Module dustproof optimization structure

Abstract

The utility model discloses a module dustproof optimization structure which comprises a backlight rubber frame, a display screen, a backlight module, a display FPC and a backlight FPC, the display screen and the backlight module are both installed in the backlight rubber frame, the bottom end of the display screen is provided with a first plane and a second plane, one end of the display FPC is bound to the second plane, and the other end of the display FPC is bound to the backlight module. One end of the backlight FPC is connected with the bottom end of the backlight module in a binding mode, and the other end of the display FPC and the other end of the backlight FPC are both located outside the backlight rubber frame. According to the module dustproof optimization structure provided by the utility model, the bottom end of the double-sided adhesive tape is moved upwards by removing the double-sided adhesive tape at the position of the open cavity of the display screen, and meanwhile, the sponge with the single-sided adhesive tape is additionally pasted at the position of the open cavity of the display screen, so that when the upper iron stand and the backlight rubber frame are buckled and fixed, the sponge can be compressed, and the upper iron stand and the backlight rubber frame can be prevented from being damaged. At the moment, the open cavity can be filled with soft sponge as much as possible, so that dust is prevented from entering the inside of the module to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of dust prevention of display modules, and particularly relates to an optimized structure for dust prevention of modules. Background Technique

[0002] With the rapid development of the electronic industry and information technology, as an important component of electronic products, display screens have been applied in more and more products, and the production industry has also developed rapidly. They are widely used in products such as mobile phones, digital cameras, and in-vehicle displays. Most of the display screen modules on the market are backlight liquid crystal display devices, which include a liquid crystal panel and a backlight module. The working principle of the liquid crystal panel is to place liquid crystal molecules between two parallel glass substrates, and control the liquid crystal molecules to change directions by energizing or not energizing the glass substrates, and refract the light of the backlight module to generate an image.

[0003] As Figure 1 and Figure 2 shown, for the display screen module 112 with an iron frame 111, when attaching a cover plate, in order to make the display screen module 112 dust-proof as much as possible, when the buckle gap between the upper iron frame 111 and the backlight 113 is 0.08 - 0.12 mm, a double-sided adhesive 114 will be attached around the bottom surface of the iron frame 111 to stick the gap. Since the display screen module 112 needs to bind ICs and FPCs, the glass has a stepped structure. After the upper iron frame 111 is buckled, a cavity will be formed between the double-sided adhesive 114 of the iron frame 111 and the stepped part of the display screen module 112. And in order to lead out the FPC, openings will be made in the backlight and the iron frame, thus forming an open cavity, resulting in a very limited dust-proof effect of the double-sided adhesive 114. Summary of the Utility Model

[0004] Based on this, in view of the above technical problems, it is necessary to provide an optimized structure for dust prevention of modules. By setting a first plane and a second plane at the bottom end of the display screen, binding the display FPC at the second plane, and removing the double-sided adhesive at the open cavity position of the display screen to move the bottom end of the double-sided adhesive upward. When the upper iron frame is buckled and fixed with the backlight rubber frame, one end of the double-sided adhesive fits with the first plane on the display screen, and the other end of the double-sided adhesive fits with the crimping surface on the upper iron frame. At this time, the double-sided adhesive can well fill the gap between the upper iron frame and the backlight rubber frame, improving the sealing performance of the module. At the same time, a sponge with a single-sided adhesive is attached at the open cavity position of the display screen. When the upper iron frame is buckled and fixed with the backlight rubber frame, since the sponge can be compressed, at this time, the open cavity position can be filled as much as possible with the soft sponge, thereby preventing dust from entering the module interior to the greatest extent.

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

[0006] An optimized structure for dust prevention of modules, comprising:

[0007] A backlight rubber frame, a display screen, and a backlight module, wherein both the display screen and the backlight module are installed inside the backlight rubber frame, and a first plane and a second plane are provided at the bottom end of the display screen;

[0008] A display FPC and a backlight FPC, one end of the display FPC is bonded at the second plane, one end of the backlight FPC is bonded and connected to the bottom end of the backlight module, and the other ends of the display FPC and the backlight FPC are both located outside the backlight rubber frame;

[0009] An upper iron frame and a double-sided adhesive, a through hole is formed on the upper iron frame and a crimping surface is formed, the upper iron frame is buckled and fixed with the backlight rubber frame, and the double-sided adhesive is located between the crimping surface and the first plane;

[0010] A sponge, a cavity is formed between the second plane and the crimping surface, and the sponge is located inside the cavity.

[0011] Further, a single-sided adhesive is fixedly connected to the left side of the sponge, and the sponge is fixedly connected to the crimping surface through the single-sided adhesive.

[0012] Further, the thickness of the sponge is 0.60 mm, and the thickness of the compressed sponge is 0.25 - 0.3 mm.

[0013] Further, the sponge has a T-shaped structure, and avoidance grooves for avoiding the upper iron frame are provided on both the left and right sides of the sponge.

[0014] Further, the display screen includes a polarizer, an upper glass substrate, a lower glass substrate, and a lower polarizer connected in sequence, and the second plane is formed by the lower glass substrate extending from the bottom end of the upper glass substrate.

[0015] Further, it further includes a cover plate, and the cover plate is installed on the left side of the upper iron frame.

[0016] Further, a gap is left between the sponge and the double-sided adhesive, and the width of the gap is 0.5 mm.

[0017] Further, the thickness of the double-sided adhesive is 0.05 - 0.1 mm.

[0018] Further, the other end of the backlight FPC is bonded to the display FPC, and the display FPC is fixedly connected to the right side of the backlight rubber frame through a double-layer back adhesive.

[0019] Further, both the backlight FPC and the display FPC are a kind of highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the substrate.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The dust-proof optimization structure of the module provided by the utility model can well fill the gap between the upper iron frame and the backlight rubber frame by setting a double-sided adhesive with an appropriate thickness, improve the sealing performance of the module, and the backlight FPC and the display FPC are bent to the rear side of the backlight rubber frame and then bonded together. At the same time, the display FPC is adhesively fixed to the back of the backlight rubber frame through a double-layer back adhesive to prevent the display FPC from falling off.

[0022] The dust-proof optimization structure of the module provided by the utility model has a first plane and a second plane at the bottom end of the display screen. The display FPC is bonded at the second plane, and the double-sided adhesive at the open cavity position of the display screen is removed, so that the bottom end of the double-sided adhesive is moved upward. When the upper iron frame and the backlight rubber frame are buckled and fixed, one end of the double-sided adhesive fits with the first plane on the display screen, and the other end of the double-sided adhesive fits with the crimping surface on the upper iron frame. At this time, the double-sided adhesive 9 can well fill the gap between the upper iron frame 8 and the backlight rubber frame 1, improve the sealing performance of the module, and at the same time, a sponge with a single-sided adhesive is additionally pasted at the open cavity position of the display screen. When the upper iron frame and the backlight rubber frame are buckled and fixed, since the sponge can be compressed, the open cavity position can be filled as much as possible with the soft sponge at this time, so as to prevent dust from entering the module interior to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic cross-sectional view of an existing module;

[0024] Figure 2 is of an existing module Figure 1 an enlarged schematic view of part A in;

[0025] Figure 3 is a front view cross-sectional schematic view of the dust-proof optimization structure of the module provided by the utility model;

[0026] Figure 4 is of the dust-proof optimization structure of the module provided by the utility model Figure 3 an enlarged schematic view of part B in;

[0027] Figure 5 is a front view schematic view of the upper iron frame of the dust-proof optimization structure of the module provided by the utility model;

[0028] Figure 6 is a cross-sectional schematic view of the display screen of the dust-proof optimization structure of the module provided by the utility model.

[0029] The markings in the figures are explained as follows:

[0030] 1. Backlight plastic frame; 2. Display screen; 3. Backlight module; 4. First plane; 5. Second plane; 6. Display FPC; 7. Backlight FPC; 8. Upper iron frame; 9. Double-sided tape; 10. Through hole; 11. Crimping surface; 12. Sponge; 13. Cover plate; 14. Single-sided tape; 15. Avoidance groove; 16. Gap; 17. Double-sided adhesive; 201. Upper polarizer; 202. Upper glass substrate; 203. Lower glass substrate; 204. Lower polarizer. Detailed implementation mode

[0031] 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 creative work shall fall within the protection scope of the present utility model.

[0032] As described in the background art, the glass of the existing display screen has a stepped structure. After the upper iron frame is buckled, a cavity will be formed between the double-sided tape of the iron frame and the step, thus forming an open cavity, resulting in a very limited dust-proof effect of the double-sided tape.

[0033] To solve this technical problem, the present utility model provides a module dust-proof optimization structure. By removing the double-sided tape 9 at the open cavity position of the display screen 2, the bottom end of the double-sided tape 9 is moved upward. At the same time, a sponge 12 with a single-sided tape 14 is pasted at the open cavity position of the display screen 2. When the upper iron frame 8 is buckled and fixed with the backlight plastic frame 1, since the sponge 12 can be compressed, at this time, the soft sponge 12 can be used to fill the open cavity position as much as possible, thereby preventing dust from entering the module interior to the greatest extent.

[0034] Specifically, please refer to Figure 2-6 , the module dust-proof optimization structure specifically includes:

[0035] A backlight plastic frame 1, a display screen 2 and a backlight module 3. The display screen 2 and the backlight module 3 are both installed inside the backlight plastic frame 1. The bottom end of the display screen 2 is provided with a first plane 4 and a second plane 5;

[0036] A display FPC 6 and a backlight FPC 7. One end of the display FPC 6 is bound at the second plane 5, and one end of the backlight FPC 7 is bound and connected to the bottom end of the backlight module 3. The other ends of the display FPC 6 and the backlight FPC 7 are both located outside the backlight plastic frame 1;

[0037] The upper iron frame 8 and the double-sided adhesive 9. The upper iron frame 8 is provided with a through hole 10 and forms a crimping surface 11. The upper iron frame 8 is buckled and fixed with the backlight rubber frame 1. The double-sided adhesive 9 is located between the crimping surface 11 and the first plane 4;

[0038] The sponge 12. A cavity is formed between the second plane 5 and the crimping surface 11. The sponge 12 is located inside the cavity.

[0039] The module dust-proof optimization structure provided by the present utility model. By arranging the first plane 4 and the second plane 5 at the bottom end of the display screen 2, the display FPC 6 is bound at the second plane 5, and removing the double-sided adhesive 9 at the open cavity position of the display screen 2 to move the bottom end of the double-sided adhesive 9 upward. When the upper iron frame 8 is buckled and fixed with the backlight rubber frame 1, one end of the double-sided adhesive 9 fits with the first plane 4 on the display screen 2, and the other end of the double-sided adhesive 9 fits with the crimping surface 11 on the upper iron frame 8. At this time, the double-sided adhesive 9 can well fill the gap between the upper iron frame 8 and the backlight rubber frame 1, improving the sealing performance of the module. At the same time, a sponge 12 with a single-sided adhesive 14 is additionally pasted at the open cavity position of the display screen 2. When the upper iron frame 8 is buckled and fixed with the backlight rubber frame 1, since the sponge 12 can be compressed, at this time, the soft sponge 12 can fill the open cavity position as much as possible, thereby preventing dust from entering the module interior to the greatest extent.

[0040] 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.

[0041] 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.

[0042] It should be noted that similar reference numerals and letters indicate 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.

[0043] Please refer to Figure 2-6 , a module dust-proof optimization structure, which includes a backlight rubber frame 1, a display screen 2 and a backlight module 3. The display screen 2 and the backlight module 3 are both installed inside the backlight rubber frame 1. The bottom end of the display screen 2 is provided with a first plane 4 and a second plane 5;

[0044] The display FPC 6 and the backlight FPC 7. One end of the display FPC 6 is bound at the second plane 5, one end of the backlight FPC 7 is bound and connected to the bottom end of the backlight module 3, and the other ends of the display FPC 6 and the backlight FPC 7 are both located outside the backlight rubber frame 1;

[0045] The upper iron frame 8 and the double-sided adhesive 9. The upper iron frame 8 is provided with a through hole 10 and forms a crimping surface 11. The upper iron frame 8 is fastened and fixed to the backlight rubber frame 1. The double-sided adhesive 9 is located between the crimping surface 11 and the first plane 4;

[0046] The sponge 12. A cavity is formed between the second plane 5 and the crimping surface 11. The sponge 12 is located inside the cavity.

[0047] Please refer to Figure 2-6 , by removing the double-sided adhesive 9 at the open cavity position of the display screen 2, the bottom end of the double-sided adhesive 9 is moved upward. When the upper iron frame 8 is fastened and fixed to the backlight rubber frame 1, one end of the double-sided adhesive 9 is attached to the first plane 4 on the display screen 2, and the other end of the double-sided adhesive 9 is attached to the crimping surface 11 on the upper iron frame 8. At this time, the double-sided adhesive 9 can well fill the gap between the upper iron frame 8 and the backlight rubber frame 1, improving the sealing performance of the module. At the same time, a sponge 12 with a single-sided adhesive 14 is additionally attached at the open cavity position of the display screen 2. When the upper iron frame 8 is fastened and fixed to the backlight rubber frame 1, since the sponge 12 can be compressed, at this time, the soft sponge 12 can fill the open cavity position as much as possible, thus preventing dust from entering the module interior to the greatest extent.

[0048] Further optimize the module dust-proof optimization structure provided in Embodiment 1. Specifically, as Figure 3 and Figure 4 shown, the left side of the sponge 12 is fixedly connected with a single-sided adhesive 14. The sponge 12 is fixedly connected to the crimping surface 11 through the single-sided adhesive 14. This setting makes the sponge 12 fixed to the upper iron frame 8, and the installation is more convenient. The thickness of the sponge 12 is 0.60 mm, and the thickness of the compressed sponge is 0.25 - 0.3 mm. This setting enables the sponge 12 to be reasonably compressed when the upper iron frame 8 is fastened and fixed to the backlight rubber frame 1, filling the open cavity position as much as possible;

[0049] As Figure 3 and Figure 5 shown, the sponge 12 has a T-shaped structure. Avoidance grooves 15 for avoiding the upper iron frame 8 are provided on both the left and right sides of the sponge 12. The display screen 2 includes a upper polarizer 201, an upper glass substrate 202, a lower glass substrate 203, and a lower polarizer 204 connected in sequence. The second plane 5 is formed by the bottom end of the lower glass substrate 203 extending out of the upper glass substrate 202. This setting will not be affected when the upper iron frame 8 is fastened and fixed to the backlight rubber frame 1.

[0050] Further optimize the module dust-proof optimization structure provided in Embodiment 1 or 2. As Figure 3 and Figure 4As shown, it further includes a cover plate 13. The cover plate 13 is installed on the left side of the upper iron frame 8. There is a gap 16 between the sponge 12 and the double-sided adhesive 9. The width of the gap 16 is 0.5 mm, and the thickness of the double-sided adhesive 9 is 0.05 - 0.1 mm. Such a setting enables the double-sided adhesive 9 to well fill the gap between the upper iron frame 8 and the backlight rubber frame 1, improving the sealing performance of the module.

[0051] The module dust-proof optimization structure provided in the above embodiments is further optimized. For example, Figure 3 and Figure 6 As shown, the other end of the backlight FPC 7 is bound to the display FPC 6. The display FPC 6 is fixedly connected to the right side of the backlight rubber frame 1 through a double-sided adhesive 17. Both the backlight FPC 7 and the display FPC 6 are a kind of highly reliable and excellent flexible printed circuit boards made of polyimide or polyester film as the base material.

[0052] By setting, it is very convenient to bend the backlight FPC 7 and the display FPC 6. And the double-sided adhesive 17 enables the display FPC 6 to be adhesively fixed to the back of the backlight rubber frame 1, preventing the display FPC 6 from falling off.

[0053] The using process of the module dust-proof optimization structure provided by the present utility model is as follows:

[0054] By setting the bottom end of the display screen 2 with a first plane 4 and a second plane 5, the display FPC 6 is bound at the second plane 5, and removing the double-sided adhesive 9 at the open cavity position of the display screen 2 to move the bottom end of the double-sided adhesive 9 upward. When the upper iron frame 8 and the backlight rubber frame 1 are buckled and fixed, one end of the double-sided adhesive 9 fits with the first plane 4 on the display screen 2, and the other end of the double-sided adhesive 9 fits with the crimping surface 11 on the upper iron frame 8. At this time, the double-sided adhesive 9 can well fill the gap between the upper iron frame 8 and the backlight rubber frame 1, improving the sealing performance of the module. At the same time, a sponge 12 with a single-sided adhesive 14 is additionally pasted at the open cavity position of the display screen 2. When the upper iron frame 8 and the backlight rubber frame 1 are buckled and fixed, since the sponge 12 can be compressed, at this time, the soft sponge 12 can fill the open cavity position as much as possible, thus preventing dust from entering the module interior to the greatest extent.

[0055] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. shall 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 communication inside 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.

[0056] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of them. The preferred embodiments of the present utility model are shown in the accompanying drawings, but they 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 recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structures directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields are similarly within the scope of the patent protection of the present utility model.

Claims

1. An optimized dust-proof structure for a module, characterized in that, It includes: A backlight rubber frame (1), a display screen (2) and a backlight module (3). Both the display screen (2) and the backlight module (3) are installed inside the backlight rubber frame (1). A first plane (4) and a second plane (5) are provided at the bottom end of the display screen (2); A display FPC (6) and a backlight FPC (7). One end of the display FPC (6) is bonded at the second plane (5), and one end of the backlight FPC (7) is bonded and connected to the bottom end of the backlight module (3). The other ends of the display FPC (6) and the backlight FPC (7) are both located outside the backlight rubber frame (1); An upper iron frame (8) and a double-sided adhesive (9). A through hole (10) is formed in the upper iron frame (8) and a crimping surface (11) is formed. The upper iron frame (8) is buckled and fixed with the backlight rubber frame (1), and the double-sided adhesive (9) is located between the crimping surface (11) and the first plane (4); A sponge (12). A cavity is formed between the second plane (5) and the crimping surface (11), and the sponge (12) is located inside the cavity.

2. The dust-proof optimization structure of the module according to claim 1, characterized in that A single-sided adhesive (14) is fixedly connected to the left side of the sponge (12), and the sponge (12) is fixedly connected to the crimping surface (11) through the single-sided adhesive (14).

3. The dust-proof optimization structure of the module according to claim 2, wherein, The thickness of the sponge (12) is 0.60 mm, and the thickness of the compressed sponge is 0.25 - 0.3 mm.

4. The dust-proof optimization structure of the module according to claim 3, characterized in that, The sponge (12) has a T-shaped structure, and avoidance grooves (15) for avoiding the upper iron frame (8) are provided on both the left and right sides of the sponge (12).

5. The dust-proof optimization structure of the module according to claim 4, wherein, The display screen (2) includes a polarizer (201), an upper glass substrate (202), a lower glass substrate (203) and a lower polarizer (204) connected in sequence. The second plane (5) is formed by the lower glass substrate (203) extending out of the bottom end of the upper glass substrate (202).

6. The dust-proof optimization structure of the module according to claim 1, wherein, It further includes a cover plate (13), and the cover plate (13) is installed on the left side of the upper iron frame (8).

7. The dust-proof optimization structure of the module according to claim 1, characterized in that, A gap (16) is left between the sponge (12) and the double-sided adhesive (9), and the width of the gap (16) is 0.5 mm.

8. The dust-proof optimization structure of the module according to claim 7, characterized in that The thickness of the double-sided adhesive (9) is 0.05 - 0.1 mm.

9. The dust-proof optimization structure of the module according to claim 8, wherein, The other end of the backlight FPC (7) is bonded to the display FPC (6), and the display FPC (6) is fixedly connected to the right side of the backlight rubber frame (1) through a double-sided adhesive (17).

10. The dust-proof optimization structure of the module according to claim 9, wherein, Both the backlight FPC (7) and the display FPC (6) are a kind of highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the base material.

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