Test stage and lighting device

Abstract

The utility model provides a test carrying table and a lighting device, and the test carrying table comprises a carrying table which is used for placing a to-be-tested workpiece; the backlight source is arranged below the bearing table; the winding mechanism is arranged on at least one side of the bearing table, and shading cloth is wound on the winding mechanism; the driving mechanism is connected with the free end of the shading cloth and drives the shading cloth to stretch out to the position above the bearing table so as to at least partially cover light emitted by the backlight source. According to the test carrying table provided by the invention, the driving mechanism can drive the shading cloth to extend to the upper part of the carrying table, and when the to-be-tested workpiece is placed on the carrying table, the area which is not covered by the to-be-tested workpiece can be shielded by the shading cloth, so that a backlight source can be prevented from being emitted from the area which is not covered by the to-be-tested workpiece, and the detection quality is improved; and the influence on the product detection effect due to the emission of redundant light is avoided. And the overall structure is simpler and more compact, and the overall height of the test platform deck can be reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of display panel processing, and more specifically, to a test platform and a lighting device. Background Art

[0002] During the production process of display panels, it is necessary to perform a lighting test on the display panels. The display panels are placed on a test platform with a backlight source at the bottom. After the position of the display panel is detected by a camera, the display panel is powered on and lit by a lighting crimping mechanism to detect whether there are any defects in the display panel.

[0003] In order to improve the compatibility of the equipment, the test platform in the related technology is usually configured to be compatible with display panels of different sizes. However, when the display panel is placed on the test platform, some areas will not be covered by the display panel, resulting in excess light from the backlight source being emitted, affecting the product inspection effect. Utility Model Content

[0004] The embodiment of the present application provides a test platform that can improve detection quality and has a compact structure.

[0005] The technical solution adopted in the embodiment of the present application is: to provide a test platform, including:

[0006] The loading platform is used to place the workpiece to be tested;

[0007] A backlight source is disposed below the supporting platform;

[0008] a winding mechanism, disposed on at least one side of the supporting platform, on which a shading cloth is wound; and

[0009] The driving mechanism is arranged at an adjacent side of the winding mechanism, and the driving mechanism is connected to the free end of the shading cloth to drive the shading cloth to extend above the supporting platform to at least partially cover the light emitted by the backlight source.

[0010] Further, the winding mechanism includes a first winding assembly, and the first winding assembly is arranged on at least one side of the supporting platform along the first direction;

[0011] The driving mechanism comprises a first driving component, the first driving component is arranged on at least one side of the carrying platform along a second direction, the first direction is perpendicular to the height direction of the carrying platform, and the first direction is arranged at an angle to the second direction;

[0012] The first driving assembly is connected to the free end of the shading cloth on the first winding assembly, driving the shading cloth to extend above the supporting platform along the first direction to at least partially cover the light emitted by the backlight source along the first direction.

[0013] Furthermore, the first driving component includes:

[0014] A first screw transmission module is arranged on at least one side of the supporting platform along the second direction;

[0015] A first driving member is drivingly connected to the first screw drive module; and

[0016] The first connecting seat is connected to the free end of the shading cloth on the first winding assembly, and the first screw transmission module is connected to the first connecting seat to drive the first connecting seat to move along the first direction when the first screw transmission module rotates.

[0017] Furthermore, the test platform also includes a first guide assembly, which includes a first guide rail and a first slider slidably mounted on the first guide rail. The first guide rail is arranged on one side of the support platform along the second direction, and the first connecting seat is connected to the first slider.

[0018] Furthermore, the first winding assembly includes two groups, and the two groups of the first winding assemblies are respectively arranged on opposite sides of the supporting platform along the first direction. The first driving assembly is respectively connected to the free ends of the shading cloths on the two groups of the first winding assemblies, and the first driving assembly drives the shading cloths on the two groups of the first winding assemblies to approach or move away from each other along the first direction.

[0019] Further, the winding mechanism includes a second winding assembly, and the second winding assembly is arranged on at least one side of the supporting platform along the second direction;

[0020] The driving mechanism comprises a second driving assembly, the second driving assembly is arranged on at least one side of the carrying platform along a first direction, the first direction is perpendicular to the height direction of the carrying platform, and the first direction is arranged at an angle to the second direction;

[0021] The second driving assembly is connected to the free end of the shading cloth on the second winding assembly, driving the shading cloth to extend above the supporting platform along the second direction to at least partially cover the light emitted by the backlight source along the second direction.

[0022] Furthermore, the second driving component includes:

[0023] A second screw transmission module is arranged on at least one side of the supporting platform along the first direction;

[0024] A second driving member is drivingly connected to the second screw drive module; and

[0025] The second connecting seat is connected to the free end of the shading cloth on the second winding assembly, and the second screw drive module is connected to the second connecting seat to drive the second connecting seat to move along the second direction when the second screw drive module rotates.

[0026] Furthermore, the test platform also includes a second guide assembly, which includes a second guide rail and a second slider slidably mounted on the second guide rail. The second guide rail is arranged on one side of the support platform along the first direction, and the second connecting seat is connected to the second slider.

[0027] Furthermore, the winding mechanism includes a first winding assembly and a second winding assembly, the first winding assembly is arranged on at least one side of the carrying platform along the first direction; the second winding assembly is arranged on at least one side of the carrying platform along the second direction;

[0028] The driving mechanism comprises a first driving component and a second driving component, the first driving component is arranged on at least one side of the carrying platform along the second direction, and the first driving component is located outside the second winding component, the second driving component is arranged on at least one side of the carrying platform along the first direction, and the second driving component is located outside the first winding component, the first direction is perpendicular to the height direction of the carrying platform, and the first direction and the second direction are arranged at an angle;

[0029] The first driving assembly is connected to the free end of the shading cloth on the first winding assembly, driving the shading cloth to extend above the supporting platform along the first direction to at least partially cover the light emitted by the backlight source along the first direction;

[0030] The second driving assembly is connected to the free end of the shading cloth on the second winding assembly, driving the shading cloth to extend above the supporting platform along the second direction to at least partially cover the light emitted by the backlight source along the second direction.

[0031] The embodiment of the present application further provides a lighting device, comprising a lighting crimping mechanism and the test platform as described above, wherein the lighting crimping mechanism detects a workpiece to be tested on the test platform.

[0032] The beneficial effect of the test platform provided by the embodiment of the present application is that: the test platform of the embodiment of the present application is provided with a backlight source disposed below the platform, a winding mechanism disposed on at least one side of the platform, a shading cloth is wound on the winding mechanism, and a driving mechanism is provided in cooperation. Since the driving mechanism is connected to the free end of the shading cloth, the shading cloth can be driven to extend above the platform. When the workpiece to be tested is placed on the platform, the area not covered by the workpiece to be tested can be shielded by the shading cloth, thereby preventing the backlight source from being emitted from the area not covered by the workpiece to be tested, thereby improving the detection quality, preventing the emission of excess light and affecting the product detection effect, and making the test platform of the embodiment of the present application applicable to the detection of products of different sizes. And by arranging the winding mechanism on at least one side of the platform, the overall structure is made simpler and more compact, which is conducive to reducing the overall height of the test platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 A schematic diagram of the three-dimensional structure of a test platform provided in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of the three-dimensional structure of the test platform provided in an embodiment of the present application after omitting the protective cover;

[0036] Figure 3 A schematic diagram of the three-dimensional structure of a lighting device provided in an embodiment of the present application.

[0037] Among them, the reference numerals in the figure are:

[0038] 100. Test platform; 10. Carrying platform; 20. Backlight source; 30. Winding mechanism; 31. Shading cloth; 32. First winding assembly; 33. Second winding assembly; 40. Driving mechanism; 41. First driving assembly; 411. First screw transmission module; 412. First driving member; 413. First connecting seat; 42. Second driving assembly; 421. Second screw transmission module; 422. Second driving member; 423. Second connecting seat; 50. First guide assembly; 51. First guide rail; 52. First slider; 60. Second guide assembly; 61. Second guide rail; 62. Second slider; 70. Protective cover; 71. Avoidance groove; 200. Workpiece to be tested; 300. Lighting crimping mechanism. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] See also Figure 2 , the test platform 100 provided in the embodiment of the present application is now described. The test platform 100 provided in the embodiment of the present application includes a carrier 10, a backlight source 20, a winding mechanism 30 and a driving mechanism 40. The carrier 10 places a workpiece 200 to be tested. The workpiece 200 to be tested can be a workpiece such as a display panel. The backlight source 20 is arranged below the carrier 10, and can provide illumination when the workpiece 200 to be tested is tested.

[0044] The winding mechanism 30 is disposed on at least one side of the carrier 10, and a shading cloth 31 is wound on the winding mechanism 30. The "winding mechanism 30 is disposed on at least one side of the carrier 10" means that the winding mechanism 30 can be disposed on any one side or multiple sides of the carrier 10 as needed.

[0045] The driving mechanism 40 is connected to the free end of the shading cloth 31, driving the shading cloth 31 to extend above the supporting platform 10 to at least partially cover the light emitted by the backlight source 20. The driving mechanism 40 drives the shading cloth 31 to extend above the supporting platform 10 to at least partially cover the light emitted by the backlight source 20, thereby covering excess light and avoiding affecting the detection effect.

[0046] When it is necessary to inspect the workpiece 200 to be tested, the workpiece 200 to be tested is first placed on the supporting platform 10, and according to the size of the workpiece 200 to be tested, the shading cloth 31 on the winding mechanism 30 is controlled by the driving mechanism 40 to extend to the top of the supporting platform 10, so as to at least partially cover the light emitted by the backlight source 20, or the shading cloth 31 is retracted to avoid covering the light emitted by the backlight source 20.

[0047] The test platform 100 provided in the embodiment of the present application is provided with a backlight source 20 disposed below the carrier 10, a winding mechanism 30 disposed on at least one side of the carrier 10, a shading cloth 31 is wound on the winding mechanism 30, and a driving mechanism 40 is provided in cooperation. Since the driving mechanism 40 is connected to the free end of the shading cloth 31, the shading cloth 31 can be driven to extend above the carrier 10. When the workpiece to be tested is placed on the carrier 10, the area not covered by the workpiece to be tested 200 can be shielded by the shading cloth 31, thereby preventing the backlight source 20 from being emitted from the area not covered by the workpiece to be tested 200, thereby improving the detection quality, preventing the emission of excess light and affecting the product detection effect, and making the test platform 100 of the embodiment of the present application applicable to the detection of products of different sizes. And by arranging the winding mechanism 30 on at least one side of the carrier 10, the overall structure is simpler and more compact, which is conducive to reducing the overall height of the test platform 100.

[0048] See also Figure 2 The winding mechanism 30 may include a first winding assembly 32, which is disposed on at least one side of the carrier 10 along the first direction. The driving mechanism 40 may include a first driving assembly 41, which is disposed on at least one side of the carrier 10 along the second direction, the first direction is perpendicular to the height direction of the carrier 10, and the first direction and the second direction are set at an angle. The first direction may be the length direction of the carrier 10, and the second direction may be the width direction of the carrier 10. Specifically, the first direction and the second direction are set at 90°. Please refer to Figure 1 , and the “first direction” is Figure 1 The X-axis direction in the “second direction” is Figure 1 The Y-axis direction in the “height direction of the carrier 10” is Figure 1 The Z-axis direction.

[0049] The first driving assembly 41 is connected to the free end of the shading cloth 31 on the first winding assembly 32, driving the shading cloth 31 to extend above the carrier 10 along the first direction to at least partially cover the light emitted by the backlight source 20 along the first direction. By setting the first winding assembly 32 and the first driving assembly 41, the light emitted by the backlight source 20 can be at least partially covered along the first direction. When the lengths of the workpieces 200 to be tested are inconsistent, the distance that the shading cloth 31 extends along the first direction can be adjusted, so that the test carrier 100 of the embodiment of the present application can be suitable for workpieces 200 to be tested with different lengths.

[0050] See also Figure 2 , the first drive assembly 41 may include a first screw transmission module 411, a first drive member 412 and a first connection seat 413. The first screw transmission module 411 is arranged on at least one side of the carrier 10 along the second direction. The first drive member 412 is connected to the first screw transmission module 411 in transmission connection. The first connection seat 413 is connected to the free end of the shading cloth 31 on the first winding assembly 32, and the first screw transmission module 411 is connected to the first connection seat 413 to drive the first connection seat 413 to move along the first direction when the first screw transmission module 411 rotates. When it is necessary to drive the shading cloth 31 to move along the first direction to cover the light of the backlight source 20 along the first direction, the first screw transmission module 411 is first driven to rotate by the first drive member 412, and then the first connection seat 413 is driven to move along the first direction, so that the shading cloth 31 moves along the first direction. Specifically, the first drive member 412 can be a motor or a rotary cylinder. The first screw transmission module 411 converts the rotational driving force of the motor into the linear motion of the first connecting seat 413 , and the transmission accuracy is relatively high.

[0051] See also Figure 2 The first screw transmission module 411 and the first driving member 412 can be provided in two, and the two first screw transmission modules 411 are respectively provided on opposite sides of the carrier 10 along the second direction, and the first connecting seat 413 is provided across the carrier 10, and one end is connected to one of the first screw transmission modules 411, and the other end is connected to the other first screw transmission module 411. By providing two sets of the first screw transmission modules 411 and the first driving member 412, the movement of the first connecting seat 413 can be made more stable and avoid deviation.

[0052] See also Figure 2The test platform 100 may further include a first guide assembly 50, the first guide assembly 50 including a first guide rail 51 and a first slider 52 slidably mounted on the first guide rail 51. The first guide rail 51 is disposed on one side of the carrier 10 along the second direction, and the first connecting seat 413 is connected to the first slider 52. Through the cooperation between the first guide rail 51 and the first slider 52, the operation of the first connecting seat 413 is more precise and avoids deviation. Specifically, the first guide assembly 50 may include two groups, and the two groups of first guide assemblies 50 are respectively disposed on opposite sides of the carrier 10 along the second direction, one end of the first connecting seat 413 is connected to one group of the first guide assemblies 50, and the other end of the first connecting seat 413 is connected to the other group of the first guide assemblies 50.

[0053] See also Figure 2 The first winding assembly 32 may include two groups, and the two groups of first winding assemblies 32 are respectively arranged on opposite sides of the support platform 10 along the first direction. The first driving assembly 41 is respectively connected to the free ends of the shade cloths 31 on the two groups of first winding assemblies 32, and the first driving assembly 41 drives the shade cloths 31 on the two groups of first winding assemblies 32 to move closer to each other or away from each other along the first direction. The first driving assembly 41 synchronously drives the shade cloths 31 on the two groups of first winding assemblies 32 to move closer to each other or away from each other along the first direction, thereby improving the covering efficiency and reducing the cost. It can be understood that in other embodiments of the present application, two different first driving assemblies 41 can also be provided to respectively drive the shade cloths 31 on the two groups of first winding assemblies 32 to move along the first direction.

[0054] See also Figure 2 The winding mechanism 30 may include a second winding assembly 33, which is disposed on at least one side of the carrier 10 along the second direction. The driving mechanism 40 may include a second driving assembly 42, which is disposed on at least one side of the carrier 10 along the first direction, wherein the first direction is perpendicular to the height direction of the carrier 10, and the first direction is disposed at an angle to the second direction.

[0055] The second driving assembly 42 is connected to the free end of the shading cloth 31 on the second winding assembly 33, driving the shading cloth 31 to extend in the second direction to cover the light emitted by the backlight source 20 in the second direction. By setting the second winding assembly 33 and the second driving assembly 42, the light emitted by the backlight source 20 can be at least partially covered in the second direction. When the width dimensions of the workpiece 200 to be tested are inconsistent, the distance that the shading cloth 31 extends in the second direction can be adjusted, so that the test platform 100 of the embodiment of the present application can be suitable for workpieces 200 to be tested with different width dimensions.

[0056] See also Figure 2The second drive assembly 42 includes a second screw transmission module 421, a second drive member 422 and a second connection seat 423. The second screw transmission module 421 is arranged on at least one side of the carrier 10 along the first direction. The second drive member 422 is connected to the second screw transmission module 421 in transmission connection. The second connection seat 423 is connected to the free end of the shading cloth 31 on the second winding assembly 33. The second screw transmission module 421 is connected to the second connection seat 423 to drive the second connection seat 423 to move along the second direction when the second screw transmission module 421 rotates. When it is necessary to drive the shading cloth 31 to move along the second direction to cover the light of the backlight source 20 along the second direction, the second screw transmission module 421 is first driven to rotate by the second drive member 422, and then the second connection seat 423 is driven to move along the second direction, so that the shading cloth 31 moves along the second direction. Specifically, the second drive member 422 can be a motor or a rotary cylinder. The rotational driving force of the motor is converted into the linear motion of the second connecting seat 423 through the second screw transmission module 421, and the transmission accuracy is relatively high.

[0057] See also Figure 2 The second screw transmission module 421 and the second driving member 422 can be provided in two, and the two second screw transmission modules 421 are respectively provided on opposite sides of the carrier 10 along the first direction, and the second connecting seat 423 is provided across the carrier 10, and one end is connected to one of the second screw transmission modules 421, and the other end is connected to the other second screw transmission module 421. By providing two sets of second screw transmission modules 421 and second driving member 422, the movement of the second connecting seat 423 can be made more stable and avoid deviation.

[0058] See also Figure 2 The test platform 100 may further include a second guide assembly 60, the second guide assembly 60 includes a second guide rail 61 and a second slider 62 slidably mounted on the second guide rail 61, the second guide rail 61 is arranged on one side of the carrier 10 along the first direction, and the second connecting seat 423 is connected to the second slider 62. Through the cooperation between the second guide rail 61 and the second slider 62, the operation of the second connecting seat 423 is more accurate and avoids deviation. Specifically, the second guide assembly 60 may include two groups, and the two groups of second guide assemblies 60 are respectively arranged on opposite sides of the carrier 10 along the first direction, one end of the second connecting seat 423 is connected to one group of the second guide assemblies 60, and the other end of the second connecting seat 423 is connected to the other group of the second guide assemblies 60.

[0059] See also Figure 2 The winding mechanism 30 may include a first winding assembly 32 and a second winding assembly 33. The first winding assembly 32 is disposed on at least one side of the carrier 10 along the first direction. The second winding assembly 33 is disposed on at least one side of the carrier 10 along the second direction.

[0060] The driving mechanism 40 may include a first driving component 41 and a second driving component 42. The first driving component 41 is disposed on at least one side of the carrier platform 10 along the second direction, and the first driving component 41 is located on the outside of the second winding component 33. The second driving component 42 is disposed on at least one side of the carrier platform 10 along the first direction, and the second driving component 42 is located on the outside of the first winding component 32. The first direction is perpendicular to the height direction of the carrier platform 10, and the first direction and the second direction are set at an angle. The first direction may be the length direction of the carrier platform 10, and the second direction may be the width direction of the carrier platform 10. Specifically, the first direction and the second direction are set at 90°. Please refer to Figure 1 , and the “first direction” is Figure 1 The X-axis direction in the “second direction” is Figure 1 The Y-axis direction in the “height direction of the carrier 10” is Figure 1 The Z-axis direction.

[0061] The first driving assembly 41 is connected to the free end of the shading cloth 31 on the first winding assembly 32, driving the shading cloth 31 to extend above the carrier 10 along the first direction to at least partially cover the light emitted by the backlight source 20 along the first direction. By setting the first winding assembly 32 and the first driving assembly 41, the light emitted by the backlight source 20 can be at least partially covered along the first direction. When the lengths of the workpieces 200 to be tested are inconsistent, the distance that the shading cloth 31 extends along the first direction can be adjusted, so that the test carrier 100 of the embodiment of the present application can be suitable for workpieces 200 to be tested with different lengths.

[0062] The second driving assembly 42 is connected to the free end of the shading cloth 31 on the second winding assembly 33, driving the shading cloth 31 to extend in the second direction to cover the light emitted by the backlight source 20 in the second direction. By setting the second winding assembly 33 and the second driving assembly 42, the light emitted by the backlight source 20 can be at least partially covered in the second direction. When the width dimensions of the workpiece 200 to be tested are inconsistent, the distance that the shading cloth 31 extends in the second direction can be adjusted, so that the test platform 100 of the embodiment of the present application can be suitable for workpieces 200 to be tested with different width dimensions.

[0063] The test platform 100 of the embodiment of the present application can realize the adjustment of the backlight source 20 in the first direction and the second direction by simultaneously setting the first winding component 32 and the second winding component 33, and cooperating with the first driving component 41 and the second driving component 42, so as to be applicable to the testing of workpieces of different lengths and widths. The first driving component 41 is arranged on at least one side of the carrier 10 along the second direction, and the first driving component 41 is located on the outside of the second winding component 33. The second driving component 42 is arranged on at least one side of the carrier 10 along the first direction, and the second driving component 42 is located on the outside of the first winding component 32. The overall layout is reasonable, the structure is simple and compact, and it is conducive to reducing the volume.

[0064] See also Figure 1 The winding mechanism 30 and the driving mechanism 40 may be covered with a protective cover 70. The protective cover 70 can prevent dust. Specifically, the protective cover 70 may be provided with an escape groove 71, and the escape groove 71 can be used to allow the portion of the driving mechanism 40 connected to the free end of the shading cloth 31 to extend out of the protective cover 70 and be connected to the free end of the shading cloth 31.

[0065] See also Figure 3 The embodiment of the present application further provides a lighting device, including a lighting crimping mechanism 300 and a test platform 100 in any of the above embodiments. The lighting crimping mechanism 300 detects a workpiece 200 to be tested on the test platform 100 .

[0066] Since the lighting device of the embodiment of the present application includes the test platform 100 in any of the above embodiments, it has the beneficial effects brought by the test platform 100 in any of the above embodiments, which will not be described in detail here.

[0067] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A test platform, characterized in that: include: The loading platform is used to place the workpiece to be tested; A backlight source is disposed below the supporting platform; A winding mechanism, arranged on at least one side of the supporting platform, on which a shading cloth is wound; as well as, The driving mechanism is connected to the free end of the shading cloth, and drives the shading cloth to extend above the supporting platform to at least partially cover the light emitted by the backlight source.

2. The test platform according to claim 1, characterized in that: The winding mechanism comprises a first winding assembly, and the first winding assembly is arranged on at least one side of the supporting platform along the first direction; The driving mechanism comprises a first driving component, the first driving component is arranged on at least one side of the carrying platform along a second direction, the first direction is perpendicular to the height direction of the carrying platform, and the first direction is arranged at an angle to the second direction; The first driving assembly is connected to the free end of the shading cloth on the first winding assembly, driving the shading cloth to extend above the supporting platform along the first direction to at least partially cover the light emitted by the backlight source along the first direction.

3. The test platform according to claim 2, characterized in that: The first driving assembly comprises: A first screw transmission module is arranged on at least one side of the supporting platform along the second direction; A first driving member is drivingly connected to the first screw drive module; and The first connecting seat is connected to the free end of the shading cloth on the first winding assembly, and the first screw transmission module is connected to the first connecting seat to drive the first connecting seat to move along the first direction when the first screw transmission module rotates.

4. The test platform according to claim 3, characterized in that: The test platform also includes a first guide assembly, which includes a first guide rail and a first slider slidably mounted on the first guide rail. The first guide rail is arranged on one side of the support platform along the second direction, and the first connecting seat is connected to the first slider.

5. The test platform according to claim 2, characterized in that: The first winding assembly includes two groups, and the two groups of the first winding assemblies are respectively arranged on opposite sides of the supporting platform along the first direction. The first driving assembly is respectively connected to the free ends of the shading cloths on the two groups of the first winding assemblies, and the first driving assembly drives the shading cloths on the two groups of the first winding assemblies to approach or move away from each other along the first direction.

6. The test platform according to any one of claims 1 to 5, characterized in that: The winding mechanism comprises a second winding assembly, and the second winding assembly is arranged on at least one side of the supporting platform along the second direction; The driving mechanism comprises a second driving assembly, the second driving assembly is arranged on at least one side of the carrying platform along a first direction, the first direction is perpendicular to the height direction of the carrying platform, and the first direction is arranged at an angle to the second direction; The second driving assembly is connected to the free end of the shading cloth on the second winding assembly, driving the shading cloth to extend above the supporting platform along the second direction to at least partially cover the light emitted by the backlight source along the second direction.

7. The test platform according to claim 6, characterized in that: The second driving assembly comprises: A second screw transmission module is arranged on at least one side of the supporting platform along the first direction; A second driving member is drivingly connected to the second screw drive module; and The second connecting seat is connected to the free end of the shading cloth on the second winding assembly, and the second screw drive module is connected to the second connecting seat to drive the second connecting seat to move along the second direction when the second screw drive module rotates.

8. The test platform according to claim 7, characterized in that: The test platform also includes a second guide assembly, which includes a second guide rail and a second slider slidably mounted on the second guide rail. The second guide rail is arranged on one side of the support platform along the first direction, and the second connecting seat is connected to the second slider.

9. The test platform according to claim 1, characterized in that: The winding mechanism comprises a first winding assembly and a second winding assembly, wherein the first winding assembly is arranged on at least one side of the supporting platform along the first direction; and the second winding assembly is arranged on at least one side of the supporting platform along the second direction; The driving mechanism comprises a first driving component and a second driving component, the first driving component is arranged on at least one side of the carrying platform along the second direction, and the first driving component is located outside the second winding component, the second driving component is arranged on at least one side of the carrying platform along the first direction, and the second driving component is located outside the first winding component, the first direction is perpendicular to the height direction of the carrying platform, and the first direction and the second direction are arranged at an angle; The first driving assembly is connected to the free end of the shading cloth on the first winding assembly, driving the shading cloth to extend above the supporting platform along the first direction to at least partially cover the light emitted by the backlight source along the first direction; The second driving assembly is connected to the free end of the shading cloth on the second winding assembly, driving the shading cloth to extend above the supporting platform along the second direction to at least partially cover the light emitted by the backlight source along the second direction.

10. A lighting device, characterized in that: It comprises a lighting and crimping mechanism and a test platform as described in any one of claims 1 to 9, and the lighting and crimping mechanism detects a workpiece to be tested on the test platform.

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