CN113777812B - Testing arrangement is used in LCD display screen production - Google Patents
Testing arrangement is used in LCD display screen production Download PDFInfo
- Publication number
- CN113777812B CN113777812B CN202110921004.3A CN202110921004A CN113777812B CN 113777812 B CN113777812 B CN 113777812B CN 202110921004 A CN202110921004 A CN 202110921004A CN 113777812 B CN113777812 B CN 113777812B
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- Prior art keywords
- display screen
- fixed
- plate
- workstation
- tripod
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000012360 testing method Methods 0.000 title claims abstract description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 9
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Abstract
The invention discloses a testing device for LCD display screen production, which relates to the field of LCD display screen production and comprises a workbench, wherein the workbench is provided with a fixing frame at the top, the fixing frame is movably connected with the workbench, a hydraulic cylinder is fixedly arranged at the top end of the fixing frame, the movable end of the hydraulic cylinder is connected with a pressing plate, the pressing plate is slidably connected with the inner side wall of the fixing frame, the surfaces of the two ends of the workbench are respectively provided with a tripod, the surfaces of the tripod are provided with a clamping device, the bottom of the workbench is provided with a traversing device, and the tripod is movably connected with the workbench through the traversing device; according to the invention, the display screen is fixedly clamped through the pressing plate, and then the triangular frames at the two sides are moved inwards, so that the two ends of the display screen are tilted upwards, and the bending degree of the display screen is detected.
Description
Technical Field
The invention relates to the field of LCD display screen production, in particular to a testing device for LCD display screen production.
Background
Liquid Crystal Displays (LCDs) are one type of display for digital watches and many portable computers. LCD displays use two sheets of polarizing material with a liquid crystal solution in between. When an electric current is passed through the liquid, the crystals rearrange so that light cannot pass through them. Thus, each crystal acts like a shutter, allowing light to pass through it and blocking it. Liquid Crystal Displays (LCDs) are currently being developed towards light, thin, short, small targets, and display products with a long history around the computer are certainly no exception. Under the premise of convenient carrying and transporting, the conventional display modes such as CRT kinescope display and LED display panel are subject to the factors of overlarge volume or huge power consumption, and cannot meet the actual demands of users. The development of the liquid crystal display technology is exactly suitable for the trend of the current information products, and the user can enjoy the best visual environment no matter the advantages of right angle display, low power consumption, small volume, zero radiation and the like.
At present, after the production of the liquid crystal display screen is finished, the display screen is required to be detected in all aspects, one of the detection modes is to detect the curvature of the display screen, the two ends of the display screen are directly clamped and fixed, then the middle part of the display screen is pressed and bent, so that the test is finished, but the two clamped parts are easy to break due to the small areas of the clamped parts, so that the detection fails.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide the testing device for the production of the LCD display screen, which is characterized in that the display screen is fixedly clamped by the pressing plate, and then the two ends of the display screen are lifted upwards by moving the triangular frames on two sides inwards, so that the bending degree of the display screen is detected, and the lifted end surfaces are acted when the display screen is bent due to the fact that the top surface of the triangular frames is a longer inclined surface, so that the two ends of the display screen can be prevented from being broken.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a testing arrangement is used in LCD display screen production, includes the workstation, the top of workstation is provided with the mount, and the mount links to each other with the workstation activity, and the top fixed mounting of mount has the pneumatic cylinder, and the expansion end of pneumatic cylinder is connected with the clamp plate, and the clamp plate links to each other with the inside wall slip of mount, and the both ends surface of workstation all is provided with the tripod, and the surface of tripod is provided with clamping device, and the bottom of workstation is provided with sideslip device, and the tripod passes through sideslip device and links to each other with the workstation activity.
Further, the lateral wall welding of mount has the fixed block, and the surface cover of fixed block is equipped with little motor, and little motor's output shaft has the driving gear, and the lateral wall bottom of workstation is provided with the trapezoidal tooth with driving gear matched with, and driving gear meshes with the workstation, and the inside wall welding of mount has spacing slider, is provided with first slide bar in the lateral wall of workstation, and spacing slider overlaps in the surface of first slide bar.
Further, the tripod comprises a fixed bottom plate, the surface of the fixed bottom plate is hinged with a movable plate, the clamping device is located on the surface of the movable plate, an adjusting plate is arranged between the movable plate and the fixed bottom plate, one end of the adjusting plate is hinged with the fixed bottom plate, and the other end of the adjusting plate is connected with the movable plate in a sliding mode.
Further, clamping device includes two backup plates, and two backup plates are located the both sides of fly leaf respectively, rotate between two backup plates and are connected with the compression roller, and the both ends fixedly connected with lifting slide of compression roller, the outside bottom welding of backup plate have supporting baseplate, and the surface rotation of supporting baseplate is connected with the lead screw, and the top of lead screw is provided with elevator motor, and lifting slide links to each other with the lead screw thread.
Further, the compression roller comprises a hollow roller, a fixed rotating shaft is arranged at the center of an inner cavity of the hollow roller, a fixed roller is sleeved on the surface of the fixed rotating shaft, the hollow roller is rotationally connected with the fixed rotating shaft, a ratchet groove is formed in the inner side wall of the hollow roller, ratchet strips are arranged on the periphery of the fixed roller and are matched with the ratchet grooves in the inner side of the hollow roller.
Further, the sideslip device includes two-way screw rod, and two-way screw rod's one end is provided with driving motor, and two sides of two-way screw rod all are provided with the second slide bar, and two end surfaces of two-way screw rod all screw thread link to each other spacing platform, and spacing platform cover locates the surface of second slide bar, and spacing platform runs through the workstation and links to each other with the tripod.
The invention has the beneficial effects that:
1. according to the invention, the display screen is fixedly clamped through the pressing plate, and then the triangular frames at the two sides are moved inwards to enable the two ends of the display screen to tilt upwards, so that the bending degree of the display screen is detected;
2. according to the invention, the movable pressing plate is arranged, so that different bending faces can be selected to detect the display screen, and the data are more complete and reliable.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
FIG. 3 is a schematic view of the traversing device of the present invention;
FIG. 4 is a schematic view of a clamping device according to the present invention;
FIG. 5 is a schematic view showing the internal structure of the press roll of the present invention.
In the figure: 1. a work table; 11. a first slide bar; 2. a fixing frame; 21. a fixed block; 22. a small motor; 23. a drive gear; 3. a hydraulic cylinder; 4. a pressing plate; 5. a tripod; 51. a fixed bottom plate; 52. a movable plate; 53. an adjusting plate; 6. a clamping device; 61. a backup plate; 62. a press roller; 621. a hollow roller; 622. a fixed roller; 623. fixing the rotating shaft; 624. a ratchet strip; 63. a support base plate; 64. a lifting motor; 65. a screw rod; 66. a lifting slide block; 7. a traversing device; 71. a bidirectional screw; 72. a driving motor; 73. a second slide bar; 74. and a limiting table.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify 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 thus should not be construed as limiting the present invention.
The utility model provides a testing arrangement is used in LCD display screen production, as shown in FIG. 1, including workstation 1, the top of workstation 1 is provided with mount 2, and mount 2 links to each other with the activity of workstation 1, the top fixed mounting of mount 2 has pneumatic cylinder 3, the expansion end of pneumatic cylinder 3 is connected with clamp plate 4, and clamp plate 4 links to each other with the inside wall slip of mount 2, put the display screen on workstation 1, then can fix the display screen through clamp plate 4, and regard the face of fixing as the plane of buckling to detect, the both ends surface of workstation 1 all is provided with tripod 5, the top surface of tripod 5 is inwards slope setting, the surface of tripod 5 is provided with clamping device 6, the both ends of display screen stretch into from the clamping device 6 bottom of both sides respectively, and upwards lift up along the top surface of tripod 5, thereby realize the buckling detection of display screen, the bottom of workstation 1 is provided with sideslip device 7, and tripod 5 links to each other with the activity of workstation 1 through sideslip device 7.
As shown in fig. 1 and 2, a fixed block 21 is welded on the side wall of a fixed frame 2, a small motor 22 is sleeved on the surface of the fixed block 21, an output shaft of the small motor 22 is connected with a driving gear 23, trapezoidal teeth matched with the driving gear 23 are arranged at the bottom end of the side wall of a workbench 1, the driving gear 23 is meshed with the workbench 1, a limit slide block is welded on the inner side wall of the fixed frame 2, a first slide bar 11 is arranged in the side wall of the workbench 1, the limit slide block is sleeved on the surface of the first slide bar 11, and the fixed frame 2 can be driven to slide on the surface of the workbench 1 through rotation of the driving gear 23, so that the position of a pressing plate 4 can be controlled and used for detecting bending data of a display screen under different bending surfaces.
As shown in fig. 4, the tripod 5 includes a fixed bottom plate 51, a movable plate 52 is hinged on the surface of the fixed bottom plate 51, a clamping device 6 is located on the surface of the movable plate 52, an adjusting plate 53 is arranged between the movable plate 52 and the fixed bottom plate 51, one end of the adjusting plate 53 is hinged with the fixed bottom plate 51, the other end of the adjusting plate 53 is slidably connected with the movable plate 52, and the tripod 5 can adjust the angle of the movable plate 52, so that the bending test force can be increased or reduced.
As shown in fig. 4, the holding device 6 includes two backup plates 61, the two backup plates 61 are respectively located at two sides of the movable plate 52, a press roller 62 is rotatably connected between the two backup plates 61, two ends of the press roller 62 are fixedly connected with lifting slide blocks 66, a supporting base plate 63 is welded at the bottom of the outer side of the backup plate 61, a screw rod 65 is rotatably connected to the surface of the supporting base plate 63, a lifting motor 64 is arranged at the top end of the screw rod 65, and the lifting slide blocks 66 are connected with the screw rod 65 in a threaded manner and are used for adjusting the height of the press roller 62, so that a display screen can be clamped.
As shown in fig. 5, the press roller 62 includes a hollow roller 621, a fixed rotating shaft 623 is disposed at the center of an inner cavity of the hollow roller 621, a fixed roller 622 is sleeved on the surface of the fixed rotating shaft 623, the hollow roller 621 is rotatably connected with the fixed rotating shaft 623, a ratchet groove is formed in the inner side wall of the hollow roller 621, ratchet bars 624 are disposed around the fixed roller 622, the ratchet bars 624 are matched with the ratchet grooves on the inner side of the hollow roller 621, and the press roller 62 rolls along the surface of the display screen after the press roller 62 compresses the display screen through ratchet wheel setting, and meanwhile the press roller 62 can rotate in a forward direction.
As shown in fig. 3, the traversing device 7 includes a bidirectional screw 71, one end of the bidirectional screw 71 is provided with a driving motor 72, two sides of the bidirectional screw 71 are provided with second sliding rods 73, two thread sections with different end surfaces of the bidirectional screw 71 are connected with a limiting table 74 in a threaded manner, the limiting table 74 is sleeved on the surface of the second sliding rods 73, and the limiting table 74 penetrates through the workbench 1 and is connected with the tripod 5.
When the display screen is used, the display screen is placed on the workbench 1, then after the fixing frame 2 is moved to a proper position, the pressing plate 4 is pushed downwards through the hydraulic cylinder 3, the display screen is fixedly clamped, the bending surface is determined, two ends of the display screen are placed on the surface of the tripod 5, the pressing roller 62 is moved downwards, the display screen is pressed by the pressing roller 62, the inclination angle of the movable plate 52 is firstly adjusted, so that the gradient is determined, then the tripod 5 is moved inwards, the tripod 5 slides inwards, and the two ends of the display screen are tilted upwards along the movable plate 52, so that the display screen is subjected to bending detection.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (3)
1. The utility model provides a testing arrangement is used in LCD display screen production, includes workstation (1), its characterized in that, workstation (1), the top of workstation (1) is provided with mount (2), and mount (2) and workstation (1) activity link to each other, the top fixed mounting of mount (2) has pneumatic cylinder (3), the expansion end of pneumatic cylinder (3) is connected with clamp plate (4), and clamp plate (4) and the inside wall slip of mount (2) link to each other, the both ends surface of workstation (1) all is provided with tripod (5), the surface of tripod (5) is provided with clamping device (6), the bottom of workstation (1) is provided with sideslip device (7), and tripod (5) are through sideslip device (7) and workstation (1) activity link to each other;
the tripod (5) comprises a fixed bottom plate (51), a movable plate (52) is hinged to the surface of the fixed bottom plate (51), the clamping device (6) is located on the surface of the movable plate (52), an adjusting plate (53) is arranged between the movable plate (52) and the fixed bottom plate (51), one end of the adjusting plate (53) is hinged to the fixed bottom plate (51), and the other end of the adjusting plate (53) is connected with the movable plate (52) in a sliding mode;
the clamping device (6) comprises two backup plates (61), the two backup plates (61) are respectively positioned at two sides of the movable plate (52), a press roller (62) is rotationally connected between the two backup plates (61), lifting sliding blocks (66) are fixedly connected at two ends of the press roller (62), a supporting bottom plate (63) is welded at the bottom of the outer side of the backup plate (61), a screw rod (65) is rotationally connected to the surface of the supporting bottom plate (63), a lifting motor (64) is arranged at the top end of the screw rod (65), and the lifting sliding blocks (66) are in threaded connection with the screw rod (65);
the compression roller (62) comprises a hollow roller (621), a fixed rotating shaft (623) is arranged at the center of an inner cavity of the hollow roller (621), a fixed roller (622) is sleeved on the surface of the fixed rotating shaft (623), the hollow roller (621) is rotationally connected with the fixed rotating shaft (623), ratchet grooves are formed in the inner side wall of the hollow roller (621), ratchet strips (624) are arranged on the periphery of the fixed roller (622), and the ratchet strips (624) are matched with the inner side ratchet grooves of the hollow roller (621).
2. The testing device for production of the LCD display screen according to claim 1, characterized in that a fixed block (21) is welded on the side wall of the fixed frame (2), a small motor (22) is sleeved on the surface of the fixed block (21), a driving gear (23) is connected to an output shaft of the small motor (22), trapezoidal teeth matched with the driving gear (23) are arranged at the bottom end of the side wall of the workbench (1), the driving gear (23) is meshed with the trapezoidal teeth of the workbench (1), a limit slider is welded on the inner side wall of the fixed frame (2), a first sliding rod (11) is arranged in the side wall of the workbench (1), and the limit slider is sleeved on the surface of the first sliding rod (11).
3. The testing device for producing an LCD display screen according to claim 1, wherein the traversing device (7) comprises a bidirectional screw rod (71), a driving motor (72) is arranged at one end of the bidirectional screw rod (71), second sliding rods (73) are arranged at two sides of the bidirectional screw rod (71), limiting platforms (74) are connected with two end surfaces of the bidirectional screw rod (71) in a threaded mode, the limiting platforms (74) are sleeved on the surfaces of the second sliding rods (73), and the limiting platforms (74) penetrate through the workbench (1) and are connected with the tripod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921004.3A CN113777812B (en) | 2021-08-11 | 2021-08-11 | Testing arrangement is used in LCD display screen production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110921004.3A CN113777812B (en) | 2021-08-11 | 2021-08-11 | Testing arrangement is used in LCD display screen production |
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| Publication Number | Publication Date |
|---|---|
| CN113777812A CN113777812A (en) | 2021-12-10 |
| CN113777812B true CN113777812B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110921004.3A Active CN113777812B (en) | 2021-08-11 | 2021-08-11 | Testing arrangement is used in LCD display screen production |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989711A (en) * | 1995-09-22 | 1997-04-04 | Hamaguchi Keiki Kogyo Kk | Flexure inspection device for mechanical product |
| CN206601304U (en) * | 2017-02-09 | 2017-10-31 | 武汉华星光电技术有限公司 | A kind of bend testing apparatus of flexible display panels |
| CN208110197U (en) * | 2018-05-18 | 2018-11-16 | 深圳Tcl新技术有限公司 | The test device of liquid crystal display bending strength |
| CN209690081U (en) * | 2019-04-03 | 2019-11-26 | 青岛元盛光电科技盐都有限公司 | A kind of display screen curvature test-based examination device |
| CN212682116U (en) * | 2020-07-06 | 2021-03-12 | 南京南锻重工机械有限公司 | Multi-angle adjustable hydraulic bending machine |
| CN212692841U (en) * | 2020-08-31 | 2021-03-12 | 河南天扬光电科技有限公司 | Liquid crystal display glass bending degree testing device |
-
2021
- 2021-08-11 CN CN202110921004.3A patent/CN113777812B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989711A (en) * | 1995-09-22 | 1997-04-04 | Hamaguchi Keiki Kogyo Kk | Flexure inspection device for mechanical product |
| CN206601304U (en) * | 2017-02-09 | 2017-10-31 | 武汉华星光电技术有限公司 | A kind of bend testing apparatus of flexible display panels |
| CN208110197U (en) * | 2018-05-18 | 2018-11-16 | 深圳Tcl新技术有限公司 | The test device of liquid crystal display bending strength |
| CN209690081U (en) * | 2019-04-03 | 2019-11-26 | 青岛元盛光电科技盐都有限公司 | A kind of display screen curvature test-based examination device |
| CN212682116U (en) * | 2020-07-06 | 2021-03-12 | 南京南锻重工机械有限公司 | Multi-angle adjustable hydraulic bending machine |
| CN212692841U (en) * | 2020-08-31 | 2021-03-12 | 河南天扬光电科技有限公司 | Liquid crystal display glass bending degree testing device |
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| CN113777812A (en) | 2021-12-10 |
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