LCD display screen production visual angle testing device

Abstract

The invention provides an LCD display screen production visual angle testing device, and relates to the technical field of display screen visual angle testing. The LCD display screen production visual angle testing device comprises a testing table, a horizontal rotating mechanism is arranged on the testing table, a vertical rotating mechanism is coaxially and fixedly connected to the horizontal rotating mechanism, a display screen is clamped to the vertical rotating mechanism, two sets of deflection restraining mechanisms are arranged on a rotating table and a side skirt edge respectively, and the two sets of deflection restraining mechanisms are arranged on the rotating table and the side skirt edge respectively. One of the two groups of deflection inhibiting mechanisms is vertically arranged, and the other group of deflection inhibiting mechanisms is transversely arranged; the two groups of deflection inhibiting mechanisms respectively apply pulling force to the rotating table and the side skirt edge; the test bench is also provided with a test probe, two groups of deflection inhibition mechanisms on the bottom side of the rotating table are used to apply pulling forces in the axial direction and the radial direction respectively, the axial offset generated in the rotating process of the rotating table is corrected, and the accuracy and the efficiency of a test result are improved.

Description

Technical Field

[0001] The present application relates to the technical field of display screen viewing angle testing, and in particular to a viewing angle testing device for LCD display screen production. Background Art

[0002] In the prior art, there is a viewing angle test device for LCD display production disclosed in announcement number CN217444051U, which includes a test substrate, a mounting groove is provided on one side of the upper surface of the test substrate, a turntable is arranged in the mounting groove, the upper surface of the turntable is connected to a mounting vertical plate for fixing the display screen, the other side of the upper surface of the test substrate is connected to a spectroradiometer, a positioning ring convex is provided on the upper surface of the test substrate and located outside the mounting groove, the upper surface of the positioning ring convex is provided with scale lines, and a pointer is connected to one side of the mounting vertical plate.

[0003] This solution can determine the rotation angle more accurately by using the clear indication between the pointer and the scale line, making the data collected at different angles more accurate and reducing test errors.

[0004] Another example is the display screen production and testing device disclosed in announcement number CN106920494B, which includes a box body, an opening is provided on one side of the box body, a shielding cloth is fixedly installed on the top of 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 is facing the rear end of the box body, a vertical display screen is provided in the middle of the box body, a cross support frame is fixedly installed at the rear end of the display screen, circular grooves are provided at the four ends of the cross support frame, the grooves are communicated with the outside, a number of tooth grooves are provided on the inner wall of the groove, the several tooth grooves are evenly distributed about the center of the groove, and the tooth grooves are communicated with the grooves.

[0005] This solution does not require manual operation. When the second electromagnetic block is energized, the second electromagnetic block can be adsorbed and cooperated with the second magnetic block, so that the third gear and the fourth gear are separated, and then the display screen is rotated around the vertical axis of the cross support frame. The horizontal viewing angle of the display screen is tested by the color analyzer probe, thereby completing the test of the display screen.

[0006] However, in the above two solutions, when the display screen is rotated, it can only be guaranteed that the display screen can produce a simple rotation, and it cannot be guaranteed that the display screen will not have axial offset. Once axial offset occurs during the rotation process, it will cause errors in the test angle, resulting in a decrease in the accuracy of the test results, affecting the viewing angle test of the display screen. Summary of the invention

[0007] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a viewing angle test device for LCD display production, including a test bench, wherein a horizontal rotation mechanism is provided on the test bench, a vertical rotation mechanism is coaxially fixed to the horizontal rotation mechanism, a display screen is clamped on the vertical rotation mechanism, the horizontal rotation mechanism drives the vertical rotation mechanism and the display screen to rotate in the horizontal direction, and the vertical rotation mechanism drives the display screen to rotate in the vertical direction; the horizontal rotation mechanism includes a rotating table, a rotating seat is coaxially provided at the bottom end of the rotating table, the rotating seat is fixed to the test bench, a side skirt is coaxially fixed to the bottom end of the rotating table, and the side skirt is fixed to the test bench. At one end of the rotating seat away from the test bench, two groups of sway suppression mechanisms are respectively arranged on the rotating table and the side skirt, one of the two groups of sway suppression mechanisms is arranged vertically, and the other group of the two groups of sway suppression mechanisms is arranged horizontally, the vertically arranged sway suppression mechanisms are evenly arranged on the outer side of the bottom end of the rotating table in a circumferential direction, and the horizontally arranged sway suppression mechanisms are evenly arranged on the outer side of the bottom end of the side skirt in a circumferential direction, and the two groups of sway suppression mechanisms apply tension to the rotating table and the side skirt respectively; a test probe is also installed on the test bench, and the test probe is displaceable on the test bench.

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

[0009] Preferably, a horizontal pointer is radially fixed to the upper end surface of the rotating table; an annular slide is coaxially fixed to the lower end surface of the rotating table, the cross-section of the annular slide is two symmetrical L-shapes, the two symmetrical L-shapes are not connected, and the annular slide is slidably matched with the vertical deflection suppression mechanism.

[0010] Preferably, an annular slide groove is coaxially arranged at the bottom of the outer wall of the side skirt, and the annular slide groove is slidably matched with the transverse deflection suppression mechanism.

[0011] Preferably, the horizontal rotation mechanism also includes a horizontal rotation motor, which is fixed to the inner top of the test bench, and the output shaft of the horizontal rotation motor is coaxially keyed to a drive shaft, one end of the drive shaft rotates and extends to the upper end surface of the test bench and is keyed to a gear, a gear ring is provided on the outer side of the gear, the gear ring is meshed with the gear, and the gear ring is coaxially fixed to the rotating table.

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

[0013] Preferably, the vertical rotation mechanism includes two brackets, two vertical angle reference platforms, a beam, two vertical rotation motors and two clamping frames, the two brackets are symmetrically fixed to the upper end surface of the rotating table, the tops of the two brackets are symmetrically fixed to the two vertical angle reference platforms, the beam is rotatably connected to the tops of the two brackets, the two vertical rotation motors are respectively fixed to the two brackets and used to drive the beam to rotate, and the two clamping frames are slidably connected to the beam and used to support the display screen.

[0014] Preferably, the vertical angle reference platform is rotated to be provided with two vertical pointers, and the two vertical pointers are arranged at 180°; Two connecting plates are symmetrically fixedly connected at both ends of the crossbeam, and connecting shafts are coaxially fixedly connected to the two connecting plates respectively. The connecting shafts are rotatably plugged into the bracket and coaxially fixedly connected to the vertical pointer; A bevel gear set is keyed to the output shaft of the vertical rotating motor, and one end of the bevel gear set away from the vertical rotating motor is keyed to the connecting shaft.

[0015] Preferably, the test probe is installed on a mobile device, and the mobile device includes a vertical displacement component and a lateral displacement component, the lateral displacement component is fixedly connected to the inner top of the protective cover, the vertical displacement component is fixedly connected to the displacement end of the lateral displacement component, and the test probe is fixedly connected to the displacement end of the vertical displacement component.

[0016] Preferably, the two groups of the deflection suppression mechanisms have the same structure, the deflection suppression mechanism comprises a plurality of telescopic parts evenly arranged in the circumferential direction, one end of the telescopic part is fixedly connected to an L-shaped clamping ring, the L-shaped clamping ring is fixedly connected to the test bench, the movable end of the telescopic part is fixedly connected to an I-shaped block, wherein the I-shaped block in the vertical deflection suppression mechanism is slidably engaged in the annular slideway, and the I-shaped block in the horizontal deflection suppression mechanism is slidably engaged in the annular slideway, and a plurality of balls are evenly embedded in the I-shaped block.

[0017] The beneficial effects of the present invention are: 1. Use the horizontal rotation mechanism to drive the display screen to rotate in the horizontal direction, and use the vertical rotation mechanism to drive the display screen to rotate in the vertical direction. Use the test probe to monitor the display screen in different rotation states in real time to complete the test work. The horizontal angle reference platform and the vertical angle reference platform play a reference role to improve the accuracy of the rotation angle; 2. Use two sets of deflection suppression mechanisms on the bottom side of the rotating table to apply tension in the axial and radial directions respectively to correct the axial offset of the rotating table during rotation, improve the stability of the rotating table, improve the accuracy and efficiency of the test results, and avoid the deviation of the test angle caused by the axial offset of the rotating table during rotation, which will affect the test results; 3. Use the ball bearings to reduce the friction between the I-shaped block and the rotating table, reduce the tangential force between the two sets of yaw suppression mechanisms caused by the rotation of the rotating table, and ensure the stability of the yaw suppression mechanism.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of a viewing angle test device for LCD display production according to an embodiment of the present application; Figure 2 It is a partial structural schematic diagram of a viewing angle test device for LCD display production according to an embodiment of the present application; Figure 3 is a schematic diagram of the installation structure of the test probe according to an embodiment of the present application; Figure 4 is a partial structural schematic diagram of a horizontal rotation mechanism, a vertical rotation mechanism and two sets of yaw suppression mechanisms according to an embodiment of the present application; Figure 5 According to the embodiment of the present application Figure 4 A is an enlarged schematic diagram; Figure 6 is a partial structural exploded diagram of a horizontal rotation mechanism and two sets of yaw suppression mechanisms according to an embodiment of the present application; Figure 7 is a partial structural exploded diagram of the yaw suppression mechanism and the spacing suppression strip according to an embodiment of the present application; Figure 8 is a structural schematic diagram of a sway suppression mechanism according to an embodiment of the present application; Fig. 9 The partial structure diagram of the energy dissipation component according to the embodiment of the present application is shown in FIG. Figure 1 ; Fig.10 The partial structure diagram of the energy dissipation component according to the embodiment of the present application is shown in FIG. Figure 2 ; Fig.11 It is a schematic diagram of the bottom view structure of the claw-shaped through groove according to an embodiment of the present application.

[0021] Icons: 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; 22. Horizontal rotation motor; 221. Drive shaft; 222. Gear; 223. Gear ring; 23. Horizontal angle reference platform; 231. Support foot; 3. Vertical rotation mechanism; 31. Bracket; 32. Vertical angle reference platform; 321. Vertical pointer; 33. Beam; 331. Connector Receiving plate; 332, connecting shaft; 34, vertical rotating motor; 341, bevel gear set; 35, snap-on bracket; 4, display screen; 5, test probe; 51, vertical displacement assembly; 52, lateral displacement assembly; 6, deflection suppression mechanism; 61, telescopic member; 62, I-shaped block; 621, accommodating chamber; 622, embedded cabin; 63, ball bearing; 7, energy dissipation assembly; 71, guide baffle; 711, guide flow hole; 72, liquid conveying member; 721, liquid inlet pipe; 722, liquid outlet pipe; 73, claw-shaped through groove; 8, spacing suppression strip. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0023] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] Embodiment 1, as Figure 1-Figure 11 As shown, a viewing angle test device for LCD display production according to an embodiment of the present application includes a test bench 1, wherein a horizontal rotation mechanism 2 is provided on the test bench 1, a vertical rotation mechanism 3 is coaxially fixedly connected to the horizontal rotation mechanism 2, a display screen 4 is clamped on the vertical rotation mechanism 3, the horizontal rotation mechanism 2 drives the vertical rotation mechanism 3 and the display screen 4 to rotate in the horizontal direction, and the vertical rotation mechanism 3 drives the display screen 4 to rotate in the vertical direction, and a test probe 5 is also installed on the test bench 1, and the test probe 5 is displaceable on the test bench 1.

[0025] It should be noted that in a specific embodiment of the present application, the test probe 5 may be a multi-angle photometer for measuring the brightness and chromaticity values ​​of the display screen 4 at different viewing angles. The specific test principle is prior art and will not be elaborated herein.

[0026] like Figure 2 , Figure 4 and Figure 6 As shown, the horizontal rotation mechanism 2 includes a rotating table 21, a rotating seat 211 is coaxially arranged at the bottom end of the rotating table 21, and the rotating seat 211 is fixedly connected to the test table 1. A side skirt 212 is coaxially fixedly connected to the bottom end of the rotating table 21, and the side skirt 212 is fixedly connected to the end of the rotating seat 211 away from the test table 1. Two groups of sway suppression mechanisms 6 are respectively arranged on the rotating table 21 and the side skirt 212, one of the two groups of sway suppression mechanisms 6 is vertically arranged, and the other group of the two groups of sway suppression mechanisms 6 is horizontally arranged. The vertically arranged sway suppression mechanisms 6 are uniformly arranged on the outer side of the bottom end of the rotating table 21 in the circumferential direction, and the horizontally arranged sway suppression mechanisms 6 are uniformly arranged on the outer side of the bottom end of the side skirt 212 in the circumferential direction. The two groups of sway suppression mechanisms 6 apply tension to the rotating table 21 and the side skirt 212 respectively, so as to apply tension to the rotating table 21 from the axial and radial directions to ensure the stability of the rotating table 21 during the rotation process and avoid axial deviation during the rotation process to affect the accuracy of the test results.

[0027] Specifically, Figure 1 and Figure 2 As shown, a protective cover 11 is provided on the upper end surface of the test bench 1, and a movable door 12 is provided on the protective cover 11. It should be noted that the protective cover 11 is preferably made of a light-isolating material and has a built-in light source. It can be understood that the protective cover 11 provides uniform and stable lighting for the test environment, reduces the impact of ambient light on the test results, and ensures the consistency and comparability of the test results.

[0028] like Figure 4 , Figure 6 and Figure 7 As shown, a horizontal pointer 213 is radially fixed to the upper end surface of the rotating table 21; an annular slide 214 is coaxially fixed to the lower end surface of the rotating table 21, and the cross-section of the annular slide 214 is two symmetrical L-shapes, which are not connected to each other, and the annular slide 214 and the vertical deflection suppression mechanism 6 are slidably matched.

[0029] Among them, an annular sliding groove 215 is coaxially arranged at the bottom of the outer wall of the side skirt 212, and the annular sliding groove 215 and the lateral deflection suppression mechanism 6 are slidably matched.

[0030] like Figure 4 and Figure 6As shown, the horizontal rotation mechanism 2 also includes a horizontal rotation motor 22, which is fixedly connected to the inner top of the test bench 1. The output shaft of the horizontal rotation motor 22 is coaxially keyed to a drive shaft 221. One end of the drive shaft 221 is rotated to extend to the upper end surface of the test bench 1 and is keyed to a gear 222. A gear ring 223 is sleeved on the outer side of the gear 222. The gear ring 223 is meshed with the gear 222, and the gear ring 223 is coaxially fixed to the rotating table 21. It can be seen that when the horizontal rotation motor 22 is started, it will drive the drive shaft 221 to rotate, and then drive the gear 222 to rotate. By utilizing the gear ring 223 meshing with the gear 222 and the rotating table 21 fixedly connected to the gear ring 223, the rotating table 21 can be rotated on the rotating seat 211 through the rotating gear 222. In this way, the vertical rotation mechanism 3 and the display screen 4 on the rotating table 21 will rotate in the horizontal direction.

[0031] Furthermore, a horizontal angle reference platform 23 is coaxially sleeved on the upper end surface of the rotating table 21 , and the horizontal angle reference platform 23 is fixed to the test table 1 through a plurality of legs 231 uniformly fixed in the circumferential direction at the bottom end thereof.

[0032] It can be seen from this that the specific angle of rotation of the display screen 4 in the horizontal direction can be known by using the indication change of the horizontal pointer 213 on the horizontal angle reference platform 23.

[0033] It should be noted that the horizontal angle reference platform 23 is circumferentially set with an angle value of 360°.

[0034] like Figure 4 and Figure 5 As shown, the vertical rotation mechanism 3 includes two brackets 31, two vertical angle reference platforms 32, a 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 tops of the two brackets 31 are symmetrically fixed to the two vertical angle reference platforms 32, the beam 33 is rotatably connected to the tops 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 beam 33 to rotate, and the two clamping frames 35 are slidably connected to the beam 33 and are used to carry the display screen 4.

[0035] It should be noted that the two ends of the clamping frame 35 are elastically retractable, and the two clamping frames 35 are slidably arranged on the crossbeam 33 to adapt to LCD displays of different sizes.

[0036] Specifically, the vertical angle reference platform 32 is rotatably provided with two vertical pointers 321, and the two vertical pointers 321 are set at 180°; it should be noted that the angles on the two vertical angle reference platforms 32 are set at 180° to avoid the vertical angle reference platform 32 from blocking the display screen 4 and affecting the test of the display screen 4 by the test probe 5. At the same time, the two vertical pointers 321 are set at 180°. 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.

[0037] Specifically, two connecting plates 331 are symmetrically fixed at both ends of the crossbeam 33, and connecting shafts 332 are coaxially fixed to the two connecting plates 331 respectively. The connecting shafts 332 are rotatably inserted into the bracket 31 and coaxially fixed to the vertical pointer 321; a bevel gear set 341 is keyed to the output shaft of the vertical rotation motor 34, and one end of the bevel gear set 341 away from the vertical rotation motor 34 is keyed to the connecting shaft 332.

[0038] It should be noted that the bevel gear set 341 is composed of two bevel gears that are meshed with each other at an angle of 90 degrees.

[0039] It can be seen that when the vertical rotation motor 34 drives the connecting shaft 332 to rotate through the bevel gear set 341, the crossbeam 33, the clamping frame 35, the display screen 4 and the vertical pointer 321 can be rotated together.

[0040] like Figure 2 and Figure 3 As shown, the test probe 5 is installed on the mobile device, and the mobile device includes a vertical displacement component 51 and a lateral displacement component 52. The lateral displacement component 52 is fixedly connected to the inner top of the protective cover 11, the vertical displacement component 51 is fixedly connected to the displacement end of the lateral displacement component 52, and the test probe 5 is fixedly connected to the displacement end of the vertical displacement component 51.

[0041] It can be seen that the movement of the displacement end of the lateral displacement component 52 will drive the vertical displacement component 51 and the test probe 5 to undergo lateral displacement, and the movement of the displacement end of the vertical displacement component 51 will drive the test probe 5 to undergo vertical displacement, so that the test probe 5 can adjust the positional relationship between itself and the display screen 4. Preferably, an additional set of lateral displacement components 52 can be provided to form a three-axis displacement mechanism between the original lateral displacement components 52 and the vertical displacement components 51, so as to further meet the position calibration of the test probe 5.

[0042] like Figure 4 , Figure 6-Figure 8As shown, the structures of the two groups of deflection suppression mechanisms 6 are the same. The deflection suppression mechanism 6 includes a plurality of telescopic members 61 uniformly arranged in the circumferential direction. One end of the telescopic member 61 is fixedly connected to an L-shaped clamping ring, and the L-shaped clamping ring is fixedly connected to the test bench 1. 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 slidably engaged in the annular slide 214, and the I-shaped block 62 in the horizontal deflection suppression mechanism 6 is slidably engaged in the annular slide groove 215, and a plurality of balls 63 are uniformly embedded on the I-shaped block 62.

[0043] It should be noted that, in the specific embodiment of the present application, the telescopic member 61 is preferably a hydraulic cylinder in the prior art to ensure precise control of the retraction amount of the active end of each telescopic member 61 .

[0044] The following describes the use process of an LCD display production viewing angle test device according to an embodiment of the present application with reference to the accompanying drawings: During the actual measurement process, the display screen 4 to be tested is clamped on the clamping frame 35, and the position of the test probe 5 is calibrated by the lateral displacement component 52 and the vertical displacement component 51. The display screen 4 is driven to rotate in the horizontal direction or the vertical direction by the horizontal rotation mechanism 2 or the vertical rotation mechanism 3, and the display screen 4 is tested in real time by the test probe 5. Since the horizontal rotation mechanism 2 carries more devices, the horizontal rotation mechanism 2 may have axial deflection during the rotation process. A plurality of telescopic members 61 arranged horizontally and vertically are used to maintain equal retraction strokes, and axial downward and radial outward pulling forces are applied to the rotating table 21 and the side skirt 212 of the rotating table 21, so as to axially The axial and radial deflections of the rotating table 21 are suppressed, and the telescopic member 61, the rotating table 21 and the side skirt 212 are connected by sliding between the corresponding annular slideways 214 and the annular slide grooves 215 through the I-shaped block 62. When actually used, the rotating table 21 rotates, and the I-shaped block 62 and the movable end of the telescopic member 61 are fixedly connected so as to keep the position unchanged. In this way, when the rotating table 21 rotates, a certain tangential force will be brought to the telescopic member 61. The ball 63 arranged on the telescopic member 61 can greatly reduce the friction between the I-shaped block 62 and the rotating table 21, reduce the influence of the tangential force on the telescopic member 61, and at the same time ensure that the rotating table 21 can rotate normally after being subjected to axial and radial tension.

[0045] In the related art, in order to reduce the influence of tangential force on the telescopic member 61, a ball 63 on the I-shaped block 62 and the rotating table 21 are in contact by rolling. After the I-shaped block 62 is subjected to tension, 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 at this time, a certain amount of heat will be generated. The existence of accumulated heat will aggravate the wear 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 at the same time aggravate the influence of tangential force on the telescopic member 61, which may easily cause the telescopic member 61 to be unstable. Once the telescopic member 61 is unstable, it will affect the axial deflection suppression effect of the rotating table 21.

[0046] Embodiment 2, according to some embodiments of the present application, such as Figure 8-Figure 11 As shown, an accommodating chamber 621 is provided at one end of the I-shaped block 62 sliding on the annular slide 214 and the annular slide groove 215, and an energy dissipation component 7 is provided in the accommodating chamber 621. The energy dissipation component 7 includes a guide baffle 71 and a liquid conveying member 72. The guide baffle 71 is fixedly connected to the accommodating chamber 621 and divides the accommodating chamber 621 into two upper and lower parts. One end of the liquid conveying member 72 is connected to the accommodating chamber 621, and the other end of the liquid conveying member 72 extends out of the accommodating chamber 621 and is connected to an external liquid supply device.

[0047] Specifically, a plurality of embedded chambers 622 are provided inside the accommodating cavity 621. The open end of the embedded chamber 622 faces the outside of the accommodating cavity 621 and is used to embed the ball 63. The ball 63 and the embedded chamber 622 are sealed and rotated together. It should be noted that a horizontal sealing ring (not shown in the figure) can be added between the ball 63 and the embedded chamber 622 to ensure that there is no leakage at the embedded chamber 622.

[0048] Furthermore, a plurality of flow-guiding holes 711 are provided on the flow-guiding baffle 71 , and the plurality of flow-guiding holes 711 correspond to the plurality of embedded compartments 622 one by one.

[0049] Furthermore, the liquid conveying member 72 includes a liquid inlet pipe 721 and a liquid outlet pipe 722 . One end of the liquid inlet pipe 721 passes through the guide baffle 71 and is connected to the upper part of the accommodating chamber 621 , and one end of the liquid outlet pipe 722 is connected to the lower part of the accommodating chamber 621 .

[0050] It can be seen that the external liquid will enter the upper part of the accommodating chamber 621 from the liquid inlet pipe 721, the liquid can enter the lower part of the accommodating chamber 621 through the diversion hole 711, and return to the external liquid supply device from the liquid outlet pipe 722 to be circulated.

[0051] It should be noted that a claw-shaped through groove 73 is provided on the embedded chamber 622, and the claw-shaped through groove 73 connects the side of the embedded chamber 622 where the ball 63 is embedded and the accommodating chamber 621. It can be seen that the liquid can contact the ball 63 through the claw-shaped through groove 73, and the heat on the ball 63 will be carried away by the liquid during the rolling process, and a certain degree of lubrication effect will be achieved.

[0052] It should be noted that, in the specific embodiment of the present application, the liquid may be a coolant with certain lubrication and heat dissipation effects.

[0053] Therefore, when in use, liquid is supplied to the liquid inlet pipe 721 on each I-shaped block 62 through an external liquid supply device, and the liquid enters the upper part of the accommodating chamber 621 and enters the lower part of the accommodating chamber 621 through the guide hole 711. At this time, the liquid can contact the ball 63 in each embedded chamber 622 through the claw-shaped through groove 73. As the liquid flows, the liquid takes away the heat on the ball 63 and lubricates the space between the ball 63 and the embedded chamber 622, and finally flows out from the liquid outlet pipe 72 2 is returned to the external liquid supply device for recycling. This design firstly improves the rotation effect of the ball 63 in the embedded chamber 622, and secondly reduces the friction between the ball 63 and the embedded chamber 622. Due to the flow of liquid, the accumulated heat formed when the ball 63 is pressed and rolls in the embedded chamber 622 can be taken away, thereby extending the service life of the ball 63, and then reducing the influence of the tangential force on the telescopic member 61, and ensuring the telescopic member 61 The effect of suppressing the axial deflection of the rotating table 21.

[0054] In the related art, in the viewing angle test device for producing an LCD display screen, 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 brought by the rotating table 21 on the telescopic member 61 during the rotation process, once the I-shaped block 62 is worn out during long-term use, it may get stuck with the rotating table 21, which will seriously affect the rotation of the rotating table 21 and cause the corresponding telescopic member 61 to topple over or be damaged.

[0055] Embodiment 3, according to some embodiments of the present application, such as Figure 6 and Figure 7 As shown, a plurality of spacing suppression bars 8 are evenly slidably arranged in the annular slideway 214 and the annular slide groove 215, the plurality of spacing suppression bars 8 are arranged with the same arc and the same length, and the plurality of spacing suppression bars 8 and the plurality of I-shaped blocks 62 are arranged one by one at intervals.

[0056] The two ends of the spacing suppression strip 8 are in sliding contact with two adjacent I-shaped blocks 62 .

[0057] Specifically, the side walls of the spacing suppression strip 8 are respectively matched with the inner walls of the annular slideway 214 and the annular slide groove 215 in a clearance.

[0058] Therefore, during specific use, through the design of multiple spacing suppression strips 8, multiple I-shaped blocks 62 will be evenly distributed in the corresponding annular slideway 214 and annular groove 215. The spacing suppression strips 8 force the originally independent multiple I-shaped blocks 62 to form an annular rotating whole. However, due to the sliding contact between the two ends of the spacing suppression strip 8 and the two adjacent I-shaped blocks 62, the multiple I-shaped blocks 62 will not be fixedly connected, thereby affecting the pulling force applied by each I-shaped block 62 to the rotating table 21 individually. In this way, even if the friction between a certain I-shaped block 62 and the rotating table 21 increases, the design of the multiple spacing suppression strips 8 will force it to continue to maintain a sliding connection with the rotating table 21. Therefore, this design reduces the phenomenon of jamming between the I-shaped block 62 and the rotating table 21. Of course, during actual use, paste lubricating oil can be applied to the annular slideway 214 and the annular groove 215 to reduce the wear of the I-shaped block 62 and the spacing suppression strip 8.

[0059] It should be noted that the specific models and specifications of the horizontal rotation motor 22, gear 222, gear ring 223, vertical rotation motor 34, bevel gear set 341, display screen 4, vertical displacement assembly 51, lateral displacement assembly 52, telescopic member 61 and ball 63 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0060] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A viewing angle test device for LCD display production, comprising a test bench (1), characterized in that: The test bench (1) is provided with a horizontal rotation mechanism (2), a vertical rotation mechanism (3) is coaxially fixedly connected to the horizontal rotation mechanism (2), a display screen (4) is clamped on the vertical rotation mechanism (3), the horizontal rotation mechanism (2) drives the vertical rotation mechanism (3) and the display screen (4) to rotate in a horizontal direction, and the vertical rotation mechanism (3) drives the display screen (4) to rotate in a vertical direction; The horizontal rotation 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 fixedly connected to the test table (1), a side skirt (212) is coaxially fixedly connected to the bottom end of the rotating table (21), the side skirt (212) is fixedly connected to an end of the rotating seat (211) away from the test table (1), and two sets of deflection suppression mechanisms (6) are respectively arranged on the rotating table (21) and the side skirt (212). , one of the two groups of the deflection suppression mechanisms (6) is arranged vertically, and the other of the two groups of the deflection suppression mechanisms (6) is arranged horizontally, the vertically arranged deflection suppression mechanisms (6) are evenly arranged circumferentially on the outer side of the bottom end of the rotating table (21), and the horizontally arranged deflection suppression mechanisms (6) are evenly arranged circumferentially on the outer side of the bottom end of the side skirt (212), and the two groups of the deflection suppression mechanisms (6) apply tension to the rotating table (21) and the side skirt (212) respectively; A test probe (5) is also installed on the test bench (1), and the test probe (5) is displaceable on the test bench (1).

2. The LCD display production viewing angle test device according to claim 1, characterized in that: 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).

3. The LCD display production viewing angle test device according to claim 1, characterized in that: A horizontal pointer (213) is radially fixed to the upper end surface of the rotating table (21); An annular slideway (214) is coaxially fixedly connected to the lower end surface of the rotating platform (21), the cross section of the annular slideway (214) being two symmetrical L-shapes, the two symmetrical L-shapes being not connected, and the annular slideway (214) and the vertical deflection suppression mechanism (6) being slidably matched.

4. The LCD display production viewing angle test device according to claim 3, characterized in that: An annular sliding groove (215) is coaxially arranged at the bottom of the outer wall of the side skirt (212), and the annular sliding groove (215) is slidably matched with the lateral deflection suppression mechanism (6).

5. The LCD display production viewing angle test device according to claim 1, characterized in that: The horizontal rotation mechanism (2) further comprises a horizontal rotation motor (22), the horizontal rotation motor (22) being fixedly connected to the inner top of the test bench (1), the output shaft of the horizontal rotation motor (22) being coaxially keyed to a drive shaft (221), one end of the drive shaft (221) being rotatably extended to the upper end surface of the test bench (1) and being keyed to a gear (222), a gear ring (223) being sleeved on the outer side of the gear (222), the gear ring (223) being meshed with the gear (222), and the gear ring (223) being coaxially fixedly connected to the rotating table (21).

6. The LCD display production viewing angle test device according to claim 1, characterized in that: A horizontal angle reference platform (23) is coaxially sleeved on the upper end surface of the rotating platform (21), and the horizontal angle reference platform (23) is fixed to the test platform (1) via a plurality of supporting legs (231) uniformly fixed in the circumferential direction at the bottom end thereof.

7. The LCD display production viewing angle test device according to claim 1, characterized in that: The vertical rotation mechanism (3) comprises two brackets (31), two vertical angle reference platforms (32), a crossbeam (33), two vertical rotation motors (34) and two clamping frames (35), wherein the two brackets (31) are symmetrically fixed to the upper end surface of the rotating platform (21), the top ends of the two brackets (31) are symmetrically fixed to the two vertical angle reference platforms (32), the crossbeam (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 crossbeam (33) to rotate, and the two clamping frames (35) are slidably connected to the crossbeam (33) and are used to carry the display screen (4).

8. The LCD display production viewing angle test device according to claim 7, characterized in that: The vertical angle reference platform (32) is rotatably provided with two vertical pointers (321), and the two vertical pointers (321) are arranged at 180 degrees; Two connecting plates (331) are symmetrically fixedly connected at both ends of the crossbeam (33), and connecting shafts (332) are coaxially fixedly connected to the two connecting plates (331). The connecting shafts (332) are rotatably plugged into the bracket (31) and coaxially fixedly connected to the vertical pointer (321); A bevel gear set (341) is keyed onto the output shaft of the vertical rotation motor (34), and one end of the bevel gear set (341) away from the vertical rotation motor (34) is keyed to the connecting shaft (332).

9. The LCD display production viewing angle test device according to claim 2, characterized in that: The test probe (5) is installed on a mobile device, the mobile device comprising a vertical displacement component (51) and a lateral displacement component (52), the lateral displacement component (52) being fixedly connected to the inner top of the protective cover (11), the vertical displacement component (51) being fixedly connected to the displacement end of the lateral displacement component (52), and the test probe (5) being fixedly connected to the displacement end of the vertical displacement component (51).

10. The LCD display production viewing angle test device according to claim 4, characterized in that: The two groups of the deflection suppression mechanisms (6) have the same structure. The deflection suppression mechanisms (6) include a plurality of telescopic members (61) uniformly arranged in the circumferential direction. One end of the telescopic member (61) is fixedly connected to an L-shaped clamping ring, and the L-shaped clamping ring is fixedly connected to the test bench (1). 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 slidably clamped in the annular slideway (214), and the I-shaped block (62) in the horizontal deflection suppression mechanism (6) is slidably clamped in the annular slideway (215), and a plurality of balls (63) are uniformly embedded in the I-shaped block (62).

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