OLED screen body laser repairing device and defect repairing system

Abstract

The invention discloses an OLED screen body laser repairing device and a defect repairing system, and belongs to the technical field of OLED flexible display screen processing. The OLED screen body laser repairing device comprises a base, a portal frame, a repairing mechanism and a detection mechanism, the portal frame is fixedly arranged on the base, the repairing mechanism comprises a laser unit, the laser unit is used for repairing an OLED screen body, the detection mechanism is used for collecting defect information on the OLED screen body, and the detection mechanism and the repairing mechanism are arranged on the portal frame in a spaced mode. According to the OLED screen body laser repairing device and the defect repairing system, the portal frame is fixed on the base, so that the defect repairing process of the OLED screen body can be carried out in a mode that the portal frame is fixed, the repairing effect of the OLED screen body is improved, and the repairing efficiency and yield of the OLED screen body are improved.

Description

[0001] This application is a divisional application of the application with application number 2020108721422, application date August 26, 2020, and invention name 'Follow-up module, OLED screen laser repair device and method, and defect repair system'. Technical Field

[0002] The present invention relates to the technical field of OLED flexible display screen processing, and in particular to an OLED screen laser repair device and a defect repair system. Background Art

[0003] The biggest difference between OLED flexible displays and LCD displays is that OLED flexible displays can be bent and deformed to achieve curved displays. In addition, compared to LCD displays, OLED flexible displays have lower energy consumption and longer service life, and are one of the mainstream directions for the development of future display technology.

[0004] During the production process of OLED flexible displays, multiple inspection processes need to be performed to detect defective products as early as possible to avoid wasting costs. The inspection process generally includes substrate inspection, panel inspection, screen body inspection, etc. These inspection processes are distributed in various links of OLED flexible display production. Among them, after the defective products are detected, they can be simply graded and the repairable defective products can be repaired.

[0005] In the related field, a feasible repair method for OLED flexible display screens is usually laser repair. For example, a Chinese patent document with application number 2017213293601 discloses an OLED Cell defect repair device, which is provided with at least two parallel transport tracks with a movable carrier; and its movable laser repair device can move to the defective position according to the identity information of the corresponding OLEDCell to repair the OLED Cel1, and the inclination detection device and the lighting device can control the electrical contacts to move to the appropriate position according to the inclination of the position of the OLED Cell to be repaired on the mobile carrier detected by the inclination detection device, and accurately achieve electrical contact with the OLED Cell, thereby lighting up the OLED Cell to determine whether the repair is successful or not.

[0006] However, the laser repair device is heavy and has a relatively high center of gravity. Therefore, when the laser repair device moves to the defect position, the detection mechanism thereon is prone to large-scale vibration or jitter, making it difficult to accurately locate the defect on the screen. At the same time, after the laser repair device stops moving, it will continue to vibrate due to its own inertia, thereby reducing the repair effect of the laser mechanism of the laser repair device on the screen and reducing the yield of the repaired screen. Summary of the invention

[0007] The purpose of the embodiments of the present invention is to provide an OLED screen laser repair device and a defect repair system to improve the repair effect and efficiency of OLED screen defects.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] An OLED screen laser repair device, the OLED screen laser repair device comprising:

[0010] Base;

[0011] A gantry, wherein the gantry is fixedly arranged on the base;

[0012] A repair mechanism, comprising a laser unit, for repairing the OLED screen; and

[0013] A detection mechanism, used to collect defect information on the OLED screen;

[0014] Wherein, the detection mechanism and the repair mechanism are arranged on the gantry at intervals.

[0015] Optionally, there are two detection mechanisms.

[0016] Optionally, a follower module is also included, which is used to carry and transport the OLED screen so that the defect on the OLED screen is directly opposite to the laser unit.

[0017] Optionally, the follower module includes a first sliding rail, a movable platform and a lighting mechanism, the first sliding rail is arranged along a first direction, and the movable platform and the lighting mechanism are slidably arranged on the first sliding rail.

[0018] Optionally, there are two follower modules, and the two follower modules are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

[0019] Optionally, a moving module is further included, wherein the moving module is arranged on the base, and the follower module is arranged on the moving module so as to be movable along a second direction relative to the moving module, wherein the second direction is perpendicular to the first direction.

[0020] Optionally, the moving module includes a second sliding rail, the second sliding rail is arranged along a second direction, and the first sliding rail is slidably arranged on the second sliding rail.

[0021] Optionally, the detection mechanism is a camera.

[0022] Optionally, the crossbeam of the gantry is arranged along the second direction, and the repair mechanism is arranged on the crossbeam and can slide along the second direction.

[0023] A defect repair system includes the OLED screen laser repair device as described in the above scheme.

[0024] The beneficial effects of the present invention are:

[0025] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0026] (1) The follower module of the present invention comprises a movable platform, a lighting mechanism and a first sliding rail arranged along a first direction, wherein the movable platform is used to carry an OLED screen, and the lighting mechanism is provided with an electrical contact for lighting the OLED screen; the movable platform and the lighting mechanism are detachably connected, and when the movable platform and the lighting mechanism are in a connected state, they can move synchronously on the first sliding rail to maintain the lighting state of the OLED screen, so that the defect repair process of the OLED screen can be carried out in a manner where the gantry is fixed, and the jitter or vibration of the laser unit caused by the movement of the gantry can be directly avoided, thereby improving the repair effect of the OLED screen and improving the yield of the OLED screen after repair.

[0027] (2) In the present invention, the movable platform and the lighting mechanism are detachably connected by electromagnetic connection, thereby realizing the conversion between synchronous motion and relative motion. Specifically, the connection / separation between the movable platform and the lighting mechanism is controlled by controlling the power on / off of the electromagnet on the movable platform or the lighting mechanism; or the detachable connection between the movable platform and the lighting mechanism is realized by a zero-point positioning mechanism. Therefore, during the movement, the movable platform or the lighting mechanism is stably connected, so that the electrical connection between the electrical contact and the OLED screen is stable, and the OLED screen can be stably and continuously lit.

[0028] (3) The laser repair device of the present invention has at least two follower modules that perform a repair phase while the other follower modules perform a preparation phase and / or a repair phase, thereby effectively shortening the interval between different follower modules performing OLED screen defect repairs alternately, thereby improving the efficiency of OLED screen defect repairs. At the same time, the OLED screen defect repair system including the laser repair device has a better laser repair effect on the OLED screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0030] Figure 1 A schematic diagram of the system structure for implementing the OLED screen laser repair method of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure of the laser repair device in the present invention;

[0032] Figure 3 It is a schematic diagram of the cooperation between the repair mechanism and the follower module in the present invention;

[0033] Figure 4 It is a structural schematic diagram of the follower module in the present invention;

[0034] Figure 5 It is a structural schematic diagram of the mobile platform of the present invention;

[0035] Figure 6 It is a structural schematic diagram of the XYθ positioning platform of the present invention;

[0036] Figure 7 It is a structural schematic diagram of the lighting mechanism of the present invention;

[0037] Figure 8 It is a schematic diagram of the matching relationship between the support arm and the lifting arm of the present invention;

[0038] Fig. 9 It is a schematic diagram of the matching relationship between the electric contact and the movable carrier of the present invention;

[0039] Fig.10 It is a schematic diagram of the coordination relationship between the movable platform and the lighting mechanism of the present invention;

[0040] Fig.11 It is a schematic diagram of the matching relationship between the movable carrier and the lighting mechanism of the present invention when they are in a separated state;

[0041] Fig.12 It is a structural schematic diagram of the locking hole of the present invention;

[0042] Fig.13 It is a structural schematic diagram of the locking mechanism of the present invention;

[0043] Fig.14 It is a structural schematic diagram of an electromagnetically connected laser repair device;

[0044] Fig.15 It is a schematic diagram of the cooperation between the repair mechanism and the follower module in the electromagnetic connection type laser repair device;

[0045] Fig.16 It is a schematic diagram of the matching relationship between the first connecting member and the second connecting member in the electromagnetic connection type laser repair device;

[0046] Fig.17 It is a schematic diagram of the matching relationship between the electric contact and the movable carrier in the electromagnetic connection type laser repair device;

[0047] Fig.18 This is a diagram of the coordination between the lighting mechanism and the locking mechanism in the electromagnetically connected laser repair device.

[0048] Explanation of the reference numerals in the schematic diagram: 100, laser repair device; 101, base; 102, chassis; 110, gantry; 111, bracket; 112, crossbeam; 120, follower module; 121, first sliding rail; 122, movable carrier; 1221, bearing surface; 1222, placement position; 1223, supporting edge; 1224, carrier sliding seat; 1225, fine adjustment mechanism; 1226, first connecting member; 1227, connecting hole; 123, lighting mechanism; 1231, supporting arm; 1232, Lifting arm; 1233, electrical contact; 1234, lighting sliding seat; 1235, locking hole; 1236, second connecting piece; 1237, connecting protrusion; 1238, buffer piece; 1239, backlight source; 124, locking mechanism; 1241, locking head; 1242, mounting seat; 1243, locking drive member; 130, moving module; 131, second sliding rail; 140, calibration mechanism; 150, repair mechanism; 160, detection mechanism; 200, material transfer device; 300, loading and unloading device. DETAILED DESCRIPTION

[0049] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.

[0050] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of implementation. The change or adjustment of their relative relationship should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0051] In the related field, laser repair technology is usually used to repair the OLED screen. Among them, a laser unit for generating laser light is slidably arranged on a movable gantry, and the laser unit can move in a first direction by moving the gantry, and move in a second direction by moving a sliding base slidably connected to the crossbeam of the gantry, thereby realizing the alignment process between the laser unit and the defect on the OLED screen, so the above repair method can be called a laser unit active laser repair method.

[0052] The reason why the commonly used laser unit active laser repair method is used to repair the OLED screen is that the length of the wiring harness used to supply power and / or transmit signals to the lighting mechanism is limited, and the lighting mechanism cannot be allowed to move directly to the material receiving position to carry the OLED screen. Therefore, the OLED screen is repaired directly using the laser unit active laser repair method without considering the length of the wiring harness or the stability of the connection between the OLED screen and the electrical contacts when the moving platform and the lighting mechanism move synchronously.

[0053] Specifically, the active laser repair method of the laser unit includes the following stages:

[0054] Preparation stage: the mobile carrier carrying the OLED screen and the lighting mechanism equipped with electrical contacts move relative to each other in a first direction and meet; then, the mobile carrier and the lighting mechanism are connected.

[0055] Repair phase: the electric contacts light up the OLED screen, and the gantry moves in a first direction relative to the OLED screen to align the laser unit with the defect of the OLED screen in the first direction, and by moving the sliding base along the second direction on the gantry, the laser unit on the sliding base is aligned with the defect of the OLED screen in the second direction; thereafter, the laser unit completes the repair of the defect.

[0056] End stage: The mobile stage returns to the material transfer position and the laser unit returns to the initial position.

[0057] There are many problems with the above-mentioned active alignment process of the laser unit. Among them, the problem that is most likely to have a negative impact on the repair effect of the OLED screen is that the gantry itself is heavy, which can easily cause the laser unit on it to shake or vibrate violently during movement, thereby reducing the accuracy of the alignment between the laser unit and the OLED screen. In addition, the high power consumption required to drive the heavy gantry to move frequently, the low displacement accuracy of the gantry relative to the OLED screen, and the long time it takes for a single gantry to move between multiple OLED screens will all reduce the efficiency / effect of OLED screen laser repair.

[0058] To solve the above problems, the present embodiment provides a method for laser repairing an OLED screen with a lighting mechanism following the movement of the lighting mechanism and the moving carrier relative to the laser unit, that is, the lighting mechanism moves synchronously with the moving carrier, so that the defects on the OLED screen are aligned with the laser unit, thereby directly avoiding the jitter or vibration of the laser unit.

[0059] Specifically, the repair method of this embodiment includes the following stages:

[0060] Preparation stage: the mobile carrier carrying the OLED screen and the lighting mechanism equipped with electrical contacts move relative to each other in a first direction and meet; then, the mobile carrier and the lighting mechanism are connected.

[0061] Repair phase: the electric contacts light up the OLED screen, the movable stage and the lighting mechanism move synchronously in the first direction so that the defect of the OLED screen is aligned with the laser unit in the first direction, and the relative distances between the movable stage, the lighting mechanism and the laser unit are adjusted in the second direction so that the defect of the OLED screen is aligned with the laser unit in the second direction; thereafter, the laser unit completes the repair of the defect.

[0062] Ending stage: the mobile carrier returns to the material transfer position and the lighting mechanism returns to the initial position.

[0063] It should be pointed out that the first direction referred to in this embodiment may be the direction of the line connecting the mobile platform and the lighting mechanism, such as the x direction indicated in the accompanying drawings; the second direction may be a direction perpendicular to the first direction and located within the motion plane of the mobile platform, such as the y direction indicated in the accompanying drawings; the third direction may be a direction perpendicular to the motion plane of the mobile platform, such as the z direction indicated in the accompanying drawings.

[0064] Obviously, the first direction, the second direction, or the third direction referred to in this embodiment are not a single direction, but two relative directions. For example, moving along the first direction can mean moving forward along the first direction or moving backward along the first direction, that is, moving along the first direction can mean moving along the x direction in the drawings or moving in the direction opposite to the x direction in the drawings, which is not contradictory.

[0065] As far as the repair stage is concerned, after the OLED screen is illuminated by the electrical contacts, in order to achieve synchronous movement of the mobile carrier carrying the OLED screen and the lighting mechanism equipped with electrical contacts in the first direction, the mobile carrier and the lighting mechanism can be connected detachably to achieve conversion between synchronous movement and relative movement.

[0066] Separable connection specifically means that the mobile platform and the lighting mechanism can be in a connected state or a separated state. When the mobile platform and the lighting mechanism are in a separated state, the mobile platform and the lighting mechanism can move relative to each other in the first direction, so that the mobile platform can transport the OLED screen between the laser repair device and its upstream and downstream processes; when the mobile platform and the lighting mechanism are in a connected state, the mobile platform and the lighting mechanism can move synchronously in the first direction.

[0067] It should be pointed out that the synchronous movement referred to in this embodiment means that when the movable platform and the lighting mechanism move in the first direction at the same time, the movable platform and the lighting mechanism remain relatively stationary in the first direction, thereby ensuring a stable electrical connection between the electrical contacts of the lighting mechanism and the OLED screen, preventing short circuits, open circuits, and poor contact between the electrical contacts and the OLED screen, thereby preventing the OLED screen from being unable to be repaired.

[0068] In order to ensure the stability of the electrical connection between the electrical contact and the OLED screen, the movable platform and the lighting mechanism are connected, and the two are positioned and limited, so that the movement of the two in the first direction is completely synchronized. Therefore, the detachable connection between the movable platform and the lighting mechanism can be electromagnetic connection, or it can be connected through a zero-point positioning mechanism, or it can be connected through other connection methods such as snap connection, interference connection, pin connection, etc.

[0069] When the mobile platform and the lighting mechanism are in a connected state, the synchronous movement of the two in the first direction can be achieved by the mobile platform pulling / pushing the lighting mechanism, or by the lighting mechanism pulling / pushing the mobile platform. In addition, the mobile platform and the lighting mechanism can move separately, and the speeds of the two in the first direction can be controlled to be the same.

[0070] In order to realize the movement of the movable platform and the lighting mechanism in the second direction, the movable platform and the lighting mechanism can be arranged on the same first sliding rail and formed into a follower module. In this case, the position of the OLED screen in the second direction can be adjusted by moving the follower module in the second direction, so that the defect on the OLED screen is aligned with the laser unit in the second direction.

[0071] The number of follower modules can be more than two, for example, two, three, or more. Therefore, when one follower module is executing the repair phase, the remaining follower modules can execute the preparation phase, or the end phase, or first execute the end phase and then the preparation phase. Compared with only one follower module, setting more than two follower modules allows the laser unit to repair different OLED screens without waiting for the follower module to complete the end phase and the preparation phase, thereby improving the repair efficiency of the repair method of this embodiment.

[0072] In addition, the relative distance between the movable stage and the lighting mechanism and the laser unit can also be adjusted by moving the laser unit in the second direction. Although this method still requires moving the laser unit, the gantry itself is fixed, so the jitter of the laser unit is relatively small, and the technical effect to be obtained by this embodiment can also be achieved.

[0073] In order to implement the above-mentioned repair method, this embodiment provides a corresponding OLED screen laser repair system.

[0074] the following,

[0075] As a specific example, Figure 1 The structure of the OLED screen laser repair system is shown, which specifically includes a laser repair device 100, a material transfer device 200, and a loading and unloading device 300. According to the step sequence of the entire repair method, the loading and unloading device 300 is first used to load the OLED screen, and then the material transfer device 200 is used to transfer the OLED screen to the laser repair device 100, the laser repair device 100 completes the repair of the OLED screen, and then the material transfer device 200 transfers the repaired OLED screen to the loading and unloading device 300, and finally the loading and unloading device 300 completes the classification and unloading of the OLED screen.

[0076] Figure 2 The structure of the laser repair device 100 in this embodiment is shown. The laser repair device 100 specifically includes a base 101, and a gantry 110, a mobile module 130 and a plurality of follower modules 120 arranged on the base 101. Among them, the gantry 110 is fixedly arranged on the base 101, and a calibration mechanism 140, a repair mechanism 150 and a detection mechanism 160 are arranged on the gantry 110. The laser unit of the repair mechanism 150 is used to repair the OLED screen; the calibration mechanism 140 is used to collect the relative position information of the OLED screen and the mobile platform 122; the detection mechanism 160 is used to collect the defect information on the OLED screen. The calibration mechanism 140 and the detection mechanism 160 can be cameras.

[0077] Specifically, in the preparation stage, when the mobile stage passes the position of the calibration mechanism, the calibration mechanism collects the relative position information of the OLED screen and the mobile stage, and the fine adjustment mechanism adjusts the relative position of the OLED screen and the electrical contact according to the relative position information of the OLED screen and the mobile stage.

[0078] Specifically, in the repair phase, when the mobile stage passes the location of the detection mechanism, the detection mechanism can be used to collect position information of defects on the OLED screen, and the defects of the OLED screen can be aligned with the laser unit based on the position information.

[0079] Figure 3The figure shows the coordination relationship between the repair mechanism 150 and the follower module 120 in this embodiment. The moving platform 122 and the lighting mechanism 123 of the follower module 120 can move synchronously in the first direction, and the follower module 120 can move in the second direction on the moving module 130, so that the repair mechanism 150 and the OLED screen carried by the follower module 120 can be aligned and positioned, and the repair process of the OLED screen by the repair mechanism 150 can be realized.

[0080] Figure 4 The specific structure of the follower module 120 in this embodiment is shown. Specifically, the follower module 120 may include a first sliding rail 121, a moving platform 122, and a lighting mechanism 123. The first sliding rail 121 may be arranged along a first direction, and the moving platform 122 and the lighting mechanism 123 are slidably arranged on the first sliding rail 121, so that the moving platform 122 and the lighting mechanism 123 have the possibility of moving along the first direction.

[0081] During the repair process, the defect of the OLED screen can be aligned with the laser unit in the first direction by moving the first slide rail in the second direction. Specifically, the moving module 130 includes a plurality of second slide rails 131 arranged along the second direction, such as two second slide rails 131, three second slide rails 131, or more second slide rails 131. The first slide rail 121 is slidably arranged on the second slide rail 131, and the alignment of the OLED screen carried on the moving stage 122 and the laser unit in the first direction is achieved by the first slide rail 121 sliding on the second slide rail 131 as a whole.

[0082] In this embodiment, two follower modules 120 are provided, and the two follower modules 120 are arranged side by side on the moving module 130. The two follower modules 120 can be moved alternately to the bottom of the repair mechanism 150, so that the moving platforms 122 on different follower modules 120 are moved to the positions corresponding to the laser units respectively.

[0083] Figure 5 The specific structure of the movable platform 122 in this example is shown. Specifically, the movable platform 122 may include a platform sliding seat 1224, a first connecting member 1226 and a bearing surface 1221. The platform sliding seat 1224 is slidably connected to the first sliding rail 121; the bearing surface 1221 is located on the platform sliding seat 1224 and is used to carry the OLED screen; the first connecting member 1226 is arranged on the side of the platform sliding seat 1224 facing the lighting mechanism 123 and is used to connect with the lighting mechanism 123.

[0084] The bearing surface 1221 is provided with a plurality of placement positions 1222. The sizes of different placement positions 1222 are different, but the side of all placement positions 1222 close to the lighting mechanism 123 is aligned, so as to facilitate the electric contact 1233 to light up OLED screens of different sizes. A support edge 1223 may be provided on the side of the bearing surface 1221 close to the lighting mechanism 123. The support edge 1223 may protrude from the bearing surface 1221 and is used to place the edge of the OLED screen in contact with the electric contact 1233. The support edge 1223 may be provided with microholes for adsorbing the OLED screen. In addition, a backlight strip for providing a light source may also be provided on the support edge 1223 to illuminate the OLED screen.

[0085] In order to fine-tune the relative position between the OLED screen and the electric contact 1233 and ensure the accuracy and stability of the electrical connection between the electric contact 1233 and the OLED screen, the mobile stage 122 of this embodiment is further provided with a fine-tune mechanism 1225. Specifically, the fine-tune mechanism 1225 can be provided on the stage sliding seat 1224, the bearing surface 1221 is provided on the moving end of the fine-tune mechanism 1225, and the position of the bearing surface 1221 relative to the electric contact 1233 is adjusted by the fine-tune mechanism 1225, thereby completing the fine-tune of the position between the electric contact 1233 and the OLED screen.

[0086] Among them, the fine-tuning mechanism 1225 may include a first fine-tuning rail and a second fine-tuning rail arranged perpendicular to each other, and a rotating axis. The first fine-tuning rail and the second fine-tuning rail are arranged perpendicular to each other, the first fine-tuning rail is slidably arranged on the carrier sliding seat 1224, the second fine-tuning rail is slidably arranged on the first fine-tuning rail, the rotating axis is arranged on the second fine-tuning rail, and the bearing surface 1221 is arranged on the rotating axis, so that the bearing surface 1221 can adjust the position and angle in two directions relative to the carrier sliding seat 1224, thereby realizing the adjustment of the relative position between the OLED screen body on the bearing surface 1221 and the electrical contact 1233.

[0087] In addition, refer to Figure 6 The fine adjustment mechanism 1225 of this embodiment may also be an XYθ positioning platform commonly used in the related field for finely adjusting the position of the object to be positioned in two directions, such as but not limited to the XYθ positioning platform disclosed in the Chinese patent document with application number 2018201100157. It should be noted that there is no limitation on the specific structure of the XYθ positioning platform, as long as the position of the bearing surface 1221 can be adjusted relative to the stage sliding seat 1224 in two directions.

[0088] Figure 7The structure of the lighting mechanism 123 of this embodiment is shown. Specifically, the lighting mechanism 123 may include a lighting sliding seat 1234, a second connecting member 1236 and an electric contact 1233. The lighting sliding seat 1234 is slidably connected to the first sliding rail 121; the second connecting member 1236 is arranged on the first sliding rail 121 on a side facing the movable platform 122, and cooperates with the first connecting member 1226 to realize the connection between the movable platform 122 and the lighting mechanism 123; the electric contact 1233 is arranged on the first sliding rail 121, and can move in a third direction relative to the first sliding rail 121, so that after the movable platform 122 and the lighting mechanism 123 are connected, the electric contact 1233 can move relative to the OLED screen and contact it to realize electrical connection.

[0089] Figure 8 The specific implementation method of the electric contact 1233 moving along the third direction relative to the lighting sliding seat 1234 is shown. Specifically, the lighting sliding seat 1234 is provided with a support arm 1231, and a lifting arm 1232 is slidably provided on the support arm 1231, and the electric contact 1233 is provided on the lifting arm 1232. The lifting arm 1232 is specifically driven by a lifting drive member provided on the support arm 1231 or the lighting sliding seat 1234, and the lifting drive member can be one of a cylinder, a hydraulic cylinder, and a motor, and there is no specific limitation, as long as the lifting arm 1232 can slide in the third direction.

[0090] Fig. 9 The figure shows the matching relationship between the electric contact 1233 and the movable platform 122. When the movable platform 122 and the lighting mechanism 123 are connected, the electric contact 1233 is located above the OLED screen. At this time, the lifting arm 1232 can be driven by the lifting drive member to move toward the OLED screen, and the electric contact 1233 is in contact with the OLED screen to achieve electrical connection.

[0091] Fig.10 The figure shows the matching relationship between the movable platform and the lighting mechanism. In this embodiment, the movable platform 122 and the lighting mechanism 123 can be connected by a snap-fit ​​connection, and specifically, the connection can be achieved by the matching of the connecting hole 1227 and the connecting protrusion 1237. A plurality of connecting claws that can move radially along the connecting protrusion 1237 are provided in the connecting hole 1227. When connected, when the connecting protrusion 1237 is inserted into the connecting hole 1227, the connecting claws can extend radially along the connecting protrusion 1237, and the connecting protrusion 1237 is clamped by the plurality of connecting claws.

[0092] In addition, the snap-fit ​​connection can be achieved by using a zero-point positioning mechanism, that is, a detachable connection can also be achieved through a zero-point positioning mechanism, which can specifically be a zero-point positioning mechanism commonly used in the relevant field to achieve the positioning connection between two components, such as but not limited to the zero-point positioning device disclosed in the Chinese patent document with application number 2019211271594. The specific structure of the zero-point positioning mechanism of this embodiment is not limited, as long as the connection between the movable platform 122 and the lighting mechanism 123 can be achieved.

[0093] As an implementation mode, the zero point positioning joint of the zero point positioning mechanism can be arranged on the first connecting member 1226, and the zero point positioning seat can be arranged on the second connecting member 1236; as another implementation mode, the zero point positioning joint can also be arranged on the second connecting member 1236, and the zero point positioning seat can be arranged on the first connecting member 1226. When connecting, after the zero point positioning joint is extended into the zero point positioning seat, the zero point positioning joint is clamped by the zero point positioning seat, either by air pressure, by oil pressure, or by mechanical force, so as to realize the connection between the movable carrier 122 and the lighting mechanism 123.

[0094] The specific process and corresponding principle of the zero-point positioning seat clamping the zero-point positioning joint can be implemented by referring to the solutions disclosed in the relevant field or in the manner recommended by the manufacturer, so this embodiment will not repeat the relevant content.

[0095] In order to improve the connection stability and positioning effect between the mobile platform 122 and the lighting mechanism 123, the zero-point positioning mechanism can be set to more than two groups, such as two groups, or three groups, or more groups. Specifically, the zero-point positioning seats of all zero-point positioning mechanisms can be set on the mobile platform 122; the zero-point chucks of all zero-point positioning mechanisms can also be set on the mobile platform 122; or a part of the zero-point positioning seats can be set on the mobile platform 122, and the other part of the zero-point positioning seats can be set on the lighting mechanism 123. There is no specific limitation on the setting method of the zero-point positioning mechanism.

[0096] Fig.11 The figure shows the matching relationship between the movable platform 122 and the lighting mechanism 123 in the separated state in this embodiment, that is, in the separated state, the lighting mechanism 123 cannot move in the first direction, that is, the lighting mechanism 123 can only be pulled / pushed by the movable platform 122 to move in the first direction.

[0097] Specifically, the carrier driving member can be a cylinder, a hydraulic cylinder, or a motor, and there is no limitation on the specific type of the carrier driving member. The lighting mechanism 123 is only slidably connected to the first sliding rail 121. When the moving carrier 122 and the lighting mechanism 123 are in a connected state, the moving carrier 122 can drive the lighting mechanism 123 to slide along the first sliding rail 121; when the moving carrier 122 and the lighting mechanism 123 are in a separated state, the lighting mechanism 123 stops on the first sliding rail 121, and its position in the first direction does not change.

[0098] When the movable platform 122 carries the OLED screen and moves toward the lighting mechanism 123, the movable platform 122 may contact the lighting mechanism 123, thereby causing the lighting mechanism 123 to move, making it difficult to accurately connect the movable platform 122 with the lighting mechanism 123. Therefore, when the movable platform 122 and the lighting mechanism 123 are in a separated state, the lighting mechanism 123 can be fixed on the first sliding rail 121, thereby facilitating the connection between the movable platform 122 and the lighting mechanism 123.

[0099] Fig.12 The structure of the locking hole 1235 in this embodiment is shown. Fig.13 The structure of the locking mechanism 124 in this embodiment is shown. Specifically, a locking hole 1235 can be provided on the lower side of the lighting sliding seat 1234, and the locking mechanism 124 is arranged below the lighting sliding seat 1234, for example, arranged on the first sliding rail 121. By extending and retracting the locking head 1241 on the locking mechanism 124, the locking mechanism 124 is matched with the locking hole 1235, and the locking mechanism 124 is locked / released for the lighting mechanism 123.

[0100] Fig.13 Specifically, the locking mechanism 124 may include a mounting seat 1242 and a locking driver 1243 disposed on the mounting seat 1242. The moving end of the locking driver 1243 is connected to the locking head 1241 to drive the locking head 1241 to extend and retract relative to the mounting seat 1242.

[0101] The locking hole 1235 can also be provided on the side or top surface of the lighting mechanism 123, for example, on the side of the support arm 1231. The position of the locking mechanism 124 corresponds to the position of the locking hole 1235, and the locking head 1241 is extended and retracted in a direction perpendicular to the first direction.

[0102] In addition, a locking head 1241 may be provided on the lighting mechanism 123, and a locking mechanism 124 for opening a locking hole 1235 may be provided at a position corresponding to the locking head 1241. For example, when the locking head 1241 is provided on the lower side of the lighting sliding seat 1234 of the lighting mechanism 123, the locking mechanism 124 may be provided on the first sliding rail 121, and the locking head 1241 may be provided toward the locking mechanism 124, and a locking hole 1235 may be provided on a side of the locking mechanism 124 facing the locking head 1241.

[0103] the following,

[0104] As a specific embodiment of another detachable connection between the movable platform 122 and the lighting mechanism 123, Fig.14 The structure of the laser repair device 100 in this embodiment is shown. The base 101 can be fixedly connected to the base frame 102; the gantry 110 can include two brackets 111 and a crossbeam 112 connected between the two brackets 111. The brackets 111 are fixedly connected to the base 101, and the crossbeam 112 is fixed relative to the base 101.

[0105] Fig.15 The figure shows the matching relationship between the repair mechanism 150 and the follower module 120 in this embodiment. The repair mechanism 150 is located above the follower module 120, and the laser unit of the repair mechanism 150 is arranged toward the follower module 120. The follower module 120 can move in the second direction relative to the laser unit on the moving module, and the moving platform 122 on the follower module 120 can move in the first direction along the first sliding rail 121 with the lighting mechanism 123. The moving platform 122 and the lighting mechanism 123 are detachably connected by electromagnetic connection.

[0106] Fig.16 The figure shows the matching relationship between the first connecting member 1226 and the second connecting member 1236 in this embodiment. Specifically, as an implementation mode, the first connecting member 1226 can be an electromagnet, which can generate magnetic force when powered on, so as to attract the second connecting member 1236 made of magnetic material or magnetizable material to the first connecting member 1226, thereby realizing the connection between the first connecting member 1226 and the second connecting member 1236; when the electromagnet is powered off, the first connecting member 1226 no longer has magnetic force, and the first connecting member 1226 and the second connecting member 1236 no longer attract each other, thereby realizing the separation of the movable platform 122 and the lighting mechanism 123.

[0107] As another embodiment, the second connecting member 1236 can be an electromagnet, and the first connecting member 1226 is made of magnetic material or magnetizable material, so that the second connecting member 1236 can attract the first connecting member 1226 when the power is on, and the first connecting member 1226 and the second connecting member 1236 are separated when the power is off.

[0108] In addition, the first connecting member 1226 and the second connecting member 1236 can both be electromagnets. When the first connecting member 1226 and the second connecting member 1236 are both powered on, they generate mutually attractive magnetic fields, thereby enabling the movable platform 122 and the lighting mechanism 123 to be attracted to each other.

[0109] Fig.17 The schematic diagram shows the matching relationship between the electric contact 1233 and the movable platform 122 in this embodiment. The electric contact 1233 can move relative to the movable platform 122 and cooperate with the movable platform 122 to press the OLED screen body to achieve electrical connection between the electric contact 1233 and the OLED screen body.

[0110] Fig.18 The figure shows the matching relationship between the lighting mechanism 123 and the locking mechanism 124 in this embodiment. When the lighting mechanism 123 and the movable platform 122 are in a separated state, the locking head 1241 of the locking mechanism 124 can extend into the locking hole 1235 of the lighting mechanism 123, thereby locking the lighting mechanism 123.

[0111] In addition, in this embodiment, a buffer 1238 may be provided between the lighting mechanism 123 and the movable platform 122 to mitigate the impact force of the movable platform 122 on the lighting mechanism 123 when the lighting mechanism 123 and the locking mechanism 124 meet. The buffer 1238 may be provided on the lighting mechanism 123, and the compressible end of the buffer 1238 is provided toward the movable platform 122; the buffer 1238 may also be provided on the movable platform 122, and the compressible end of the buffer 1238 is provided toward the lighting mechanism 123.

[0112] A backlight source 1239 may also be provided on the second connecting member 1236, and the backlight source 1239 is provided toward the electrical contact 1233. When the movable carrier 122 and the lighting mechanism 123 are connected, the supporting edge 1223 is located between the backlight source 1239 and the electrical contact 1233. When the OLED screen is lit, the backlight source 1239 is also lit to provide backlight to the OLED screen, thereby facilitating the detection mechanism 160 to detect the position of defects on the OLED screen.

[0113] the following,

[0114] As another embodiment of the mutual movement of the movable platform 122 and the lighting mechanism 123 in the first direction, the movable platform 122 can be driven to move by a platform driving member disposed on the first slide rail 121; the lighting mechanism 123 can be driven to move by a lighting driving mechanism disposed on the first slide rail 121. The lighting driving mechanism and the platform driving member can be cylinders, hydraulic cylinders, or motors, and there is no limitation on the specific types.

[0115] Therefore, when the movable platform 122 and the lighting mechanism 123 are in a separated state, the two can move separately and meet at any connection position between the material transfer position of the movable platform 122 and the initial position of the lighting mechanism 123, and complete the connection, thereby shortening the time of the preparation stage; after the repair stage is completed, the movable platform 122 and the lighting mechanism 123 can move in the opposite direction at the same time, the movable platform 122 returns to the material transfer position, and the lighting mechanism 123 returns to the initial position, thereby shortening the time of the end stage and further improving the repair efficiency.

[0116] When the movable platform 122 and the lighting mechanism 123 meet at the connection position, in order to improve the stability of the connection between the movable platform 122 and the lighting mechanism 123, a locking mechanism 124 can be set at a position corresponding to the connection position on the first sliding rail 121, and the lighting mechanism 123 can be locked or the movable platform 122 can be locked through the locking mechanism 124.

[0117] For a single follower module 120, the laser repair of the OLED screen using the repair system of this embodiment may include the following stages:

[0118] the following,

[0119] As another embodiment of the setting method of the fine-tuning mechanism 1225, the fine-tuning mechanism 1225 can be set on the lighting mechanism, so that the position between the OLED screen and the electrical contact 1233 can be adjusted by adjusting the lighting mechanism 123 through the fine-tuning mechanism 1225.

[0120] Specifically, the fine-tuning mechanism 1225 can be set on the lighting sliding seat 1234 of the lighting mechanism 123, and the support arm 1231 is set on the moving end of the fine-tuning mechanism 1225, and the position of the electric contact 1233 relative to the supporting surface 1221 is adjusted by the fine-tuning mechanism 1225, thereby completing the fine-tuning of the electric contact 1233 and the OLED screen.

[0121] Similarly, in this embodiment, the fine adjustment mechanism 1225 may include a first fine adjustment rail and a second fine adjustment rail, which are arranged perpendicular to each other. The second fine adjustment rail is used to adjust the position of the electrical contact 1233 in the first direction, and the first fine adjustment rail is used to adjust the position of the first fine adjustment rail in the second direction.

[0122] In addition, the fine adjustment mechanism 1225 may also be an XYθ positioning platform. The specific implementation method may refer to the aforementioned embodiment, which will not be described in detail.

[0123] Of course, while the fine adjustment mechanism 1225 is provided on the lighting mechanism 123, the fine adjustment mechanism 1225 can also be provided on the movable platform 122. At this time, the relative position of the electric contact 1233 and the OLED screen can be finely adjusted by adjusting the fine adjustment mechanism 1225 on the lighting mechanism 123 and the fine adjustment mechanism 1225 on the movable platform 122; the fine adjustment mechanism 1225 on the lighting mechanism 123 or the movable platform 122 can also be adjusted separately.

[0124] the following,

[0125] As another embodiment of the method of aligning the defect of the OLED screen with the laser unit in the second direction, the gantry 110 is fixedly arranged on the base 101, the crossbeam 112 of the gantry 110 is arranged along the second direction, and the repair mechanism 150 is arranged on the crossbeam 112 and can slide along the second direction. The follower module 120 is arranged below the crossbeam 112, and the first sliding rail 121 of the follower module 120 is arranged perpendicular to the crossbeam 112, and the moving platform 122 on the first sliding rail 121 can pull / push the lighting mechanism 123 to move in the first direction.

[0126] During the repair stage, the movable platform 122 moves with the OLED screen on the first sliding rail 121 to align the defect of the OLED screen with the beam 112 in the first direction; the repair mechanism 150 slides on the beam 112 along the second direction to align the laser unit with the defect of the OLED screen in the second direction.

[0127] More specifically, the loading and unloading device 300 has a feeding station F, a temporary storage station S and several unloading stations G. After the carrier tray loaded with several OLED screens arrives at the feeding station F, the OLED screens on the carrier tray are transferred away in turn by the material transfer device 200, and the empty carrier tray is transferred to the unloading station G; when there is an unfilled carrier tray in the unloading station G, the empty carrier tray is transferred to the temporary storage station S; when the unloading station G needs an empty carrier tray and the carrier tray of the feeding station F still has OLED screens, the empty carrier tray is taken out from the temporary storage station S and placed in the corresponding unloading station G.

[0128] In the related field, after the OLED screen is repaired, it is usually necessary to inspect the OLED screen and evaluate the repair effect, and the OLED screen is divided into several levels according to the results. Therefore, the loading and unloading device 300 of this embodiment is provided with three unloading stations G, namely, unloading station G1, unloading station G2 and unloading station G3, corresponding to three different levels respectively. Of course, there is no limit to the number of unloading stations G, and different numbers of unloading stations G can be set according to the specific implementation situation.

[0129] The material transfer device 200 may include a plurality of storage stations for placing / transporting OLED screens, and a transfer mechanism capable of transferring OLED screens on different storage stations. The transfer mechanism may be a four-axis manipulator, a five-axis manipulator, a six-axis manipulator, or a mechanism commonly used in the related field for transferring OLED screens. There is no specific limitation on the structure of the transfer mechanism, and there is no specific limitation on the number of the transfer mechanisms.

[0130] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. An OLED screen laser repair device, characterized in that: The OLED screen laser repair device (100) comprises: Base (101); A gantry (110), wherein the gantry (110) is fixedly arranged on the base (101); A repair mechanism (150), comprising a laser unit, wherein the laser unit is used to repair the OLED screen; and A detection mechanism (160), used for collecting defect information on the OLED screen; The detection mechanism (160) and the repair mechanism (150) are arranged on the gantry (110) at intervals.

2. The OLED screen laser repair device according to claim 1, characterized in that: There are two detection mechanisms (160).

3. The OLED screen laser repair device according to claim 1, characterized in that: It also includes a follower module (120) for carrying and conveying the OLED screen so that the defect on the OLED screen is directly opposite to the laser unit.

4. The OLED screen laser repair device according to claim 3, characterized in that: The follower module (120) comprises a first sliding rail (121), a movable platform (122) and a lighting mechanism (123); the first sliding rail (121) is arranged along a first direction; the movable platform (122) and the lighting mechanism (123) are slidably arranged on the first sliding rail (121).

5. The OLED screen laser repair device according to claim 4, characterized in that: There are two follower modules (120), and the two follower modules (120) are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

6. The OLED screen laser repair device according to claim 4, characterized in that: The invention also comprises a movable module (130), wherein the movable module (130) is arranged on the base (101), and the follower module (120) is arranged on the movable module (130) so as to be movable along a second direction relative to the movable module (130), wherein the second direction is perpendicular to the first direction.

7. The OLED screen laser repair device according to claim 6, characterized in that: The movable module (130) comprises a second sliding rail (131), the second sliding rail (131) is arranged along a second direction, and the first sliding rail (121) is slidably arranged on the second sliding rail (131).

8. The OLED screen laser repair device according to claim 1, characterized in that: The detection mechanism (160) is a camera.

9. The OLED screen laser repair device according to claim 1, characterized in that: The crossbeam (112) of the gantry (110) is arranged along a second direction, and the repair mechanism (150) is arranged on the crossbeam (112) and can slide along the second direction.

10. A defect repair system, characterized in that: An OLED screen laser repair device (100) comprising any one of claims 1 to 9.

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