Novel liquid crystal module ESD (Electro-Static Discharge) prevention device

Abstract

The utility model discloses a novel liquid crystal module ESD (Electro-Static Discharge) prevention device which comprises a PCB (Printed Circuit Board), the top of the PCB is fixedly connected with a conductive aluminum film, the top of the conductive aluminum film is fixedly connected with an LCD (Liquid Crystal Display) layer, the top of the LCD layer is provided with ITO (Indium Tin Oxide) glass, the top of the LCD layer is provided with an iron frame, and the ITO glass is positioned on the inner side of the iron frame and is in close contact with the iron frame. The four corners of the iron frame are fixedly connected with grounding pins, the two sides of the iron frame are fixedly connected with protective battens, the protective battens are used in cooperation with the iron frame, rubber molecular layers are arranged in the protective battens, and the rubber molecular layers are used in cooperation with the protective battens. The anti-ESD device provided by the utility model changes the phenomena that the traditional shielding effect is not ideal enough, the cost is higher and the comprehensive protection is difficult to realize, and adopts the conductive aluminum film and the ITO glass to carry out shielding strengthening treatment, so that the phenomena that the shielding effect is not ideal enough, the cost is higher and the comprehensive protection is difficult to realize are avoided.

Description

Technical Field

[0001] This utility model relates to the field of LCD module protection technology, specifically a novel LCD module ESD protection device. Background Technology

[0002] ESD (Electrostatic Discharge) is a common potential hazard in the production, transportation, and use of LCD modules. High voltage and high current ESD can directly break down sensitive components in the LCD module, such as driver ICs, capacitors, and resistors, leading to permanent damage. Even without direct component damage, ESD can cause performance degradation issues such as deteriorated display quality, prolonged response time, and color distortion. In addition, ESD can damage insulating and conductive materials, accelerating aging and shortening the lifespan of the LCD module. Specifically, ESD may cause bright spots, dark spots, or color spots on the LCD panel, interfere with signal transmission causing screen flickering or instability, affect the normal operation of touch functions, damage driver ICs causing the LCD module to malfunction or display abnormalities, and interfere with the power management system, causing voltage instability or overcurrent protection activation.

[0003] However, existing ESD protection devices involve spraying a conductive shielding layer inside the equipment casing and adding TVS-ESD devices at the electrostatic contact points. However, this method has certain limitations, resulting in less than ideal shielding effect, higher cost, and difficulty in achieving comprehensive protection.

[0004] Therefore, it is necessary to design and modify anti-ESD devices to effectively prevent the phenomena of insufficient shielding effect, high cost and difficulty in achieving comprehensive protection. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a novel ESD protection device for liquid crystal modules, which has the advantages of good shielding effect, low cost and easy implementation of comprehensive protection, and solves the problems of insufficient shielding effect, high cost and difficulty in achieving comprehensive protection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel ESD protection device for an LCD module, comprising a PCB board, a conductive aluminum film fixedly connected to the top of the PCB board, an LCD layer fixedly connected to the top of the conductive aluminum film, an ITO glass disposed on the top of the LCD layer, an iron frame disposed on the top of the LCD layer, the ITO glass being located inside the iron frame and in close contact therewith, and grounding feet fixedly connected to the four corners of the iron frame.

[0007] As a preferred embodiment of this utility model, protective strips are fixedly connected to both sides of the iron frame, and the protective strips are used in conjunction with the iron frame.

[0008] As a preferred embodiment of this invention, the protective strip has a rubber molecular layer inside, which is used in conjunction with the protective strip.

[0009] As a preferred embodiment of this invention, a modified plastic layer is provided on the inner side of the rubber molecular layer, and the modified plastic layer is used in conjunction with the rubber molecular layer.

[0010] As a preferred embodiment of this invention, a ceramic powder layer is provided on the inner side of the modified plastic layer, and the ceramic powder layer is used in conjunction with the modified plastic layer.

[0011] As a preferred embodiment of this invention, an ethylene-vinyl acetate copolymer is disposed on the inner side of the ceramic powder layer, and the ethylene-vinyl acetate copolymer is used in conjunction with the ceramic powder layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model of ESD protection device changes the phenomenon that traditional shielding is not ideal, cost is high and it is difficult to achieve comprehensive protection. It adopts conductive aluminum film and ITO glass for shielding enhancement treatment, so it will not lead to the phenomenon of not ideal shielding effect, high cost and difficulty in achieving comprehensive protection.

[0014] 2. By setting up protective strips, this utility model can make the iron frame more stable and avoid damage and breakage.

[0015] 3. This utility model, through the setting of the rubber molecular layer, can deform when subjected to external force, thereby absorbing and dispersing vibration energy, reducing the coefficient of friction, thereby reducing wear, and also preventing the flow of current.

[0016] 4. By setting a modified plastic layer, this utility model can have better insulation performance, preventing current from passing through the human body or other conductive objects, thereby avoiding electric shock accidents.

[0017] 5. By setting a ceramic powder layer, this utility model can significantly improve the hardness and wear resistance of the material, and also has good insulation properties.

[0018] 6. This utility model, through the setting of ethylene-vinyl acetate copolymer, can have good heat insulation and moisture-proof performance, as well as good cushioning and shock resistance performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is an exploded view of the structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the protective strip of this utility model.

[0022] In the diagram: 1. PCB board; 2. Conductive aluminum film; 3. LCD layer; 4. ITO glass; 5. Iron frame; 6. Grounding foot; 7. Protective strip; 8. Rubber molecular layer; 9. Modified plastic layer; 10. Ceramic powder layer; 11. Ethylene-vinyl acetate copolymer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 3 As shown, the present invention provides a novel anti-ESD device for an LCD module, comprising a PCB board 1, a conductive aluminum film 2 fixedly connected to the top of the PCB board 1, an LCD layer 3 fixedly connected to the top of the conductive aluminum film 2, an ITO glass 4 disposed on the top of the LCD layer 3, an iron frame 5 disposed on the top of the LCD layer 3, the ITO glass 4 being located inside the iron frame 5 and in close contact therewith, and grounding feet 6 fixedly connected to the four corners of the iron frame 5.

[0025] refer to Figure 1 Protective strips 7 are fixedly connected to both sides of the iron frame 5. The protective strips 7 are used in conjunction with the iron frame 5.

[0026] As a technical optimization of this utility model, the setting of the protective strip 7 can make the iron frame 5 more stable and avoid damage and breakage.

[0027] refer to Figure 3 The protective strip 7 has a rubber molecular layer 8 inside, which is used in conjunction with the protective strip 7.

[0028] As a technical optimization of this utility model, the rubber molecular layer 8 can deform when subjected to external force, thereby absorbing and dispersing vibration energy, reducing the coefficient of friction, thereby reducing wear, and preventing the flow of current.

[0029] refer to Figure 3 A modified plastic layer 9 is provided on the inner side of the rubber molecular layer 8, and the modified plastic layer 9 is used in conjunction with the rubber molecular layer 8.

[0030] As a technical optimization of this utility model, the modified plastic layer 9 can have better insulation performance, preventing current from passing through the human body or other conductive objects, thereby avoiding electric shock accidents.

[0031] refer to Figure 3 A ceramic powder layer 10 is provided on the inner side of the modified plastic layer 9, and the ceramic powder layer 10 is used in conjunction with the modified plastic layer 9.

[0032] As a technical optimization of this utility model, the ceramic powder layer 10 can significantly improve the hardness and wear resistance of the material, and also has good insulation properties.

[0033] refer to Figure 3 The inner side of the ceramic powder layer 10 is provided with an ethylene-vinyl acetate copolymer 11, which is used in conjunction with the ceramic powder layer 10.

[0034] As a technical optimization of this utility model, the ethylene-vinyl acetate copolymer 11 provides good heat insulation and moisture-proof performance, as well as good cushioning and shock-resistant performance.

[0035] The working principle and usage process of this utility model are as follows: First, clean the upper surface of the LCD layer 3 and the inner side of the iron frame 5 to ensure there is no dust or impurities. Then, place the ITO glass 4 on the upper surface of the LCD layer 3 with its ITO side facing upwards. Apply a layer of conductive adhesive between the ITO glass 4 and the iron frame 5 to ensure tight contact. Fix the iron frame 5 to the LCD layer 3 and install grounding feet 6 at the four corners of the iron frame 5. The current is introduced to the ground through the grounding feet 6 to ensure that the entire structure has a good grounding effect. Then, attach the conductive aluminum film 2 to the LCD layer 3 and the PCB. Between boards 1, ensure tight contact between the two. Use soldering or conductive adhesive to fix the conductive aluminum film 2 to the PCB board 1. Then assemble the LCD layer 3, ITO glass 4, and iron frame 5 together to form a closed shielding cavity. Then fix the entire structure to the PCB board 1. Then connect the power supply and signal lines to ensure that the LCD module works normally. Perform overall testing, including ESD testing, display effect testing, and heat dissipation performance testing, to ensure that the ESD protection performance of the LCD module meets the expected standards, thus achieving a good shielding effect, low cost, and easy implementation of comprehensive protection.

[0036] In summary, this new type of LCD module ESD protection device overcomes the shortcomings of traditional shielding methods, which suffer from insufficient shielding effectiveness, high cost, and difficulty in achieving comprehensive protection. By employing conductive aluminum film 2 and ITO glass 4 for enhanced shielding, it avoids the problems of insufficient shielding effectiveness, high cost, and difficulty in achieving comprehensive protection.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new type of liquid crystal module ESD device, comprising a PCB board (1), characterized in that: The top of the PCB board (1) is fixedly connected with a conductive aluminum film (2), the top of the conductive aluminum film (2) is fixedly connected with an LCD layer (3), the top of the LCD layer (3) is provided with an ITO glass (4), the top of the LCD layer (3) is provided with an iron frame (5), the ITO glass (4) is located on the inner side of the iron frame (5) and is in close contact with the iron frame (5), and the four corners of the iron frame (5) are fixedly connected with grounding feet (6).

2. The novel liquid crystal module ESD protection device according to claim 1, characterized in that: The two sides of the iron frame (5) are fixedly connected with protective strip plates (7), and the protective strip plates (7) are used in cooperation with the iron frame (5).

3. The novel liquid crystal module ESD protection device of claim 2, wherein: The inside of the protective strip plate (7) is provided with a rubber molecule layer (8), and the rubber molecule layer (8) is used in cooperation with the protective strip plate (7).

4. The novel liquid crystal module ESD protection device of claim 3, wherein: The inner side of the rubber molecule layer (8) is provided with a modified plastic layer (9), and the modified plastic layer (9) is used in cooperation with the rubber molecule layer (8).

5. The novel liquid crystal module ESD protection device of claim 4, wherein: The inner side of the modified plastic layer (9) is provided with a ceramic powder layer (10), and the ceramic powder layer (10) is used in cooperation with the modified plastic layer (9).

6. The novel liquid crystal module ESD protection device according to claim 5, wherein: The inner side of the ceramic powder layer (10) is provided with an ethylene-vinyl acetate copolymer (11), and the ethylene-vinyl acetate copolymer (11) is used in cooperation with the ceramic powder layer (10).

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