Automatic loading and unloading demura inspection device and method

Abstract

The present invention belongs to the technical field of display panel inspection. Disclosed are an automatic loading and unloading Demura inspection device and method. An automatic loading and unloading mechanism comprises a material in-and-out mechanical arm and, provided with trays, a full-tray feeding member and a full-tray discharging member; each material in-and-out mechanical arm comprises a first material clamping assembly; a transfer conveying mechanism comprises a transfer platform, the transfer platform being provided with at least two kinds of buffer areas; a multi-degree-of-freedom conveying component is provided with a second material clamping assembly; inspection mechanisms are provided at two sides of the multi-degree-of-freedom conveying component and are used for performing Demura inspection on display panels under test. Also disclosed is an automatic loading and unloading Demura inspection method. The present invention provides the automatic loading and unloading Demura inspection device and method, which can be adapted to inspection requirements of display panels of different specifications and, while accurately inspecting the display panels of different specifications, optimize inspection processes of the display panels, thus not only reducing occupied spaces, but also shortening the waiting time of the display panels at other stations.

Description

Automatic feeding and discharging Demura detection device and method TECHNICAL FIELD

[0001] The present application belongs to the technical field of display panel detection, and particularly relates to an automatic feeding and discharging Demura detection device and method. BACKGROUND

[0002] With the rapid development of display panels and the improvement of people's living standards, display panels have been widely used in daily life and industrial production, and their application fields and forms are becoming more and more diverse.

[0003] With the continuous expansion of the application field of display panels and the continuous improvement of people's requirements for display panel picture quality, picture detection after the production of liquid crystal screens is becoming more and more important. Demura / De-mura detection is for detecting display panel Mura (color unevenness) in order to repair and compensate the display panel with color unevenness based on the subsequent detection structure of the display panel. The color uniformity of the display panel is also one of the key parameters of the display performance of the display panel. In order to ensure the quality of the display panel, the display panel needs to be point-screen detected before it is shipped to ensure that the substrate is a qualified product.

[0004] In the prior art, the display panel needs to be fed first, then taken by the taking mechanism to the crimping mechanism (display panel point screen detection equipment) for panel detection. The crimping mechanism is electrically connected with the test points on the display panel to be detected. After crimping, the display panel to be detected is transported to the detection mechanism by the conveying mechanism to detect the display panel to be detected. Whether the display panel has defects is determined by analyzing the display picture.

[0005] In the prior art, the feeding and detection equipment are usually arranged side by side to form a flow line setting form, which usually means that a single detection equipment can detect a display panel of one specification, and cannot realize the mixed detection process. Moreover, since a single display panel needs a long detection time, the display panel needs to wait for a long time at other stations, which leads to a long overall detection time and affects the work efficiency of the display panel detection. SUMMARY

[0006] In view of one or more of the above defects or improvement needs of the prior art, the present application provides an automatic feeding and discharging Demura detection device and method, which can be suitable for the detection needs of display panels of different specifications, can realize accurate detection of display panels of different specifications, can optimize the detection process of display panels, can reduce the occupation of space, can reduce the waiting time of display panels at other stations, and can significantly improve the work efficiency of display panel detection.

[0007] To achieve the above object, the application provides an automatic loading and unloading Demura detection device, which comprises

[0008] The automatic loading and unloading mechanism comprises at least one full-tray feeding member, at least one full-tray discharging member and at least one feeding and discharging mechanical arm; each full-tray feeding member and each full-tray discharging member are arranged along a first direction, each full-tray feeding member is provided with a plurality of tray plates loaded with display panels to be detected, each full-tray discharging member is provided with a plurality of tray plates loaded with display panels detected, and each feeding and discharging mechanical arm comprises a three-axis movement member and a first material clamping assembly arranged on the three-axis movement member.

[0009] The transfer transport mechanism comprises at least one transfer platform and at least one multi-degree-of-freedom transport member, the transfer platform comprises at least two buffer areas, the multi-degree-of-freedom transport member is arranged along a second direction, and a second material clamping assembly is arranged on the multi-degree-of-freedom transport member.

[0010] A plurality of detection mechanisms are arranged on both sides of the multi-degree-of-freedom transport member, each detection mechanism comprises a pressure contact jig and an AOI detection mechanism, the pressure contact jig is arranged along the first direction, and a bearing table is arranged on the pressure contact jig; the AOI detection mechanism is arranged on the side of the pressure contact jig away from the multi-degree-of-freedom transport member, and is used for Demura detection of the display panel to be detected.

[0011] As a further preferred embodiment of the application, the automatic loading and unloading mechanism further comprises at least one empty-tray feeding member, the empty-tray feeding member is arranged on the side of the full-tray feeding member away from the full-tray discharging member, and a plurality of empty tray plates are placed in the empty-tray feeding member.

[0012] As a further preferred embodiment of the application, at least one wide-angle detection mechanism is arranged on the top end of the full-tray feeding member, and each wide-angle detection mechanism faces the display panel to be detected loaded in the tray plate.

[0013] As a further preferred embodiment of the application, a tray plate clamping member is further arranged on the three-axis movement member, and the tray plate clamping member comprises an automatic clamp matched with the structure of the tray plate.

[0014] As a further preferred embodiment of the application, the transfer transport mechanism further comprises at least one switching assembly, each switching assembly comprises a switching movement end reciprocating along the second direction, and the transfer platform is arranged on the switching movement end.

[0015] As a further preferred embodiment of the present application, the transfer transport mechanism comprises two multi-degree-of-freedom transport members arranged at intervals along the first direction and two transfer platforms arranged at intervals along the first direction.

[0016] As a further preferred embodiment of the present application, each multi-degree-of-freedom transport member is provided with at least one first alignment member on the side facing the detection mechanism, and a first alignment detection end is arranged on the top end face of the first alignment member, and the first alignment detection end faces the display panel to be detected clamped on the second material clamping assembly.

[0017] As a further preferred embodiment of the present application, the top end face of the bearing table is provided with at least one bearing surface for bearing the display panel to be detected, and a horizontal movement cylinder is arranged on the bearing surface, a bidirectional pressure contact cylinder is arranged on the movement end of the horizontal movement cylinder, and a pressure contact block facing the bearing surface is arranged on the movement end of the bidirectional pressure contact cylinder.

[0018] As a further preferred embodiment of the present application, the pressure contact jig is provided with at least one second alignment member on one side, and a second alignment detection end of the second alignment member faces the bearing surface.

[0019] An automatic feeding and discharging Demura detection method is also disclosed, which realizes automatic detection by using the automatic feeding and discharging Demura detection device, and comprises the following steps:

[0020] The three-axis movement member drives the first material clamping assembly to clamp the display panel to be detected in the tray disc in the full-tray feeding member;

[0021] According to the specification of the display panel to be detected, the display panel to be detected is transported and placed into the corresponding buffer area;

[0022] The multi-degree-of-freedom transport member drives the second material clamping assembly to clamp the display panel to be detected in the buffer area, and places the display panel to be detected into the pressure contact jig;

[0023] The AOI detection member detects the display panel to be detected in the pressure contact jig to obtain the detected display panel;

[0024] The multi-degree-of-freedom transport member reciprocally takes the next display panel to be detected into the next pressure contact jig, and clamps and transports the detected display panel to the transfer platform;

[0025] The three-axis movement member drives the first material clamping assembly to transport the detected display panel to the tray disc of the full-tray discharging member;

[0026] Repeat the above steps until all the display panels to be detected are detected.

[0027] Overall, the above technical solutions conceived by the present application compared with the prior art have the beneficial effects including:

[0028] (1) The automatic feeding and discharging Demura detection device, the automatic feeding and discharging mechanism thereof comprises a full-tray feeding member, a full-tray discharging member and an in-out feeding mechanical arm; the full-tray feeding member and the full-tray discharging member are provided with tray plates; the in-out feeding mechanical arm comprises a first material clamping assembly provided on a three-axis movement member; the transfer transport mechanism comprises a transfer platform and a multi-degree-of-freedom transport member, the transfer platform comprises at least two buffer areas; the multi-degree-of-freedom transport member is provided with a second material clamping assembly; the detection mechanism is arranged on both sides of the multi-degree-of-freedom transport member, and is used for Demura detection of the display panels to be detected. The automatic feeding and discharging Demura detection device can meet the detection requirements of display panels of different specifications, accurately detect display panels of different specifications, optimize the detection process of display panels, reduce the occupation of space, reduce the waiting time of display panels in other stations, and significantly improve the work efficiency of display panel detection.

[0029] (2) The automatic feeding and discharging Demura detection device and method, at least one wide-angle detection member is arranged on the top end of the full-tray feeding member, and each wide-angle detection member faces the display panels to be detected loaded in the tray plate, so as to accurately obtain the state of the display panels to be detected in the tray plate, and then ensure the feeding and discharging of the display panels by the in-out feeding mechanical arm. Meanwhile, at least one first alignment member is arranged on the side of the multi-degree-of-freedom transport member facing the detection mechanism, so as to accurately detect the posture of the display panels to be detected on the second material clamping assembly, and then ensure that the display panels to be detected can be accurately placed on the crimping jig, and the accuracy of display panel detection is further improved.

[0030] (3) The automatic feeding and discharging Demura detection device and method of the application has stable operation, accurate detection and high work efficiency. The full-tray discharging component, full-tray feeding component and empty-tray feeding component are arranged side by side, and the tray stack and lifting unit are arranged in the three components, so that the automatic feeding and discharging mechanism can reduce the occupied space while ensuring the automatic feeding and discharging of full-tray and empty-tray. Meanwhile, the three-axis movement component capable of realizing multidirectional movement and the transfer platform including at least two buffer areas are adopted, so that the automatic feeding and discharging mechanism can realize the mixed feeding and discharging and buffering of different models of display panels, and the multidirectional movement transport component and the three-axis movement component can move efficiently and reduce the downtime. In addition, the multidirectional movement transport component arranged along the second direction and the detection mechanisms arranged on both sides of the multidirectional movement transport component can stably transport different models of display panels to the corresponding detection mechanisms, so as to realize the mixed detection of different display panels, improve the use efficiency of the multidirectional movement transport component, reduce the space occupied by the detection mechanisms and the multidirectional movement transport component, and have good use value and promotion prospect. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a top view of the overall structure of an embodiment of the automatic feeding and discharging Demura detection device of the application;

[0032] Figure 2 is a top view of the overall structure of another embodiment of the automatic feeding and discharging Demura detection device of the application;

[0033] Figure 3 is a flow chart of the automatic feeding and discharging Demura detection method of the application.

[0034] In all the drawings, the same reference signs represent the same technical features, specifically:

[0035] 1, full-tray discharging component; 2, full-tray feeding component; 3, empty-tray feeding component; 4, first X-axis movement assembly; 5, first Y-axis movement assembly; 6, automatic clamp; 7, tray stack; 8, transfer platform; 9, buffer area; 10, switching assembly; 11, second X-axis movement assembly; 12, second Y-axis movement assembly; 13, second material clamping assembly; 14, first alignment component; 15, bearing table; 16, third Y-axis movement assembly; 17, AOI detection component; 18, first material clamping assembly; 19, second alignment component; 20, wide-angle detection component. DETAILED DESCRIPTION

[0036] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application and not to limit the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0037] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0039] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] Embodiments:

[0042] Referring to FIGS. 1-3, the automatic loading and unloading Demura detection device and method in the preferred embodiment of the present application can be applied to the detection requirements of display panels of different specifications, can realize accurate detection of display panels of different specifications, can optimize the detection process of display panels, can reduce the occupation of space, can reduce the waiting time of display panels in other stations, and can significantly improve the work efficiency of display panel detection.

[0043] Specifically, as shown in FIGS. 1 and 2, in the preferred embodiment of the present application, the automatic loading and unloading Demura detection device includes an automatic loading and unloading mechanism, a transfer transport mechanism, and a plurality of detection mechanisms.

[0044] The automatic loading and unloading mechanism is used to realize the loading of the tray 7 full of display panels to be detected and the unloading of the tray 7 full of display panels that have been detected. The automatic loading and unloading mechanism includes at least one full-tray feeding member 2, at least one full-tray discharging member 1, and at least one feeding and discharging mechanical arm. Each full-tray feeding member 2 and each full-tray discharging member 1 is arranged along a first direction, and each full-tray feeding member 2 is provided with a plurality of trays 7 loaded with display panels to be detected. Correspondingly, each full-tray discharging member 1 is provided with a plurality of trays 7 loaded with display panels that have been detected. Preferably, the full-tray discharging members 1 are arranged side by side on one side of the full-tray feeding member 2 along the first direction, which can facilitate the feeding and discharging of the feeding and discharging mechanical arm and can significantly reduce the space occupied by the automatic loading and unloading mechanism. Meanwhile, each feeding and discharging mechanical arm includes a three-axis movement member and a first material clamping assembly 18 arranged on the three-axis movement member. The first material clamping assembly 18 on the three-axis movement member is accurately clamped on the display panel by the three-axis movement member, and the display panel is transported to the corresponding position for placement, so as to ensure that the automatic loading and unloading Demura detection device can stably realize the automatic loading and unloading of display panels.

[0045] Further, in the preferred embodiment of the present application, the transfer transport mechanism further comprises at least one intermediate station platform and at least one multi-degree-of-freedom transport member. The intermediate station platform 8 comprises at least two buffer areas 9, each corresponding to a different type of display panel, so that the detection device can realize automatic detection of different types of display panels. Meanwhile, the multi-degree-of-freedom transport member is arranged along the second direction and is disposed on one side of the automatic feeding and discharging mechanism. The transfer transport mechanism comprises at least one multi-degree-of-freedom transport member, and a second material clamping assembly 13 is arranged on the multi-degree-of-freedom transport member. The second material clamping assembly 13 can take out the display panel in the buffer space area of the intermediate station platform 8 and transfer different types of display panels to the corresponding detection mechanism, facilitating accurate detection of different types of display panels.

[0046] It is worth noting that, as shown in FIG. 1, in the preferred embodiment of the present application, the first direction is the direction in which the full-tray feeding members 2 and the full-tray discharging members 1 are arranged side by side, and the first direction is the Y-axis direction. The second direction is the direction perpendicular to the first direction in the horizontal plane, which is also the extension direction of the multi-degree-of-freedom transport member, and the second direction is the X-axis direction. The third direction is perpendicular or vertical to the horizontal plane, and the third direction is the Z-axis direction.

[0047] Further preferably, the detection mechanisms are distributed on both sides of the multi-degree-of-freedom transport member, so that the detection device can simultaneously perform Demura detection on multiple display panels. Specifically, the detection mechanism comprises a compression jig and an AOI detection member 17. The compression jig is arranged along the first direction and has a bearing table 15 arranged thereon for bearing the display panel to be detected. The AOI detection member 17 is arranged on the side of the compression jig away from the multi-degree-of-freedom transport member for Demura detection of the display panel to be detected.

[0048] Further, in the preferred embodiment of the present application, the automatic feeding and discharging mechanism further comprises at least one empty-tray feeding member 3, which is arranged on the side of the full-tray feeding member 2 away from the full-tray discharging member 1. After the detection of the display panel is completed, the empty-tray feeding member 3 can provide a containing empty-tray for the detected display panel, ensuring automatic feeding and discharging. Preferably, a plurality of empty-tray trays 7 are arranged in the empty-tray feeding member 3.

[0049] Further preferably, as shown in FIG. 2, in one specific preferred embodiment of the present application, two full tray discharge members 1 are arranged side by side on both sides of the single empty tray feeding member 3 along the first direction, and one full tray feeding member 2 is arranged on one side of each full tray discharge member 1 away from the empty tray feeding member 3 along the first direction, i.e. the empty tray 7 on the single empty tray feeding member 3 can be used by two full tray discharge members 1, thereby improving the use efficiency of the empty tray feeding member 3 and reducing the space occupied by the entire automatic feeding and discharging mechanism.

[0050] More specifically, in the preferred embodiment of the present application, in each empty tray feeding member 3, the empty tray 7 is stacked along the third direction, and at least one lifting unit is arranged on the bottom end surface of each empty tray 7, and the top end surface of the lifting unit abuts against the empty tray 7 to facilitate the taking and using of the empty tray 7. Preferably, corresponding to each full tray feeding member 2 and each full tray discharge member 1, a similar structure as the empty tray feeding member 3 is also arranged, i.e. full trays are stacked along the third direction and corresponding lifting units are arranged, thereby improving the working efficiency of the automatic feeding and discharging mechanism.

[0051] Further, in the preferred embodiment of the present application, at least one wide-angle detection member 20 is arranged on the top end of the full tray feeding member 2, and each wide-angle detection member 20 faces the display panel to be detected loaded in the tray 7 to accurately obtain the state of the display panel to be detected in the tray 7, thereby ensuring the feeding and discharging of the display panel by the feeding and discharging robot. Preferably, a feeding support is arranged corresponding to the full tray discharge member 1, and each wide-angle detection member 20 is arranged on the top end surface of the top plate of the feeding support to detect the position and information of the display panel in the tray 7 in the full tray feeding member 2.

[0052] Further preferably, in the preferred embodiment of the present application, the three-axis motion member includes a first X-axis motion assembly 4, a first Y-axis motion assembly 5, and a first Z-axis motion assembly. The first Y-axis motion assembly 5 is arranged along the Y-axis, and the first Y-axis motion assembly 5 is provided with a first Y-axis motion end. The first X-axis motion assembly 4 is arranged along the X-axis, and the first X-axis motion assembly 4 is fixed on the first Y-axis motion end, and the first X-axis motion assembly 4 is provided with a first X-axis motion end. The first Z-axis motion assembly is arranged along the Z-axis, and the first Z-axis motion assembly is provided with a first Z-axis motion end, and the first Z-axis motion assembly is fixed on the first X-axis motion end, and the first Z-axis motion end is fixed with a first material clamping assembly 18 for clamping the display panel. Preferably, the first material clamping assembly 18 includes at least one vacuum suction cup for adsorbing and clamping the display panel.

[0053] More specifically, as shown in FIG. 1, in the preferred embodiment of the present application, in order to facilitate the handling of the tray 7 by the three-axis movement member, the tray 7 clamping member is further provided on the three-axis movement member, which comprises an automatic clamp 6 adapted to the structure of the tray 7. Preferably, the automatic clamp 6 is provided on the first Z-axis movement end. Further preferably, the automatic clamp 6 comprises a pneumatic clamping member or a pneumatic vacuum chuck corresponding to the tray 7. As shown in FIG. 1, the automatic clamp 6 of the three-axis movement member clamps the tray 7 so as to facilitate the movement of the tray 7 in space.

[0054] Further, as shown in FIG. 2, in the preferred embodiment of the present application, the transfer transport mechanism further comprises at least one switching assembly 10, preferably each switching assembly 10 is arranged along the second direction, and each switching assembly 10 is provided with a switching movement end reciprocating along the second direction, and the corresponding transfer platform 8 is arranged on the switching movement end, and the transfer platform 8 can move along the second direction. In a specific preferred embodiment of the present application, the transfer transport mechanism comprises at least one transfer platform 8, and each transfer platform 8 is correspondingly provided with a switching assembly 10.

[0055] In actual use, the display panel to be detected and the display panel detected can be placed on a single transfer platform 8 at the same time, and the switching assembly 10 moving along the second direction can make the transfer platform 8 reciprocate between the automatic loading and unloading mechanism and the multi-degree-of-freedom transport member. That is, when the transfer platform 8 is close to the automatic loading and unloading mechanism, the automatic loading and unloading mechanism transports a display panel to be detected to the empty buffer area 9 of the transfer platform 8, and transports the display panel detected in another buffer area 9 of the transfer platform 8; the transfer platform 8 moves to carry the display panel to be detected to the side of the multi-degree-of-freedom transport member, the multi-degree-of-freedom transport member places the display panel detected in the buffer area 9 of the transfer platform 8, and clamps and transports the display panel to be detected to the detection mechanism for detection. This not only improves the working efficiency of the entire automatic loading and unloading Demura detection device, but also leaves enough interval for the automatic loading and unloading mechanism and the multi-degree-of-freedom transport member along the second direction, avoiding the movement collision accident of the two.

[0056] Further preferably, as shown in FIG. 2, in the preferred embodiment of the present application, the transfer transport mechanism further comprises two multi-degree-of-freedom transport members arranged along the first direction and two transfer platforms 8 arranged along the first direction corresponding to the multi-degree-of-freedom transport members, so that the multi-degree-of-freedom transport member and the transfer platform 8 on one side can complete the loading and unloading of the display panel to each detection mechanism on one side of the transfer transport mechanism.

[0057] More specifically, in the preferred embodiment of the present application, the multi-degree-of-freedom conveying member comprises a second X-axis movement assembly 11, a second Y-axis movement assembly 12 and a second Z-axis movement assembly. The second X-axis movement assembly 11 is arranged along the X-axis direction, and a second X-axis movement end reciprocally movable along the X-axis direction is arranged on the second X-axis movement assembly 11. The second Y-axis movement assembly 12 is fixedly installed on the second X-axis movement end, and the second Y-axis movement assembly 12 extends along the Y-axis direction, and a second Y-axis movement end reciprocally movable along the Y-axis direction is arranged on the second Y-axis movement assembly 12. The second Z-axis movement assembly is fixedly installed on the second Y-axis movement end, and the second Z-axis movement assembly extends along the Z-axis direction, and a second Z-axis movement end reciprocally movable along the Z-axis direction is arranged on the second Z-axis movement assembly, and a second material clamping assembly 13 for clamping the display panel is arranged on the second Z-axis movement end. Preferably, the second material clamping assembly 13 comprises at least one vacuum chuck for clamping the display panel.

[0058] Further, as shown in FIG. 2, in one specific preferred embodiment of the present application, the transfer conveying mechanism comprises two multi-degree-of-freedom conveying members arranged side by side along the first direction, and the two second Y-axis movement assemblies 12 of the two oppositely arranged multi-degree-of-freedom conveying members extend along the Y-axis direction respectively towards the respective detection mechanisms located on one side of the multi-degree-of-freedom conveying member, i.e. the second Y-axis movement assemblies 12 of the two multi-degree-of-freedom conveying members extend along the Y-axis in opposite directions, so that the single-sided second Y-axis movement assembly 12 can load and unload the display panel in the single-sided detection mechanism.

[0059] Further, as shown in FIG. 1, in another specific preferred embodiment of the present application, the transfer conveying mechanism comprises one multi-degree-of-freedom conveying member, and the second X-axis movement end of the second X-axis movement assembly 11 is fixed at the middle position of the second Y-axis movement assembly 12 along the Y-axis, so that the second Y-axis movement end can flexibly convey the display panel on the second material clamping assembly 13 to the detection mechanisms on both sides of the transfer conveying mechanism.

[0060] Further, in the preferred embodiment of the present application, the top end surface of the display panel is provided with a display surface to be detected, and the automatic loading and unloading mechanism and the multi-degree-of-freedom conveying member both convey the display panel by grabbing the display surface.

[0061] Further preferably, in the preferred embodiment of the present application, at least one first alignment member 14 is arranged on the side of the multi-degree-of-freedom conveying member facing the detection mechanism, and the top end surface of each first alignment member 14 is provided with a first alignment detection end for detecting the posture of the display panel on the second material clamping assembly 13. In actual use, if the first alignment detection end detects that the display panel on the second material clamping assembly 13 is offset, the movement trajectory of the multi-degree-of-freedom conveying member is adjusted according to the offset amount to ensure that the multi-degree-of-freedom conveying member can accurately convey the display panel. Preferably, the first alignment member 14 is an alignment camera or a laser scanning module.

[0062] More specifically, in the preferred embodiment of the present application, the model of the display panel can also be determined according to the information of the display panel on the multi-degree-of-freedom conveying member collected by the first alignment member 14. If the signal of the display panel on the multi-degree-of-freedom conveying member is inconsistent with the model of the display panel that the multi-degree-of-freedom conveying member needs to convey this time, a clamping error signal can also be fed back, the multi-degree-of-freedom conveying member is stopped, and an error alarm is given.

[0063] Further, in one specific preferred embodiment of the present application, one first alignment member 14 is arranged on each side of the multi-degree-of-freedom conveying member in the first direction, and preferably, each first alignment member 14 is arranged close to the transfer member in the second direction, so that after the display panel is clamped, the multi-degree-of-freedom conveying member can conveniently pass through the first alignment member 14 to detect the posture of the display panel on the multi-degree-of-freedom conveying member.

[0064] Further, in the preferred embodiment of the present application, the bearing table 15 is provided with at least one bearing surface for bearing the display panel to be detected, and a horizontal movement cylinder is arranged on the bearing surface, a bidirectional pressure joint cylinder is arranged on the movement end of the horizontal movement cylinder, and a pressure joint block facing the bearing surface is arranged on the movement end of the bidirectional pressure joint cylinder. In actual use, the multi-degree-of-freedom conveying member first places the display panel on the bearing surface, the movement end of the horizontal movement cylinder drives the bidirectional pressure joint cylinder to move in the second direction, so that the pressure joint blocks of the bidirectional pressure joint cylinder are arranged above the top end surface of the display panel to be detected, and then the bidirectional pressure joint cylinder drives the pressure joint to move downward in the third direction, so that the pressure joint presses the top end surface of the display panel to be detected, completing the fixation and lighting of the display panel to be detected. After the detection of the display panel is completed, the bidirectional pressure joint cylinder drives the pressure joint to move upward in the third direction, releasing the pressure joint from the display panel, and then the movement end of the horizontal movement cylinder moves in the second direction, so that the bidirectional pressure joint cylinder is separated from the top region of the display panel, leaving space for the top of the display panel, facilitating the transfer of the display panel by the multi-degree-of-freedom conveying member.

[0065] Further preferably, in the preferred embodiment of the present application, the crimping jig further comprises a third X-axis movement assembly and a third Y-axis movement assembly 16. The third Y-axis movement assembly 16 extends along the Y-axis direction, and a third Y-axis movement end reciprocally movable along the Y-axis direction is arranged on the third Y-axis movement assembly 16. The third X-axis movement assembly is fixedly installed on the third Y-axis movement end, and the third X-axis movement assembly extends along the X-axis direction, and a third X-axis movement end reciprocally movable along the X-axis direction is arranged on the third X-axis movement assembly, and the carrier table 15 is fixedly installed on the third X-axis movement end. Preferably, a third Z-axis movement assembly is further arranged between the third X-axis movement end and the carrier table 15, which extends along the Z-axis direction and is fixedly installed on the third X-axis movement end, and a third Z-axis movement end is arranged on the third Z-axis movement assembly, and the carrier table 15 is fixedly installed on the third Z-axis movement end, so as to realize multi-degree-of-freedom adjustment of the display panel.

[0066] More specifically, in the preferred embodiment of the present application, at least one second alignment member 19 is further arranged on one side of the crimping jig, and a detection end of the second alignment member 19 faces the carrying surface, so that the second alignment member 19 can accurately collect the posture of the display panel on the carrying surface. In actual use, if the second alignment member 19 detects that the position of the display panel on the carrying surface is deviated, the third X-axis movement assembly can be adjusted according to the deviation, so as to ensure the spatial position of the display panel is accurate, and thus ensure the accuracy of the display panel detection. Preferably, the second alignment member 19 is an alignment camera or a laser scanning module.

[0067] Further, in the preferred embodiment of the present application, a position detection sensor is further arranged on the side of the AOI detection member 17 facing the crimping jig, which is used to detect the position of the crimping jig, so as to ensure that the crimping jig has entered the detection position of the AOI detection member 17, and further improve the accuracy of the display panel detection.

[0068] Further, as shown in FIG. 3, in another preferred embodiment of the present application, an automatic feeding and discharging Demura detection method is disclosed, which uses the automatic feeding and discharging Demura detection device described above to realize automatic detection of the display panel, and specifically includes the following steps:

[0069] The three-axis movement member drives the first material clamping assembly 18 to clamp the display panel to be detected in the tray 7 of the full-tray feeding member 2.

[0070] According to the specification of the display panel to be detected, the display panel to be detected is transported and placed into the corresponding buffer area 9.

[0071] The multi-degree-of-freedom conveying member drives the second material clamping assembly 13 to clamp the display panel to be detected located in the buffer area 9, and places the display panel to be detected into the compression jig.

[0072] The AOI detection member 17 detects the display panel to be detected located in the compression jig to obtain the display panel after detection.

[0073] The multi-degree-of-freedom conveying member reciprocally takes the next display panel to be detected into the next compression jig, and clamps and conveys the display panel after detection to the transfer platform 8.

[0074] The three-axis motion member drives the first material clamping assembly 18 to convey the display panel after detection to the tray 7 of the full-tray discharge member 1.

[0075] The above steps are repeated until all the display panels to be detected are detected.

[0076] Further, in another preferred embodiment of the present application, the automatic feeding and discharging Demura detection method adopts an automatic feeding and discharging Demura detection device as shown in FIG. 2, which specifically comprises the following steps:

[0077] S1. The three-axis motion member drives the first material clamping assembly 18 to clamp the display panel to be detected in the tray 7 of the full-tray feeding member 2 of different models in sequence, and conveys the display panel to be detected of different models to the buffer area 9 on the corresponding transfer platform 8 in sequence.

[0078] S2. The switching assembly 10 on each transfer platform 8 drives the transfer platform 8 to move towards the multi-degree-of-freedom conveying member, and after the corresponding transfer platform 8 moves into position, the two multi-degree-of-freedom conveying members drive the second material clamping assembly 13 to clamp the display panel to be detected of the corresponding type located in the buffer area 9, respectively.

[0079] S3. The two multi-degree-of-freedom conveying members drive the second material clamping assembly 13 to drive the corresponding display panel to be detected to pass through the first alignment member 14, so as to ensure the position of the display panel to be detected on the second material clamping assembly 13.

[0080] S4. The two multi-degree-of-freedom conveying members drive the second material clamping assembly 13 to convey the corresponding display panel to be detected to the corresponding compression jig.

[0081] S5. Each compression jig compresses the display panel to be detected, and the AOI detection member 17 detects the display panel to be detected to obtain the display panel after detection. At the same time, the three-axis motion member drives the first material clamping assembly 18 to convey the next display panel to be detected to the corresponding transfer platform.

[0082] S6, the two multi-degree-of-freedom conveying members drive the second material clamping assembly 13 to take out the detected display panel from the corresponding compression jig respectively, and respectively transport the detected display panel to the empty buffer area 9 on the corresponding transfer platform 8, and after clamping and conveying the next display panel to be detected on the corresponding transfer platform 8, steps S3-S6 are repeated;

[0083] S7, the three-axis motion member drives the first material clamping assembly 18 to sequentially convey the detected display panel to the tray 7 of the full-tray discharging member 1, and then steps S1-S7 are repeated until all the display panels to be detected are detected.

[0084] The automatic feeding and discharging Demura detection device and method provided by the application are stable in operation, accurate in detection, and high in work efficiency. The full-tray discharging member 1, the full-tray feeding member 2, and the empty-tray feeding member 3 are arranged side by side at the same time, the tray 7 and the lifting unit are arranged in the three members, and the automatic feeding and discharging mechanism is reduced in occupied space, and the full-tray and empty-tray feeding and discharging are ensured. At the same time, the three-axis motion member capable of realizing multidirectional motion and the transfer platform 8 including at least two buffer areas 9 are adopted, so that the automatic feeding and discharging mechanism can realize mixed feeding and discharging and buffering of display panels of different models, and the multi-degree-of-freedom conveying member and the three-axis motion member can efficiently move, and the waiting time of the two members is reduced. In addition, the multi-degree-of-freedom conveying member arranged along the second direction and the detection mechanisms arranged on both sides of the multi-degree-of-freedom conveying member respectively can stably convey display panels of different models to the corresponding detection mechanisms, so that mixed detection of different display panels can be realized, the use efficiency of the multi-degree-of-freedom conveying member can be improved, the space occupied by the detection mechanisms and the multi-degree-of-freedom conveying member can be reduced, and the application has good use value and promotion prospect.

[0085] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the application, and is not used to limit the application, and any modification, equivalent replacement, and improvement made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. An automatic loading and unloading Demura inspection device, characterized by, The device comprises: an automatic feeding and discharging mechanism, which comprises at least one full-tray feeding member (2), at least one full-tray discharging member (1), and at least one feeding and discharging mechanical arm; each full-tray feeding member (2) and each full-tray discharging member (1) is arranged along a first direction, each full-tray feeding member (2) is provided with a plurality of tray plates (7) loaded with display panels to be detected, and each full-tray discharging member (1) is provided with a plurality of tray plates (7) loaded with display panels that have been detected; each feeding and discharging mechanical arm comprises a three-axis movement member and a first material clamping assembly (18) arranged on the three-axis movement member; a transfer transport mechanism, which comprises at least one transfer platform (8) and at least one multi-degree-of-freedom transport member, the transfer platform (8) comprises at least two buffer areas (9), and the multi-degree-of-freedom transport member is arranged along a second direction and is provided with a second material clamping assembly (13) thereon; a plurality of detection mechanisms, each detection mechanism is arranged on the two sides of the multi-degree-of-freedom transport member, and each detection mechanism comprises a compression jig and an AOI detection member (17), the compression jig is arranged along the first direction and is provided with a bearing table (15) thereon, and the AOI detection member (17) is arranged on the side of the compression jig away from the multi-degree-of-freedom transport member and is used for Demura detection of the display panels to be detected.

2. The automatic loading and unloading Demura inspection apparatus according to claim 1, wherein The automatic feeding and discharging mechanism further comprises at least one empty-tray feeding member (3), the empty-tray feeding member (3) is arranged on the side of the full-tray feeding member (2) away from the full-tray discharging member (1), and a plurality of empty tray plates (7) are placed in the empty-tray feeding member (3).

3. The automatic loading and unloading Demura inspection apparatus according to claim 2, wherein At least one wide-angle detection member (20) is arranged on the top end of the full-tray feeding member (2), and each wide-angle detection member (20) faces the display panels to be detected loaded in the tray plate (7).

4. The automatic loading and unloading Demura inspection apparatus according to any one of claims 1 to 3, wherein A tray plate (7) clamping member is further arranged on the three-axis movement member, and the tray plate (7) clamping member comprises an automatic clamp (6) adapted to the structure of the tray plate (7).

5. The automatic loading and unloading Demura inspection apparatus according to any one of claims 1 to 3, wherein The transfer transport mechanism further comprises at least one switching assembly (10), each switching assembly (10) comprises a switching movement end reciprocating along the second direction, and the transfer platform (8) is arranged on the switching movement end.

6. The automatic loading and unloading Demura inspection apparatus according to claim 5, wherein The transfer transport mechanism comprises two multi-degree-of-freedom transport members arranged at intervals along the first direction and two transfer platforms (8) arranged at intervals along the first direction.

7. The automatic loading and unloading Demura inspection apparatus according to any one of claims 1 to 3, 5, wherein At least one first alignment member (14) is arranged on the side of each multi-degree-of-freedom transport member facing the detection mechanism, a first alignment detection end is arranged on the top end face of the first alignment member (14), and the first alignment detection end faces the display panels to be detected clamped on the second material clamping assembly (13).

8. The automatic loading and unloading Demura inspection apparatus according to any one of claims 1 to 3, 5, wherein The top end surface of the bearing table (15) is provided with at least one bearing surface for bearing the display panel to be detected, and the bearing surface is provided with a horizontal moving cylinder, the moving end of the horizontal moving cylinder is provided with a bidirectional pressing cylinder, and the moving end of the bidirectional pressing cylinder is provided with a pressing block facing the bearing surface.

9. The automatic loading and unloading Demura inspection apparatus according to claim 8, wherein The pressing jig is provided with at least one second alignment member (19) on one side, and the second alignment detection end of the second alignment member (19) faces the bearing surface.

10. An automatic loading and unloading Demura detection method, characterized by, The automatic feeding and discharging Demura detection device according to any one of claims 1-9 is used to realize automatic detection, including the following steps: The three-axis motion member drives the first material clamping assembly (18) to clamp the display panel to be detected in the tray (7) in the full-tray feeding member (2); According to the specification of the display panel to be detected, the display panel to be detected is transported and placed in the corresponding buffer area (9); The multi-degree-of-freedom transportation member drives the second material clamping assembly (13) to clamp the display panel to be detected in the buffer area (9) and place the display panel to be detected in the pressing jig; The AOI detection member (17) detects the display panel to be detected in the pressing jig to obtain the detected display panel; The multi-degree-of-freedom transportation member reciprocally takes the next display panel to be detected into the next pressing jig, and clamps and transports the detected display panel to the transfer platform (8); The three-axis motion member drives the first material clamping assembly (18) to transport the detected display panel to the tray (7) of the full-tray discharging member (1); Repeat the above steps until all the display panels to be detected are detected.

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