Static conduction structure of display module

Abstract

The utility model discloses an electrostatic conduction structure of a display module. The electrostatic conduction structure comprises a rubber shell, and a buckle position is arranged on the inner side of the rubber shell; the backlight iron stand is arranged on the inner side of the rubber shell, a fastener is arranged on the backlight iron stand, and the backlight iron stand is buckled in the rubber shell through the matching of the fastener and the buckling position to be assembled; and the avoiding position is punched on the outer side of the rubber shell and avoids the buckling position of the buckling position and the backlight iron stand, and a conductive foam rubber body is arranged in the avoiding position. According to the static conduction structure of the display module provided by the utility model, the avoiding position is arranged on the rubber shell, so that the conductive foam colloid is pasted in the avoiding position, and the backlight iron stand and the upper iron stand are contacted and conducted through the conductive foam colloid, so that the requirement of static conduction in the upper iron stand is met; and interference assembly between the upper iron stand and the backlight iron stand is not needed, so that the problem that the subsequent further assembly and the electrostatic conduction effect are easily influenced by iron sheet deformation caused by interference assembly is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to an electrostatic conduction structure of a display module. Background Art

[0002] LED display unit board, also known as LED display module or simply unit board, is the main component of LED display, which is composed of LED light-emitting diodes and driving circuits, driving ICs and plastic kits. In the LED display industry, LED unit boards are now divided into two categories. Indoor unit boards are generally called surface mount (three-in-one surface mount) in the industry; outdoor and semi-outdoor are generally called modules. The characteristics of indoor surface mount: high image clarity, rich colors, but the disadvantage is that the price is high; the characteristics of outdoor and semi-outdoor module unit boards: high brightness, waterproof, rich colors, but the disadvantage is that installation requires technical guidance.

[0003] At present, in the conventional design of the display module, the upper iron frame therein is conducted by matching with the backlight iron frame, so as to realize the electrostatic conduction in the upper iron frame. This scheme requires the upper iron frame and the backlight iron frame to have an interference fit to achieve a tight fit and conduction. Therefore, in the actual application process, it is found that the tail iron sheet at the interference fit position is prone to warping, resulting in the overall size being easily exceeded, affecting the subsequent further assembly of the customer, and the warped iron sheet after the interference fit also reduces the effective contact area between the upper iron frame and the backlight iron frame, resulting in a decrease in the electrostatic conduction ability. Therefore, a display module electrostatic conduction structure is proposed. Utility Model Content

[0004] Based on this, it is necessary to provide an electrostatic conduction structure for a display module to address the above technical problems. An avoidance position is opened on the plastic shell to allow a conductive foam colloid to be pasted inside. The conductive foam colloid is used to conduct electricity between the backlight iron frame and the upper iron frame to meet the electrostatic conduction capability without the need for interference assembly which may easily affect subsequent assembly.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A display module electrostatic conduction structure, comprising:

[0007] A plastic shell, wherein a buckle position is provided on the inner side of the plastic shell;

[0008] A backlight iron frame is arranged on the inner side of the plastic shell. A fastener is arranged on the backlight iron frame. The backlight iron frame is assembled by being fastened to the inside of the plastic shell through the fastener and the buckle position;

[0009] An avoidance position is punched out of the outer side of the plastic shell and avoids the buckle position and the backlight iron frame buckle position, wherein a conductive foam colloid is arranged in the avoidance position;

[0010] The upper iron frame is assembled on the outside of the plastic housing to jointly form a display module frame;

[0011] Wherein, both sides of the conductive foam colloid are respectively in contact and fit with the surfaces of the upper iron frame and the backlight iron frame for static electricity conduction.

[0012] Further, both sides of the conductive foam colloid respectively have a paste inner surface and a paste outer surface;

[0013] The paste inner surface and the paste outer surface are respectively pasted with the corresponding backlight iron frame and upper iron frame.

[0014] Further, the thickness of the conductive foam colloid is greater than the depth of the avoidance position. After the upper iron frame and the backlight iron frame are assembled, the conductive foam colloid will be extruded into the avoidance position for static electricity conduction.

[0015] Further, at both ends of the plastic housing near the outer edge of the avoidance position, insertion slopes are also provided, and the insertion slopes are connected and conduct with the avoidance position.

[0016] Further, the depth of the insertion slope is one-third of the depth of the avoidance position.

[0017] Further, check structures are fixed on both side walls of the avoidance position. The conductive foam colloid in the avoidance position under the action of the check structures will not slip outwards.

[0018] Further, the check structure includes check teeth, and the check teeth have sharp parts and extend towards the direction of the backlight iron frame.

[0019] Further, there are multiple check structures, and the multiple check structures are evenly distributed on both side walls of the avoidance position.

[0020] Further, the outside of the plastic housing has an external snap position, and the inside of the upper iron frame is provided with an internal snap groove. The upper iron frame is assembled outside the plastic housing through the snap fit of the internal snap groove and the external snap position.

[0021] Further, there are multiple avoidance positions, and the multiple avoidance positions are evenly distributed on the same side of the plastic housing;

[0022] Multiple static electricity conductions between the upper iron frame and the backlight iron frame are formed by multiple conductive foam colloids in the multiple avoidance positions.

[0023] Compared with the prior art, the present utility model has the following beneficial effects:

[0024] The display module electrostatic conduction structure provided by the utility model has an avoidance position opened on the plastic shell so that a conductive foam colloid is pasted inside it, and the backlight iron frame and the upper iron frame are contact-conducted by the conductive foam colloid to meet the demand for static electricity conduction in the upper iron frame. Compared with the traditional display module, there is no need to perform interference fitting between the upper iron frame and the backlight iron frame, thereby avoiding the problem that the deformation of the iron sheet caused by the interference fitting easily affects the subsequent further assembly and the electrostatic conduction effect.

[0025] Through the design of the non-return structure, after the conductive foam colloid is placed in the avoidance position and first adhered to the backlight iron frame, the sharp part blocks it, so that the conductive foam colloid is not easy to slip outward and meets its subsequent overall stability of use. At the same time, with the design of multiple conductive foam colloids, the ability to conduct static electricity to the upper iron frame is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of the electrostatic conduction structure of the display module provided by the utility model;

[0027] Figure 2 The utility model provides a display module electrostatic conduction structure Figure 1 The enlarged structural diagram at A in the middle;

[0028] Figure 3 A schematic diagram of the side cross-section structure of the electrostatic conduction structure of the display module provided by the utility model;

[0029] Figure 4 A schematic diagram of the side structure of the electrostatic conduction structure of the display module provided by the utility model;

[0030] Figure 5 A schematic diagram of the conductive foam colloid structure of the display module electrostatic conduction structure provided by the utility model;

[0031] Figure 6 A schematic diagram of a top view of the conductive foam colloid structure of the display module electrostatic conduction structure provided by the utility model;

[0032] Figure 7 A schematic diagram of the placement slope structure of the electrostatic conduction structure of the display module provided by the utility model;

[0033] Figure 8 The utility model provides a display module electrostatic conduction structure Figure 7 The enlarged structural diagram at B in the middle;

[0034] Figure 9 A schematic diagram of the buckling structure of the upper iron frame and the backlight iron frame of the display module electrostatic conduction structure provided by the utility model;

[0035] Figure 10Partial structural schematic diagram after the upper iron frame and the backlight iron frame of the static conduction structure of the display module provided by the present utility model are buckled;

[0036] Figure 11 Of the static conduction structure of the display module provided by the present utility model Figure 10 Enlarged structural schematic diagram at position C in the figure.

[0037] The markings in the figure are explained as follows:

[0038] Plastic shell 1, buckle position 11, outer buckle position 12;

[0039] Backlight iron frame 2, fastener 21;

[0040] Avoidance position 3, insertion inclined surface 31;

[0041] Conductive foam colloid 4, paste inner surface 41, paste outer surface 42, inner buckle groove 43;

[0042] Check structure 5, check teeth 51, sharp part 52;

[0043] Upper iron frame 6. Specific implementation mode

[0044] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0045] As described in the background art, the end iron sheet at the interference fit position is prone to warping, resulting in an overall size that is likely to exceed the standard, affecting subsequent further assembly by customers. Moreover, the warped iron sheet after interference fit also reduces the effective contact area between the upper iron frame and the backlight iron frame, leading to a decrease in its static conduction ability.

[0046] To solve this technical problem, the present utility model provides a static conduction structure for a display module, which is applied to the display module.

[0047] Specifically, please refer to Figures 1-11 , the static conduction structure of the display module specifically includes:

[0048] Plastic shell 1, with a buckle position 11 provided on the inner side of the plastic shell 1;

[0049] Backlight iron frame 2, which is arranged on the inner side of the plastic shell 1. A fastener 21 is provided on the backlight iron frame 2, and the backlight iron frame 2 is assembled by being buckled to the inside of the plastic shell 1 through the cooperation of the fastener 21 and the buckle position 11;

[0050] A relief position 3 is punched on the outer side of the plastic shell 1 and avoids the fastening position where the buckle position 11 and the backlight iron frame 2 are fastened. Among them, a conductive foam colloid 4 is arranged in the relief position 3;

[0051] An upper iron frame 6 is assembled on the outer side of the plastic shell 1 to jointly form a display module frame;

[0052] Among them, both sides of the conductive foam colloid 4 are respectively in contact and fit with the surfaces of the upper iron frame 6 and the backlight iron frame 2 for the conduction of static electricity.

[0053] For the display module static conduction structure provided by the present utility model, a relief position 3 is opened on the plastic shell 1 and a conductive foam colloid 4 is pasted therein. The conductive foam colloid 4 is used for contact conduction between the backlight iron frame 2 and the upper iron frame 6 to meet the requirement of static electricity export in the upper iron frame 6. Compared with the traditional display module, there is no need for interference fit between the upper iron frame 6 and the backlight iron frame 2, thus avoiding the problems that the iron sheet deformation caused by interference fit is likely to affect subsequent further assembly and static conduction effect.

[0054] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0055] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0056] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0057] Please refer to Figures 1-11 , a display module static conduction structure, including: a plastic shell 1, with a buckle position 11 arranged on the inner side of the plastic shell 1; a backlight iron frame 2, which is arranged on the inner side of the plastic shell 1, and a fastener 21 is arranged on the backlight iron frame 2. The backlight iron frame 2 is assembled in the plastic shell 1 by cooperating with the buckle position 11 through the fastener 21; a relief position 3 is punched on the outer side of the plastic shell 1 and avoids the fastening position where the buckle position 11 and the backlight iron frame 2 are fastened. Among them, a conductive foam colloid 4 is arranged in the relief position 3;

[0058] An upper iron frame 6 is assembled on the outer side of the plastic shell 1 to jointly form a display module frame. Among them, both sides of the conductive foam colloid 4 are respectively in contact and fit with the surfaces of the upper iron frame 6 and the backlight iron frame 2 for the conduction of static electricity;

[0059] As Figure 11As shown, both sides of the conductive foam colloid 4 have a pasting inner surface 41 and a pasting outer surface 42, and the pasting inner surface 41 and the pasting outer surface 42 are respectively pasted to the corresponding backlight iron frame 2 and the upper iron frame 6;

[0060] During the actual application process, the conductive foam colloid 4 is placed into the avoidance position 3 and pasted to the backlight iron frame 2 through the pasting inner surface 41;

[0061] The outer side of the plastic shell 1 has an outer snap position 12, and the inner side of the upper iron frame 6 is provided with an inner snap groove 43. The upper iron frame 6 is assembled to the outside of the plastic shell 1 through the snap fit of the inner snap groove 43 and the outer snap position 12. The outer snap position 12 and the inner snap groove 43 in this display module only need to meet the requirement that the plastic shell 1 and the upper iron frame 6 can complete the snap fit, and there is no need for interference fit;

[0062] The snap fit method between the snap positions 11, the fasteners 21, the outer snap position 12 and the inner snap groove 43 in this embodiment is an existing technology that is mature and perfect in the field of display modules, and no further elaboration is required in this embodiment;

[0063] After the above-mentioned conductive foam colloid 4 is pasted, the side of the upper iron frame 6 close to the conductive foam colloid 4 is first snap-fitted to the plastic shell 1 through the inner snap groove 43 and the outer snap position 12 (to prevent the conductive foam colloid 4 from being squeezed out), and then the other sides are snap-fitted in turn. After the upper iron frame 6 is completely snap-fitted to the plastic shell 1, the pasting outer surface 42 on the conductive foam colloid 4 will form a paste with the inner side of the upper iron frame 6, so that the static electricity between the upper iron frame 6 and the backlight iron frame 2 can be conducted through the action of the conductive foam colloid 4 to meet the requirement of discharging the static electricity on the upper iron frame 6. Compared with the traditional display module, there is no need for interference fit between the upper iron frame 6 and the backlight iron frame 2, thus avoiding the problem that the deformation of the iron sheet caused by interference fit is likely to affect the subsequent further assembly and the static electricity conduction effect.

[0064] Further optimize the static electricity conduction structure of the display module provided in Embodiment 1. Specifically, as Figure 11 shown, the thickness of the conductive foam colloid 4 is greater than the depth of the avoidance position 3. After the upper iron frame 6 and the backlight iron frame 2 are assembled, the conductive foam colloid 4 will be squeezed in the avoidance position 3 for static electricity conduction;

[0065] Since the thickness of the conductive foam colloid 4 is slightly greater than the depth of the avoidance position 3, after the conductive foam colloid 4 is pasted to the corresponding position on the plastic shell 1 through the pasting inner surface 41, the pasting outer surface 42 on the conductive foam colloid 4 will protrude outside the avoidance position 3. In this way, when the upper iron frame 6 is snap-fitted to the colloid 1, it will form a squeeze on the conductive foam colloid 4. The two sides of the conductive foam colloid 4 under the squeezing action will abut against the inner side of the upper iron frame 6 and the outer side of the backlight iron frame 2, thus ensuring the stability during static electricity conduction and avoiding affecting static electricity conduction due to having gaps;

[0066] As a further optimization of this embodiment: there are multiple avoidance positions 3, and the multiple avoidance positions 3 are equidistantly distributed on the same side of the plastic shell 1, and the multiple avoidance positions 3 form electrostatic conduction between the upper iron frame 6 and the backlight iron frame 2 through the multiple conductive foam colloids 4 therein;

[0067] The design of multiple avoidance positions 3 enhances the static electricity conduction performance on the upper iron frame 6.

[0068] The electrostatic conduction structure of the display module provided in Example 1 or 2 is further optimized, such as Figure 7 and Figure 8 As shown, both ends of the plastic shell 1 near the outer edge of the avoidance position 3 are also provided with an insertion slope 31, the insertion slope 31 is connected and conducted with the avoidance position 3, and the depth of the insertion slope 31 is one third of the depth of the avoidance position 3;

[0069] By setting the insertion slope 31, when pasting the conductive foam colloid 4, the operator can have more operating space, so that the conductive foam colloid 4 can be aligned and placed in the avoidance position 3. On the other hand, it is convenient to press the conductive foam colloid 4 more evenly after placement, so that the pasting inner surface 41 on it can be more firmly adhered to the backlight iron frame 2, avoiding the problem of falling off when the upper iron frame 6 is buckled and installed.

[0070] The electrostatic conduction structure of the display module provided in Example 3 is further optimized, such as Figure 7 and Figure 8 As shown, both side walls of the avoidance position 3 are fixed with a non-return structure 5, and the conductive foam colloid 4 in the avoidance position 3 will not slip outward under the action of the non-return structure 5. The non-return structure 5 includes a non-return tooth 51, and the non-return tooth 51 has a sharp portion 52 and extends toward the backlight iron frame 2. The non-return tooth 51 can retain part of the plastic shell 1 when punching the avoidance position 3, so as to provide the non-return tooth 51 for further punching and forming;

[0071] like Figure 11 As shown, by setting the check teeth 51, after the conductive foam colloid 4 is completely pushed into the avoidance position 3, the check teeth 51 will partially penetrate the two sides of the conductive foam colloid 4 to form a support and positioning for the conductive foam colloid 4 on both sides, and at the same time, it can form an obstacle for the conductive foam colloid 4 to fall off outward, further ensuring the stability of the conductive foam colloid 4;

[0072] There are multiple non-return structures 5 , and the multiple non-return structures 5 are distributed at equal intervals on the two side walls of the avoidance position 3 .

[0073] The usage process of the electrostatic conduction structure of the display module provided by the present utility model is as follows: After the plastic shell 1 and the backlight iron frame 2 are buckled, the conductive foam colloid 4 is attached to the backlight iron frame 2 through the inner surface 41 by pasting, and then the side of the upper iron frame 6 corresponding to the conductive foam colloid 4 is buckled on the plastic shell 1 first, and then the other sides are successively pressed and buckled. After the upper iron frame 6 is completely buckled on the plastic shell 1, both sides of the conductive foam colloid 4 will respectively contact the inner side of the upper iron frame 6 and the outer side of the backlight iron frame 2 to form electrostatic conduction on the upper iron frame 6.

[0074] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0075] Obviously, the above-described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. The preferred embodiments of the present utility model are given in the drawings, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields is equally within the scope of the patent protection of the present utility model.

Claims

1. A display module electrostatic conduction structure, characterized in that: It includes: A plastic shell (1), wherein a buckle position (11) is provided on the inner side of the plastic shell (1); A backlight iron frame (2) is arranged on the inner side of the plastic shell (1), and a fastener (21) is provided on the backlight iron frame (2). The backlight iron frame (2) is assembled in the plastic shell (1) by engaging the fastener (21) with the snap-fit ​​position (11); An avoidance position (3) is punched out on the outer side of the plastic shell (1) and avoids the buckle position (11) and the buckle position with the backlight iron frame (2), wherein a conductive foam colloid (4) is provided in the avoidance position (3); An upper iron frame (6) which is assembled on the outer side of the plastic shell (1) to form a display module frame; Wherein, two sides of the conductive foam colloid (4) are respectively in contact with and adhered to the surface of the upper iron frame (6) and the backlight iron frame (2) for the conduction of static electricity.

2. The display module electrostatic conduction structure according to claim 1, characterized in that: The conductive foam colloid (4) has an adhesive inner surface (41) and an adhesive outer surface (42) on both sides respectively; The pasting inner surface (41) and the pasting outer surface (42) are pasted to the corresponding backlight iron frame (2) and upper iron frame (6) respectively.

3. The display module electrostatic conduction structure according to claim 1, characterized in that: The thickness of the conductive foam colloid (4) is greater than the depth of the avoidance position (3), and after the upper iron frame (6) and the backlight iron frame (2) are assembled, the conductive foam colloid (4) will be squeezed into the avoidance position (3) to conduct static electricity.

4. The display module electrostatic conduction structure according to claim 1, characterized in that: Insertion bevels (31) are also provided at both ends of the plastic shell (1) near the outer edges of the avoidance position (3), and the insertion bevels (31) are connected and conductively connected to the avoidance position (3).

5. The display module electrostatic conduction structure according to claim 4, characterized in that: The depth of the inserted inclined surface (31) is one third of the depth of the avoidance position (3).

6. The display module electrostatic conduction structure according to claim 1, characterized in that: Both side walls of the avoidance position (3) are fixed with non-return structures (5), and the conductive foam colloid (4) in the avoidance position (3) will not slip outwards due to the action of the non-return structures (5).

7. The display module electrostatic conduction structure according to claim 6, characterized in that: The non-return structure (5) comprises a non-return tooth (51), wherein the non-return tooth (51) has a sharp portion (52) and extends towards the backlight iron frame (2).

8. The display module electrostatic conduction structure according to claim 7, characterized in that: The non-return structure (5) comprises a plurality of non-return structures (5), and the plurality of non-return structures (5) are distributed at equal intervals on the two side walls of the avoidance position (3).

9. The display module electrostatic conduction structure according to claim 1, characterized in that: The outer side of the plastic shell (1) has an outer buckle position (12), the inner side of the upper iron frame (6) has an inner buckle groove (43), and the upper iron frame (6) is assembled on the outside of the plastic shell (1) by buckling the inner buckle groove (43) with the outer buckle position (12).

10. The display module electrostatic conduction structure according to claim 1, characterized in that: There are a plurality of the avoidance positions (3), and the plurality of the avoidance positions (3) are equidistantly distributed on the same side of the rubber shell (1); The plurality of avoidance positions (3) form electrostatic conduction between the upper iron frame (6) and the backlight iron frame (2) through the plurality of conductive foam colloids (4) therein.

Images