LED display screen signal detection device
By integrating data cables and replaceable adapters into the support frame, the problem of frequent data cable replacements for multi-interface signals in traditional display screen testing is solved, achieving efficient and reliable multi-interface signal testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG XINDI OPTOELECTRONICS TECH CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-28
AI Technical Summary
In traditional display screen testing, the detection of multiple interface signals requires frequent replacement of data cables, which increases operational complexity and human error, affects the accuracy of test results, and also occupies space and costs.
The system integrates the data cable and replaceable adapter with a support frame. The data cable has plugs at both ends, and the adapter is fixed to the support frame by magnetic attraction, enabling unified detection of signals from multiple interfaces and simplifying the interface adaptation process.
It enables unified detection of signals from multiple interfaces, improving detection efficiency, reducing wire loss, and enhancing operational reliability and the accuracy of detection results.
Smart Images

Figure CN224569120U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display screen testing technology, and in particular to an LED display screen signal testing device. Background Technology
[0002] Display signal detection is a technical means to test and analyze whether the input signal and display effect of various LCD screens, LED screens or OLED screens are consistent during operation. Its core is to use a detection circuit to sample and compare the input image signal, timing signal, voltage and current and data transmission stability in real time, so as to determine whether the display screen has problems such as signal loss, delay, distortion, flicker, screen distortion or color deviation.
[0003] Traditional displays often have multiple data input interfaces, requiring different data cables to be matched and connected to signal sources one by one during testing. This not only increases the complexity of manual plugging and unplugging and cable switching, but also often requires multiple sets of testing equipment and redundant cables for multi-interface signal compatibility verification. This not only occupies space and costs, but may also affect the accuracy of test results due to human error, thus limiting the need for rapid testing on large-scale production lines and efficient debugging during the R&D stage. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an LED display signal detection device, including a support frame, and further including: a data cable, the data cable including a wire body disposed on the upper part of the support frame, plugs fixedly connected to both sides of the wire body, one of the plugs being used to plug into a host; adapters, the adapters being provided in multiple ways, the multiple adapters being magnetically mounted on the support frame; in use, the adapter corresponding to the test screen is removed, and the adapter is plugged into another plug.
[0006] In at least some embodiments, the support frame includes a support plate fixed to the workbench position, and a screw is slidably mounted inside the upper support seat of the support plate.
[0007] In at least some embodiments, the screw passes through the support base and presses against the support plate to perform a limiting action, and a crossbar is fixedly connected to one side of the support base for placing the data cable.
[0008] In at least some embodiments, a mounting base is fixedly installed on the upper part of the support frame, and the cable is elastically wound inside a shrinker fixedly installed on one side of the mounting base, so that the cable is pulled when in use.
[0009] In at least some embodiments, a plurality of first magnetic blocks are fixedly installed on the upper part of the support frame, and a second magnetic block fixed on one side of the adapter is magnetically connected to the first magnetic blocks.
[0010] In at least some embodiments, pressure plates are slidably mounted on both sides of the adapter, and a slide rod is fixedly connected to the inner side of each pressure plate. The plug is inserted into a limiting plate slidably mounted inside the adapter. The slide rod is slidably mounted inside a sleeve fixed to one side of the limiting plate. A spring is provided between the pressure plate and the limiting plate. In use, the spring drives the limiting plate to engage with the plug and perform a movable limiting action. Pressing the pressure plate achieves a tight insertion action between the limiting plate and the plug, and the adapter and the plug are fixedly installed. When disassembling the adapter, the user touches the button on the pressure plate, and the adapter can be pulled off the plug.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this utility model, a support frame is used as a basic bearing platform to integrate data cables and replaceable adapters on the same device to achieve unified detection of multi-interface signals. The data cable is fixed to the upper part of the support frame, and plugs are provided at both ends of the cable. One end is fixed for connection to the host to ensure a unified output source of detection signals, and the other end is reserved for docking with different adapters. Multiple adapters are pre-formed according to different display screen interface types and fixed to the support frame by magnetic attraction, which can achieve neat storage and ensure quick disassembly and assembly when replacing. When testing a specific model of LED display screen, the testing personnel only need to remove the corresponding interface adapter from the support frame, plug it into the other end of the data cable, and complete the adaptation connection with the display screen input interface. This avoids the tedious process of frequently changing multiple data cables with different interfaces in traditional testing. The detection signals are uniformly output through the host and transmitted to the display screen via data cables and adapters, realizing multi-interface signal adaptation detection on a single platform, improving detection efficiency, reducing cable loss, and enhancing operational reliability. Attached Figure Description
[0012] Figure 1 This utility model provides a three-dimensional structural schematic diagram of an LED display signal detection device; Figure 2 This utility model provides a three-dimensional structural diagram of the data line portion in an LED display signal detection device; Figure 3 This utility model provides a three-dimensional structural diagram of the internal structure of the adapter in an LED display signal detection device; Figure 4This invention provides a three-dimensional structural diagram of a support frame in an LED display signal detection device.
[0013] Legend: 1. Support frame; 2. Mounting base; 3. First magnetic block; 4. Shrink coil; 5. Data cable; 6. Second magnetic block; 7. Adapter; 101. Support plate; 102. Support base; 103. Screw; 104. Crossbar; 501. Cable body; 502. Plug; 701. Pressure plate; 702. Slide rod; 703. Limiting plate; 704. Sleeve. Detailed Implementation
[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0016] Implementation examples, based on Figures 1-4 As shown in the figure, the LED display signal detection device provided in this embodiment of the utility model includes a support frame 1, and further includes: a data cable 5, the data cable 5 includes a wire body 501 disposed on the upper part of the support frame 1, and plugs 502 are fixedly connected to both sides of the wire body 501, one of the plugs 502 being used to plug into the host; an adapter 7, multiple adapters 7 are provided, and multiple adapters 7 are magnetically mounted on the support frame 1; in use, the adapter 7 corresponding to the test screen is removed, and the adapter 7 is plugged into another plug 502.
[0017] The aforementioned LED display signal detection device uses a support frame 1 as a basic support platform to integrate a data cable 5 and a replaceable adapter 7 onto the same device, thereby achieving unified detection of multi-interface signals. The cable body 501 of the data cable 5 is fixed to the upper part of the support frame 1, and each end of the cable body 501 is provided with a plug 502. One end is fixed for connection to the host to ensure a unified output source of the detection signal, while the other end is reserved for docking with different adapters 7. Multiple adapters 7 are pre-formed according to different display interface types and are fixed to the support frame 1 by magnetic attraction, which can achieve neat storage and ensure quick disassembly and assembly during replacement. When testing a specific model of LED display screen, the testing personnel only need to remove the corresponding interface adapter 7 from the support frame 1 and plug it into the other end plug 502 of the data cable 5 to complete the adaptation connection with the display screen's input interface. This avoids the tedious process of frequently changing multiple data cables 5 with different interfaces in traditional testing. The test signals are uniformly output through the host and transmitted to the display screen via the data cable 5 and adapter 7, realizing multi-interface signal adaptation testing on a single platform, improving testing efficiency, reducing cable loss, and enhancing operational reliability.
[0018] In this embodiment, the support frame 1 includes a support plate 101 fixed at the workbench position. A screw 103 is slidably mounted inside the upper support seat 102 of the support plate 101 and screwed in. The screw 103 passes through the support seat 102 and presses against the support plate 101 to perform a limiting action. A crossbar 104 is fixedly connected to one side of the support seat 102. The crossbar 104 is used to place the data cable 5. A mounting base 2 is fixedly mounted on the upper part of the support frame 1. A retractor 4 fixedly mounted on one side of the mounting base 2 has an elastic winding cable body 501 that can be pulled when in use. Several first magnetic blocks 3 are fixedly mounted on the upper part of the support frame 1. A second magnetic block 6 fixed on one side of the adapter 7 is magnetically connected to the first magnetic blocks 3.
[0019] The support frame 1 enables unified storage and orderly management of the data cable 5 and the adapter 7. The support frame 1 is based on a support plate 101 fixed on the workbench. A support seat 102 is movably installed on the upper part of the support plate 101. A screw 103 is screwed into the support seat 102. When the screw 103 is pressed down, it can form a pressing limit with the support plate 101 to prevent the support seat 102 from shaking or shifting during operation and to ensure the stability of the device. A crossbar 104 is provided on one side of the support base 102 to support or temporarily place the data cable 5, keeping the cable 501 neat and preventing the cable from getting tangled; a retractor 4 is provided in the mounting base 2 installed on the upper part of the support frame 1. The retractor 4 elastically winds up the data cable 501 inside. When using it, the user can pull the cable 501 to extend it to the required length. After use, it will be automatically retracted under the elastic force of the retractor 4, which is convenient to operate and reduces wear on the cable 501. In addition, several first magnetic blocks 3 are installed on the upper part of the support frame 1, which, together with the second magnetic blocks 6 fixed on the adapter 7, enable the adapter 7 to be neatly stored on the support frame 1 by magnetic adsorption. This not only enables quick access but also ensures that the adapter 7 remains stably stored when not in use, thus forming a convenient and reliable management and use platform for multi-interface data cables 5.
[0020] In this embodiment, pressure plates 701 are slidably installed on both sides of the adapter 7. A slide rod 702 is fixedly connected to the inner side of each pressure plate 701. A plug 502 is fitted into one side of a limiting plate 703 slidably installed inside the adapter 7. The slide rod 702 is slidably installed inside a sleeve 704 fixed to one side of the limiting plate 703. A spring is provided between the pressure plate 701 and the limiting plate 703. In use, the spring drives the limiting plate 703 to fit against the plug 502 and perform a movable limiting action. Pressing the pressure plate 701 achieves a tight insertion action between the limiting plate 703 and the plug 502. The adapter 7 and the plug 502 are fixedly installed. When disassembling the adapter 7, the user touches the button on the pressure plate 701, and the adapter 7 can be pulled off the plug 502.
[0021] A quick and reliable connection and fixation is achieved through the limiting and elastic clamping mechanism between the adapter 7 and the plug 502. Specifically, the adapter 7 is provided with sliding pressure plates 701 on both sides. Each pressure plate 701 is connected to a slide rod 702 on its inner side. The slide rod 702 passes through and cooperates with the limiting plate 703 installed inside the adapter 7. The limiting plate 703 has a socket on one side to match the shape of the plug 502 and form a guide insertion. On the other side of the limiting plate 703, there is also a sleeve 704, and a slide rod 702 can be slidably installed inside the sleeve 704, so as to ensure that the thrust transmitted by the pressure plate 701 during operation can drive the limiting plate 703 to move. A spring is arranged between the limiting plate 703 and the pressure plate 701. The function of the spring is to drive the limiting plate 703 to always be close to the plug 502, so that automatic elastic limiting and fastening force can be formed when the plug 502 is inserted. In use, the user only needs to push the plug 502 into the adapter 7, and the spring will automatically press the limiting plate 703 to make the plug 502 and the adapter 7 make tight contact and complete stable fixation. When disassembly is required, simply stop pressing the buttons on both sides of the pressure plate 701, and the plug 502 will drive the limiting plate 703 to disengage from its own limiting groove. The user can then easily pull the adapter 7 out of the plug 502, thus realizing a highly efficient connection method that allows for quick plugging and unplugging, reliable limiting, and reusability.
[0022] The working principle of this utility model is as follows: Using a support frame 1 as a basic load-bearing platform, the data cable 5 and replaceable adapters 7 are integrated onto the same device to achieve unified detection of multi-interface signals. The cable body 501 of the data cable 5 is fixed to the upper part of the support frame 1, with plugs 502 at both ends. One end is fixed for connection to the host computer, ensuring a unified output source for the detection signals; the other end is reserved for docking with different adapters 7. Multiple adapters 7 are pre-formed according to different display screen interface types and magnetically fixed to the support frame 1, achieving both neat storage and... It ensures quick disassembly and assembly during replacement; when testing a certain model of LED display screen, the tester only needs to remove the corresponding interface adapter 7 from the support frame 1 and plug it into the other end plug 502 of the data cable 5 to complete the adaptation connection with the display screen input interface, thus avoiding the cumbersome process of frequently changing multiple data cables 5 with different interfaces in traditional testing; the test signal is uniformly output through the host and transmitted to the display screen via the data cable 5 and adapter 7, realizing multi-interface signal adaptation testing on a single platform, improving testing efficiency, reducing cable loss and improving operational reliability.
[0023] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A signal detection device for an LED display screen, comprising a support frame (1), characterized in that, Also includes: The data cable (5) includes a cable body (501) disposed on the upper part of the support frame (1), and plugs (502) are fixedly connected to both sides of the cable body (501), one of the plugs (502) being used to plug into the host. Adapter (7), multiple adapters (7) are provided, and multiple adapters (7) are magnetically mounted on the support frame (1); When in use, remove the adapter (7) corresponding to the test screen and plug the adapter (7) into another plug (502).
2. The LED display signal detection device according to claim 1, characterized in that: The support frame (1) includes a support plate (101) fixed at the workbench position, and a screw (103) is screwed into the upper support seat (102) of the support plate (101).
3. The LED display signal detection device according to claim 2, characterized in that: The screw (103) passes through the support base (102) and presses against the support plate (101) to perform a limiting action. A crossbar (104) is fixedly connected to one side of the support base (102), and the crossbar (104) is used to place the data cable (5).
4. The LED display signal detection device according to claim 1, characterized in that: The support frame (1) is fixedly mounted with a mounting base (2), and the shrinker (4) fixedly mounted on one side of the mounting base (2) elastically winds up the line (501), and the line (501) is pulled when in use.
5. The LED display signal detection device according to claim 1, characterized in that: A number of first magnetic blocks (3) are fixedly installed on the upper part of the support frame (1), and a second magnetic block (6) fixed on one side of the adapter (7) is magnetically connected to the first magnetic block (3).
6. The LED display signal detection device according to claim 1, characterized in that: The adapter (7) is slidably mounted on both sides of the adapter (7). Each pressure plate (701) is fixedly connected to a slide rod (702) on its inner side. The plug (502) is inserted into one side of the limiting plate (703) slidably mounted inside the adapter (7). The slide rod (702) is slidably mounted inside the sleeve (704) fixed to one side of the limiting plate (703). A spring is provided between the pressure plate (701) and the limiting plate (703). When in use, the spring drives the limiting plate (703) to fit against the plug (502) to perform a movable limiting action. Pressing the pressure plate (701) realizes the tight insertion action of the limiting plate (703) and the plug (502). The adapter (7) and the plug (502) are fixedly installed. When disassembling the adapter (7), the user touches the button on the pressure plate (701), and the adapter (7) can be pulled off the plug (502).