Screen brightness uniformity detection jig

By designing a screen brightness uniformity testing fixture with clamping and limiting components and a cleaning and dust removal device, the problem of detecting diverse screen shapes was solved, achieving precise positioning and an efficient testing process.

CN224231232UActive Publication Date: 2026-05-12HUILI INTELLIGENT TECH (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUILI INTELLIGENT TECH (SHANGHAI) CO LTD
Filing Date
2025-05-07
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing screen inspection fixtures cannot adapt to diverse screen shapes, resulting in inaccurate inspection results and low efficiency.

Method used

A screen brightness uniformity testing fixture was designed, which adopts a clamping and limiting component and a cleaning and dust removal device. The uniform rotation of the bidirectional lead screw is achieved by the meshing of the bevel gear driven by the motor. The clamping plate accurately fixes the screen, and the cleaning roller automatically completes the cleaning and transfer of the screen.

Benefits of technology

It enables precise positioning and fixation of diverse screen shapes, ensuring the reliability and consistency of test results, while improving the continuity of the testing process and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of screen detection, and particularly relates to a screen brightness uniformity detection jig which comprises a base, the base is connected with a lifting rod in a sliding mode, the lifting rod is fixedly connected with an operation table, the base is fixedly connected with a working table, and the working table is provided with a clamping limiting assembly. The clamping and limiting assembly comprises a motor. According to the screen brightness uniformity detection jig, rotation of a first bevel gear is affected through the arranged clamping limiting assembly and work of a motor, constant-speed rotation of a two-way lead screw is achieved, two sets of clamping plates on the two-way lead screw move, sliding grooves assist in stable sliding in the sliding process, when the two sets of clamping plates move in the opposite directions, the two sets of clamping plates gradually get close to and make contact with a screen, and the screen brightness uniformity is detected. The screen is fixed on the operation table, and the bidirectional screw rod can ensure the positioning accuracy of the clamping plate, so that the screen can be accurately fixed at a preset position of the operation table, and the reliability and the consistency of a detection result are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of screen detection technology, specifically a screen brightness uniformity detection fixture. Background Technology

[0002] In modern electronic devices, screen brightness is one of the key factors affecting display quality and user experience. Appropriate screen brightness ensures that users can clearly see the content on the screen under different ambient lighting conditions, whether in bright outdoor sunlight or in a dimly lit indoor environment.

[0003] Currently, with the development of technology, the shape of screens is becoming more and more diverse. In addition to the common rectangular screen, there are also curved screens, irregularly shaped screens, etc. Fixed screen detection fixtures cannot be adjusted according to the shape of the screen. In view of this, we propose a screen brightness uniformity detection fixture. Utility Model Content

[0004] The main objective of this invention is to provide a screen brightness uniformity detection fixture that can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model proposes a screen brightness uniformity testing fixture, comprising a base, a lifting rod slidably connected to the base, the lifting rod being fixedly connected to an operating table, a testing component being provided on one side of the base, the testing component being provided with a testing instrument, a worktable being fixedly connected to the base, a clamping and limiting component being provided on the worktable, and a cleaning and dust removal device being provided on the clamping and limiting component, the clamping and limiting component comprising:

[0006] The worktable is fixedly connected to a motor, and the output end of the motor is fixedly connected to a bevel gear.

[0007] The second bevel gear is meshed with the first bevel gear and passes through the operating table. The second bevel gear is fixedly connected to the bidirectional lead screw.

[0008] Preferably, the bidirectional lead screw is threadedly connected to a clamping plate. The end of the clamping plate away from the bidirectional lead screw is slidably connected to a groove opened on the surface of the operating table. The two sets of clamping plates on the bidirectional lead screw move, and the groove assists in smooth sliding during the sliding process to prevent deviation. When the two sets of clamping plates move towards each other, they will gradually approach and contact the screen, and finally clamp and fix the screen on the operating table.

[0009] Preferably, the cleaning and dust removal device includes a support base, and the outer wall of the workbench is fixedly connected to the support base.

[0010] Preferably, the connecting rod of the second bevel gear is connected to the rotating rod via a transmission belt, and the rotating rod is rotatably connected to the support base, so that the motion is transmitted to the rotating rod through the rotation of the second bevel gear.

[0011] Preferably, the rotating rod is fixedly connected to the cleaning roller, which is positioned above the operating table. The rotating rod drives the cleaning roller to rotate, and the screen that has completed the inspection is transferred to the next process through the cleaning of the cleaning roller.

[0012] Preferably, the end of the cleaning roller away from the rotating rod is rotatably connected to the support plate, and the stable rotation of the cleaning roller is supported by the support plate, thereby ensuring the smoothness of screen cleaning and conveying.

[0013] This invention provides a fixture for detecting screen brightness uniformity. It has the following beneficial effects:

[0014] (1) The screen brightness uniformity testing fixture uses a clamping and limiting component to drive the output end of the motor, which in turn affects the rotation of bevel gear one. Bevel gear one meshes with bevel gear two to achieve uniform rotation of the bidirectional screw. The two sets of clamping plates on the bidirectional screw move, and the sliding groove assists in smooth sliding during the sliding process to prevent deviation. When the two sets of clamping plates move towards each other, they will gradually approach and contact the screen, and finally clamp and fix the screen on the operating table. The thread accuracy of the bidirectional screw can ensure the positioning accuracy of the clamping plates during the movement process, so that the screen can be accurately fixed in the predetermined position of the operating table, and precise screen positioning can be performed to ensure the reliability and consistency of the test results.

[0015] (2) The screen brightness uniformity testing fixture uses a cleaning and dust removal device to transmit motion to the rotating rod through the rotation of bevel gear two. The rotating rod drives the cleaning roller to rotate, and the screen that has finished testing is transferred to the next process through the cleaning roller. The cleaning roller combines the screen cleaning and transfer functions into one. After the screen is tested, no additional equipment is needed to clean and transfer the screen. The cleaning roller can automatically complete these two tasks during rotation, improving the continuity of the workflow and production efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;

[0019] Figure 3 For practical purposes Figure 2 Schematic diagram of structure A in the middle;

[0020] Figure 4 This is a schematic diagram of the cleaning and dust removal device of this utility model;

[0021] Figure 5 For practical purposes Figure 4 Schematic diagram of structure B in the middle;

[0022] Figure 6 This is a schematic diagram of the clamping and limiting component structure of this utility model.

[0023] Explanation of icon numbers:

[0024] 1. Base; 2. Lifting rod; 3. Operating table; 4. Detection component; 5. Tester; 6. Workbench; 7. Clamping and limiting component; 71. Motor; 72. Bevel gear one; 73. Bevel gear two; 74. Double-acting lead screw; 75. Clamping plate; 76. Slide groove; 8. Cleaning and dust removal device; 81. Support base; 82. Rotating rod; 83. Transmission belt; 84. Cleaning roller; 85. Support plate.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-6This utility model proposes a screen brightness uniformity testing fixture, including a base 1, a lifting rod 2 slidably connected to the base 1, and an operating table 3 fixedly connected to the lifting rod 2. By sliding the lifting rod 2, the operating table 3 can be easily adjusted to a suitable height to meet the testing requirements. A testing component 4 is provided on one side of the base 1, and a tester 5 is provided on the testing component 4. A workbench 6 is fixedly connected to the base 1. During the testing process, the screen needs to remain stable. The workbench 6 provides a platform for placing the screen. After the screen is placed and fixed, the testing component 4 moves above the screen, and the tester 5 begins to test the brightness of the screen. A clamping and limiting component 7 is provided on the workbench 6, and a cleaning and dust removal device 8 is provided on the clamping and limiting component 7. The clamping and limiting component 7 includes a motor 71.

[0028] In this embodiment of the invention, to achieve precise screen positioning and ensure the reliability and consistency of the detection results, a motor 71 is fixedly connected to the outer wall of the worktable 6. The output end of the motor 71 is fixedly connected to a bevel gear 72. The operation of the motor 71 drives the output end, thereby affecting the rotation of the bevel gear 72. The bevel gear 72 meshes with a bevel gear 73, which passes through the worktable 3. The bevel gear 73 is fixedly connected to a bidirectional lead screw 74. The meshing of the bevel gear 72 and the bevel gear 73 achieves uniform speed of the bidirectional lead screw 74. The bidirectional lead screw 74 is threadedly connected to a clamping plate 75. The end of the clamping plate 75 away from the bidirectional lead screw 74 is slidably connected to a groove 76 opened on the surface of the operating table 3. The two sets of clamping plates 75 on the bidirectional lead screw 74 move. During the sliding process, the groove 76 assists in smooth sliding and prevents deviation. When the two sets of clamping plates 75 move towards each other, they will gradually approach and contact the screen, and finally clamp and fix the screen on the operating table 3. The thread precision of the bidirectional lead screw 74 can ensure the positioning accuracy of the clamping plate 75 during the movement, so that the screen can be accurately fixed in the predetermined position of the operating table 3.

[0029] Furthermore, to improve workflow continuity and production efficiency, the cleaning and dust removal device 8 specifically includes a support base 81. The outer wall of the workbench 6 is fixedly connected to the support base 81. The connecting rod of the second bevel gear 73 is connected to the rotating rod 82 via a transmission belt 83. The rotating rod 82 is rotatably connected to the support base 81. The rotation of the second bevel gear 73 transmits motion to the rotating rod 82. The rotating rod 82 is fixedly connected to the cleaning roller 84, which is positioned above the workbench 3. The rotating rod 82 drives the cleaning roller 84 to rotate, transferring the screen that has finished inspection to the next step of the process. The end of the cleaning roller 84 away from the rotating rod 82 is rotatably connected to the support plate 85. The stable rotation of the cleaning roller 84 is supported by the support plate 85, thus ensuring the smoothness of screen cleaning and transfer. The cleaning roller 84 combines the screen cleaning and transfer functions into one. After the screen inspection is completed, no additional equipment is needed for screen cleaning and transfer. The cleaning roller 84 can automatically complete these two tasks during rotation.

[0030] In this invention, during use, the screen needs to remain stable during the testing process. The worktable 6 provides a platform for placing the screen. The operation of the motor 71 drives the output end, which in turn affects the rotation of the first bevel gear 72. The first bevel gear 72 meshes with the second bevel gear 73, achieving uniform rotation of the bidirectional lead screw 74. The two sets of clamping plates 75 on the bidirectional lead screw 74 move, and the slide groove 76 assists in smooth sliding during the sliding process to prevent deviation. When the two sets of clamping plates 75 move towards each other, they gradually approach and contact the screen, ultimately clamping and fixing the screen onto the worktable 3. The thread precision of the bidirectional lead screw 74 ensures the positioning accuracy of the clamping plates 75 during the movement, allowing the screen to be accurately fixed on the worktable 3. The predetermined position of platform 3 enables precise screen positioning, ensuring the reliability and consistency of test results. After the screen is placed and fixed, the testing component 4 moves above the screen, and the tester 5 begins to test the screen's brightness. The motion is transmitted to the rotating rod 82 through the rotation of bevel gear 73. The rotating rod 82 drives the cleaning roller 84 to rotate, and the screen that has finished testing is cleaned and transferred to the next process by the cleaning roller 84. The cleaning roller 84 combines the screen cleaning and transfer functions into one. After the screen test is completed, no additional equipment is needed for screen cleaning and transfer. The cleaning roller 84 can automatically complete these two tasks during rotation, improving the continuity of the workflow and production efficiency.

[0031] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A screen brightness uniformity testing fixture, comprising a base (1), wherein a lifting rod (2) is slidably connected to the base (1), the lifting rod (2) is fixedly connected to an operating table (3), and a testing component (4) is provided on one side of the base (1), wherein a testing instrument (5) is provided on the testing component (4), characterized in that: The base (1) is fixedly connected to a workbench (6), and a clamping and limiting component (7) is provided on the workbench (6). A cleaning and dust removal device (8) is provided on the clamping and limiting component (7). The clamping and limiting component (7) includes: Motor (71), the outer wall of the worktable (6) is fixedly connected to the motor (71), and the output end of the motor (71) is fixedly connected to the bevel gear (72); The second bevel gear (73) meshes with the first bevel gear (72) and the second bevel gear (73). The second bevel gear (73) passes through the operating table (3) and is fixedly connected to the bidirectional lead screw (74).

2. The screen brightness uniformity detection fixture according to claim 1, characterized in that: The bidirectional lead screw (74) is threadedly connected to a clamping plate (75), and the end of the clamping plate (75) away from the bidirectional lead screw (74) is slidably connected in a groove (76) opened on the surface of the operating table (3).

3. The screen brightness uniformity detection fixture according to claim 1, characterized in that: The cleaning and dust removal device (8) includes a support base (81), and the outer wall of the workbench (6) is fixedly connected to the support base (81).

4. The screen brightness uniformity detection fixture according to claim 3, characterized in that: The connecting rod of the second bevel gear (73) is connected to the rotating rod (82) via a transmission belt (83), and the rotating rod (82) is rotatably connected to the support base (81).

5. The screen brightness uniformity detection fixture according to claim 4, characterized in that: The rotating rod (82) is fixedly connected to the cleaning roller (84), which is positioned above the operating table (3).

6. The screen brightness uniformity detection fixture according to claim 5, characterized in that: The end of the cleaning roller (84) away from the rotating rod (82) is rotatably connected to the support plate (85).