Backup circuit for lamp bead with built-in IC (integrated circuit) and lamp bead

Abstract

The utility model relates to a backup circuit for a lamp bead with a built-in IC and the lamp bead, and the backup circuit comprises a main lamp group which comprises a plurality of lamp beads arranged according to positions; the standby lamp group comprises a plurality of lamp beads arranged according to positions, and the lamp beads in the standby lamp group are in one-to-one correspondence with the lamp beads in the main lamp group; the controller is connected with all the lamp beads and used for detecting the working state of the lamp beads in the main lamp set and starting the corresponding lamp beads in the standby lamp set to replace the failed lamp beads in the main lamp set to emit light when it is detected that any one or more lamp beads in the main lamp set fail. According to the scheme of the backup circuit provided by the utility model, not only is the maintenance cost greatly reduced, but also the requirement of manually replacing the lamp beads is obviously reduced, and the maintenance efficiency is improved. Therefore, the circuit has remarkable beneficial effects in the aspects of improving the product reliability, reducing the maintenance cost and improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, and in particular to a backup circuit and lamp bead for a built-in IC lamp bead. Background Technology

[0002] Currently, in the outdoor and semi-outdoor display field, IC-based LED solutions are widely used in products such as glass screens, potted screens, and GOB (Glass On Board). However, due to the characteristics of these solutions in design and implementation, a significant pain point exists: maintenance difficulty. Specifically, the data structure in this solution requires high integration; therefore, if two or even just one LED in a data set fails, the entire screen may be rendered unusable. This high sensitivity leads to a significant increase in maintenance costs, as even minor faults may require replacing the entire screen module, resulting in exorbitant repair expenses. Therefore, existing technologies have significant shortcomings in controlling reliability and maintenance costs. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a backup circuit and lamp beads for built-in IC lamp beads, which solves the technical problems of difficult maintenance, the possibility of the whole screen being scrapped due to minor faults, and high maintenance costs caused by the high integration of IC LED solutions in the field of outdoor and semi-outdoor displays.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] In a first aspect, embodiments of the present invention provide a backup circuit for an LED bead with a built-in IC, comprising:

[0008] The main lighting unit consists of multiple LEDs arranged in a specific position;

[0009] The backup light group contains multiple LEDs arranged in a specific position, and the LEDs in the backup light group correspond one-to-one with the LEDs in the main light group.

[0010] The controller, connected to all LEDs, is used to detect the working status of the LEDs in the main LED group. When it detects that any one or more LEDs in the main LED group have failed, it activates the corresponding LED in the backup LED group to replace the LED in the failed main LED group to emit light.

[0011] Optionally, the LEDs in both the main and standby light groups include:

[0012] LED bead housing;

[0013] The lamp bead body is placed inside the lamp bead housing;

[0014] The light-emitting chip, placed inside the LED bead housing, is connected to the LED bead body.

[0015] The driver IC, located inside the LED housing, is connected to the controller and the LED chip respectively, and is used to enable or disable the corresponding LED chip.

[0016] Optionally, the driver IC includes:

[0017] One main signal terminal is used to receive the main signal input from the controller;

[0018] A backup signal terminal is used to receive the backup signal input from the controller when the main signal terminal does not receive the main signal input from the controller.

[0019] Optionally, each LED has at least three light-emitting chips.

[0020] Optionally, it also includes:

[0021] The PCB board contains all the LEDs, and each LED has a unique two-dimensional coordinate on the PCB board.

[0022] Secondly, this utility model embodiment provides an LED bead for use with a built-in IC, comprising:

[0023] LED bead housing;

[0024] The lamp bead body is placed inside the lamp bead housing;

[0025] The light-emitting chip, placed inside the LED bead housing, is connected to the LED bead body.

[0026] The driver IC, which is located inside the LED housing and connected to the light-emitting chip, has a main signal terminal and a backup signal terminal. The main signal terminal is used to receive the input main signal, and the backup signal terminal is used to receive the input backup signal when the main signal terminal does not receive the input main signal.

[0027] Optionally, each LED has at least three light-emitting chips.

[0028] Optionally, all LEDs are arranged on a PCB board, and each LED has a unique two-dimensional coordinate on the PCB board.

[0029] (III) Beneficial Effects

[0030] The beneficial effects of this utility model are as follows: First, the circuit provided by this utility model achieves dual protection for the LED beads through the design of a main LED group and a backup LED group. In the main LED group, multiple LED beads are arranged according to their positions to ensure uniformity and consistency of the display effect. The backup LED group corresponds one-to-one with the main LED group, providing a backup for each main LED bead. More importantly, the circuit is also equipped with a controller, which is connected to all LED beads and can obtain the working status of the LED beads in the main LED group in real time. Once it is detected that any one or more LED beads in the main LED group have failed, the controller can respond quickly and activate the corresponding LED bead in the backup LED group to seamlessly replace the failed main LED bead, ensuring the continuity and stability of the display effect.

[0031] This design is of great significance for products that are difficult to repair, such as glass screens, potted screens, and GOBs. In traditional solutions, too many LED failures often lead to the scrapping of the entire screen, resulting in high repair costs and a cumbersome and complex manual replacement process. However, this backup circuit solution not only significantly reduces repair costs but also substantially reduces the need for manual LED replacement, thereby improving repair efficiency. Therefore, this circuit demonstrates significant benefits in improving product reliability, reducing repair costs, and enhancing user experience. Attached Figure Description

[0032] Figure 1 A circuit schematic diagram of a backup circuit for an LED bead with a built-in IC provided for an embodiment of this utility model;

[0033] Figure 2 An electrical layout diagram for an LED bead with a built-in IC is provided for an embodiment of this utility model. Detailed Implementation

[0034] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1 As shown in the figure, a backup circuit for LED beads with built-in ICs proposed in this utility model embodiment includes: a main LED group containing multiple LED beads arranged in a specific position; a backup LED group containing multiple LED beads arranged in a specific position, wherein the LED beads in the backup LED group correspond one-to-one with the LED beads in the main LED group; and a controller connected to all LED beads, used to detect the working status of the LED beads in the main LED group, and when any one or more LED beads in the main LED group are detected to be faulty, to activate the corresponding LED beads in the backup LED group to replace the faulty LED beads in the main LED group to emit light.

[0036] Firstly, the circuit provided by this invention achieves dual protection for the LED beads through the design of a main LED group and a backup LED group. In the main LED group, multiple LED beads are arranged in a specific position to ensure uniform and consistent display effects. The backup LED group corresponds one-to-one with the main LED group, providing a backup for each main LED bead. More importantly, the circuit is also equipped with a controller connected to all LED beads, capable of acquiring the working status of the LED beads in the main LED group in real time. Once it detects that any one or more LED beads in the main LED group have failed, the controller can quickly respond and activate the corresponding LED bead in the backup LED group to seamlessly replace the failed main LED bead, ensuring continuous and stable display effects.

[0037] This design is of great significance for products that are difficult to repair, such as glass screens, potted screens, and GOBs. In traditional solutions, too many LED failures often lead to the scrapping of the entire screen, resulting in high repair costs and a cumbersome and complex manual replacement process. However, this backup circuit solution not only significantly reduces repair costs but also substantially reduces the need for manual LED replacement, thereby improving repair efficiency. Therefore, this circuit demonstrates significant benefits in improving product reliability, reducing repair costs, and enhancing user experience.

[0038] 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.

[0039] Specifically, the lamps in both the main lamp group and the backup lamp group include: a lamp housing; a lamp body placed inside the lamp housing; a light-emitting chip placed inside the lamp housing and connected to the lamp body; and a driver IC placed inside the lamp housing, which is connected to the controller and the light-emitting chip respectively, and is used to enable or disable the corresponding light-emitting chip.

[0040] The advantage of this structure and connection lies in its ability to flexibly control the illumination status of the LEDs. When an LED in the main LED group fails, the controller can quickly activate the corresponding LED in the backup LED group via the driver IC to replace the failed LED and continue the display. This backup mechanism not only improves the reliability of the entire circuit but also significantly extends the product's lifespan.

[0041] Furthermore, because each LED is equipped with an independent driver IC, this design offers excellent scalability and flexibility. The number of LEDs can be easily increased or decreased as needed without affecting the overall circuit operation. This design enables the circuit to exhibit superior performance and stability when applied to displays of different sizes and specifications.

[0042] Furthermore, the driver IC includes: a main signal terminal for receiving a main signal input from the controller; and a backup signal terminal for receiving a backup signal input from the controller when the main signal terminal does not receive a main signal input from the controller.

[0043] refer to Figure 1 When the main signal terminal (DIN) of the driver IC of a certain LED in group A or group B fails to receive a signal, it may be due to a broken signal line, a faulty driver IC, or a problem with the controller output.

[0044] In this situation, the controller immediately activates the driver IC in the corresponding set of LEDs. The activated backup driver IC receives a backup signal from the controller via its backup signal terminal (FDIN). Preferably, this backup signal is generated by the controller based on the original master signal, ensuring that the backup LED emits light according to the same logic and timing as the master LED. In this way, even if a LED or driver IC in the master LED group fails, the corresponding LED in the backup LED group can quickly take over and continue emitting light, thus ensuring the continuity and stability of the entire LED array.

[0045] Next, each LED bead contains at least three light-emitting chips. This design decision is based on several considerations: First, by increasing the number of light-emitting chips in each LED bead to at least three, the overall brightness of the LED bead can be significantly improved. Simultaneously, the collaborative work of multiple light-emitting chips helps to achieve a more uniform light distribution, reducing uneven brightness or light spots, thereby improving the overall visual effect. Second, placing multiple light-emitting chips within a single LED bead also provides a certain degree of redundancy for the circuit. Even if one light-emitting chip fails or its performance degrades, the other chips can still continue to work, ensuring that the basic function of the LED bead is not affected. This design improves the reliability and stability of the entire LED bead and even the entire lighting system.

[0046] Furthermore, the circuit also has a PCB board, on which all the LEDs are arranged, and each LED has a unique two-dimensional coordinate on the PCB board.

[0047] It is important to understand that the LEDs on the PCB are arranged in a regular pattern, and the main signal LEDs and the backup signal LEDs are arranged in an alternating or adjacent manner. This layout design not only optimizes space utilization, but also allows the backup signal LEDs to quickly and seamlessly take over when the main signal LEDs fail, ensuring the continuity and stability of the entire LED group and providing a physical basis for flexible switching and backup mechanisms for the LEDs.

[0048] More importantly, each LED is assigned a unique two-dimensional coordinate on the PCB board. This means that regardless of the installation, disassembly, or repair process the circuit undergoes, as long as the PCB board remains intact, the position and identity of each LED can be accurately identified and recorded. This feature is crucial for achieving long-term, stable lighting control and provides a solid foundation for subsequent circuit expansion and upgrades.

[0049] Additionally, this utility model embodiment provides an LED bead for a built-in IC, comprising: an LED bead housing; a light-emitting chip disposed within the LED bead housing for emitting light for display; and a driver IC disposed within the LED bead housing and connected to the light-emitting chip, the driver IC having a main signal terminal and a backup signal terminal, the main signal terminal being used to receive an input main signal, and the backup signal terminal being used to receive an input backup signal when the main signal terminal does not receive an input main signal.

[0050] First, the LED chip includes a housing, which serves as a protective layer for the light-emitting element and circuit components, ensuring the stability and safety of the internal structure. Preferably, at least three light-emitting chips are housed within this housing.

[0051] Next, closely connected to these LED chips is a driver IC, also housed within the LED chip housing. Specifically, this driver IC features two critical signal receivers: a main signal receiver, which receives the main input signal under normal conditions to control the LED chip to emit light according to a predetermined pattern; and a backup signal receiver, which is activated immediately when the main signal receiver fails to receive the main signal due to a malfunction or other reason, receiving the backup input signal to ensure the LED chip can emit light continuously and stably.

[0052] It's important to clarify that the LEDs are arranged systematically on a PCB board. This PCB board not only provides stable support for the LEDs but also enables signal transmission and power supply between them through its circuit connections. More importantly, each LED is assigned a unique two-dimensional coordinate on the PCB board. This design not only facilitates precise positioning and control of specific LEDs but also greatly simplifies subsequent circuit debugging, maintenance, and upgrades.

[0053] In one specific embodiment, reference is made to Figure 1 and Figure 2 This invention features two redundant light groups, with identical and one-to-one matching LEDs in each group. Under normal circumstances, only group A (A1, A2...An) is active, responsible for emitting light. Group B (B1, B2...Bn) is in standby mode and does not participate in emitting light.

[0054] When a lamp in group A (such as A1) fails, the controller will immediately detect the fault.

[0055] Subsequently, the controller will activate the corresponding LED in group B (i.e., B1) to replace the failed A1 LED, ensuring that the overall display effect is not affected. This fault switching is automatic and instantaneous, requiring no manual intervention.

[0056] If too many LEDs in group A fail, reaching a preset threshold, further measures can be taken. In this case, the controller will set group B LEDs as the main signal LEDs, taking over all the illumination and display tasks. Group A LEDs will be temporarily turned off or placed in standby mode, awaiting repair or replacement.

[0057] Since the system / device described in the above embodiments of this utility model is a system / device used to implement the method of the above embodiments of this utility model, those skilled in the art can understand the specific structure and modifications of the system / device based on the method described in the above embodiments of this utility model, and therefore will not be described again here. All systems / devices used in the method of the above embodiments of this utility model fall within the scope of protection of this utility model.

[0058] Those skilled in the art will understand that embodiments of this invention can be provided as methods, systems, or computer program products. Therefore, this invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0059] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, as well as combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions.

[0060] It should be noted that any reference numerals placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. This invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In claims that enumerate several means, several of these means may be embodied by the same hardware. The use of the terms first, second, third, etc., is merely for convenience of expression and does not indicate any order. These terms can be understood as part of the component names.

[0061] Furthermore, it should be noted that 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 this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, 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.

[0062] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning of the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the claims should be interpreted to include both the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0063] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, then this utility model should also include these modifications and variations.

Claims

1. A backup circuit for LED beads with built-in ICs, characterized in that, include: The main lighting unit consists of multiple LEDs arranged in a specific position; The backup light group contains multiple LEDs arranged in a specific position, and the LEDs in the backup light group correspond one-to-one with the LEDs in the main light group. The controller, connected to all LEDs, is used to detect the working status of the LEDs in the main LED group. When it detects that any one or more LEDs in the main LED group have failed, it activates the corresponding LED in the backup LED group to replace the LED in the failed main LED group to emit light.

2. The backup circuit for LED beads with built-in IC as described in claim 1, characterized in that, The LEDs in both the main and standby light groups include: LED bead housing; The lamp bead body is placed inside the lamp bead housing; The light-emitting chip, placed inside the LED bead housing, is connected to the LED bead body. The driver IC, located inside the LED housing, is connected to the controller and the LED chip respectively, and is used to enable or disable the corresponding LED chip.

3. The backup circuit for LED beads with built-in IC as described in claim 2, characterized in that, The driver IC includes: One main signal terminal is used to receive the main signal input from the controller; A backup signal terminal is used to receive the backup signal input from the controller when the main signal terminal does not receive the main signal input from the controller.

4. The backup circuit for LED beads with built-in IC as described in claim 2, characterized in that, Each LED bead has at least three light-emitting chips.

5. The backup circuit for an LED chip with a built-in IC as described in any one of claims 1-4, characterized in that, Also includes: The PCB board contains all the LEDs, and each LED has a unique two-dimensional coordinate on the PCB board.

6. A type of LED bead for use with an integrated IC, characterized in that, include: LED bead housing; The lamp bead body is placed inside the lamp bead housing; The light-emitting chip, placed inside the LED bead housing, is connected to the LED bead body. The driver IC, which is located inside the LED housing and connected to the light-emitting chip, has a main signal terminal and a backup signal terminal. The main signal terminal is used to receive the input main signal, and the backup signal terminal is used to receive the input backup signal when the main signal terminal does not receive the input main signal.

7. The LED bead for an integrated IC as described in claim 6, characterized in that, Each LED bead has at least three light-emitting chips.

8. The LED bead for an embedded IC as described in claim 6 or 7, characterized in that, All LEDs are arranged on the PCB board, and each LED has a unique two-dimensional coordinate on the PCB board.

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