Light panel and display device

Abstract

The application relates to a lamp panel and a display device, the lamp panel comprising a circuit board and a wiring terminal, the lamp panel being provided with a mounting hole penetratingly formed therein, the circuit board comprising a wiring layer, the wiring layer comprising a first wiring located at one side of the mounting hole and a second wiring located at the other side of the mounting hole, the wiring terminal comprising a seat body and a plurality of conductive pieces, the seat body being arranged in the mounting hole, the plurality of conductive pieces being arranged in the seat body at intervals, all the conductive pieces comprising a cross-wiring conductive piece and a communication conductive piece; one end of a welding pin of the cross-wiring conductive piece is arranged to protrude from one side of the seat body and is connected with the first wiring, the other end of the welding pin of the cross-wiring conductive piece is arranged to protrude from the other side of the seat body and is connected with the second wiring; a welding pin of the communication conductive piece is connected with the wiring layer, and a wiring pin of the communication conductive piece is used for being connected in communication with an external cable. The lamp panel can solve the problem that the wiring of the wiring layer is cut off by the mounting hole of the wiring terminal.

Description

Technical Field

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

[0002] A display device is a tool that displays electronic documents on a screen via specific transmission equipment and projects them onto the human eye. It converts signals from computers or other devices into images, allowing us to view and process information intuitively. Display devices can be of various types, including CRT, LCD, LED, and OLED.

[0003] Display devices typically include a display panel and a backlight module, with the display panel located on the light-emitting side of the backlight module. To transmit signals, the backlight module's lamp board needs to be fitted with terminals for connecting FFC (Flexible Flat Cable). Before installing the terminals, holes need to be drilled in the lamp board at the terminal locations, which cuts through the lamp board's wiring layer. This results in the signal transmission on the lamp board being interrupted by the terminals. To achieve signal continuity on both sides of the terminals, jumper wires must be added, complicating the wiring on the lamp board. Utility Model Content

[0004] Therefore, it is necessary to provide a lamp board and display device, wherein the wiring terminals of the lamp board and display device can transmit signals and have a cross-line function, so as to solve the problem that the wiring on the lamp board is cut off by the mounting holes of the wiring terminals.

[0005] In a first aspect, this application provides a light panel, comprising:

[0006] A circuit board having a through mounting hole, the circuit board including a trace layer, the trace layer including a first trace located on one side of the mounting hole and a second trace located on the other side of the mounting hole;

[0007] Terminal blocks, the terminal blocks comprising:

[0008] The base body is disposed in the mounting hole;

[0009] Multiple conductive elements are spaced apart from each other on the base body. Each conductive element includes a soldering pin and a wiring pin, and all conductive elements include at least one cross-line conductive element and at least one communication conductive element; wherein:

[0010] One end of the welding pin of the cross-line conductive component extends out of one side of the base and is connected to the first trace, and the other end of the welding pin of the cross-line conductive component extends out of the other side of the base and is connected to the second trace, so that the first trace and the second trace are connected.

[0011] The soldering pins of the communication conductive component are connected to the trace layer for transmitting signals with the trace layer; the wiring pins of the communication conductive component are used for communication connection with external cables for inputting or outputting signals through the external cables.

[0012] In the aforementioned light panel, by configuring the conductive components of the wiring terminals to include at least one cross-line conductive component and at least one communication conductive component, and by connecting the solder pins of the communication conductive component to the wiring layer, and the wiring pins of the communication conductive component to communicate with the external cable, signal transmission between the external cable and the wiring layer is ensured.

[0013] Meanwhile, by having one end of the solder pin of the crossover conductive component extend out to one side of the base and connect to the first trace, and the other end of the solder pin of the crossover conductive component extend out to the other side of the base and connect to the second trace, the first trace cut off by the mounting hole and the second trace can be connected through the solder pin of the crossover conductive component. Therefore, the current flow between the first trace and the second trace can be restored by using the solder pin of the crossover conductive component, eliminating the need to add additional jumper wires in the trace layer of the circuit board or in the external cable, thereby reducing the difficulty of the trace layout of the lamp board.

[0014] Furthermore, by directly connecting the first trace and the second trace using the soldering pins of the cross-line conductive component, the current flow between the driver chips in the driver chipset that was cut off by the mounting hole can be restored. This ensures the symmetry between the driver chipset that was cut off by the mounting hole and other driver chipsets that were not cut off, and prevents the entire string of driver chipsets from being cut off by the mounting hole to form multiple small driver chipsets. This reduces the number of driver chipsets, thereby ensuring the regularity of the circuit board layout and reducing the difficulty of the circuit board layout.

[0015] The technical solution will be further explained below:

[0016] In some embodiments, the circuit board further includes a substrate layer, the trace layer is stacked on the substrate layer, and the mounting hole penetrates the substrate layer and the trace layer;

[0017] One end of the base extends through the wiring layer to form a soldering end, and the other end of the base extends through the substrate layer to form a wiring end;

[0018] The welding pin is located at the welding end, and the wiring pin is located at the wiring end.

[0019] By making the mounting holes pass through both sides of the circuit board and having the two ends of the terminal block holder protrude from both sides of the circuit board, it can avoid the holder protruding too much from the lamp board, thus reducing the overall thickness of the lamp board. On the other hand, it allows the terminal block to connect to external cables from the side of the lamp board away from the display panel, reducing the winding operation and further simplifying the internal wiring layout of the display device.

[0020] In some embodiments, the terminal block has a socket for inserting the external cable, and the wiring pins are disposed in the socket.

[0021] Inserting the external cable into the socket ensures a stable connection between the external cable and the wiring pins inside the socket.

[0022] In some embodiments, the socket is located on the end face of the terminal opposite to the soldering end, or the socket is located on the side of the terminal.

[0023] By opening the socket on the side of the terminal block, the external cable can exit from the side of the terminal block after being inserted into the socket, thus avoiding increasing the thickness of the lamp board.

[0024] In some embodiments, the conductive element further includes:

[0025] A connecting part, one end of which is connected to the welding pin, and the other end of which is connected to the wiring pin;

[0026] A fixing part is located between the welding pin and the wiring pin and is connected to the connecting part. The fixing part is fixedly connected to the base body.

[0027] By fixing the conductive part to the base, the connection stability between the conductive part and the base can be increased.

[0028] In some embodiments, the welding pin, the wiring pin, the connecting portion, and the fixing portion are integrally formed.

[0029] The conductive component is a one-piece molded structure, which ensures its flatness and conductivity.

[0030] In some embodiments, the base body has a through hole that extends through both sides of the welding end, the welding pin is disposed in the through hole, and one end of the welding pin protrudes through an opening on one side of the through hole, while the other end of the welding pin protrudes through an opening on the other side of the through hole.

[0031] The base body is also provided with a mounting groove, which extends through one side of the base body and connects the through hole and the socket. The connecting part is disposed in the mounting groove.

[0032] The base body is also provided with a blind hole, which communicates with the mounting groove, and the fixing part is inserted into the blind hole.

[0033] In this way, during assembly, the conductive component can be placed into the base body from the side where the opening of the mounting slot is located, which facilitates the installation of the conductive component.

[0034] In some embodiments, the soldering pins include:

[0035] The main body is disposed in the base body;

[0036] The first pin is connected to one end of the main body and extends out from one side of the base;

[0037] The second pin is connected to the zero-one end of the main body and extends to the other side of the base; wherein:

[0038] The main body and the end face of the welding end are spaced apart, or the main body and the end face of the welding end are flush.

[0039] By spacing the end faces of the main body and the welding end apart, the main body can be hidden in the base; and by making the main body flush with the end face of the welding end, the end face of the welding end can be more easily picked up by the placement machine, thus facilitating the automated production of the light board.

[0040] In some embodiments, the soldering pins include:

[0041] The main body is disposed in the base body;

[0042] A first pin, one end of which is connected to one end of the main body, and the other end of which extends out of one side of the base and bends toward the wiring pin;

[0043] The second pin is connected to the other end of the main body and extends out of the other side of the base and bends toward the wiring pin.

[0044] Thus, after the terminals are installed into the mounting holes, the first and second pins can exert a downward pressure on the circuit board 30, making the first and second pins make closer contact with the trace layer and preventing cold solder joints between the first and second pins and the trace layer.

[0045] Secondly, this application also provides a display device, comprising:

[0046] Display panel, the display panel being used to display images;

[0047] A backlight module, located on the light-incident side of the display panel, the backlight module including the aforementioned lamp panel.

[0048] In the aforementioned display device, the lamp board configures the conductive components of the wiring terminals to include at least one cross-line conductive component and at least one communication conductive component. By connecting the solder pins of the communication conductive component to the wiring layer and the wiring pins of the communication conductive component to the external cable, signal transmission between the external cable and the wiring layer is ensured.

[0049] Meanwhile, by having one end of the solder pin of the crossover conductive component extend out to one side of the base and connect to the first trace, and the other end of the solder pin of the crossover conductive component extend out to the other side of the base and connect to the second trace, the first trace cut off by the mounting hole and the second trace can be connected through the solder pin of the crossover conductive component. Therefore, the current flow between the first trace and the second trace can be restored by using the solder pin of the crossover conductive component, eliminating the need to add additional jumper wires in the trace layer of the circuit board or in the external cable, thereby reducing the difficulty of the trace layout of the lamp board.

[0050] Furthermore, by directly connecting the first trace and the second trace using the soldering pins of the cross-line conductive component, the current flow between the driver chips in the driver chipset that was cut off by the mounting hole can be restored. This ensures the symmetry between the driver chipset that was cut off by the mounting hole and other driver chipsets that were not cut off, and prevents the entire string of driver chipsets from being cut off by the mounting hole to form multiple small driver chipsets. This reduces the number of driver chipsets, thereby ensuring the regularity of the circuit board layout and reducing the difficulty of the circuit board layout. Attached Figure Description

[0051] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0052] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:

[0054] Figure 1 This is a cross-sectional view of a display device according to an embodiment.

[0055] Figure 2 for Figure 1The diagram shows a cross-sectional view of the lamp panel of the display device.

[0056] Figure 3 This is a top view of a lamp panel according to one embodiment.

[0057] Figure 4 This is a cross-sectional view of a lamp panel according to one embodiment.

[0058] Figure 5 This is a schematic diagram of the wiring terminals of a lamp board according to one embodiment.

[0059] Figure 6 This is a schematic diagram of the wiring terminals of a lamp board according to another embodiment.

[0060] Figure 7 This is a cross-sectional view of the wiring terminals of a lamp board according to one embodiment.

[0061] Figure 8 Another embodiment shows a cross-sectional view of the wiring terminals of the lamp board.

[0062] Figure 9 This is a cross-sectional view of the terminal block of a lamp board according to one embodiment.

[0063] Figure 10 This is a schematic diagram of the conductive components of the wiring terminals of a lamp board according to one embodiment.

[0064] Figure 11 This is a schematic diagram of the driver chipset for a traditional LED board.

[0065] Figure 12 This is a schematic diagram of the structure of a lamp panel according to an embodiment of this application.

[0066] Figure 13 for Figure 12 The image shows a magnified view of part A.

[0067] Explanation of reference numerals in the attached figures:

[0068] 1. Lamp board; 10. Terminal block; 11. Base; 1111. Soldering end; 1112. Terminal block; 1113. Socket; 1114. Through hole; 1115. Mounting slot; 1116. Blind hole; 12. Conductive component; 1201. Crossover conductive component; 1202. Communication conductive component; 121. Soldering pin; 1211. Main body; 1212. First pin; 1213. Second pin; 122. Wiring pin; 123. Fixing part; 124. Connecting part; 20. Display panel; 30. Circuit board; 31. Wiring layer; 311. First wiring; 312. Second wiring; 313. Crossover wire; 32. Substrate layer; 321. Metal layer; 322. Insulating layer; 33. Solder mask layer; 34. Mounting hole; 40. Lamp body; 50. Driver chip; 51. Driver chipset; 60. External cable. Detailed Implementation

[0069] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0070] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0071] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0072] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0073] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0074] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0075] One embodiment of this application provides a display device, which can be any one of a television, computer, tablet, conference screen, or advertising screen. Specifically, see [link to relevant documentation]. Figure 1 One embodiment of the display device includes a display panel 20 and a backlight module.

[0076] In some embodiments, the display panel 20 is used to display an image. The display panel 20 has an incident side for light to enter and an exit side for light to exit. Light from the backlight module can enter the display panel 20 from the incident side, and the light is modulated in the display panel 20 and then emitted from the exit side to form an image projection.

[0077] In some embodiments, the backlight module is located on the light-incident side of the display panel 20, and the backlight module is used to provide backlight for the display panel 20.

[0078] In some embodiments, the backlight module includes a lamp board 1, which serves as the light source for the backlight module. The lamp board 1 can also dynamically control the light source in separate zones, thereby improving the dynamic contrast of the display panel 20. Exemplarily, the backlight module can use one lamp board 1 or multiple lamp boards 1 connected together to provide backlight for the entire display panel 20; this is not limited to any particular method.

[0079] In some embodiments, the light panel 1 includes a light body 40, which serves as a light source and can emit light. For example, in some embodiments, the light body 40 can be an LED (Light Emitting Diode), a mini LED (Miniature Light-Emitting Diode), a Micro LED (Micro Light-Emitting Diode), or the like.

[0080] Combination Figure 3 For example, in some embodiments, there are multiple lamp bodies 40, which are arranged in an array to effectively improve the contrast of the display screen 20 and achieve a higher image quality display effect.

[0081] See also Figure 1 In some embodiments, the lamp board 1 further includes a circuit board 30, which includes a wiring layer 31. The lamp body 40 is disposed on the wiring layer 31, which provides power and drive signals to the lamp body 40. A driver chip 50 is disposed on the wiring layer 31, which drives the lamp body 40 to emit light according to the drive signals. The wiring layer 31 is typically made of a metal material with good conductivity, such as copper, coated on the surface of a substrate and patterned to form signal lines.

[0082] See also Figure 1 In some embodiments, the circuit board 30 may further include a substrate layer 32. The substrate layer 32 serves as the substrate of the circuit board 30, supporting and fixing the wiring layer 31. The substrate may be a substrate material composed of a stacked metal layer 321 and an insulating layer 322.

[0083] In some embodiments, the circuit board 30 may further include a solder mask layer 33 located on the side of the trace layer 31 opposite to the substrate layer 32. The solder mask layer 33 is typically made of insulating materials such as acrylic resin, epoxy resin, or silicone resin, and serves to protect the trace layer 31. The solder mask layer 33 has a cutout window through which the lamp body 40 and the driver chip 50 are electrically connected to the trace layer 31.

[0084] See Figure 1 as well as Figure 4In some embodiments, to enable the signal transmission from the control board of the display device to the trace layer 31 of the circuit board 30, the lamp board 1 may further include a terminal block 10. The terminal block 10 is used to connect an external cable 60, allowing the circuit board 30 to be connected to the control board via the external cable 60, thereby enabling signal transmission between the control board and the lamp board 1 and achieving zoned control of the lamp board 1. In some embodiments, the external cable 60 may be an FFC (Flexible Flat Cable); the signals that the terminal block 10 can transmit include, but are not limited to, various signals such as drive signals or power signals.

[0085] Specifically, in some embodiments, the terminal block 10 includes solder pin 121 and wiring pin 122. Solder pin 121 is used for soldering to the wiring of the wiring layer 31, and wiring pin 122 is used for connecting to the gold fingers of the external cable 60, thereby realizing signal transmission between the external cable 60 and the wiring layer 31.

[0086] Currently, in traditional display devices, most of the soldering pins 121 of the terminal block 10 extend from only one side. Some related technologies, to accommodate more signals, extend the soldering pins 121 from both sides of the terminal block 10, connecting two driver chips 50 to each side, thereby increasing the number of zones on the LED board 1. However, whether the soldering pins 121 extend from one or both sides, the purpose of the current terminal block 10 is simply to transmit signals from the external cable 60 to the driver chip 50, or vice versa.

[0087] Furthermore, in order to install the terminal block 10 on the circuit board 30, mounting holes 34 need to be made on the circuit board 30. However, the mounting holes 34 penetrate the trace layer 31 of the circuit board 30, causing the traces on the trace layer 31 to be cut off by the mounting holes 34, thus interrupting the current or signal flow on the traces, and consequently hindering the signal transmission between the driver chip 50 or other electronic components on both sides of the mounting holes 34.

[0088] The inventors of this application discovered through research that as market demands for image display quality in display devices continue to increase, the number of partitions in the lamp board 1 is also increasing. This increase in the number of partitions in the lamp board 1 means that more driver chips 50 are needed to achieve more partition control, resulting in very dense wiring on the wiring layer 31 of the circuit board 30. Furthermore, with the increase in the number of driver chips 50, the number of corresponding terminals 10 also needs to increase accordingly, requiring more mounting holes 34 to be opened on the circuit board 30, which in turn causes more traces on the wiring layer 31 to be cut off by the mounting holes 34.

[0089] In addition, see Figure 11 In the current circuit board 30, multiple driver chips 50 are arranged in an array on the circuit board 30. The driver chips 50 in the same column are connected in series through a signal line to form a driver chip group 51. When the signal line of a certain string of driver chip group 51 is cut off by the mounting hole 34, the driver chip group 51 will be divided into two smaller driver chip groups 51, interrupting the signal transmission between the driver chips 50 in the same column, increasing the number of driver chip groups 51, destroying the layout of electronic components on the circuit board 30, and increasing the layout difficulty of the circuit board 30.

[0090] In related technologies, in order to restore the interconnection between traces interrupted by mounting hole 34, such as Figure 11 As shown, typically, only a jumper wire 313 can be added to the routing layer 31 of the circuit board 30, so that the two ends of the jumper wire 313 bypass the mounting hole 34 and connect the traces on both sides of the mounting hole 34 respectively, in order to restore the interconnection between the traces cut off by the mounting hole 34. However, such an interconnection method requires the addition of jumper wires 313 in the routing layer 31, which further increases the routing complexity of the routing layer 31, resulting in increased difficulty in the routing printing process of the routing layer 31.

[0091] In other related technologies, although some lamp boards 1 use terminals 10 with soldered pins 121 extending from both sides, it is still impossible to directly restore the interconnection between the traces cut off by the mounting holes 34 through the terminals 10. Specifically, in this type of lamp board 1, to achieve the interconnection between the traces cut off by the mounting holes 34, jumper wires need to be added to the external cable 60. The cut-off traces are connected by the jumper wires in the external cable 60 to restore the interconnection between the cut-off traces. This operation is difficult and also requires the addition of jumper wires to the external cable 60, increasing the manufacturing cost and difficulty of the external cable 60.

[0092] Based on this, this application also provides a lamp board 1 that can solve the problem of the wiring of the wiring layer 31 being cut off by the mounting hole 34 of the terminal 10, and can be applied to the above-mentioned display device. Specifically, see Figures 2 to 4 In some embodiments, the lamp board 1 includes a circuit board 30 and a terminal block 10.

[0093] In some embodiments, the circuit board 30 has a through mounting hole 34 for mounting the terminal block 10. The circuit board 30 includes a wiring layer 31, which includes a first wiring 311 located on one side of the mounting hole 34 and a second wiring 312 located on the other side of the mounting hole 34. That is, the current flow between the first wiring 311 and the second wiring 312 is cut off by the mounting hole 34.

[0094] For example, the first trace 311 and the second trace 312 can be signal lines for transmitting signals, such as signal lines connecting two adjacent driver chips 50 on the same driver chip group 51. The first trace 311 and the second trace 312 can also be conductive lines for conducting electricity. The number of first traces 311 corresponds one-to-one with the number of second traces 312, and there can be one or more traces.

[0095] See Figure 5 In some embodiments, the terminal block 10 includes a base 11 disposed in a mounting hole 34, thereby enabling the terminal block 10 to be fixed to the circuit board 30.

[0096] In some embodiments, the terminal block 10 further includes a plurality of conductive elements 12, which are spaced apart from each other on the base 11. Exemplarily, the base 11 has a cuboid structure, and the plurality of conductive elements 12 are spaced apart along the length of the base 11. Specifically, the number of conductive elements 12 can be 6, 12, 14, 16, or 24, thereby forming terminal blocks 10 with different pin counts such as 6-pin, 12-pin, 16-pin, 14-pin, and 24-pin, thus enabling the terminal block 10 to receive more signals.

[0097] Specifically, see Figure 4 Each conductive element 12 includes a solder pin 121 and a wiring pin 122 connected to each other. The solder pin 121 is used to connect to the wiring of the wiring layer 31, and the wiring pin 122 is used to connect to the external cable 60, wherein the external cable 60 can be an FFC (Flexible Flat Cable).

[0098] Combination Figure 12 as well as Figure 13 In some embodiments, all conductive elements 12 include at least one cross-line conductive element 1201 for cross-line function and at least one communication conductive element 1202 for transmitting signals outward.

[0099] Specifically, in some embodiments, one end of the solder pin 121 of the crossover conductive member 1201 extends out of one side of the base 11 and is connected to the first trace 311, and the other end of the solder pin 121 of the crossover conductive member 1201 extends out of the other side of the base 11 and is connected to the second trace 312, so that the first trace 311 and the second trace 312, which are cut off by the mounting hole 34, are connected through the solder pin 121 of the crossover conductive member 1201, restoring the current flow between the first trace 311 and the second trace 312. That is, the solder pin 121 of the crossover conductive member 1201 realizes the crossover function.

[0100] For example, in some embodiments, the connection pin 122 of the crossover conductive member 1201 is in an unused state, that is, the connection pin 122 of the crossover conductive member 1201 does not output or receive signals. For example, the unused state of the connection pin 122 means that: no gold finger is provided at the position of the connection pin 122 of the crossover conductive member 1201 corresponding to the position of the external cable 60, or after the gold finger of the external cable 60 contacts the connection pin 122 of the crossover conductive member 1201, the other end of the external cable 60 does not receive a signal at the contact point of the gold finger, thereby avoiding interference from external signals to the signal between the first trace 311 and the second trace 312.

[0101] For example, the number of crossover conductors 1201 is the same as the number of first traces 311 and second traces 312 that are cut off by mounting holes 34, so that the interconnection between the first traces 311 and second traces 312 that are cut off by mounting holes 34 can be restored through the wiring pins 122 of each crossover conductor 1201.

[0102] In some embodiments, the solder pin 121 of the communication conductive element 1202 is connected to the wiring layer 31 for transmitting signals with the wiring layer 31; the wiring pin 122 of the communication conductive element 1202 is used to communicate with the external cable 60 for inputting or outputting the signal through the external cable 60.

[0103] Understandably, in some embodiments, the solder pins 121 of the communication conductive element 1202 may extend from one side of the base 11 or from both sides of the base 11, without limitation. When both ends of the solder pins 121 of the communication conductive element 1202 extend from both sides of the base 11, the two ends of the solder pins 121 of the communication conductive element 1202 are used to access the same signal, thereby preventing signal interference.

[0104] In the aforementioned lamp board 1, the wiring terminal 10 is configured to include at least one cross-line conductive element 1201 and at least one communication conductive element 1202. By connecting the solder pin 121 of the communication conductive element 1202 to the wiring layer 31, the wiring pin 122 of the communication conductive element 1202 is communicatively connected to the external cable 60, thereby ensuring normal signal transmission between the external cable 60 and the wiring layer 31.

[0105] Meanwhile, by having one end of the solder pin 121 of the crossover conductive element 1201 extend out of one side of the base 11 and connect to the first trace 311, and the other end of the solder pin 121 of the crossover conductive element 1201 extend out of the other side of the base 11 and connect to the second trace 312, the first trace 311 and the second trace 312, which are cut off by the mounting hole 34, can be connected through the solder pin 121 of the crossover conductive element 1201. Therefore, the current flow between the first trace 311 and the second trace 312 can be restored by using the solder pin 121 of the crossover conductive element 1201, eliminating the need to add additional jumper wires 313 in the trace layer 31 of the circuit board 30 or in the external cable 60, thereby reducing the difficulty of the wiring layout of the lamp board 1.

[0106] In addition, combined Figure 12 as well as Figure 13 By using the soldering pin 121 of the cross-line conductive component 1201 to directly connect the first trace 311 and the second trace 312, the current flow between each driver chip 50 of the driver chip group 51 that was cut off by the mounting hole 34 can be restored, ensuring the symmetry of the driver chip group 51 that was cut off by the mounting hole 34 and other driver chip groups 51 that were not cut off. This prevents the entire string of driver chip groups 51 from being cut off by the mounting hole 34 to form multiple small driver chip groups 51, thereby reducing the number of driver chip groups 51 and ensuring the layout regularity of the circuit board 30, thus reducing the layout difficulty of the circuit board.

[0107] See Figure 4 In some embodiments, the mounting holes 34 of the circuit board 30 penetrate the substrate layer 32 and the wiring layer 31 of the circuit board 30.

[0108] Furthermore, the base 11 passes through the mounting hole 34, with one end of the base 11 extending out of the wiring layer 31 to form a soldering end 1111, and the other end of the base 11 extending out of the substrate layer 32 to form a wiring end 1112. Soldering pins 121 are provided at the soldering end 1111, and wiring pins 122 are provided at the wiring end 1112.

[0109] By having the mounting holes 34 pass through both sides of the circuit board 30 and the two ends of the base 11 of the terminal block 10 pass through both sides of the circuit board 30, on the one hand, the base 11 can be prevented from protruding too much from the lamp board 1, thus reducing the overall thickness of the lamp board 1. On the other hand, the terminal block 10 can be connected to the external cable 60 from the side of the lamp board 1 away from the display panel 20, reducing the winding operation and further simplifying the internal wiring layout of the display device.

[0110] See Figure 5In some embodiments, terminal 1112 has a socket 1113 for inserting an external cable 60, and wiring pins 122 are disposed in the socket 1113. Inserting the external cable 60 into the socket 1113 ensures a stable connection between the external cable 60 and the wiring pins 122 in the socket 1113.

[0111] Further, see Figure 5 In some embodiments, the socket 1113 is located on the side of the terminal 1112, so that the external cable 60 can exit from the side of the terminal 10 after being inserted into the socket 1113, thus avoiding increasing the thickness of the lamp board.

[0112] See Figure 6 Alternatively, in some other embodiments, the socket 1113 may also be located on the end face of the wiring pin 122 away from the solder end 1111.

[0113] See Figure 10 In some embodiments, the conductive element 12 further includes a connecting portion 124, one end of which is connected to the soldering pin 121 and the other end of which is connected to the wiring pin 122, thereby enabling signal communication between the soldering pin 121 and the wiring pin 122.

[0114] See also Figure 10 In some embodiments, the conductive element 12 further includes a fixing part 123, which is located between the soldering pin 121 and the wiring pin 122 and connected to the connecting part 124. The fixing part 123 is fixedly connected to the base 11, thereby increasing the stability of the connection between the conductive element 12 and the base 11.

[0115] Optionally, in some embodiments, the welding pin 121, the wiring pin 122, the connecting part 124 and the fixing part 123 can be integrally formed, for example, by stamping a metal part in one go, thereby ensuring the flatness and conductivity of the conductive part 12.

[0116] See Figure 7 as well as Figure 9 In some embodiments, the welding end 1111 of the base 11 has a through hole 1114, which extends through both sides of the base 11. Welding pins 121 are disposed in the through hole 1114, with one end of the welding pin 121 protruding through an opening on one side of the through hole 1114 and the other end protruding through an opening on the other side of the through hole 1114. By providing a through hole 1114 at the welding end 1111 of the base 11, the welding pins 121 can pass through the through hole 1114 to the opposite sides of the base 11, facilitating the assembly of the base 11 with the conductive component 12.

[0117] Combination Figure 8 as well as Figure 9The base 11 is also provided with a mounting groove 1115, which extends through one side of the base 11 and connects the through hole 1114 and the socket 1113. The connecting part 124 is provided in the mounting groove 1115.

[0118] For example, in some embodiments, the socket 1113 extends through one side of the base 11, and the mounting groove 1115 extends through the other side of the base 11. Thus, during assembly, the conductive element 12 can be inserted entirely into the base 11 from the side where the opening of the mounting groove 1115 is located, which facilitates the installation of the conductive element 12.

[0119] See also Figure 8 as well as Figure 9 In some embodiments, the base 11 is further provided with a blind hole 1116, which communicates with the mounting groove 1115, and the fixing part 123 is inserted into the blind hole 1116. Exemplarily, the fixing part 123 and the wiring pin 122 extend in the same direction, and the blind hole 1116 is formed at the bottom of the mounting groove 1115. By inserting the fixing part 123 into the blind hole 1116, the connection stability between the conductive element 12 and the base 11 can be increased.

[0120] See Figure 7 In some embodiments, the welding pin 121 includes a body portion 1211, a first pin 1212, and a second pin 1213.

[0121] In some embodiments, the main body 1211 is disposed in the base 11.

[0122] In some embodiments, the first pin 1212 is connected to one end of the main body 1211 and extends out from one side of the base 11.

[0123] In some embodiments, the second pin 1213 is connected to the other end of the main body 1211 and extends out to the other side of the base 11.

[0124] Referring again to 7, in some embodiments, there is a gap between the end face of the main body 1211 and the welding end 1111, thereby enabling the main body 1211 to be hidden in the base 11.

[0125] See Figure 8 In another embodiment, the main body 1211 is flush with the end face of the soldering end 1111. This reduces the height of the soldering end 1111 protruding from the circuit board 30, thereby reducing the overall thickness of the backlight module. Simultaneously, by making the main body 1211 flush with the end face of the soldering end 1111, the end face of the soldering end 1111 is more easily picked up by a pick-and-place machine, facilitating the automated production of the lamp board 1.

[0126] Alternatively, in one embodiment, see Figure 10One end of the first pin 1212 is connected to the main body 1211, and the other end of the first pin 1212 is bent towards the terminal pin 122. Figure 2 Thus, after the terminal block 10 is installed into the mounting hole 34, the first pin 1212 can abut against the circuit board 30 and exert a downward pressure on the circuit board 30, making the first pin 1212 and the trace layer 31 more closely contacted, preventing the first pin 1212 and the trace layer 31 from having poor soldering.

[0127] Similarly, one end of the second pin 1213 is connected to the main body 1211, and the other end of the second pin 1213 is bent toward the wiring pin 122. In this way, after the wiring terminal 10 is installed into the mounting hole 34, the second pin 1213 can abut against the circuit board 30 and exert a downward pressure on the circuit board 30, so that the second pin 1213 and the circuit board 30 make closer contact and prevent the second pin 1213 from being poorly soldered with the trace layer 31.

[0128] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0129] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A light panel, characterized in that, include: A circuit board having a through mounting hole, the circuit board including a trace layer, the trace layer including a first trace located on one side of the mounting hole and a second trace located on the other side of the mounting hole; Terminal blocks, the terminal blocks comprising: The base body is disposed in the mounting hole; Multiple conductive elements are spaced apart from each other on the base body. Each conductive element includes a soldering pin and a wiring pin, and all conductive elements include at least one cross-line conductive element and at least one communication conductive element; wherein: One end of the welding pin of the cross-line conductive component extends out of one side of the base and is connected to the first trace, and the other end of the welding pin of the cross-line conductive component extends out of the other side of the base and is connected to the second trace, so that the first trace and the second trace are connected. The soldering pins of the communication conductive component are connected to the trace layer for transmitting signals with the trace layer; the wiring pins of the communication conductive component are used for communication connection with external cables for inputting or outputting signals through the external cables.

2. The lamp panel according to claim 1, characterized in that, The circuit board further includes a substrate layer, the wiring layer is stacked on the substrate layer, and the mounting hole penetrates the substrate layer and the wiring layer; One end of the base extends through the wiring layer to form a soldering end, and the other end of the base extends through the substrate layer to form a wiring end; The welding pin is located at the welding end, and the wiring pin is located at the wiring end.

3. The lamp panel according to claim 2, characterized in that, The terminal block has a socket for inserting the external cable, and the wiring pins are disposed in the socket.

4. The lamp panel according to claim 3, characterized in that, The socket is located on the end face of the terminal opposite to the soldering end, or the socket is located on the side of the terminal.

5. The lamp panel according to claim 3, characterized in that, The conductive element further includes: A connecting part, one end of which is connected to the welding pin, and the other end of which is connected to the wiring pin; A fixing part is located between the welding pin and the wiring pin and is connected to the connecting part. The fixing part is fixedly connected to the base body.

6. The lamp panel according to claim 5, characterized in that, The welding pin, the wiring pin, the connecting part, and the fixing part are integrally formed.

7. The lamp panel according to claim 6, characterized in that: The base has a through hole that extends through both sides of the welding end. The welding pin is disposed in the through hole, with one end of the welding pin protruding through an opening on one side of the through hole and the other end of the welding pin protruding through an opening on the other side of the through hole. The base body is also provided with a mounting groove, which extends through one side of the base body and connects the through hole and the socket. The connecting part is disposed in the mounting groove. The base body is also provided with a blind hole, which communicates with the mounting groove, and the fixing part is inserted into the blind hole.

8. The lamp panel according to claim 2, characterized in that, The welding pins include: The main body is disposed in the base body; The first pin is connected to one end of the main body and extends out from one side of the base; The second pin is connected to the zero-one end of the main body and extends to the other side of the base; wherein: The main body and the end face of the welding end are spaced apart, or the main body and the end face of the welding end are flush.

9. The lamp panel according to claim 2, characterized in that, The welding pins include: The main body is disposed in the base body; A first pin, one end of which is connected to one end of the main body, and the other end of which extends out of one side of the base and bends toward the wiring pin; The second pin is connected to the other end of the main body and extends out of the other side of the base and bends toward the wiring pin.

10. A display device, characterized in that, include: Display panel, the display panel being used to display images; A backlight module, the backlight module being located on the light-incident side of the display panel, the backlight module comprising the lamp panel as described in any one of claims 1-9.

Images