Test picture detection jig

By designing a combination of rotating components and a testing platform, multi-angle automated testing of LCD display modules was achieved, solving the problem of limited testing angles, improving testing efficiency, and reducing the false negative rate.

CN223471210UActive Publication Date: 2025-10-24CHONGQING LIANGJIANG LIANCHUANG ELECTRONICS CO LTD
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Patent Information

Application Number
CN202423039308.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-10-24
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

Existing LCD module testing fixtures have limited testing angles, requiring manual head twisting for multi-angle inspection, which is inefficient and has a high rate of missed detections.

Method used

A testing fixture comprising a base, a rotating component, and a testing platform was designed. By combining a rotating body and a universal ball, multi-angle testing of the LCD display module is achieved. Combined with the fixing of an electric push rod and a buckle, automated multi-view testing is realized.

Benefits of technology

This improved the testing efficiency of LCD display modules, reduced the missed detection rate, and enhanced the effectiveness of quality inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a test picture detection jig, including the base, rotation subassembly and test platform set up from bottom to top, rotation subassembly includes connecting seat, rotator, universal ball and connecting portion, connecting seat is provided on the base, connecting seat is rotatingly connected with rotator, connecting body concaves inwards to form the accommodation cavity, the universal ball is provided in the accommodation cavity, and the universal ball is connected with the universal ball. The upper end of the universal ball is provided with a connecting part, the connecting part is connected with the test platform, the test platform is provided with a placing area and a functional area, the placing area is internally provided with a plurality of hollow parts and a plurality of buckles, the bottom of the placing area is provided with a plurality of electric push rods, the output ends of the electric push rods are arranged in the hollow parts, and the buckles are movably connected with the test platform. The functional area is provided with a lightening device circuit board and a hot-plug-proof key, the lightening device circuit board is electrically connected with the hot-plug-proof key, the relative position of the rotating body and the connecting seat is changed by rotating the rotating body, and the relative position of the universal ball and the rotating body is changed by rotating the universal ball, so that the detection angle of the liquid crystal display module is changed, and the effect of quality inspection work is enhanced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of auxiliary jig, especially to a test picture detection jig. BACKGROUND

[0002] In the production process of liquid crystal display module, the test jig is the most important link for testing defective products in the production process, the existing test jig only has a positive viewing angle, and manual head twisting is needed to realize multi-viewing angle testing, which is low in testing efficiency and has a high rate of missed detection, thereby causing high loss in the production process, in order to improve the detection efficiency and meet the multi-angle and multi-viewing angle detection picture jig, the detection jig for changing the test angle by rotating the test can improve the detection efficiency and reduce the use cost. UTILITY MODEL CONTENTS

[0003] In view of the above situation, it is necessary to provide a test picture detection jig for the problem of limited detection angle of the test picture detection jig in the prior art.

[0004] A test picture detection jig comprises a base, a rotating assembly and a test platform arranged from bottom to top, the rotating assembly comprises a connecting seat, a rotating body, a universal ball and a connecting part, the connecting seat is arranged on the base, the connecting seat is rotationally connected with the rotating body, the rotating body is concave to form a containing cavity, the universal ball is arranged in the containing cavity, the upper end of the universal ball is provided with the connecting part, the connecting part is connected with the test platform, the test platform is provided with a placement area and a function area, a plurality of hollow parts and a plurality of buckles are arranged in the placement area, a plurality of electric push rods are arranged at the bottom of the placement area, the output ends of the electric push rods are arranged in the hollow parts, the buckles are movably connected with the test platform, the buckles are used for fixing the liquid crystal display module, the function area is provided with a lighting device circuit board and a heat-resistant plug key, and the lighting device circuit board is electrically connected with the heat-resistant plug key.

[0005] The utility model has the advantages of the following:

[0006] The liquid crystal display module is placed in the placing area, the electric push rod slowly descends, when the liquid crystal display module is completely and flatly placed in the placing area, the electric push rod is controlled to stop contraction, the periphery of the liquid crystal display module is fixed through buckles, the lighting device circuit board is electrically connected with the liquid crystal display module, the anti-hot plug key is pushed down, during the detection, the rotary body is rotated to change the relative position thereof with the connecting seat, so that the test platform is rotated along the horizontal direction, thereby changing the detection angle of the liquid crystal display module in the horizontal direction, the universal ball is rotated to change the relative position thereof with the rotary body, so that the test platform is rotated along the horizontal or vertical direction, thereby changing the detection angle of the liquid crystal display module in the horizontal and vertical directions, after the detection is completed, the electric push rod is controlled to lift the liquid crystal display module, the liquid crystal display module is taken away, and the whole multi-angle detection process can improve the screening of the liquid crystal display module and enhance the effectiveness of the product inspection work.

[0007] Further, the connecting seat is provided with a horizontal scale disc.

[0008] Further, the outer wall of the rotary body is provided with a handle, a first knob and a second knob, the first knob and the second knob are vertically arranged, the first knob and the second knob respectively pass through the outer wall of the rotary body and respectively abut against the universal ball.

[0009] Further, the length of the output end of the electric push rod is greater than the thickness of the test platform.

[0010] Further, the output end of the electric push rod is provided with an anti-static part.

[0011] Further, one end of the placing area is concave to form a recess, and a mirror is arranged in the recess.

[0012] Further, a Teflon layer is arranged on the placing area.

[0013] Further, a side of the base is movably connected with a flip cover, a cavity is arranged in the base, the cavity is used for accommodating a test board, and the test board is electrically connected with the lighting device circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the test picture detection jig of the utility model;

[0015] Figure 2 It is a side view of the test picture detection jig of the utility model;

[0016] Figure 3 It is a structural schematic view of the rotary assembly of the utility model.

[0017] In the figure: 1. Base; 11. Flip cover; 12. Chamber; 13. Threading hole; 2. Rotating assembly; 21. Connecting seat; 211. Horizontal scale plate; 22. Rotating body; 221. Handle; 222. First knob; 223. Second knob; 23. Universal ball; 24. Connecting part; 3. Test platform; 31. Placement area; 311. Hollow part; 312. Buckle; 313. Recessed part; 32. Functional area; 321. Lighting device circuit board fixing position; 322. Anti-heat plug-in key fixing position; 4. Electric push rod; 5. Reflector. DETAILED DESCRIPTION

[0018] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, the embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. Furthermore, the various embodiments of this invention, the features within the embodiments, and the features between the embodiments may be freely combined, provided there are no obvious conflicts or contradictions.

[0021] A test screen detection fixture, such as Figure 1 As shown, it includes a base 1, a rotating component 2 and a test platform 3 arranged from bottom to top.

[0022] Specifically, such as Figures 1 to 3 As shown, one side of the base 1 is movably connected to a flip cover 11, and a chamber 12 is provided in the base 1. The chamber 12 is used to accommodate a test board (not shown). The test board is electrically connected to a circuit board of the lighting device (not shown). When testing different liquid crystal display modules, it is only necessary to open the flip cover 11 and replace the test board. A threading hole 13 is provided on the base 1 to facilitate the connection of the test board to the circuit board of the lighting device.

[0023] Specifically, the rotating assembly 2 comprises a connecting seat 21, a rotating body 22, a universal ball 23 and a connecting part 24. The connecting seat 21 is arranged on the base 1, and a horizontal scale disc 211 is arranged on the connecting seat 21. The connecting seat 21 is rotationally connected with the rotating body 22. The rotating body 22 is internally concave to form a containing cavity (not shown), and the universal ball 23 is arranged in the containing cavity. An outer wall of the rotating body 22 is provided with a handle 221, a first knob 222 and a second knob 223. The first knob 222 and the second knob 223 are arranged vertically. The first knob 222 and the second knob 223 respectively pass through the outer wall of the rotating body 22 and respectively abut against the universal ball 23. The upper end of the universal ball 23 is provided with the connecting part 24, and the connecting part 24 is connected with the test platform 3. The first knob 222 and the second knob 223 are arranged at a vertical angle. The universal ball 23 is locked from the mutual direction by the first knob 222 and the second knob 223. At this time, the rotating body 22, the universal ball 23, the connecting part 24, the test platform 3 and the liquid crystal display module are relatively fixed. The rotating body 22 is driven to rotate relative to the connecting seat 21 by the handle, so as to change the horizontal direction angle. The horizontal scale disc 211 can be used to accurately grasp the change of the horizontal direction angle, so as to change the larger detection angle of the liquid crystal display module arranged in the placement area 31 in the horizontal direction. The first knob 222 or the second knob 223 is loosened. The universal ball 23 and the containing cavity of the rotating body 22 form a certain gap, so as to drive the connecting part 24, the test platform 3 and the liquid crystal display module to rotate in the horizontal direction or the vertical direction. The liquid crystal display module obtains the larger detection angle in the horizontal direction or the vertical direction.

[0024] Specific, test platform 3 is provided with a placement area 31 and a functional area 32, the placement area 31 is provided with a plurality of hollow parts 311 and a plurality of buckles 312, the bottom of the placement area 31 is provided with a plurality of electric push rods 4, the output end of the electric push rod 4 is arranged in the hollow part 311, the length of the output end of the electric push rod 311 is greater than the thickness of the test platform 3, the output end of the electric push rod 3 is provided with an anti-static part (not shown), the buckle 312 is rotatably connected with the test platform 3, the buckle 312 is used for fixing the liquid crystal display module, one end of the placement area 31 is concave to form a recess 313, the recess 313 is provided with a mirror 5, the placement area 31 is covered with a teflon layer (not shown), the functional area 32 is provided with a lighting device circuit board (not shown) and a heat-resistant plug key (not shown), and the lighting device circuit board is electrically connected with the heat-resistant plug key. The operator places the liquid crystal display module in the placement area 31, controls the electric push rod 4 to slowly descend, when the liquid crystal display module is completely flat in the placement area 31, the electric push rod 4 is controlled to stop contraction, the periphery of the liquid crystal display module is fixed by rotating the buckle 312, the lighting device circuit board is electrically connected with the liquid crystal display module, the heat-resistant plug key is pulled down, and the liquid crystal display module is detected, the anti-static part and the teflon layer both play a role in static protection for the liquid crystal display module, and the heat-resistant plug key can prevent misoperation, so as to prevent damage to the liquid crystal display module, the mirror 5 can observe whether the side edge glue attached to the liquid crystal display module exists light leakage during the detection process, so as to satisfy the comprehensive detection of the liquid crystal display module, after the detection is completed, the electric push rod 311 lifts the liquid crystal display module and the test platform 3 is relatively separated, and the operator takes away the liquid crystal display module.

[0025] The utility model discloses a liquid crystal display module is placed in the placement area 31, controls the electric push rod 4 to slowly descend, when the liquid crystal display module is completely flat in the placement area 31, the electric push rod 4 is controlled to stop contraction, the periphery of the liquid crystal display module is fixed by buckle 312, the lighting device circuit board is electrically connected with the liquid crystal display module, the heat-resistant plug key is pulled down, during the detection process, the relative position of the rotating body 22 and the connecting seat 21 is changed, so that the test platform 3 rotates along the horizontal direction, thereby changing the detection angle of the liquid crystal display module in the horizontal direction, the relative position of the universal ball 23 and the rotating body 22 is changed, so that the test platform 3 rotates along the horizontal or vertical direction, thereby changing the detection angle of the liquid crystal display module in the horizontal and vertical directions, after the detection is completed, the electric push rod 4 is controlled to lift the liquid crystal display module, and the liquid crystal display module is taken away, the whole multi-angle detection process can improve the screening of the liquid crystal display module and enhance the effectiveness of the product inspection work.

[0026] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0027] The above-described embodiments only express the implementation of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A test pattern detection fixture, comprising: The utility model discloses a test platform for LCD module, including from bottom to top setting base, rotating assembly and test platform, rotating assembly includes connecting seat, rotating body, universal ball and connecting portion, connecting seat sets up on the base, connecting seat is connected with rotating body rotation, the recess is formed in the rotating body and is formed with accommodating cavity, is equipped with universal ball in accommodating cavity, the upper end of universal ball is equipped with connecting portion, connecting portion is connected with test platform, test platform is equipped with placement area and function area, is equipped with a plurality of hollow parts and a plurality of buckles in placement area, the bottom of placement area is equipped with a plurality of electric push rods, and the output of electric push rod is equipped in hollow part, and buckle is connected with test platform movably, and buckle is used for fixing LCD module, and function area is equipped with bright device circuit board and heat-resistant hot plug key, and bright device circuit board is electrically connected with heat-resistant hot plug key.

2. The test pattern detection fixture of claim 1, wherein: The connecting seat is provided with a horizontal scale dial.

3. The test pattern detection fixture of claim 1, wherein: The outer wall of the rotating body is provided with a handle, a first knob and a second knob.

4. The test pattern detection fixture of claim 1, wherein: The length of the output end of the electric push rod is greater than the thickness of the test platform.

5. The test pattern detection fixture of claim 4, wherein: The output end of the electric push rod is provided with an anti-static part.

6. The test pattern detection fixture of claim 1, wherein: One end of the placement area is recessed to form a recess, and a mirror is arranged in the recess.

7. The test pattern detection fixture of claim 1, wherein: The placement area is covered with a layer of Teflon.

8. The test pattern detection fixture of claim 1, wherein: One side of the base is movably connected with a flip cover. The base is provided with a chamber for accommodating a test board, and the test board is electrically connected with the bright device circuit board.