A portable LCD panel lighting test device

Abstract

This utility model relates to a movable LCD panel illumination testing device, comprising components such as a clamp, a slide, a buffer device, a circuit board, a connector, a flexible circuit board, a clamping screw, and a spring. The clamp is used to connect to the LCD screen, the slide is disposed on the clamp, the buffer device includes a slider and a pressure head that can move within the slide, the circuit board contains a detection circuit, and the connector and flexible circuit board are used for docking with the LCD screen. The clamping screw and spring are used to fix the position of the buffer device. This device, through its adjustable buffer device and slide design, can flexibly adapt to LCD screens of different sizes and models, improving the efficiency and accuracy of illumination testing.

Description

Technical Field

[0001] This utility model relates to the technical field of movable LCD panel lighting test device, and in particular to a movable LCD panel lighting test device. Background Technology

[0002] As a crucial component of modern electronic devices, the quality and performance of LCD screens directly impact the user experience of end products. In the production process, lamp-on testing is a vital step in verifying the functionality of LCD panels, detecting key indicators such as brightness, color uniformity, and dead pixels. However, existing LCD panel lamp-on testing equipment suffers from several shortcomings in practical applications: Fixed structure and poor adaptability: Traditional testing devices often have fixed structures, unable to flexibly adapt to different sizes and models of LCD screens. Each time the test object is changed, cumbersome adjustments are required, severely impacting production efficiency. Limited testing range: Due to design limitations, existing devices often can only test LCD panels of specific sizes or models, failing to meet the needs of diverse production lines. Utility Model Content

[0003] The purpose of this invention is to provide a movable LCD panel lighting test device, thereby solving the aforementioned problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A portable LCD panel illumination testing device, comprising:

[0006] A clamp for connecting to an LCD screen;

[0007] A chute, mounted on the clamp, is used to accommodate the buffer device;

[0008] A buffer device includes a slider and a pressure head. The slider is disposed in a slide groove and can move along the slide groove. The pressure head is disposed at one end of the buffer device adjacent to the slide groove and is connected to the slider.

[0009] A circuit board, located at the end of the clamp away from the buffer device, contains detection circuitry.

[0010] Connectors, fixed to the circuit board, are used to connect flexible circuit boards;

[0011] The flexible circuit board is connected to a connector at one end and docked with an LCD screen at the other end.

[0012] The clamping screws are located on both sides of the buffer device, and springs are fitted on them to fix the position of the buffer device in the slide groove.

[0013] The number and position of the buffer devices can be adjusted according to the size and model of the LCD screen to meet the testing requirements of different models of LCD screens.

[0014] In some specific embodiments, the slide groove adopts an inverted T-shaped structure and is set at the top of the fixture. The slider and the buffer device also form an inverted T-shaped structure, which fits into the shape of the slide groove.

[0015] In some specific embodiments, the slider of the buffer device is disposed in the groove, and the pressure head is connected to the slider by a spring. The pressure head is located at the front end of the buffer device and can move within a certain range.

[0016] In some specific embodiments, the clamping screw adopts a double-layer self-locking screw or a spring-loaded flat washer combination screw structure.

[0017] In some specific embodiments, the connector is located at the edge of the circuit board.

[0018] In some specific embodiments, it further includes: a cow horn; located at the front end of the circuit board;

[0019] Based on the design of the testing screen, one end of the horn-shaped connector is soldered onto the circuit board, while the other end has several ports that connect to the LCD screen.

[0020] In some specific embodiments, the number of buffer devices can be increased or decreased as needed, and disassembly and installation can be achieved by adjusting the clamping screws. The buffer devices are arranged along the length of the slide.

[0021] In some specific embodiments, the length of the chute is designed according to the range of movement of the buffer device, and the chute extends through the entire top length of the fixture.

[0022] In some specific embodiments, the spring is made of 304 stainless steel and is set inside the buffer device to provide a stable clamping force. One end of the spring is fixed to the slider and the other end is fixed to the pressure head.

[0023] In some specific embodiments, the bottom of the clamp is provided with an adjusting screw to accommodate LCD screens of different thicknesses.

[0024] The beneficial effects of this utility model are as follows: This utility model relates to a movable LCD panel lighting test device, including components such as a clamp, a slide, a buffer device, a circuit board, a connector, a flexible circuit board, a clamping screw, and a spring; the clamp is used to connect to the LCD screen, the slide is set on the clamp, the buffer device includes a slider and a pressure head, which can move within the slide, the circuit board includes a detection circuit, and the connector and flexible circuit board are used to interface with the LCD screen; the clamping screw and spring are used to fix the position of the buffer device. The beneficial effects of this utility model are:

[0025] Flexible adaptability: The number and position of the buffer devices can be adjusted according to the size and model of the LCD screen. The length and structural design of the slide can adapt to different models of LCD screens, greatly improving the versatility and flexibility of the device.

[0026] High-efficiency testing: Through the movable buffer device and slide design, the device can quickly and accurately connect to different LCD screens, shortening test preparation time and improving test efficiency.

[0027] Stable and reliable: The device adopts a combination of 304 stainless steel springs and double-layered self-locking screws or spring flat washers to ensure the stability and reliability of the device during the testing process and reduce testing errors caused by device instability.

[0028] Easy to operate: The buffer device can be disassembled and installed by adjusting the clamping screw, which is simple to operate and easy to maintain and replace parts.

[0029] Wide applicability: The device is equipped with an adjustment screw at the bottom, which can accommodate LCD screens of different thicknesses, further expanding its applicability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a movable LCD panel lighting test device according to the present invention;

[0031] Figure 2 This is a structural schematic diagram of the cross-sectional isometric view of the fixture of this utility model;

[0032] Figure 3 This is a structural schematic diagram of the cross-sectional view of the fixture of this utility model;

[0033] Figure 4 This is a schematic diagram of the pressure head in the relaxed state of this utility model;

[0034] Figure 5 This is a structural schematic diagram of the disassembled moving end of the buffer device of this utility model;

[0035] Figure 6 This is a structural schematic diagram of the jig of this utility model from the rear view.

[0036] In the attached diagram, 1 is a clamp; 2 is a slide; 3 is a buffer device; 4 is a slider; 5 is a pressure head; 6 is a circuit board; 7 is a connector; 8 is a flexible circuit board; 9 is a clamping screw; 10 is a spring; and 11 is a bull's horn. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0038] Reference Figures 1 to 6 The movable LCD panel illumination test device shown includes:

[0039] Clamp 1 is used for connecting to the LCD screen;

[0040] The slide 2 is set on the clamp 1 to accommodate the buffer device 3;

[0041] The buffer device 3 includes a slider 4 and a pressure head 5. The slider 4 is disposed in the slide groove 2 and can move along the slide groove 2. The pressure head is disposed at one end of the buffer device adjacent to the slide groove 2, and the pressure head 5 is connected to the slider 4.

[0042] Circuit board 6, located at the end of clamp 1 away from the buffer device, includes detection circuitry;

[0043] Connector 7, fixed on circuit board 6, is used to connect flexible circuit board 8;

[0044] The flexible circuit board 8 is connected to the connector 7 at one end and to the LCD screen at the other end;

[0045] The clamping screws 9 are located on both sides of the buffer device 3, and springs 10 are fitted on them to fix the position of the buffer device 3 in the slide groove 2.

[0046] The number and position of the buffer devices 3 can be adjusted according to the size and model of the LCD screen to meet the testing requirements of different models of LCD screens.

[0047] This structural design aims to provide an efficient, flexible, and highly adaptable testing solution. The components of the device, their connections, and their locations are as follows:

[0048] Fixture 1: The fixture is the foundation of the testing setup, used for a secure connection to the LCD screen. It is typically made of robust and durable materials to ensure the screen is firmly held in place during testing, preventing displacement or shaking from affecting the test results. The fixture is usually located in the center or on one side of the setup for easy docking with the LCD screen.

[0049] Slide 2: The slide is located at the top of the fixture and is designed with an inverted T-shape to fit the shape of the buffer device. The function of the slide is to accommodate and guide the buffer device along a specific path for lighting tests on different areas of the LCD screen. The slide is typically located at the top of the fixture to facilitate the movement and positioning of the buffer device.

[0050] Buffer Device 3: The buffer device is the core component of the testing device, comprising a slider 4 and a pressure head 5. The slider 4 is positioned within the slide groove 2 and can move along it. The pressure head 5 is located at one end of the buffer device adjacent to the slide groove and is connected to the slider. The number and position of the buffer devices can be adjusted according to the size and model of the LCD screen to meet the testing requirements of different LCD screen models.

[0051] Circuit Board 6: The circuit board is located at the other end of the fixture, away from the buffer device. It contains the necessary detection circuitry for controlling the lamp-lighting test process and collecting test data. The circuit board is designed for compactness and efficiency to integrate multiple functions within a limited space. The circuit board is typically located at the bottom or side of the fixture for easy connection to connectors and flexible circuit boards.

[0052] Connector 7: This connector is fixed to the circuit board and used to connect to the flexible circuit board. Its design ensures a reliable connection with the flexible circuit board while facilitating quick disassembly and replacement to meet different testing needs. The connector is typically located at the edge of the circuit board for easy connection to the flexible circuit board.

[0053] Flexible Circuit Board 8: One end of the flexible circuit board connects to the connector, and the other end interfaces with the LCD screen. Its design allows for a stable electrical connection between the circuit board and the display screen while maintaining sufficient flexibility to adapt to the curvature or shape of the display screen. The flexible circuit board is typically positioned between the connector and the LCD screen to facilitate the establishment of the electrical connection.

[0054] Clamping screws 9 and springs 10: The clamping screws are located on both sides of the buffer device, and the springs provide a stable clamping force to fix the buffer device in position within the groove. This design ensures the stability of the buffer device during testing, while allowing the position of the buffer device to be adjusted by adjusting the screws to accommodate LCD screens of different thicknesses. The clamping screws and springs are typically located on both sides of the buffer device for easy fixing and adjustment of its position.

[0055] Overall, this portable LCD panel backlight testing device is designed with careful consideration of the connection relationships and placement of its components to achieve an efficient, flexible, and adaptable testing solution. By adjusting the number and position of the buffer devices, the device can meet diverse testing needs, providing a reliable solution for LCD production and quality control.

[0056] In some specific embodiments, the slide 2 adopts an inverted T-shaped structure and is set at the top of the clamp 1. The slider 4 and the buffer device 3 also form an inverted T-shaped structure, which fits into the shape of the slide 2.

[0057] In this embodiment, the slide 2 adopts an inverted T-shaped structure. This design allows the slide to be stably positioned at the top of the clamp 1, providing stable support and guidance for the buffer device 3. The slider 4 and the buffer device 3 are also designed with an inverted T-shaped structure, perfectly fitting the shape of the slide 2. This design ensures that the buffer device can move smoothly within the slide while maintaining good stability, thereby enabling accurate testing of different areas of the liquid crystal display screen.

[0058] In some specific embodiments, the slider 4 of the buffer device 3 is disposed in the groove 2, and the pressure head 5 is connected to the slider 4 through the spring 10. The pressure head 5 is located at the front end of the buffer device 3 and can move within a certain range.

[0059] In this embodiment, the pressure head 5 is located at the front end of the buffer device 3 and can move within a certain range. This design allows the testing device to adjust the position and force of the pressure head as needed to accommodate LCD screens of different sizes and models. The use of the spring 10 provides a stable clamping force, ensuring the stability and reliability of the pressure head during the testing process.

[0060] In some specific embodiments, the clamping screw 9 adopts a double-layer self-locking screw or a spring-loaded flat washer combination screw structure.

[0061] In this embodiment, this design allows the clamping screw to provide stronger fixing force, ensuring the stability of the buffer device 3 within the slide groove 2. Simultaneously, this structure facilitates quick disassembly and installation by operators, improving the efficiency of the testing device.

[0062] In some specific embodiments, the connector 7 is located at the edge of the circuit board 6.

[0063] In this embodiment, this design allows the connector to be easily connected to the flexible circuit board 8 while maintaining the overall compactness of the circuit board. The connector's location was chosen with ease of operation and space utilization efficiency in mind.

[0064] In some specific embodiments, it also includes: a cow horn 11; located at the front end of the circuit board 6;

[0065] According to the design of the detection screen, one end of the horn 11 is soldered onto the circuit board 6, and the other end of the interface has several plugs to connect with the LCD screen.

[0066] In this embodiment, this design enables the horn to provide a stable interface, ensuring a reliable electrical connection between the circuit board and the LCD screen.

[0067] In some specific embodiments, the number of buffer devices 3 can be increased or decreased as needed, and can be disassembled and installed by adjusting the clamping screws 9. The buffer devices 3 are arranged along the length of the slide groove 2.

[0068] In this embodiment, the number of buffer devices 3 can be increased or decreased as needed, and disassembly and installation can be achieved by adjusting the clamping screws 9. The buffer devices 3 are arranged along the length of the slide 2. This design allows the testing device to be adjusted according to the size and shape of the liquid crystal display screen, improving the adaptability and flexibility of the testing device.

[0069] In some specific embodiments, the length of the chute 2 is designed according to the range of movement of the buffer device 3, and the chute 2 extends through the entire top length of the clamp 1.

[0070] In this embodiment, this design ensures that the buffer device 3 can move across the entire liquid crystal display screen, thereby enabling comprehensive testing of the display screen.

[0071] In some specific embodiments, the spring 10 is made of 304 stainless steel and is set inside the buffer device 3 to provide a stable clamping force. One end of the spring 10 is fixed to the slider 4 and the other end is fixed to the pressure head 5.

[0072] In this embodiment, the spring 10 is made of 304 stainless steel, which has good elasticity and corrosion resistance, and can provide stable clamping force. The spring 10 is set inside the buffer device 3, with one end fixed to the slider 4 and the other end fixed to the pressure head 5, ensuring the stability and reliability of the buffer device during the test.

[0073] In some specific embodiments, the bottom of the clamp 1 is provided with an adjusting screw to accommodate liquid crystal displays of different thicknesses.

[0074] In this embodiment, this design allows the testing device to be adjusted according to the thickness of the liquid crystal display screen, improving the versatility and adaptability of the testing device.

[0075] The movable LCD panel illumination test device of this invention achieves illumination test of the LCD screen through the following working principle:

[0076] Connection and Fixing: First, connect fixture 1 to the LCD screen under test, ensuring the screen is securely fixed to the testing device. The adjusting screws at the bottom of the fixture can be used to adjust for LCD screens of different thicknesses.

[0077] Buffer device positioning: Adjust the number and position of the buffer devices 3 according to the size and model of the LCD screen. The buffer devices move within the slide groove 2 via the slider 4 and are finally positioned above the area of ​​the display screen to be tested.

[0078] Applying pressure: The clamping screw 9 is tightened, and the spring 10 applies uniform pressure to the buffer device 3, so that the pressure head 5 contacts the surface of the liquid crystal display screen, preparing for the lamp test.

[0079] Electrical connection: Connector 7 on circuit board 6 is connected to flexible circuit board 8, and the other end of flexible circuit board is connected to LCD screen to establish electrical connection.

[0080] Illumination Test: The detection circuit on circuit board 6 starts working, sending signals to the LCD screen to illuminate the pixels on the screen. Simultaneously, the detection circuit collects the screen's response data to analyze the screen's illumination performance.

[0081] Data Analysis and Result Output: The detection circuit analyzes the collected data to evaluate the illumination effect of the LCD screen, such as brightness and uniformity. The analysis results can be output through the interface on the circuit board for further processing by operators or automated systems.

[0082] Work methods:

[0083] Preparation stage: Place the LCD screen on fixture 1 and adjust the adjusting screws at the bottom of the fixture to accommodate the thickness of the screen.

[0084] Buffer device adjustment: According to the test requirements, move the buffer device 3 along the slide 2 and fix it in the appropriate position using the clamping screw 9.

[0085] Electrical connection establishment: Connect the flexible circuit board 8 to the connector 7 on the circuit board 6, and ensure that the other end of the flexible circuit board is properly aligned with the LCD screen.

[0086] Startup Test: Activate the detection circuit on circuit board 6 to begin the LED lighting test. Observe the LED display and record the test data.

[0087] Results Evaluation: After the test is completed, analyze the data collected by the detection circuit, evaluate the illumination performance of the LCD screen, and record or output the test results as needed.

[0088] Example:

[0089] Testing a small-sized LCD screen: Place the small-sized LCD screen on fixture 1 and adjust the adjusting screws at the bottom of the fixture. Depending on the size of the screen, move a buffer device 3 along the slide 2 to a suitable position and secure it with the clamping screw 9. After establishing the electrical connection, start the detection circuit to perform an illumination test and record the test results.

[0090] Testing large-size LCD screens: For large-size LCD screens, multiple buffer devices 3 may be needed to cover the entire screen. Adjust the position of each buffer device and ensure they are evenly distributed on the slide 2. After completing the electrical connections, perform a lamp-on test and analyze the test data to evaluate the screen's performance.

[0091] Quickly change the test object: When it is necessary to change the test object, loosen the clamping screw 9 and remove the buffer device 3 along the slide 2. After replacing the LCD screen, readjust the position of the buffer device and conduct a new round of lamp-lighting tests.

[0092] Based on the above working principle, working method and embodiments, the movable LCD panel lighting test device of this utility model can efficiently and flexibly complete the lighting test of LCD screens of different sizes and models, thus improving the testing efficiency and accuracy.

[0093] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0094] Improved testing efficiency: With its movable buffer device and slide design, the device can quickly adapt to LCD screens of different sizes and models, reducing test preparation time and improving testing efficiency.

[0095] Enhanced adaptability: The number and position of the buffer devices can be adjusted according to the size and model of the LCD screen. The length and structural design of the slide allow it to adapt to different models of LCD screens, greatly improving the versatility and adaptability of the device.

[0096] To ensure test accuracy: The device employs a combination of 304 stainless steel springs and double-layered self-locking screws or spring-loaded flat washers, ensuring stability and reliability during testing and reducing test errors caused by device instability.

[0097] Easy to operate: The buffer device can be disassembled and installed by adjusting the clamping screw, which is easy to operate, facilitates maintenance and replacement of parts, and reduces the difficulty of operation and training costs.

[0098] Reduced maintenance costs: The device has a simple structure, making maintenance and replacement of parts convenient, which reduces maintenance costs and downtime, and improves production efficiency.

[0099] Improve product quality: Through precise lamp testing, problems with the LCD screen, such as dead pixels and uneven brightness, can be detected in a timely manner, thereby improving product quality.

[0100] Adapting to diverse production needs: The equipment can accommodate LCD screens of different sizes and models, meeting the needs of diverse production lines and improving production flexibility.

[0101] Increase the level of production automation: The design of the device facilitates integration with automated production lines, thereby increasing the level of production automation and reducing the need for manual intervention.

[0102] Enhancing Enterprise Competitiveness: By improving testing efficiency, accuracy, and product quality, this portable LCD panel lighting test device can help enterprises improve product quality and production efficiency, thereby enhancing their competitiveness.

[0103] Reduced environmental impact: By improving resource utilization and reducing energy consumption, the testing device of this utility model helps to reduce the environmental impact of the production process, which meets the requirements of sustainable development.

[0104] In summary, the movable LCD panel lighting test device of this invention has significant beneficial effects, can meet the diverse needs in the LCD display production process, improve testing efficiency and accuracy, reduce production costs, and enhance product quality and enterprise competitiveness.

[0105] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A portable LCD panel illumination testing device, characterized in that, include: A clamp (1) is used to connect to an LCD screen; A chute (2) is provided on the clamp (1) to accommodate the buffer device (3); The buffer device (3) includes a slider (4) and a pressure head (5). The slider (4) is set in the slide groove (2) and can move along the slide groove (2). The pressure head is set at one end of the buffer device near the slide groove (2). The pressure head (5) is connected to the slider (4). A circuit board (6) is disposed at the end of the clamp (1) away from the buffer device and contains a detection circuit. A connector (7) is fixed on a circuit board (6) for connecting a flexible circuit board (8); A flexible circuit board (8) is connected to a connector (7) at one end and to a liquid crystal display screen at the other end; A clamping screw (9) is set on both sides of the buffer device (3), and a spring (10) is fitted on it to fix the position of the buffer device (3) in the slide (2); The number and position of the buffer device (3) can be adjusted according to the size and model of the LCD screen to meet the testing requirements of different models of LCD screens.

2. The movable LCD panel lamp-lighting test device according to claim 1, characterized in that, The slide (2) adopts an inverted T-shaped structure and is set at the top of the fixture (1). The slider (4) and the buffer device (3) also form an inverted T-shaped structure, which fits into the shape of the slide (2).

3. The movable LCD panel lamp-lighting test device according to claim 1, characterized in that, The slider (4) of the buffer device (3) is set in the groove (2), and the pressure head (5) is connected to the slider (4) through the spring (10). The pressure head (5) is located at the front end of the buffer device (3) and can move within a certain range.

4. The movable LCD panel lamp-lighting test device according to claim 1, characterized in that, The clamping screw (9) adopts a double-layer self-locking screw or spring flat washer combination screw structure.

5. The movable LCD panel lamp-lighting test device according to claim 1, characterized in that, The connector (7) is located at the edge of the circuit board (6).

6. The movable LCD panel lamp-lighting test device according to claim 1, characterized in that, It also includes: a bull's horn (11); located at the front end of the circuit board (6); According to the design of the detection screen, one end of the horn (11) is soldered to the circuit board (6), and the other end of the interface has several plugs to connect with the liquid crystal display screen.

7. The movable LCD panel lamp-lighting test device according to claim 1, characterized in that, The number of buffer devices (3) can be increased or decreased as needed. They can be disassembled and installed by adjusting the clamping screws (9). The buffer devices (3) are arranged along the length of the slide (2).

8. The movable LCD panel lamp-lighting test device according to claim 1, characterized in that, The length of the chute (2) is designed according to the movement range of the buffer device (3), and the chute (2) runs through the top of the fixture (1) for the entire length.

9. The movable LCD panel lamp-lighting test device according to claim 1, characterized in that, The spring (10) is made of 304 stainless steel and is located inside the buffer device (3) to provide a stable clamping force. One end of the spring (10) is fixed on the slider (4) and the other end is fixed on the pressure head (5).

10. The movable LCD panel lamp-lighting test device according to claim 1, characterized in that, The bottom of the clamp (1) is provided with an adjustment screw to accommodate LCD screens of different thicknesses.

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