Backlight detection jig

Abstract

The utility model relates to the field of backlight detection, especially backlight detection fixture, including detection base, connecting block, vision camera, placing plate, limit block and energizer etc. are connected with connecting block in detection base front and rear two department upside, vision camera is connected with detection base left rear part, placing plate is connected with detection base left part upside, limit block is connected with placing plate left part upside, and energizer is connected with detection base left upper part. The utility model discloses through the cooperation of first motor, first screw rod and first sliding block, makes the flatness measurer mobile detection, then through the cooperation of energizer, electric push rod, light shield, vision camera and temperature sensor to the flatness, power on, temperature and defect detection of backlight, thereby can carry out the flatness, power on, temperature and defect detection of backlight, realize the light shielding at the same time, prevent the light source from injuring personnel's eyes, be convenient for comprehensively understanding the performance of backlight, improve the detection reliability and security.

Description

Technical Field

[0001] This utility model relates to the field of backlight detection, and in particular to a backlight detection fixture. Background Technology

[0002] In fields such as LCD displays, automotive displays, and smart terminals, the backlight is the core light-emitting component of the display panel. Its performance directly determines the brightness uniformity, color reproduction, and lifespan of the displayed image. During the production process of the backlight, quality defects need to be detected through multi-dimensional testing. Backlight testing is a key link in ensuring the quality of display devices.

[0003] Current backlight testing methods typically involve mounting the backlight on testing equipment and using components on the equipment to power on and illuminate the backlight for testing. However, current equipment has limited functionality, only capable of collecting a single type of data, making it difficult to comprehensively understand the backlight's performance and affecting testing reliability. Furthermore, the backlight remains lit during testing, and the light exposure can easily cause eye fatigue or even injury to personnel, compromising testing safety.

[0004] Therefore, it is necessary to design a backlight inspection fixture that can detect the flatness, power supply, temperature and defects of the backlight while also shielding it from light to prevent the light source from hurting the eyes of personnel, so as to facilitate a comprehensive understanding of the backlight performance and improve the reliability and safety of the inspection. Utility Model Content

[0005] To overcome the shortcomings of current equipment, which has limited functionality, can only collect single types of data, making it difficult to fully understand the performance of the backlight and affecting the reliability of the test, and whose backlight is on during the test, causing eye fatigue or even damage to personnel and affecting the safety of the test, this utility model provides a backlight testing fixture that can simultaneously perform flatness, power supply, temperature and defect detection on the backlight, prevent the light source from hurting the personnel's eyes, facilitate a comprehensive understanding of the backlight performance, and improve the reliability and safety of the test.

[0006] The technical solution of this utility model is: a backlight detection fixture, comprising a detection base, connecting blocks, a vision camera, a placement plate, a limiting block, a power supply, a second motor, a second lead screw, a second slider, a flatness detection component, a clamping component, a temperature detection component, and a light-shielding component. Connecting blocks are connected to the upper sides of both the front and rear parts of the detection base. A vision camera is connected to the rear left part of the detection base. A placement plate is connected to the upper left side of the detection base, and a limiting block is connected to the upper left side of the placement plate. A power supply is connected to the upper left side of the detection base. A second motor is connected to the right side of the detection base. The second motor and the processor are controlled by... The control module is electrically connected. A second lead screw is connected to the output shaft of the second motor. The second lead screw is rotatably connected to the detection base. A second slider is connected to the lower side of the placement plate. The second slider is slidably connected to the detection base. The second slider and the second lead screw are connected by threads. The connecting block is equipped with a flatness detection component for detecting the flatness of the backlight. The placement plate is equipped with a clamping component for clamping the backlight. The rear of the placement plate is equipped with a temperature detection component for detecting the temperature of the backlight during detection. The upper part of the detection base is equipped with a light-shielding component for shading during detection.

[0007] In one embodiment, the flatness detection component includes a first motor, a first lead screw, a guide rod, a first slider, and a flatness measuring device. The first motor is connected to the front side of the upper part of the rear connecting block. The first motor and the processor are electrically connected through a control module. The first lead screw is connected to the output shaft of the first motor. The first lead screw is rotatably connected to the front connecting block. A guide rod is connected between the connecting blocks. The first slider is slidably connected to the guide rod. The first slider and the first lead screw are connected by a thread. The flatness measuring device is connected to the right side of the first slider.

[0008] In one embodiment, the clamping assembly includes a pull rod, a clamping plate, a spring, and a limiting plate. The limiting plate is connected to the upper front side of the placement plate, and the pull rod is slidably connected to the limiting plate. The clamping plates are connected to the rear side of the pull rod and the upper rear side of the placement plate. Two springs are connected between the pull rod and the limiting plate.

[0009] In one embodiment, the clamps are all U-shaped.

[0010] In one embodiment, the temperature detection assembly includes a third motor, a connecting rod, and a temperature sensor. The third motor is connected to the rear of the placement plate, and the third motor and the processor are electrically connected through a control module. The connecting rod is connected to the output shaft of the third motor, and the temperature sensor is connected to the front of the connecting rod.

[0011] In one embodiment, the light-shielding assembly includes an electric push rod and a light-shielding cover. The electric push rod is connected to the upper part of the detection base. The electric push rod and the processor are electrically connected through a control module. The light-shielding cover is connected to the telescopic end of the electric push rod.

[0012] The beneficial effects are: 1. This utility model uses a first motor, a first lead screw, and a first slider to move and detect the flatness measuring device. Then, it uses a power supply, an electric push rod, a light shield, a vision camera, and a temperature sensor to detect the flatness, power supply, temperature, and defects of the backlight. This allows for the simultaneous detection of the flatness, power supply, temperature, and defects of the backlight while providing light shielding to prevent the light source from hurting people's eyes. It also facilitates a comprehensive understanding of the backlight's performance and improves the reliability and safety of the detection.

[0013] 2. This utility model picks up the backlight and places it on the placement plate, then clamps it with a clamping plate. Next, a second motor drives a second lead screw to rotate, and the second slider moves under the action of the thread, which in turn moves the placement plate and the clamping plate, allowing the backlight to move and be transported. This enables the backlight to be clamped and automatically transported for testing, preventing the backlight from shifting or falling off, and improving the efficiency of testing and the stability of transport. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the first slider and vision camera components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the tie rod and clamping plate components of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the spring and limiting plate components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the temperature sensor and connecting rod components of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the placement plate and the second slider of this utility model.

[0020] The components in the diagram are labeled as follows: 1-Detection base, 2-Connecting block, 3-First motor, 4-First lead screw, 5-Guide rod, 6-First slider, 7-Flatness measuring device, 8-Vision camera, 9-Placement plate, 10-Limiting block, 11-Power supply, 12-Pull rod, 13-Clamping plate, 14-Spring, 15-Limiting plate, 16-Second motor, 17-Second lead screw, 18-Third motor, 19-Connecting rod, 20-Temperature sensor, 21-Second slider, 22-Electric push rod, 23-Light shield. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0022] A backlight detection fixture, such as Figures 1-6 As shown, the system includes a detection base 1, connecting blocks 2, a vision camera 8, a placement plate 9, a limiting block 10, a power supply 11, a second motor 16, a second lead screw 17, a second slider 21, a flatness detection component, a clamping component, a temperature detection component, and a light-shielding component. Connecting blocks 2 are connected to the upper sides of both the front and rear of the detection base 1. The vision camera 8 is connected to the rear left side of the detection base 1. The placement plate 9 is connected to the upper left side of the detection base 1, and the limiting block 10 is connected to the upper left side of the placement plate 9. The power supply 11 is connected to the upper left side of the detection base 1. The second motor 16 is connected to the right side of the detection base 1. The second motor 16 and the processor are electrically connected via a control module. The second motor 16 is connected to a second lead screw 17, which is rotatably connected to the detection base 1. A second slider 21 is connected to the lower side of the placement plate 9, which is slidably connected to the detection base 1. The second slider 21 is connected to the second lead screw 17 by a thread. The connecting block 2 is provided with a flatness detection component for detecting the flatness of the backlight. The placement plate 9 is provided with a clamping component for clamping the backlight. The rear of the placement plate 9 is provided with a temperature detection component for detecting the temperature of the backlight during detection. The upper part of the detection base 1 is provided with a light-shielding component for shading during detection.

[0023] like Figure 2 As shown, the flatness detection component includes a first motor 3, a first lead screw 4, a guide rod 5, a first slider 6, and a flatness measuring device 7. The first motor 3 is connected to the front of the upper part of the rear connecting block 2. The first motor 3 and the processor are electrically connected through a control module. The first lead screw 4 is connected to the output shaft of the first motor 3. The first lead screw 4 is rotatably connected to the front connecting block 2. The guide rod 5 is connected between the connecting blocks 2. The first slider 6 is slidably connected to the guide rod 5. The first slider 6 is connected to the first lead screw 4 through a thread. The flatness measuring device 7 is connected to the right side of the first slider 6.

[0024] like Figure 3 and Figure 4 As shown, the clamping assembly includes a pull rod 12, a clamping plate 13, a spring 14, and a limiting plate 15. The limiting plate 15 is connected to the upper front side of the placement plate 9. The pull rod 12 is slidably connected to the limiting plate 15. The clamping plate 13 is connected to both the rear side of the pull rod 12 and the upper rear side of the placement plate 9. The clamping plates 13 are all U-shaped to facilitate clamping. Two springs 14 are connected between the pull rod 12 and the limiting plate 15.

[0025] like Figure 5As shown, the temperature detection component includes a third motor 18, a connecting rod 19, and a temperature sensor 20. The third motor 18 is connected to the rear of the placement plate 9. The third motor 18 and the processor are electrically connected through a control module. The connecting rod 19 is connected to the output shaft of the third motor 18, and the temperature sensor 20 is connected to the front of the connecting rod 19.

[0026] like Figure 1 As shown, the light-shielding assembly includes an electric push rod 22 and a light-shielding cover 23. The electric push rod 22 is connected to the upper part of the detection base 1. The electric push rod 22 and the processor are electrically connected through a control module. The light-shielding cover 23 is connected to the telescopic end of the electric push rod 22.

[0027] When backlight testing is required, this device can be used. The testing base 1 contacts the table surface, and then the pull rod 12 is pulled along the limiting plate 15. The spring 14 is compressed, causing the front clamping plate 13 to move. The backlight is then picked up and placed on the placement plate 9, making contact with the rear clamping plate 13. The limiting block 10 limits the backlight. The pull rod 12 is then released, the spring 14 returns, and the pull rod 12 moves back to its original position, causing the front clamping plate 13 to move back to its original position and clamp the backlight. All clamping plates 13 are U-shaped. Then, the processor starts the second motor via the control module. 16. The second motor 16 drives the second lead screw 17 to rotate, causing the second slider 21 to move under the action of the thread. This moves the placement plate 9 and the clamping plate 13, allowing the backlight to move for conveying. This enables the backlight to be clamped and automatically conveyed for testing, preventing the backlight from shifting or falling off, and improving the efficiency of testing and the stability of conveying. When the backlight passes the flatness measuring device 7, the first motor 3 is started. The first motor 3 drives the first lead screw 4 to rotate, causing the first slider 6 to move along the guide rod 5 under the action of the thread. This moves the flatness measuring device 7, and then the first motor 3 reverses direction. The operation causes the first lead screw 4 to rotate in the reverse direction, which in turn causes the first slider 6 to move in the reverse direction under the action of the thread. This, in turn, causes the flatness measuring device 7 to move in the reverse direction. The flatness measuring device 7 then reciprocates to detect the flatness of the backlight. After the detection, the first motor 3 is turned off, and the backlight is then transported to the area below the vision camera 8 so that it is inserted into the power supply 11. The second motor 16 is then turned off, and the electric push rod 22 is activated. The electric push rod 22 drives the light shield 23 to move and cover the placement plate 9. Then, the power supply 11 is activated to power on the backlight and illuminate it for detection. The backlight is then passed through the light shield 23. The backlight is shielded from light, and the power supply status of the backlight is observed and defects are detected through the vision camera 8. During the detection process, the third motor 18 is activated, which drives the connecting rod 19 to rotate, causing the temperature sensor 20 to rotate. The temperature sensor 20 then detects the temperature at different positions of the backlight, and the detected data is transmitted to the terminal. After the detection, the third motor 18 is turned off. This allows for the simultaneous detection of the backlight's flatness, power supply, temperature, and defects, while also shielding it from light to prevent the light source from hurting the personnel's eyes. This facilitates a comprehensive understanding of the backlight's performance and improves the reliability and safety of the detection process. After the test is completed, turn off the power supply 11, and then reverse the operation of the electric push rod 22 to move the light shield 23 back to its original position. Then pull the pull rod 12 to move, the spring 14 is compressed, and the front clamp 13 moves. Then remove the backlight to separate it from the power supply 11. Then release the pull rod 12, the spring 14 rebounds, the pull rod 12 moves back to its original position, and the front clamp 13 moves back to its original position. Then the second motor 16 rotates in the opposite direction, driving the second lead screw 17 to rotate in the opposite direction. Under the action of the thread, the second slider 21 moves in the opposite direction, driving the placement plate 9 and the clamp 13 to move in the opposite direction and reset. Then repeat the above operation to clamp, transport, test and shield the backlight until the test is completed.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A backlight detection fixture, characterized by: The system includes a detection base (1), connecting blocks (2), a vision camera (8), a placement plate (9), a limiting block (10), a power supply (11), a second motor (16), a second lead screw (17), a second slider (21), a flatness detection component, a clamping component, a temperature detection component, and a light-shielding component. Connecting blocks (2) are connected to the upper sides of both the front and rear of the detection base (1). The vision camera (8) is connected to the rear left side of the detection base (1). The placement plate (9) is connected to the upper left side of the detection base (1). The limiting block (10) is connected to the upper left side of the placement plate (9). The power supply (11) is connected to the upper left side of the detection base (1). The second motor (16) is connected to the right side of the detection base (1). The second motor (16) and the processor communicate with each other. The second motor (16) is electrically connected to the output shaft of the second motor (16) via the control module. The second lead screw (17) is rotatably connected to the detection base (1). The second slider (21) is connected to the lower side of the placement plate (9). The second slider (21) is slidably connected to the detection base (1). The second slider (21) is connected to the second lead screw (17) via a thread. The connecting block (2) is provided with a flatness detection component for detecting the flatness of the backlight. The placement plate (9) is provided with a clamping component for clamping the backlight. The rear of the placement plate (9) is provided with a temperature detection component for detecting the temperature of the backlight during detection. The upper part of the detection base (1) is provided with a light-shielding component for shading during detection.

2. The backlight detection fixture of claim 1, wherein: The flatness detection component includes a first motor (3), a first lead screw (4), a guide rod (5), a first slider (6), and a flatness measuring device (7). The first motor (3) is connected to the front of the upper part of the rear connecting block (2). The first motor (3) and the processor are electrically connected through a control module. The first lead screw (4) is connected to the output shaft of the first motor (3). The first lead screw (4) is rotatably connected to the front connecting block (2). The guide rod (5) is connected between the connecting blocks (2). The first slider (6) is slidably connected to the guide rod (5). The first slider (6) is connected to the first lead screw (4) through a thread. The flatness measuring device (7) is connected to the right side of the first slider (6).

3. The backlight detection fixture of claim 1, wherein: The clamping assembly includes a pull rod (12), a clamping plate (13), a spring (14), and a limiting plate (15). The limiting plate (15) is connected to the upper front side of the placement plate (9). The pull rod (12) is slidably connected to the limiting plate (15). The clamping plate (13) is connected to both the rear side of the pull rod (12) and the upper rear side of the placement plate (9). Two springs (14) are connected between the pull rod (12) and the limiting plate (15).

4. The backlight detection fixture of claim 3, wherein: All the clamps (13) are U-shaped.

5. The backlight detection fixture of claim 1, wherein: The temperature detection component includes a third motor (18), a connecting rod (19) and a temperature sensor (20). The third motor (18) is connected to the rear of the placement plate (9). The third motor (18) and the processor are electrically connected through the control module. The connecting rod (19) is connected to the output shaft of the third motor (18), and the temperature sensor (20) is connected to the front of the connecting rod (19).

6. The backlight detection fixture of claim 1, wherein: The light shielding assembly comprises an electric push rod (22) and a light shielding cover (23), the electric push rod (22) is connected to the upper portion of the detection base (1), the electric push rod (22) and the processor are electrically connected through a control module, and the telescopic end of the electric push rod (22) is connected with the light shielding cover (23).

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