Backlight detection device for liquid crystal display screen production

Abstract

The utility model provides a backlight detection device for liquid crystal display screen production, which comprises a base, symmetrically distributed support plates are slidably mounted at the top of the base, an inclined component is arranged at the center of any group of support plates, and an angle adjusting component is fixedly mounted at the top of the inclined component. The end, away from the supporting plate, of the angle adjusting assembly is movably connected with a distance adjusting assembly. The interval adjusting assembly comprises a rectangular frame movably connected to the adjusting end of the angle adjusting assembly, a driving screw rod is installed on the inner wall of the rectangular frame, limiting grooves which are symmetrically distributed are formed in the outer side wall of the rectangular frame, the two ends of the driving screw rod are in threaded connection with T-shaped plates which are symmetrically distributed, and the T-shaped plates penetrate through the limiting grooves to extend outwards; according to the utility model, when liquid crystal display screens with different sizes need to be detected, the distance between the clamps is convenient to adjust, the device is suitable for detecting the liquid crystal display screens with different sizes, and the inclination angle of the liquid crystal display screens is convenient to adjust, so that multi-angle backlight detection is carried out on the liquid crystal display screens.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display screen production, in particular to a backlight detection device for liquid crystal display screen production. Background Art

[0002] The backlight module is one of the key components of the LCD panel. Its function is to provide sufficient brightness and evenly distributed light so that it can display images normally. The LCD is a passive light-emitting element. The display screen itself does not emit light, but is illuminated by the backlight system below it. The backlight source and the LCD screen together constitute the LCD display module. During the production process of the LCD screen, a backlight detector is required to perform multi-angle detection on it.

[0003] After searching, in the prior art, the Chinese patent with patent application number CN202011240338.6 discloses "a quality inspection device for a liquid crystal display backlight module. Aiming at the problem of low efficiency of manual lighting inspection of the existing liquid crystal display backlight module, the following scheme is proposed, which includes a detection table, an L-shaped bracket is fixedly installed on one side of the top of the detection table, and a detection lens is arranged at the bottom end of the horizontal section of the bracket, an adjustment device is arranged between the detection lens and the bracket, a storage box is fixedly installed on the top of the detection table, and a fixing plate is fixedly connected to the back of the detection table, and a mounting plate is fixedly connected to the side of the fixing plate away from the detection table. The structure of the present invention is novel, and the device can effectively perform lighting inspection operations on the liquid crystal display backlight module in different directions and angles, which reduces the workload of workers and improves the accuracy and efficiency of backlight module inspection, and is suitable for popularization and use", but there are still the following defects:

[0004] (1) When it is necessary to test LCD screens of different sizes, it is inconvenient to adjust the distance between the fixtures, and it is not suitable for testing screens of different sizes;

[0005] (2) It is not convenient to adjust the tilt angle of the LCD screen, thereby performing backlight detection on the LCD screen at multiple angles.

[0006] Therefore, we have made improvements to this and proposed a backlight detection device for liquid crystal display production. Utility Model Content

[0007] The purpose of the utility model is to solve the problem that when it is necessary to detect liquid crystal screens of different sizes, it is inconvenient to adjust the spacing between fixtures, it is not suitable for the detection of screens of different sizes, it is inconvenient to adjust the inclination angle of the liquid crystal screen, and thus the backlight detection of the liquid crystal screen at multiple angles is performed.

[0008] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0009] A backlight detection device for liquid crystal display production comprises a base, a symmetrically distributed support plate is slidably mounted on the top of the base, a tilting assembly is arranged at the center of any group of the support plates, an angle adjustment assembly is fixedly mounted on the top of the tilting assembly, and a spacing adjustment assembly is movably connected to one end of the angle adjustment assembly away from the support plate;

[0010] The spacing adjustment component includes a rectangular frame movably connected to the adjustment end of the angle adjustment component, a driving screw is installed on the inner wall of the rectangular frame, and symmetrically distributed limiting grooves are opened on the outer wall of the rectangular frame, and symmetrically distributed T-shaped plates are threadedly connected at both ends of the driving screw, and the T-shaped plates extend outward through the limiting grooves, and a clamp is fixedly installed on the extended end of any group of the T-shaped plates, a clamping rod is threadedly connected at the top center of the clamp, a rubber anti-slip pad is fixedly provided on the bottom inner wall of the clamp, and symmetrically distributed support rods are installed on the inner side walls at both ends of the T-shaped plates.

[0011] As a preferred technical solution of the utility model, the angle adjustment assembly includes an inverted U-shaped seat fixedly installed on the top of the tilting assembly, a hydraulic cylinder is fixedly arranged on the inner wall of the inverted U-shaped seat, the telescopic end of the hydraulic cylinder is connected to a telescopic rod, the end of the telescopic rod away from the hydraulic cylinder is movably connected to a symmetrically distributed connecting rod, the end of the connecting rod away from the telescopic rod is movably connected to a fixed block, and the fixed block is fixedly connected to the outer wall of the rectangular frame.

[0012] As a preferred technical solution of the utility model, the tilting assembly includes a driving shaft installed at the center of the support plate, a fixed cross bar is fixedly provided at the output end of the driving shaft, a fixed seat is movably connected to the end of the fixed cross bar away from the driving shaft, and the fixed seat is fixedly connected to the outer wall of the rectangular frame, and the fixed seat is located below the fixed block.

[0013] As a preferred technical solution of the utility model, symmetrically distributed sliders are fixedly provided at the bottom of the support plate, and any group of the sliders are slidably connected to the symmetrically distributed slide grooves on the top of the base. A screw rod is rotatably installed in the middle of the base, and the screw rod extends outward through the two groups of support plates, and a rotating handle is fixedly provided at the extended end of the screw rod.

[0014] As a preferred technical solution of the utility model, any group of the outer side walls of the support plates are fixedly provided with a protective shell covering the outer side of the driving shaft input end, and the outer side walls of the rectangular frame are fixedly provided with an outer shell covering the outer side of the driving screw input end.

[0015] As a preferred technical solution of the utility model, a connecting block is fixedly arranged between the clamps at the extending ends of the two groups of T-shaped plates, the connecting block is fixedly connected to the outer wall of the rectangular frame, the outer wall of the connecting block is fixedly installed with a clamp, and three groups of the clamps are arranged.

[0016] As a preferred technical solution of the utility model, an L-shaped plate is fixedly installed on the outer wall of the middle part of the base, and a detector is fixedly arranged at the top center of the L-shaped plate.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the solution of the utility model:

[0019] 1. By providing threaded connection with symmetrically distributed T-shaped plates at both ends of the driving screw, a fixture is fixedly installed at one end of the symmetrically distributed T-shaped plates, and a connecting block and a fixture are fixedly arranged in the middle of one end of the rectangular frame close to the limit groove, so that when the driving screw is rotated forward, the two sets of fixtures fixedly installed at one end of the T-shaped plate are close to each other, and when the driving screw is reversed, the two sets of fixtures fixedly installed at one end of the T-shaped plate are away from each other, which solves the problem that when it is necessary to detect LCD screens of different sizes, it is inconvenient to adjust the spacing between the fixtures and it is not suitable for the detection of screens of different sizes;

[0020] 2. The telescopic rod is extended by the hydraulic cylinder, so that the telescopic rod drives the clamp on the rectangular frame to adjust the up and down tilt angle, and the driving shaft is also arranged to drive the fixed cross bar to rotate, thereby driving the clamp installed on the rectangular frame to adjust the left and right tilt angle, thereby facilitating the adjustment of the tilt angle of the LCD screen on the clamp, solving the problem of the inconvenience in adjusting the tilt angle of the LCD screen, thereby performing backlight detection of the LCD screen at multiple angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a backlight detection device for LCD display production provided by the utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the backlight detection device for LCD display production provided by the utility model;

[0023] Figure 3 A schematic diagram of the three-dimensional structure of a support plate of a backlight detection device for LCD production provided by the utility model;

[0024] Figure 4 A schematic diagram of the side view structure of the support plate of the backlight detection device for LCD production provided by the utility model;

[0025] Figure 5 A three-dimensional structural diagram of a spacing adjustment component of a backlight detection device for LCD production provided by the utility model;

[0026] Figure 6A schematic diagram of the exploded structure of the spacing adjustment component of the backlight detection device for LCD production provided by the utility model;

[0027] Figure 7 The utility model provides a backlight detection device for LCD display production Figure 6 A in the figure is an enlarged structural diagram.

[0028] Indicated in the figure:

[0029] 1. Base; 2. Support plate; 3. Tilt assembly; 301. Drive shaft; 302. Fixed cross bar; 303. Fixed seat; 4. Angle adjustment assembly; 401. Inverted U-shaped holder; 402. Hydraulic cylinder; 403. Telescopic rod; 404. Connecting rod; 405. Fixed block; 5. Spacing adjustment assembly; 501. Rectangular frame; 502. Drive screw; 503. T-shaped plate; 504. Limiting groove; 505. Clamp; 506. Clamping rod; 507. Rubber anti-skid pad; 508. Connecting block; 509. Support rod; 6. Slider; 7. Slide; 8. Screw; 9. Rotating handle; 10. Protective shell; 11. Outer shell; 12. L-shaped plate; 13. Detector. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0031] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] like Figure 1-7As shown, this embodiment proposes a backlight detection device for liquid crystal display production, including a base 1, a symmetrically distributed support plate 2 is slidably mounted on the top of the base 1, a tilting component 3 is arranged at the center of any group of support plates 2, an angle adjustment component 4 is fixedly mounted on the top of the tilting component 3, and a spacing adjustment component 5 is movably connected to one end of the angle adjustment component 4 away from the support plate 2;

[0035] The spacing adjustment component 5 includes a rectangular frame 501 movably connected to the adjustment end of the angle adjustment component 4, a driving screw 502 is installed on the inner wall of the rectangular frame 501, and symmetrically distributed limiting grooves 504 are opened on the outer wall of the rectangular frame 501, and symmetrically distributed T-shaped plates 503 are threadedly connected at both ends of the driving screw 502, and the T-shaped plates 503 extend outward through the limiting grooves 504, and a clamp 505 is fixedly installed on the extended end of any group of T-shaped plates 503, and a clamping rod 506 is threadedly connected at the top center of the clamp 505, a rubber anti-slip pad 507 is fixedly provided on the inner wall of the bottom of the clamp 505, and symmetrically distributed support rods 509 are installed on the inner walls at both ends of the T-shaped plates 503. When it is necessary to detect LCD screens of different sizes, it is convenient to adjust the spacing between the clamps 505, which is suitable for backlight detection of display screens of different sizes.

[0036] like Figure 4 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the angle adjustment component 4 includes an inverted U-shaped holder 401 fixedly installed on the top of the tilting component 3, and a hydraulic cylinder 402 is fixedly arranged on the inner wall of the inverted U-shaped holder 401, and the telescopic end of the hydraulic cylinder 402 is connected to a telescopic rod 403, and the end of the telescopic rod 403 away from the hydraulic cylinder 402 is movably connected to a symmetrically distributed connecting rod 404, and the end of the connecting rod 404 away from the telescopic rod 403 is movably connected to a fixed block 405, and the fixed block 405 is fixedly connected to the outer wall of the rectangular frame 501, so as to facilitate driving the clamp 505 installed on the rectangular frame 501 to adjust the up and down tilt angle.

[0037] like Figure 4 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the tilting component 3 includes a driving shaft 301 installed at the center of the support plate 2, and a fixed cross bar 302 is fixedly provided at the output end of the driving shaft 301, and the fixed cross bar 302 is movably connected to a fixed seat 303 at one end away from the driving shaft 301, and the fixed seat 303 is fixedly connected to the outer wall of the rectangular frame 501, and the fixed seat 303 is located below the fixed block 405, so as to drive the clamp 505 installed on the rectangular frame 501 to adjust the left and right tilt angles.

[0038] like Figure 1As shown, as a preferred embodiment, on the basis of the above method, further, symmetrically distributed sliders 6 are fixedly provided at the bottom of the support plate 2, and any group of sliders 6 is slidably connected to the slide grooves 7 symmetrically distributed on the top of the base 1, and a screw rod 8 is rotatably installed in the middle of the base 1, and the screw rod 8 extends outward through the two groups of support plates 2, and a rotating handle 9 is fixedly provided at the extended end of the screw rod 8, which is convenient for adjusting the distance between the two groups of support plates 2, so that it is suitable for display screens of different sizes.

[0039] like Figure 1 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the outer wall of any group of support plates 2 is fixedly installed with a protective shell 10 covering the outer side of the input end of the driving shaft 301, and the outer wall of the rectangular frame 501 is fixedly provided with a shell 11 covering the outer side of the input end of the driving screw 502, so as to protect the input ends of the driving shaft 301 and the driving screw 502.

[0040] like Figure 6 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a connecting block 508 is fixedly arranged between the clamps 505 located at the extended ends of the two groups of T-shaped plates 503, the connecting block 508 is fixedly connected to the outer wall of the rectangular frame 501, and the outer wall of the connecting block 508 is fixedly installed with the clamp 505, and the clamp 505 is arranged in three groups, which is convenient for dispersing the clamping points and greatly improves the stability of the clamp 505.

[0041] like Figure 2 As shown, as a preferred embodiment, based on the above method, further, an L-shaped plate 12 is fixedly installed on the middle outer wall of the base 1, and a detector 13 is fixedly set at the top center of the L-shaped plate 12 to facilitate backlight detection of the LCD screen.

[0042] Specifically, when the backlight detection device for LCD production is used: the screw 8 installed on the base 1 is driven to rotate by the rotating handle 9, and the two ends of the screw 8 are threadedly connected with symmetrically distributed support plates 2. When the screw 8 rotates forward, the two groups of support plates 2 are close to each other, and when the screw 8 rotates reversely, the two groups of support plates 2 are away from each other, so that the distance between the two groups of support plates 2 can be adjusted easily;

[0043] A driving screw 502 driven by a forward and reverse motor is provided to rotate, and threadedly connected T-shaped plates 503 symmetrically distributed are provided at both ends of the driving screw 502. When the driving screw 502 rotates forward, two sets of clamps 505 fixedly installed at one end of the T-shaped plate 503 approach each other. When the driving screw 502 rotates reversely, the two sets of clamps 505 fixedly installed at one end of the T-shaped plate 503 move away from each other. A connecting block 508 and a clamp 505 are fixedly provided in the middle of one end of the rectangular frame 501 close to the limiting groove 504. When it is necessary to detect LCD screens of different sizes, it is convenient to adjust the distance between the clamps 505, which is suitable for backlight detection of screens of different sizes.

[0044] The telescopic rod 403 is driven to retract by a hydraulic cylinder 402 installed on the inner side wall of the inverted U-shaped holder 401, and a connecting rod 404 is movably connected to one end of the telescopic rod 403, and a fixed block 405 is movably connected to the end of the connecting rod 404 away from the telescopic rod 403, and the fixed block 405 is fixedly connected to the outer side wall of the rectangular frame 501. When the hydraulic cylinder 402 drives the telescopic rod 403 to extend, the angle between the connecting rod 404 and the telescopic rod 403 becomes smaller, thereby driving the rectangular frame 501 to adjust the angle, and evenly distributed clamps 505 are arranged on the rectangular frame 501, so as to facilitate driving the clamps 505 installed on the rectangular frame 501 to adjust the up and down tilt angles, thereby performing backlight detection of the LCD screen at multiple angles;

[0045] Finally, the fixed cross bar 302 is driven to rotate through the set driving shaft 301, and a fixed seat 303 is movably connected to one end of the fixed cross bar 302, and one end of the fixed seat 303 is fixedly connected to the rectangular frame 501, so as to drive the clamp 505 installed on the rectangular frame 501 to adjust the left and right tilt angles.

[0046] All technical features in this embodiment can be freely combined according to actual needs.

[0047] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A backlight detection device for liquid crystal display production, comprising a base (1), It is characterized in that A symmetrically distributed support plate (2) is slidably mounted on the top of the base (1); a tilting assembly (3) is arranged at the center of any group of the support plates (2); an angle adjustment assembly (4) is fixedly mounted on the top of the tilting assembly (3); and a spacing adjustment assembly (5) is movably connected to one end of the angle adjustment assembly (4) away from the support plate (2); The spacing adjustment component (5) comprises a rectangular frame (501) movably connected to the adjustment end of the angle adjustment component (4); a driving screw (502) is installed on the inner wall of the rectangular frame (501); and symmetrically distributed limiting grooves (504) are opened on the outer wall of the rectangular frame (501); symmetrically distributed T-shaped plates (503) are threadedly connected at both ends of the driving screw (502); the T-shaped plates (503) extend outward through the limiting grooves (504); a clamp (505) is fixedly installed at the extended end of any group of the T-shaped plates (503); a clamping rod (506) is threadedly connected at the top center of the clamp (505); a rubber anti-slip pad (507) is fixedly installed on the bottom inner wall of the clamp (505); and symmetrically distributed support rods (509) are installed on the inner side walls at both ends of the T-shaped plates (503).

2. A backlight detection device for liquid crystal display production according to claim 1, It is characterized in that The angle adjustment assembly (4) comprises an inverted U-shaped holder (401) fixedly mounted on the top of the tilting assembly (3); a hydraulic cylinder (402) is fixedly arranged on the inner wall of the inverted U-shaped holder (401); a telescopic end of the hydraulic cylinder (402) is connected to a telescopic rod (403); one end of the telescopic rod (403) away from the hydraulic cylinder (402) is movably connected to symmetrically distributed connecting rods (404); one end of the connecting rod (404) away from the telescopic rod (403) is movably connected to a fixed block (405); and the fixed block (405) is fixedly connected to the outer wall of the rectangular frame (501).

3. A backlight detection device for liquid crystal display production according to claim 2, It is characterized in that The tilting assembly (3) comprises a driving shaft (301) mounted at the center of the support plate (2); a fixed cross bar (302) is fixedly provided at the output end of the driving shaft (301); an end of the fixed cross bar (302) away from the driving shaft (301) is movably connected to a fixed seat (303); the fixed seat (303) is fixedly connected to the outer wall of the rectangular frame (501); and the fixed seat (303) is located below the fixed block (405).

4. A backlight detection device for liquid crystal display production according to claim 3, It is characterized in that The bottom of the support plate (2) is fixedly provided with symmetrically distributed sliders (6), and any group of the sliders (6) is slidably connected to the slide grooves (7) symmetrically distributed on the top of the base (1). A screw rod (8) is rotatably installed in the middle of the base (1), and the screw rod (8) passes through the two groups of support plates (2) and extends outwards. A rotating handle (9) is fixedly provided at the extended end of the screw rod (8).

5. A backlight detection device for liquid crystal display production according to claim 4, It is characterized in that A protective shell (10) covering the outside of the input end of the driving shaft (301) is fixedly mounted on the outer side wall of any group of the support plates (2), and a shell (11) covering the outside of the input end of the driving screw (502) is fixedly mounted on the outer side wall of the rectangular frame (501).

6. A backlight detection device for liquid crystal display production according to claim 1, It is characterized in that A connecting block (508) is fixedly arranged between the clamps (505) located at the extended ends of the two groups of T-shaped plates (503), and the connecting block (508) is fixedly connected to the outer wall of the rectangular frame (501). The outer wall of the connecting block (508) is fixedly installed with a clamp (505), and three groups of the clamps (505) are arranged.

7. A backlight detection device for liquid crystal display production according to claim 4, It is characterized in that An L-shaped plate (12) is fixedly mounted on the outer side wall of the middle portion of the base (1), and a detector (13) is fixedly arranged at the top center of the L-shaped plate (12).

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