Liquid crystal display screen electric measuring frame
By designing an LCD screen electrical testing frame that supports components and cameras, the problem of cumbersome LCD screen testing was solved, enabling simultaneous testing on both sides and improving operational convenience and equipment applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN LONGYU TECH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-21
AI Technical Summary
The LCD screen needs to be flipped during the testing process to test both sides, which is cumbersome and inconvenient, especially for large screens.
An electrical testing frame for an LCD screen was designed, comprising a support assembly and a camera. The support assembly consists of support rods and a support plate. The support plate is provided with a bending part, a spherical bulb, and a protrusion. The camera is used to monitor the status of the display screen in real time. The number and position of the support rods can be adjusted by means of a sleeve and bolts to achieve simultaneous testing on both sides.
This technology enables simultaneous detection of both the front and back sides of the LCD screen without flipping it, improving detection efficiency, reducing the risk of screen damage, and enhancing ease of operation and equipment versatility.
Smart Images

Figure CN224536023U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical testing frame technology, and in particular to an electrical testing frame for a liquid crystal display screen. Background Technology
[0002] An LCD screen is an electronic display device that uses liquid crystal material as the display medium. It mainly consists of a backlight module, polarizer, glass substrate, liquid crystal layer, color filter, and driving circuit. The driving circuit controls the arrangement of liquid crystal molecules, changing the transmission or obstruction of light. Combined with the color filter, it achieves the mixing of red, green, and blue primary colors, thereby displaying images and text on the screen. After production, the LCD screen needs to be tested. During testing, the LCD screen is placed on an electrical testing rack equipped with a power connection port and a control display screen. The LCD screen is electrically connected to the power connection port via wires, and controlled via the control display screen to perform the test. If the LCD screen lights up, it indicates that the LCD screen is generally without problems. If the LCD screen does not light up, it indicates a quality problem. After the LCD screen is found to be without problems, it is flipped over to check for problems on the back. After testing, the power cord of the LCD screen is unplugged, and the LCD screen can be moved away.
[0003] During the testing of an LCD screen on an electrical testing stand, the power supply must first be connected to check whether the LCD screen can light up normally. Then, the LCD screen is flipped over for testing on the back. Since some LCD screens are large and not easy to flip, the operation is cumbersome. There is a need for further optimization in terms of the convenience of testing LCD screens. Therefore, this application provides an LCD screen electrical testing stand to meet the needs. Summary of the Invention
[0004] This utility model provides an electrical testing fixture for LCD screens to solve the problem of cumbersome testing of LCD screens.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A liquid crystal display electrical testing fixture includes a body and further includes:
[0007] The support assembly includes a plurality of support rods disposed on the body, the plurality of support rods being evenly distributed at intervals on the body, and a support plate being fixed to the top of each plurality of support rods;
[0008] Several cameras, all of which are electrically connected to the body.
[0009] Preferably, a circular sleeve is fixed to the top of the machine body, and a support rod is movably inserted into the inside of the circular sleeve. A bolt is threaded onto the surface of the circular sleeve, and the bolt abuts against the surface of the support rod.
[0010] Preferably, the support plate has a bent portion at its edge, and the bent portion is inclined downward.
[0011] Preferably, the surface of the bent portion is provided with an arc-shaped surface.
[0012] Preferably, a balloon is fixed to the top of the support plate, and the surface of the balloon is provided with anti-slip stripes.
[0013] Preferably, the bottom of the inner wall of the balloon is provided with a protrusion.
[0014] Compared with the prior art, this utility model has at least the following beneficial effects:
[0015] In the above solution, by setting up a camera and a support plate, when testing the LCD screen, the light-emitting surface of the LCD screen is placed on the support plate, the power cord of the LCD screen is inserted into the power connector of the machine, and the power is turned on by operating the display screen. Then, the back of the control display screen can be tested. At the same time, the camera transmits the real-time status of the light-emitting surface of the control display screen to the control display screen, realizing simultaneous double-sided testing. During the testing process, the LCD screen can be tested on both sides without flipping it over, making the operation more labor-saving and convenient.
[0016] By incorporating a bend and an arc-shaped surface, the downward-bending bend prevents the LCD screen from hitting the edge of the support plate, thus protecting the LCD screen. When the LCD screen comes into contact with the bend, the arc-shaped surface reduces the sharp edges of the bend, further preventing damage to the LCD screen and providing additional protection.
[0017] By incorporating a balloon, the LCD screen can cushion the screen when placed on the support plate, preventing hard contact between the screen and the support plate and further protecting the screen. When the screen is heavy, the balloon will be compressed flatter. Supported by the support plate, the flattened balloon increases the contact area with the screen, reducing pressure at the contact point and further protecting the screen.
[0018] By incorporating protrusions, the protrusions support the balloon when the LCD screen is pressed to its limit. The flexible protrusions further prevent the LCD screen from contacting the support plate, thereby enhancing the protection of the LCD screen and preventing damage.
[0019] By using round sleeves and bolts, support rods and support plates can be installed. The number of support rods can be adjusted according to the size of the LCD screen, avoiding the problem of excess support rods affecting the movement of the LCD screen and making the operation more convenient. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a structural schematic diagram of the support component of this utility model;
[0022] Figure 3 This is a cross-sectional view of the circular sleeve of this utility model.
[0023] In the diagram: 1. Body; 2. Camera; 3. Support assembly; 4. Circular sleeve; 5. Support rod; 6. Support plate; 7. Bending part; 8. Balloon; 9. Protrusion; 10. Bolt; 11. Arc surface.
[0024] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation
[0025] The present invention provides a liquid crystal display electrical testing frame with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some known technologies, those skilled in the art can also use other alternative methods to implement the invention. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.
[0026] like Figures 1-3 As shown, an embodiment of this utility model provides an LCD screen electrical testing frame, including a body 1. The body 1 is provided with a power connection port and a control display screen. The LCD screen is connected to the power connection port via a wire. The control display screen can control the power on and off, etc., and also includes:
[0027] Support component 3 includes a plurality of support rods 5 disposed on the body 1. The plurality of support rods 5 are evenly distributed on the body 1 at intervals, and a support plate 6 is fixed to the top of each of the plurality of support rods 5.
[0028] Several cameras 2 are electrically connected to the body 1. The support rods 5 and support plates 6 in the support assembly 3 are used to support the LCD screen. The evenly distributed support rods 5 ensure that the screen is placed with balanced force, avoiding damage caused by excessive local force. The support plate 6 provides a stable support plane for the screen. The cameras 2 are electrically connected to the body 1 and can capture images of the light-emitting surface of the LCD screen in real time during detection and transmit them to the control screen, realizing simultaneous detection of both sides of the screen. There is no need to manually flip the screen, which improves detection efficiency and reduces the screen damage that may be caused by frequent flipping.
[0029] like Figures 1-3 As shown in this embodiment, a circular sleeve 4 is fixed to the top of the body 1, and a support rod 5 is movably inserted into the inside of the circular sleeve 4. A bolt 10 is threaded onto the surface of the circular sleeve 4, and the bolt 10 abuts against the surface of the support rod 5. By inserting the support rod 5 into the circular sleeve 4 and tightening the bolt 10 to secure the support rod 5, the support rod 5 can be stably installed. At the same time, the number and position of the support rods 5 can be flexibly adjusted according to different sizes of LCD screens to avoid excess support rods 5 from hindering the handling and placement of the screen, making the electrical testing frame adaptable to various specifications of screens, and improving the equipment's versatility and ease of operation.
[0030] like Figures 1-3 As shown in this embodiment, a bending part 7 is provided at the edge of the support plate 6. The bending part 7 is inclined downward. The downward bending part 7 design can prevent the corners of the LCD screen from directly colliding with the sharp edge of the support plate 6 during the placement and transportation of the LCD screen, and prevent the screen from being damaged or cracked due to impact. By changing the contact angle and position between the screen and the edge of the support plate 6, the edge area of the screen is effectively protected, and the safety of the screen during the testing process is improved.
[0031] like Figures 1-3 As shown in this embodiment, the surface of the bent portion 7 is provided with an arc-shaped surface 11. The arc-shaped surface 11 further optimizes the protective performance of the bent portion 7. When the liquid crystal display screen comes into contact with the bent portion 7, the arc-shaped surface 11 can eliminate the sharp edges of the bent portion 7, so that the screen contacts with a smooth surface, reducing the concentration of contact stress and avoiding scratches or damage to the screen surface caused by edge scraping or squeezing. This provides more detailed protection for the screen and reduces the risk of screen damage during the testing process.
[0032] like Figures 1-3As shown in this embodiment, a balloon 8 is fixed to the top of the support plate 6. The surface of the balloon 8 is provided with anti-slip stripes. The balloon 8 is elastic. When the liquid crystal display screen is placed on the support plate 6, the balloon 8 can deform to buffer the display screen, avoid hard contact between the display screen and the support plate 6, and prevent damage to the display screen due to collision and impact. The anti-slip stripes on the surface of the balloon 8 increase the friction between it and the display screen, prevent the display screen from sliding and shifting during the testing process, ensure the stable placement of the display screen, and at the same time assist in supporting the display screen, thereby improving the stability and safety of the testing process.
[0033] like Figures 1-3 As shown in this embodiment, a protrusion 9 is provided at the bottom of the inner wall of the balloon 8. The protrusion 9 plays a role when the weight of the liquid crystal display screen is large and the balloon 8 is compressed to its limit. The flexible protrusion 9 can provide internal support for the balloon 8, preventing the balloon 8 from being over-compressed and causing the display screen to directly contact the support plate 6, thereby further enhancing the protection capability of the display screen. Even under heavy pressure on the display screen, the protrusion 9 can absorb the impact force through its own deformation, preventing the display screen from being damaged due to rigid contact and ensuring the integrity of the display screen during the testing process.
[0034] Working principle: Before testing the LCD screen, according to the size of the screen, install an appropriate number of support rods 5 on the machine body 1 using the round sleeve 4 and bolts 10. Insert the support rods 5 into the round sleeve 4, tighten the bolts 10 to secure the support rods 5, and complete the installation of the support assembly 3.
[0035] During testing, the light-emitting surface of the LCD screen is placed on the support plate 6. The balloon 8 first contacts the screen to cushion it and avoid hard impact. If the screen is heavy, the balloon 8 is flattened to increase the contact area with the screen and reduce the pressure. At the same time, the protrusion 9 at the bottom of the inner wall provides flexible support when the balloon 8 is compressed to the limit to prevent the screen from directly contacting the support plate 6.
[0036] Next, insert the power cord of the LCD screen into the power connector of the machine body 1, and start the power by controlling the display screen. At this time, the operator inspects the back of the display screen. At the same time, several cameras 2 electrically connected to the machine body 1 transmit the real-time situation of the light-emitting surface of the display screen to the control display screen, realizing simultaneous double-sided detection of the display screen without flipping the display screen, thus improving detection efficiency.
[0037] During the testing process, the downward-sloping bend 7 of the support plate 6 can prevent the display screen from hitting the edge of the support plate 6; when the display screen comes into contact with the bend 7, the arc surface 11 reduces the sharp edges, further reducing the risk of damage to the display screen and providing comprehensive protection for the display screen.
[0038] 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 liquid crystal display screen electrical testing frame, comprising a body (1), characterized in that, Also includes: Support assembly (3), the support assembly (3) includes a plurality of support rods (5) disposed on the body (1), the plurality of support rods (5) are evenly distributed on the body (1) at intervals, and the top of the plurality of support rods (5) is fixed with a support plate (6). Several cameras (2) are electrically connected to the body (1).
2. The LCD screen electrical testing frame according to claim 1, characterized in that, The top of the body (1) is fixed with a round sleeve (4), and the support rod (5) is movably inserted into the inside of the round sleeve (4). The surface of the round sleeve (4) is threaded with a bolt (10), and the bolt (10) abuts against the surface of the support rod (5).
3. The LCD screen electrical testing frame according to claim 1, characterized in that, The support plate (6) has a bent portion (7) at its edge, and the bent portion (7) is inclined downward.
4. The LCD screen electrical testing frame according to claim 3, characterized in that, The surface of the bent portion (7) is provided with an arc-shaped surface (11).
5. The LCD screen electrical testing frame according to claim 1, characterized in that, The top of the support plate (6) is fixed with a balloon (8), and the surface of the balloon (8) is provided with anti-slip stripes.
6. The liquid crystal display electrical testing frame according to claim 5, characterized in that, The inner wall of the balloon (8) is provided with a protrusion (9) at the bottom.