Quality detection device of display and detection method thereof

Abstract

The invention discloses a display quality detection device and a detection method thereof, and belongs to the technical field of display detection equipment, the display quality detection device comprises a trapezoidal support, the trapezoidal support is slidably provided with a detection mechanism, the detection mechanism comprises a rectangular mounting frame and a trapezoidal plate, the rectangular mounting frame is rotatably connected with the trapezoidal plate, and a dust removal roller is rotatably arranged in the rectangular mounting frame; a gear is fixedly connected to the dust removal roller, a visual detection mechanism is further fixedly arranged on the rectangular mounting frame, a clamping mechanism is arranged in the trapezoidal support and comprises a bottom plate, a first clamping plate and a second clamping plate are slidably arranged on the bottom plate, and the first clamping plate and the second clamping plate are both connected with the bottom plate through first springs; rectangular check blocks are fixedly arranged at one end of the first clamping plate and one end of the second clamping plate, the detection mechanism internally comprises a rotatable dust removal roller and a visual detection mechanism, before detection, the detection mechanism moves above the display screen, dust on the surface of the display is cleaned through the dust removal roller, and detection errors caused by dust adsorption on the surface of the display are avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of display detection equipment, and particularly relates to a quality detection device for a display and a detection method thereof. BACKGROUND

[0002] In recent years, with the continuous progress of science and technology, liquid crystal displays have become an indispensable object in people's lives. However, in the process of manufacturing liquid crystal displays, due to various factors, some defects such as dark corners, bright spots and bad points may occur on the surface, which will affect the quality of the liquid crystal display and reduce the user's experience, so it is very important to detect the surface defects of the liquid crystal display.

[0003] During the detection of the display, there will be some dust or stains on the surface of the display. If the screen is not cleaned before detection, the accuracy of the display surface defect detection will be affected, thereby affecting the product quality. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a quality detection device for a display and a detection method thereof.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] A quality detection device for a display and a detection method thereof, comprising a trapezoidal support, a detection mechanism is slidably arranged on the trapezoidal support, the detection mechanism comprises a rectangular mounting frame and a trapezoidal plate, the rectangular mounting frame and the trapezoidal plate are rotationally connected, a dust removal roller is rotationally arranged in the rectangular mounting frame, a gear is fixedly connected to the dust removal roller, and a visual detection mechanism is fixedly arranged on the rectangular mounting frame.

[0007] A clamping mechanism is arranged in the trapezoidal support, the clamping mechanism comprises a bottom plate, a first clamping plate and a second clamping plate are slidably arranged on the bottom plate, the first clamping plate and the second clamping plate are connected to the bottom plate through first springs, the angle between the first clamping plate, the second clamping plate and the bottom plate is adjustable, and a rectangular stop block is fixedly arranged on one end of the first clamping plate and the second clamping plate.

[0008] A plurality of adjusting mechanisms are arranged on both sides of the bottom plate, the adjusting mechanism comprises a first telescopic rod, the first telescopic rod is fixedly connected to the bottom plate, a cylindrical rod is fixedly arranged at the top end of the first telescopic rod, a second spring is arranged outside the first telescopic rod, a circular stop piece is fixedly arranged at the bottom end of the cylindrical rod, the circular stop piece is fixedly connected to the second spring, and a sliding rod is fixedly arranged between the cylindrical rods.

[0009] A flat plate is slidably arranged on the trapezoidal support, the flat plate is rotationally connected with a bearing plate, and a third spring is arranged between the flat plate and the bearing plate.

[0010] Further, the number of trapezoidal supports is two, a threaded rod is rotatably arranged on each of the two trapezoidal supports, and a limiting rod is fixedly arranged, the detection mechanism further comprises two connecting pieces, one of which is in threaded cooperation with the threaded rod, and the other is in sliding connection with the limiting rod, a second motor is fixedly arranged on the trapezoidal plate, and the output end of the second motor is connected with the rectangular mounting frame.

[0011] Further, one end of the dust removal roller passes through one end of the rectangular mounting frame, passes through a rotating shaft connected with a gear, and the dust removal roller and the visual detection mechanism are located on opposite sides of the rectangular mounting frame.

[0012] Further, a sliding groove is formed in the bottom plate, support rods are slidably arranged at both ends of the sliding groove, the support rods at both ends are connected with both ends of the sliding groove through first springs, and the support rods on both sides are rotatably connected with the first clamping plate and the second clamping plate.

[0013] Further, the circular baffle is located above the second spring, the second spring is in a compressed state, the length of the sliding rod is greater than the distance between the two cylindrical rods, and limiting blocks are fixedly arranged at both ends of the sliding rod, and the first clamping plate and the second clamping plate are located above the plurality of sliding rods.

[0014] Further, one end of each of the first clamping plate and the second clamping plate is fixedly provided with an L-shaped rod, and one end of the L-shaped rod is fixedly connected with the rectangular block.

[0015] Further, limiting grooves are formed in the two trapezoidal supports, sliding rods are slidably arranged in the two limiting grooves, and a flat plate is fixedly arranged between the two sliding rods.

[0016] Further, a rectangular baffle is fixedly arranged on the bearing plate.

[0017] Further, a plurality of second telescopic rods are rotatably arranged on the flat plate, top ends of the plurality of second telescopic rods are rotatably connected with the bearing plate, and third springs are sleeved on the plurality of second telescopic rods.

[0018] The detection method of the above device comprises the following steps:

[0019] S1: The display screen is clamped between the first clamping plate and the second clamping plate, the threaded rod is controlled to rotate, the rectangular mounting frame moves synchronously during the rotation of the threaded rod, the dust removal roller is lowered by the second motor during the downward movement of the rectangular mounting frame, the dust removal roller contacts the display screen during the downward movement of the rectangular mounting frame, the gear is engaged with the rack, and the rotation of the dust removal roller is realized by the engagement transmission of the gear and the rack during the movement, thereby achieving the dust removal treatment of the display surface.

[0020] S2: The rectangular mounting frame moves to the lower position, the second motor is controlled to overturn the dust removal roller, the visual detection mechanism is opposite to the display, the threaded rod is controlled to rotate reversely, and the visual detection mechanism detects the display screen from the bottom end of the display to the top;

[0021] S3: After detection, the rectangular mounting frame continues to move upwards, at this time, the trapezoidal plate gradually moves between the two rectangular blocks and gradually extrudes the two rectangular blocks to the two sides, the first clamping plate and the second clamping plate move to the two sides to loosen the display, and the loosened display falls on the slide rod;

[0022] S4: Before the display falls, the bearing plate is pushed out, and finally the display falls on the bearing plate for collection.

[0023] The beneficial effects of the present application are:

[0024] The detection mechanism is provided, the detection mechanism includes a rotatable dust removal roller and a visual detection mechanism, the detection mechanism moves above the display screen before detection, the rotation of the dust removal roller is realized through the meshing transmission between the gear and the rack, the dust on the surface of the display is cleaned through the dust removal roller, and detection errors caused by the adsorption of dust on the surface of the display are avoided;

[0025] After dust removal, the threaded rod rotates reversely, the dust removal roller and the visual detection mechanism are overturned, the visual detection mechanism is close to the display screen, the display is detected, the trapezoidal plate opens the two rectangular blocks during the continuous movement process, the first clamping plate and the second clamping plate loosen the display, and finally the display falls on the bearing plate for collection;

[0026] The angle of the first clamping plate and the second clamping plate is adjustable, and the slide rod is always in contact with the bottom surface of the first clamping plate and the second clamping plate through the self-adaptive adjustment of the second spring during the adjustment process, so that the display on the bearing plate is prevented from being accumulated too much, and the display on the slide rod is prevented from being difficult to discharge. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 is a structural schematic diagram of the present application Figure I ;

[0029] Figure 2 is an enlarged schematic diagram of the structure of part A of the present application;

[0030] Figure 3is a schematic view of the structure of part B of the present application;

[0031] Figure 4 is a schematic view of the structure of part B of the present application; Figure II ;

[0032] Figure 5 is a schematic view of the structure of part B of the present application; Figure III ;

[0033] Figure 6 is a test diagram of the present application.

[0034] Label explanation in the figure: 1, trapezoidal support; 2, threaded rod; 3, limiting rod; 4, connecting piece; 5, trapezoidal plate; 6, rectangular mounting frame; 7, visual detection mechanism; 8, second motor; 9, dust removal roller; 10, gear; 11, bottom plate; 12, first spring; 13, sliding groove; 14, support rod; 15, first clamping plate; 16, second clamping plate; 17, rack; 18, cylindrical rod; 19, first telescopic rod; 20, second spring; 21, circular baffle; 22, sliding rod; 23, limiting block; 24, L-shaped rod; 25, rectangular block; 26, limiting groove; 27, flat plate; 28, sliding rod; 29, bearing plate; 30, second telescopic rod; 31, third spring; 32, rectangular baffle. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0037] As Figure 1As shown, a quality detection device of a display includes two trapezoidal supports 1, a threaded rod 2 is rotatably arranged at the hypotenuse of each trapezoidal support 1, a limiting rod 3 is fixedly arranged, the threaded rod 2 is driven by a first motor, the first motor is installed in the trapezoidal support 1 and is fixedly connected with the trapezoidal support 1, a detection mechanism is threadedly connected with the threaded rod 2, the detection mechanism includes two connecting pieces 4, one of the connecting pieces 4 is threadedly connected with the threaded rod 2, and the other connecting piece 4 is slidably connected with the limiting rod 3, a trapezoidal plate 5 is fixedly arranged between the two connecting pieces 4, a rectangular mounting frame 6 is rotatably arranged on the trapezoidal plate 5, the rectangular mounting frame 6 is rotatably connected with the trapezoidal plate 5, a second motor 8 is arranged at the rotatable connection, the second motor 8 is fixedly connected with the trapezoidal plate 5, an output end of the second motor 8 is connected with the rectangular mounting frame 6, the rectangular mounting frame 6 is driven to rotate by the second motor 8, a dust removal roller 9 is rotatably arranged on the rectangular mounting frame 6, one end of the dust removal roller 9 penetrates through one end of the rectangular mounting frame 6, and a gear 10 is connected with the one end through a rotating shaft, the gear 10 can drive the dust removal roller 9 to rotate in the rotating process, the surface of the display is rolled and dusted, a visual detection mechanism 7 is fixedly arranged at the end of the rectangular mounting frame 6 opposite to the dust removal roller 9, the visual detection mechanism 7 is specifically a display panel defect detection system based on computer vision, the display panel image is collected, the intelligent algorithm processes the image at the same time in the process of scanning the picture, the defect information of the panel is displayed in real time, whether there is foreign matter, scratch, color difference, convex hull, indentation, pinhole, burr, bright spot and the like on the surface is judged, and it is a relatively mature detection method.

[0038] As shown, Figures 1-2 A clamping mechanism is arranged between the two trapezoidal supports 1, the clamping mechanism includes a bottom plate 11, a sliding groove 13 is formed in the bottom plate 11, support rods 14 are slidably arranged at both ends of the sliding groove 13, the support rods 14 at both ends are connected with both ends of the sliding groove 13 through first springs 12, first clamping plates 15 and second clamping plates 16 are rotatably arranged on the support rods 14 at both sides, a rack 17 is further fixedly arranged at the top end of the second clamping plate 16

[0039] As shown, Figures 3-4As shown, the two sides of the base plate 11 are each provided with four sets of adjusting mechanisms, which include a first telescopic rod 19 fixedly connected with the base plate 11, a cylindrical rod 18 fixedly arranged at the top end of the first telescopic rod 19, a second spring 20 arranged outside the first telescopic rod 19, a circular baffle 21 fixedly arranged at the bottom end of the cylindrical rod 18, and the circular baffle 21 is above and fixedly connected with the second spring 20, and the second spring 20 is in a compressed state, wherein the four sets of adjusting mechanisms are the same in structure, and a slide rod 22 is further fixedly arranged between the two cylindrical rods 18, the length of the slide rod 22 is greater than the distance between the two cylindrical rods 18, and limit blocks 23 are fixedly arranged at the two ends of the slide rod 22, and the first clamping plate 15 and the second clamping plate 16 are above the slide rods 22, and the adjusting mechanism is self-adaptively adjusted through the second spring 20, so that the slide rod 22 is always in contact with the bottom surface of the first clamping plate 15 and the second clamping plate 16,

[0040] The angle of the first clamping plate 15 and the second clamping plate 16 is adjustable, and it should be noted that the angle of rotation between the first clamping plate 15 and the second clamping plate 16 needs to be consistent, and the first clamping plate 15 and the second clamping plate 16 can be driven by motors respectively, and since the second spring 20 is in a compressed state, when the first clamping plate 15 and the second clamping plate 16 are rotated by a certain angle, the second spring 20 will be elongated, and the slide rod 22 will always be in contact with the lower surface of the first clamping plate 15 and the second clamping plate 16, and during detection, the display screen is clamped between the first clamping plate 15 and the second clamping plate 16, and when the first clamping plate 15 and the second clamping plate 16 move to both ends, the display screen will be loosened, and at this time the display screen will be in contact with the slide rods 22 and will slide down to the lower part for collection

[0041] As shown in Figure 4 The one end of the first clamping plate 15 and the second clamping plate 16 is fixedly provided with an L-shaped rod 24, and the one end of the L-shaped rod 24 is fixedly provided with a rectangular block 25, and during the movement of the detection mechanism on the threaded rod 2, the trapezoidal plate 5 thereon will gradually move between the two rectangular blocks 25 and gradually extrude the two rectangular blocks 25 to both sides, and since the two rectangular blocks 25 are fixedly connected with the first clamping plate 15 and the second clamping plate 16 on both sides, the first clamping plate 15 and the second clamping plate 16 also move to both sides at the same time, and the first clamping plate 15 and the second clamping plate 16 will extrude the first spring 12 during the movement, and after the first clamping plate 15 and the second clamping plate 16 move to both sides, the distance between them will be larger, thereby loosening the display, and the loosened display will slide onto the slide rod 22

[0042] As shown in Figures 5-6As shown, the two trapezoidal supports 1 are each provided with a limiting groove 26, the two limiting grooves 26 are each slidably provided with a sliding rod 28, the two sliding rods 28 are fixedly provided with a flat plate 27, the flat plate 27 is rotatably connected with a bearing plate 29, the bearing plate 29 is fixedly provided with a rectangular baffle 32, the flat plate 27 is rotatably provided with a plurality of second telescopic rods 30, the top ends of the plurality of second telescopic rods 30 are rotatably connected with the bearing plate 29, the plurality of second telescopic rods 30 are sleeved with third springs 31, and after detection, the bearing plate 29 is slid outward, so that the display screen is slid onto the bearing plate 29 for collection.

[0043] When detecting, the display screen is clamped between the first clamping plate 15 and the second clamping plate 16, the first clamping plate 15 and the second clamping plate 16 are each provided with a first spring 12 at the bottom end, at this time, the first spring 12 is in a compressed state, the display screen can be clamped, then the threaded rod 2 is controlled to rotate, the rectangular mounting frame 6 moves synchronously during the rotation of the threaded rod 2, during the downward movement of the rectangular mounting frame 6, the dust removal roller 9 is lowered through the second motor 8, as the rectangular mounting frame 6 moves downward, the dust removal roller 9 contacts the display screen, and the gear 10 is engaged with the rack 17, during the movement, the rotation of the dust removal roller 9 is achieved through the engagement transmission of the gear 10 and the rack 17, and the surface of the display is dusted, the rectangular mounting frame 6 moves to the lower position, the dust removal roller 9 is turned over by controlling the second motor 8, so that the visual detection mechanism 7 faces the display, the threaded rod 2 is controlled to rotate in the reverse direction, the visual detection mechanism 7 detects the display screen from the bottom end of the display upward, after the detection is completed, the rectangular mounting frame 6 continues to move upward, at this time, the trapezoidal plate 5 gradually moves between the two rectangular blocks 25, and gradually extrudes the two rectangular blocks 25 to the two sides, the first clamping plate 15 and the second clamping plate 16 move to the two sides to release the display, the display after being released falls on the sliding rod 22, the display in the inclined state will slide downward under the action of gravity,

[0044] Before the display falls, the bearing plate 29 is pushed out, and finally the display falls on the bearing plate 29, after a plurality of displays are stacked on the bearing plate 29, the weight becomes larger, at this time, the third spring 31 and the second telescopic rod 30 are compressed, the inclination angle between the bearing plate 29 and the flat plate 27 changes, at this time, the inclination angle of the first clamping plate 15 and the second clamping plate 16 can be adjusted, so that the display is more easily slid onto the bearing plate 29, while the inclination angle of the first clamping plate 15 and the second clamping plate 16 changes, the elongation of the plurality of second springs 20 will be different, the sliding rod 22 will always be in contact with the bottom surface of the first clamping plate 15 and the second clamping plate 16, when the display falls on the sliding rod 22, the deformation amount of the second spring 20 can be ignored.

[0045] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" 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 present application. In the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A quality inspection device for a display, characterized in that, The system includes a trapezoidal bracket (1), which is slidably equipped with a detection mechanism. The detection mechanism includes a rectangular mounting frame (6) and a trapezoidal plate (5). The rectangular mounting frame (6) and the trapezoidal plate (5) are rotatably connected. A dust removal roller (9) is rotatably provided inside the rectangular mounting frame (6). A gear (10) is fixedly connected to the dust removal roller (9). A visual inspection mechanism (7) is also fixedly provided on the rectangular mounting frame (6). The trapezoidal bracket (1) is provided with a clamping mechanism, which includes a base plate (11). A first clamping plate (15) and a second clamping plate (16) are slidably provided on the base plate (11). The first clamping plate (15) and the second clamping plate (16) are both connected to the base plate (11) through a first spring (12). The angle between the first clamping plate (15) and the second clamping plate (16) and the base plate (11) is adjustable. A rectangular stop block (25) is fixed at one end of the first clamping plate (15) and the second clamping plate (16). The base plate (11) is provided with several adjustment mechanisms on both sides. The adjustment mechanism includes a first telescopic rod (19), which is fixedly connected to the base plate (11). A cylindrical rod (18) is fixedly provided at the top of the first telescopic rod (19). A second spring (20) is provided on the outer sleeve of the first telescopic rod (19). A circular baffle (21) is fixedly provided at the bottom of the cylindrical rod (18). The circular baffle (21) is fixedly connected to the second spring (20). A sliding rod (22) is also fixedly provided between the cylindrical rods (18). A flat plate (27) is slidably provided on the trapezoidal support (1), and a bearing plate (29) is rotatably connected to the flat plate (27). A third spring (31) is provided between the flat plate (27) and the bearing plate (29).

2. The display quality inspection device according to claim 1, characterized in that, The trapezoidal bracket (1) consists of two parts, each with a rotatable threaded rod (2) and a fixed limiting rod (3). The detection mechanism also includes two connecting parts (4), one of which is threadedly engaged with the threaded rod (2), and the other is slidably connected to the limiting rod (3). A second motor (8) is fixedly mounted on the trapezoidal plate (5), and the output end of the second motor (8) is connected to the rectangular mounting frame (6).

3. The display quality inspection device according to claim 2, characterized in that, One end of the dust removal roller (9) passes through one end of the rectangular mounting frame (6), and a gear (10) is connected to the other end via a rotating shaft. The dust removal roller (9) and the vision inspection mechanism (7) are located on opposite sides of the rectangular mounting frame (6).

4. The display quality inspection device according to claim 3, characterized in that, The base plate (11) is provided with a sliding groove (13), and support rods (14) are slidably provided at both ends of the sliding groove (13). The support rods (14) at both ends are connected to the two ends of the sliding groove (13) through a first spring (12). The support rods (14) on both sides are rotatably connected to the first clamping plate (15) and the second clamping plate (16) respectively.

5. The display quality inspection device according to claim 4, characterized in that, The circular baffle (21) is located above the second spring (20), the second spring (20) is in a compressed state, the length of the slide rod (22) is greater than the distance between the two cylindrical rods (18), and the two ends of the slide rod (22) are fixed with limit blocks (23), the first clamping plate (15) and the second clamping plate (16) are located above the slide rods (22).

6. The display quality inspection device according to claim 5, characterized in that, One end of the first clamping plate (15) and the second clamping plate (16) is fixedly provided with an L-shaped rod (24), and one end of the L-shaped rod (24) is fixedly connected to the rectangular stop block (25).

7. A display quality inspection device according to claim 6, characterized in that, Each of the two trapezoidal supports (1) has a limiting groove (26), and each of the two limiting grooves (26) has a sliding rod (28) slidably mounted on it. A flat plate (27) is fixed between the two sliding rods (28).

8. The display quality inspection device according to claim 7, characterized in that, A rectangular baffle (32) is fixedly provided on the bearing plate (29).

9. A display quality inspection device according to claim 8, characterized in that, The plate (27) is rotatably provided with a plurality of second telescopic rods (30), the top ends of the plurality of second telescopic rods (30) are rotatably connected to the bearing plate (29), and a third spring (31) is provided on the outer sleeve of the plurality of second telescopic rods (30).

10. The detection method of the device according to claim 9, characterized in that, Includes the following steps: S1: The display screen is clamped between the first clamping plate (15) and the second clamping plate (16). The threaded rod (2) is controlled to rotate. During the rotation of the threaded rod (2), the rectangular mounting frame (6) moves synchronously. During the downward movement of the rectangular mounting frame (6), the dust removal roller (9) is moved downward by the second motor (8). As the rectangular mounting frame (6) moves downward, the dust removal roller (9) contacts the display screen, and the gear (10) meshes with the rack (17). During the movement, the rotation of the dust removal roller (9) is achieved through the meshing transmission of the gear (10) and the rack (17), and the dust removal treatment is performed on the surface of the display. S2: The rectangular mounting frame (6) is moved to the lower position, and the second motor (8) is controlled to flip the dust removal roller (9) so that the visual inspection mechanism (7) faces the display. The threaded rod (2) is controlled to rotate in the opposite direction, and the visual inspection mechanism (7) inspects the display screen from the bottom to the top. S3: After the test is completed, the rectangular mounting frame (6) continues to move upward. At this time, the trapezoidal plate (5) will gradually move between the two rectangular blocks (25) and gradually squeeze the two rectangular blocks (25) to both sides. The first clamping plate (15) and the second clamping plate (16) move to both sides to release the display. After being released, the display falls on the slide bar (22). S4: Push out the carrier plate (29) before the display falls, and finally the display will fall on the carrier plate (29) for collection.

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