Laser repair device and system based on two-dimensional turntable

Abstract

The present application relates to the technical field of OLED laser repair, and more specifically, to a laser repair device and system based on a two-dimensional turntable, including: a laser projection component; a two-dimensional turntable, which includes an azimuth electric shaft, a pitch electric shaft and a mounting portion, wherein the output end of the azimuth electric shaft is fixedly connected to the mounting portion, and the middle portion of the pitch electric shaft is rotatably connected to the mounting portion; a motion mechanism, wherein the mounting end of the azimuth electric shaft is mounted on the motion mechanism; an observation component, which is mounted on one shaft head of the pitch electric shaft; and a laser focusing component, which is mounted on the other shaft head of the pitch electric shaft. The laser repair device based on a two-dimensional turntable of the present application can solve the problems of small scanning range, slow scanning speed and low repair efficiency of the existing laser repair devices used for OLED panel repair, and has the advantages of large scanning range, high precision, fast speed and high repair efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of OLED laser repair, and in particular, to a laser repair device and system based on a two-dimensional turntable. Background Art

[0002] Existing laser repair devices for repairing defects on OLED display panels generally control the rotation of a fast-reflection mirror to allow the laser to scan the defect for defect repair. The scanning range is small and the scanning speed is slow. In addition, existing laser repair methods generally require moving the laser repair device to the approximate location of the defect based on a motion mechanism, obtaining an image of the defect to accurately locate the defect, and then using the motion mechanism to align the component in the laser repair device for projecting the laser with the defect before laser repair can be performed. The repair efficiency is low.

[0003] Therefore, the existing technology needs to be improved and developed. Summary of the invention

[0004] The purpose of this application is to provide a laser repair device and system based on a two-dimensional turntable, aiming to solve the problems of small scanning range, slow scanning speed and low repair efficiency of existing laser repair devices used for OLED panel repair.

[0005] In a first aspect, the present application provides a laser repair device based on a two-dimensional turntable, which is used to repair defects on the surface of an OLED display panel, comprising:

[0006] Laser projection assembly;

[0007] A two-dimensional turntable, comprising an azimuth electric rotating shaft, a pitch electric rotating shaft and a mounting portion, wherein the output end of the azimuth electric rotating shaft is fixedly connected to the mounting portion, and the middle portion of the pitch electric rotating shaft is rotatably connected to the mounting portion;

[0008] The moving mechanism, the mounting end of the azimuth electric rotating shaft is mounted on the moving mechanism, and the moving mechanism is used for horizontal displacement to drive the horizontal displacement of the two-dimensional turntable;

[0009] An observation component is installed on a shaft head of the pitch electric rotating shaft and is used to obtain a first image, where the first image is an image of the defect;

[0010] The laser focusing assembly is installed on the other shaft head of the pitch electric rotating shaft, and is used to receive the laser projected by the laser projection assembly and focus the laser for output.

[0011] The laser repair device based on a two-dimensional turntable provided in the present application can quickly scan defects to repair them, with fast scanning speed, large range and high accuracy. In addition, the laser repair device of the present application can use the two-dimensional turntable to quickly align the laser focusing component with the defect before performing laser scanning, thereby improving the repair efficiency.

[0012] Optionally, the laser projection assembly includes a laser source and a laser shaping continuous zoom lens arranged according to the laser optical path;

[0013] The laser shaping continuous zoom lens is used to make the laser form a flat-top spot on the surface of the OLED display panel and adjust the size of the flat-top spot.

[0014] In this embodiment, the laser repair device based on the two-dimensional turntable of the present application is provided with a laser shaping continuous zoom lens, which can convert the laser emitted by the laser source with a Gaussian intensity distribution into a laser with a uniform intensity distribution, so that the laser forms a flat-top spot on the surface of the OLED display panel, and each part of the defect can be repaired under the action of lasers with similar intensities, thereby improving the defect repair effect; and the present application can adjust the size of the flat-top spot as needed to adapt to a variety of defects with different areas, and compared with the slit light output method, the present application can make the laser completely output to the surface of the OLED display panel, so that the laser energy can be completely used for defect repair, which can avoid waste of laser energy.

[0015] Optionally, the observation component includes:

[0016] A first detection component, used to acquire a first image;

[0017] A second detection component is arranged on one side of the first detection component and is used to obtain a second image, where the second image is an image of a light spot projected on the surface of the OLED display panel;

[0018] The first bracket is mounted on an axis head of the pitch electric rotating shaft, and the first detection assembly and the second detection assembly are mounted on the first bracket.

[0019] In this embodiment, the laser repair device based on the two-dimensional turntable of the present application is provided with a first detection component, which can acquire a first image based on the first detection component after the observation component is aligned with the defect area on the surface of the OLED display panel, so as to facilitate the laser focusing component to focus and output the laser according to the position of the defect in the first image; and the present application is provided with a second detection component, which can realize real-time monitoring of the light spot on the surface of the OLED display panel during the defect repair process, so as to facilitate confirmation of the defect repair progress.

[0020] Optionally, the observation component also includes an illumination light source and a spectroscopic component, wherein the spectroscopic component is used to send the illumination light emitted by the illumination light source to the surface of the OLED display panel, and send the illumination light reflected by the OLED display panel to the first detection component and the second detection component.

[0021] Optionally, the optical axis of the illumination light is parallel to the optical axis of the laser, and the field of view range of the illumination light covers the beam range of the laser.

[0022] Optionally, a variable magnification focusing lens group is arranged between the first detection component and the light splitting component and between the second detection component and the light splitting component.

[0023] Optionally, the azimuth electric rotating shaft and the pitch electric rotating shaft are hollow shafts, the interior of the mounting portion has a cavity, and the azimuth electric rotating shaft, the pitch electric rotating shaft and the interior of the mounting portion are connected;

[0024] Laser focusing components include:

[0025] a first reflective member;

[0026] A laser focusing mechanism is installed on one side of the first reflecting element;

[0027] A second bracket is mounted on the other shaft head of the pitch electric rotating shaft, and the first reflector and the laser focusing mechanism are mounted on the second bracket;

[0028] A second reflector is installed in the middle of the pitch electric rotating shaft, and the first reflector is installed on one side of the second reflector;

[0029] The laser projection assembly is used to send the laser to the second reflector through the azimuth electric rotating shaft and the mounting part. The second reflector is used to reflect the laser projected by the laser projection assembly to the first reflector. The first reflector is used to reflect the laser reflected by the second reflector to the laser focusing mechanism.

[0030] In a second aspect, the present application provides a laser repair system based on a two-dimensional turntable, which is used to repair defects on the surface of an OLED display panel, including:

[0031] Laser projection assembly;

[0032] A two-dimensional turntable, comprising an azimuth electric rotating shaft, a pitch electric rotating shaft and a mounting portion, wherein the output end of the azimuth electric rotating shaft is fixedly connected to the mounting portion, and the middle portion of the pitch electric rotating shaft is rotatably connected to the mounting portion;

[0033] The moving mechanism, the mounting end of the azimuth electric rotating shaft is mounted on the moving mechanism, and the moving mechanism is used for horizontal displacement to drive the horizontal displacement of the two-dimensional turntable;

[0034] An observation component is installed on a shaft head of the pitch electric rotating shaft and is used to obtain a first image, where the first image is an image of the defect;

[0035] A laser focusing assembly is installed on another shaft head of the pitch electric rotating shaft, and is used to receive the laser projected by the laser projection assembly and focus the laser for output;

[0036] A controller, used for controlling the horizontal displacement of the motion mechanism according to the preliminary position information so as to drive the two-dimensional turntable to move horizontally to above the area where the defect is located on the surface of the OLED display panel;

[0037] The controller is also used to control the observation component to acquire a first image;

[0038] The controller is also used to obtain defect position information according to the first image;

[0039] The controller is also used to control the rotation of the azimuth electric rotating shaft and the pitch electric rotating shaft according to the defect position information so that the laser focusing component is aligned with the defect, and control the laser projection component to emit laser;

[0040] The controller is also used to control the rotation of the azimuth electric rotating shaft and the pitch electric rotating shaft so that the laser traverses the surface area of ​​the OLED display panel where the defect is located.

[0041] The laser repair system based on a two-dimensional turntable provided in the present application can quickly scan defects to repair them, with fast scanning speed, large range and high accuracy. In addition, the laser repair system of the present application can use the two-dimensional turntable to quickly align the laser focusing component with the defect before laser scanning, thereby improving the repair efficiency.

[0042] Optionally, the observation component is further used to obtain a third image, where the third image is an image of an area on the surface of the OLED display panel that has been subjected to defect repair processing;

[0043] The controller is also used to control the observation component to obtain a third image after controlling the azimuth electric rotating shaft and the pitch electric rotating shaft to rotate so that the laser traverses the scanning process of the surface area of ​​the OLED display panel where the defect is located;

[0044] The controller is also used to confirm whether the defect repair process is successful based on the third image, and when the defect repair process is unsuccessful, control the laser focusing component to focus and output the laser according to the location of the defect in the first image, and control the azimuth electric rotation axis and the pitch electric rotation axis to rotate so that the laser traverses and scans the surface area of ​​the OLED display panel where the defect is located.

[0045] Optionally, the laser repair system further comprises a cable;

[0046] A conductive slip ring is arranged on the two-dimensional turntable, and the controller is connected to the observation component through a cable passing through the conductive slip ring.

[0047] From the above, it can be seen that the present application provides a laser repair device and system based on a two-dimensional turntable, wherein the laser repair device based on a two-dimensional turntable provided by the present application can quickly scan defects for defect repair, with fast scanning speed, large range and high accuracy, and the laser repair device of the present application can use the two-dimensional turntable to quickly align the laser focusing component with the defect before performing laser scanning, thereby improving the repair efficiency.

[0048] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic structural diagram of a laser repair device based on a two-dimensional turntable provided in an embodiment of the present application.

[0050] Figure 2 A schematic diagram of the structure of a two-dimensional turntable provided in an embodiment of the present application.

[0051] Figure 3 A schematic diagram of the structure of the observation component provided in an embodiment of the present application.

[0052] Figure 4 A schematic diagram of the structure of the motion mechanism provided in an embodiment of the present application.

[0053] Figure 5 A schematic diagram of the structure of the connection between the controller and the observation component provided in an embodiment of the present application.

[0054] Figure 6 An electrical control framework diagram of a laser repair system based on a two-dimensional turntable provided in an embodiment of the present application.

[0055] Explanation of reference numerals: 1. Laser projection assembly; 11. Laser source; 12. Laser shaping continuous zoom lens; 13. Laser automatic attenuator; 14. Third reflector; 2. Two-dimensional turntable; 21. Azimuth electric rotation axis; 22. Pitch electric rotation axis; 23. Mounting part; 24. Second reflector; 25. Conductive slip ring; 3. Movement mechanism; 4. Observation assembly; 40. First bracket; 41. First detection assembly; 42. Second detection assembly; 43. Illumination light source; 44. Spectral assembly; 441. First spectroscope; 442. Second spectroscope; 45. Zoom and focus lens group; 46. Illumination collimator; 47. Reflector; 48. Center light-transmitting shading tube; 49. Reflective main optical system; 5. Laser focusing assembly; 50. Second bracket; 51. First reflector; 52. Laser focusing mechanism; 6. Controller; 7. Cable. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0057] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0058] First, as Figure 1 , Figure 2 and Figure 4 As shown, the present application provides a laser repair device based on a two-dimensional turntable, which is used to repair defects on the surface of an OLED display panel, including:

[0059] Laser projection component 1;

[0060] The two-dimensional turntable 2 comprises an azimuth electric rotating shaft 21, a pitch electric rotating shaft 22 and a mounting portion 23, wherein the output end of the azimuth electric rotating shaft 21 is fixedly connected to the mounting portion 23, and the middle portion of the pitch electric rotating shaft 22 is rotatably connected to the mounting portion 23;

[0061] The motion mechanism 3, the mounting end of the azimuth electric rotating shaft 21 is mounted on the motion mechanism 3, and the motion mechanism 3 is used for horizontal displacement to drive the horizontal displacement of the two-dimensional turntable 2;

[0062] An observation component 4 is installed on a shaft head of the pitch electric rotating shaft 22 and is used to obtain a first image, which is an image of a defect;

[0063] The laser focusing assembly 5 is installed on the other shaft head of the pitch electric rotating shaft 22, and is used to receive the laser projected by the laser projection assembly 1 and focus the laser for output.

[0064] Specifically, Figure 1 The part about the two-dimensional turntable is a front view of the two-dimensional turntable when the pitch electric rotation axis is adjusted to the output end of the laser focusing component 5 facing upward.

[0065] More specifically, Figure 2The dotted parts in the figure are the rotation axes of the azimuth electric rotation axis 21 and the pitch electric rotation axis 22 respectively. The direction of the rotation axis of the azimuth electric rotation axis 21 is the vertical direction, and the direction of the rotation axis of the pitch electric rotation axis 22 is the horizontal direction.

[0066] More specifically, the motion mechanism 3 of the present application can be horizontally displaced to above the defect area on the surface of the OLED display panel when defect repair is required, so that the observation component 4 is aligned with the defect area on the surface of the OLED display panel to obtain a first image.

[0067] More specifically, the coordinated rotation of the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22 can enable the laser focusing assembly 5 to focus the laser and output it to any position on the surface of the OLED display panel, thereby forming a light spot at any position on the surface of the OLED display panel, and because the motion mechanism 3 makes the two-dimensional turntable above the defect area on the surface of the OLED display panel, the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22 do not need to rotate too much to make the laser focusing assembly 5 align with the defect, so that when the laser focusing assembly 5 focuses the laser and outputs it, the light spot can accurately fall on the defect. In addition, after acquiring the first image, the defect alignment action of the laser focusing assembly 5 is only based on the rotation of the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22, and there is no need to control the motion mechanism 3 to move horizontally again. Therefore, the laser repair device of the present application can quickly align the laser focusing assembly 5 with the defect based on the two-dimensional turntable before performing laser scanning, thereby improving the repair efficiency.

[0068] More specifically, after the laser forms a light spot on the surface of the OLED display panel and when it is necessary to scan defects, it is only necessary to control the rotation of the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22 to change the position of the light spot and thus quickly scan the defects. The two-dimensional turntable 2 controls the length of the scanning path based on the rotation angle of the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22. Therefore, the present application only needs to control a small rotation of the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22 to achieve a larger range of scanning, which is suitable for defects with larger areas. The rotation speed of the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22 can reach 30 degrees per second, and the rotation accuracy is at the arc second level. Therefore, the present application can perform fast and high-precision scanning of defects based on the two-dimensional turntable.

[0069] The laser repair device based on a two-dimensional turntable of the present application can quickly scan defects to repair them, with fast scanning speed, large range and high accuracy. In addition, the laser repair device of the present application can use the two-dimensional turntable to quickly align the laser focusing component 5 with the defect before performing laser scanning, thereby improving the repair efficiency.

[0070] In some preferred embodiments, the laser projection assembly 1 includes a laser source 11 and a laser shaping continuous zoom lens 12 arranged according to the laser optical path;

[0071] The laser shaping continuous zoom lens 12 is used to make the laser form a flat-top spot on the surface of the OLED display panel and adjust the size of the flat-top spot.

[0072] Specifically, the laser shaping continuous zoom lens 12 can be an existing optical lens or a combination of optical lenses with continuous zoom and shaping functions.

[0073] In this embodiment, the laser repair device based on the two-dimensional turntable of the present application is provided with a laser shaping continuous zoom lens, which can convert the laser with a Gaussian intensity distribution emitted by the laser source 11 into a laser with a uniform intensity distribution, so that the laser forms a flat-top spot on the surface of the OLED display panel, and each part of the defect can be repaired under the action of lasers with similar intensities, thereby improving the defect repair effect; and the present application can adjust the size of the flat-top spot as needed to adapt to a variety of defects with different areas, and compared with the slit light output method, the present application can make the laser completely output to the surface of the OLED display panel, so that the laser energy can be completely used for defect repair, which can avoid waste of laser energy.

[0074] Preferably, the laser projection assembly 1 also includes a laser automatic attenuator 13 arranged between the laser source 11 and the laser shaping continuous zoom lens 12, and a third reflector 14 arranged behind the laser shaping continuous zoom lens 12, and the third reflector 14 is fixedly installed above the azimuth electric shaft 21.

[0075] More preferably, the third reflective element 14 is a fast reflective mirror.

[0076] like Figure 3 As shown, in some preferred embodiments, the observation component 4 includes:

[0077] A first detection component 41, used for acquiring a first image;

[0078] The second detection component 42 is disposed on one side of the first detection component 41 and is used to obtain a second image, where the second image is an image of a light spot projected on the surface of the OLED display panel;

[0079] The first bracket 40 is mounted on a shaft head of the pitch electric shaft 22 , and the first detection assembly 41 and the second detection assembly 42 are mounted on the first bracket 40 .

[0080] In this embodiment, the laser repair device based on the two-dimensional turntable of the present application is provided with a first detection component 41, which can acquire a first image based on the first detection component 41 after the observation component 4 is aligned with the defect area on the surface of the OLED display panel, so that the laser focusing component 5 can focus and output the laser according to the position of the defect in the first image; and the present application is provided with a second detection component 42, which can realize real-time monitoring of the light spot on the surface of the OLED display panel during the defect repair process, so as to facilitate confirmation of the defect repair progress.

[0081] In some preferred embodiments, the observation component 4 also includes an illumination light source 43 and a spectroscopic component 44, wherein the spectroscopic component 44 is used to send the illumination light emitted by the illumination light source 43 to the surface of the OLED display panel, and send the illumination light reflected by the OLED display panel to the first detection component 41 and the second detection component 42.

[0082] In this embodiment, the laser repair device based on the two-dimensional turntable of the present application is provided with an illumination light source 43 and a light splitting component 44, which can illuminate the surface of the OLED display panel and make the acquired first image and second image clearer and more reliable.

[0083] Preferably, an illumination collimator 46 and a reflector 47 are arranged in sequence between the illumination light source 43 and the light splitting component 44 according to the illumination light path.

[0084] Preferably, the light splitting component 44 includes:

[0085] A first beam splitter 441 is used to send the illumination light emitted by the illumination light source 43 to the surface of the OLED display panel, and send the illumination light reflected by the OLED display panel to the first detection component 41;

[0086] The second beam splitter 442 is used to send the illumination light emitted by the illumination light source 43 to the surface of the OLED display panel, and send the illumination light reflected by the OLED display panel to the second detection component 42 .

[0087] Preferably, a central light-transmitting light-shielding cylinder 48 and a reflective main optical system 49 are arranged in sequence after the light-splitting component 44 according to the illumination light path.

[0088] In some preferred embodiments, the optical axis of the illumination light is parallel to the optical axis of the laser, and the field of view of the illumination light covers the beam range of the laser.

[0089] Specifically, since the optical axis of the illumination light is parallel to the optical axis of the laser, and only a slight rotation of the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22 is required to align one axis head of the pitch electric rotating shaft 22 with the position where the other axis head is aligned before the pitch electric rotating shaft 22 is rotated, when the observation component 4 is aligned with the defect area on the surface of the OLED display panel, the illumination light source 43 emits illumination light to illuminate the defect and the first detection component 41 acquires the first image, the position of the surface of the OLED display panel aligned with the laser focusing component 5 remains within the range of the light spot formed by the illumination light, and the light spot formed by the illumination light falls on the defect at this time. Therefore, after acquiring the first image, only fine-tuning of the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22 is required to make the laser focusing component 5 quickly align with the defect. Therefore, in this embodiment, the laser repair device based on the two-dimensional turntable of the present application can improve the repair efficiency.

[0090] In some preferred embodiments, a variable magnification focusing lens group 45 is provided between the first detection component 41 and the light splitting component 44 and between the second detection component 42 and the light splitting component 44 .

[0091] Specifically, the variable magnification and focusing lens group 45 can be a combination of existing optical lenses with variable magnification and focusing functions.

[0092] In this embodiment, the laser repair device based on the two-dimensional turntable of the present application is provided with a variable magnification focusing lens group 45, which can make the images obtained by the first detection component 41 and the second detection component 42 clearer and more reliable.

[0093] Preferably, a reflector 47 is provided between the variable magnification and focusing lens group 45 and the light splitting component 44 after the second detection component 42 on the illumination light path.

[0094] In some preferred embodiments, the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22 are hollow shafts, the interior of the mounting portion 23 has a cavity, and the azimuth electric rotating shaft 21, the pitch electric rotating shaft 22 and the interior of the mounting portion 23 are connected;

[0095] The laser focusing assembly 5 comprises:

[0096] A first reflective member 51;

[0097] The laser focusing mechanism 52 is installed on one side of the first reflecting member 51;

[0098] A second bracket 50 is mounted on the other shaft head of the pitch electric rotating shaft 22, and a first reflector 51 and a laser focusing mechanism 52 are mounted on the second bracket 50;

[0099] A second reflective member 24 is installed in the middle of the pitch electric rotating shaft 22, and a first reflective member 51 is installed on one side of the second reflective member 24;

[0100] The laser projection assembly 1 is used to send the laser to the second reflector 24 through the azimuth electric rotating shaft 21 and the mounting portion 23. The second reflector 24 is used to reflect the laser projected by the laser projection assembly 1 to the first reflector 51. The first reflector 51 is used to reflect the laser reflected by the second reflector 24 to the laser focusing mechanism 52.

[0101] Specifically, the laser focusing mechanism 52 may be an existing mechanism capable of focusing laser light for output.

[0102] In this embodiment, the laser projection assembly 1 of the present application only needs to send the laser to the second reflector 24 through the azimuth electric rotating shaft 21 and the mounting portion 23, and can simply focus and output the laser from the axis head of the pitch electric rotating shaft 22 based on the first reflector 51 and the second reflector 24. In an embodiment in which the laser projection assembly 1 is not arranged on the two-dimensional turntable 2, the two-dimensional turntable 2 of the present application only needs to carry a small number of components and can rotate faster and more flexibly.

[0103] Preferably, the laser projection assembly 1 is used to transmit the laser to the second reflector 24 through the third reflector 14 , the azimuth electric shaft 21 and the mounting portion 23 .

[0104] Preferably, the first reflective element 51 and the second reflective element 24 are fast reflection mirrors.

[0105] Specifically, since the aiming accuracy of the fast reflex mirror is at a sub-arc second level, in this embodiment, the present application can control the scanning accuracy at a sub-microradian level based on the composite axis composed of the fast reflex mirror and the two-dimensional turntable 2 .

[0106] Second, as Figure 5 As shown, the present application provides a laser repair system based on a two-dimensional turntable, which is used to repair defects on the surface of an OLED display panel, including:

[0107] Laser projection component 1;

[0108] The two-dimensional turntable 2 comprises an azimuth electric rotating shaft 21, a pitch electric rotating shaft 22 and a mounting portion 23, wherein the output end of the azimuth electric rotating shaft 21 is fixedly connected to the mounting portion 23, and the middle portion of the pitch electric rotating shaft 22 is rotatably connected to the mounting portion 23;

[0109] The motion mechanism 3, the mounting end of the azimuth electric rotating shaft 21 is mounted on the motion mechanism 3, and the motion mechanism 3 is used for horizontal displacement to drive the horizontal displacement of the two-dimensional turntable 2;

[0110] An observation component 4 is installed on a shaft head of the pitch electric rotating shaft 22 and is used to obtain a first image, which is an image of a defect;

[0111] The laser focusing assembly 5 is installed on the other shaft head of the pitch electric rotating shaft 22, and is used to receive the laser projected by the laser projection assembly 1 and focus the laser for output;

[0112] A controller 6, configured to control the horizontal displacement of the motion mechanism 3 according to the preliminary position information so as to drive the two-dimensional turntable 2 to move horizontally to above the defect area on the surface of the OLED display panel;

[0113] The controller 6 is also used to control the observation component 4 to acquire a first image;

[0114] The controller 6 is also used to obtain defect position information according to the first image;

[0115] The controller 6 is also used to control the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22 to rotate according to the defect position information so that the laser focusing assembly 5 is aligned with the defect, and control the laser projection assembly 1 to emit laser;

[0116] The controller 6 is also used to control the rotation of the azimuth electric rotation axis 21 and the pitch electric rotation axis 22 so that the laser traverses the surface area of ​​the OLED display panel where the defect is located.

[0117] Specifically, the preliminary position information represents the approximate position of the defect, which may be preset information, or information obtained based on sensors on the supporting mechanism after the OLED display panel is placed on the supporting mechanism included in the laser repair system. The defect position information represents the position of the defect on the surface of the OLED display panel.

[0118] More specifically, the defect position represented by the defect position information is more accurate than the defect position represented by the preliminary position information. Therefore, the present application controls the horizontal displacement of the motion mechanism 3 based on the preliminary position information to drive the two-dimensional turntable 2 to move horizontally to above the defect area on the surface of the OLED display panel, so as to facilitate the observation component 4 to align with the defect area on the surface of the OLED display panel to obtain the first image, and the present application controls the laser focusing component 5 to focus and output the laser according to the position of the defect in the first image, so that the light spot can fall accurately on the defect, and there is no need to control the motion mechanism 3 to move horizontally again.

[0119] The laser repair system based on a two-dimensional turntable of the present application can quickly scan defects to repair them, with fast scanning speed, large range and high accuracy. In addition, the laser repair system of the present application can use the two-dimensional turntable to quickly align the laser focusing component 5 with the defect before laser scanning, thereby improving the repair efficiency.

[0120] In some preferred embodiments, the observation component 4 is further used to obtain a third image, which is an image of an area on the surface of the OLED display panel that has been subjected to defect repair processing;

[0121] The controller 6 is also used to control the observation component 4 to obtain a third image after controlling the azimuth electric rotating shaft 21 and the pitch electric rotating shaft 22 to rotate so that the laser traverses the surface area of ​​the OLED display panel where the defect is located;

[0122] The controller 6 is also used to confirm whether the defect repair process is successful based on the third image, and when the defect repair process is unsuccessful, control the laser focusing component 5 to focus and output the laser according to the location of the defect in the first image, and control the azimuth electric rotation axis 21 and the pitch electric rotation axis 22 to rotate so that the laser traverses and scans the surface area of ​​the OLED display panel where the defect is located.

[0123] In this embodiment, the two-dimensional turntable-based laser repair system of the present application can confirm whether the defect repair process is successful, and can re-repair the defect when it is confirmed that the defect repair process is unsuccessful, thereby improving the success rate of the defect repair process.

[0124] Preferably, the first detection component 41 is further used to obtain a third image, which is an image of an area on the surface of the OLED display panel that has been subjected to defect repair processing;

[0125] The process of controlling the observation component 4 to obtain the third image includes:

[0126] The first detection component 41 is controlled to acquire a third image.

[0127] like Figure 6 As shown, in some preferred embodiments, the laser repair system further comprises a cable 7;

[0128] A conductive slip ring 25 is provided on the two-dimensional turntable 2 , and the controller 6 is connected to the observation component 4 via a cable 7 passing through the conductive slip ring 25 .

[0129] In this embodiment, the laser repair system based on the two-dimensional turntable of the present application is provided with a conductive slip ring 25, which can ensure that the azimuth electric rotation axis 21 and the pitch electric rotation axis 22 will not cause problems such as cable 7 entanglement and cable 7 wear when they produce large rotations.

[0130] From the above, it can be seen that the present application provides a laser repair device and system based on a two-dimensional turntable, wherein the laser repair device based on a two-dimensional turntable provided by the present application can quickly scan defects for defect repair, with fast scanning speed, large range and high accuracy, and the laser repair device of the present application can use the two-dimensional turntable to quickly align the laser focusing component 5 with the defect before performing laser scanning, thereby improving the repair efficiency.

[0131] In the embodiments provided in the present application, it should be understood that, herein, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0132] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A laser repair device based on a two-dimensional turntable, used to repair defects on the surface of an OLED display panel, characterized in that: include: Laser projection assembly (1); A two-dimensional turntable (2), comprising an azimuth electric rotating shaft (21), a pitch electric rotating shaft (22) and a mounting portion (23), wherein the output end of the azimuth electric rotating shaft (21) is fixedly connected to the mounting portion (23), and the middle portion of the pitch electric rotating shaft (22) is rotatably connected to the mounting portion (23); A motion mechanism (3), wherein the mounting end of the azimuth electric rotating shaft (21) is mounted on the motion mechanism (3), and the motion mechanism (3) is used for horizontal displacement to drive the two-dimensional turntable (2) to move horizontally; An observation component (4) mounted on a shaft head of the pitch electric rotating shaft (22) and used for acquiring a first image, wherein the first image is an image of the defect; A laser focusing assembly (5) is mounted on another shaft head of the pitch electric rotating shaft (22) and is used to receive the laser projected by the laser projection assembly (1) and focus the laser for output; The azimuth electric rotating shaft (21) and the pitch electric rotating shaft (22) are hollow shafts, the mounting portion (23) has a cavity inside, and the azimuth electric rotating shaft (21), the pitch electric rotating shaft (22) and the mounting portion (23) are internally connected; The laser focusing assembly (5) comprises: A first reflective member (51); A laser focusing mechanism (52) mounted on one side of the first reflecting element (51); A second bracket (50) is mounted on the other shaft head of the pitch electric rotating shaft (22), and the first reflector (51) and the laser focusing mechanism (52) are mounted on the second bracket (50); A second reflective member (24) is installed in the middle of the pitch electric rotating shaft (22), and the first reflective member (51) is installed on one side of the second reflective member (24); The laser projection assembly (1) is used to transmit laser light to the second reflector (24) via the azimuth electric rotating shaft (21) and the mounting portion (23); the second reflector (24) is used to reflect the laser light projected by the laser projection assembly (1) to the first reflector (51); and the first reflector (51) is used to reflect the laser light reflected by the second reflector (24) to the laser focusing mechanism (52).

2. The laser repair device based on a two-dimensional turntable according to claim 1 is characterized in that: The laser projection assembly (1) comprises a laser source (11) and a laser shaping continuous zoom lens (12) arranged according to the laser optical path; The laser shaping continuous zoom lens (12) is used to enable the laser to form a flat-top light spot on the surface of the OLED display panel and to adjust the size of the flat-top light spot.

3. The laser repair device based on a two-dimensional turntable according to claim 1 is characterized in that: The observation component (4) comprises: A first detection component (41), used for acquiring a first image; A second detection component (42) is arranged on a side of the first detection component (41) and is used to obtain a second image, wherein the second image is an image of a light spot projected on a surface of the OLED display panel; A first bracket (40) is mounted on a shaft head of the pitch electric rotating shaft (22); and the first detection assembly (41) and the second detection assembly (42) are mounted on the first bracket (40).

4. The laser repair device based on a two-dimensional turntable according to claim 3 is characterized in that: The observation component (4) further comprises an illumination light source (43) and a light splitting component (44), wherein the light splitting component (44) is used to send illumination light emitted by the illumination light source (43) to the surface of the OLED display panel, and to send illumination light reflected by the OLED display panel to the first detection component (41) and the second detection component (42).

5. The laser repair device based on a two-dimensional turntable according to claim 4 is characterized in that: The optical axis of the illumination light is parallel to the optical axis of the laser, and the field of view of the illumination light covers the beam range of the laser.

6. The laser repair device based on a two-dimensional turntable according to claim 4 is characterized in that: A variable magnification focusing lens group (45) is provided between the first detection component (41) and the light splitting component (44), and between the second detection component (42) and the light splitting component (44).

7. A laser repair system based on a two-dimensional turntable, used to repair defects on the surface of an OLED display panel, characterized in that: include: Laser projection assembly (1); A two-dimensional turntable (2), comprising an azimuth electric rotating shaft (21), a pitch electric rotating shaft (22) and a mounting portion (23), wherein the output end of the azimuth electric rotating shaft (21) is fixedly connected to the mounting portion (23), and the middle portion of the pitch electric rotating shaft (22) is rotatably connected to the mounting portion (23); A motion mechanism (3), wherein the mounting end of the azimuth electric rotating shaft (21) is mounted on the motion mechanism (3), and the motion mechanism (3) is used for horizontal displacement to drive the two-dimensional turntable (2) to move horizontally; An observation component (4) mounted on a shaft head of the pitch electric rotating shaft (22) and used for acquiring a first image, wherein the first image is an image of the defect; A laser focusing assembly (5) is mounted on another shaft head of the pitch electric rotating shaft (22) and is used to receive the laser projected by the laser projection assembly (1) and focus the laser for output; The azimuth electric rotating shaft (21) and the pitch electric rotating shaft (22) are hollow shafts, the mounting portion (23) has a cavity inside, and the azimuth electric rotating shaft (21), the pitch electric rotating shaft (22) and the mounting portion (23) are internally connected; The laser focusing assembly (5) comprises: A first reflective member (51); A laser focusing mechanism (52) mounted on one side of the first reflecting element (51); A second bracket (50) is mounted on the other shaft head of the pitch electric rotating shaft (22), and the first reflector (51) and the laser focusing mechanism (52) are mounted on the second bracket (50); A second reflective member (24) is installed in the middle of the pitch electric rotating shaft (22), and the first reflective member (51) is installed on one side of the second reflective member (24); The laser projection assembly (1) is used to transmit laser light to the second reflector (24) through the azimuth electric rotating shaft (21) and the mounting portion (23); the second reflector (24) is used to reflect the laser light projected by the laser projection assembly (1) to the first reflector (51); and the first reflector (51) is used to reflect the laser light reflected by the second reflector (24) to the laser focusing mechanism (52); A controller (6) is used to control the horizontal displacement of the motion mechanism (3) according to the preliminary position information so as to drive the two-dimensional turntable (2) to move horizontally to a position above the defect area on the surface of the OLED display panel; The controller (6) is also used to control the observation component (4) to acquire a first image; The controller (6) is further used to obtain defect position information according to the first image; The controller (6) is also used to control the rotation of the azimuth electric rotating shaft (21) and the pitch electric rotating shaft (22) according to the defect position information so that the laser focusing component (5) is aligned with the defect, and to control the laser projection component (1) to emit laser; The controller (6) is also used to control the rotation of the azimuth electric rotating shaft (21) and the elevation electric rotating shaft (22) so that the laser traverses and scans the surface area of ​​the OLED display panel where the defect is located.

8. The laser repair system based on a two-dimensional turntable according to claim 7, characterized in that: The observation component (4) is also used to obtain a third image, wherein the third image is an image of an area on the surface of the OLED display panel that has undergone defect repair processing; The controller (6) is further used to control the observation component (4) to acquire a third image after the process of controlling the azimuth electric rotating shaft (21) and the elevation electric rotating shaft (22) to rotate so that the laser traverses and scans the surface area of ​​the OLED display panel where the defect is located; The controller (6) is also used to confirm whether the defect repair process is successful based on the third image, and when the defect repair process is unsuccessful, control the laser focusing component (5) to focus and output the laser based on the location of the defect in the first image, and control the azimuth electric rotating shaft (21) and the pitch electric rotating shaft (22) to rotate so that the laser traverses and scans the surface area of ​​the OLED display panel where the defect is located.

9. The laser repair system based on a two-dimensional turntable according to claim 7, characterized in that: The laser repair system also includes a cable (7); The two-dimensional turntable (2) is provided with a conductive slip ring (25), and the controller (6) is connected to the observation component (4) via a cable (7) passing through the conductive slip ring (25).

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