An LCD display production viewing angle testing device

Abstract

This application provides an LCD display production viewing angle testing device, relating to the field of display screen viewing angle testing technology. The LCD display production viewing angle testing device includes a test platform, on which a horizontal rotation mechanism is arranged. A vertical rotation mechanism is coaxially fixed to the horizontal rotation mechanism, and a display screen is clamped onto the vertical rotation mechanism. Two sets of sway suppression mechanisms are respectively arranged on the rotating platform and the side skirts. One set of the sway suppression mechanisms is arranged vertically and the other is arranged horizontally. The two sets of sway suppression mechanisms apply tension to the rotating platform and the side skirts respectively. A test probe is also installed on the test platform. By utilizing the two sets of sway suppression mechanisms on the bottom side of the rotating platform to apply tension from the axial and radial directions respectively, the axial offset of the rotating platform during rotation is corrected, improving the accuracy and efficiency of the test results.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of display screen viewing angle testing, in particular to an LCD display screen production viewing angle testing device. BACKGROUND

[0002] In the prior art, such as the LCD display screen production viewing angle testing device disclosed in the patent with the announcement number CN217444051U, a testing base plate is provided with a mounting groove on one side of the upper surface, a rotating disc is arranged in the mounting groove, an installation vertical plate for fixing and installing a display screen is connected to the upper surface of the rotating disc, a spectroradiometric luminance meter is connected to the other side of the upper surface of the testing base plate, a positioning ring convex is arranged on the outside of the mounting groove on the upper surface of the testing base plate, a scale line is arranged on the upper surface of the positioning ring convex, and a pointer is connected to one side of the installation vertical plate.

[0003] The scheme can accurately determine the angle of rotation by the clear indication between the pointer and the scale line, so that the data collected at different angles is more accurate, and the test error is reduced.

[0004] For example, the display screen production testing device disclosed in the patent with the announcement number CN106920494B comprises a box body, an opening is arranged on one side of the box body, a shielding cloth is fixedly installed at the top end in the opening, a color analyzer probe is fixedly installed on the inner wall of the front end of the box body, the color analyzer probe faces the rear end of the box body, a vertical display screen is arranged in the middle of the box body, a cross-shaped support frame is fixedly installed at the rear end of the display screen, circular grooves are arranged at the four ends of the cross-shaped support frame, the grooves are communicated with the outside, a plurality of tooth grooves are arranged on the inner wall of the grooves, and the tooth grooves are uniformly distributed around the center of the grooves and communicated with the grooves.

[0005] The scheme does not need manual operation, the second electromagnetic block is powered on, the second electromagnetic block and the second magnetic block are adsorbed and matched, the third gear and the fourth gear are separated, the display screen is rotated around the vertical shaft of the cross-shaped support frame, the color analyzer probe tests the viewing angle of the display screen in the horizontal direction, and thus the testing of the display screen is completed.

[0006] However, in the above two schemes, when the display screen is rotated, only simple rotation of the display screen can be ensured, and the axial offset of the display screen cannot be ensured, and once the axial offset occurs during rotation, the test angle will be inaccurate, the accuracy of the test result will be reduced, and the viewing angle testing of the display screen will be affected. SUMMARY

[0007] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides an LCD display screen production viewing angle testing device, comprising a test table, wherein the test table is provided with a horizontal rotating mechanism, the horizontal rotating mechanism is coaxially fixed with a vertical rotating mechanism, the vertical rotating mechanism is clamped with a display screen, the horizontal rotating mechanism drives the vertical rotating mechanism and the display screen to rotate in the horizontal direction, and the vertical rotating mechanism drives the display screen to rotate in the vertical direction; the horizontal rotating mechanism comprises a rotating table, the bottom end of the rotating table is coaxially provided with a rotating seat, the rotating seat is fixed to the test table, the bottom end of the rotating table is coaxially fixed with a side skirt, the side skirt is rotatably connected to one end of the rotating seat away from the test table, two sets of yaw suppression mechanisms are respectively arranged on the rotating table and the side skirt, one set of the yaw suppression mechanisms is vertically arranged, the other set of the yaw suppression mechanisms is horizontally arranged, the vertically arranged yaw suppression mechanisms are uniformly arranged on the outside of the bottom end of the rotating table, the horizontally arranged yaw suppression mechanisms are uniformly arranged on the outside of the bottom end of the side skirt, and the two sets of yaw suppression mechanisms respectively apply tension to the rotating table and the side skirt; a test probe is also installed on the test table, and the test probe is displaceable on the test table.

[0008] Preferably, the upper end surface of the test table is provided with a protective cover, and the protective cover is provided with a movable door.

[0009] Preferably, the upper end surface of the rotating table is radially fixed with a horizontal pointer; the lower end surface of the rotating table is coaxially fixed with an annular slide, the cross section of the annular slide is two symmetrical L shapes, the two symmetrical L shapes are not connected, and the annular slide and the vertically arranged yaw suppression mechanism are in sliding fit.

[0010] Preferably, the outer wall of the bottom of the side skirt is coaxially provided with an annular sliding groove, and the annular sliding groove and the horizontally arranged yaw suppression mechanism are in sliding fit.

[0011] Preferably, the horizontal rotating mechanism further comprises a horizontal rotating motor, the horizontal rotating motor is fixed to the inner top of the test table, the output shaft of the horizontal rotating motor is coaxially keyed connected with a driving shaft, one end of the driving shaft is rotatably extended to the upper end surface of the test table and is keyed connected with a gear, the outside of the gear is sleeved with a gear ring, the gear ring and the gear are in engagement, and the gear ring is coaxially fixed to the rotating table.

[0012] Preferably, the upper end surface of the rotating table is coaxially sleeved with a horizontal angle reference platform, and the horizontal angle reference platform is fixed to the test table through a plurality of supporting legs fixed to the bottom end of the horizontal angle reference platform.

[0013] Preferably, the vertical rotation mechanism includes two supports, two vertical angle reference platforms, a crossbeam, two vertical rotation motors, and two locking brackets. The two supports are symmetrically fixed to the upper surface of the rotary table, and the top ends of the two supports are symmetrically fixed to the two vertical angle reference platforms. The crossbeam is rotatably connected to the top ends of the two supports. The two vertical rotation motors are respectively fixed to the two supports and are used to drive the crossbeam to rotate. The two locking brackets are slidably connected to the crossbeam and are used to support the display screen.

[0014] Preferably, the vertical angle reference platform is rotatably equipped with two vertical pointers, and the two vertical pointers are set at 180° apart;

[0015] Two connecting discs are symmetrically fixed at both ends of the crossbeam. A connecting shaft is coaxially fixed to each of the two connecting discs. The connecting shaft is rotatably inserted into the bracket and coaxially fixed to the vertical pointer.

[0016] A bevel gear set is keyed to the output shaft of the vertical rotating motor, and the end of the bevel gear set away from the vertical rotating motor is keyed to the connecting shaft.

[0017] Preferably, the test probe is mounted on a mobile device, which includes a vertical displacement component and a horizontal displacement component. The horizontal displacement component is fixed to the inner top of the protective cover, the vertical displacement component is fixed to the displacement end of the horizontal displacement component, and the test probe is fixed to the displacement end of the vertical displacement component.

[0018] Preferably, the two sets of sway suppression mechanisms have the same structure. The sway suppression mechanism includes a plurality of telescopic members evenly arranged in the circumferential direction. One end of the telescopic member is fixed to an L-shaped retaining ring, which is fixed to the test platform. An I-shaped block is fixed to the movable end of the telescopic member. The I-shaped block in the vertical sway suppression mechanism is slidably engaged with the annular slide rail, and the I-shaped block in the horizontal sway suppression mechanism is slidably engaged with the annular slide groove. A plurality of balls are evenly embedded on the I-shaped block.

[0019] The beneficial effects of this invention are:

[0020] 1. The display screen is rotated horizontally using a horizontal rotation mechanism and vertically using a vertical rotation mechanism. The display screen is monitored in real time under different rotation states using a test probe to complete the test. The horizontal and vertical angle reference platforms serve as references to improve the accuracy of the rotation angle.

[0021] 2. The two sets of deflection suppression mechanisms on the bottom side of the rotating table are used to apply pulling force from the axial and radial directions respectively to correct the axial deviation of the rotating table during rotation, improve the stability of the rotating table rotation, improve the accuracy and efficiency of the test results, and avoid the deviation of the test angle caused by the axial deviation of the rotating table during rotation, thereby affecting the test results;

[0022] 3. The balls are used to reduce the friction between the I-shaped block and the rotating table, reduce the tangential force between the two sets of deflection suppression mechanisms due to rotation, and ensure the stability of the deflection suppression mechanisms.

[0023] Additional aspects and advantages of the application will be made apparent by the following description and the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0025] Figure 1 is a schematic diagram of the overall structure of an LCD display screen production viewing angle test device according to an embodiment of the application;

[0026] Figure 2 is a schematic diagram of the local structure of an LCD display screen production viewing angle test device according to an embodiment of the application;

[0027] Figure 3 is a schematic diagram of the installation structure of a test probe according to an embodiment of the application;

[0028] Figure 4 is a schematic diagram of the local structure of a horizontal rotation mechanism, a vertical rotation mechanism and two sets of deflection suppression mechanisms according to an embodiment of the application;

[0029] Figure 5 is a schematic diagram of the local structure of a horizontal rotation mechanism and two sets of deflection suppression mechanisms according to an embodiment of the application; Figure 4 is an enlarged schematic diagram of A in FIG. 6;

[0030] Figure 6 is an exploded view of the local structure of a horizontal rotation mechanism and two sets of deflection suppression mechanisms according to an embodiment of the application;

[0031] Figure 7 is an exploded view of the local structure of a deflection suppression mechanism and a spacing suppression strip according to an embodiment of the application;

[0032] Figure 8is a structure schematic view of a yaw suppression mechanism according to an embodiment of the present application;

[0033] Figure 9 is a partial structure schematic view of an energy dissipation assembly according to an embodiment of the present application Figure 1 ;

[0034] Figure 10 is a partial structure schematic view of an energy dissipation assembly according to an embodiment of the present application Figure 2 ;

[0035] Figure 11 is a bottom view structure schematic view of a claw-shaped through slot according to an embodiment of the present application.

[0036] Figure: 1, test bench; 11, protective cover; 12, movable door; 2, horizontal rotation mechanism; 21, rotating table; 211, rotating seat; 212, side skirt; 213, horizontal pointer; 214, annular slide; 215, annular slide groove; 22, horizontal rotation motor; 221, drive shaft; 222, gear; 223, gear ring; 23, horizontal angle reference platform; 231, support leg; 3, vertical rotation mechanism; 31, support; 32, vertical angle reference platform; 321, vertical pointer; 33, crossbeam; 331, connecting disc; 332, connecting shaft; 34, vertical rotation motor; 341, bevel gear set; 35, clamping frame; 4, display screen; 5, test probe; 51, vertical displacement assembly; 52, horizontal displacement assembly; 6, yaw suppression mechanism; 61, telescopic piece; 62, I-shaped block; 621, accommodating cavity; 622, embedded cabin; 63, ball; 7, energy dissipation assembly; 71, flow guide partition plate; 711, flow guide through hole; 72, liquid conveying piece; 721, liquid inlet pipe; 722, liquid outlet pipe; 73, claw-shaped through slot; 8, spacing suppression strip. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0039] Embodiment one, as Figures 1-11As shown, the LCD display screen production visual angle testing device according to the embodiment of the application comprises a testing table 1, wherein the testing table 1 is provided with a horizontal rotating mechanism 2, the horizontal rotating mechanism 2 is coaxially and fixedly connected with a vertical rotating mechanism 3, the vertical rotating mechanism 3 is clamped with a display screen 4, the horizontal rotating mechanism 2 drives the vertical rotating mechanism 3 and the display screen 4 to rotate in the horizontal direction, the vertical rotating mechanism 3 drives the display screen 4 to rotate in the vertical direction, and the testing table 1 is further provided with a testing probe 5, which is displaceable on the testing table 1.

[0040] It should be noted that in the specific embodiments of the application, the testing probe 5 can be a multi-angle photometer for measuring the brightness and chromaticity values of the display screen 4 under different visual angles, and the specific testing principle is prior art, which will not be described here.

[0041] As shown in Figure 2 , Figure 4 and Figure 6 , the horizontal rotating mechanism 2 comprises a rotating table 21, the bottom end of the rotating table 21 is coaxially provided with a rotating seat 211, the rotating seat 211 is fixedly connected to the testing table 1, the bottom end of the rotating table 21 is coaxially and fixedly connected with a side skirt 212, the side skirt 212 is rotationally connected to the end of the rotating seat 211 away from the testing table 1, two groups of yaw suppression mechanisms 6 are respectively arranged on the rotating table 21 and the side skirt 212, one of the two groups of yaw suppression mechanisms 6 is vertically arranged, the other of the two groups of yaw suppression mechanisms 6 is horizontally arranged, the vertically arranged yaw suppression mechanisms 6 are circumferentially and uniformly arranged on the outer side of the bottom end of the rotating table 21, the horizontally arranged yaw suppression mechanisms 6 are circumferentially and uniformly arranged on the outer side of the bottom end of the side skirt 212, the two groups of yaw suppression mechanisms 6 respectively exert a pulling force on the rotating table 21 and the side skirt 212, for exerting a pulling force on the rotating table 21 from the axial and radial directions, so as to ensure the stability of the rotating table 21 during rotation and avoid axial deviation during rotation to affect the accuracy of the test results.

[0042] Specifically, as shown in Figure 1 and Figure 2 , the upper end surface of the testing table 1 is provided with a protective cover 11, the protective cover 11 is provided with a movable door 12, it should be noted that the protective cover 11 is preferably a light shielding material, and it is built-in light source, it can be understood that the protective cover 11 provides uniform and stable lighting for the test environment, reduces the influence of environmental light on the test results, and ensures the consistency and comparability of the test results.

[0043] As shown in Figure 4 , Figure 6 and Figure 7As shown in the figure, the upper end surface of the rotating table 21 is fixed with a horizontal pointer 213 in the radial direction; the lower end surface of the rotating table 21 is coaxially fixed with an annular slide 214, the cross section of the annular slide 214 is two symmetrical L shapes, the two symmetrical L shapes are not connected, and the annular slide 214 and the vertical yaw suppression mechanism 6 are in sliding fit.

[0044] As shown in the figure, the outer wall of the side skirt 212 is coaxially provided with an annular sliding groove 215, and the annular sliding groove 215 and the transverse yaw suppression mechanism 6 are in sliding fit.

[0045] As shown in the figure, Figure 4 and Figure 6 As shown in the figure, the horizontal rotation mechanism 2 further includes a horizontal rotation motor 22, which is fixed to the inner top of the test table 1, and the output shaft of the horizontal rotation motor 22 is coaxially keyed connected with a drive shaft 221, one end of the drive shaft 221 is rotatably extended to the upper end surface of the test table 1 and is keyed connected with a gear 222, the outer side of the gear 222 is sleeved with a gear ring 223, the gear ring 223 and the gear 222 are engaged, and the gear ring 223 is coaxially fixed to the rotating table 21, so it can be known that when the horizontal rotation motor 22 is started, it will drive the drive shaft 221 to rotate, in turn drive the gear 222 to rotate, by using the gear ring 223 engaged with the gear 222 and the rotating table 21 fixed with the gear ring 223, the rotating table 21 can be rotated on the rotating seat 211 by the rotating gear 222, so that the vertical rotation mechanism 3 and the display screen 4 on the rotating table 21 can be rotated in the horizontal direction.

[0046] Further, the upper end surface of the rotating table 21 is coaxially sleeved with a horizontal angle reference platform 23, which is fixed to the test table 1 by a plurality of supporting legs 231 fixed to the bottom end of the horizontal angle reference platform 23.

[0047] Therefore, by using the indication change of the horizontal pointer 213 on the horizontal angle reference platform 23, the specific angle of the display screen 4 rotating in the horizontal direction can be known.

[0048] It should be noted that the horizontal angle reference platform 23 is circumferentially provided with 360° angle values.

[0049] As shown in the figure, Figure 4 and Figure 5 As shown in the figure, the vertical rotation mechanism 3 includes two brackets 31, two vertical angle reference platforms 32, a cross beam 33, two vertical rotation motors 34 and two clamping frames 35, the two brackets 31 are symmetrically fixed to the upper end surface of the rotating table 21, the top ends of the two brackets 31 are symmetrically fixed with the two vertical angle reference platforms 32, the cross beam 33 is rotatably connected to the top ends of the two brackets 31, the two vertical rotation motors 34 are respectively fixed to the two brackets 31 and are used to drive the cross beam 33 to rotate, and the two clamping frames 35 are slidably connected to the cross beam 33 and are used to carry the display screen 4.

[0050] It should be noted that the two ends of the clamping frame 35 are elastically stretched, and the sliding of the two clamping frames 35 on the cross beam 33 can be adapted to different sizes of LCD displays.

[0051] Specifically, the vertical angle reference platform 32 is rotationally provided with two vertical pointers 321, and the two vertical pointers 321 are arranged at 180°. It should be noted that the angles on the two vertical angle reference platforms 32 are arranged at 180°, so as to avoid the vertical angle reference platform 32 from blocking the display screen 4 and affecting the test of the test probe 5 on the display screen 4. Meanwhile, the two vertical pointers 321 are arranged at 180°, so that no matter how the display screen 4 rotates in the vertical direction, the rotation angle of the display screen 4 can be known through the indication of the vertical pointer 321 on the vertical angle reference platform 32.

[0052] Specifically, the two ends of the cross beam 33 are symmetrically and fixedly connected with two connecting discs 331, the two connecting discs 331 are coaxially and fixedly connected with connecting shafts 332 respectively, the connecting shafts 332 are rotationally inserted into the bracket 31 and coaxially and fixedly connected with the vertical pointers 321, and the output shaft of the vertical rotation motor 34 is key-connected with a bevel gear set 341, and one end of the bevel gear set 341 away from the vertical rotation motor 34 is key-connected to the connecting shaft 332.

[0053] It should be noted that the bevel gear set 341 is composed of two bevel gears which are 90° and meshed with each other.

[0054] Therefore, when the vertical rotation motor 34 drives the connecting shaft 332 to rotate through the bevel gear set 341, the cross beam 33, the clamping frame 35, the display screen 4 and the vertical pointer 321 will rotate together.

[0055] As shown in Figure 2 and Figure 3 , the test probe 5 is installed on a mobile device, and the mobile device includes a vertical displacement assembly 51 and a horizontal displacement assembly 52. The horizontal displacement assembly 52 is fixedly connected to the inner top of the protective cover 11, the vertical displacement assembly 51 is fixedly connected to the displacement end of the horizontal displacement assembly 52, and the test probe 5 is fixedly connected to the displacement end of the vertical displacement assembly 51.

[0056] Therefore, the movement of the displacement end of the horizontal displacement assembly 52 will drive the horizontal displacement of the vertical displacement assembly 51 and the test probe 5, and the movement of the displacement end of the vertical displacement assembly 51 will drive the vertical displacement of the test probe 5, so as to adjust the positional relationship between the test probe 5 and the display screen 4. Preferably, a set of horizontal displacement assemblies 52 can be added to form a three-axis displacement mechanism with the original horizontal displacement assembly 52 and the vertical displacement assembly 51, so as to further satisfy the position calibration of the test probe 5.

[0057] As shown in Figure 4 ,Figures 6-8 As shown, the two sets of deflection suppression mechanisms 6 are identical in structure, and the deflection suppression mechanism 6 comprises a plurality of telescopic members 61 arranged uniformly in a circumferential direction, one end of the telescopic member 61 is fixedly connected to an L-shaped clasp, the L-shaped clasp is fixedly connected to the test bench 1, and the movable end of the telescopic member 61 is fixedly connected to an I-shaped block 62, wherein the I-shaped block 62 in the vertical deflection suppression mechanism 6 is slidingly connected to the annular slide 214, and the I-shaped block 62 in the horizontal deflection suppression mechanism 6 is slidingly connected to the annular slide groove 215, and a plurality of balls 63 are uniformly embedded on the I-shaped block 62.

[0058] It should be noted that in the specific embodiments of the present application, the telescopic member 61 is preferably a hydraulic cylinder in the prior art to meet the precise control of the retraction amount of the movable end of each telescopic member 61.

[0059] The use process of the LCD display screen production visual angle testing device according to the embodiments of the present application will be described below with reference to the accompanying drawings:

[0060] In the actual measurement process, the display screen 4 to be tested is connected to the clamping frame 35, the position of the test probe 5 is calibrated through the horizontal displacement assembly 52 and the vertical displacement assembly 51, the display screen 4 is rotated in the horizontal direction or the vertical direction by the horizontal rotating mechanism 2 or the vertical rotating mechanism 3, and the display screen 4 is tested in real time by the test probe 5. Since the horizontal rotating mechanism 2 bears more devices, the horizontal rotating mechanism 2 may have axial deflection during rotation. A plurality of telescopic members 61 arranged in the horizontal and vertical directions are used to maintain equal retraction strokes, respectively, to apply axial downward and radial outward tension to the rotating table 21 and the side skirt 212 of the rotating table 21, thereby suppressing the axial deflection of the rotating table 21 from the axial and radial directions. The telescopic member 61 and the rotating table 21 and the side skirt 212 are connected by the I-shaped block 62 sliding between the corresponding annular slide 214 and annular slide groove 215. In actual use, the rotating table 21 rotates, and the I-shaped block 62 and the movable end of the telescopic member 61 are fixedly connected and thus remain in position. In this way, the rotating table 21 will generate a certain tangential force when it rotates, and the balls 63 arranged on the telescopic member 61 greatly reduce the friction between the I-shaped block 62 and the rotating table 21, thereby reducing the impact of the tangential force on the telescopic member 61, while ensuring that the rotating table 21 can still rotate normally after being subjected to axial and radial tension.

[0061] In the related art, the LCD display screen production visual angle testing device reduces the influence of the tangential force on the telescopic part 61 by using the rolling contact between the ball 63 and the rotating table 21 on the I-shaped block 62. After the I-shaped block 62 is subjected to the pulling force, the load between the ball 63 and the I-shaped block 62 is relatively large. When the ball 63 rotates in the I-shaped block 62, a certain amount of heat will be generated. The existence of the accumulated heat will aggravate the wear degree of the ball 63, increase the friction between the I-shaped block 62 and the rotating table 21, affect the normal rotation of the rotating table 21, and aggravate the influence of the tangential force on the telescopic part 61, which is easy to cause the telescopic part 61 to be unstable. Once the telescopic part 61 is unstable, the axial deflection suppression effect of the rotating table 21 will be affected.

[0062] In some embodiments of the present application, as shown in Figures 8-11 The I-shaped block 62 is provided with a containing cavity 621 at one end of the annular slide 214 and the annular sliding groove 215. The containing cavity 621 is provided with an energy dissipation assembly 7. The energy dissipation assembly 7 includes a flow guide partition plate 71 and a liquid conveying part 72. The flow guide partition plate 71 is fixedly connected to the containing cavity 621 and divides the containing cavity 621 into two parts. One end of the liquid conveying part 72 is connected to the containing cavity 621, and the other end of the liquid conveying part 72 extends out of the containing cavity 621 and is connected to an external liquid supply device.

[0063] Specifically, the inside of the containing cavity 621 is provided with a plurality of embedded cabins 622. The open end of the embedded cabin 622 faces the outside of the containing cavity 621 and is used for embedding the ball 63. The ball 63 and the embedded cabin 622 are sealingly and rotatably connected. It should be noted that a horizontal sealing ring (not shown in the figure) can be additionally arranged between the ball 63 and the embedded cabin 622 to prevent liquid leakage at the embedded cabin 622.

[0064] Further, the flow guide partition plate 71 is provided with a plurality of flow guide through holes 711, and the plurality of flow guide through holes 711 correspond to the plurality of embedded cabins 622.

[0065] Further, the liquid conveying part 72 includes a liquid inlet pipe 721 and a liquid outlet pipe 722. One end of the liquid inlet pipe 721 penetrates through the flow guide partition plate 71 and is connected to the upper part of the containing cavity 621. One end of the liquid outlet pipe 722 is connected to the lower part of the containing cavity 621.

[0066] Therefore, the external liquid will enter the upper part of the containing cavity 621 from the liquid inlet pipe 721. The liquid can enter the lower part of the containing cavity 621 through the flow guide through hole 711 and return to the external liquid supply device from the liquid outlet pipe 722 to form a circulation use.

[0067] It should be noted that the embedded cabin 622 is provided with a claw-shaped through slot 73, which communicates between the side of the embedded cabin 622 embedded with the ball 63 and the accommodation cavity 621. Therefore, through the claw-shaped through slot 73, the liquid can contact the ball 63, and in the rolling process of the ball 63, the heat on the ball 63 will be carried away by the liquid, and a certain degree of lubrication effect will be achieved.

[0068] It should be noted that in the specific embodiments of the present application, the liquid can use a cooling liquid with certain lubrication and certain heat dissipation effect.

[0069] Therefore, in specific use, through the external liquid supply device, liquid is provided to the liquid inlet pipe 721 on each I-shaped block 62, the liquid enters the upper part of the accommodation cavity 621, and then enters the lower part of the accommodation cavity 621 through the flow guide through hole 711. At this time, the liquid can contact the ball 63 in each embedded cabin 622 through the claw-shaped through slot 73. With the flow of the liquid, the liquid carries away the heat on the ball 63 and lubricates between the ball 63 and the embedded cabin 622, and finally returns to the external liquid supply device from the liquid outlet pipe 722 to form a circulation use. This design first improves the rotation effect of the ball 63 in the embedded cabin 622, and secondly reduces the friction between the ball 63 and the embedded cabin 622. Because of the flow of the liquid, the heat generated by the ball 63 under pressure and rolling in the embedded cabin 622 can be carried away, prolonging the service life of the ball 63, thereby reducing the influence of the tangential force on the telescopic member 61, and ensuring the suppression effect of the telescopic member 61 on the axial deflection of the rotating table 21.

[0070] In the related art, although the ball 63 reduces the friction between the I-shaped block 62 and the rotating table 21, thereby reducing the influence of the tangential force caused by the rotating table 21 on the telescopic member 61 during rotation, but the I-shaped block 62 may be worn out during long-term use, which may cause the phenomenon of being stuck between the I-shaped block 62 and the rotating table 21, thereby seriously affecting the rotation of the rotating table 21 and causing the corresponding telescopic member 61 to be tilted or damaged.

[0071] In some embodiments of the present application, as shown in Figure 6 and Figure 7 , a plurality of spacing suppression strips 8 are uniformly arranged in the annular slide 214 and the annular slide groove 215 respectively, the plurality of spacing suppression strips 8 are arranged with the same length as the arc, and the plurality of spacing suppression strips 8 are arranged in one-to-one interval with the plurality of I-shaped blocks 62.

[0072] Among them, the two ends of the spacing suppression strip 8 slide abut between the adjacent two I-shaped blocks 62.

[0073] Specifically, the side walls of the spacing suppression strip 8 are gap-fitted with the inner walls of the annular slide 214 and the annular slide groove 215 respectively.

[0074] Therefore, in specific use, through the design of the plurality of spacing inhibiting strips 8, the plurality of I-shaped blocks 62 are forced to form a whole rotating in a ring shape, but the sliding abutment between the two ends of the spacing inhibiting strips 8 and the adjacent two I-shaped blocks 62 does not form a fixed connection between the plurality of I-shaped blocks 62, so as to affect the pulling force of each I-shaped block 62 on the rotating table 21. Thus, even if the friction between the I-shaped block 62 and the rotating table 21 increases, the plurality of spacing inhibiting strips 8 force it to continue to be in a sliding connection state with the rotating table 21. Therefore, this design reduces the phenomenon of the I-shaped block 62 and the rotating table 21 being stuck. Of course, in actual use, paste-like lubricating oil can be applied in the annular slide 214 and the annular slide groove 215 to reduce the wear of the I-shaped block 62 and the spacing inhibiting strip 8.

[0075] It should be noted that the specific model and specifications of the horizontal rotating motor 22, the gear 222, the gear ring 223, the vertical rotating motor 34, the bevel gear set 341, the display screen 4, the vertical displacement assembly 51, the horizontal displacement assembly 52, the telescopic member 61 and the ball 63 need to be determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in the art, and therefore will not be described in detail.

[0076] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A LCD display screen production visual angle testing device, comprising a testing table (1), characterized in that: a horizontal rotating mechanism (2) is arranged on the testing table (1), a vertical rotating mechanism (3) is coaxially fixed on the horizontal rotating mechanism (2), a display screen (4) is clamped on the vertical rotating mechanism (3), the horizontal rotating mechanism (2) drives the vertical rotating mechanism (3) and the display screen (4) to rotate in the horizontal direction, and the vertical rotating mechanism (3) drives the display screen (4) to rotate in the vertical direction; the horizontal rotating mechanism (2) comprises a rotating table (21), a rotating seat (211) is coaxially arranged at the bottom end of the rotating table (21), the rotating seat (211) is fixed on the testing table (1), a side skirt (212) is coaxially fixed at the bottom end of the rotating table (21), the side skirt (212) is rotationally connected to one end of the rotating seat (211) away from the testing table (1), two groups of deflection suppression mechanisms (6) are respectively arranged on the rotating table (21) and the side skirt (212), one group of the deflection suppression mechanisms (6) is arranged vertically, the other group of the deflection suppression mechanisms (6) is arranged horizontally, the vertically arranged deflection suppression mechanisms (6) are uniformly arranged on the outer side of the bottom end of the rotating table (21), the horizontally arranged deflection suppression mechanisms (6) are uniformly arranged on the outer side of the bottom end of the side skirt (212), and the two groups of deflection suppression mechanisms (6) respectively apply tension to the rotating table (21) and the side skirt (212); a testing probe (5) is further installed on the testing table (1), and the testing probe (5) is displaceable on the testing table (1); a horizontal pointer (213) is radially fixed on the upper end surface of the rotating table (21); a ring-shaped slide (214) is coaxially fixed on the lower end surface of the rotating table (21), the cross section of the ring-shaped slide (214) is in the shape of two symmetrical L shapes, the two symmetrical L shapes are not connected, and the ring-shaped slide (214) is in sliding fit with the vertically arranged deflection suppression mechanisms (6); a ring-shaped sliding groove (215) is coaxially arranged on the outer wall of the bottom of the side skirt (212), and the ring-shaped sliding groove (215) is in sliding fit with the horizontally arranged deflection suppression mechanisms (6); the two groups of deflection suppression mechanisms (6) are the same in structure, each deflection suppression mechanism (6) comprises a plurality of expansion pieces (61) arranged uniformly in the circumferential direction, one end of each expansion piece (61) is fixed on an L-shaped clasp ring, the L-shaped clasp ring is fixed on the testing table (1), the movable end of each expansion piece (61) is fixed with a I-shaped block (62), the I-shaped block (62) in the vertically arranged deflection suppression mechanism (6) is in sliding fit with the ring-shaped slide (214), the I-shaped block (62) in the horizontally arranged deflection suppression mechanism (6) is in sliding fit with the ring-shaped sliding groove (215), and a plurality of balls (63) are uniformly embedded in the I-shaped block (62). ​ ​ ​ ​ ​ ​ ​ The accommodating cavity (621) is internally provided with a plurality of embedded cabins (622), the open end of the embedded cabin (622) faces the outside of the accommodating cavity (621) and is used for embedding the ball (63), and the ball (63) and the embedded cabin (622) are sealingly rotationally connected. The flow guide baffle (71) is provided with a plurality of flow guide through holes (711), and the plurality of flow guide through holes (711) and the plurality of embedded cabins (622) one-to-one correspond. The liquid conveying element (72) comprises a liquid inlet pipe (721) and a liquid outlet pipe (722), one end of the liquid inlet pipe (721) penetrates the flow guide baffle (71) and is connected with the upper part of the accommodating cavity (621), and one end of the liquid outlet pipe (722) is connected with the lower part of the accommodating cavity (621). The embedded cabin (622) is provided with a claw-shaped through groove (73), and the claw-shaped through groove (73) is connected between the side of the embedded cabin (622) embedded with the ball (63) and the accommodating cavity (621). The annular slide (214) and the annular chute (215) are respectively and uniformly provided with a plurality of spacing suppression strips (8), the plurality of spacing suppression strips (8) are arranged in the same arc and have the same length, the plurality of spacing suppression strips (8) and the plurality of work-shaped blocks (62) are one-to-one spaced, the two ends of the spacing suppression strip (8) are in sliding abutment with the adjacent two work-shaped blocks (62), and the side walls of the spacing suppression strip (8) are respectively in gap connection with the inner walls of the annular slide (214) and the annular chute (215). The upper end surface of the test bench (1) is provided with a protective cover (11), and the protective cover (11) is provided with a movable door (12).

2. The LCD display production viewing angle testing apparatus of claim 1, wherein, The horizontal rotation mechanism (2) further comprises a horizontal rotation motor (22), the horizontal rotation motor (22) is fixedly connected to the inner top of the test bench (1), the output shaft of the horizontal rotation motor (22) is coaxially and key-connected with a driving shaft (221), one end of the driving shaft (221) rotationally extends to the upper end surface of the test bench (1) and is key-connected with a gear (222), the outer side of the gear (222) is sleeved with a gear ring (223), the gear ring (223) and the gear (222) are in meshing connection, and the gear ring (223) is coaxially fixedly connected to the rotating table (21).

3. The LCD display production viewing angle testing apparatus of claim 1, wherein, ​ 4. The apparatus of claim 1, wherein the LCD display panel is a TFT-LCD display panel. The upper end surface of the rotating table (21) is coaxially sleeved with a horizontal angle reference platform (23), and the horizontal angle reference platform (23) is fixed to the test table (1) through a plurality of circumferentially uniformly fixed feet (231) at the bottom end thereof.

5. The apparatus for testing viewing angle of LCD display panel production of claim 1, wherein, The vertical rotating mechanism (3) comprises two supports (31), two vertical angle reference platforms (32), a cross beam (33), two vertical rotating motors (34) and two clamping frames (35), the two supports (31) are symmetrically fixed to the upper end surface of the rotating table (21), the top ends of the two supports (31) are symmetrically fixed with the two vertical angle reference platforms (32), the cross beam (33) is rotationally connected to the top ends of the two supports (31), the two vertical rotating motors (34) are respectively fixed to the two supports (31) and used for driving the cross beam (33) to rotate, and the two clamping frames (35) are slidingly connected to the cross beam (33) and used for bearing the display screen (4).

6. The apparatus of claim 5, wherein the LCD display panel is a 15" LCD display panel. The vertical angle reference platform (32) is rotationally provided with two vertical pointers (321), and the two vertical pointers (321) are arranged at 180°; The two ends of the cross beam (33) are symmetrically fixed with two connecting discs (331), the two connecting discs (331) are respectively coaxially fixed with connecting shafts (332), the connecting shafts (332) are rotationally inserted into the supports (31) and coaxially fixed with the vertical pointers (321); The output shaft of the vertical rotating motor (34) is key-connected with a bevel gear set (341), and one end of the bevel gear set (341) away from the vertical rotating motor (34) is key-connected to the connecting shaft (332).

7. The apparatus for testing viewing angle of LCD display panel production of claim 2, wherein, The test probe (5) is mounted on a mobile device, the mobile device comprises a vertical displacement assembly (51) and a horizontal displacement assembly (52), the horizontal displacement assembly (52) is fixed to the inner top of the protective cover (11), the vertical displacement assembly (51) is fixed to the displacement end of the horizontal displacement assembly (52), and the test probe (5) is fixed to the displacement end of the vertical displacement assembly (51).

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