Screen detection device and detection method for display screen production

Abstract

The present invention relates to the field of press detection technology, and in particular to a screen detection device and detection method for display screen production, comprising a base frame, with recessed frames movably installed on both sides of the upper surface of the base frame through a telescopic mechanism, the recessed frames on both sides are symmetrically distributed, two transverse rods are fixedly connected to the inner wall of each recessed frame, and one end of the two transverse rods is commonly fixedly connected to a vertical rod. A screen detection method for display screen production is also proposed. The present invention can directly detect the produced computer display screen products without the need for separate detection of the display panel during the production process. The detection result is more objective for the final product; during the detection, a grid structure is used to support the rear surface of the screen main body to prevent the screen main body from bending during the detection and affecting the pressing force; it can facilitate users to quickly arrange the display screen, and is convenient to use; press detection can be performed on any position of the front surface of the screen main body, and the detection is more comprehensive.

Description

Technical Field

[0001] The present invention relates to the field of pressure detection technology, and in particular to a screen detection device and a detection method for display screen production. Background Art

[0002] The display surface compression test is a method used to evaluate a display's deformation and stability under load. This test is designed to simulate real-world forces applied to the screen, such as finger pressure or mechanical compression, to determine whether the screen will experience significant deformation or damage.

[0003] The computer display screen supports the screen body through the bracket so that the display screen can be placed stably on the desktop.

[0004] Existing testing equipment is difficult to adapt for testing displays with supports. When placed on the test bench, the support causes the screen to tilt, making testing difficult. This often requires custom-made support components to ensure the display's horizontal placement, or the display panel is removed for testing during production. This test result is rather one-sided, merely representing a strength test of the display panel and failing to objectively reflect the display's performance during pressure testing. Therefore, we propose a screen testing device and method for display production to more objectively implement pressure testing of displays. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a screen detection device and detection method for display screen production.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a screen detection device for display screen production, comprising a base frame, recessed frames are movably installed on both sides of the upper surface of the base frame through a telescopic mechanism, the recessed frames on both sides are symmetrically distributed, two transverse rods are fixedly connected to the inner wall of each recessed frame, one end of the two transverse rods is commonly fixedly connected to a vertical rod, and the upper and lower ends of the vertical rods are respectively fixedly connected to the inner surface of the recessed frame, two movable rods are slidably connected to the adjacent sides of the vertical rods on both sides, an adjustment mechanism is provided between the two movable rods on each side, limit blocks are movably installed at the adjacent corners of the upper surfaces of the recessed frames on both sides through an elastic mechanism, and the adjacent corners of the two limit blocks are respectively provided with bevel angles, a detection head is movably installed on the upper surface of the base frame through an XYZ axis servo mechanism, and the detection head is located in front of the recessed frame;

[0007] When arranging the display screen, the rear surface of the screen body is attached to the front surface of the recessed frame, and when the recessed frames on both sides are close to each other, the two limiting blocks are against the front surface of the support;

[0008] After the recessed frames on both sides are close to each other, the movable rods are respectively located above and below the connection between the support and the screen body.

[0009] Preferably, the telescopic mechanism includes a seat fixedly mounted on the rear side of the upper surface of the base frame, a side plate fixedly mounted on the side of the upper surface of the seat, a transverse cylinder and a first guide cylinder fixedly mounted on the outer surface of one side of the side plate, a first guide rod slidably inserted into the port of the first guide cylinder, and one end of the first guide rod and the telescopic end of the transverse cylinder are fixedly connected to the side surface of the recessed frame.

[0010] Preferably, a rear baffle is fixedly mounted on the rear edge of the upper surface of the cushion seat, and the front surface of the rear baffle is movably attached to the rear surface of the recessed frame.

[0011] Preferably, the adjustment mechanism includes a fixed plate fixedly connected to the side surface of the vertical rod, a threaded rod sliding through the upper surface of the fixed plate, and the outer surface fixed sleeve of the threaded rod is provided with two limit sleeves, which are movably attached to the upper and lower surfaces of the fixed plate respectively. The threaded rod threads pass through the inner sides of the two movable rods, and the upper end of the threaded rod is fixedly connected to a polygonal head.

[0012] Preferably, a vertical opening is formed on the side surface of the vertical rod, and the end of the movable rod slides and fits into the inner side of the vertical opening.

[0013] Preferably, the elastic mechanism includes a fixing seat fixedly installed at the corner of the upper surface of the recessed frame, a plurality of compression springs are fixedly connected to the front surface of the fixing seat, the front end of the compression spring is fixedly connected to the rear surface of the limit block, and the side of the limit block slides with the fixing seat in the front-to-back direction.

[0014] Preferably, a convex rail is fixedly connected to an inner wall of one side of the fixing seat, and a sliding opening is opened on one side of the limiting block, and the sliding opening is slidably sleeved on the outer surface of the convex rail.

[0015] Preferably, the XYZ-axis servo mechanism includes a sliding frame slidably installed on the upper surface of the base frame along the front-to-back direction, a longitudinal cylinder and a second guide cylinder are fixedly installed on the front edge of the upper surface of the base frame, a second guide rod is slidably inserted into the rear port of the second guide cylinder, the rear end of the second guide rod and the telescopic end of the longitudinal cylinder are respectively fixedly connected to the front surface of the sliding frame, a horizontal axis servo mechanism is fixedly installed on the rear surface of the sliding frame, a vertical axis servo mechanism is fixedly installed on the movable end of the horizontal axis servo mechanism, a slide is fixedly connected to the movable end of the vertical axis servo mechanism, and the rear surface of the slide is fixedly connected to the front end of the detection head.

[0016] Preferably, slide rails are fixedly installed on both sides of the upper surface of the base frame, slide seats are fixedly installed on both sides of the lower surface of the sliding frame, the slide seats are slidably mounted on the outer surfaces of the slide rails, and wheels are installed at the corners of the lower surface of the base frame.

[0017] A screen detection device method for display screen production is also proposed, which is carried out using the above-mentioned device and includes the following steps:

[0018] S1. The user turns the display screen upside down and moves the display screen to the upper end of the support.

[0019] S2. Place the screen body downward against the front surfaces of the two recessed frames, and keep the screen body as close as possible to the middle of the two recessed frames;

[0020] S3. Control the telescopic mechanisms on both sides to push the recessed frames on both sides toward each other. When the ends of the recessed frames on both sides abut against each other, the screen arrangement is completed by releasing the user.

[0021] S4. Control the XYZ servo mechanism to make the detection head press multiple points on the front surface of the screen body to perform pressure detection.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention can directly test the produced computer display screen products, without the need to conduct separate testing of the display panel during the production process. The test results are targeted at the final product and are more objective;

[0024] 2. The present invention adopts a grid-like structure to support the rear surface of the screen body during testing to prevent the screen body from bending during testing and affecting the pressing force;

[0025] 3. The present invention can facilitate users to quickly arrange the display screen and is easy to use;

[0026] 4. The present invention can perform pressure detection on any position of the front surface of the screen body, and the detection is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a screen detection device for display screen production according to the present invention;

[0028] Figure 2 This is a schematic structural diagram of another viewing angle of a screen detection device for display screen production according to the present invention;

[0029] Figure 3 This is a schematic diagram of a telescopic mechanism of a screen detection device for display screen production according to the present invention;

[0030] Figure 4 This is a schematic diagram of a recessed frame of a screen detection device for display screen production according to the present invention;

[0031] Figure 5 This is a cross-sectional view of a fixing seat of a screen detection device for display screen production according to the present invention;

[0032] Figure 6 This is a cross-sectional view of a recessed frame of a screen detection device for display screen production according to the present invention;

[0033] Figure 7 This is a schematic diagram of an XYZ axis servo mechanism of a screen detection device for display screen production according to the present invention;

[0034] Figure 8 This is a schematic diagram of a screen detection device for display screen production according to the present invention during detection;

[0035] Figure 9 A schematic diagram of a display screen inspected by a screen inspection device and method for display screen production according to the present invention.

[0036] 1. Base frame; 2. Pad; 3. Recessed frame; 4. Vertical rod; 5. Horizontal rod; 6. Movable rod; 7. Vertical opening; 8. Fixed plate; 9. Threaded rod; 10. Limit sleeve; 11. Polygonal head; 12. Fixed seat; 13. Limit block; 14. Bevel angle; 15. Compression spring; 16. Convex rail; 17. Slide; 18. Side plate; 19. Horizontal cylinder; 20. First guide cylinder; 21. First guide rod; 22. Rear baffle; 23. Sliding frame; 24. Longitudinal cylinder; 25. Second guide cylinder; 26. Second guide rod; 27. Horizontal axis servo mechanism; 28. Vertical axis servo mechanism; 29. Slide; 30. Detection head; 31. Slide rail; 32. Slide seat; 33. Wheel; 34. Screen body; 35. Support. DETAILED DESCRIPTION

[0037] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0038] like Figures 1-9 The screen detection device for display screen production shown in the figure includes a base frame 1, and recessed frames 3 are movably installed on both sides of the upper surface of the base frame 1 through a telescopic mechanism. The recessed frames 3 on both sides are symmetrically distributed, and two transverse rods 5 are fixedly connected to the inner wall of each recessed frame 3. One end of the two transverse rods 5 is commonly fixedly connected to a vertical rod 4, and the upper and lower ends of the vertical rod 4 are respectively fixedly connected to the inner surface of the recessed frame 3, and two movable rods 6 are slidably connected to the adjacent sides of the vertical rods 4 on both sides. An adjustment mechanism is provided between the two movable rods 6 on each side, and limit blocks 13 are movably installed at the adjacent corners of the upper surfaces of the recessed frames 3 on both sides through an elastic mechanism, and the adjacent corners of the two limit blocks 13 are respectively provided with bevel angles 14. A detection head 30 is movably installed on the upper surface of the base frame 1 through an XYZ axis servo mechanism, and the detection head 30 is located in front of the recessed frame 3;

[0039] Display screen Figure 8As shown, it includes a screen body 34 and a support 35 fixedly mounted on a surface.

[0040] like Figure 7 As shown, in the arrangement of the display screen, the rear surface of the screen body 34 is attached to the front surface of the recessed frame 3, and after the recessed frames 3 on both sides are close to each other, the two limiting blocks 13 are against the front surface of the support 35;

[0041] After the recessed frames 3 on both sides are close to each other, the movable rods 6 are respectively located above and below the connection between the support 35 and the screen body 34.

[0042] like Figure 3 As shown, the telescopic mechanism includes a seat 2 fixedly mounted to the rear upper surface of the base frame 1. A side plate 18 is fixedly mounted to the side edge of the seat 2's upper surface. A transverse cylinder 19 and a first guide cylinder 20 are fixedly mounted to one outer surface of the side plate 18. A first guide rod 21 is slidably inserted into the end of the first guide cylinder 20. One end of the first guide rod 21 and the telescopic end of the transverse cylinder 19 are fixedly connected to the side surface of the recessed frame 3. When the transverse cylinder 19 extends or retracts, the first guide rod 21 slides relatively along the inner side of the first guide cylinder 20, thereby improving the stability of the recessed frame 3 during lateral movement.

[0043] A rear baffle 22 is fixedly mounted to the rear edge of the upper surface of the support 2. The front surface of the rear baffle 22 is movably attached to the rear surface of the recessed frame 3. The rear baffle 22 provides support. During the press test, the recessed frame 3 is subjected to rearward pressure. The rear baffle 22 enhances the stability of the recessed frame 3 and prevents the recessed frame 3 from moving backward and damaging the transverse cylinder 19.

[0044] like Figure 6 As shown, the adjustment mechanism includes a fixed plate 8 fixedly connected to the side surface of the vertical rod 4, a threaded rod 9 slidingly extending through the upper surface of the fixed plate 8, and two limit sleeves 10 fixedly provided on the outer surface of the threaded rod 9. The two limit sleeves 10 are movably attached to the upper and lower surfaces of the fixed plate 8 respectively. The threaded rod 9 is threadedly extended through the inner sides of the two movable rods 6, and the upper end of the threaded rod 9 is fixedly connected to a polygonal head 11. The polygonal head 11 facilitates the user to rotate the threaded rod 9 with the help of a wrench. The threads on the surface of the threaded rod 9 are symmetrical, and during rotation, the upper and lower movable rods 6 are moved toward or away from each other.

[0045] A vertical slot 7 is formed on the side surface of the vertical rod 4, and the end of the movable rod 6 slides into the inner side of the vertical slot 7. This improves the stability of the movable rod 6 during its up and down movement. At the same time, since this position may be subjected to pressure during the press test, this prevents the movable rod 6 from being displaced by the pressure and causing the threaded rod 9 to bend.

[0046] like Figure 4 、 Figure 5As shown, the elastic mechanism includes a fixed seat 12 fixedly mounted at a corner of the upper surface of the recessed frame 3. Several compression springs 15 are fixedly connected to the front surface of the fixed seat 12. The front ends of the compression springs 15 are fixedly connected to the rear surface of the limit block 13. The side of the limit block 13 slides with the fixed seat 12 in the front-to-back direction. Specifically, the sliding fit uses the following scheme: a convex rail 16 is fixedly connected to the inner wall of one side of the fixed seat 12, and a sliding opening 17 is formed on one side of the limit block 13. The sliding opening 17 slides over the outer surface of the convex rail 16, allowing the limit block 13 to move forward and backward relative to the fixed seat 12.

[0047] like Figure 1 、 Figure 2 、 Figure 7 As shown, the XYZ-axis servo mechanism includes a sliding frame 23 slidably installed on the upper surface of the base frame 1 along the front-to-back direction, a longitudinal cylinder 24 and a second guide cylinder 25 are fixedly installed on the front edge of the upper surface of the base frame 1, and a second guide rod 26 is slidably inserted into the rear port of the second guide cylinder 25. The rear end of the second guide rod 26 and the telescopic end of the longitudinal cylinder 24 are respectively fixedly connected to the front surface of the sliding frame 23. When the longitudinal cylinder 24 is extended and retracted, the second guide rod 26 will slide back and forth relatively to the inner side of the second guide cylinder 25, thereby improving the stability of the sliding frame 23 during movement. A horizontal axis servo mechanism 27 is fixedly installed on the rear surface of the sliding frame 23, and a vertical axis servo mechanism 28 is fixedly installed on the movable end of the horizontal axis servo mechanism 27. The movable end of the vertical axis servo mechanism 28 is fixedly connected to a slide 29, and the rear surface of the slide 29 is fixedly connected to the front end of the detection head 30. The horizontal axis servo mechanism 27 and the vertical axis servo mechanism 28 are both common mechanisms used to control the flexible displacement of the detection head 30. Combined with the design of the pad 2, it ensures that the detection head 30 can contact any position on the front surface of the screen body 34.

[0048] Slide rails 31 are fixedly mounted on both sides of the upper surface of the chassis 1, and slide seats 32 are fixedly mounted on both sides of the lower surface of the sliding frame 23. The slide seats 32 slide over the outer surfaces of the slide rails 31. As the sliding frame 23 moves forward and backward, the slide seats 32 simultaneously slide along the surface of the slide rails 31, improving the stability of the sliding frame 23 during movement. Wheels 33 are mounted on the corners of the lower surface of the chassis 1. The wheels 33 facilitate the movement of the entire device.

[0049] The user turns the display screen upside down and holds the display screen at the upper end of the support 35. Then, the screen body 34 is placed downwardly against the front surfaces of the two recessed frames 3, and the screen body 34 is kept as close to the middle position of the two recessed frames 3 as possible. The horizontal cylinder 19 is controlled to extend so that the recessed frames 3 on both sides move closer to each other. During this process, when the limit block 13 moves horizontally, the bevel angle 14 will contact the front surface of the support 35 and push each other. The limit block 13 will move forward and squeeze the compression spring 15. When the ends of the recessed frames 3 on both sides abut against each other, they stop. The limit block 13 will abut against the front surface of the support 35, and the recessed frame 3 will support the rear surface of the screen body 34. The combined effect keeps the display screen stable. At this time, let go to complete the arrangement of the display screen. By controlling the extension of the longitudinal cylinder 24, the sliding frame 23 is moved backward, and the detection head 30 will apply pressure to the front surface of the screen body 34 to perform a press detection. Since the rear surface of the screen body 34 is supported by the grid structure composed of the recessed frame 3, the horizontal rod 5, the vertical rod 4 and the movable rod 6, the screen body 34 can be better kept from being bent as a whole during the press detection, thereby affecting the force applied by the detection head 30. The user can understand the detection effect in real time by observing whether the screen body 34 is broken. By controlling the operation of the horizontal axis servo mechanism 27, the lateral displacement of the detection head 30 can be achieved, and by controlling the operation of the vertical axis servo mechanism 28, the up and down movement of the detection head 30 can be achieved. Therefore, through regulation, the detection head 30 can realize a blind-angle press detection at various positions on the front surface of the screen body 34, and the detection is more comprehensive.

[0050] The user rotates the polygonal head 11 to rotate the threaded rod 9, thereby controlling the upper and lower movable rods 6 to move closer to or away from each other, so that when the two recessed frames 3 are approaching, the ends of the two movable rods 6 will not contact the connection between the screen body 34 and the support 35.

[0051] A method for detecting a screen for display screen production is also proposed, which is carried out using the above device and includes the following steps:

[0052] S1. The user turns the display screen upside down and moves the handheld display screen to the upper end position of the support 35;

[0053] S2. Place the screen body 34 downward against the front surfaces of the two recessed frames 3, and keep the screen body 34 as close as possible to the middle of the two recessed frames 3;

[0054] S3, control the telescopic mechanisms on both sides to push the recessed frames 3 on both sides to move closer to each other, and stop when the ends of the recessed frames 3 on both sides abut against each other, then release the hands to complete the arrangement of the display screen;

[0055] S4. Control the XYZ servo mechanism to make the detection head 30 press multiple points on the front surface of the screen body 34 to perform pressure detection.

[0056] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the invention as claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A screen detection device for display screen production, comprising a base frame (1), characterized in that: The upper surface of the base frame (1) is movably mounted with recessed frames (3) on both sides through a telescopic mechanism. The recessed frames (3) on both sides are symmetrically distributed. Two transverse rods (5) are fixedly connected to the inner wall of each recessed frame (3). One end of the two transverse rods (5) is fixedly connected to a vertical rod (4), and the upper and lower ends of the vertical rod (4) are fixedly connected to the inner surface of the recessed frame (3). Two movable rods (6) are slidably connected to the adjacent sides of the vertical rods (4) on both sides. An adjustment mechanism is provided between the two movable rods (6) on each side. The adjacent corners of the upper surfaces of the recessed frames (3) on both sides are movably mounted with limit blocks (13) through an elastic mechanism. The adjacent corners of the two limit blocks (13) are respectively provided with beveled corners (14). The upper surface of the base frame (1) is movably mounted with a detection head (30) through an XYZ axis servo mechanism, and the detection head (30) is located in front of the recessed frame (3). In the arrangement of the display screen, the rear surface of the screen body (34) is attached to the front surface of the recessed frame (3), and when the recessed frames (3) on both sides are close to each other, the two limiting blocks (13) are against the front surface of the support (35); After the recessed frames (3) on both sides are close to each other, the movable rods (6) are respectively located above and below the connection between the support (35) and the screen body (34); The adjustment mechanism comprises a fixed plate (8) fixedly connected to the side surface of the vertical rod (4), a threaded rod (9) slidingly penetrating the upper surface of the fixed plate (8), the outer surface fixed sleeve of the threaded rod (9) is provided with two limit sleeves (10), the two limit sleeves (10) are movably attached to the upper and lower surfaces of the fixed plate (8), the threaded rod (9) is threadedly penetrating the inner sides of the two movable rods (6), and the upper end of the threaded rod (9) is fixedly connected to a polygonal head (11); A vertical opening (7) is provided on the side surface of the vertical rod (4), and the end of the movable rod (6) is slidably inserted into the inner side of the vertical opening (7).

2. A screen detection device for display screen production according to claim 1, characterized in that: The telescopic mechanism comprises a seat (2) fixedly mounted on the rear side of the upper surface of the base frame (1); a side plate (18) is fixedly mounted on the side of the upper surface of the seat (2); a transverse cylinder (19) and a first guide cylinder (20) are fixedly mounted on the outer surface of one side of the side plate (18); a first guide rod (21) is slidably inserted into the port of the first guide cylinder (20); one end of the first guide rod (21) and the telescopic end of the transverse cylinder (19) are fixedly connected to the side surface of the recessed frame (3).

3. The screen detection device for display screen production according to claim 2, characterized in that: A rear baffle (22) is fixedly mounted on the rear edge of the upper surface of the cushion seat (2), and the front surface of the rear baffle (22) is movably attached to the rear surface of the recessed frame (3).

4. The screen detection device for display screen production according to claim 1, characterized in that: The elastic mechanism comprises a fixing seat (12) fixedly mounted at a corner of the upper surface of the recessed frame (3); a plurality of compression springs (15) are fixedly connected to the front surface of the fixing seat (12); the front ends of the compression springs (15) are fixedly connected to the rear surface of the limiting block (13); and the side edges of the limiting block (13) and the fixing seat (12) are slidably engaged in the front-to-back direction.

5. The screen detection device for display screen production according to claim 4, characterized in that: A convex rail (16) is fixedly connected to an inner wall of one side of the fixing seat (12), and a sliding opening (17) is opened on one side of the limiting block (13), and the sliding opening (17) is slidably sleeved on the outer surface of the convex rail (16).

6. The screen detection device for display screen production according to claim 1, characterized in that: The XYZ axis servo mechanism comprises a sliding frame (23) slidably mounted on the upper surface of the base frame (1) in the front-back direction, a longitudinal cylinder (24) and a second guide cylinder (25) are fixedly mounted on the front edge of the upper surface of the base frame (1), a second guide rod (26) is slidably inserted into the rear port of the second guide cylinder (25), the rear end of the second guide rod (26) and the telescopic end of the longitudinal cylinder (24) are respectively fixedly connected to the front surface of the sliding frame (23), a horizontal axis servo mechanism (27) is fixedly mounted on the rear surface of the sliding frame (23), a vertical axis servo mechanism (28) is fixedly mounted on the movable end of the horizontal axis servo mechanism (27), a slide table (29) is fixedly connected to the movable end of the vertical axis servo mechanism (28), and the rear surface of the slide table (29) is fixedly connected to the front end of the detection head (30).

7. The screen detection device for display screen production according to claim 6, characterized in that: Slide rails (31) are fixedly mounted on both sides of the upper surface of the base frame (1), and slide seats (32) are fixedly mounted on both sides of the lower surface of the sliding frame (23). The slide seats (32) are slidably mounted on the outer surfaces of the slide rails (31), and wheels (33) are mounted on the corners of the lower surface of the base frame (1).

8. A screen detection device and method for display screen production, using the device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, the user turns the display screen upside down, and the handheld display screen is at the upper end position of the support (35); S2, placing the screen body (34) downward against the front surfaces of the two recessed frames (3), and keeping the screen body (34) as close as possible to the middle of the two recessed frames (3); S3, controlling the telescopic mechanisms on both sides to push the recessed frames (3) on both sides to move closer to each other, and stopping when the ends of the recessed frames (3) on both sides abut against each other, and then releasing the hands to complete the arrangement of the display screen; S4. Controlling the XYZ servo mechanism to cause the detection head (30) to press multiple points on the front surface of the screen body (34) to perform a press detection.

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