LED module

Abstract

This invention relates to the field of LED display technology, and more particularly to an LED module, wherein at least two driving components and the main circuit to which these at least two driving components belong constitute a driving module; there are more than one driving module on the back of the circuit board; within each driving module, the input terminal of the first driving component is connected to the main circuit, and the first driving component to the last driving component are connected in series to achieve data signal conduction; the main circuit receives data signals on the back of the circuit board; within each driving module, a serial data jumper component is provided on the serial data connection line between any two adjacent driving components; the serial data jumper component enables unfaulty / uncut driving components to connect with other driving components / main circuits within the driving module. Its advantages are that after cutting the circuit board, there is no need to change the circuit design, saving the production cycle of multi-form LED displays and repetitive design.

Description

Technical Field

[0001] This invention relates to the field of LED display technology, and more particularly to an LED module. Background Technology

[0002] With the rapid development of computer information technology, LED displays are widely used in indoor and outdoor advertising media, as well as information displays in airports, train stations, hospitals, post offices, and docks. An LED display mainly consists of an information source, a control host, a power supply, and LED display modules, primarily displaying multimedia information such as video, text, images, and web pages. The LED display module is the main component of the display, mainly composed of a PCB circuit board, LED light-emitting diodes (LEDs), and a driver IC. The PCB circuit board serves as the carrier for the driver IC and LEDs, and the LED beads, driver IC, and PCB circuit board are soldered together to form a complete display unit.

[0003] However, current LED display modules generally adopt a rectangular design, with driver ICs evenly arranged on the back of the LED display PCB circuit board and LED beads evenly arranged on the front. The shape of the LED display module is fixed. If a triangular, trapezoidal, or circular LED display module needs to be made, the LED display module needs to be redesigned according to the display shape to meet this requirement. Since deliberate damage to the PCB circuit board can lead to the loss of some control signals or power supply components, it is not feasible to cut the LED display module into a rhombus shape or cut off the top, bottom, left, or right halves. This would damage the working environment of the entire LED display module and prevent it from displaying normally. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an LED module that solves the technical problem that the cutting of LED display modules leads to the loss of some control signals or power supply components, which damages the working environment of the entire LED display module and prevents it from displaying normally.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] This invention provides an LED module, including: a circuit board 20, a plurality of LED beads 19 arranged according to a first rule on the front side of the circuit board 20, and a plurality of driving components arranged according to a second rule on the back side of the circuit board 20. Each driving component drives one or more LED beads 19 for display via the circuit board 20.

[0009] At least two drive components and the main line 15 to which the at least two drive components belong constitute a drive module; one or more drive modules are regularly arranged on the back of the circuit board 20;

[0010] Within each drive module, the input terminal of the first drive component is connected to the main line 15, and the first drive component to the last drive component are connected in series to realize the data signal conduction; the main line 15 is a line integrated on the back of the circuit board 20 to receive data signals from external control devices;

[0011] Within each driver module, a serial data jumper assembly capable of electrically connecting to an external jumper is provided on the serial data connection line between any two adjacent driver components; the serial data jumper assembly is used to connect the unfaulty / uncut driver component to other driver components / main line 15 within the driver module via a jumper when one driver component in the serial data connection line fails or is cut off.

[0012] Optionally, the circuit board 20 includes: at least one cuttable area; at least one LED bead 19 is arranged on the front side of each cuttable area, and there is no driving component or at least one driving component on the back side of each cuttable area, or a driving module is provided on the back side of the cuttable area;

[0013] Each cuttable area has its own independent sub-circuit board with an interface for communicating with external devices, and signal flow between adjacent sub-circuits is achieved through plug-in / electrical contact.

[0014] Optionally, the circuit board 20 is quadrilateral, and the cuttable area is located on the periphery of the circuit board 20.

[0015] Optionally, the serial data jumper assembly includes: a first electrical contact and a second electrical contact;

[0016] The first electrical contact is located on the serial data connection line between two adjacent drive components, and the second electrical contact is located in the main line 15 area and is connected to the main line 15.

[0017] The first electrical contact point corresponds one-to-one with the second electrical contact point.

[0018] Optionally, the first electrical contact point and the second electrical contact point of the serial data jumper assembly are both solder points disposed on the surface of the circuit board 20, and the surface of the solder points is provided with an insulating protective film.

[0019] Optionally, all drive components receive control signals from external devices in parallel.

[0020] Optionally, when the trimmable area is removed, the LED beads 19 in the remaining area of ​​the circuit board 20 are all connected to other drive components / main lines 15 by means of the serial data jumper component to which the drive component of the remaining area belongs, so that the LED beads 19 in the remaining area of ​​the circuit board 20 can be driven and displayed by the drive component of the remaining area.

[0021] Optionally, the driving components are arranged within the driving module along the length of the circuit board 20.

[0022] Optionally, the circuit board 20 is a flexible PCB board.

[0023] (III) Beneficial Effects

[0024] The beneficial effects of the present invention are as follows: The LED module of the present invention, by using a serial data jumper assembly to connect the driver assembly, can eliminate the need to redesign the LED display module after the LED display is cut, thus saving the production cycle of multi-form LED displays and the effect of repetitive design, and realizing a variety of different display forms. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of an LED module provided in Embodiment 1 of the present invention;

[0026] Figure 2 This is a schematic diagram showing the division of the cuttable area of ​​an LED module.

[0027] Figure 3 A schematic diagram showing how LED beads are displayed after being cut from an LED module.

[0028] Figure 4 A schematic diagram showing the division of the control area of ​​the driving component of an LED module;

[0029] Figure 5 This is a schematic diagram of the LED module shape that can be achieved in Embodiments 1 and 2 of the present invention;

[0030] Figure 6 A schematic diagram for cutting out a circular LED module.

[0031] [Explanation of Labels in the Attached Image]

[0032] 1: First drive component; 2: Second drive component; 3: Third drive component; 4: Fourth drive component; 5: Fifth drive component; 6: Sixth drive component; 7: Seventh drive component; 8: Eighth drive component; 9: Ninth drive component; 10: Tenth drive component;

[0033] 11: First serial data jumper assembly; 12: Second serial data jumper assembly; 13: Third serial data jumper assembly; 14: Fourth serial data jumper assembly;

[0034] 15: Main line;

[0035] 17: First drive module; 18: Second drive module;

[0036] 19: LED beads; 20: Circuit board. Detailed Implementation

[0037] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] The present invention proposes an LED module that, by setting a serial data jumper component between any driving components, allows the undamaged / undamaged driving components to be connected to other driving components / main circuits within the driving module after the circuit board is cut. This achieves the effect of saving the production cycle of multi-form LED displays and the repetitive design, and eliminates the need to redesign the circuit.

[0039] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0040] Example 1

[0041] The LED module includes: a circuit board 20, a plurality of LED beads 19 arranged on the front of the circuit board 20 according to a first rule, and a plurality of driving components arranged on the back of the circuit board 20 according to a second rule, wherein each driving component drives one or more LED beads 19 for display via the circuit board 20.

[0042] Based on this, such as Figure 1 As shown, this embodiment provides an LED module, including: at least two driving components and a main circuit 15 to which the at least two driving components belong to form a driving module; one or more driving modules are regularly arranged on the back of the circuit board 20.

[0043] Within each drive module, the input terminal of the first drive component is connected to the main line 15, and the first drive component to the last drive component are connected in series to realize the data signal conduction; the main line 15 is a line integrated on the back of the circuit board 20 to receive data signals from external control devices.

[0044] Within each driver module, a serial data jumper assembly capable of electrically connecting to an external jumper is provided on the serial data connection line between any two adjacent driver components; the serial data jumper assembly is used to connect the unfaulty / uncut driver component to other driver components / main line 15 within the driver module via a jumper when one driver component in the serial data connection line fails or is cut off.

[0045] For example, a circuit board 20 has several LED beads 19 evenly arranged on its front side, and two driving modules, namely the first driving module 17 and the second driving module 18, are arranged in the middle of the top and bottom positions on the back side of the circuit board 20.

[0046] Each drive module contains five drive components and the main line 15 to which the five drive components belong; the five drive components are arranged in series along the length of the circuit board 20.

[0047] The five drive components of the first drive module 17 are the first drive component 1, the second drive component 2, the third drive component 3, the fourth drive component 4 and the fifth drive component 5, and the five drive components of the second drive module 18 are the sixth drive component 6, the seventh drive component 7, the eighth drive component 8, the ninth drive component 9 and the first drive component 10.

[0048] The input terminal of the first driving component 1 in the first driving module 17 is connected to the main line 15 of the first driving module 17, and the input terminal of the sixth driving component 6 in the second driving module 18 is connected to the main line 15 of the second driving module 18. The main line 15 receives data signals from external control devices on the back of the circuit board 20. The data signals flow into the driving module from the input terminal of the first driving component in a serial transmission manner. Each driving component receives the specified data signal, causing the LED beads 19 driven by that driving component to display.

[0049] A first serial data jumper assembly 11 of the second drive component 2 is provided on the serial data connection line between the first drive component 1 and the second drive component 2. The first serial data jumper assembly 11 includes a first electrical contact and a second electrical contact. The first electrical contact of the second drive component 2 is soldered onto the second drive component 2, and the second electrical contact of the second drive component 2 is soldered onto the main line 15 of the first drive module 17. A second serial data jumper assembly 12 of the third drive component 3 is provided on the serial data connection line between the second drive component 2 and the third drive component 3. The second serial data jumper assembly 12 includes a first electrical contact and a second electrical contact. The first electrical contact of the third drive component 3 is soldered onto the third drive component 3, and the second electrical contact of the third drive component 3 is soldered onto the main line 15 of the first drive module 17. A third serial data jumper assembly 13 for the seventh drive component 7 is provided on the serial data connection line between the sixth drive component 6 and the seventh drive component 7. The third serial data jumper assembly 13 includes a first electrical contact and a second electrical contact. The first electrical contact of the seventh drive component 7 is soldered onto the seventh drive component 7, and the second electrical contact of the seventh drive component 7 is soldered onto the main line 15 of the second drive module 18. A fourth serial data jumper assembly 14 for the eighth drive component 8 is provided on the serial data connection line between the seventh drive component 7 and the eighth drive component 8. The fourth serial data jumper assembly 14 includes a first electrical contact and a second electrical contact. The first electrical contact of the eighth drive component 8 is soldered onto the eighth drive component 8, and the second electrical contact of the eighth drive component 8 is soldered onto the main line 15 of the second drive module 18.

[0050] The circuit board 20 is a flexible PCB board.

[0051] The driving component is a semiconductor, and data signals are transmitted unidirectionally through this driving component.

[0052] If the first drive component 1 fails or is cut off, the first and second electrical contacts of the second drive component 2 are connected by soldering, and the serial data jumper component of the second drive component 2 is connected to the main line 15 of the first drive module 17 as an input terminal. If both the first drive component 1 and the second drive component 2 fail or are cut off, the first and second electrical contacts of the third drive component 3 are connected by soldering, and the serial data jumper component of the third drive component 3 is connected to the main line 15 of the first drive module 17 as an input terminal. If the sixth drive component 6 fails or is cut off, the first and second electrical contacts of the seventh drive component 7 are connected by soldering, and the serial data jumper component of the seventh drive component 7 is connected to the main line 15 of the second drive module as an input terminal. If both the sixth drive component 6 and the seventh drive component 7 fail or are cut off, the first and second electrical contacts of the eighth drive component 8 are connected by soldering, and the serial data jumper component of the eighth drive component 8 is connected to the main line 15 of the second drive module as an input terminal.

[0053] This embodiment does not require redesigning the LED module, saving the production cycle of multi-form LED displays and repetitive design.

[0054] Example 2

[0055] Based on Embodiment 1, this embodiment provides a specific description of the LED module, wherein at least two driving components and the main circuit 15 to which the at least two driving components belong constitute a driving module; and one or more driving modules are regularly arranged on the back of the circuit board 20.

[0056] Within each drive module, the input terminal of the first drive component is connected to the main line 15, and the first drive component to the last drive component are connected in series to realize the data signal conduction; the main line 15 is a line integrated on the back of the circuit board 20 to receive data signals from external control devices.

[0057] Within each driver module, a serial data jumper assembly capable of electrically connecting to an external jumper is provided on the serial data connection line between any two adjacent driver components; the serial data jumper assembly is used to connect the unfaulty / uncut driver component to other driver components / main line 15 within the driver module via a jumper when one driver component in the serial data connection line fails or is cut off.

[0058] Specifically, the circuit board 20 includes: at least one cuttable area; at least one LED bead 19 is arranged on the front side of each cuttable area, and the back side of each cuttable area has no driving component or has at least one driving component, or a driving module is provided on the back side of the cuttable area, such as... Figure 2 As shown.

[0059] Each cuttable area has its own independent sub-circuit board with an interface for communicating with external devices, and signal flow between adjacent sub-circuits is achieved through plug-in / electrical contact.

[0060] The circuit board 20 is quadrilateral, and the cuttable area is located on the periphery of the circuit board 20.

[0061] The drive components are arranged along the length of the circuit board 20 within the drive module.

[0062] The circuit board 20 is a flexible PCB board.

[0063] For example, a quadrilateral circuit board 20 includes: a non-cuttable area, a first cuttable area, and a second cuttable area; the non-cuttable area of ​​the circuit board 20 is quadrilateral and includes: a third driving component 3, an eighth driving component 8, a second serial data jumper component 12 of the third driving component 3, a fourth serial data jumper component 14 of the eighth driving component 8, a main line 15, and all LED beads 19 at the corresponding positions of the non-cuttable area, such as... Figure 2 As shown.

[0064] The first cutting area of ​​the circuit board 20 is a ring quadrilateral. This first cutting area, excluding the non-cuttable area, includes: a first driving component 1, a second driving component 2, a fourth driving component 4, a fifth driving component 5, a sixth driving component 6, a seventh driving component 7, a ninth driving component 9, a tenth driving component 10, a first serial data jumper component 11 of the second driving component 2, a third serial data jumper component 13 of the seventh driving component 7, a main line 15, and all LED beads 19 at the corresponding positions within the first cutting area. During cutting in the first cutting area, the driving components of the LED beads 19 on the circuit board 20 after cutting are ensured to remain undamaged and uncut. Figure 2 As shown.

[0065] The second cutting area of ​​the circuit board 20 is a ring quadrilateral. This second cutting area is outside the non-cuttable area and the first cutting area, and includes all LED beads 19 and the main circuit 15 at the corresponding position of the second cutting area. No driving components are allowed at the corresponding position of the second cutting area. Figure 2 As shown.

[0066] When cutting in the second cutting area, you can cut in any direction.

[0067] Specifically, the serial data jumper assembly includes: a first electrical contact and a second electrical contact.

[0068] The first electrical contact is located on the serial data connection line between two adjacent drive components, and the second electrical contact is located in the main line 15 area and is connected to the main line 15.

[0069] The first electrical contact point corresponds one-to-one with the second electrical contact point.

[0070] The first and second electrical contact points of the serial data jumper assembly are solder points set on the surface of the circuit board 20, and the surface of the solder points is provided with an insulating protective film.

[0071] All drive components receive control signals from external devices in parallel.

[0072] For example, such as Figure 3 As shown, a quadrilateral circuit board 20 is cut along the cutting line 1, removing the left side of the circuit board 20 to obtain the right side of the cutting line 1. The insulating protective film on the first and second electrical contacts of the third drive component 3 is removed, and the insulating protective film on the first and second electrical contacts of the eighth drive component 8 is also removed. The first and second electrical contacts of the third drive component 3 and the first and second electrical contacts of the eighth drive component 8 are then soldered together, allowing the data signal on the main line 15 to flow normally into the undamaged / uncut drive components, driving the LED beads 19 controlled by the undamaged / uncut drive components to display normally.

[0073] If the portion of the circuit board 20 containing only the LED beads 19 is cut off around its perimeter, no further operation is required to make the LED beads 19 on the desired circuit board 20 display normally. Similarly, if the circuit board 20 on the right side of the cutting line 2 is cut off to obtain the circuit board 20 on the left side of the cutting line 2, no further operation is required to make the LED beads 19 on the desired circuit board 20 display normally. This is because the driving component is a semiconductor, and the data signal is transmitted unidirectionally within the driving component. The circuit design of the circuit board 20 allows the data signal to be input from the first driving component 1 and the sixth driving component 6. The data signal is transmitted serially in each driving component. Each driving component can drive the LED beads 19 to display by receiving its own data signal and receiving control signals from the external control device in parallel, without needing to form a complete circuit.

[0074] Specifically, when the trimmable area is removed, the LED beads 19 in the remaining area of ​​the circuit board 20 are all connected to other drive components / main lines 15 via the serial data jumper assembly to which the drive component of the remaining area belongs, so that the LED beads 19 in the remaining area of ​​the circuit board 20 can all be driven and displayed by the drive component of the remaining area, such as... Figure 4 As shown.

[0075] For example, a quadrilateral circuit board 20 is divided into ten display areas. The first driving component 1 controls the LED beads 19 of the first display area, the second driving component 2 controls the LED beads 19 of the second display area, the third driving component 3 controls the LED beads 19 of the third display area, the fourth driving component 4 controls the LED beads 19 of the fourth display area, the fifth driving component 5 controls the LED beads 19 of the fifth display area, the sixth driving component 6 controls the LED beads 19 of the sixth display area, the seventh driving component 7 controls the LED beads 19 of the seventh display area, the eighth driving component 8 controls the LED beads 19 of the eighth display area, the ninth driving component 9 controls the LED beads 19 of the ninth display area, and the first driving component 10 controls the LED beads 19 of the tenth display area.

[0076] The division of the control range of the driving components described above is intended to ensure that when a certain driving component fails or is cut off, the LED beads 19 located on the other side of the circuit board 20 of the failed or cut-off driving component are driven by the unfailed / uncut driving component, so as not to affect the display of the LED beads 19.

[0077] This embodiment allows a single LED module to be cut into various styles of LED modules without changing any circuit design, ensuring the feasibility of multiple LED module forms, such as... Figure 5 As shown.

[0078] Example 3

[0079] Based on Embodiments 1 and 2, this embodiment processes the quadrilateral LED module to obtain a circular LED module, such as... Figure 6 As shown. The insulating protective film on the first and second electrical contacts of the second driving component 2 is removed, and the first and second electrical contacts are connected by solder, so that the input terminal of the second driving component 2 is connected to the main line. The serial data signal from the external control device is sequentially transmitted to each driving component through the main line 15. The LED beads 19 to be driven are controlled according to the control information received in parallel by the driving components. Similarly, the insulating protective film on the first and second electrical contacts of the seventh driving component 7 is removed, and the first and second electrical contacts are connected by solder, so that the input terminal of the seventh driving component 7 is connected to the main line. The serial data signal from the external control device is sequentially transmitted to each driving component through the main line 15. The LED beads 19 to be driven are controlled according to the control information received in parallel by the driving components.

[0080] Since the data signal is transmitted unidirectionally in the drive component, it can be achieved without a complete circuit, so the fifth drive component 5 and the first drive component 10 located at the tail do not need to be processed.

[0081] This embodiment provides strong support for the implementation of Embodiment 1 and Embodiment 2 through a simple, clear, and intuitive process.

[0082] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0083] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0084] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0085] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0086] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An LED module, comprising: A circuit board (20), a plurality of LED beads (19) arranged according to a first rule on the front side of the circuit board (20), and a plurality of driving components arranged according to a second rule on the back side of the circuit board (20), each driving component driving one or more LED beads (19) for display by means of the circuit board (20), characterized in that: At least two drive components and the main line (15) to which the at least two drive components belong constitute a drive module; one or more drive modules are regularly arranged on the back of the circuit board (20); Within each drive module, the input terminal of the first drive component is connected to the main line (15), and the first drive component to the last drive component are connected in series to realize the data signal conduction; the main line (15) is a line integrated on the back of the circuit board (20) to receive data signals from external control devices; Within each drive module, a serial data jumper assembly capable of electrically connecting an external jumper is provided on the serial data connection line of any two adjacent drive components; the serial data jumper assembly is used to connect the unfaulted / uncut drive component to other drive components / main lines (15) within the drive module via a jumper when one drive component of the serial data connection line fails or is cut off. The serial data jumper assembly includes: a first electrical contact and a second electrical contact; The first electrical contact is set on the serial data connection line of two adjacent drive components, and the second electrical contact is set in the main line (15) area and connected to the main line (15); The first electrical contact point corresponds one-to-one with the second electrical contact point.

2. The LED module according to claim 1, characterized in that, The circuit board (20) includes: at least one cuttable area; at least one LED bead (19) is arranged on the front of each cuttable area, and there is no driving component or at least one driving component on the back of each cuttable area, or a driving module is provided on the back of the cuttable area; Each cuttable area has its own independent sub-circuit board with an interface for communicating with external devices, and signal flow between adjacent sub-circuits is achieved through plug-in / electrical contact.

3. The LED module according to claim 2, characterized in that, The circuit board (20) is quadrilateral, and the cuttable area is located on the periphery of the circuit board (20).

4. The LED module according to claim 1, characterized in that, The first and second electrical contact points of the serial data jumper assembly are solder points set on the surface of the circuit board (20), and the surface of the solder points is provided with an insulating protective film.

5. The LED module according to claim 1, characterized in that, All drive components receive control signals from external devices in parallel.

6. The LED module according to claim 2, characterized in that, When the cuttable area is removed, the LED beads (19) in the remaining area of ​​the circuit board (20) are connected to other drive components / main lines (15) by means of the serial data jumper component to which the drive component of the remaining area belongs, so that the LED beads (19) in the remaining area of ​​the circuit board (20) can be driven and displayed by the drive component of the remaining area.

7. The LED module according to claim 1, characterized in that, The drive components are arranged along the length of the circuit board (20) within the drive module.

8. The LED module according to claim 1, characterized in that, The circuit board (20) is a flexible PCB board.

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