Three-side CCD projection detection device for LCM (Liquid Crystal Module)

By designing a three-sided CCD projection inspection device for LCM modules, and using an X-axis transverse component and a CCD lens component for image acquisition, the problems of low efficiency and insufficient accuracy in LCM module encapsulation inspection were solved, achieving efficient and accurate inspection results.

CN224035263UActive Publication Date: 2026-03-24SHENZHEN TXD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

In existing technologies, the sealing detection of LCM modules is inefficient and inaccurate, while conventional handheld magnifying glass detection methods are inefficient and have accuracy issues.

Method used

Design a three-side CCD projection inspection device for LCM modules, including a base plate, a mounting bracket assembly, an X-axis transverse movement assembly, a positioning fixture assembly, an upper CCD lens assembly, and a lower CCD lens assembly. The X-axis transverse movement assembly drives the positioning fixture and the CCD lens assembly to acquire images, thereby realizing the inspection of the three sides of the LCM module.

Benefits of technology

It improves detection efficiency and accuracy, reduces the risk of scratches on the LCM module during operation, and enhances detection results.

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Abstract

The utility model discloses an LCM (Liquid Crystal Module) three-side CCD (Charge Coupled Device) projection detection device, which comprises a bottom plate, a mounting frame assembly, an X-axis transverse moving assembly, a positioning jig assembly, an upper CCD lens assembly, an upper CCD lens mounting assembly, a lower CCD lens assembly and a lower CCD lens mounting assembly, the positioning jig assembly is arranged on the X-axis transverse moving assembly, the upper CCD lens assembly is installed on the installation frame assembly through the upper CCD lens installation assembly, and the relative positions of the upper CCD lens assembly and the installation frame assembly in the Y direction and the Z direction can be adjusted. And the lower CCD lens assembly is mounted on the mounting rack assembly through the lower CCD lens mounting assembly. The beneficial effects of the utility model lie in that the detection efficiency and accuracy can be improved, and the detection effect is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to display module technical field especially relates to a three side edge CCD projection detection device of LCM module. BACKGROUND

[0002] LCM module needs to detect the effect of sealing glue after three edge sealing glue operation, the conventional scheme is that the detection personnel handholds magnifying glass and observes the two long edges and top edge of LCM module with the LCM module to be detected, thereby realizing the appearance detection of sealing glue place, but because the thickness of sealing glue is only about 1.2mm, this detection mode is not high in efficiency and also has the problem of accuracy.

[0003] Therefore, the prior art has defects and needs to be improved. CONTENT OF UTILITY MODEL

[0004] The utility model aims at overcoming at least part prior art's insufficient, provides a three side edge CCD projection detection device of LCM module.

[0005] The utility model discloses a three side edge CCD projection detection device of LCM module, include: bottom plate, mounting frame subassembly, X axle horizontal shift subassembly, positioning fixture subassembly, upper CCD lens subassembly, upper CCD lens mounting subassembly, lower CCD lens subassembly and lower CCD lens mounting subassembly, mounting frame subassembly and X axle horizontal shift subassembly all set up on bottom plate, positioning fixture subassembly sets up on X axle horizontal shift subassembly, positioning fixture subassembly is used for positioning the LCM module to be detected and can support LCM module horizontal and vertical, X axle horizontal shift subassembly is used for driving positioning fixture subassembly moves in X direction, upper CCD lens subassembly passes through upper CCD lens mounting subassembly and installs on mounting frame subassembly, and upper CCD lens subassembly can adjust and mounting frame subassembly in Y direction and Z direction relative position, lower CCD lens subassembly passes through lower CCD lens mounting subassembly and installs on mounting frame subassembly, and lower CCD lens subassembly can adjust and mounting frame subassembly in Y direction and Z direction relative position, upper CCD lens subassembly and lower CCD lens subassembly are perpendicular and set up, and upper CCD lens subassembly and lower CCD lens subassembly are electrically connected with display device.

[0006] Further, the positioning fixture assembly includes a first block group and a second block group, the first block group and the second block group each include a plurality of blocks, the first block group is used for positioning the vertical LCM module to be detected, and the second block group is used for positioning the horizontal LCM module to be detected.

[0007] Further, the LCM module placed on the positioning fixture assembly forms a plurality of taking grooves.

[0008] Further, the positioning jig assembly comprises a jig bottom plate and a jig panel stacked on the jig bottom plate, a plurality of block grooves and a taking groove are formed on the jig panel, and blocks are arranged on the block grooves.

[0009] Further, the X-axis horizontal movement assembly can adjust the mounting position in the Y direction on the bottom plate.

[0010] Further, the X-axis horizontal movement assembly comprises a mounting plate and a plurality of slide rails arranged on the mounting plate, the slide rails are arranged in parallel with the X-axis, corresponding slide blocks are arranged on the slide rails, and the positioning jig assembly is fixed with the slide blocks.

[0011] Further, elastic buffers are arranged at the two ends of the slide rails.

[0012] By adopting the above scheme, the beneficial effects of the present application are as follows: the X-axis horizontal movement assembly is arranged to facilitate the operation of the LCM module, the CCD lens assembly is arranged to display the image collected by the LCM module, the efficiency and accuracy of detection can be improved, the detection effect is ensured, and the problem of scratching the LCM module during operation can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of an embodiment of the present application.

[0014] Figure 2 It is an installation schematic view of the X-axis horizontal movement assembly of an embodiment of the present application.

[0015] Figure 3 It is an exploded view of the positioning jig assembly of an embodiment of the present application.

[0016] Figure 4 It is an installation schematic view of the upper CCD lens assembly and the lower CCD lens assembly of an embodiment of the present application.

[0017] Figure 5 It is a structural schematic view of the vertical placement state of the LCM module of an embodiment of the present application.

[0018] Figure 6 It is a structural schematic view of the horizontal placement state of the LCM module of an embodiment of the present application. DETAILED DESCRIPTION

[0019] The present application will be described in detail below in combination with the drawings and specific embodiments.

[0020] Please refer to Figures 1 to 6In the embodiment, the utility model provides a kind of LCM module three side edge CCD projection detection device, comprising: bottom plate 1, mounting rack component 4, X-axis transverse component 2, positioning fixture component 3, upper CCD lens component 8, upper CCD lens mounting component 7, lower CCD lens component 6 and lower CCD lens mounting component 5.

[0021] The mounting rack component 4 and the X-axis transverse component 2 are both arranged on the bottom plate 1, the positioning fixture component 3 is arranged on the X-axis transverse component 2, the positioning fixture component 3 is used for positioning the LCM module 9 to be measured and can support the horizontal and vertical placement of the LCM module 9, and the X-axis transverse component 2 is used to drive the positioning fixture component 3 to move in the X direction.

[0022] Further, the positioning fixture component 3 includes a first stop block set and a second stop block set, and each of the first stop block set and the second stop block set includes a plurality of stop blocks 33.

[0023] Further, the LCM module 9 placed on the positioning fixture component 3 is formed with a plurality of taking grooves 322.

[0024] Further, the positioning fixture component 3 includes a fixture bottom plate 31 and a fixture panel 32 stacked on the fixture bottom plate 31, the fixture panel 32 is formed with a plurality of stop block grooves 321 and taking grooves 322, and the stop blocks 33 are arranged on the stop block grooves 321. This structure reduces the processing difficulty and cost of the positioning fixture component 3 and improves the versatility of the device. When different display modules need to be adapted, only a new fixture panel 32 needs to be designed and processed.

[0025] Further, the X-axis transverse component 2 includes a mounting plate 21 and a plurality of slide rails 22 arranged on the mounting plate 21, the slide rails 22 are arranged in parallel with the X-axis, corresponding slide blocks 23 are arranged on the slide rails 22, and the positioning fixture component 3 is fixed with the slide blocks 23.

[0026] Further, the two ends of the slide rails 22 are provided with elastic buffers 24, which can buffer the positioning fixture component 3 and avoid damaging the LCM module 9.

[0027] Further, the X-axis transverse component 2 can adjust the installation position in the Y direction on the bottom plate 1, so as to adjust the position of the LCM module 9. The specific implementation structure is that corresponding strip-shaped installation grooves 211 are arranged on the mounting plate 21, and when the strip-shaped installation grooves 211 are installed with the bottom plate 1, the corresponding installation position can be adjusted.

[0028] The upper CCD lens assembly 8 is installed on the mounting frame assembly 4 through the upper CCD lens mounting assembly 7, and the upper CCD lens assembly 8 can adjust the relative position with the mounting frame assembly 4 in the Y direction and the Z direction, the lower CCD lens assembly 6 is installed on the mounting frame assembly 4 through the lower CCD lens mounting assembly 5, and the lower CCD lens assembly 6 can adjust the relative position with the mounting frame assembly 4 in the Y direction and the Z direction, the upper CCD lens assembly 8 and the lower CCD lens assembly 6 are vertically arranged, and the upper CCD lens assembly 8 and the lower CCD lens assembly 6 are electrically connected with the display device. The upper CCD lens assembly 8 and the lower CCD lens assembly 6 respectively capture the same region of the LCM module 9 placed on the positioning jig assembly 3 at two angles.

[0029] Further, in the embodiment, the upper CCD lens mounting assembly 7 and the lower CCD lens mounting assembly 5 each include a Z mounting structure 51 and a Y mounting structure 52, the Z mounting structure 51 is installed on the mounting frame assembly 4, the Y mounting structure 52 is installed on the Z mounting structure 51, and the Y mounting structure 52 is used to install and fix the corresponding upper CCD lens assembly 8 and lower CCD lens assembly 6. A strip-shaped mounting groove for installing the Z mounting structure 51 is formed on the mounting frame assembly 4, so that the Z mounting structure 51 can adjust the installation position on the mounting frame assembly 4 in the Z direction, and a strip-shaped mounting groove for installing the Y mounting structure 52 is formed on the Z mounting structure 51, so that the Y mounting structure 52 can adjust the installation position on the Z mounting structure 51 in the Y direction, so that the corresponding upper CCD lens assembly 8 and lower CCD lens assembly 6 can adjust the position relative to the mounting frame assembly 4 in the Y direction and the Z direction, facilitating the adjustment of the focus LCM module 9 during testing.

[0030] Please continue to refer to Figures 1 to 6 In the scheme, when the detection device works, the LCM module 9 to be tested is placed in the corresponding position of the positioning jig assembly 3 in a horizontal or vertical manner, and then the positioning jig assembly 3 is pushed to move the LCM module 9 in the X direction, and the upper CCD lens assembly 8 and the lower CCD lens assembly 6 collect images at the corresponding positions and display them on the display device. Whether the appearance of the seal is qualified can be judged by observing the image displayed on the display device, so as to realize the detection of the three-side position of the LCM module 9.

[0031] In summary, the beneficial effects of the scheme are that the X-axis horizontal moving assembly is provided to facilitate the operation of the LCM module, and the CCD lens assembly is provided to collect images of the LCM module and display them, which can improve the detection efficiency and accuracy, ensure the detection effect, and reduce the scratching of the LCM module during the operation process.

[0032] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A three-sided CCD projection detection device for an LCM module, characterized in that, include: The system comprises a base plate, a mounting bracket assembly, an X-axis horizontal movement assembly, a positioning fixture assembly, an upper CCD lens assembly, an upper CCD lens mounting assembly, a lower CCD lens assembly, and a lower CCD lens mounting assembly. The mounting bracket assembly and the X-axis horizontal movement assembly are both mounted on the base plate. The positioning fixture assembly is mounted on the X-axis horizontal movement assembly and is used to position the LCM module under test, supporting both horizontal and vertical placement of the LCM module. The X-axis horizontal movement assembly drives the positioning fixture assembly to move in the X-axis direction. The upper CCD lens assembly is mounted on the mounting bracket assembly via the upper CCD lens mounting assembly, and its relative position to the mounting bracket assembly in the Y and Z directions can be adjusted. The lower CCD lens assembly is mounted on the mounting bracket assembly via the lower CCD lens mounting assembly, and its relative position to the mounting bracket assembly in the Y and Z directions can also be adjusted. The upper and lower CCD lens assemblies are vertically arranged and are both electrically connected to the display device.

2. The LCM module three-side CCD projection detection device according to claim 1, characterized in that, The positioning fixture assembly includes a first block group and a second block group. Each of the first block group and the second block group includes a plurality of blocks. The first block group is used to position the vertically placed LCM module to be tested, and the second block group is used to position the horizontally placed LCM module to be tested.

3. The LCM module three-side CCD projection detection device according to claim 1, characterized in that, The LCM module placed on the positioning fixture assembly has several pick-up grooves.

4. The LCM module three-side CCD projection detection device according to any one of claims 1 to 3, characterized in that, The positioning fixture assembly includes a fixture base plate and a fixture panel stacked on the fixture base plate. The fixture panel has a plurality of stop slots and a pick-up groove, and the stop blocks are disposed on the stop slots.

5. The LCM module three-side CCD projection detection device according to claim 1, characterized in that, The X-axis transverse component can be adjusted to its Y-axis mounting position on the base plate.

6. The LCM module three-side CCD projection detection device according to claim 1 or 5, characterized in that, The X-axis transverse movement assembly includes: a mounting plate and a plurality of slide rails disposed on the mounting plate. The slide rails are arranged parallel to the X-axis, and corresponding sliders are provided on the slide rails. The positioning fixture assembly is fixed to the sliders.

7. The LCM module three-side CCD projection detection device according to claim 6, characterized in that, The slide rail is equipped with elastic buffers at both ends.