that they can be magnetically attracted by the first magnetic attraction structure and the second magnetic attraction structure, so that the first connection terminal and the corresponding second connection terminal come into contact.

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