A MiniLED display performance testing device

Abstract

This utility model discloses a MiniLED display performance testing device, including a device chassis and a performance testing chamber mounted on top of the chassis. A visual integration top mount is mounted on the top of the performance testing chamber, and multiple visual testing cameras are equidistantly arranged on the inner wall of the bottom end of the visual integration top mount. A connected cleaning and dust-free device is added to the top and bottom of the visual integration top mount. This device uses a collection pipe located at the rear of the performance testing chamber to powerfully blow air through multiple nozzles. This blowing action promptly removes dust remaining inside the performance testing chamber, on the outer wall of the display test platform, and on the outer wall of the visual testing cameras. This is crucial for MiniLED display performance testing because dust can affect the accuracy and reliability of the test. Maintaining a clean testing environment ensures the accuracy of the test results and provides reliable data support for the quality evaluation of the display.

Description

Technical Field

[0001] This utility model belongs to the technical field of display device testing, specifically relating to a MiniLED display performance testing device. Background Technology

[0002] In today's era of rapid technological development, MiniLED displays, as a display technology with excellent performance such as high brightness, high contrast, and high color saturation, have been widely used in the field of electronic devices. In order to ensure that the quality and performance of MiniLED displays meet the standards, they need to be subjected to rigorous visual testing and inspection. During the visual testing and inspection of MiniLED displays, multiple visual testing and inspection cameras are usually used to collect and analyze images of the MiniLED displays placed on the display platform from multiple angles. By processing the collected images, multiple performance indicators such as brightness, contrast, color accuracy, and pixel defects of the display can be detected.

[0003] However, in actual testing, it is difficult to achieve a completely dust-free testing environment. A small amount of dust often accumulates in the testing area, on the outer wall of the MiniLED display, or on the visual testing camera. This dust can severely impact the accuracy of testing and inspection. Dust in the testing area may scatter light, altering the lighting conditions of the testing environment and causing inaccurate brightness and color measurements in the images captured by the visual testing camera. Simultaneously, dust may also create interference in the images, affecting the analysis and judgment of the display's performance indicators. When dust adheres to the outer wall of the MiniLED display, it alters the surface optical properties of the display, affecting its reflectivity and transmittance. This will cause deviations in the visual testing camera's measurements of the display's brightness and color, thus affecting the accuracy of the test results. Furthermore, dust on the visual testing camera directly affects image clarity. Dust can obstruct the camera lens, making the captured images blurry and difficult to accurately detect performance indicators such as pixel defects in the display. In such cases, misjudgments are easily made, misjudging a qualified display as unqualified, or vice versa.

[0004] In conclusion, dust poses a significant threat to the accuracy of visual testing and inspection of MiniLED displays, and an effective solution is urgently needed to address this issue. Utility Model Content

[0005] The purpose of this invention is to provide a MiniLED display performance testing device to solve the problem mentioned in the background art that, due to the difficulty in achieving a completely dust-free testing environment, a small amount of dust often accumulates in the testing and inspection area, the outer wall of the MiniLED display, or the visual testing and inspection camera, which seriously affects the accuracy of testing and inspection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a MiniLED display performance testing device, comprising a device chassis and a performance testing chamber disposed on the top of the device chassis. A visual integration top seat is disposed on the top of the performance testing chamber. Multiple visual testing cameras are equidistantly disposed on the inner wall of the bottom end of the visual integration top seat. A display test placement platform is disposed on the upper side of the top of the device chassis, and the display test placement platform is located inside the lower side of the center of the performance testing chamber. The acquisition direction of the multiple visual testing cameras is all facing the display test placement platform. A cleaning and dust-free device is connected to the top and lower side of the visual integration top seat.

[0007] Preferably, the cleanroom device includes a controller, connecting wires, a hood-type air intake filter, and a fan box. The fan box is located at the rear side of the center of the outer wall of the top of the visual integrated top seat. An air inlet is located at the front end of the fan box. A hood-type air intake filter is also located at the front end of the fan box, and the hood-type air intake filter is completely protected outside the air inlet. A blower is located inside the fan box. The controller is located at the center of the outer wall of the front end of the visual integrated top seat. The controller and the blower are electrically connected via connecting wires.

[0008] Preferably, the clean and dust-free device further includes an air supply duct, screw fixing brackets, and an air collection pipe. An air outlet is provided at the center of the rear end of the fan box, and a pipe hole is provided inside the center of the rear end of the performance test chamber. The air supply duct is connected to the rear end of the air outlet. The air supply duct has an overall U-shaped structure. The bottom end of the air supply duct passes through the pipe hole from back to front. The bottom end of the air supply duct is connected to the air collection pipe. The air collection pipe is horizontal and located on the front side of the inner wall of the rear end of the performance test chamber. Screw fixing brackets are sleeved on the outside of both ends of the air collection pipe, and the screw fixing brackets are fixed to the inner wall of the rear end of the performance test chamber by screws.

[0009] Preferably, the cleaning and dust-free device further includes a front spray head, a downward-sloping spray head, and an upward-sloping spray head. Multiple front spray heads are equidistantly arranged at the front end of the air collection pipe, multiple upward-sloping spray heads are equidistantly arranged at the upper end of the air collection pipe, and multiple downward-sloping spray heads are equidistantly arranged at the lower end of the air collection pipe. The front spray head, the downward-sloping spray head, and the upward-sloping spray head are all connected to the inside of the air collection pipe.

[0010] Preferably, the downward-sloping nozzle is tilted towards the center of the display screen test platform, the upward-sloping nozzle is directed towards the multiple vision test cameras at the bottom of the vision integration top mount, and the front nozzle is directed towards the front.

[0011] Preferably, the performance test chamber has an overall U-shaped structure with the U-shaped opening facing forward. The performance test chamber is flush with the left and right ends and the rear outer wall of the device chassis. The front end of the performance test chamber is provided with a test chamber closing door, and the left end of the test chamber closing door is rotatably connected to the performance test chamber through multiple hinges.

[0012] Preferably, the device chassis is provided with mounting feet at the four corners of the bottom, and the bottom outer walls of the mounting feet are provided with anti-slip pads. A touch display is provided on the front side of the center of the right outer wall of the performance test chamber, and the touch display is electrically connected to multiple visual test and inspection cameras.

[0013] Preferably, a maintenance window is provided inside the front end of the device chassis, and a maintenance door is provided inside the maintenance window. The maintenance door is rotatably connected to the device chassis via a concealed hinge, and a lifting cylinder is provided at the center inside the device chassis.

[0014] Preferably, the lifting cylinder is provided with a cylinder plunger inside, and a cylinder lifting shaft is provided at the top of the cylinder plunger. A lifting hole is provided inside the center of the top of the device housing. The top of the cylinder lifting shaft passes through the lifting hole and is fixedly connected to the bottom of the display screen test platform. Lifting guide holes are provided on all four sides of the lifting hole. Lifting guide rods are provided near the four corners of the bottom of the display screen test platform. The bottom of the lifting guide rods is inserted into the lifting guide holes.

[0015] Compared with the prior art, the present invention provides a MiniLED display performance testing device, which has the following beneficial effects:

[0016] This invention incorporates a connected cleaning and dust-free device at the top and bottom of the visual integration top mount. This device utilizes an air collection pipe located at the rear of the performance testing chamber, through multiple blowers to powerfully remove dust from the interior of the chamber, the outer wall of the display test platform, and the outer wall of the visual testing camera. This is crucial for MiniLED display performance testing, as dust can affect the accuracy and reliability of the tests. Maintaining a clean testing environment ensures accurate test results and provides reliable data support for display quality assessment. The cleaning and dust-free device quickly removes dust from the testing environment, reducing the need for frequent cleaning and maintenance due to dust accumulation. This saves time, improves testing efficiency, and allows the testing equipment to proceed with subsequent tests more quickly, meeting the needs of large-scale production and testing. By continuously maintaining a clean testing environment, the cleaning and dust-free device helps reduce equipment malfunctions and instability caused by dust, thus lowering maintenance costs, improving overall stability and reliability, and ensuring long-term stable operation of the testing equipment. Attached Figure Description

[0017] Figure 1 This is a right-view stereoscopic structural diagram of a MiniLED display performance testing device according to the present invention.

[0018] Figure 2 This is a frontal planar structural diagram of a MiniLED display performance testing device according to the present invention.

[0019] Figure 3 This is a left-side stereoscopic structural diagram of a MiniLED display performance testing device according to the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the top of the cleaning and dust-free device of this utility model.

[0021] Figure 5 This is a frontal plan view of the clean and dust-free device of this utility model.

[0022] Figure 6 This is a schematic diagram of the overall three-dimensional structure of the cleaning and dust-free device of this utility model.

[0023] In the diagram: 1. Mounting feet; 2. Assembly chassis; 3. Maintenance door; 4. Touch screen display; 5. Performance test chamber; 6. Vision integrated top mount; 7. Cleaning and dust-free device; 8. Display screen test platform; 9. Test chamber closing door; 10. Vision test camera; 11. Lifting guide rod; 12. Cylinder lifting shaft; 13. Controller; 14. Connecting wires; 15. Hood-type air intake filter; 16. Fan box; 17. Air supply duct; 18. Screw fixing bracket; 19. Air collection pipe; 20. Front nozzle; 21. Lower oblique nozzle; 22. Upper oblique nozzle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figure 1-6The present invention discloses a MiniLED display performance testing device, comprising a device housing 2 and a performance testing chamber 5 disposed on the top of the device housing 2. A visual integrated top mount 6 is disposed on the top of the performance testing chamber 5. Four mounting feet 1 are disposed at the four corners of the bottom of the device housing 2, and anti-slip pads are disposed on the outer walls of the bottom ends of the mounting feet 1. The mounting feet 1 ensure the stability of the device during operation and prevent vibration or slippage from affecting the test results. A touch display 4 is disposed on the front side of the center of the right outer wall of the performance testing chamber 5. The touch display 4 is electrically connected to multiple visual testing cameras 10. Multiple visual testing cameras 10 are equidistantly disposed on the inner wall of the bottom end of the visual integrated top mount 6. A display test platform 8 is disposed on the upper side of the top of the device housing 2, and the display test platform 8 is located inside the lower side of the center of the performance testing chamber 5. The acquisition direction of the multiple visual testing cameras 10 is all facing the display test platform 8. The multiple visual testing cameras 10 acquire images of the MiniLED display on the platform from multiple angles to obtain the display... The visual test camera 10 transmits the image information collected by the display screen under different states to the touch screen 4 located at the center of the right outer wall of the performance test chamber 5. The touch screen 4 analyzes and processes these images and compares them with preset standard images to determine whether the performance of the display screen meets the requirements. For example, it can detect parameters such as brightness, contrast, color accuracy, and pixel defects of the display screen. The performance test chamber 5 has a U-shaped structure with the U-shaped opening facing forward. The U-shaped structure design can reduce the influence of external light and interference on the test to a certain extent and provide a relatively stable test environment. The performance test chamber 5 is flush with the left and right ends and the rear outer wall of the device chassis 2. The front end of the performance test chamber 5 is provided with a test chamber closing door 9, and the left end of the test chamber closing door 9 is rotatably connected to the performance test chamber 5 through multiple hinges. The hinges can easily open and close the test chamber closing door 9, making it easy to place and take out the display screen. After closing the test chamber closing door 9, the interference of external factors on the test can be further reduced.

[0026] like Figure 1 , Figure 2 and Figure 3As shown, a maintenance window is provided inside the front of the device housing 2, and a maintenance door 3 is provided inside the maintenance window. The maintenance door 3 is rotatably connected to the device housing 2 via a concealed hinge. When the device needs maintenance, the maintenance door 3 can be opened to facilitate maintenance personnel to inspect the components inside the device housing 2. The maintenance window improves the maintainability of the device and reduces maintenance costs and time without affecting the overall structure and performance of the device. A lifting cylinder is provided at the center of the device housing 2. A cylinder plunger is provided inside the lifting cylinder, and a cylinder lifting shaft 12 is provided at the top of the cylinder plunger. A lifting hole is provided at the center of the top of the device housing 2. The top of the cylinder lifting shaft 12 passes through the lifting hole and is fixedly connected to the bottom of the display test platform 8. The lifting hole is surrounded by... The display test platform 8 is equipped with lifting guide holes, and lifting guide rods 11 are installed at the bottom of the platform near the four corners. The bottom ends of the lifting guide rods 11 are inserted into the lifting guide holes. The lifting cylinder at the center of the device housing 2 controls the lifting shaft 12 of the cylinder through the movement of the cylinder plunger. When the height of the display needs to be adjusted, the cylinder plunger pushes the cylinder lifting shaft 12 to rise or fall, thereby driving the display test platform 8 to rise or fall. In order to ensure the stability of the display test platform 8 during the lifting process, lifting guide holes are set around the lifting hole. Lifting guide rods 11 are installed at the bottom of the platform near the four corners. The bottom ends of the lifting guide rods 11 are inserted into the lifting guide holes. In this way, when the platform is raised or lowered, the lifting guide rods 11 slide in the lifting guide holes, which plays a guiding and stabilizing role.

[0027] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, a cleaning and dust-free device 7 is connected to the top and bottom of the visual integration top base 6. The cleaning and dust-free device 7 includes a controller 13, a connecting wire 14, a hood-type air intake filter 15, and a fan box 16. The fan box 16 is located at the rear of the center of the outer wall of the top of the visual integration top base 6. An air inlet is located at the front of the fan box 16, and a hood-type air intake filter 15 is also located at the front of the fan box 16. The hood-type air intake filter 15 completely protects the outside of the air inlet, effectively blocking dust, impurities, and other pollutants in the air. When air passes through the filter, larger dust particles are intercepted, and only clean air can enter the fan box 16. A blower is installed inside the fan box 16. The controller 13 is located at the center of the outer wall of the front of the visual integration top base 6. The controller 13 is electrically connected to the blower via the connecting wire 14. The blower inside the fan box 16 operates under the control of the controller 13. The controller 13 can... The speed and air volume of the blower can be adjusted as needed. The cleanroom device 7 also includes an air supply pipe 17, a screw fixing bracket 18, and an air collection pipe 19. An air outlet is provided at the center of the rear end of the blower box 16. A pipe hole is provided inside the center of the rear end of the performance test chamber 5. The air supply pipe 17 is connected to the rear end of the air outlet. The air supply pipe 17 has an overall U-shaped structure. The bottom end of the air supply pipe 17 passes through the pipe hole from back to front. The U-shaped air supply pipe 17 design can achieve long-distance air delivery in a limited space, and it is also convenient to connect and arrange with other components. The bottom end of the air supply pipe 17 is connected to the air collection pipe 19. The air collection pipe 19 is horizontal and located on the front side of the inner wall of the rear end of the performance test chamber 5. Screw fixing brackets 18 are sleeved on the outside of both ends of the air collection pipe 19, and the screw fixing brackets 18 are fixed to the inner wall of the rear end of the performance test chamber 5 by screws. The air collection pipe 19 plays the role of air distribution. After the clean air from the air supply pipe 17 enters the air collection pipe 19, it is distributed to each nozzle.

[0028] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, the cleaning and dust-free device 7 also includes a front air nozzle 20, a downward-sloping air nozzle 21, and an upward-sloping air nozzle 22. Multiple front air nozzles 20 are equidistantly arranged at the front end of the air collection pipe 19, multiple upward-sloping air nozzles 22 are equidistantly arranged at the upper end of the air collection pipe 19, and multiple downward-sloping air nozzles 21 are equidistantly arranged at the lower end of the air collection pipe 19. The front air nozzles 20, downward-sloping air nozzles 21, and upward-sloping air nozzles 22 are all connected to the interior of the air collection pipe 19. The downward-sloping air nozzles 21 are tilted towards the center of the display screen test platform 8. The airflow from the downward-sloping air nozzles 21 can clean the display screen test platform 8, preventing dust accumulation on the platform and blowing away any dust that may remain on the display screen surface, ensuring the accuracy of the test. The upward-sloping air nozzles 22 are directed towards the multiple vision test cameras 10 at the bottom of the vision integration top mount 6. The airflow from the upward-sloping air nozzles 22 can directly... The air jets applied to the visual test camera 10 blow away any dust that may be adhering to the camera surface, ensuring the camera lens remains clear and does not affect the quality of image acquisition. The front nozzles 20 blow air forward, cleaning the front space inside the performance test chamber 5 and preventing dust accumulation in the front area. Through the coordinated operation of the various parts of the cleaning and dust-free device 7, a comprehensive cleaning of the interior of the MiniLED display performance test device is achieved. From air filtration and delivery to air jet cleaning, the entire process forms a closed-loop system, continuously providing clean air to the performance test chamber 5 and promptly removing internal dust. This maintains a clean and dust-free testing environment, improves the accuracy and reliability of test results, and also extends the service life of key components such as the visual test camera 10 and the display test platform 8.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A MiniLED display performance testing device, comprising a device chassis (2) and a performance testing chamber (5) disposed on the top of the device chassis (2), wherein a visual integration top seat (6) is disposed on the top of the performance testing chamber (5), and a plurality of visual testing cameras (10) are equidistantly disposed on the inner wall of the bottom end of the visual integration top seat (6), and a display test placement platform (8) is disposed on the upper side of the top of the device chassis (2), and the display test placement platform (8) is located inside the lower side of the center of the performance testing chamber (5), wherein the acquisition direction of the plurality of visual testing cameras (10) is all facing the display test placement platform (8), characterized in that: The top and bottom of the visual integration top mount (6) are connected to a cleaning and dust-free device (7); The cleanroom device (7) includes a controller (13), a connecting wire (14), a hood-type air intake filter (15), and a fan box (16). The fan box (16) is located on the rear side of the center of the outer wall of the top of the visual integrated top base (6). The front end of the fan box (16) is provided with an air inlet. The front end of the fan box (16) is also provided with a hood-type air intake filter (15), and the hood-type air intake filter (15) is completely protected outside the air inlet. A blower is provided inside the fan box (16). The controller (13) is located at the center of the outer wall of the front end of the visual integrated top base (6). The controller (13) is electrically connected to the blower through the connecting wire (14).

2. The Mini LED display screen performance testing device according to claim 1, characterized in that: The clean and dust-free device (7) also includes an air supply pipe (17), a screw fixing bracket (18), and an air collection pipe (19). An air outlet is provided at the center of the rear end of the fan box (16). A pipe hole is provided inside the center of the rear end of the performance test box (5). The air supply pipe (17) is connected to the rear end of the air outlet. The air supply pipe (17) has an overall U-shaped structure. The bottom end of the air supply pipe (17) passes through the pipe hole from back to front. The bottom end of the air supply pipe (17) is connected to the air collection pipe (19). The air collection pipe (19) is horizontal and located on the front side of the inner wall of the rear end of the performance test box (5). Screw fixing brackets (18) are sleeved on the outside of both ends of the air collection pipe (19), and the screw fixing brackets (18) are fixed to the inner wall of the rear end of the performance test box (5) by screws.

3. The Mini LED display screen performance testing device according to claim 2, characterized in that: The cleaning and dust-free device (7) also includes a front spray head (20), a downward-sloping spray head (21), and an upward-sloping spray head (22). Multiple front spray heads (20) are equidistantly arranged at the front end of the air collection pipe (19), multiple upward-sloping spray heads (22) are equidistantly arranged at the upper end of the air collection pipe (19), and multiple downward-sloping spray heads (21) are equidistantly arranged at the lower end of the air collection pipe (19). The front spray head (20), the downward-sloping spray head (21), and the upward-sloping spray head (22) are all connected to the inside of the air collection pipe (19).

4. The MiniLED display performance testing device according to claim 3, characterized in that: The downward-sloping nozzle (21) is tilted towards the center of the display test platform (8), the upward-sloping nozzle (22) is directed towards the multiple vision test cameras (10) at the bottom of the vision integration top seat (6), and the front nozzle (20) is directed towards the front.

5. The Mini LED display screen performance testing device according to claim 1, characterized in that: The performance test box (5) has a U-shaped structure. The U-shaped opening of the performance test box (5) faces forward. The performance test box (5) is flush with the left and right ends and the rear outer wall of the device housing (2). The front end of the performance test box (5) is provided with a test box closing door (9), and the left end of the test box closing door (9) is rotatably connected to the performance test box (5) through multiple hinges.

6. The Mini LED display screen performance testing device according to claim 1, characterized in that: The device chassis (2) is provided with mounting feet (1) at the four corners of the bottom. The bottom outer walls of the mounting feet (1) are provided with anti-slip pads. The performance test box (5) is provided with a touch display (4) at the front of the center of the right outer wall. The touch display (4) is electrically connected to multiple visual test cameras (10).

7. The Mini LED display screen performance testing device according to claim 6, characterized in that: The device housing (2) has a maintenance window inside its front end, and a maintenance door (3) is provided inside the maintenance window. The maintenance door (3) is rotatably connected to the device housing (2) by a concealed hinge. A lifting cylinder is provided at the center of the device housing (2).

8. The Mini LED display screen performance testing device according to claim 7, characterized in that: The lifting cylinder is equipped with a cylinder plunger inside, and a cylinder lifting shaft (12) is provided at the top of the cylinder plunger. A lifting hole is provided inside the center of the top of the device housing (2). The top of the cylinder lifting shaft (12) passes through the lifting hole and is fixedly connected to the bottom of the display test platform (8). Lifting guide holes are provided on all four sides of the lifting hole. Lifting guide rods (11) are provided near the four corners of the bottom of the display test platform (8). The bottom of the lifting guide rods (11) is inserted into the lifting guide holes.

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