Laptop LCD defect detection equipment

Abstract

The utility model relates to the technical field of LCD (Liquid Crystal Display) defect detection, in particular to laptop LCD defect detection equipment, which comprises a rack, a cabinet body, a CCD (Charge Coupled Device) camera, a light source lamp, a positioning component, a conveying component and a lightening component, the rack is used for supporting, the cabinet body is covered on the outer side of the CCD camera, the light source lamp provides a light source for photographing of the CCD camera, the conveying component conveys a laptop to a photographing position of the CCD camera, and the lightening component is used for lightening the laptop. The positioning component is used for positioning the position of the notebook computer, the lightening component is used for lightening the LCD of the notebook computer, the CCD camera is used for acquiring LCD image information and uploading the LCD image information to the control center, and the control center is used for detecting defective products of the LCD by utilizing intelligent template matching software based on deep learning, that is, the software detects defects through gray difference. Complicated hardware adjustment and calibration processes are not involved, and the complexity of operation and maintenance is reduced compared with a method using a linear array scanning camera and matched hardware.

Description

Technical Field

[0001] The utility model relates to the technical field of LCD defect detection, in particular to a notebook LCD defect detection device. Background Art

[0002] Electronic products, such as notebooks, are used more and more frequently in people's daily lives, and the demand for them is gradually increasing. The demand for LCDs is also increasing, and users have higher and higher requirements for product quality. Traditional quality control mainly relies on manual inspection, which is labor-intensive and time-consuming. In addition, LCD defects are small and cannot be identified by the human eye, resulting in serious missed detection.

[0003] The existing announcement number CN206223686U discloses an LCD appearance defect detection system, including: a linear array scanning camera, an optical imaging lens, a linear array light source, an angle adjustment platform, an XY fine-tuning platform and a strip light exit hole; the linear array scanning camera is located on the side of the surface to be tested of the LCD display screen; the optical imaging lens is located between the linear array scanning camera and the surface to be tested of the LCD display screen and is connected to the linear array scanning camera; the linear array light source is located in the middle area between the installation plane of the linear array scanning camera and the surface to be tested of the LCD display screen and spans the surface to be tested of the LCD display screen, including a strip light exit hole of the same length and parallel to the surface to be tested of the LCD display screen; the angle adjustment platform is connected to the XY fine-tuning platform; the XY fine-tuning platform is connected to the linear array scanning camera. The optical detection device solves the problems of long time, low work efficiency and serious missed judgment in manual inspection and manual re-judgment of LCD display screens before leaving the factory.

[0004] However, the above-mentioned LCD appearance defect detection system involves the precise coordination and adjustment of multiple components, such as the angle adjustment platform and the XY fine-tuning platform, which requires the operator to have a high level of technical skills and experience, and increases the complexity of operation and maintenance. Utility Model Content

[0005] The purpose of the utility model is to provide a notebook LCD defect detection device, which solves the problem that the existing LCD appearance defect detection system involves precise matching and adjustment of multiple components, such as an angle adjustment platform and an XY fine-tuning platform, which requires the operator to have a high level of technical skills and experience, and increases the complexity of operation and maintenance.

[0006] To achieve the above-mentioned purpose, the utility model provides a notebook LCD defect detection device, including a frame and a detection component;

[0007] The detection component includes a cabinet, a CCD camera, a light source lamp, a positioning component, a conveying component and a lighting component. The cabinet is fixedly connected to the frame, the CCD camera is detachably connected to the cabinet and is located inside the cabinet, the light source lamp is detachably connected to the frame and is located around the CCD camera, the positioning component is connected to the frame, the conveying component is connected to the frame, and the lighting component is connected to the frame.

[0008] Wherein, the conveying component includes a belt conveyor, a positioning bracket, a positioning wheel and a placement plate, the belt conveyor is connected to the frame and is located in front of the CCD camera; the number of the positioning brackets is two, the two positioning brackets are respectively fixedly connected to the frame, and the two positioning brackets are respectively arranged opposite to each other; a plurality of the positioning wheels are respectively rotatably connected to the two positioning brackets; the placement plate is placed on the belt conveyor.

[0009] Wherein, the positioning component includes a positioning cylinder and a positioning plate. The positioning cylinder is detachably connected to the frame and is located between the CCD camera and the belt conveyor; the positioning plate is fixedly connected to the output end of the positioning cylinder.

[0010] Among them, the positioning component also includes a telescopic cylinder, a mounting block and a rubber-coated roller, the telescopic cylinder is detachably connected to the frame and is located on a side of the frame away from the positioning cylinder; the mounting block is fixedly connected to the output end of the telescopic cylinder; the rubber-coated roller is rotatably connected to the mounting block and is located on a side of the mounting block close to the positioning plate.

[0011] Wherein, the lighting component includes a supporting plate, a rotating base, a lighting cylinder and a knocking rod, the supporting plate is detachably connected to the frame and is located on a side of the frame close to the positioning cylinder; the rotating base is fixedly connected to the supporting plate and is located on the top of the supporting plate; the knocking rod is rotatably connected to the rotating base; the lighting cylinder is fixedly connected to the supporting plate, and the output end of the lighting cylinder is connected to the knocking rod.

[0012] The utility model discloses a notebook LCD defect detection device, wherein the frame is used for supporting, the cabinet cover is arranged on the outside of the CCD camera, the light source lamp provides light source for the CCD camera to take pictures, the conveying component conveys the notebook to the shooting position of the CCD camera, the positioning component positions the notebook, the lighting component lights up the LCD of the notebook, the CCD camera collects LCD image information and uploads it to the control center, the control center detects defective LCD products by using intelligent template matching software based on deep learning, that is, the software detects defects by grayscale difference, which can effectively improve the detection capability, improve production efficiency, unify detection consistency, reduce detection cost, and ensure the quality of notebook LCD assembly process. The method based on CCD and grayscale difference detection is simple, does not involve complicated hardware adjustment and calibration process, and reduces the complexity of operation and maintenance compared with the method using linear array scanning camera and supporting hardware. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 This is a usage status diagram of the notebook LCD defect detection device of the utility model.

[0015] Figure 2 It is a schematic diagram of the installation of the CCD camera of the utility model.

[0016] Figure 3 It is a structural schematic diagram of a notebook LCD defect detection device of the utility model.

[0017] Figure 4 The utility model Figure 3 Enlarged view of point A.

[0018] In the figure: 100-notebook, 101-frame, 102-cabinet, 103-CCD camera, 104-light source lamp, 105-belt conveyor, 106-positioning bracket, 107-positioning wheel, 108-placing plate, 109-positioning cylinder, 110-positioning plate, 111-telescopic cylinder, 112-mounting block, 113-rubber-coated roller, 201-support plate, 202-rotating base, 203-lighting cylinder, 204-knocking rod. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0020] The first embodiment of the present application is:

[0021] See also Figures 1 to 4 ,in, Figure 1 This is a usage status diagram of the notebook LCD defect detection device of the utility model. Figure 2 It is a schematic diagram of the installation of the CCD camera 103 of the present utility model. Figure 3 It is a structural schematic diagram of a notebook LCD defect detection device of the utility model. Figure 4 The utility model Figure 3 The utility model provides a notebook LCD defect detection device: comprising a frame 101 and a detection component, the detection component comprising a cabinet 102, a CCD camera 103, a light source lamp 104, a positioning component, a conveying component and a lighting component, the conveying component comprising a belt conveyor 105, a positioning bracket 106, a positioning wheel 107 and a placement plate 108, and the positioning component comprising a positioning cylinder 109, a positioning plate 110, a telescopic cylinder 111, a mounting block 112 and a rubber-coated roller 113.

[0022] According to this specific embodiment, the cabinet 102 is fixedly connected to the frame 101, the CCD camera 103 is detachably connected to the cabinet 102 and is located inside the cabinet 102, the light source lamp 104 is detachably connected to the frame 101 and is located around the CCD camera 103, the positioning component is connected to the frame 101, the conveying component is connected to the frame 101, and the lighting component is connected to the frame 101. The frame 101 is used for support, the cabinet 102 is composed of multiple plates, which are fixed on the frame 101 to form a rectangular parallelepiped with an opening on one side. The CCD camera 103 is installed inside the cabinet 102 by bolts, and the lens faces the opening of the cabinet 102. There are multiple light source lamps 104, which are installed on the frame 101 by bolts and are located at the opening of the cabinet 102. They are surrounded by the CCD camera 103 to provide a high-brightness dedicated light source for the CCD camera 103 to shoot. The positioning component positions the notebook 100, the conveying component transports the notebook 100, and the lighting component lights up the LCD of the notebook 100.

[0023] Among them, the belt conveyor 105 is connected to the frame 101 and is located in front of the CCD camera 103; the number of the positioning brackets 106 is two, the two positioning brackets 106 are respectively fixedly connected to the frame 101, and the two positioning brackets 106 are respectively arranged opposite to each other; a plurality of positioning wheels 107 are respectively rotatably connected to the two positioning brackets 106; the placement plate 108 is placed on the belt conveyor 105. The belt conveyor 105 is installed on the frame 101 and is located in front of the lens of the CCD camera 103, and is used to convey the notebook 100. The two positioning brackets 106 are respectively arranged opposite to each other and are rotatably installed with multiple positioning wheels 107. During the conveying process of the notebook 100, the notebook 100 is placed between the positioning wheels 107 on both sides to guide its conveying, and the rotation of the positioning wheels 107 reduces friction and makes the conveying smoother. The placement plate 108 is used to engage the notebook 100. The placement plate 108 is placed on the belt of the belt conveyor 105 to convey the notebook 100.

[0024] Secondly, the positioning cylinder 109 is detachably connected to the frame 101 and is located between the CCD camera 103 and the belt conveyor 105; the positioning plate 110 is fixedly connected to the output end of the positioning cylinder 109. An infrared sensor is provided on the frame 101 near the shooting range of the CCD camera 103. When the notebook 100 is transported to the shooting range of the CCD camera 103, the infrared sensor senses its position and uploads a signal to the control center. The control center controls the positioning cylinder 109 to extend, driving the positioning plate 110 to extend and hold one side of the placement plate 108.

[0025] At the same time, the telescopic cylinder 111 is detachably connected to the frame 101 and is located on a side of the frame 101 away from the positioning cylinder 109; the mounting block 112 is fixedly connected to the output end of the telescopic cylinder 111; the rubber-coated roller 113 is rotatably connected to the mounting block 112 and is located on a side of the mounting block 112 close to the positioning plate 110. When the positioning cylinder 109 is extended, the telescopic cylinder 111 is extended at the same time, driving the mounting block 112 and the rubber-coated roller 113 to extend, hold the rear of the notebook 100, and work together with the positioning plate 110 to limit the position of the notebook 100 and the LCD of the notebook 100. At the same time, the belt conveyor 105 stops running, which is convenient for the CCD camera 103 to collect images.

[0026] When the notebook LCD defect detection device of the present embodiment is used to detect the notebook 100 LCD, the placement tray 108 is respectively transported by the belt conveyor 105, driving the notebook 100 placed on the placement tray 108 to be transported. When the infrared sensor senses that the notebook 100 is transported to the shooting range of the CCD camera 103, the belt conveyor 105 stops running, the positioning cylinder 109 extends, so that the positioning plate 110 abuts against one side of the placement tray 108, and the telescopic cylinder 111 extends, so that the rubber-coated roller 113 abuts against the back of the notebook 100, and the position of the notebook 100 LCD is adjusted to facilitate the shooting of the CCD camera 103. The light source lamp 104 provides a high-brightness dedicated light source, the lighting component lights up the LCD of the notebook 100, and the CCD camera 103 collects LCD image information and uploads it to the control center. The control center uses intelligent template matching software based on deep learning to detect defective LCD products, that is, the software detects defects through grayscale differences, detects LCD discoloration, bad pixels, bright lines, light leakage and other defects, which can effectively improve the detection capability, improve production efficiency, unify detection consistency, reduce detection costs, and ensure the quality of the notebook 100 LCD assembly process. The method based on CCD and grayscale difference detection is simple, does not involve complicated hardware adjustment and calibration processes, and reduces the complexity of operation and maintenance compared to the method using a linear array scanning camera and supporting hardware.

[0027] The second embodiment of the present application is:

[0028] Based on the first embodiment, please refer to Figure 3 and Figure 4 ,in, Figure 3 It is a structural schematic diagram of a notebook LCD defect detection device of the utility model. Figure 4 The utility model Figure 3 The lighting component of this embodiment includes a support plate 201, a rotating base 202, a lighting cylinder 203 and a knocking rod 204.

[0029] According to this specific embodiment, the support plate 201 is detachably connected to the frame 101 and is located on a side of the frame 101 close to the positioning cylinder 109; the rotating base 202 is fixedly connected to the support plate 201 and is located on the top of the support plate 201; the knocking rod 204 is rotatably connected to the rotating base 202; the lighting cylinder 203 is fixedly connected to the support plate 201, and the output end of the lighting cylinder 203 is connected to the knocking rod 204. The support plate 201 is installed at the opening of the cabinet 102, and the rotating base 202 is fixed on the top. The rear of the knocking rod 204 is connected to the rotating base 202 through a pin shaft and rotates around the rotating base 202. The lighting cylinder 203 is fixed on the support plate 201 and is located at the rear end of the knocking rod 204. The output end is connected to the knocking rod 204. The knocking rod 204 is driven to rotate along the rotating base 202 through the extension and retraction of the lighting cylinder 203.

[0030] When using a notebook LCD defect detection device of the present embodiment to collect images of the notebook 100 LCD, the lighting cylinder 203 extends to drive the rear end of the knocking rod 204 upward, and then the front end of the knocking rod 204 is downward to knock the keyboard of the notebook 100 to light up the notebook 100 LCD, and then the CCD camera 103 collects LCD image information, and uses the intelligent template matching software based on deep learning to detect defective LCD products, that is, the software detects LCD defects such as discoloration, bad pixels, bright lines, and light leakage through grayscale differences, which can effectively improve the detection capability, improve production efficiency, unify detection consistency, reduce detection costs, and ensure the quality of the notebook 100 LCD assembly process. The method based on CCD and grayscale difference detection is simple, does not involve complex hardware adjustment and calibration processes, and reduces the complexity of operation and maintenance compared to the method using a linear array scanning camera and supporting hardware.

[0031] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A notebook LCD defect detection device, comprising a frame, characterized in that: Also included are detection components; The detection component includes a cabinet, a CCD camera, a light source lamp, a positioning component, a conveying component and a lighting component. The cabinet is fixedly connected to the frame, the CCD camera is detachably connected to the cabinet and is located inside the cabinet, the light source lamp is detachably connected to the frame and is located around the CCD camera, the positioning component is connected to the frame, the conveying component is connected to the frame, and the lighting component is connected to the frame.

2. The notebook LCD defect detection device according to claim 1, characterized in that: The conveying component includes a belt conveyor, a positioning bracket, a positioning wheel and a placement plate. The belt conveyor is connected to the frame and is located in front of the CCD camera. There are two positioning brackets, which are fixedly connected to the frame respectively and arranged opposite to each other. A plurality of positioning wheels are rotatably connected to the two positioning brackets respectively. The placement plate is placed on the belt conveyor.

3. The notebook LCD defect detection device according to claim 2, characterized in that: The positioning component comprises a positioning cylinder and a positioning plate. The positioning cylinder is detachably connected to the frame and is located between the CCD camera and the belt conveyor. The positioning plate is fixedly connected to the output end of the positioning cylinder.

4. The notebook LCD defect detection device according to claim 3, characterized in that: The positioning component also includes a telescopic cylinder, a mounting block and a rubber-coated roller. The telescopic cylinder is detachably connected to the frame and is located on a side of the frame away from the positioning cylinder; the mounting block is fixedly connected to the output end of the telescopic cylinder; the rubber-coated roller is rotatably connected to the mounting block and is located on a side of the mounting block close to the positioning plate.

5. The notebook LCD defect detection device as claimed in claim 3, characterized in that: The lighting component includes a supporting plate, a rotating base, a lighting cylinder and a knocking rod, wherein the supporting plate is detachably connected to the frame and is located on a side of the frame close to the positioning cylinder; the rotating base is fixedly connected to the supporting plate and is located on the top of the supporting plate; the knocking rod is rotatably connected to the rotating base; the lighting cylinder is fixedly connected to the supporting plate, and the output end of the lighting cylinder is connected to the knocking rod.

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