A display screen lamp plate replacement maintenance method

CN117789613BActive Publication Date: 2026-10-09LEDMAN OPTOELECTRONIC HZ CO LTD
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Patent Information

Application Number
CN202311790318.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-22
Publication Date
2026-10-09
Estimated Expiration
2043-12-22

AI Technical Summary

Technical Problem

[0003]当显示模块结构中的个别灯板损坏需要更换时,现有技术会先使用热风枪从框架侧对胶体位置进行加热,然后用手从显示模块结构的背面直接将待更换灯板抵出,使其与框架分离,但是胶体粘性大,工作人员需要很用力才能够将灯板与框架分离,这会导致灯板与框架分离的瞬间,灯板的初始速度比较大,容易刮伤工作人员的手部,造成安全事故,而且,对于具有多排多列灯板的显示模块结构而言,取出位于中央区域的灯板也十分不方便

Benefits of technology

[0023] The beneficial effects of this invention are as follows: The implementation process of this display screen lamp panel replacement and repair method is simple and convenient for maintenance personnel. By using the cooperation of the downward push rod and auxiliary fixture, a part of the lamp panel to be replaced can be easily separated from the frame without the maintenance personnel's hands touching the lamp panel to be replaced. This avoids the risk of maintenance personnel being scratched by the lamp panel to be replaced during the separation process, which helps to improve operational safety. Moreover, the downward pressure of the downward push rod can be adjusted by simple settings, thereby avoiding damage to the lamp panel to be replaced. This allows some of the lamp panels to be replaced to be reused after subsequent repairs, which helps to reduce costs and reduce resource waste.

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Abstract

The application discloses a display screen lamp plate replacement and maintenance method, which comprises the following steps: obtaining a display module structure to be maintained and a replacement lamp plate, and determining the position of the lamp plate to be replaced on a frame; using a hot air gun to blow hot air on the edge of the lamp plate to be replaced to soften the colloid connecting the lamp plate to be replaced and the frame; placing the display module structure to be maintained on an auxiliary jig, so that the lamp plate to be replaced corresponds to the avoiding groove on the auxiliary jig; using a downward push rod to press the lamp plate to be replaced, so that part of the area of the lamp plate to be replaced is separated from the frame; taking the display module structure to be maintained off the auxiliary jig, and then taking the lamp plate to be replaced off the frame; scraping the residual colloid exposed on the frame due to the taking off of the lamp plate to be replaced; pasting easy-to-pull colloid on the frame and / or the replacement lamp plate; fixing the replacement lamp plate and the frame by using the easy-to-pull colloid, and completing the maintenance of the display module structure. The display screen lamp plate replacement and maintenance method is simple to implement, is convenient for maintenance personnel to operate, and is high in operation safety.
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Description

Technical Field

[0001] This invention relates to the field of LED display screen repair technology, and in particular to a method for replacing and repairing LED display screen lamp panels. Background Technology

[0002] Figure 1 and Figure 2 A display module structure is shown, which includes a frame 10 and a plurality of lamp panels 20 glued to the frame 10. The plurality of lamp panels 20 are arranged in an array. Specifically, the adhesive is arranged in a circle along the edge of the back side of the lamp panel 20. Since the lamp panels 20 in this display module structure are rectangular, the back side of each lamp panel 20 has an adhesive in the shape of a rectangular frame.

[0003] When individual LED panels in the display module structure are damaged and need to be replaced, the existing technology first uses a hot air gun to heat the adhesive area from the frame side, and then uses the hand to push the LED panel to be replaced directly out from the back of the display module structure to separate it from the frame. However, the adhesive is very sticky, and the worker needs to use a lot of force to separate the LED panel from the frame. This results in a relatively high initial speed of the LED panel when it separates from the frame, which can easily scratch the worker's hand and cause a safety accident. Moreover, for display module structures with multiple rows and columns of LED panels, it is also very inconvenient to remove the LED panel located in the central area. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method for replacing and repairing display screen lamp panels that is convenient for maintenance personnel to operate and has high operational safety.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a method for replacing and repairing a display screen lamp panel, comprising the following steps:

[0006] Obtain the structure of the display module to be maintained and the replacement lamp board, and determine the position of the lamp board to be replaced on the frame;

[0007] Use a hot air gun to blow hot air along the edge of the lamp panel to be replaced to soften the adhesive connecting the lamp panel to the frame.

[0008] The display module structure to be maintained is placed on the auxiliary fixture, so that the lamp board of the display module structure to be maintained is in contact with the top surface of the auxiliary fixture. The top surface of the auxiliary fixture is provided with a clearance groove, the width of which is greater than the diagonal length of the lamp board. When the display module structure to be maintained is placed on the auxiliary fixture, the lamp board to be replaced is aligned with the clearance groove.

[0009] Use the push rod to press down on the lamp panel to be replaced, so that a part of the lamp panel to be replaced is removed from the frame;

[0010] After removing the display module structure to be maintained from the auxiliary fixture, remove the lamp board to be replaced from the frame;

[0011] Scrape off any residual adhesive that was exposed on the frame after removing the lamp panel to be replaced;

[0012] Apply easy-open adhesive tape to the frame and / or replacement light panel;

[0013] Use easy-pull adhesive tape to fix the replacement light panel to the frame, thus completing the maintenance of the display module structure.

[0014] Furthermore, when using a hot air gun to blow hot air onto the edge of the lamp panel to be replaced, the hot air gun blows hot air onto the edge of the lamp panel to be replaced from the frame side of the display module structure to be maintained.

[0015] Furthermore, when using a hot air gun to blow hot air along the edge of the lamp panel to be replaced, use the hot air gun to heat it evenly in a circular motion for 1-2 minutes along the edge of the lamp panel to be replaced, and keep the distance between the hot air gun and the display module structure to be maintained at 1-2 cm.

[0016] Furthermore, before using a hot air gun to blow hot air along the edges of the lamp panel to be replaced, the process includes a step of erecting the display module structure to be maintained.

[0017] Furthermore, the top surface of the auxiliary fixture is provided with a buffer pad, so that when the display module structure to be maintained is placed on the auxiliary fixture, the lamp plate of the display module structure to be maintained contacts the buffer pad surface.

[0018] Furthermore, the buffer pad has multiple placement slots for the display module structure to be maintained, with at least two placement slots having different length directions.

[0019] Furthermore, before placing the display module structure to be maintained on the auxiliary fixture, the process includes a step of determining whether the lamp board to be replaced is located at the corner of the frame. If so, when placing the display module structure to be maintained on the auxiliary fixture, the length direction of the lamp board to be replaced is not parallel to the width direction of the clearance groove.

[0020] Furthermore, when the push rod is used to press against the lamp panel to be replaced, the contact position between the push rod and the lamp panel to be replaced is deviated from the center of the lamp panel to be replaced and is close to a corner of the lamp panel to be replaced.

[0021] Furthermore, during the process of removing the display module structure to be maintained from the auxiliary fixture, hold the area where the lamp board to be replaced has not yet separated from the frame to prevent the lamp board to be replaced from accidentally falling off the frame during the transfer of the display module structure to be maintained.

[0022] Furthermore, when using adhesive tape to fix the replacement light panel to the frame, there is only one layer of adhesive tape between the replacement light panel and the frame.

[0023] The beneficial effects of this invention are as follows: The implementation process of this display screen lamp panel replacement and repair method is simple and convenient for maintenance personnel. By using the cooperation of the downward push rod and auxiliary fixture, a part of the lamp panel to be replaced can be easily separated from the frame without the maintenance personnel's hands touching the lamp panel to be replaced. This avoids the risk of maintenance personnel being scratched by the lamp panel to be replaced during the separation process, which helps to improve operational safety. Moreover, the downward pressure of the downward push rod can be adjusted by simple settings, thereby avoiding damage to the lamp panel to be replaced. This allows some of the lamp panels to be replaced to be reused after subsequent repairs, which helps to reduce costs and reduce resource waste. Attached Figure Description

[0024] Figure 1 This is a structural diagram of a display module in the prior art;

[0025] Figure 2 This is a schematic diagram of the display module structure from another perspective in the prior art.

[0026] Figure 3 This is a flowchart of the display screen lamp board replacement and repair method according to Embodiment 1 of the present invention;

[0027] Figure 4 This is a schematic diagram of the auxiliary fixture according to Embodiment 1 of the present invention;

[0028] Figure 5 This is a schematic diagram illustrating the cooperation between the auxiliary fixture and the display module structure in Embodiment 1 of the present invention. Figure 1 ;

[0029] Figure 6 This is a schematic diagram illustrating the cooperation between the auxiliary fixture and the display module structure in Embodiment 1 of the present invention. Figure 2 .

[0030] Label Explanation:

[0031] 1. Auxiliary fixture; 11. Clearance groove;

[0032] 2. Buffer pad; 21. Placement slot;

[0033] 10. Frame; 20. Light panel. Detailed Implementation

[0034] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0035] Please refer to Figures 3 to 6 A method for replacing and repairing a display screen backlight panel includes the following steps:

[0036] Obtain the structure of the display module to be maintained and the replacement lamp board, and determine the position of the lamp board to be replaced on the frame 10;

[0037] Use a hot air gun to blow hot air along the edge of the lamp panel to be replaced to soften the adhesive connecting the lamp panel to be replaced and the frame 10.

[0038] The display module structure to be maintained is placed on the auxiliary fixture 1, so that the lamp plate 20 of the display module structure to be maintained is in contact with the top surface of the auxiliary fixture 1. The top surface of the auxiliary fixture 1 is provided with a clearance groove 11. The width of the clearance groove 11 is greater than the diagonal length of the lamp plate 20. When the display module structure to be maintained is placed on the auxiliary fixture 1, the lamp plate to be replaced is aligned with the clearance groove 11.

[0039] Use the downward push rod to press against the lamp panel to be replaced, so that a part of the lamp panel to be replaced is detached from the frame 10;

[0040] After removing the display module structure to be maintained from the auxiliary fixture 1, remove the lamp board to be replaced from the frame 10;

[0041] Scrape off any residual adhesive on frame 10 that was exposed when the lamp panel to be replaced was removed;

[0042] Apply easy-open adhesive to frame 10 and / or the replacement light panel;

[0043] Use easy-pull adhesive to fix the replacement lamp board to the frame 10, thus completing the maintenance of the display module structure.

[0044] As can be seen from the above description, the beneficial effects of the present invention are as follows: The implementation process of this display screen lamp panel replacement and repair method is simple and convenient for maintenance personnel to operate. By using the cooperation of the downward push rod and the auxiliary fixture 1, a part of the lamp panel to be replaced can be easily separated from the frame 10 without the maintenance personnel's hands touching the lamp panel to be replaced. This avoids the risk of the maintenance personnel being scratched by the lamp panel to be replaced during the separation of the lamp panel to be replaced from the frame 10, which helps to improve operational safety. Moreover, the downward pressure of the downward push rod can be adjusted by simple settings, thereby avoiding damage to the lamp panel to be replaced. This allows some of the lamp panels to be replaced to continue to be used after subsequent repairs, which helps to reduce costs and reduce resource waste.

[0045] Furthermore, when using a hot air gun to blow hot air onto the edge of the lamp panel to be replaced, the hot air gun blows hot air onto the edge of the lamp panel to be replaced from the frame 10 side of the display module structure to be maintained.

[0046] As described above, the heat from the hot air gun is transferred to the colloid from the frame 10 side, which can prevent the lamp panel to be replaced and its adjacent lamp panels 20 from being damaged by heat.

[0047] Furthermore, when using a hot air gun to blow hot air along the edge of the lamp panel to be replaced, use the hot air gun to heat it evenly in a circular motion for 1-2 minutes along the edge of the lamp panel to be replaced, and keep the distance between the hot air gun and the display module structure to be maintained at 1-2 cm.

[0048] As described above, the hot air gun heats the colloid for a sufficient time and at an appropriate distance, ensuring the colloid softens and making it easier for maintenance personnel to remove the lamp panel to be replaced from the frame 10.

[0049] Furthermore, before using a hot air gun to blow hot air along the edges of the lamp panel to be replaced, the process includes a step of erecting the display module structure to be maintained.

[0050] As described above, using a hot air gun to blow hot air onto the lamp board to be replaced in the upright display module structure can prevent the lamp board to be replaced from becoming too tightly attached to the frame 10 due to its own weight or the weight of the frame 10, thus hindering the subsequent separation of the lamp board to be replaced from the frame 10.

[0051] Furthermore, the top surface of the auxiliary fixture 1 is provided with a buffer pad 2. When the display module structure to be maintained is placed on the auxiliary fixture 1, the lamp plate 20 of the display module structure to be maintained contacts the surface of the buffer pad 2.

[0052] As can be seen from the above description, the presence of the buffer pad 2 can prevent the auxiliary fixture 1 from scratching the lamp panel 20.

[0053] Furthermore, the buffer pad 2 has multiple placement slots 21 for the display module structure to be maintained, and at least two placement slots 21 have different length directions.

[0054] As described above, maintenance personnel can select different placement slots 21 according to the position of the lamp board to be replaced on the lamp board 20. This allows maintenance personnel to place the display module structure to be maintained onto the auxiliary fixture 1 without adjusting the relative position between the display module structure to be maintained and the auxiliary fixture 1, so that the lamp board to be replaced corresponds to the clearance slot 11. This facilitates the operation of maintenance personnel and helps to improve maintenance efficiency.

[0055] Furthermore, before placing the display module structure to be maintained on the auxiliary fixture 1, the procedure includes determining whether the lamp board to be replaced is located at the corner of the frame 10. If so, when placing the display module structure to be maintained on the auxiliary fixture 1, the length direction of the lamp board to be replaced is not parallel to the width direction of the clearance groove 11.

[0056] As can be seen from the above description, depending on the position of the lamp board to be replaced on the frame 10, when placing the display module structure to be maintained on the auxiliary fixture 1, it is necessary to adjust the angle of the display module structure to be maintained relative to the auxiliary fixture 1 so that the lamp board to be replaced can correspond to the clearance groove 11.

[0057] Furthermore, when the push rod is used to press against the lamp panel to be replaced, the contact position between the push rod and the lamp panel to be replaced is deviated from the center of the lamp panel to be replaced and is close to a corner of the lamp panel to be replaced.

[0058] As described above, the pressure point of the lamp panel to be replaced is located near its corner, which makes it easier to separate a local area of ​​the lamp panel to be replaced from the frame 10, and the lamp panel to be replaced will not detach from the frame 10 as a whole due to pressure, which makes it easier to remove the display module structure to be maintained from the auxiliary fixture 1.

[0059] Furthermore, during the process of removing the display module structure to be maintained from the auxiliary fixture 1, the area where the lamp board to be replaced has not yet separated from the frame 10 is held to prevent the lamp board to be replaced from accidentally falling off the frame 10 during the transfer of the display module structure to be maintained.

[0060] Furthermore, when using adhesive tape to fix the replacement light panel to the frame 10, there is only one layer of adhesive tape between the replacement light panel and the frame 10.

[0061] As described above, the easy-pull adhesive has no overlapping areas, which allows the replacement light panel and frame 10 to be firmly fixed.

[0062] Example 1

[0063] Embodiment 1 of the present invention is: a method for replacing and repairing a display screen lamp board, applicable to the repair of display module structures, such as... Figure 1 and Figure 2 As shown, the display module structure includes a frame 10 and multiple lamp panels 20 glued to one side of the frame 10. The multiple lamp panels 20 are arranged in an array, and there is no gap or a micro gap between two adjacent lamp panels 20.

[0064] like Figure 3 As shown, the replacement and repair method for the display screen backlight panel includes the following steps:

[0065] S1. Obtain the structure of the display module to be maintained and the replacement lamp board, and determine the position of the lamp board to be replaced on the frame 10. When obtaining the replacement lamp board, first determine the model of the lamp board to be replaced, and then obtain a replacement lamp board with the same model as the lamp board to be replaced.

[0066] S2. Use a hot air gun to blow hot air along the edge of the lamp panel to be replaced to soften the adhesive connecting the lamp panel to be replaced and the frame 10. In this embodiment, the adhesive is hot melt adhesive. Preferably, the hot air gun blows hot air along the edge of the lamp panel to be replaced from the frame 10 side of the display module structure to be maintained. The specific operation process is as follows: use the hot air gun to heat the edge of the lamp panel to be replaced at a uniform speed for 1-2 minutes, and keep the distance between the hot air gun and the display module structure to be maintained at 1-2 cm.

[0067] Optionally, before using a hot air gun to blow hot air along the edge of the lamp panel to be replaced, step S20 is included: erecting the display module structure to be maintained. It should be noted that erecting the display module structure to be maintained does not necessarily mean that it must be perpendicular to the workbench surface (i.e., the horizontal plane). Slightly offsetting the display surface of the display module structure from the vertical plane (the vertical plane being perpendicular to the horizontal plane) is also acceptable. For example, the display surface of the display module structure can form an angle of 0°-10° with the vertical plane. In this case, preferably, in any vertical plane, the frame 10 is located above the lamp panel to be replaced. Thus, after the colloid softens due to heat, the lamp panel to be replaced can undergo a slight pre-separation from the frame 10 under its own weight, making it easier to separate the lamp panel from the frame 10 in subsequent steps.

[0068] S3. Place the display module structure to be maintained on the auxiliary fixture 1, so that the lamp plate 20 of the display module structure to be maintained is in contact with the top surface of the auxiliary fixture 1. The top surface of the auxiliary fixture 1 is provided with a relief groove 11 (e.g., Figure 4 As shown, the width of the clearance groove 11 is greater than the diagonal length of the lamp panel 20. When the display module structure to be maintained is placed on the auxiliary fixture 1, the lamp panel to be replaced is aligned with the clearance groove 11. It should be noted that "the lamp panel to be replaced is aligned with the clearance groove 11" means that when the display module structure to be maintained is placed on the auxiliary fixture 1, and viewed from above, the projection area of ​​the lamp panel to be replaced is completely located in the clearance groove 11, and there is no intersection between the projection area of ​​the lamp panel to be replaced and the wall of the clearance groove 11. The specific operation process for aligning the lamp panel to be replaced with the clearance groove 11 is as follows: move the display module structure to be maintained placed on the auxiliary fixture 1 to ensure that when viewed from above, there is no intersection between the lamp panel to be replaced and the wall of the clearance groove 11. In addition, when the display module structure to be maintained is placed on the auxiliary fixture 1, the areas of the auxiliary fixture 1 on both sides of the clearance groove 11 provide support for the display module structure to be maintained.

[0069] To prevent damage to the lamp plate 20 of the display module structure to be maintained located on the placement fixture, preferably, the top surface of the auxiliary fixture 1 is provided with a buffer pad 2. When the display module structure to be maintained is placed on the auxiliary fixture 1, the lamp plate 20 of the display module structure to be maintained is in contact with the surface of the buffer pad 2. That is to say, when the display module structure to be maintained is placed on the auxiliary fixture 1, the display module structure to be maintained does not directly contact the rigid part of the auxiliary fixture 1.

[0070] In specific implementation, optionally, step S30 is included before step S3: determining whether the lamp board to be replaced is located at the corner of the frame 10. If so, when placing the display module structure to be maintained on the auxiliary fixture 1, the length direction of the lamp board to be replaced is not parallel to the width direction of the clearance groove 11, so as to ensure that the areas of the auxiliary fixture 1 on both sides of the clearance groove 11 can provide support for the display module structure to be maintained.

[0071] To further facilitate maintenance personnel operation, preferably, the buffer pad 2 has multiple placement slots 21 for the display module structure to be maintained, with at least two placement slots 21 having different length directions. When the maintenance personnel place the display module structure to be maintained in different placement slots 21, the lamp board to be replaced on the display module structure corresponds to the clearance slot 11 on the auxiliary fixture 1. For example, in this embodiment, the display module structure to be maintained has six lamp boards 20. In this case, the number of placement slots 21 is two. When the display module structure to be maintained is placed in one of the placement slots 21, the lamp board 20 located at the corner of the frame 10 corresponds to the clearance slot 11. That is, when the lamp board to be replaced on the display module structure is located at the corner of the display module structure, the maintenance personnel can place the display module structure to be maintained in that placement slot 21 (e.g., ...). Figure 5 (As shown); When the display module structure to be maintained is placed in another of the placement slots 21, the lamp plate 20 located in the middle of the frame 10 corresponds to the clearance slot 11. That is, when the lamp plate to be replaced of the display module structure to be maintained is in the middle position of the display module structure to be maintained, the maintenance personnel can place the display module structure to be maintained in the other placement slot 21 (as shown). Figure 6 (As shown).

[0072] S4. Use the downward push rod to press against the lamp panel to be replaced, causing a portion of the lamp panel to detach from the frame 10. The downward push rod can be a manual or mechanical pressing mechanism (e.g., an electric push rod, hydraulic rod, cylinder, etc.). To prevent the downward push rod from damaging the lamp panel, it is preferable that the bottom end of the downward push rod is provided with a buffer head, which can be made of rubber or similar material. It is easy to understand that the contact position between the downward push rod and the lamp panel to be replaced should avoid easily damaged components such as capacitors on the lamp panel.

[0073] Specifically, when using the push rod to press against the lamp panel to be replaced, the contact position between the push rod and the lamp panel is offset from the center of the lamp panel and closer to a corner of the lamp panel. This allows the separation process between the lamp panel and the frame 10 to begin from the corner of the lamp panel, making it easier to separate them. This avoids the need to apply excessive pressure when pressing against the lamp panel, which could lead to overpressure damage and render the lamp panel unusable after repair.

[0074] S5. After removing the display module structure to be maintained from the auxiliary fixture 1, remove the lamp board to be replaced from the frame 10. During the process of removing the display module structure to be maintained from the auxiliary fixture 1, the maintenance personnel should hold the area where the lamp board to be replaced has not yet separated from the frame 10 to prevent the lamp board to be replaced from accidentally falling off the frame 10 during the transfer of the display module structure.

[0075] S6. Use a scraper or other tool to scrape off any residual adhesive on the frame 10 that was exposed when the lamp panel to be replaced was removed;

[0076] S7. Apply easy-open adhesive to frame 10 and / or the replacement light panel;

[0077] S8. Use adhesive tape to fix the replacement lamp board to the frame 10 to complete the maintenance of the display module structure; preferably, after the replacement lamp board is fixed to the frame 10, the adhesive tape forms a ring shape along the edge of the back of the replacement lamp board.

[0078] When using adhesive tape to fix the replacement light panel to the frame 10, there is only one layer of adhesive tape between the replacement light panel and the frame 10. That is to say, during the process of applying adhesive tape to the frame 10 and / or the replacement light panel, the bonding position of the adhesive tape should be determined in advance. To facilitate the operation of maintenance personnel, when implementing step S7, it is preferable to apply adhesive tape only to one of the frame 10 and the replacement light panel.

[0079] The display screen lamp panel replacement and repair method provided by this invention is simple to implement and convenient for maintenance personnel to operate. By using the cooperation of the downward push rod and auxiliary fixture, a part of the lamp panel to be replaced can be easily separated from the frame without the maintenance personnel's hands touching the lamp panel to be replaced. This avoids the risk of maintenance personnel being scratched by the lamp panel to be replaced during the separation process, which helps to improve operational safety. Moreover, the downward pressure of the downward push rod can be adjusted by simple settings, thereby avoiding damage to the lamp panel to be replaced. This allows some of the lamp panels to be replaced to be reused after subsequent repairs, which helps to reduce costs and reduce resource waste.

[0080] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for replacing and repairing a display screen lamp panel, characterized in that, Includes the following steps: Obtain the structure of the display module to be maintained and the replacement lamp board, and determine the position of the lamp board to be replaced on the frame; Before using a hot air gun to blow hot air along the edge of the lamp panel to be replaced, the display module structure to be maintained is erected, and the display surface of the display module structure to be maintained is at an angle of 0°-10° with the vertical plane, and the frame is located above the lamp panel to be replaced. Use a hot air gun to blow hot air along the edge of the lamp panel to be replaced to soften the adhesive connecting the lamp panel to the frame. Before placing the display module structure to be maintained on the auxiliary fixture, determine whether the lamp board to be replaced is located at the corner of the frame. If so, when placing the display module structure to be maintained on the auxiliary fixture, ensure that the length direction of the lamp board to be replaced is not parallel to the width direction of the clearance groove. The display module structure to be maintained is placed on the auxiliary fixture, so that the lamp board of the display module structure to be maintained is in contact with the top surface of the auxiliary fixture. The top surface of the auxiliary fixture is provided with a clearance groove and a buffer pad. The buffer pad has multiple placement grooves for the display module structure to be maintained, at least two of which have different length directions. The width of the clearance groove is greater than the diagonal length of the lamp board. When the display module structure to be maintained is placed on the auxiliary fixture, the lamp board to be replaced is aligned with the clearance groove. The push rod is used to press the lamp panel to be replaced. The contact position between the push rod and the lamp panel to be replaced is off-center from the center of the lamp panel and close to a corner of the lamp panel to be replaced, so that part of the lamp panel to be replaced is removed from the frame. After removing the display module structure to be maintained from the auxiliary fixture, remove the lamp board to be replaced from the frame; Scrape off any residual adhesive that was exposed on the frame after removing the lamp panel to be replaced; Apply easy-open adhesive tape to the frame and / or replacement light panel; Use easy-pull adhesive tape to fix the replacement light panel to the frame, thus completing the maintenance of the display module structure.

2. The method for replacing and repairing the display screen lamp panel according to claim 1, characterized in that, When using a hot air gun to blow hot air along the edge of the light panel to be replaced, the hot air gun should blow hot air from the frame side of the display module structure to be maintained along the edge of the light panel to be replaced.

3. The method for replacing and repairing the display screen lamp panel according to claim 1, characterized in that, When using a hot air gun to heat the edge of the lamp panel to be replaced, use the hot air gun to heat the edge of the lamp panel at a uniform speed in a circular motion. For 2 minutes, the distance between the hot air gun and the display module structure to be maintained was kept at 1 meter. 2 centimeters.

4. The method for replacing and repairing the display screen lamp panel according to claim 1, characterized in that, When the display module structure to be maintained is placed on the auxiliary fixture, the lamp plate of the display module structure to be maintained contacts the buffer pad surface.

5. The method for replacing and repairing the display screen lamp panel according to claim 1, characterized in that, When removing the display module structure to be maintained from the auxiliary fixture, hold the area where the lamp board to be replaced is still attached to the frame to prevent the lamp board from accidentally falling off the frame during the transfer of the display module structure.

6. The method for replacing and repairing the display screen lamp panel according to claim 1, characterized in that, When using adhesive tape to fix the replacement light panel to the frame, there is only one layer of adhesive tape between the replacement light panel and the frame.

Citation Information

Patent Citations

  • Method for repairing damaged light of LED display screen

    CN104537958A

  • Heating clamp for dismounting display screen

    CN216399349U

  • Auxiliary jig for disassembling display screen lamp panel

    CN221640121U