Limiting piece

Abstract

The utility model discloses a limiting piece, and relates to the field of display auxiliary tools, the limiting piece is provided with a first connecting part, and the first connecting part is used for being detachably connected with a back plate; when the first connecting part is connected with the back plate, the limiting piece is located on the side, back on to the COF line, of the back plate. When the COF packaging technology is adopted, the limiting piece is adopted for auxiliary positioning when the turnover source driving plate is fixed, and the limiting piece provides a clear limiting mark for a worker, so that the worker conducts turnover fixing according to the limiting mark, and turnover beyond the range is avoided. The motion of the fixed source driving plate is standardized, the working efficiency is effectively improved, meanwhile, the phenomenon of poor screen damage and loss caused by uneven working stress is avoided, and the production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of display auxiliary tools, in particular to a limiting component. Background Art

[0002] A flat panel display module is a device used to display images and videos in modern display technology. It is usually composed of a liquid crystal panel, a backlight module, a T-CON (timing control board), a source board (source driver board), a COF package (chip on film, an advanced packaging technology), a plastic frame, etc. During the assembly process of the display, the source board needs to be fixed in place to ensure its stable connection with the display panel and other components. The COF line is a key part connecting the source board and the display panel, which transmits the display signal to the panel through a flexible substrate. When fixing the source board, the operator needs to handle the COF line carefully to avoid applying excessive force or bending it during the fixing process, so as to prevent the COF line from breaking or being damaged and ensure the normal display function of the display.

[0003] At present, in the production of flat panel display modules, the display OC (Open cell, an unpackaged LCD panel) is often difficult to assemble. The COF packaging technology is used to fix the Source board, and the staff needs to fold the Source board to achieve the fixing effect. Due to the improper assembly position of the Source board and the lack of precise alignment, the COF line is involved, causing the COF line to contact and scratch the plastic frame, resulting in damage to the OOF line (the driving line in the LCD) and wear of the IC (integrated circuit). The emergence of this situation reduces production efficiency and product quality. Utility Model Content

[0004] The main purpose of the utility model is to provide a limiter, which aims to solve the technical problem of how to assist in fixing the Source board and prevent the COF line from being pulled during the assembling process of the display OC while ensuring work efficiency.

[0005] To achieve the above object, the utility model provides a limiting member, which is used to limit the installation position of the source driving board on the back plate, one end of the back plate is connected to the COF line, and the limiting member has a first connecting portion, which is used to be detachably connected to the back plate;

[0006] When the first connection portion is connected to the back plate, the stopper is located at a side of the back plate facing away from the COF line.

[0007] In one embodiment, the back plate is formed with a second connection portion, and the first connection portion is plugged into the second connection portion.

[0008] In one embodiment, the first connection portion is a through hole, the second connection portion is a protrusion matched with the through hole, and the through hole is plugged into the protrusion.

[0009] In one embodiment, the limiting member includes a main body and a magnetic part, the magnetic part is bonded to the main body, and the first connecting part is provided on the main body and located on an upper portion of the magnetic part.

[0010] In one embodiment, the magnetic attraction portion includes a blind hole and a magnetic block provided in the main body portion, the magnetic block is adhered to one of the blind holes, and the magnetic block is used to be magnetically connected and fixed to the back plate.

[0011] In one embodiment, the limiting member is further provided with a slot engaged with the back panel ridge, the slot is located in the middle of the limiting member, and at least part of the inner wall of the slot is chamfered to form a locking structure that cooperates with the back panel ridge.

[0012] In one embodiment, the limiting member includes at least one limiting segment, each of the limiting segments is arranged facing one side of the source driving board and is arranged in the extension direction of the source driving board, and the limiting segment is used to limit the position of the source driving board.

[0013] In one embodiment, the limiting member further includes a connecting section, each of the limiting sections is bent to form a bent limiting section, the connecting section is straight, and both ends of the connecting section are respectively connected to a bent limiting section, and the bent limiting section is arranged at an angle to the connecting section.

[0014] In one embodiment, a limiting plane is formed on a side of each limiting segment facing the source driving board, and the limiting planes are flush with each other, and the limiting planes are used to abut against the source driving board.

[0015] In one embodiment, the limiting member includes: a first connecting portion, a magnetic portion and a card slot, the first connecting portion is arranged to cooperate with the convex bump of the back plate; the magnetic portion includes a blind hole and a magnetic block, the magnetic block is bonded to the blind hole, and the magnetic block is used to be magnetically fixed to the back plate; the card slot is used to be carded with the convex ridge of the back plate, and the card slot is arranged between the first connecting portion and the magnetic portion.

[0016] The technical solution of the utility model adopts the first connecting part of the limiting member to be detachably connected with the back plate. At this time, the limiting member and the back plate cooperate to play a role of rapid positioning. When the source driving plate is folded, the source driving plate can be fixed for the staff to effectively limit the position by referring to the position of the limiting member, so that the source driving plate will not involve the COF line, so that the action of fixing the source driving plate is standardized, which effectively improves the work efficiency, and at the same time eliminates the phenomenon of screen damage caused by uneven force during operation, saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 A schematic structural diagram of an embodiment of the present invention in which a limiting member is fixed on a back plate;

[0019] Figure 2 A schematic structural diagram of another embodiment of the present invention in which the limiting member is fixed on the back plate;

[0020] Figure 3 for Figure 1 A schematic diagram of the structure of the middle limiter;

[0021] Figure 4 for Figure 2 Schematic diagram of the structure of the middle limiter.

[0022] Description of Figure Numbers:

[0023] 1. Limiting member; 11. First connecting portion; 111. Through hole; 12. Blind hole; 13. Slot; 131. Chamfer; 14. Limiting section; 141. Bending limiting section; 142. Connecting section; 143. Limiting plane; 2. Back panel; 21. Second connecting portion; 22. Back panel ridge; 3. Source driving board; 4. COF line.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0028] The utility model provides a limiting component 1.

[0029] See also Figures 1 to 4 In one embodiment of the utility model, the limiter 1 is used to limit the installation position of the source driving board 3 on the back plate 2, and one end of the back plate 2 is connected to the COF line. In the embodiment of the utility model, the limiter 1 has a first connecting portion 11, and the first connecting portion 11 is used to be detachably connected to the back plate; when the first connecting portion 11 is connected to the back plate 2, the limiter 1 is located on the side of the back plate facing away from the COF line.

[0030] In this embodiment, the stopper 1 is mainly used in the production process of the flat panel display module to assist in fixing the source drive board 3 and provide a clear mark for folding and fixing the source drive board 3. Here, the first connection portion 11 can be connected to the back plate 2 not only by plug connection, snap connection, but also by magnetic connection. Furthermore, the stopper 1 can be a stopper plate, and the material can be aluminum alloy.

[0031] The technical solution of the utility model, when adopting the COF packaging technology, uses the limiter 1 to assist in positioning when fixing the source driver board 3 by folding it. The limiter 1 provides a clear limit mark for the staff, so that the staff can fold and fix it according to the limit mark to avoid folding beyond the range. After the source driver board 3 is assisted in fixing, since the limiter 1 is detachably connected to the back plate 2, the limiter 1 is disassembled and taken out, thereby avoiding the COF line 4 being involved, causing the COF line 4 to scratch the rubber frame and affect the production quality and production efficiency. The above operation standardizes the action of fixing the source driver board 3, effectively improves the work efficiency, and at the same time eliminates the phenomenon of screen damage caused by uneven force during operation, saving production costs.

[0032] In the embodiment of the present utility model, the back plate 2 is formed with a second connection portion 21, and the first connection portion 11 is plugged into the second connection portion 21. The second connection portion 21 is a structure that cooperates with the first connection portion 11.

[0033] Combination Figures 1 to 4 In this embodiment, one of the first connection portion 11 and the second connection portion 21 forms a connection protrusion, and the other of the first connection portion 11 and the second connection portion 21 forms a through slot; when the stopper 1 is fixed to the back plate, each connection protrusion is inserted into a through slot. Here, the shape and size of the connection protrusion and the through slot are adapted so that when the connection protrusion and the through slot are inserted, the stopper 1 can quickly locate the position on the back plate. The setting of the protrusion 211 and the through slot can facilitate assembly and disassembly, while improving high flexibility.

[0034] Furthermore, one of the first connection part 11 and the second connection part 21 forms two connection protrusions, and the other forms two through slots; when the stopper 1 is fixed on the back plate, each connection protrusion is inserted into a through slot. The sizes of the two connection protrusions are different, and the sizes of the corresponding two through slots are also different. This setting helps to prevent incorrect insertion, ensure that each connection protrusion is correctly connected to a through slot, and also avoid reverse insertion; through the matching of different sizes, the stress at the connection is more evenly distributed, reducing the phenomenon of local stress concentration.

[0035] In the embodiment of the present utility model, the first connection portion 11 is a through hole 111 , the second connection portion 21 is a protrusion 211 matched with the through hole 111 , and the through hole 111 is plugged into the protrusion 211 .

[0036] In this embodiment, when the through hole 111 is inserted into the protrusion 211, the edge of the protrusion 211 can provide a certain mechanical locking effect to prevent the connection part from loosening under the action of external force. This setting method is easy to operate, and the connection part between the through hole 111 and the protrusion 211 is not easy to loosen during normal use, which improves the stability of the overall structure. The specific matching of the through hole 111 and the protrusion 211 can prevent incorrect insertion, ensure that only the correct parts can be connected, and increase the safety of use.

[0037] In the embodiment of the present utility model, the limiting member 1 includes a main body and a magnetic part, the magnetic part is bonded to the main body, and the first connecting part 11 is provided on the main body and located on the upper part of the magnetic part.

[0038] In this embodiment, the main body is the basic structure of the stopper 1, which is used to fix and support other components, and the magnetic attraction part uses magnetic adsorption force to achieve connection and fixation with the source driving board 3. The magnetic attraction part can be bonded to the main body by epoxy resin adhesive, and pressure can be applied to bond the magnetic attraction part to the main body by using pressure-sensitive tape or film. This method enhances the stability of the overall structure, while achieving a compact structure and saving space.

[0039] In the embodiment of the utility model, the magnetic attraction portion includes a blind hole 12 provided in the main body and a magnetic block. The magnetic block is bonded to a blind hole 12, and the magnetic block is used for magnetic connection and fixation with the back plate.

[0040] In this embodiment, the blind hole 12 is used to accommodate the magnetic block to achieve a magnetic connection with the back plate. The size of the blind hole 12 is about 8mm in outer diameter, and the size of the corresponding magnetic block is 8mm*2mm in outer diameter. The material of the magnetic block can be neodymium iron boron magnet, ferrite magnet and other materials, and the above materials can be easily disassembled. Further, the magnetic block can be bonded to the blind hole 12 with an adhesive so that it does not protrude from the blind hole 12, and the material of the glue is not limited here. Further, the magnetic block can also be injected into the blind hole 12 through a hot melt glue gun, and then the magnetic block is quickly placed. After cooling, the hot melt adhesive solidifies and fixes the magnetic block. The setting of the blind hole 12 allows the magnetic block to be embedded in the interior of the main body, reducing the external protruding part, and the magnetic block is fixed in the blind hole 12 by bonding, ensuring that the magnetic block will not fall off during use, thereby improving the stability of the overall structure.

[0041] In an embodiment of the utility model, the limit member 1 is also provided with a slot 13 which is engaged with the back plate ridge 22. The slot 13 is located in the middle of the limit member 1. At least part of the inner wall of the slot 13 is provided with a chamfer 131 to form a locking structure that matches the back plate ridge.

[0042] In this embodiment, the slot 13 is used to ensure the stable positioning of the stopper 1 on the back plate. In order to facilitate better insertion of the ridge, a chamfer 131 is provided at the periphery of the inner wall of the slot 13. The chamfer 131 is provided on both sides of the entrance of the slot 13. Here, the chamfer 131 is in the shape of an arc, and can also be in the form of a straight chamfer 131, etc., without limitation. This arrangement provides a smooth transition and reduces friction and resistance when inserting the ridge of the back plate.

[0043] In the embodiment of the utility model, the position limiting member 1 includes at least one position limiting section 14, each position limiting section 14 is arranged facing one side of the source driving board 3 and arranged in the extension direction of the source driving board 3, and the position limiting section 14 is used to limit the position of the source driving board 3. In this embodiment, the position limiting section 14 is arranged in various forms, and the position limiting section limits the movement of the source driving board 3 in the horizontal or vertical direction by contacting the source driving board 3 to prevent it from being displaced due to external force or vibration.

[0044] Combination Figure 4 Furthermore, in order to provide a precise positioning point on the same axis, two limit members 1 are provided on the back plate 2, each limit member 1 is provided with a limit section relative to the source driving plate 3, and the two limit members 1 are evenly distributed on both sides of the position above the source driving plate 3 along the center position of the back plate. The limit sections 14 on the two limit members 1 can form a double constraint in the axial direction, thereby reducing the movement error of the source driving plate 3 in the axial direction.

[0045] Combination Figure 3 Furthermore, two limiting sections 14 are included on the same limiting member 1, and the two limiting sections 14 are respectively located in two directions of the limiting member 1, providing more extensive support and positioning, reducing the movement of the object in multiple directions, and enhancing the stability of the overall structure.

[0046] In the embodiment of the utility model, the limiter 1 further includes a connecting section 142, each of which is bent to form a bent limiter section 141, and the connecting section 142 is straight, and the two ends of the connecting section 142 are respectively connected to a bent limiter section 141, and the bent limiter section 141 is arranged at an angle with the connecting section 142. In this embodiment, the connecting section 142 is used to connect the bent limiter sections 141 to form an integral structure.

[0047] Combination Figure 3 , the angle between the bending limit section 141 and the connecting section 142 is set at 90 degrees. Further, the connecting section 142 is set at the end of the bending limit section 141 away from the source driving board 3. At this time, the first connecting portion 11 and the magnetic attraction portion are both set on each bending limit section 141, and the card slot 13 is set on the connecting section 142. This method provides the best mechanical support and installation convenience, while reducing production costs. Furthermore, the connecting section 142 can also be connected to the middle position of the bending limit section 141. Under this setting, the stress distribution can be uniform, the rigidity of the structure can be increased, and the bending or deformation of the bending limit section 141 under load can be reduced. At the same time, the angle between the bending limit section 141 and the connecting section 142 can also be set at 45 degrees. This setting can provide better mechanical properties and installation flexibility. The above embodiments can be adjusted according to specific needs.

[0048] In the embodiment of the present utility model, a limiting plane 143 is formed on one side of each limiting segment facing the source driving board 3 , and each limiting plane 143 is flush with each other, and the limiting plane 143 is used to abut against the source driving board 3 .

[0049] Combination Figure 3 and Figure 4In this embodiment, the limiting plane 143 provides a clear limiting mark for the limiting member 1 to limit the source driving board 3. The high consistency between the limiting planes 143 ensures uniform contact with the source driving board 3, avoiding stress concentration or local wear caused by uneven contact. The limiting planes 143 also ensure the precise positioning of the source driving board 3 during installation and use, preventing unnecessary deviation.

[0050] In an embodiment of the utility model, the limit member 1 includes: a first connecting portion 11, a magnetic attraction portion and a card slot 13, the first connecting portion 11 is arranged to cooperate with the convex bulge of the back panel 2; the magnetic attraction portion includes a blind hole 12 and a magnetic block, the magnetic block is bonded to the blind hole 12, and the magnetic block is used to be magnetically fixed to the back panel; the card slot 13 is used to be carded with the convex ridge 22 of the back panel, and the card slot 13 is arranged between the first connecting portion 11 and the magnetic attraction portion.

[0051] In this embodiment, the first connection portion 11 is used for detachable connection with the back plate 2. The blind hole 12 is used to accommodate the magnetic block to achieve magnetic connection with the back plate 2. The blind hole 12 is provided so that the magnetic block is embedded in the interior of the main body, reducing the external protruding part, and the magnetic block is fixed in the blind hole 12 by bonding, ensuring that the magnetic block will not fall off during use, thereby improving the stability of the overall structure. The card slot 13 is used to ensure the stable positioning of the limiter 1 on the back plate, providing precise positioning and reducing assembly errors.

[0052] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A stopper, used to limit the installation position of a source driving board on a backplane, one end of the backplane is connected to a COF line, characterized in that: The limiting member has a first connecting portion, and the first connecting portion is used for detachably connecting with the back plate; When the first connection portion is connected to the back plate, the stopper is located at a side of the back plate facing away from the COF line.

2. The stopper according to claim 1, characterized in that: The back plate is formed with a second connection portion, and the first connection portion is plugged into the second connection portion.

3. The limiting member according to claim 2, characterized in that: The first connection portion is a through hole, the second connection portion is a protrusion matched with the through hole, and the through hole is plugged into the protrusion.

4. The stopper according to claim 1, characterized in that: The limiting member includes a main body and a magnetic attraction portion, the magnetic attraction portion is bonded to the main body, and the first connecting portion is arranged on the main body and located on the upper part of the magnetic attraction portion.

5. The stopper according to claim 4, characterized in that: The magnetic attraction portion includes a blind hole and a magnetic block provided in the main body portion. The magnetic block is bonded to one of the blind holes, and the magnetic block is used for magnetically connecting and fixing with the back plate.

6. The stopper according to claim 1, characterized in that: The limiting member is also provided with a slot engaged with the convex ridge of the back plate, the slot is located in the middle of the limiting member, and at least part of the inner wall of the slot is chamfered to form a locking structure matched with the convex ridge of the back plate.

7. The stopper according to any one of claims 1 to 6, characterized in that: The limiting member includes at least one limiting section, each of which is arranged facing one side of the source driving board and arranged in the extending direction of the source driving board, and the limiting section is used to limit the position of the source driving board.

8. The stopper according to claim 7, characterized in that: The limiting member also includes a connecting section, each of the limiting sections is bent to form a bent limiting section, the connecting section is straight, and both ends of the connecting section are respectively connected to a bent limiting section, and the bent limiting section and the connecting section are arranged at an angle.

9. The stopper according to claim 7, characterized in that: A limiting plane is formed on a side of each limiting segment facing the source driving board, and each limiting plane is flush with the other, and the limiting plane is used to abut against the source driving board.

10. The limiting member according to claim 1 or 7, characterized in that: The limiting component includes: a first connecting part, a magnetic attraction part and a card slot, the first connecting part is arranged to cooperate with the convex bump of the back plate; the magnetic attraction part includes a blind hole and a magnetic block, the magnetic block is bonded to the blind hole, and the magnetic block is used to be magnetically connected and fixed to the back plate; the card slot is used to be carded with the convex ridge of the back plate, and the card slot is arranged between the first connecting part and the magnetic attraction part.

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