A test unit and test mechanism for preparing a display panel

Abstract

The application belongs to the field of display panel preparation, and discloses a test unit for preparing a display panel, which comprises a control part and a test part; the control part is provided with a support plate for supporting the test part; the support plate is provided with a telescopic support, which has two forms of contraction and elongation; when the test unit is used for testing, the telescopic support assumes the form of contraction; when the test unit needs to be refilled, the telescopic support assumes the form of elongation. On the one hand, the telescopic property makes the placement position of the test unit relatively flexible, and can be applied to the application scenario of preparing a display panel with a larger screen; on the other hand, it is more helpful for the refilling operation of the operator.

Description

Technical Field

[0001] This application relates to testing for manufacturing display panels, and more particularly to a testing unit and a testing mechanism for manufacturing display panels. Background Technology

[0002] Organic light-emitting diodes (OLEDs) possess numerous advantages, including self-illumination, low driving voltage, high luminous efficiency, short response time, high clarity and contrast, wide viewing angle, wide operating temperature range, and the ability to achieve flexible and large-area full-color displays, making them one of the most promising display technologies. The fabrication methods for OLEDs are mainly divided into two categories: vacuum evaporation and solution methods. Compared to traditional vacuum evaporation, solution methods, especially inkjet printing, can significantly improve material utilization and save costs, and are easier to use for fabricating large-size display panels, making them an important direction for future display technology development.

[0003] In related technologies, test patterns are typically printed on test units used to manufacture test components for products such as displays. The printed test patterns are then photographed and image processed to evaluate their accuracy, thus assessing the test pattern's performance. As test units are consumables, the test substrate on the unit needs to be replaced. Therefore, the structural design of the test unit is a crucial technology in the manufacturing process. However, the existing test units, which require material replacement, limit their placement, thereby restricting the application scenarios for manufacturing display panels. Summary of the Invention

[0004] This application provides a testing unit for manufacturing display panels. On the one hand, the improved structure of the testing unit makes its placement more flexible and applicable to application scenarios involving the manufacturing of larger display panels; on the other hand, it facilitates material changing operations for operators.

[0005] To achieve the above objectives, this application provides a testing unit for manufacturing a display panel. The testing unit 100 includes a control unit 101 and a testing unit 102. The control unit 101 is provided with a support plate 103, which supports the testing unit 102. The support plate 103 is provided with a retractable support member 104, which has two forms: retractable and extended. When the testing unit 100 is used for testing, the retractable support member 104 is in a retracted form; when the testing unit 100 needs to change materials, the retractable support member 104 is in an extended form.

[0006] In some embodiments, the testing unit 102 further includes a first material cylinder 112 and a second material cylinder 113, and the control unit 101 further includes a motor 114 and a magnetic powder brake 115; the motor 114 is non-contactly connected to the first material cylinder 112 and is used to control the torque of the first material cylinder 112 by means of a magnetic field, and the magnetic powder brake 115 is non-contactly connected to the second material cylinder 113 and is used to control the torque of the second material cylinder 113 by means of a magnetic field.

[0007] In some embodiments, the control unit 101 further includes a first sensor 116 and a second sensor 117, both of which have a first recess; the testing unit 102 further includes a first sensing element 118, which is disposed on the first material cylinder 112 and has a first protrusion and a second recess.

[0008] The control unit 101 and the test unit 102 are configured to cooperate; the first sensor 116 and the second sensor 117 are used to determine that the test unit 102 and the control unit 101 are assembled and to record the number of rotations of the first material cylinder 112 when the first recessed portion contacts the first protrusion; the distance between the first sensor 116 and the second sensor 117 is not equal to a multiple of the size of the first protrusion.

[0009] In some embodiments, the testing unit 102 further includes a second sensor 119, which abuts against the test membrane on the second material cylinder 113. The second sensor 119 can change position with the thickness of the test membrane due to gravity. The control unit 101 further includes a third sensor 120, which is used to determine that the test membrane on the second material cylinder 113 needs to be replaced when the position of the second sensor 119 is sensed.

[0010] In some embodiments, the testing unit 102 further includes a side plate 121, a slider 122, a second magnetic element 123, and two guide shafts 124. The first surface of the testing unit 102 is provided with the side plate 121, the second magnetic element 123 is fixed to the side plate 121, the slider 122 has a first magnetic element, and an attractive force is generated between the first magnetic element and the second magnetic element 123. The slider is slidably connected to the side plate 121. The two guide shafts 124 are respectively connected to the slider 122. When the slider 122 is driven by the attractive force towards the second magnetic element 123... When sliding in direction 3, it can drive the two guide shafts 124 to move along the slider 122 towards the second magnetic component 123; the two guide shafts 124 are used to support the test membrane, and the control unit 101 is provided with an adsorption component 125. When the control unit 101 and the test unit 102 are assembled, the control action of the motor 114 and the magnetic powder brake 115 on the test membrane can drive the two guide shafts 124 to move along the slider 122 away from the second magnetic component 123, so that the test membrane is placed on the adsorption component 125 of the control unit 101.

[0011] In some embodiments, the control unit 101 further includes a pusher 105, a third drive assembly 106, and a fourth drive assembly 107, and the test unit 102 includes a first limiting block 108; the third drive assembly 106 can drive the pusher 105 to move along a first direction, and the fourth drive assembly 107 can move along a second direction and push the first limiting block 108, so that the test unit 102 moves to the material changing position.

[0012] In some embodiments, the test unit 102 further includes a second limiting block 109; wherein the size of the second limiting block 109 is smaller than that of the first limiting block 108; the third driving component 106 can drive the push column 105 to move in the opposite direction of the first direction, and the fourth driving component 107 can move in the opposite direction of the second direction and push the second limiting block 109, so that the test unit 102 moves to the assembly position.

[0013] In some embodiments, the control unit 101 further includes a tray 110 and a suction assembly 111; the tray 110 is disposed below the test membrane for receiving waste liquid on the test membrane, and the suction assembly 111 is used to draw the waste liquid from the tray 110 and discharge it.

[0014] Furthermore, to achieve the above objectives, this application embodiment also provides a testing mechanism for fabricating a display panel. The testing mechanism includes: a testing unit 100 as described above, the testing unit being disposed on a first driving component 400 of a first driving shaft and driven by the first driving component 400 to an assembly position; a printing unit 200, disposed on a second driving component 300 of a second driving shaft, the printing unit 200 including a printing component 201 and a vision camera 202; the second driving component 300 being capable of driving the printing unit 200 to a second testing position; wherein, the first driving shaft is perpendicular to the second driving shaft; the first testing position and the second testing position correspond to each other; the printing component 201 is used to print a test film on the testing unit, and the vision camera 202 is used to photograph the test film to obtain test results.

[0015] In some embodiments, the testing mechanism further includes a support unit 500, which is disposed beside the support member 600 of the second drive assembly 300. The support unit 500 includes a support base 501 and a positioning block 502. The testing part 102 further includes a fourth limiting block 126. The positioning block 502 has a third recess in the middle, and the fourth limiting block 126 has a second protrusion. The third recess cooperates with the second protrusion. When the testing part 102 moves along the extended telescopic support member 104, the support base 501 supports the testing part 102, and the cooperation between the third recess and the second protrusion allows the testing part 102 to remain at the material changing position.

[0016] The beneficial effects of the technical solution provided in this application include: The embodiment of this application provides a test unit and a test mechanism for manufacturing display panels. A retractable support member is provided on the support plate of the control unit. The retractable support member has two forms: retracted and extended. When the test unit is used for testing, the retractable support member is in a retracted form; when the test unit needs to change materials, the retractable support member is in an extended form. This reduces the space occupancy rate of the test unit during testing, improves space utilization, and allows the test unit to move with the drive components. Furthermore, the retractability allows the test unit to be placed closer to the printing unit, making it suitable for applications involving the manufacture of larger display panels. When extended, it is closer to the operator, facilitating material change operations. Additionally, the test unit does not have a camera, reducing its weight and achieving lightweight design. This significantly reduces the complexity of maintenance and improves the efficiency of display panel manufacturing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a testing mechanism for fabricating a display panel according to an embodiment of this application;

[0019] Figure 2A This is a schematic diagram of the structure of a test unit 100 for fabricating a display panel according to an embodiment of this application;

[0020] Figure 2B This is a schematic diagram of the structure of a test unit 100 for fabricating a display panel, provided in one embodiment of this application, from another perspective.

[0021] Figure 3 This is a schematic diagram of the structure of the control unit 101 provided in an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the structure of the test unit 102 provided in one embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the structure of the control unit 101 provided in an embodiment of this application;

[0024] Figure 6 This is a partial structural diagram of the test unit 102 provided in an embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the structure of a support unit 500 provided in an embodiment of this application. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] This application provides a testing unit for manufacturing display panels. A retractable support member is provided on the support plate of the control unit. The retractable support member has two forms: retracted and extended. When the testing unit is used for testing, the retractable support member is in the retracted form; when the testing unit needs to change materials, the retractable support member is in the extended form. This reduces the space occupancy of the testing unit during testing, improves space utilization, and allows the testing unit to move with the driving components. Furthermore, the retractability allows the testing unit to be placed closer to the printing unit, making it suitable for applications manufacturing larger display panels. When extended, it is closer to the operator, facilitating material changing operations. In addition, the testing unit does not include a camera, reducing its weight and achieving lightweight design. This significantly reduces the complexity of maintenance and improves the efficiency of display panel manufacturing.

[0028] See Figure 2A The test unit 100 for preparing a display panel in this embodiment includes a control unit 101 and a test unit 102.

[0029] In some embodiments, the control unit 101 is provided with a support plate 103, which is used to support the test unit 102; the support plate 103 is provided with a retractable support member 104, which has two forms: retracted and extended; wherein, the test unit 100 is used for testing, and the retractable support member 104 is in a retracted form; when the test unit 100 needs to change materials, the retractable support member 104 is in an extended form.

[0030] In some examples, the support plate 103 includes a mounting plate and a slide rail. The slide rail can be electrically or manually controlled. The slide rail is mounted on the mounting plate. When retracted, the slide rail overlaps with the mounting plate to jointly support the test section 102. When extended, the length of the slide rail is greater than that of the mounting plate, enabling it to support the test section 102 to a position further away from the control section 101. The driving method of the slide rail includes, but is not limited to, various linear module driving methods such as linear motors and cylinder mechanisms.

[0031] In this embodiment, the test unit 100 is mounted on the first driving assembly. When the retractable support 104 of the test unit 100 is in a retracted form for testing, the space occupancy of the test unit during testing is reduced. The test unit 100 can move along the length of the substrate with the first driving assembly, improving the flexibility of the testing work. No camera is installed in the test unit. When the retractable support 104 of the test unit 100 is in an extended form for maintenance, the weight of the test unit during maintenance is reduced, achieving the goal of lightweight design. This significantly reduces the complexity of maintenance work and improves the efficiency of display panel manufacturing.

[0032] See Figure 2A , Figure 4 and Figure 5 In some embodiments, the testing unit 102 further includes a first material cylinder 112 and a second material cylinder 113, and the control unit 101 further includes a motor 114 and a magnetic powder brake 115. The motor 114 is non-contactly connected to the first material cylinder 112 and is used to control the torque of the first material cylinder 112 via a magnetic field. The magnetic powder brake 115 is non-contactly connected to the second material cylinder 113 and is used to control the torque of the second material cylinder 113 via a magnetic field. Through the cooperation of the magnetic powder brake and the motor, the damping between the test membranes is controlled, ensuring that the tension of the test membranes remains constant.

[0033] See Figure 2A , Figure 3 and Figure 4 In some examples, the control unit 101 further includes a first sensor 116 and a second sensor 117, both of which have a first recess; the testing unit 102 further includes a first sensing element 118, which is disposed on the first material cylinder 112 and has a first protrusion and a second recess. The control unit 101 and the testing unit 102 are configured to cooperate; the first sensor 116 and the second sensor 117 are used to determine that the testing unit 102 and the control unit 101 are assembled when the first recess contacts the first protrusion. Figure 2B The diagram shows the assembled state of the test unit 102 and the control unit 101, and records the number of rotations of the first barrel 112; the distance between the first sensor 116 and the second sensor 117 is not equal to a multiple of the size of the first protrusion.

[0034] Here, the distance between the first sensor 116 and the second sensor 117 refers to the path taken by the first sensing element 118 from the first sensor 116 to the second sensor 117. Since the path taken by the first sensing element 118 from the first sensor 116 to the second sensor 117 is not equal to a multiple of the size of the first protrusion, when the testing unit 102 and the control unit 101 are assembled, at least one of the first sensor 116 and the second sensor 117 can abut against the sensing element 118. This avoids the situation where the first recess happens to match the first protrusion, making it impossible to determine whether the testing unit 102 and the control unit 101 are assembled, thus improving the accuracy of the determination. The first sensor 116 and the second sensor 117 can record the number of rotations of the first barrel 112 by the number of contacts between the first recess and the first protrusion. Based on the number of rotations the barrel can rotate, the remaining amount of the barrel can be calculated. When the remaining amount reaches a certain threshold, an alarm message indicating that material needs to be replaced is issued.

[0035] In some examples, the testing unit 102 further includes a second sensor 119, which abuts against the test membrane on the second material cylinder 113. The second sensor 119 can change position with the thickness of the test membrane due to gravity. The control unit 101 further includes a third sensor 120, which is used to determine that the test membrane on the second material cylinder 113 needs to be replaced when the position of the second sensor 119 is sensed.

[0036] In this embodiment, the number of rotations recorded by the first sensor 116 and the second sensor 117 can be used to estimate the remaining amount of the material in the cylinder. The third sensor 120 determines that the test film on the second material cylinder 113 needs to be replaced by sensing the position of the second sensing element 119. This dual guarantee avoids the waste of testing costs due to material shortage during the testing process.

[0037] See Figure 2A , Figure 2B , Figure 3 and Figure 6 In some examples, the test unit 102 further includes a side plate 121, a slider 122, a second magnetic element 123, and two guide shafts 124; the test unit 102 has a side plate 121 on its first surface, which refers to the surface away from the control unit 101; the second magnetic element 123 is fixed to the side plate 121; the slider 122 has a first magnetic element, and an attraction can be generated between the first magnetic element and the second magnetic element 123; the slider is slidably connected to the side plate 121; the two guide shafts 124 are respectively connected to the slider 122, and the test membrane is disposed on the two guide shafts 124; the control unit 101 is provided with an adsorption element 125.

[0038] Before the control unit 101 and the test unit 102 are assembled, the attraction between the first magnetic element and the second magnetic element can drive the first magnetic element to move in a direction closer to the second magnetic element 123, and at the same time drive the test membrane to move in a direction away from the adsorption member 125; thus, the first magnetic element and the second magnetic element (123) can attract each other and move closer, so that the test membrane is on the plane of the adsorption member (125). When the control unit 101 and the test unit 102 are assembled, the control action of the motor 114 and the magnetic powder brake 115 on the test membrane can drive the two guide shafts 124 to move in a direction closer to the adsorption member 125, so that the test membrane is placed on the adsorption member 125 of the control unit 101. The adsorption member 125 can fix the position of the test membrane by adsorption.

[0039] Specifically, the slider 122 is slidably connected to the side plate via a linear module. The slider has a groove, and a first magnetic element is provided at the bottom of the groove. Both the first and second magnetic elements can be magnetic materials such as magnets or lodestones. The second magnetic element 123 is disposed within the groove, positioned opposite to the first magnetic element at the bottom of the groove. As an example, the testing unit 102 also has a third limiting block, which is disposed below the slider 122 to limit the range of motion of the slider 122, ensuring that the slider 122 can be driven by the attractive force of the second magnetic element 123.

[0040] In this embodiment, the cooperation of the slider 122 and the second magnetic component 123 prevents the test membrane from impacting the adsorption component 125 during assembly of the test section 102 and the control section 101; the cooperation of the magnetic powder brake and the motor controls the tension of the test membrane. See also Figure 2A and 2B When the testing unit 102 is assembled with the control unit 101, the testing unit 102 is far from the glove box door 700, making it inaccessible to operators for material changing. The telescopic support 104 extends, and a pusher pushes the testing unit 102 to the material changing position, facilitating the operator's material changing operation. This allows for more flexible placement of the control unit 101 and the testing unit 102, enabling them to be placed closer to the printing unit and suitable for applications involving the fabrication of larger display panels.

[0041] In some embodiments, see Figure 2A , Figure 3 and Figure 4 The control unit 101 further includes a pusher 105, a third drive assembly 106, and a fourth drive assembly 107. The testing unit 102 includes a first limiting block 108. One end of the first limiting block 108 is connected to the bottom of the testing unit 102 and extends towards the top of the testing unit 102. The third drive assembly 106 can drive the pusher 105 to move along a first direction, and the fourth drive assembly 107 can move along a second direction and push the first limiting block 108, so that the testing unit 102 moves to the material changing position.

[0042] Here, the second direction refers to the extension direction of the retractable support 104, the first direction refers to the extension direction of the first limiting block 108, and the material changing position refers to the position provided for the operation object to change materials (e.g., Figure 2A (Location of the testing unit 102). Figure 4 For example, the second direction is... Figure 4 The negative direction of the X-axis, the first direction is... Figure 4The positive direction of the Z-axis; the third drive component 106 can drive the push column 105 to move along the first direction, that is, along the positive direction of the Z-axis, so that the push column 105 exceeds the height of the second limit block 109 and does not exceed the height of the first limit block 108; then, the fourth drive component 107 can move along the negative direction of the X-axis and push the first limit block 108, so that the test part 102 moves to the material changing position.

[0043] In some embodiments, the testing unit 102 further includes a second limiting block 109; wherein the size of the second limiting block 109 is smaller than that of the first limiting block 108, and the size here may refer to height; the third driving component 106 can drive the push column 105 to move in the opposite direction of the first direction, and the fourth driving component 107 can move in the opposite direction of the second direction and push the second limiting block 109, so that the testing unit 102 moves to the assembly position. The assembly position is the position where the testing unit 102 and the control unit 101 are assembled. Here, the third driving component 106 and the fourth driving component 107 may be driving mechanisms such as electric cylinders, linear motors, electric push rods, or pneumatic cylinder mechanisms.

[0044] by Figure 4 For example, the third drive component 106 can drive the pusher 105 to move in the opposite direction of the first direction (i.e., the negative direction of the Z-axis) so that the pusher 105 will not exceed the height of the second limit block 109 as a whole and can abut against the second limit block 109; the fourth drive component 107 can move in the opposite direction of the second direction (i.e., the positive direction of the X-axis) and push the second limit block 109 so that the test part 102 moves to the assembly position.

[0045] In this embodiment, the cooperation between the first limiting block 108, the second limiting block 109 and the push column 105 can flexibly drive the test unit 102 to various operating positions, facilitating different operations.

[0046] In some embodiments, the control unit 101 further includes a tray 110 and a suction assembly 111; the tray 110 is disposed below the test membrane for receiving waste liquid on the test membrane, and the suction assembly 111 is used to draw the waste liquid from the tray 110 and discharge it. The test unit 102 is also equipped with a UV lamp for curing the printed test membrane. For some special materials, when the curing effect using a UV lamp is not ideal, the waste liquid can be treated using the tray 110 and the suction assembly 111, which can meet the testing needs of various printed materials.

[0047] See Figure 1This application also proposes a testing mechanism for manufacturing display panels, including a testing unit 100 as described above, which is disposed on a first driving component 400 of a first driving shaft and driven by the first driving component 400 to a first testing position; a printing unit 200, disposed on a second driving component 300 of a second driving shaft, which includes a printing component 201 and a vision camera 202; the second driving component 300 is capable of driving the printing unit 200 to a second testing position; wherein, the first driving shaft is perpendicular to the second driving shaft; the first testing position and the second testing position correspond to each other; the printing component 201 is used to print a test film on the testing unit, and the vision camera 202 is used to photograph the test film to obtain test results.

[0048] by Figure 1 For example, the first drive axis is the Y-axis, the second drive axis is the X-axis, the first test position is the intersection of the movement paths of the first drive assembly 400 and the second drive assembly 300, and the second test position is the intersection of the movement paths of the second drive assembly 300 and the first drive assembly 400. Both the first and second test positions are located on the Z-axis. Here, the first drive assembly 400 and the second drive assembly 300 can be drive mechanisms such as electric cylinders, linear motors, electric actuators, or pneumatic cylinder mechanisms.

[0049] In this embodiment, the camera is mounted on the printing unit 200, reducing the weight of the testing unit 100 and achieving lightweight design, which significantly reduces the complexity of maintaining the testing unit 100. Since the testing unit has a smaller space occupancy when retracted, it can be mounted on the first drive assembly 400 and move with the first drive assembly 400; therefore, other testing units can also be mounted on the first drive assembly. This breaks through the limitations of traditional technology where only one testing unit can be tested due to the movement restrictions of the printing mechanism, enabling the testing mechanism to perform multiple tests and improving its performance.

[0050] See Figure 1 , Figure 2B and Figure 7In some embodiments, the testing mechanism further includes a support unit 500, which is disposed beside the support member 600 of the second drive assembly 300. The support unit 500 includes a support base 501 and a positioning block 502. The support base 501 further includes a fixing plate, which is parallel to the side plate of the testing part 102 and is used to fix the positioning block 502. The positioning block is mounted on the fixing plate of the support base. The testing part 102 further includes a fourth limiting block 126. The positioning block 502 has a third recess in the middle, and the fourth limiting block 126 has a second protrusion. The third recess cooperates with the second protrusion. When the testing part 102 moves along the extended telescopic support member 104, the support base 501 supports the testing part 102, and the cooperation between the third recess and the second protrusion allows the testing part 102 to stay in the material changing position. The second protrusion forms two fourth recesses, and the third recess is formed by two third protrusions. The second protrusion and the two fourth recesses form a "T" shape, and the third recess and the two third protrusions form a "U" shape. A ball bearing is provided on the side of the third protrusion facing the third recess, and the ball bearing is connected to the third protrusion via a spring. When the third recess engages with the second protrusion, the ball bearing abuts against the second protrusion, and the ball bearing is forced to move in the direction of compressing the spring. Then, the second protrusion continues to move, and the ball bearing engages with the fourth recess, reducing the force on the ball bearing and causing it to move in the opposite direction until the second protrusion abuts against the positioning block 502. The spring is no longer under force and is in a free state. The ball bearing can then restrict the position of the testing section 102, thus ensuring that the testing section 102 remains in the material changing position.

[0051] In the description of this application, it should be understood that the terms "X", "Y", "Z", etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0053] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A test unit for fabricating a display panel, characterized in that, The test unit (100) includes a control unit (101) and a test unit (102). The control unit (101) is provided with a support plate (103), which is used to support the test unit (102); the support plate (103) is provided with a retractable support member (104), which has two forms: retractable and extended; When the test unit (100) is used for testing, the retractable support (104) is in a retracted state; when the test unit (100) needs to change materials, the retractable support (104) is in an extended state. The testing unit (102) further includes a first material cylinder (112) and a second material cylinder (113), and the control unit (101) further includes a motor (114) and a magnetic powder brake (115); the motor (114) is non-contactly connected to the first material cylinder (112) and is used to control the torque of the first material cylinder (112) through a magnetic field; the magnetic powder brake (115) is non-contactly connected to the second material cylinder (113) and is used to control the torque of the second material cylinder (113) through a magnetic field. The testing unit (102) further includes a second sensor (119), which abuts against the test film on the second material cylinder (113). The second sensor (119) can change position with the thickness of the test film due to gravity. The control unit (101) further includes a third sensor (120), which is used to determine that the test film on the second material cylinder (113) needs to be replaced when the position of the second sensor (119) is sensed.

2. The test unit as described in claim 1, characterized in that, The control unit (101) further includes a first sensor (116) and a second sensor (117), both of which have a first recess; the test unit (102) further includes a first sensing element (118), which is disposed on the first material cylinder (112) and has a first protrusion and a second recess. The control unit (101) and the test unit (102) are configured to cooperate; the first sensor (116) and the second sensor (117) are used to determine that the test unit (102) and the control unit (101) are assembled when the first recessed part contacts the first protrusion and to record the number of rotations of the first barrel (112); the distance between the first sensor (116) and the second sensor (117) is not equal to a multiple of the size of the first protrusion.

3. The test unit as described in claim 1, characterized in that, The testing unit (102) further includes a side plate (121), a slider (122), a first magnetic component, a second magnetic component (123), and two guide shafts (124); the first side of the testing unit (102) is provided with a side plate (121), the second magnetic component (123) is fixed on the side plate (121), the slider (122) is equipped with the first magnetic component, and the slider (122) is slidably connected to the side plate (121); the two guide shafts (124) are respectively connected to the slider (122), and the test membrane is disposed on the two guide shafts (124); the control unit (101) is provided with an adsorption component (125). Before the control unit (101) and the test unit (102) are assembled, the first magnetic element and the second magnetic element (123) can attract each other and move closer together, so that the test membrane is on the plane of the adsorption element (125); When the control unit (101) and the test unit (102) are assembled, the control action of the motor (114) and the magnetic powder brake (115) on the test membrane can drive the two guide shafts (124) to move along the direction of the test membrane close to the adsorption member (125), so that the test membrane is placed on the adsorption member (125) of the control unit (101).

4. The test unit as described in claim 1, characterized in that, The control unit (101) further includes a push column (105), a third drive assembly (106) and a fourth drive assembly (107), and the test unit (102) includes a first limiting block (108); the third drive assembly (106) can drive the push column (105) to move along a first direction, and the fourth drive assembly (107) can move along a second direction and push the first limiting block (108) so that the test unit (102) moves to the material changing position.

5. The test unit as described in claim 4, characterized in that, The test unit (102) further includes a second limiting block (109); wherein the size of the second limiting block (109) is smaller than that of the first limiting block (108); the third driving component (106) can drive the push column (105) to move in the opposite direction of the first direction, and the fourth driving component (107) can move in the opposite direction of the second direction and push the second limiting block (109) so that the test unit (102) moves to the assembly position.

6. The test unit as described in claim 1, characterized in that, The control unit (101) also includes a tray (110) and a suction assembly (111); the tray (110) is disposed below the test membrane and is used to receive waste liquid on the test membrane, and the suction assembly (111) is used to draw the waste liquid from the tray (110) and discharge it.

7. A testing mechanism for manufacturing display panels, characterized in that, The testing facility includes: The test unit (100) as described in any one of claims 1-6 is disposed on the first drive assembly (400) of the first drive shaft and is driven by the first drive assembly (400) to the first test position; A printing unit (200) is disposed on a second drive assembly (300) on a second drive shaft. The printing unit (200) includes a printing assembly (201) and a vision camera (202). The second drive assembly (300) is capable of driving the printing unit (200) to a second test position. Wherein, the first drive shaft is perpendicular to the second drive shaft; the first test position corresponds to the second test position; the printing component (201) is used to print the test film on the test unit, and the vision camera (202) is used to photograph the test film to obtain the test results.

8. The testing mechanism as described in claim 7, characterized in that, The testing mechanism further includes a support unit (500), which is disposed next to the support member (600) of the second drive assembly (300). The support unit (500) includes a support base (501) and a positioning block (502). The testing unit (102) further includes a fourth limiting block (126). The positioning block (502) has a third recess in the middle, and the fourth limiting block (126) has a second protrusion. The third recess cooperates with the second protrusion. When the test part (102) moves along the extended telescopic support (104), the support seat (501) is used to support the test part (102). The cooperation between the third recess and the second protrusion allows the test part (102) to stay in the material changing position.

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