Liquid crystal panel arc edge detection device

Abstract

The invention provides a liquid crystal panel arc edge detection device which comprises a detection support, a conveying linear module is arranged below the detection support, a panel carrying table is arranged on the conveying linear module, and the conveying linear module can drive the panel carrying table to penetrate through the detection support; a mounting position support is arranged on the detection support, and a low-angle camera unit and a high-angle camera unit are arranged on the mounting position support; when the panel carrying table is located under the detection support, the lens of the low-angle camera unit and the lens of the high-angle camera unit face the panel carrying table. According to the invention, the mounting positions with different angles are provided through the mounting position bracket, so that the multi-angle detection of the arc edge of the liquid crystal panel is realized; one detection support can adapt to installation of one or more installation position supports, the structure is compact, and the device complexity and cost are low; and the detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of AOI automatic optical inspection, and in particular to a liquid crystal panel arc edge detection device. Background Art

[0002] With the continuous development of the smartphone market, breaking the homogeneity of products has become the goal pursued by major manufacturers. In this context, 2.5D curved screen phones have gradually emerged and become a new hot spot in the smartphone field. Compared with traditional screens, curved screens have many significant advantages, such as better elasticity, less prone to damage, more personalized appearance, more convenient operation for large-screen mobile phones, more in line with the curvature of the human retina, and can improve sensory experience.

[0003] With the popularity of curved screen mobile phones, the problem of defect detection of curved edges of LCD panels has become increasingly prominent and has become a common technical problem faced by the industry. In traditional operations, detection mainly relies on manual work, which is time-consuming and labor-intensive, and inefficient; the results are highly subjective and easily affected by factors such as people's emotions, vision, ambient light, and different human eye judgment standards, making it difficult to ensure detection accuracy and reliability.

[0004] In the field of LCD panel inspection, AOI technology plays an important role in improving inspection efficiency and accuracy. However, the curved edge design of LCD panels requires multi-angle inspection to ensure full coverage. Traditional 2D AOI technology can only obtain images from a single angle, and it is difficult to fully inspect the curved edge area of ​​​​the LCD panel. Although this problem can be solved by increasing the number of AOI inspection equipment and the installation angle, it also brings higher equipment costs and more complex pipeline design, which makes the inspection time longer and inefficient. Summary of the invention

[0005] The technical problem to be solved by the present invention is: how to realize multi-angle detection of the arc edge of a liquid crystal panel and improve the detection efficiency.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: The present invention provides an arc edge detection device for a liquid crystal panel, comprising a detection bracket, a conveying linear module is provided below the detection bracket, a panel carrier is provided on the conveying linear module, and the conveying linear module can drive the panel carrier to pass through the detection bracket; a mounting position bracket is provided on the detection bracket, and a low-angle camera unit and a high-angle camera unit are provided on the mounting position bracket; when the panel carrier is located directly below the detection bracket, the lens of the low-angle camera unit and the lens of the high-angle camera unit are both facing the panel carrier.

[0007] The beneficial effects of the present invention are: By adopting the present invention, mounting positions at different angles are provided by the mounting position bracket, thereby realizing multi-angle detection of the arc edge of the liquid crystal panel; one detection bracket can adapt to the installation of one or more mounting position brackets, with a compact structure, low device complexity and cost; the liquid crystal panel is moved by the panel carrier, and when the panel carrier moves to the bottom of the detection bracket, the low-angle camera unit and the high-angle camera unit can simultaneously capture high and low-angle images of the arc edge of the liquid crystal panel, thereby reducing the number of times required for image capture of all arc edges of the liquid crystal panel and improving detection efficiency.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, there are at least two mounting brackets, which are respectively located on both sides of the running direction of the conveying linear module; a low-angle camera unit is provided on one side of one of the mounting brackets, and a high-angle camera unit is provided on the same side of the other mounting bracket.

[0010] It is convenient to simultaneously detect the low-angle image of the A side of the LCD panel and the high-angle image of the opposite B side; the two camera units are located on the same side of the two mounting brackets, the difference in the detection position is small, and the detection consistency and accuracy are high.

[0011] Furthermore, there are two mounting brackets, one of which is connected to one side of the detection bracket, and the other mounting bracket is connected to the other side of the detection bracket.

[0012] The two mounting brackets are staggered to avoid structural interference and facilitate installation; at the same time, the forces on both sides of the detection bracket are symmetrical and the stability is good.

[0013] Furthermore, a horizontal linear module is provided on the detection bracket, the running direction of the horizontal linear module is perpendicular to the running direction of the conveying linear module, and the moving end of the horizontal linear module is connected to the mounting bracket.

[0014] The horizontal linear module can drive the mounting bracket to move. During inspection, the mounting bracket is close to the panel stage, which makes it easier for the camera unit to align with the arc edge of the LCD panel and improve the inspection accuracy. After inspection, the mounting bracket leaves the operating area of ​​the panel stage to avoid structural interference.

[0015] Furthermore, a low-angle camera unit is provided on one side of the mounting bracket, and a high-angle camera unit is provided on the other side.

[0016] It is convenient to detect the high and low angle images of the same arc edge of the LCD panel at the same time; combined with the design of two mounting brackets, the high and low angle images of two arc edges can be detected at one time. Only two detections or two devices are needed to complete the detection of 4 arc edges, which improves the detection efficiency and saves the device cost.

[0017] Furthermore, a backlight source bracket is also provided on the mounting bracket, the lower end of the backlight source bracket is lower than the panel carrier and extends toward the conveying linear module, and a background light source is provided on the backlight source bracket.

[0018] It is convenient to provide background light for the camera unit to improve detection accuracy.

[0019] Furthermore, an extension bar is provided at the lower end of the backlight bracket, which is arranged perpendicular to the backlight bracket. Two background light sources are provided on the extension bar, one of which is located below the low-angle camera unit, and the other is located below the high-angle camera unit.

[0020] It is convenient to arrange background light sources for the low-angle camera unit and the high-angle camera unit respectively, thereby improving detection accuracy.

[0021] Furthermore, the mounting bracket is provided with a plurality of mounting holes, and the plurality of mounting holes are distributed along an arc shape; the low-angle camera unit and the high-angle camera unit are respectively provided with arc-shaped mounting grooves, and the curvature of the mounting grooves is the same as the curvature of the distribution profile of the mounting holes; fasteners are passed through the mounting grooves and the mounting holes, so as to fix the low-angle camera unit or the high-angle camera unit to the mounting bracket.

[0022] Through the cooperation of the mounting through slot and the mounting hole, the camera unit mounting angle can be continuously adjusted, which is convenient for adapting to the detection needs of various liquid crystal panels and has good adaptability.

[0023] Furthermore, the mounting bracket is also provided with an arc-shaped slide groove, the center of the arc-shaped slide groove coincides with the center of the distribution contour of the mounting hole, and the low-angle camera unit and the high-angle camera unit are both slidably connected to the arc-shaped slide groove.

[0024] The stability of the camera unit is improved; at the same time, when adjusting the angle, the camera unit is prevented from falling and being damaged, thereby improving safety.

[0025] Furthermore, the low-angle camera unit and the high-angle camera unit both include a camera mounting bracket, the camera mounting bracket is provided with a plane adjustment linear module and a point light bracket, the plane adjustment linear module is provided with an AOI camera, the point light bracket is located on both sides of the AOI camera, and the point light bracket is provided with a point light source; the camera mounting bracket is attached to the mounting position bracket, and the mounting groove is located on the camera mounting bracket.

[0026] The installation position of the AOI camera can be adjusted by plane-adjusting the linear module to ensure that the camera can be aligned with the arc edge of the LCD panel. The distance is adjustable, which has good flexibility and improves the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention.

[0028] Figure 2 This is a view of the present invention perpendicular to the running direction of the conveying linear module.

[0029] Figure 3 This is a view of the present invention along the running direction of the conveying linear module.

[0030] Figure 4 Schematic diagram of the structure of high and low angle camera units.

[0031] In the accompanying drawings, the technical features represented by the reference numerals are as follows: 1-Detection bracket; 2-Conveying linear module; 3-Panel carrier; 4-Mounting position bracket; 5-Low-angle camera unit; 6-High-angle camera unit; 7-Horizontal linear module; 8-Backlight bracket; 9-Background light source; 10-Extension bar; 11-Mounting hole; 12-Mounting through slot; 13-Arc slide slot; 14-Camera mounting bracket; 15-Plane adjustment linear module; 16-AOI camera; 17-Point light bracket; 18-Point light source. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] The present invention refers to Figure 1-4 .

[0034] The present invention provides an arc edge detection device for a liquid crystal panel, comprising a detection bracket 1, a conveying linear module 2 is provided below the detection bracket 1, a panel carrier 3 is provided on the conveying linear module 2, and the conveying linear module 2 can drive the panel carrier 3 to pass through the detection bracket 1; a mounting position bracket 4 is provided on the detection bracket 1, and a low-angle camera unit 5 and a high-angle camera unit 6 are provided on the mounting position bracket 4; when the panel carrier 3 is located directly below the detection bracket 1, the lens of the low-angle camera unit 5 and the lens of the high-angle camera unit 6 are both facing the panel carrier 3.

[0035] principle: The arc edge detection device of the liquid crystal panel is used to collect the arc edge image of the liquid crystal panel; the subsequent defect recognition process can be completed by computer software, which has nothing to do with the technical problem of the present invention. The low-angle camera unit 5 is opposite to the high-angle camera unit 6, and is named according to the different installation angles. The concept is not related to the installation angle and is collectively referred to as the camera unit. The linear module is a prior art, and the conveying linear module 2 can use a linear motor.

[0036] During operation, the LCD panel is placed on the panel carrier 3, and the conveying linear module 2 drives the panel carrier 3 to move in a straight line. When the panel carrier 3 moves to directly below the detection bracket 1, the low-angle camera unit 5 and the high-angle camera unit 6 can simultaneously or successively capture high and low angle images of the LCD panel, thereby realizing multi-angle detection of the arc edge of the LCD panel.

[0037] The low-angle camera unit 5 and the high-angle camera unit 6 are arranged in the following manners, but not limited to: 1. The low-angle camera unit 5 and the high-angle camera unit 6 are located on both sides of the running direction of the conveying linear module 2 and are fixed on two mounting brackets 4. When the low-angle camera unit 5 collects the low-angle image of the A side of the liquid crystal panel, the high-angle camera unit 6 simultaneously collects the high-angle image of the B side of the liquid crystal panel, and the A side is opposite to the B side. 2. The low-angle camera unit 5 and the high-angle camera unit 6 are arranged along the running direction of the conveying linear module 2 and are fixed on both sides of the same mounting bracket 4. When the low-angle camera unit 5 collects the low-angle image of the A side of the liquid crystal panel, the high-angle camera unit 6 collects the high-angle image of the A side of the liquid crystal panel simultaneously or subsequently. When only one low-angle camera unit 5 and one high-angle camera unit 6 are set, the high and low-angle images of the four sides of the liquid crystal panel can be collected by detecting four times or setting four devices to detect once, without detecting eight times, thereby improving the detection efficiency.

[0038] By adopting the present invention, mounting positions at different angles are provided by the mounting position bracket 4, thereby realizing multi-angle detection of the arc edge of the liquid crystal panel; one detection bracket 1 can adapt to the installation of one or more mounting position brackets 4, with a compact structure, low device complexity and cost; the liquid crystal panel is moved by the panel carrier 3, and when the panel carrier 3 moves to the bottom of the detection bracket 1, the low-angle camera unit 5 and the high-angle camera unit 6 can simultaneously capture high and low angle images of the arc edge of the liquid crystal panel, thereby reducing the number of times required to capture images of all the arc edges of the liquid crystal panel and improving the detection efficiency.

[0039] Furthermore, there are at least two mounting brackets 4, which are respectively located on both sides of the running direction of the conveying linear module 2; a low-angle camera unit 5 is provided on one side of one mounting bracket 4, and a high-angle camera unit 6 is provided on the same side of the other mounting bracket 4.

[0040] It is convenient to simultaneously detect the low-angle image of the A side of the liquid crystal panel and the high-angle image of the opposite B side; the two camera units are located on the same side of the two mounting brackets 4, the difference in the detection positions is small, and the detection consistency and accuracy are high.

[0041] Furthermore, there are two mounting brackets 4 , one of which is connected to one side of the detection bracket 1 , and the other mounting bracket 4 is connected to the other side of the detection bracket 1 .

[0042] The two mounting brackets 4 are staggered to avoid structural interference and facilitate installation; at the same time, the forces on both sides of the detection bracket 1 are symmetrical and have good stability.

[0043] Furthermore, the detection bracket 1 is provided with a horizontal linear module 7 , the running direction of the horizontal linear module 7 is perpendicular to the running direction of the conveying linear module 2 , and the moving end of the horizontal linear module 7 is connected to the mounting bracket 4 .

[0044] Preferably, the detection bracket 1 is a gantry, the horizontal linear module 7 is located on the top beam of the gantry, and the conveying linear module 2 is located between two columns of the gantry. The horizontal linear module 7 can adopt a linear motor, a lead screw pair, etc.

[0045] The horizontal linear module 7 can drive the mounting bracket 4 to move. During detection, the mounting bracket 4 is close to the panel carrier 3, which makes it easy to align the camera unit with the arc edge of the liquid crystal panel and improve the detection accuracy. After detection, the mounting bracket 4 leaves the operating area of ​​the panel carrier 3 to avoid structural interference.

[0046] Furthermore, a low-angle camera unit 5 is provided on one side of the mounting bracket 4, and a high-angle camera unit 6 is provided on the other side.

[0047] It is convenient to simultaneously detect the high and low angle images of the same arc edge of the liquid crystal panel; combined with the design of two mounting brackets 4, the high and low angle images of two arc edges can be detected at one time, and only two detections or two devices are needed to complete the detection of four arc edges, thereby improving the detection efficiency and saving the device cost.

[0048] Furthermore, a backlight bracket 8 is also provided on the mounting bracket 4 , the lower end of the backlight bracket 8 is lower than the panel carrier 3 and extends toward the conveying linear module 2 , and a background light source 9 is provided on the backlight bracket 8 .

[0049] It is convenient to provide background light for the camera unit to improve detection accuracy.

[0050] Furthermore, an extension bar 10 is provided at the lower end of the backlight bracket 8, and the extension bar 10 is arranged perpendicular to the backlight bracket 8. Two background light sources 9 are provided on the extension bar 10, one of the background light sources 9 is located below the low-angle camera unit 5, and the other background light source 9 is located below the high-angle camera unit 6.

[0051] It is convenient to arrange background light sources 9 for the low-angle camera unit 5 and the high-angle camera unit 6 respectively, so as to improve the detection accuracy.

[0052] Furthermore, the mounting bracket 4 is provided with a plurality of mounting holes 11, and the plurality of mounting holes 11 are distributed along an arc shape; the low-angle camera unit 5 and the high-angle camera unit 6 are respectively provided with arc-shaped mounting grooves 12, and the curvature of the mounting grooves 12 is the same as the curvature of the distribution profile of the mounting holes 11; fasteners are passed through the mounting grooves 12 and the mounting holes 11, so as to fix the low-angle camera unit 5 or the high-angle camera unit 6 on the mounting bracket 4.

[0053] Note: The center of the distribution outline of the mounting holes 11 and the center of the mounting slot 12 can be set near the panel carrier 3, that is, the panel carrier 3 is located on the inner arc side of the mounting slot 12. Preferably, the fastener is a bolt.

[0054] Through the cooperation between the mounting through slot 12 and the mounting hole 11, the mounting angle of the camera unit can be continuously adjusted, which is convenient for adapting to the detection needs of various liquid crystal panels and has good adaptability.

[0055] Furthermore, an arc-shaped slide groove 13 is also provided on the mounting bracket 4 , the center of the arc-shaped slide groove 13 coincides with the center of the distribution contour of the mounting hole 11 , and the low-angle camera unit 5 and the high-angle camera unit 6 are both slidably connected to the arc-shaped slide groove 13 .

[0056] Preferably, the arc-shaped slide groove 13 is located on the inner arc side of the distribution profile of the mounting hole 11. When the camera unit is fixed, the span of the fastener is large and the stability is good.

[0057] Preferably, the mounting bracket 4 is also provided with an angle scale, which is located on the outer arc side of the distribution profile of the mounting hole 11, and can be used to measure the angle of the camera unit relative to the horizontal plane, so as to facilitate identification of the installation angle of the camera unit and improve the accuracy of the installation angle.

[0058] The stability of the camera unit is improved; at the same time, when adjusting the angle, the camera unit is prevented from falling and being damaged, thereby improving safety.

[0059] Furthermore, the low-angle camera unit 5 and the high-angle camera unit 6 both include a camera mounting bracket 14, on which a plane adjustment linear module 15 and a point light bracket 17 are provided, on which an AOI camera 16 is provided, the point light bracket 17 is located on both sides of the AOI camera 16, and on which a point light source 18 is provided; the camera mounting bracket 14 is attached to the mounting position bracket 4, and the mounting through groove 12 is located on the camera mounting bracket 14.

[0060] Preferably, the point light bracket 17 is a slide rail slider structure. It is convenient to adjust the distance between the point light source 18 and the AOI camera 16, so that the point light source 18 can accurately fill the focus of the AOI camera 16, thereby improving the detection accuracy. The plane adjustment linear module 15 is a superposition of two linear modules. Preferably, the plane adjustment linear module 15 includes two lead screw pairs, wherein the fixed end of one lead screw pair is connected to the camera mounting bracket 14, the movable end is connected to the fixed end of the other lead screw pair, and the movable end of the other lead screw pair is connected to the AOI camera 16; one of the lead screw pairs is arranged along the detection direction of the AOI camera 16, and the other lead screw pair is arranged perpendicular to the detection direction of the AOI camera 16. To avoid the adjustment of the plane adjustment linear module 15 affecting the detection direction of the AOI camera 16, the installation direction of the AOI camera 16 is stable.

[0061] By adjusting the linear module 15 in a plane, the installation position of the AOI camera 16 can be adjusted to ensure that the camera can be aligned with the arc edge of the liquid crystal panel, and the distance is adjustable, the flexibility is good, and the detection accuracy is improved.

[0062] In the description of the present invention, it should be understood that if there are descriptive terms indicating orientation, direction or positional relationship, such as “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of understanding the present invention and simplifying the description, and does not indicate or imply that the referred part, element or whole must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0063] In addition, if there are order description terms, such as "first", "second", etc., their purpose in this specification is to facilitate understanding or simplify description. For example, in order to distinguish multiple technical features of the same type or function, but they have to be mentioned separately, this specification may use prefix or suffix order description terms to distinguish them. Therefore, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0064] In the present invention, if the terms describing the relative functional relationship of structures are used, such as "install", "connect", "connect", "fix", etc., they should be understood in a broad sense unless otherwise clearly specified and limited. For example, "install", "connect", "connect", etc. can be a fixed connection, a detachable connection, or an integrated one; can be a mechanical connection or an electrical connection; can be a direct connection or an indirect connection through an intermediate medium, can be the internal connection of two elements or the interaction relationship between two elements; "fix" can be an integrated fixation or a detachable fixation through fasteners; can be a direct fixation or a fixation through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above-mentioned descriptive terms in the present invention can be understood according to the specific circumstances, the context, the coherence of the context, etc.

[0065] In the present invention, if there are descriptive terms with subsidiary or connecting meanings, for example, a first feature is "on" or "below" a second feature, unless otherwise clearly specified and limited, it should not be interpreted in a restrictive manner. For example, "on" or "below" can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above descriptive terms in the present invention can be understood according to the specific circumstances, the context, the coherence of the context, etc.

[0066] Furthermore, the first feature being “above”, “above”, and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being “below”, “below”, and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments, examples and features of the different embodiments and examples described in this specification without contradiction, and these combinations or combinations shall all fall within the scope summarized by the present invention.

[0068] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments made by a person skilled in the art within the scope of information available from public channels and in combination with the technical inspiration provided by the present application documents are still within the scope of protection of the present application.

Claims

1. A device for detecting curved edges of liquid crystal panels, characterized in that: The invention comprises a detection bracket (1), wherein a conveying linear module (2) is provided below the detection bracket (1), a panel carrier (3) is provided on the conveying linear module (2), and the conveying linear module (2) can drive the panel carrier (3) to pass through the detection bracket (1); a mounting bracket (4) is provided on the detection bracket (1), and a low-angle camera unit (5) and a high-angle camera unit (6) are provided on the mounting bracket (4); when the panel carrier (3) is located directly below the detection bracket (1), the lens of the low-angle camera unit (5) and the lens of the high-angle camera unit (6) are both facing the panel carrier (3).

2. The device for detecting curved edges of liquid crystal panels according to claim 1, characterized in that: There are at least two mounting brackets (4), and the two mounting brackets (4) are respectively located on both sides of the running direction of the conveying linear module (2); a low-angle camera unit (5) is provided on one side of one of the mounting brackets (4), and a high-angle camera unit (6) is provided on the same side of the other mounting bracket (4).

3. The device for detecting curved edges of liquid crystal panels according to claim 2, characterized in that: There are two mounting brackets (4), one of which is connected to one side of the detection bracket (1), and the other mounting bracket (4) is connected to the other side of the detection bracket (1).

4. The device for detecting curved edges of liquid crystal panels according to claim 3, characterized in that: The detection bracket (1) is provided with a horizontal linear module (7), the running direction of the horizontal linear module (7) is perpendicular to the running direction of the conveying linear module (2), and the moving end of the horizontal linear module (7) is connected to the mounting bracket (4).

5. The device for detecting curved edges of liquid crystal panels according to any one of claims 1 to 4, characterized in that: A low-angle camera unit (5) is provided on one side of the mounting bracket (4), and a high-angle camera unit (6) is provided on the other side.

6. The device for detecting curved edges of liquid crystal panels according to claim 5, characterized in that: The mounting bracket (4) is also provided with a backlight bracket (8), the lower end of the backlight bracket (8) is lower than the panel carrier (3) and extends toward the conveying linear module (2), and the backlight bracket (8) is provided with a background light source (9).

7. The device for detecting curved edges of liquid crystal panels according to claim 6, characterized in that: An extension bar (10) is also provided at the lower end of the backlight source bracket (8), and the extension bar (10) is arranged perpendicular to the backlight source bracket (8). Two background light sources (9) are provided on the extension bar (10), one of the background light sources (9) is located below the low-angle camera unit (5), and the other background light source (9) is located below the high-angle camera unit (6).

8. The device for detecting curved edges of liquid crystal panels according to claim 1, characterized in that: The mounting bracket (4) is provided with a plurality of mounting holes (11), and the plurality of mounting holes (11) are distributed along an arc shape; the low-angle camera unit (5) and the high-angle camera unit (6) are respectively provided with arc-shaped mounting through grooves (12), and the curvature of the mounting through grooves (12) is the same as the curvature of the distribution profile of the mounting holes (11); and fasteners are passed through the mounting through grooves (12) and the mounting holes (11), thereby fixing the low-angle camera unit (5) or the high-angle camera unit (6) on the mounting bracket (4).

9. The device for detecting curved edges of liquid crystal panels according to claim 8, characterized in that: The mounting bracket (4) is also provided with an arc-shaped slide groove (13), the center of the arc-shaped slide groove (13) coincides with the center of the distribution profile of the mounting hole (11), and the low-angle camera unit (5) and the high-angle camera unit (6) are both slidably connected to the arc-shaped slide groove (13).

10. The device for detecting curved edges of liquid crystal panels according to claim 9, characterized in that: The low-angle camera unit (5) and the high-angle camera unit (6) both comprise a camera mounting bracket (14), the camera mounting bracket (14) being provided with a plane adjustment linear module (15) and a spot light bracket (17), the plane adjustment linear module (15) being provided with an AOI camera (16), the spot light bracket (17) being located on both sides of the AOI camera (16), and the spot light bracket (17) being provided with a point light source (18); the camera mounting bracket (14) being attached to the mounting position bracket (4), and the mounting through groove (12) being located on the camera mounting bracket (14).

Images