Display module detection equipment

Abstract

The utility model relates to the field of display module detection, and particularly discloses a display module detection device which comprises a machine table. The loading jig is used for loading and lightening the display module; the transferring mechanism comprises a linear driving module used for driving the loading jig to move in the X-axis direction, the Y-axis direction and the Z-axis direction relative to the machine table. The first visual detection module is used for acquiring position information of the display module in the X-axis direction and the Y-axis direction; the second visual detection module is used for detecting the imaging quality of the display module; the first angle adjusting module is used for adjusting the deflection angle of the second visual detection module relative to the machine table in the Rx-axis direction, the Ry-axis direction and the Rz-axis direction. In the display module detection equipment provided by the utility model, the transfer mechanism can accurately align the display module to the preset position below the second visual detection module, so that the second visual detection module can effectively detect the imaging quality of the display module.

Description

Technical Field

[0001] The utility model relates to the field of display module detection, in particular to a display module detection device. Background Art

[0002] The display module used in VR equipment includes a display screen, lens components and other related accessories. When manufacturing the display module, its imaging quality needs to be tested. When testing the imaging quality of the display module, the contrast, brightness, color accuracy, eccentricity and other parameters of the display module are generally tested, and whether the display module has ghosting, distortion and other faults.

[0003] In the prior art, when testing the imaging quality of the display module, the display module is first loaded on the loading jig and the display module is turned on to display the picture. Then, the visual inspection module located above the loading jig takes a picture of the picture displayed by the display module and sends the obtained picture information to the processing unit. The processing unit analyzes the imaging quality of the display module based on the received picture information. In order to ensure that the visual inspection module can clearly and accurately obtain the picture displayed by the display module, it is necessary to ensure that the display module is in a preset position relative to the visual inspection module, so that the optical axis of the display module and the optical axis of the visual inspection module can coincide and the visual inspection module can accurately focus on the picture displayed by the display module.

[0004] Since there is inevitably a gap between the display module and the loading jig, when the display module is fixed on the loading jig, the actual position of the display module cannot be calculated based on the position of the loading jig, and due to manufacturing and assembly errors, the actual position of the visual inspection module will not be in the ideal designed position. In this way, it is difficult to accurately align the display module to the preset position below the visual inspection module, and the visual inspection module cannot clearly and accurately obtain the image displayed by the display module, which affects the effect of detecting the imaging quality of the display module. Utility Model Content

[0005] The utility model aims to provide a display module detection device which can accurately align a display module to a preset position.

[0006] To achieve the above-mentioned purpose, the utility model proposes a display module detection device, comprising:

[0007] Machine;

[0008] Loading fixture, used to load and light up the display module;

[0009] A transfer mechanism connecting the machine platform and the loading fixture, comprising a linear drive module for driving the loading fixture to move relative to the machine platform along the X-axis direction, the Y-axis direction and the Z-axis direction;

[0010] The first visual detection module is used to obtain the position information of the display module in the X-axis direction and the Y-axis direction;

[0011] The second visual inspection module is used to inspect the imaging quality of the display module;

[0012] A first angle adjustment module connected to the platform and the second visual inspection module, used to adjust the deflection angle of the second visual inspection module relative to the platform along the Rx axis direction, the Ry axis direction and the Rz axis direction;

[0013] The first visual inspection module and the second visual inspection module are both located on the same side of the loading fixture in the Z-axis direction.

[0014] As a further improvement of the present invention, the first angle adjustment module includes a first connecting plate connected to the second visual inspection module, a second connecting plate connected to the machine, a universal connector connecting the first connecting plate and the second connecting plate, and a plurality of adjusting members arranged between the first connecting plate and the second connecting plate, wherein the plurality of adjusting members are used to adjust and limit the deflection angle of the first connecting plate relative to the second connecting plate in the Rx-axis direction, the Ry-axis direction and the Rz-axis direction.

[0015] As a further improvement of the present invention, the multiple adjusting members include two first adjusting members and two second adjusting members, the first adjusting members and the second adjusting members each include a fixed portion fixed relative to the first connecting plate, and a telescopic portion fixed relative to the second connecting plate, the telescopic portion of the first adjusting member is adjustably arranged relative to its fixed portion along the X-axis direction, and the telescopic portion of the second adjusting member is adjustably arranged relative to its fixed portion along the Z-axis direction; the first connecting plate has a center point, and when the first connecting plate rotates relative to the second connecting plate along the Rx-axis direction, the Ry-axis direction and the Rz-axis direction, the position of the center point remains unchanged, the two first adjusting members are respectively located on both sides of the center point in the Y-axis direction and are spaced apart from the center point in the Z-axis direction, and the two second adjusting members are respectively located on both sides of the center point in the Y-axis direction.

[0016] As a further improvement of the present invention, the display module detection device also includes a height detection module for obtaining the position information of the display module in the Z-axis direction, and the first visual detection module, the height detection module and the second visual detection module are all located on the same side of the loading fixture in the Z-axis direction.

[0017] As a further improvement of the present invention, the first visual detection module, the height detection module, and the second visual detection module are arranged in sequence along the Y-axis direction.

[0018] As a further improvement of the present invention, the height detection module is connected to the machine platform through the first angle adjustment module.

[0019] As a further improvement of the present invention, the transfer mechanism also includes a second angle adjustment module combined with the linear drive module, and the second angle adjustment module is used to adjust the deflection angle of the loading fixture relative to the machine along the Rx axis direction, the Ry axis direction and the Rz axis direction.

[0020] As a further improvement of the present invention, the machine includes a frame, an air flotation device connected to the frame, a carrying platform arranged on the air flotation device, and a bracket fixed to the carrying platform. The transfer mechanism, the first visual inspection module, the height detection module and the second visual inspection module are all connected to the bracket.

[0021] As a further improvement of the present invention, the display module detection equipment also includes a protective cover connected to the machine platform, the machine platform and the protective cover enclose a working space, the loading jig, the transfer mechanism, the first visual inspection module, the height detection module and the second visual inspection module are all located in the working space, and the display module detection equipment also includes an air purification unit connected to the protective cover for purifying the air in the working space.

[0022] As a further improvement of the present invention, the shield includes a shield body, a window opened on the shield body to connect the working space with the outside of the shield, a door body for opening and closing the window, and a pair of safety detection elements connected to the shield body and respectively located on opposite sides of the window, wherein the pair of safety detection elements are used to detect whether an object extends into the working space through the window.

[0023] Beneficial effects of the utility model:

[0024] The display module detection equipment provided by the utility model has a first visual detection module for obtaining position information of the display module in the X-axis direction and the Y-axis direction, and the deflection angle of the second visual detection module relative to the machine in the Rx-axis direction, the Ry-axis direction and the Rz-axis direction can be adjusted. The transfer mechanism drives the loading fixture to move according to the above-mentioned position information, so that the optical axis of the display module and the optical axis of the second visual detection module can coincide. In this way, the second visual detection module can clearly and accurately obtain the picture displayed by the display module, so as to effectively detect the imaging quality of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A front view of a display module detection device provided by an embodiment of the utility model after removing the protective cover and the air purification unit;

[0026] Figure 2 for Figure 1 Schematic diagram of the structure in the upper middle part;

[0027] Figure 3 for Figure 1 A side view of a portion of the structure of the display module detection equipment;

[0028] Figure 4 for Figure 2 A schematic diagram of the three-dimensional structure of the height detection module, the second visual detection module and the first angle adjustment module;

[0029] Figure 5 for Figure 2 Another three-dimensional structural schematic diagram of the height detection module, the second visual detection module and the first angle adjustment module;

[0030] Figure 6 for Figure 2 A side view of the second visual detection module and the first angle adjustment module;

[0031] Figure 7 A front view of a display module detection device provided in one embodiment of the utility model.

[0032] In the figure:

[0033] 100. Display module testing equipment;

[0034] 10. Machine platform; 11. Frame; 12. Air flotation device; 13. Loading platform;

[0035] 20. Loading fixture;

[0036] 30. Transfer mechanism; 31. Linear drive module; 311. X-axis drive module; 312. Y-axis drive module; 313. Z-axis drive module; 32. Second angle adjustment module;

[0037] 41. First visual inspection module; 42. Height inspection module; 43. Second visual inspection module;

[0038] 50. Bracket;

[0039] 60. First angle adjustment module; 61. First connecting plate; 62. Second connecting plate; 63. Universal connector; 64. Adjustment member; 641. First adjustment member; 642. Second adjustment member; 643. Fixed portion; 644. Telescopic portion;

[0040] 70. Shield; 71. Shield body; 72. Window; 73. Door; 74. Safety detection element;

[0041] 80. Air purification unit;

[0042] 90. Display module. DETAILED DESCRIPTION

[0043] The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. However, the embodiments do not limit the present invention, and any changes in mechanism, method, or function made by a person skilled in the art based on the embodiments are all within the protection scope of the present invention.

[0044] The terms used herein, such as "upper", "lower", "left", "right", "front", "back", etc., which indicate relative spatial positions, are used for the purpose of convenience to describe the relationship between one feature and another feature as shown in the accompanying drawings. It is understood that, depending on the placement of the product, the terms of relative spatial positions may be intended to include different orientations other than those shown in the drawings, and should not be construed as limitations on the claims. In addition, the descriptor "horizontal" used herein is not completely equivalent to being perpendicular to the direction of gravity, and a certain angle of inclination is allowed.

[0045] like Figure 1 As shown in FIG. 7 , an embodiment of the present utility model provides a display module detection device 100, which is suitable for detecting the imaging quality of a display module 90. The display module 90 is a display module 90 on a VR device, and may also be a display module on other devices.

[0046] For ease of explanation, Figure 1 , 3 The coordinate systems in 4-5 indicate the X-axis direction, Y-axis direction, and Z-axis direction of the display module detection device 100, as well as the Rx-axis direction rotating around the X-axis direction, the Ry-axis direction rotating around the Y-axis direction, and the Rz-axis direction rotating around the Z-axis direction. The X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other.

[0047] The display module inspection device 100 includes a machine platform 10 , a loading fixture 20 , a transfer mechanism 30 , a first visual inspection module 41 , a height inspection module 42 , and a second visual inspection module 43 .

[0048] The loading jig 20 is used to load and light up the display module 90. The display module 90 can be manually loaded on the loading jig 20. The loading jig 20 may include conductive parts such as probes connected to a power source. When the display module 90 is loaded on the loading jig 20, the conductive parts such as probes can contact the display module 90 to supply power to the display module 90 so that the display module 90 can display the image.

[0049] The first visual inspection module 41, the height inspection module 42 and the second visual inspection module 43 are all located on the same side of the loading fixture 20 in the Z-axis direction. In this article, the positions of the first visual inspection module 41, the height inspection module 42 and the second visual inspection module 43 are set as the upper side, and the position of the loading fixture 20 is set as the lower side.

[0050] The transfer mechanism 30 connects the machine platform 10 and the loading fixture 20, and includes a linear drive module 31 for driving the loading fixture 20 to move relative to the machine platform 10 along the X-axis direction, the Y-axis direction and the Z-axis direction. The transfer mechanism 30 drives the loading fixture 20 to move along the X-axis direction and / or the Y-axis direction, and can move the loading fixture 20 to below the first visual inspection module 41, the height detection module 42 and the second visual inspection module 43 respectively, so that the first visual inspection module 41 can obtain the position information of the display module 90 in the X-axis direction and the Y-axis direction, the height detection module 42 can obtain the position information of the display module 90 in the Z-axis direction, and the second visual inspection module 43 can detect the imaging quality of the display module 90.

[0051] In this embodiment, the display module detection device 100 further includes a first angle adjustment module 60 connected to the machine 10 and the second visual detection module 43. By adjusting the first angle adjustment module 60, the deflection angle of the second visual detection module 43 relative to the machine 10 can be adjusted along the Rx axis direction, the Ry axis direction, and the Rz axis direction. If the second visual detection module 43 is directly connected to the machine 10, due to manufacturing and assembly errors, the actual position of the second visual detection module 43 will not be in the ideal position in the design. In this embodiment, the machine 10 and the second visual detection module 43 are indirectly connected through the first angle adjustment module 60. By adjusting the first angle adjustment module 60, the deflection angle of the second visual detection module 43 relative to the machine 10 can be adjusted along the Rx axis direction, the Ry axis direction, and the Rz axis direction, and the actual position of the second visual detection module 43 is adjusted to a better position so that the optical axis of the second visual detection module 43 can coincide with the optical axis of the display module 90.

[0052] When the second visual inspection module 43 inspects the imaging quality of the display module 90, the display module 90 should be positioned at a preset position below the second visual inspection module 43. When the display module 90 is positioned at the preset position, the optical axis of the display module 90 coincides with the optical axis of the second visual inspection module 43, and the second visual inspection module 43 can accurately focus on the picture displayed by the display module 90. In this way, the second visual inspection module 43 can clearly and accurately obtain the image of the picture displayed by the display module 90.

[0053] When the display module detection device 100 is in use, the operator first loads the display module 90 on the loading fixture 20. Then, when the transfer mechanism 30 moves the loading fixture 20 to the bottom of the first visual inspection module 41, the first visual inspection module 41 captures the image of the display module 90 and transmits the image to the processing unit of the display module detection device 100. The processing unit calculates the actual position of the display module 90 and the distance between the actual position and the preset position in the X-axis direction and the Y-axis direction based on the image obtained by the first visual inspection module 41. Afterwards, the transfer mechanism 30 drives the loading fixture 20 to move the corresponding distance along the X-axis direction and the Y-axis direction to the bottom of the second visual inspection module 43 according to the distance between the actual position of the display module 90 and the preset position in the X-axis direction and the Y-axis direction, so that the display module 90 is aligned in the X-axis direction and the Y-axis direction. At this time, the optical axis of the display module 90 coincides with the optical axis of the second visual inspection module 43.

[0054] When the transfer mechanism 30 moves the loading fixture 20 to the bottom of the height detection module 42, the height detection module 42 can detect the actual position of the display module 90 in the Z-axis direction and send the position information to the processing unit. The processing unit calculates the distance between the actual position of the display module 90 and the preset position in the Z-axis direction based on the received actual position information of the display module 90 in the Z-axis direction. Then, the transfer mechanism 30 drives the loading fixture 20 to move a corresponding distance in the Z-axis direction based on the distance between the actual position of the display module 90 and the preset position in the Z-axis direction, so that the display module 90 is aligned in the Z-axis direction. In this embodiment, the height detection module 42 is a laser distance sensor.

[0055] In this embodiment, the transfer mechanism 30 first moves the loading jig 20 to the bottom of the first visual inspection module 41. When the transfer mechanism 30 drives the loading jig 20 to move from the bottom of the first visual inspection module 41 to the bottom of the second visual module according to the distance between the actual position of the display module 90 and the preset position in the X-axis direction and the Y-axis direction, the loading jig 20 will stay under the height detection module 42, and after the height detection module 42 obtains the actual position information of the display module 90 in the Z-axis direction, it will continue to drive the loading jig 20 to move to the bottom of the second visual inspection module 43. It can be imagined that the transfer mechanism 30 can also first move the loading jig 20 to the bottom of the height detection module 42, and after the height detection module 42 obtains the actual position information of the display module 90 in the Z-axis direction so that the display module 90 can be aligned in the Z-axis direction, the loading jig 20 is moved to the bottom of the first visual inspection module 41 so that the display module 90 can be aligned in the X-axis direction and the Y-axis direction.

[0056] Specifically, the processing unit calculates the actual position of the optical axis of the display module 90 based on the image of the display module 90 obtained by the first visual detection module 41. Because when the display module 90 is in the preset position, its optical axis coincides with the optical axis of the second visual detection module 43, therefore, the distance between the actual position of the display module 90 and the preset position in the X-axis direction and the Y-axis direction should be understood as the distance between the actual position of the optical axis of the display module 90 and the position of the optical axis of the second visual detection module 43 in the X-axis direction and the Y-axis direction. The optical axis of the display module 90 is invisible, so a marking point corresponding to the position of its optical axis can be opened on the display module, and the processing unit can indirectly calculate the actual position of the optical axis of the display module 90 based on the position of the marking point.

[0057] When the display module 90 is aligned to the preset position, the second visual inspection module 43 captures the image displayed by the display module 90 and transmits the image to the processing unit. The processing unit analyzes the imaging quality of the display module 90 based on the image information of the display module 90 captured by the second visual inspection module 43.

[0058] Specifically, the first angle adjustment module 60 includes a first connecting plate 61 connected to the second visual inspection module 43, a second connecting plate 62 connected to the machine 10, a universal connector 63 connecting the first connecting plate 61 and the second connecting plate 62, and a plurality of adjustment members 64 arranged between the first connecting plate 61 and the second connecting plate 62. The plurality of adjustment members 64 can adjust and limit the deflection angle of the first connecting plate 61 relative to the second connecting plate 62 in the Rx-axis direction, the Ry-axis direction and the Rz-axis direction. In this way, by adjusting the plurality of adjustment members 64, the deflection angle of the second visual inspection module 43 relative to the machine 10 can be adjusted along the Rx-axis direction, the Ry-axis direction and the Rz-axis direction.

[0059] The universal connector 63 is a ball hinge, a universal joint or other connectors, and it is only necessary to enable the first connecting plate 61 to rotate relative to the second connecting plate 62 along the Rx axis direction, the Ry axis direction and the Rz axis direction.

[0060] As a preferred solution of this embodiment, the plurality of adjusting members 64 include two first adjusting members 641 and two second adjusting members 642. The first adjusting member 641 and the second adjusting member 642 each include a fixed portion 643 fixedly arranged relative to the first connecting plate 61 and a telescopic portion 644 fixedly arranged relative to the second connecting plate 62. The telescopic portion 644 of the first adjusting member 641 is adjustable relative to its fixed portion 643 along the X-axis direction, and the telescopic portion 644 of the second adjusting member 642 is adjustable relative to its fixed portion 643 along the Z-axis direction.

[0061] The first connecting plate 61 has a center point. When the first connecting plate 61 rotates relative to the second connecting plate 62 along the Rx axis direction, the Ry axis direction and the Rz axis direction, the position of the center point remains unchanged. The two first adjusting members 641 are respectively located on both sides of the center point in the Y axis direction and are spaced apart from the center point in the Z axis direction. The two second adjusting members 642 are respectively located on both sides of the center point in the Y axis direction.

[0062] It can be seen that by adjusting the adjusting member 64, the telescopic portion 644 can be telescoped relative to the fixed portion 643. In this article, extending the telescopic portion 644 of the first adjusting member 641 relative to its fixed portion 643 along the X-axis direction is referred to as elongation of the first adjusting member 641, and retracting the telescopic portion 644 of the first adjusting member 641 relative to its fixed portion 643 along the X-axis direction is referred to as shortening of the first adjusting member 641, extending the telescopic portion 644 of the second adjusting member 642 relative to its fixed portion 643 along the Z-axis direction is referred to as elongation of the second adjusting member 642, and retracting the telescopic portion 644 of the second adjusting member 642 relative to its fixed portion 643 along the Z-axis direction is referred to as shortening of the second adjusting member 642.

[0063] By adjusting the two first adjusting members 641, so that one first adjusting member 641 is extended and the other first adjusting member 641 is shortened, the deflection angle of the first connecting plate 61 relative to the second connecting plate 62 can be adjusted along the Rz axis direction; by adjusting the two second adjusting members 642, so that one second adjusting member 642 is extended and the other second adjusting member 642 is shortened, the deflection angle of the first connecting plate 61 relative to the second connecting plate 62 can be adjusted along the Rx axis direction; by adjusting the two first adjusting members 641 and the two second adjusting members, so that both the two first adjusting members 641 are extended and both the two second adjusting members 642 are shortened, or so that both the two first adjusting members 641 are shortened and both the two second adjusting members 642 are extended, the deflection angle of the first connecting plate 61 relative to the second connecting plate 62 can be adjusted along the y axis. It can be seen that by adjusting the two first adjusting members 641 and the two second adjusting members, the deflection angle of the first connecting plate 61 relative to the second connecting plate 62 can be adjusted along the Rx axis direction, the Ry axis direction and the Rz axis direction.

[0064] It can be imagined that the arrangement of multiple adjustment members 64 is not limited to this. For example, when the first angle adjustment module 60 of this embodiment is flipped 90° along the Rx axis direction, so that the telescopic parts 644 of the two second adjustment members 642 are adjustably arranged relative to their fixed parts 643 along the Y axis direction, the first angle adjustment module 60 can be adjusted. Similarly, the deflection angle of the second visual inspection module 43 relative to the machine 10 can be adjusted along the Rx axis direction, the Ry axis direction and the Rz axis direction.

[0065] In this embodiment, the first visual inspection module 41, the height detection module 42, and the second visual inspection module 43 are arranged in sequence along the Y-axis direction, and the transfer mechanism 30 drives the loading fixture 20 to move along the Y-axis direction, so that the display module 90 can be located in sequence below the first visual inspection module 41, the height detection module 42, and the second visual inspection module 43. The movable stroke of the transfer mechanism 30 along the Y-axis direction should be greater than the movable stroke along the X-axis direction and the movable stroke along the Z-axis direction. It can be imagined that because the transfer mechanism 30 can drive the loading fixture 20 to move along the X-axis direction and the Y-axis direction, the first visual inspection module 41, the height detection module 42, and the second visual inspection module 43 can also be arranged in other ways along the X-axis direction and / or the Y-axis direction, such as the positions of the first visual inspection module 41 and the height detection module 42 can be interchanged, and the first visual inspection module 41, the height detection module 42, and the second visual inspection module 43 can also be arranged in sequence along the X-axis direction, which is not limited here.

[0066] The transfer mechanism 30 also includes a second angle adjustment module 32 combined with the linear drive module 31. By adjusting the second angle adjustment module 32, the deflection angle of the loading fixture 20 relative to the machine table 10 can be adjusted along the Rx axis direction, the Ry axis direction and the Rz axis direction to eliminate the angular offset of the loading fixture 20 relative to the machine table 10 in the Rx axis direction, the Ry axis direction and the Rz axis direction, so that the optical axis of the display module 90 can coincide with the optical axis of the second visual detection module 43.

[0067] In this embodiment, the linear drive module 31 includes an X-axis drive module 311, a Y-axis drive module 312 and a Z-axis drive module 313 that are combined together, wherein the Y-axis drive module 312 is fixed to the machine table 10, the X-axis drive module 311 is fixed to the output end of the Y-axis drive module 312, the Z-axis drive module 313 is fixed to the output end of the X-axis drive module 311, the second angle adjustment module 32 is fixed to the output end of the Z-axis drive module 313, and the loading fixture 20 is connected to the second angle adjustment module 32.

[0068] In other embodiments, the X-axis drive module 311, the Y-axis drive module 312, the Z-axis drive module 313 and the second angle adjustment module 32 may also be in other combination relationships, as long as the transfer mechanism 30 can drive the device fixture to move along the X-axis direction, the Y-axis direction and the Z-axis direction, and drive the loading fixture 20 to rotate along the Rx-axis direction, the Ry-axis direction and the Rz-axis direction, and no limitation is made here.

[0069] In this embodiment, the height detection module 42 is connected to the machine 10 through the first angle adjustment module 60. Thus, by adjusting the first angle adjustment module 60, the deflection angle of the height detection module 42 relative to the machine 10 can be adjusted along the Rx axis direction, the Ry axis direction, and the Rz axis direction.

[0070] The machine 10 includes a frame 11, an air flotation device 12 connected to the frame 11, a carrying platform 13 arranged on the air flotation device 12, a bracket 50 fixed to the carrying platform 13, a transfer mechanism 30, a first visual inspection module 41, a height inspection module 42 and a second visual inspection module 43 are all connected to the bracket 50, and the air flotation device 12 can isolate the carrying platform 13 from the vibration of the external environment to ensure the accuracy and stability of the display module inspection device 100. The carrying platform 13 is preferably made of marble material with good stability.

[0071] The display module detection equipment 100 also includes a protective cover 70 connected to the machine platform 10. The machine platform 10 and the protective cover 70 enclose a working space. The loading fixture 20, the transfer mechanism 30, the first visual inspection module 41, the height detection module 42 and the second visual inspection module 43 are all located in the working space. The display module detection equipment 100 also includes an air purification unit 80 connected to the protective cover 70. The air purification unit 80 can purify the air in the working space to prevent dust from being contaminated on the display module 90 or the first visual inspection module 41, the second visual inspection module 43 and other components, thereby affecting the detection accuracy of the display module 90.

[0072] The shield 70 includes a shield body 71, a window 72 opened on the shield body 71 to connect the working space and the outside of the shield 70, a door body 73 for opening and closing the window 72, and a pair of safety detection elements 74 connected to the shield body 71 and respectively located on opposite sides of the window 72. When the door body 73 is opened, the operator's arm can be extended into the working space to load the display module 90 on the loading fixture 20, or to remove the display module 90 from the loading fixture 20. When the door body 73 is closed, the display module detection device 100 detects the display module 90. The pair of safety detection elements 74 is used to detect whether there is an object (usually the operator's arm) extending into the working space through the window 72. When it is detected that the operator's arm extends into the working space through the window 72, the display module detection device 100 should stop detecting the display module 90 to avoid causing a safety accident or affecting the detection effect. In this embodiment, the safety detection element 74 is a beam grating.

[0073] To summarize, the display module detection device 100 provided by the utility model has a first visual detection module 41 for obtaining position information of the display module 90 in the X-axis direction and the Y-axis direction, and a height detection module 42 for obtaining position information of the display module 90 in the Z-axis direction. The transfer mechanism 30 can drive the loading fixture 20 to move according to the above position information, and accurately align the display module 90 to the preset position below the second visual detection module 43, so that the second visual detection module 43 can clearly and accurately obtain the picture displayed by the display module 90, so as to effectively detect the imaging quality of the display module 90.

[0074] It should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0075] The above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person skilled in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A display module detection device, characterized in that: include: Machine; Loading fixture, used to load and light up the display module; A transfer mechanism connecting the machine platform and the loading fixture, comprising a linear drive module for driving the loading fixture to move relative to the machine platform along the X-axis direction, the Y-axis direction and the Z-axis direction; The first visual detection module is used to obtain the position information of the display module in the X-axis direction and the Y-axis direction; The second visual inspection module is used to inspect the imaging quality of the display module; A first angle adjustment module connected to the platform and the second visual inspection module, used to adjust the deflection angle of the second visual inspection module relative to the platform along the Rx axis direction, the Ry axis direction and the Rz axis direction; The first visual inspection module and the second visual inspection module are both located on the same side of the loading fixture in the Z-axis direction.

2. The display module detection device according to claim 1, characterized in that: The first angle adjustment module includes a first connecting plate connected to the second visual inspection module, a second connecting plate connected to the machine, a universal connecting member connecting the first connecting plate and the second connecting plate, and a plurality of adjusting members arranged between the first connecting plate and the second connecting plate, wherein the plurality of adjusting members are used to adjust and limit the deflection angle of the first connecting plate relative to the second connecting plate in the Rx axis direction, the Ry axis direction and the Rz axis direction.

3. The display module detection device according to claim 2, characterized in that: The multiple adjusting members include two first adjusting members and two second adjusting members, the first adjusting members and the second adjusting members each include a fixed portion fixedly arranged relative to the first connecting plate, and a telescopic portion fixedly arranged relative to the second connecting plate, the telescopic portion of the first adjusting member is adjustably arranged relative to its fixed portion along the X-axis direction, and the telescopic portion of the second adjusting member is adjustably arranged relative to its fixed portion along the Z-axis direction; the first connecting plate has a center point, and when the first connecting plate rotates relative to the second connecting plate along the Rx-axis direction, the Ry-axis direction and the Rz-axis direction, the position of the center point remains unchanged, the two first adjusting members are respectively located on both sides of the center point in the Y-axis direction and are spaced apart from the center point in the Z-axis direction, and the two second adjusting members are respectively located on both sides of the center point in the Y-axis direction.

4. The display module detection device according to any one of claims 1 to 3, characterized in that: The display module detection device also includes a height detection module for obtaining position information of the display module in the Z-axis direction, and the first visual detection module, the height detection module and the second visual detection module are all located on the same side of the loading fixture in the Z-axis direction.

5. The display module detection device according to claim 4, characterized in that: The first visual detection module, the height detection module, and the second visual detection module are arranged in sequence along the Y-axis direction.

6. The display module detection device according to claim 4, characterized in that: The height detection module is connected to the machine platform through the first angle adjustment module.

7. The display module detection device according to claim 1, characterized in that: The transfer mechanism also includes a second angle adjustment module combined with the linear drive module, and the second angle adjustment module is used to adjust the deflection angle of the loading fixture relative to the machine platform along the Rx axis direction, the Ry axis direction and the Rz axis direction.

8. The display module detection device according to claim 4, characterized in that: The machine includes a frame, an air flotation device connected to the frame, a carrying platform arranged on the air flotation device, and a bracket fixed to the carrying platform. The transfer mechanism, the first visual inspection module, the height inspection module and the second visual inspection module are all connected to the bracket.

9. The display module detection device according to claim 4, characterized in that: The display module detection equipment also includes a protective cover connected to the machine platform, the machine platform and the protective cover enclose a working space, the loading jig, the transfer mechanism, the first visual inspection module, the height detection module and the second visual inspection module are all located in the working space, and the display module detection equipment also includes an air purification unit connected to the protective cover for purifying the air in the working space.

10. The display module detection device according to claim 9, characterized in that: The shield includes a shield body, a window opened on the shield body to connect the working space with the outside of the shield, a door body for opening and closing the window, and a pair of safety detection elements connected to the shield body and located on opposite sides of the window, wherein the pair of safety detection elements are used to detect whether there is an object extending into the working space through the window.

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