Display module with electrostatic discharge structure

Abstract

The embodiment of the utility model belongs to the technical field of display modules. The utility model further relates to a display module with the electrostatic discharge structure, the display module comprises a cover plate main body and a backlight frame, the electrostatic discharge structure is arranged between the cover plate main body and the backlight frame, and the electrostatic discharge structure is used for transmitting static electricity on the cover plate main body to the backlight frame so as to realize static electricity discharge. According to the invention, the electrostatic discharge structure is arranged and is used for transmitting the static electricity on the cover plate main body to the backlight frame, so that the electrostatic discharge is realized, the interference of the static electricity is effectively reduced, and the stability and reliability of a display function are ensured; the problem of abnormal display function caused by static accumulation is avoided, and the overall stability and reliability of the vehicle-mounted display system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, and more specifically, to a display module with an electrostatic discharge structure. Background Art

[0002] With the rapid development of automotive electronic technology, in-vehicle display systems have become an indispensable part of modern vehicles. Among them, TFT (Thin Film Transistor) display screens play a crucial role in in-vehicle entertainment, navigation, information display, etc. due to their excellent image quality, high color saturation, and fast response capabilities. However, in the complex and ever-changing electromagnetic environment of vehicles, TFT display screens face many challenges, one of which is the problem of electrostatic interference. Electrostatic is a phenomenon that commonly exists in nature and electronic devices. When two objects come into contact and then separate, or due to friction, induction, etc., charge accumulation will occur on the surface of the objects, forming static electricity. In the in-vehicle environment, due to the vibrations, friction during vehicle driving, and contact with passengers, the generation and accumulation of static electricity are particularly common. When these static charges accumulate to a certain extent, they may interfere with nearby electronic devices, especially for highly sensitive display devices like TFT.

[0003] For in-vehicle TFT display modules, electrostatic interference may come from multiple aspects, but one of the main sources is the cover plate that is closely attached to it. As a key component for protecting the TFT display screen and enhancing the user experience, the material and design of the cover plate often have an important impact on the conduction and release of static electricity. Traditional cover plate materials, such as glass or plastic, although having excellent light transmittance and mechanical strength, have deficiencies in conductivity and are difficult to effectively release the accumulated static electricity. Therefore, we make improvements in this regard and propose a display module with an electrostatic discharge structure. Summary of the Utility Model

[0004] The technical problem to be solved in the embodiments of the utility model is that the traditional cover plate has deficiencies in conductivity and is difficult to effectively release the accumulated static electricity.

[0005] To solve the above technical problem, the utility model adopts the following technical solutions:

[0006] A display module with an electrostatic discharge structure includes: a cover plate main body and a backlight frame. An electrostatic discharge structure is arranged between the cover plate main body and the backlight frame, and the electrostatic discharge structure is used to transfer the static electricity on the cover plate main body to the backlight frame to achieve the release of static electricity.

[0007] As an improved mode of the utility model, the electrostatic discharge structure includes a conductive ink layer, and the conductive ink layer is arranged on the surface of the cover plate main body close to the backlight frame.

[0008] As an improvement of the present utility model, the static electricity release structure further includes a conductive double-sided adhesive layer, and the conductive double-sided adhesive layer is pasted between the conductive ink layer and the backlight frame.

[0009] As an improvement of the present utility model, the conductive ink layer and the conductive double-sided adhesive layer cooperate to realize the connection between the cover plate main body and the backlight frame, so as to realize the release of static electricity on the cover plate main body to the backlight frame.

[0010] As an improvement of the present utility model, the cover plate main body has a visible area and a non-visible area, and the conductive ink layer is arranged at the non-visible area.

[0011] As an improvement of the present utility model, the conductive ink layer is formed by screen printing.

[0012] As an improvement of the present utility model, a TFT module is further arranged between the backlight frame and the cover plate main body.

[0013] As an improvement of the present utility model, an avoidance opening is arranged on the conductive double-sided adhesive layer, and the avoidance opening is used to avoid the FPC of the TFT module.

[0014] As an improvement of the present utility model, at least one grounding connection point is arranged on the backlight frame, and is used to lead the static electricity accumulated on the backlight frame to the grounding system of the vehicle-mounted system.

[0015] As an improvement of the present utility model, a protective coating is arranged on the surface of the cover plate main body away from the backlight frame.

[0016] Compared with the prior art, the embodiments of the present utility model mainly have the following beneficial effects:

[0017] To solve the problem that in the prior art, there are deficiencies in the conductivity of the cover plate and it is difficult to effectively release the accumulated static electricity, the present application provides a static electricity release structure, which is used to transfer the static electricity on the cover plate main body to the backlight frame to realize the release of static electricity, effectively reduce the interference of static electricity, and ensure the stability and reliability of the display function; avoid the problem of abnormal display function caused by static electricity accumulation, and improve the overall stability and reliability of the vehicle-mounted display system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a display module with a static electricity release structure provided by the present application;

[0019] Figure 2 It is a schematic structural diagram of the cover plate main body and the conductive ink layer of the display module with a static electricity release structure provided by the present application;

[0020] Figure 3Schematic structural diagram of the avoidance opening of the display module with an electrostatic discharge structure provided by this application;

[0021] Figure 4 Schematic structural diagram of the conductive double-sided adhesive layer and the backlight frame of the display module with an electrostatic discharge structure provided by this application.

[0022] Reference signs in the figure:

[0023] 1. Cover plate main body; 2. Conductive ink layer; 3. Conductive double-sided adhesive layer; 301. Avoidance opening; 4. Backlight frame; 5. TFT module. Detailed implementation manners

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art belonging to the technical field of this utility model; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The mention of "embodiment" herein means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of this utility model. The phrase appears at various positions in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0025] As recorded in the background art, for in-vehicle TFT display modules, electrostatic interference may come from multiple aspects, but one of the main sources is the cover plate that is closely attached to it. As a key component for protecting the TFT display screen and improving the user experience, its material and design often have an important impact on the conduction and release of static electricity; traditional cover plate materials, such as glass or plastic, although having excellent light transmittance and mechanical strength, have deficiencies in electrical conductivity and are difficult to effectively release the accumulated static electricity.

[0026] To solve this technical problem, this utility model provides a display module with an electrostatic discharge structure.

[0027] Specifically, please refer to Figures 1 - 4 , the display module with an electrostatic discharge structure specifically includes:

[0028] A cover plate main body 1 and a backlight frame 4, and an electrostatic discharge structure is provided between the cover plate main body 1 and the backlight frame 4. The electrostatic discharge structure is used to transfer the static electricity on the cover plate main body 1 to the backlight frame 4 to achieve the release of static electricity.

[0029] The display module with an electrostatic discharge structure provided by the present utility model. Through the provided electrostatic discharge structure, the electrostatic discharge structure is used to transfer the static electricity on the cover plate main body 1 to the backlight frame 4 to achieve the release of static electricity, effectively reducing the interference of static electricity and ensuring the stability and reliability of the display function; it avoids the problem of abnormal display function caused by static electricity accumulation, and improves the overall stability and reliability of the vehicle-mounted display system.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] Embodiment 1 of the display module with an electrostatic discharge structure of the present utility model

[0034] Please refer to Figures 1 - 4 , the display module with an electrostatic discharge structure of the present utility model includes: a cover plate main body 1 and a backlight frame 4. An electrostatic discharge structure is provided between the cover plate main body 1 and the backlight frame 4. The electrostatic discharge structure is used to transfer the static electricity on the cover plate main body 1 to the backlight frame 4 to achieve the release of static electricity. Through the provided electrostatic discharge structure, the electrostatic discharge structure is used to transfer the static electricity on the cover plate main body 1 to the backlight frame 4 to achieve the release of static electricity, effectively reducing the interference of static electricity and ensuring the stability and reliability of the display function; it avoids the problem of abnormal display function caused by static electricity accumulation, and improves the overall stability and reliability of the vehicle-mounted display system;

[0035] The backlight frame 4 is made of aluminum material, which has good electrical conductivity and thermal conductivity, improves the heat dissipation efficiency of the system and extends the service life. The excellent electrical conductivity and thermal conductivity of the aluminum material can not only quickly conduct out the static electricity, but also efficiently dissipate the heat generated during the operation of the display module. This helps to maintain the temperature inside the display module within a suitable range, avoiding the adverse effects of high temperature on the performance and life of electronic components. The improvement of the heat dissipation efficiency can also reduce the component aging and failures caused by overheating, further extending the service life of the display module. At the same time, the good heat dissipation performance also provides a guarantee for the long-term stable operation of the display module, enabling it to still maintain good performance under high-load working conditions.

[0036] Further, as Figure 2As shown, the electrostatic release structure includes a conductive ink layer 2, which is arranged on a surface of the cover body 1 close to the backlight frame 4. The ingenious setting of the conductive ink layer 2 constructs an efficient and stable channel for the transmission of static electricity, which can evenly distribute and conduct static electricity, avoiding the accumulation and concentrated release of static electricity in local areas, thereby effectively reducing the potential harm of electrostatic discharge to the display module. In addition, the presence of the conductive ink layer 2 can also improve the speed and efficiency of electrostatic release, ensuring that the static electricity on the cover body 1 can be quickly transferred to the backlight frame 4, further enhancing the electrostatic protection capability of the display module.

[0037] Further, such as Figure 1 and Figure 3 As shown, the electrostatic release structure also includes a conductive double-sided adhesive layer 3, which is pasted between the conductive ink layer 2 and the backlight frame 4. The conductive double-sided adhesive layer 3 adopts a conductive double-sided adhesive. By adding a conductive agent to the glue, the glue has conductivity, which can provide effective connection and conduct current between electronic components. The conductive double-sided adhesive is an existing structure. The introduction of the conductive double-sided adhesive layer 3 ensures that the layers are tightly fitted while achieving stable and continuous current conduction, which not only enhances the reliability of electrostatic transmission, but also can effectively buffer the mechanical stress and vibration that may be generated between the layers, and protect the internal components from physical damage. In addition, the use of the conductive double-sided adhesive 3 also improves the overall structural stability of the display module, enabling it to withstand a certain degree of external shock and vibration, thereby adapting to more complex and harsh working environments.

[0038] Furthermore, the conductive ink layer 2 and the conductive double-sided adhesive layer 3 are used together to achieve the connection between the cover body 1 and the backlight frame 4, so as to release the static electricity on the cover body 1 to the backlight frame 4. This coordinated cooperation method constructs a complete and efficient static electricity release system, which can ensure that the static electricity is transferred from the cover body 1 to the backlight frame 4 in the shortest time and finally released safely. This efficient static electricity release mechanism greatly reduces the potential threat of static electricity to the internal circuits and components of the display module, and improves the anti-static interference ability of the display module. At the same time, this tightly matched connection method can also enhance the overall structural strength of the display module, improve its anti-seismic and impact resistance, and further ensure the stable operation of the display module under various complex working conditions.

[0039] Embodiment 2 of the display module with electrostatic discharge structure of the utility model

[0040] The display module with electrostatic discharge structure of the utility model is further characterized as follows: Figure 2As shown, the cover plate body 1 has a visible area and a non-visible area. The conductive ink layer 2 is disposed in the non-visible area, such that the setting of the conductive ink layer 2 does not affect the normal use of the cover plate body 1. The conductive ink layer 2 is accurately set in the non-visible area, achieving a perfect balance between the electrostatic discharge function and the user's visual experience.

[0041] Furthermore, the conductive ink layer 2 is formed by screen printing. The conductive ink layer 2 uses conductive ink, and the main components of the conductive ink include conductive particles and base ink. The conductive particles are usually metal or carbon-based materials, such as silver powder, copper powder, aluminum powder, and carbon black, etc. These conductive particles can form a conductive path under the action of an electric field. The base ink is a carrier that evenly disperses the conductive particles in the ink and forms a uniform conductive layer during the printing or coating process. The conductive ink is screen-printed on the surface of the cover plate body 1 to enable the cover plate body 1 to achieve the conductive function.

[0042] Furthermore, as Figure 1 shown, a TFT module 5 is also disposed between the backlight frame 4 and the cover plate body 1. The introduction of the TFT module 5 significantly improves the image quality and display performance of the display module. It can achieve high-resolution, high-contrast, and fast-response image display, bringing a clearer, more vivid, and smoother visual enjoyment to the user.

[0043] Furthermore, as Figure 3 shown, an avoidance opening 301 is provided on the conductive double-sided adhesive layer 3. The avoidance opening 301 is used to avoid the FPC of the TFT module 5. By providing the avoidance opening 301, the physical contact and electrical interference between the conductive double-sided adhesive layer 3 and the FPC of the TFT module 5 are effectively avoided. This ensures that the FPC can transmit signals normally without being affected by the conductive double-sided adhesive 3, thereby ensuring the signal integrity and stability of the display module.

[0044] Furthermore, at least one grounding connection point is provided on the backlight frame 4 for leading the static electricity accumulated on the backlight frame 4 to the grounding system of the vehicle-mounted system to ensure the complete dissipation of the static electricity. The grounding connection point is made of a material with excellent corrosion resistance and electrical conductivity, such as gold-plated or silver-plated copper, to improve the reliability and durability of the grounding connection. The setting of the grounding connection point provides a reliable dissipation path for the static electricity, ensuring that the static electricity can be completely and quickly led to the grounding system of the vehicle-mounted system, thereby maximizing the elimination of the potential hazards of static electricity to the display module. Using a material with excellent corrosion resistance and electrical conductivity to make the grounding connection point can maintain good electrical conductivity for a long time and avoid grounding failure caused by corrosion or oxidation. This not only improves the static electricity protection ability of the display module but also enhances its reliability and stability in harsh environments; a reliable grounding connection is a key measure to eliminate the hazards of static electricity, and the selection of high-quality materials can ensure the long-term effectiveness and stability of the grounding connection.

[0045] Embodiment Three of the Display Module with Electrostatic Discharge Structure of the Present Utility Model

[0046] Furthermore, on the side of the cover plate body 1 away from the backlight frame 4, a protective coating is provided, and the protective coating is one or more of an AF coating, an AR coating, and an AG coating;

[0047] The AF coating is an anti-fingerprint coating. The AF coating is mainly used to prevent the residue of fingerprints and oil stains, making the surface easier to clean. This coating well solves the problem that materials such as glass, ceramics, and metals are prone to fingerprint residue; the AF coating is a fluorine-containing coating with extremely low surface tension, usually called perfluoropolyether. It can adhere to the material surface and increase the hydrophobic, oil-repellent, anti-fouling and other properties of the material; AF materials are mainly divided into two forms: liquid medicine and target pellets, which are respectively suitable for two coating methods: spraying and vacuum evaporation; the single-piece cost of spraying is not higher than 0.6 yuan, while the single-piece cost of vacuum evaporation is not higher than 2 yuan. This coating is widely used on the protective glass of products such as mobile phones, tablets, and displays;

[0048] The AR coating is an anti-reflection coating. The AR coating is a dielectric thin film coating applied to the optical surface, aiming to reduce the reflectance of light generated by Fresnel reflection on the surface within a specific wavelength range, and improve the light transmittance and image clarity; this coating is mainly applied to optical devices such as glasses, camera objectives, optical windows, displays, and photovoltaic cells;

[0049] The AG coating is an anti-glare coating. The AG coating is mainly used to reduce the specular reflection of glass or plastic film, and has excellent anti-glare effect, which helps to reduce eye discomfort and visual fatigue. The AG anti-glare coating is mainly a UV coating with special silicone resin as the main body. It can be attached to the product surface through processes such as nano-dipping or spraying, is harmless to the human body, and the manufacturing process is environmentally friendly; the AG coating is mainly applied to various panels, such as liquid crystal screens, televisions, automotive TV eye protection films, automotive instrument panels, and camera lenses, etc., to improve visual comfort.

[0050] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all embodiments. 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 made by using the content of the specification and drawings of the present utility model, directly or indirectly applied in other related technical fields, are similarly within the scope of the patent protection of the present utility model.

Claims

1. A display module with an electrostatic release structure, characterized in that: include: A cover plate body (1) and a backlight frame (4), wherein an electrostatic release structure is provided between the cover plate body (1) and the backlight frame (4), and the electrostatic release structure is used to transfer static electricity on the cover plate body (1) to the backlight frame (4) to achieve static electricity release.

2. The display module with an electrostatic release structure according to claim 1, characterized in that: The electrostatic discharge structure comprises a conductive ink layer (2), and the conductive ink layer (2) is arranged on a surface of the cover plate body (1) close to the backlight frame (4).

3. The display module with an electrostatic release structure according to claim 2, characterized in that: The electrostatic discharge structure further comprises a conductive double-sided adhesive layer (3), wherein the conductive double-sided adhesive layer (3) is adhered between the conductive ink layer (2) and the backlight frame (4).

4. The display module with an electrostatic release structure according to claim 3, characterized in that: The conductive ink layer (2) and the conductive double-sided adhesive layer (3) are used together to realize the connection between the cover plate body (1) and the backlight frame (4), so as to release static electricity on the cover plate body (1) to the backlight frame (4).

5. The display module with an electrostatic release structure according to claim 2, characterized in that: The cover plate body (1) has a visible area and a non-visible area, and the conductive ink layer (2) is arranged in the non-visible area.

6. The display module with an electrostatic release structure according to claim 2, characterized in that: The conductive ink layer (2) is provided by silk screen printing.

7. The display module with an electrostatic release structure according to claim 4, characterized in that: A TFT module (5) is also provided between the backlight frame (4) and the cover plate body (1).

8. The display module with an electrostatic release structure according to claim 3, characterized in that: The conductive double-sided adhesive layer (3) is provided with an avoidance opening (301), and the avoidance opening (301) is used to avoid the FPC of the TFT module (5).

9. The display module with an electrostatic release structure according to claim 1, characterized in that: At least one ground connection point is provided on the backlight frame (4) and is used to conduct static electricity accumulated on the backlight frame (4) to a ground system of the vehicle-mounted system.

10. The display module with an electrostatic release structure according to claim 1, characterized in that: A protective coating is provided on a side of the cover plate body (1) away from the backlight frame (4).

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