Laser repairing device for display screen

Abstract

The utility model relates to the technical field of display repair, and discloses a laser repair device for a display screen, which can detect and judge whether bright spot repair is needed in real time and reduce the influence of external vibration on a processing table. The device comprises a base, the machining table is arranged on the base, and a vibration reduction assembly is arranged between the base and the machining table; the displacement driving mechanism is arranged on the machining table; the objective table is arranged on the displacement driving mechanism, and the displacement driving mechanism is used for driving the objective table to move in the X-axis direction and the Y-axis direction; the lifting mechanism is arranged on the machining table; the detection camera is arranged on the lifting mechanism, and the lifting mechanism is used for driving the detection camera to move in the Z-axis direction; and the laser device is arranged above the processing table and is used for providing laser.

Description

Technical Field

[0001] The utility model relates to the technical field of display repair, in particular to a laser repair device for a display screen. Background Art

[0002] Micro displays (Micro OLED) are widely used in products such as VR glasses and flexible wearables. Their production process is very complex. During the manufacturing process, point defects will inevitably occur due to process errors. Point defects include bright spots and dark spots. Among them, the human eye is more sensitive to bright spots. Therefore, it is generally necessary to detect and repair bright spots.

[0003] Most of the existing laser repair devices use manual methods for detection, with low detection efficiency. The repair device cannot operate continuously, resulting in low overall production efficiency. At the same time, during long-term operation, the repair device is easily affected by vibrations brought by other equipment, resulting in a decrease in repair accuracy and a low product yield rate. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a laser repair device for a display screen, which can automatically detect and repair bright spots while reducing the influence of external vibrations on the laser repair device.

[0005] A laser repair device for a display screen according to an embodiment of the utility model includes a base; a processing table provided on the base, with a vibration damping component provided between the base and the processing table; a displacement driving mechanism provided on the processing table; a carrier table provided on the displacement driving mechanism, and the displacement driving mechanism is used to drive the carrier table to displace in the X-axis and Y-axis directions; a lifting mechanism provided on the processing table; a detection camera provided on the lifting mechanism, and the lifting mechanism is used to drive the detection camera to move along the Z-axis direction; a laser provided above the processing table, and the laser is used to provide laser.

[0006] According to some embodiments of the utility model, the vibration damping component includes three first shock absorbers and several second shock absorbers, and the three first shock absorbers and several second shock absorbers are arranged in an array on the base along the X-axis and the Y-axis.

[0007] According to some embodiments of the utility model, a leveling valve is provided on the first shock absorber, and the three first shock absorbers are distributed at three diagonal corners of the bottom end surface of the processing table.

[0008] According to some embodiments of the utility model, the processing table includes:

[0009] A platform provided on the base, and the displacement driving mechanism is provided on the platform;

[0010] Two columns are respectively arranged on both sides of the upper end surface of the platform;

[0011] A cross beam, with both sides respectively connected to the upper end surfaces of the two columns, and the lifting mechanism is arranged on the cross beam.

[0012] According to some embodiments of the present invention, the platform, the columns and the cross beam are all made of marble.

[0013] According to some embodiments of the present invention, the displacement driving mechanism includes:

[0014] A Y-axis displacement assembly, including a first mounting plate, a first motor, a first linear guide rail and a Y-axis carrier plate. The first mounting plate is arranged on the processing table, the first motor and the first linear guide rail are both arranged on the first mounting plate, the Y-axis carrier plate is movably connected to the first linear guide rail, the first linear guide rail is arranged along the Y-axis direction, and the first motor is used to drive the Y-axis carrier plate to displace along the Y-axis;

[0015] An X-axis displacement assembly: including a second mounting plate, a second motor, a second linear guide rail and an X-axis carrier plate. The second mounting plate is arranged on the Y-axis carrier plate, the second motor and the second linear guide rail are both arranged on the second mounting plate, the X-axis carrier plate is movably connected to the second linear guide rail, the second linear guide rail is arranged along the X-axis direction, the second motor is used to drive the X-axis carrier plate to displace along the X-axis direction, and the loading table is arranged on the X-axis carrier plate.

[0016] According to some embodiments of the present invention, limit blocks are arranged on both the first mounting plate and the second mounting plate.

[0017] According to some embodiments of the present invention, the lifting mechanism includes:

[0018] A bottom plate, arranged on the processing table;

[0019] A stepping motor, arranged on the bottom plate;

[0020] A ball screw, connected to the output end of the stepping motor;

[0021] A Z-axis carrier plate, movably connected to the ball screw.

[0022] According to some embodiments of the present invention, the lifting mechanism further includes a photoelectric sensor, and the photoelectric sensor is used to detect the displacement stroke of the Z-axis carrier plate.

[0023] According to some embodiments of the present invention, a sealed light box is further included, and the sealed light box is arranged on the processing table to block the laser scattering generated by the laser.

[0024] The embodiments of the present utility model at least have the following beneficial effects: The display screen is detected in real time by a detection camera, and it is judged whether highlight repair is needed. At the same time, a multi-axial movement of the carrier table and the laser is realized through a displacement driving mechanism and a lifting mechanism to adjust the processing position and height of the display screen. Moreover, a vibration isolation component between the processing table and the base is used to isolate and reduce the influence of external vibration on the processing table, so as to meet the requirements of long-term stable processing. The whole process is automatically completed without frequent startup and shutdown operations, improving the detection efficiency and production efficiency.

[0025] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0027] Figure 1 is a schematic structural diagram of a laser repair device for a display screen according to an embodiment of the present utility model;

[0028] Figure 2 is a schematic structural diagram of a processing table according to an embodiment of the present utility model;

[0029] Figure 3 is a schematic structural diagram of a Y-axis displacement assembly according to an embodiment of the present utility model;

[0030] Figure 4 is a schematic structural diagram of an X-axis displacement assembly according to an embodiment of the present utility model;

[0031] Figure 5 is a schematic structural diagram of a lifting mechanism according to an embodiment of the present utility model;

[0032] Figure 6 is a schematic structural diagram of a first shock absorber according to an embodiment of the present utility model.

[0033] REFERENCE MARKS

[0034] Label Name Label Name Label Name Label Name 100 Base 320 Second shock absorber 600 Y-axis displacement component 720 Second motor 200 Processing table 400 Carrier table 610 First mounting plate 730 Second linear guide 210 Platform 500 Lifting mechanism 620 First motor 740 X-axis carrier plate 220 Column 510 Base plate 630 First linear guide 800 Detection camera 230 Cross beam 520 Stepper motor 640 Y-axis carrier plate 900 Sealed light box 300 Shock absorption component 530 Ball screw 650 Limit block 310 First shock absorber 540 Z-axis carrier plate 700 X-axis displacement component 311 Leveling valve 550 Photoelectric sensor 710 Second mounting plate DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings to fully understand the purpose, solution and effects of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0036] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the descriptions such as up, down, left, right, top, bottom, etc. used in the present utility model are only relative to the mutual positional relationship of the various components of the present utility model in the attached drawings.

[0037] It should be noted that, unless otherwise specified, when a feature is referred to as being "electrically connected" or "electrically coupled" to another feature, the two features can be directly connected by pins, or connected by a cable, or connected by means of wireless transmission. The specific electrical connection method is a common method for those skilled in the art, and those skilled in the art can achieve the connection according to needs.

[0038] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this technology belongs. The terms used in the description of this specification are only for describing specific embodiments, and are not intended to limit the present utility model. The term "and / or" used herein includes any combination of one or more of the related listed items.

[0039] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, without departing from the scope of this disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0040] Referring to Figure 1 , a laser repair device for a display screen according to an embodiment of the present utility model includes a base 100; a processing table 200 provided on the base 100, with a vibration damping assembly 300 provided between the base 100 and the processing table 200; a displacement driving mechanism provided on the processing table 200; a carrier table 400 provided on the displacement driving mechanism, the displacement driving mechanism being configured to drive the carrier table 400 to displace in the X-axis and Y-axis directions; a lifting mechanism 500 provided on the processing table 200; a detection camera 800 provided on the lifting mechanism 500, the lifting mechanism 500 being configured to drive the detection camera 800 to move along the Z-axis direction; and a laser provided above the processing table 200, the laser being configured to provide laser light.

[0041] During the production process of applying the above embodiment, the display screen is carried by the carrier table 400, and the position of the carrier table 400 in the X-axis direction and the Y-axis direction is adjusted by the displacement driving mechanism to align it with the processing position of the laser, and the height of the detection camera 800 is adjusted by the lifting mechanism 500 to detect the situation of the display screen in real time, so as to make a judgment on whether repair is needed and the repair position.

[0042] Applying the above display-based laser repair device has at least the following beneficial effects: The detection camera 800 performs real-time detection on the display screen and determines whether highlight repair is required. At the same time, the multi-axial movement of the carrier table 400 and the laser is realized through the displacement driving mechanism and the lifting mechanism 500 to adjust the processing position and height of the display screen. Moreover, the vibration isolation component between the processing table 200 and the base 100 is used to isolate and reduce the influence of external vibration on the processing table 200, meeting the requirements of long-term stable processing. The whole process is automatically completed without frequent startup and shutdown operations, improving the detection efficiency and production efficiency.

[0043] According to some embodiments of the present invention, referring to Figure 1 , the vibration damping component 300 includes three first shock absorbers 310 and several second shock absorbers 320. The three first shock absorbers 310 and several second shock absorbers 320 are arranged in an array along the X-axis and Y-axis on the base 100. In this embodiment, there is one second shock absorber 320, and the three first shock absorbers 310 and one second shock absorber 320 are respectively arranged at the four diagonal corners of the upper edge of the base 100, so that the shock absorption effect received by the processing table 200 is evenly distributed, minimizing the influence of external vibration on the processing table 200.

[0044] In the above embodiment, a leveling valve 311 is provided on the first shock absorber 310. The three first shock absorbers 310 are distributed at the three diagonal corners of the bottom end surface of the processing table 200. The installation height of the first shock absorber 310 can be leveled through the leveling valve 311 to ensure that the processing table 200 remains stable during the processing process, meeting the requirements of long-term stable processing.

[0045] According to some embodiments of the present invention, the processing table 200 includes: a platform 210, which is arranged on the base 100, and a displacement driving mechanism is arranged on the platform 210; two columns 220, which are respectively arranged on both sides of the upper end surface of the platform 210; a cross beam 230, whose two sides are respectively connected to the upper end surfaces of the two columns 220, and a lifting mechanism 500 is arranged on the cross beam 230. The platform 210, the columns 220, and the cross beam 230 are all made of marble. Through the marble processing table 200 with a low center of gravity and combined with the above vibration isolation component 300, the whole processing process is made more stable, further meeting the requirements of long-term stable processing of products.

[0046] According to some embodiments of the present utility model, the displacement driving mechanism includes: a Y-axis displacement assembly 600, which includes a first mounting plate 610, a first motor 620, a first linear guide rail 630, and a Y-axis carrier plate 640. The first mounting plate 610 is provided on the processing table 200. The first motor 620 and the first linear guide rail 630 are both provided on the first mounting plate 610. The Y-axis carrier plate 640 is movably connected to the first linear guide rail 630. The first linear guide rail 630 is arranged along the Y-axis direction. The first motor 620 is used to drive the Y-axis carrier plate 640 to displace along the Y-axis; an X-axis displacement assembly 700: which includes a second mounting plate 710, a second motor 720, a second linear guide rail 730, and an X-axis carrier plate 740. The second mounting plate 710 is provided on the Y-axis carrier plate 640. The second motor 720 and the second linear guide rail 730 are both provided on the second mounting plate 710. The X-axis carrier plate 740 is movably connected to the second linear guide rail 730. The second linear guide rail 730 is arranged along the X-axis direction. The second motor 720 is used to drive the X-axis carrier plate 740 to displace along the X-axis direction. The loading platform 400 is provided on the X-axis carrier plate 740. In this embodiment, both the first motor 620 and the second motor 720 are linear motors. The Y-axis carrier plate 640 and the X-axis carrier plate 740 are both connected to the mover of the linear motor. The mover of the linear motor directly drives the Y-axis carrier plate 640 to displace along the first linear guide rail 630, that is, to displace in the Y-axis direction, and drives the X-axis carrier plate 740 to displace along the second linear guide rail 730, that is, to displace in the X-axis direction, ensuring the stability of processing. At the same time, bellows covers are provided on both the first mounting plate 610 and the second mounting plate 710, which are used to protect the components inside the Y-axis displacement assembly 600 and the X-axis displacement assembly 700 and play a role in dust prevention.

[0047] According to some embodiments of the present utility model, limit blocks 650 are provided on both the first mounting plate 610 and the second mounting plate 710. The limit blocks 650 are used to limit the working stroke of the Y-axis carrier plate 640 in the Y-axis direction and limit the working stroke of the X-axis carrier plate 740 in the X-axis direction. At the same time, anti-collision urethane rubbers are provided on the limit blocks 650, which are used to play a buffering role when the Y-axis carrier plate 640 and the X-axis carrier plate 740 collide and prevent damage.

[0048] According to some embodiments of the present utility model, the lifting mechanism 500 includes: a bottom plate 510, which is provided on the processing table 200; a stepping motor 520, which is provided on the bottom plate 510; a ball screw 530, which is connected to the output end of the stepping motor 520; a Z-axis carrier plate 540, which is movably connected to the ball screw 530. A motor mounting seat and a screw rod fixing seat are also provided on the bottom plate 510. The axial direction of the screw rod is fixed through the screw rod fixing seat to ensure the concentricity of the radial movement of the screw rod. At the same time, a third linear guide rail is also provided. The Z-axis carrier plate 540 supports the load by connecting the ball screw 530 and the third linear guide rail, ensuring the stability of processing.

[0049] According to some embodiments of the present utility model, the lifting mechanism 500 further includes a photoelectric sensor 550, which is used to detect the displacement stroke of the Z-axis carrier plate 540 and also used to control the displacement stroke to ensure the machining accuracy.

[0050] According to some embodiments of the present utility model, a sealed light box 900 is further included. The sealed light box 900 is arranged on the machining table 200 and is used to block the laser scattering generated by the laser.

[0051] The above are only the preferred embodiments of the present utility model. The present utility model is not limited to the above embodiments. As long as it achieves the technical effects of the present utility model by the same means, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure. They should all belong to the protection scope of the present utility model. Within the protection scope of the present utility model, various different modifications and changes can be made to its technical solutions and / or implementation manners.

Claims

1. A laser repair device for a display screen, characterized in that: include: Base (100); A processing table (200) is arranged on the base (100), and a vibration reduction assembly (300) is arranged between the base (100) and the processing table (200); A displacement driving mechanism, arranged on the processing table (200); A stage (400) is provided on the displacement drive mechanism, and the displacement drive mechanism is used to drive the stage (400) to move in the X-axis and Y-axis directions; A lifting mechanism (500) is provided on the processing table (200); A detection camera (800) is arranged on the lifting mechanism (500), and the lifting mechanism (500) is used to drive the detection camera (800) to move along the Z-axis direction; A laser is arranged above the processing table (200), and is used to provide laser light.

2. The laser repair device for a display screen according to claim 1, characterized in that: The vibration damping assembly (300) comprises three first vibration dampers (310) and a plurality of second vibration dampers (320), and the three first vibration dampers (310) and the plurality of second vibration dampers (320) are arranged in an array along the X-axis and the Y-axis on the base (100).

3. The laser repair device for a display screen according to claim 2, characterized in that: A leveling valve (311) is provided on the first shock absorber (310), and three of the first shock absorbers (310) are distributed at three diagonal positions on the bottom end surface of the processing table (200).

4. The laser repair device for a display screen according to claim 1, characterized in that: The processing station (200) comprises: A platform (210) is disposed on the base (100), and the displacement driving mechanism is disposed on the platform (210); Two upright columns (220) are respectively arranged on both sides of the upper end surface of the platform (210); The crossbeam (230) has two sides respectively connected to the upper end surfaces of the two upright posts (220), and the lifting mechanism (500) is arranged on the crossbeam (230).

5. The laser repair device for a display screen according to claim 4, characterized in that: The platform (210), the columns (220) and the crossbeam (230) are all made of marble.

6. The laser repair device for a display screen according to claim 1, characterized in that: The displacement driving mechanism comprises: A Y-axis displacement assembly (600) comprises a first mounting plate (610), a first motor (620), a first linear guide rail (630) and a Y-axis carrier plate (640), wherein the first mounting plate (610) is arranged on the processing table (200), the first motor (620) and the first linear guide rail (630) are both arranged on the first mounting plate (610), the Y-axis carrier plate (640) is movably connected to the first linear guide rail (630), the first linear guide rail (630) is arranged along the Y-axis direction, and the first motor (620) is used to drive the Y-axis carrier plate (640) to move along the Y-axis; The X-axis displacement assembly (700) comprises a second mounting plate (710), a second motor (720), a second linear guide rail (730) and an X-axis carrier plate (740), wherein the second mounting plate (710) is arranged on the Y-axis carrier plate (640), the second motor (720) and the second linear guide rail (730) are both arranged on the second mounting plate (710), the X-axis carrier plate (740) is movably connected to the second linear guide rail (730), the second linear guide rail (730) is arranged along the X-axis direction, the second motor (720) is used to drive the X-axis carrier plate (740) to displace along the X-axis direction, and the worktable (400) is arranged on the X-axis carrier plate (740).

7. The laser repair device for a display screen according to claim 6, characterized in that: The first mounting plate (610) and the second mounting plate (710) are both provided with a limiting block (650).

8. The laser repair device for a display screen according to claim 1, characterized in that: The lifting mechanism (500) comprises: A bottom plate (510) is disposed on the processing table (200); A stepping motor (520) is disposed on the bottom plate (510); A ball screw (530) connected to an output end of the stepping motor (520); The Z-axis carrier plate (540) is movably connected to the ball screw (530).

9. The laser repair device for a display screen according to claim 8, characterized in that: The lifting mechanism (500) further comprises a photoelectric sensor (550), wherein the photoelectric sensor (550) is used to detect the displacement stroke of the Z-axis carrier plate (540).

10. The laser repair device for a display screen according to claim 1, characterized in that: It also includes a sealed light box (900), which is arranged on the processing table (200) and is used to block the scattering of laser light generated by the laser.

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