A touch LCD array substrate and a corresponding touch LCD display

By using structural designs such as reinforced polycarbonate substrates and flexible protective films, the problems of fragile and easily damaged LCD array substrates and unstable multi-screen connections have been solved, achieving higher durability and stability and expanding the application range.

CN118655721BActive Publication Date: 2025-11-14SHENZHEN HUAYANG DISPLAY CO LTD
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Patent Information

Application Number
CN202410774434.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-17
Publication Date
2025-11-14
Estimated Expiration
2044-06-17

AI Technical Summary

Technical Problem

Existing LCD array substrates are fragile, lack flexibility and bendability, and lack structural connections between multiple displays, resulting in poor product stability.

Method used

The substrate is made of reinforced polycarbonate material, combined with a flexible protective film, an impact-resistant protective layer, reinforced support columns and a buffer pad layer to enhance the durability and flexibility of the substrate; the design of connecting tenons and mortises, slots and inserts enables a firm connection of multiple displays.

Benefits of technology

It improves the durability and flexibility of the substrate, enhances the stability and reliability of the display screen, reduces the impact of external shocks and vibrations on the display screen, and expands the application fields.

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Abstract

This invention discloses a touch LCD array substrate and a corresponding touch LCD display, belonging to the field of LCD display technology. It addresses the problems of existing LCD array substrates being fragile, easily damaged, having poor flexibility, and lacking structural connections between multiple displays. The invention includes a substrate and employs a combination of a flexible protective film, an impact-resistant protective layer, reinforced support pillars, and a buffer pad layer. The impact-resistant protective layer absorbs and disperses external impacts, reducing direct impact on the substrate and thus lowering the risk of breakage. Simultaneously, these protective layers or support structures provide additional flexibility and bendability, protecting the substrate surface from environmental damage and ensuring that circuits and components are not damaged during bending or deformation. The fillers and pads provide additional support and cushioning, reducing stress and pressure on the substrate during bending or deformation, thereby improving product reliability and stability.
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Description

Technical Field

[0001] This invention belongs to the field of liquid crystal display technology, specifically relating to a touch liquid crystal display array substrate and a corresponding touch liquid crystal display. Background Technology

[0002] Liquid crystal displays (LCDs) are a common flat-panel display technology widely used in computer monitors, televisions, mobile phones, tablets, and other electronic devices. They utilize the optical properties of liquid crystal materials, controlling the alignment of liquid crystal molecules through an electric field to regulate light transmission and display images or text. The display array substrate is a key component of an LCD, driving each pixel to generate an image. It's a circuit board-like substrate with numerous thin-film transistors (TFTs) arranged on it, each corresponding to a pixel on the LCD. In an LCD, the brightness and color of each pixel are controlled by the alignment of liquid crystal molecules. This alignment is regulated by the flow of TFT current, which is controlled by circuitry on the display array substrate. The manufacturing process of the display array substrate is highly complex, typically involving multilayer thin-film deposition, photolithography, etching, cleaning, and heat treatment. Each pixel's TFT is formed through these processes, requiring precision and stability to ensure the overall quality and performance of the display. The LCD and the array substrate work closely together, forming the core of the LCD and enabling image display.

[0003] However, existing liquid crystal display array substrates and liquid crystal displays have the following shortcomings during use:

[0004] 1. Traditional glass substrates are relatively fragile and easily broken. They are susceptible to damage from external impacts and pressures, which increases product maintenance costs and user operating costs, and may affect product reliability and stability.

[0005] 2. Traditional liquid crystal display array substrates typically lack flexibility and bendability, which limits their application in flexible and bendable displays. As consumer demand for innovative display technologies increases, existing liquid crystal display array substrates are unable to meet these needs.

[0006] 3. Most existing LCD screens are directly spliced ​​together, with no structural connection between multiple screens. The overall stability of the spliced ​​system is poor, and it is easily affected by external environmental factors, causing it to shake or tilt.

[0007] Therefore, there is a need for a touch LCD array substrate and a corresponding touch LCD display to solve the problems of fragile and easily damaged LCD array substrates, poor flexibility, and lack of structural connection between multiple displays in the existing technology. Summary of the Invention

[0008] The purpose of this invention is to provide a touch liquid crystal display array substrate and a corresponding touch liquid crystal display to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a touch liquid crystal display array substrate and a corresponding touch liquid crystal display, comprising a substrate, a flexible protective film fixedly connected to the bottom of the substrate, an impact-resistant protective layer fixedly connected to the bottom of the flexible protective film, a plurality of evenly distributed reinforcing support columns fixedly connected to the bottom of the impact-resistant protective layer, a buffer pad layer fixedly connected to the outside of the plurality of reinforcing support columns, an insulating layer fixedly connected to the top of the substrate, an electrostatic dispersion layer fixedly connected to the top of the insulating layer, a protective shielding layer fixedly connected to the top of the electrostatic dispersion layer, a metal shielding layer fixedly connected to the top of the protective shielding layer, and a color filter layer fixedly connected to the top of the metal shielding layer.

[0010] It should be noted in the solution that the substrate is made of reinforced polycarbonate material.

[0011] It is worth noting that the flexible protective film is made of polyimide, the impact-resistant protective layer is filled with silicone, and the buffer pad layer is made of foam plastic wrapped around the outer wall of the reinforced support column.

[0012] It should be further noted that the insulating layer is made of epoxy resin, and the electrostatic dispersion layer is made of indium tin oxide film.

[0013] In a preferred embodiment, the protective shielding layer is made of zinc oxide film, the metal shielding layer is made of aluminum, and the color filter layer is made of silicon-based inorganic pigments.

[0014] In a preferred embodiment, the touch LCD display includes a mounting frame, in which the LCD display is mounted. A connecting tenon is fixedly connected to one side of the mounting frame, and a connecting tenon corresponding to the connecting tenon is fixedly connected to the other side of the mounting frame. Two slots are provided at the top of the mounting frame, and two inserts corresponding to the slots are fixedly connected to the bottom of the mounting frame.

[0015] In a preferred embodiment, the liquid crystal display screen includes a display screen body, a waterproof layer fixedly connected to the front end of the display screen body, an anti-glare layer fixedly connected to the front end of the waterproof layer, an explosion-proof film layer fixedly connected to the front end of the anti-glare layer, a nano oleophobic layer fixedly connected to the front end of the explosion-proof film layer, and a wear-resistant layer fixedly connected to the front end of the nano oleophobic layer.

[0016] In a preferred embodiment, the waterproof layer is made of polytetrafluoroethylene, and the anti-glare layer contains a plurality of microlenses arranged in an array, wherein the microlenses are composed of arcs with a diameter of 80um-120um.

[0017] In a preferred embodiment, the nano-oleophobic layer is made of a siloxane-based material, and the wear-resistant layer is made of polycarbonate.

[0018] In a preferred embodiment, the inner wall of the connecting tenon groove is tightly fitted with the outer wall of the connecting tenon, and the inner wall of the slot is tightly fitted with the outer wall of the insert block.

[0019] Compared with the prior art, the touch liquid crystal display array substrate and corresponding touch liquid crystal display provided by the present invention have at least the following beneficial effects:

[0020] (1) By setting an impact-resistant protective layer, the impact-resistant protective layer can effectively increase the durability of the substrate and reduce the damage caused by accidental collision or object impact during daily use; at the same time, the substrate is made of reinforced polycarbonate material instead of traditional glass substrate. Reinforced plastic has high strength and toughness, can better resist external impact and pressure, and has the advantage of lightweight, improving the reliability and stability of the product.

[0021] (2) By setting a flexible protective film, a certain degree of flexibility and bending resistance can be provided, while protecting the substrate surface from damage by the external environment. By setting a reinforced support column and a buffer pad layer in combination, the support structure can provide the substrate with the required flexibility and bending, and ensure that the circuit and components will not be damaged during bending or deformation. The filler and pad can provide additional support and buffering, reduce the stress and pressure on the substrate during bending or deformation, and expand the application field of the array substrate.

[0022] (3) By setting the mortise and tenon to match, and the slot and insert to match, multiple LCD screens are firmly connected to each other, improving wind and pressure resistance, reducing vibration impact, thereby enhancing the stability of the entire display system. This facilitates the splicing and disassembly of LCD screens and increases the safety of the device. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the array substrate of the present invention;

[0024] Figure 2 This is a first-view structural diagram of the display screen of the present invention;

[0025] Figure 3 This is a second-view structural diagram of the display screen of the present invention;

[0026] Figure 4 This is a schematic diagram of the splicing structure of multiple displays of the present invention;

[0027] Figure 5 This is a partial structural exploded view of the display screen of the present invention.

[0028] In the diagram: 1. Substrate; 2. Flexible protective film; 3. Impact-resistant protective layer; 4. Reinforced support column; 5. Buffer pad layer; 6. Insulating layer; 7. Static dispersing layer; 8. Protective shielding layer; 9. Metal shielding layer; 10. Color filter layer; 11. Mounting frame; 12. LCD screen; 1201. Display screen body; 1202. Waterproof layer; 1203. Anti-glare layer; 1204. Explosion-proof film layer; 1205. Nano oleophobic layer; 1206. Wear-resistant layer; 13. Connecting tenon; 14. Connecting tenon; 15. Slot; 16. Insert block. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The present invention will be further described below with reference to embodiments.

[0031] Please see Figure 1-5 This invention provides a touch LCD array substrate and a corresponding touch LCD display, including a substrate 1. A flexible protective film 2 is fixedly connected to the bottom of the substrate 1. An impact-resistant protective layer 3 is fixedly connected to the bottom of the flexible protective film 2. A plurality of evenly distributed reinforcing support pillars 4 are fixedly connected to the bottom of the impact-resistant protective layer 3. A buffer pad layer 5 is fixedly connected to the outside of the plurality of reinforcing support pillars 4. An insulating layer 6 is fixedly connected to the top of the substrate 1. An electrostatic dispersion layer 7 is fixedly connected to the top of the insulating layer 6. A protective shielding layer 8 is fixedly connected to the top of the electrostatic dispersion layer 7. A metal shielding layer 9 is fixedly connected to the top of the protective shielding layer 8. A color filter layer 10 is fixedly connected to the top of the metal shielding layer 9.

[0032] Further as Figure 1As shown, it is worth noting that substrate 1 is made of reinforced polycarbonate material. Reinforced polycarbonate material has excellent strength and impact resistance, effectively resisting the impact and collision of external forces. This characteristic makes substrate 1 more durable in daily use and reduces the risk of damage caused by accidental collisions or vibrations. Compared with traditional materials such as glass, reinforced polycarbonate material has a lighter weight, which is beneficial for lightweight design. This is especially important for portable devices or displays that need to be installed on walls or ceilings, as it can reduce the load on the entire display system. At the same time, reinforced polycarbonate material has good light transmittance and optical quality, which can provide clear and accurate image display without causing optical distortion or affecting the display effect, ensuring that users get a high-quality visual experience. Compared with some other materials, reinforced polycarbonate material has strong resistance to chemical corrosion, and can resist the erosion of the substrate by common cleaning agents and chemicals, thereby extending the service life of substrate 1.

[0033] Further as Figure 1 As shown, it is worth noting that the flexible protective film 2 is made of polyimide. Polyimide has excellent mechanical properties, including high strength, wear resistance, and tensile strength, enabling the flexible protective film 2 to effectively protect the display substrate 1 and reduce the risk of tearing and wear. Simultaneously, polyimide has good resistance to many chemicals; it is not easily corroded by solvents, acids, alkalis, and other chemicals, thus protecting the display array substrate 1 from chemical corrosion. Furthermore, polyimide is flexible and malleable, making it easy to process into various shapes and sizes to meet different display design requirements. The impact-resistant protective layer 3 is filled with silicone. Silicone filling material has excellent cushioning and shock absorption properties, effectively absorbing external impact forces and reducing the impact on the display substrate 1, helping to mitigate the effects of accidental damage. The silicone filling protects against damage caused by external collisions or impacts and safeguards internal electronic components from external vibrations. Its flexibility allows it to adapt to irregularly shaped surfaces or structures, enabling it to better fit and protect each area when covering the entire display substrate 1, providing comprehensive protection for the display. The buffer layer 5, made of foam plastic, wraps around the outer wall of the reinforcing support column 4. The foam plastic has excellent cushioning properties, effectively absorbing external impacts and vibrations, thus protecting the display substrate 1 from damage caused by accidental collisions or vibrations. This helps extend the lifespan of the substrate 1 and maintain its normal operation. The foam plastic is lightweight and compressible, and compared to other materials such as metal or solid plastic, it provides the same or better cushioning effect while significantly reducing the overall weight of the display structure.

[0034] Further as Figure 1As shown, it is worth noting that the insulating layer 6 is made of epoxy resin. Epoxy resin has excellent insulation properties, which can effectively isolate electronic components and circuit boards, prevent short circuits between electrical components, and ensure the normal operation of the equipment. Epoxy resin remains stable at high temperatures, making it suitable for equipment that needs to withstand high-temperature environments, such as industrial equipment and high-performance electronic devices. At the same time, epoxy resin has high mechanical strength, which means it can provide certain support and protection for the substrate 1, reducing the impact of external impacts on the substrate during use. The electrostatic dispersion layer 7 is made of indium tin oxide film. Indium tin oxide film has extremely high light transmittance, so when it is covered on the display substrate 1, it will not significantly reduce the transparency and clarity of the display screen. This is an important factor in maintaining the clarity of the display effect. At the same time, indium tin oxide film has good electrical conductivity, which can effectively disperse static electricity, prevent static electricity accumulation, and reduce the impact of static electricity on the display effect, helping to protect the internal electronic components of the display screen from electrostatic interference.

[0035] Further as Figure 1 As shown, it is worth noting that the protective shielding layer 8 is made of zinc oxide film. Zinc oxide film has good light transmittance and transparency, so when applied as a protective shielding layer for substrate 1, it will not significantly affect the visual effect of the display screen, maintaining screen clarity and brightness. At the same time, zinc oxide film has excellent conductivity, so it can effectively disperse static electricity as a shielding layer, prevent static electricity accumulation, and reduce interference with the display effect. The metal shielding layer 9 is made of aluminum. Aluminum is a good conductive material, so as a metal shielding layer 9, it can effectively shield external electromagnetic interference, protect the electronic components and circuits inside the display screen from interference, and ensure normal operation. At the same time, aluminum is relatively inexpensive, so using aluminum metal shielding layer 9 in mass production helps to reduce the overall manufacturing cost. The color filter layer 10 is made of silicon-based inorganic pigments. The filter layer made of silicon-based inorganic pigments has bright colors and good color stability. Even after long-term use, it is not easy to fade, which helps to maintain the high color accuracy of the display screen. At the same time, silicon-based inorganic pigments have good high temperature resistance, so they are suitable for display screen production that requires high-temperature processes.

[0036] As can be seen from the above working process: by setting the impact-resistant protective layer 3, the impact-resistant protective layer 3 can effectively increase the durability of the substrate 1 and reduce the damage caused by accidental collisions or object impacts during daily use; at the same time, the substrate 1 is made of reinforced polycarbonate material, replacing the traditional glass substrate. The reinforced plastic has high strength and toughness, can better resist external impacts and pressures, and has the advantage of lightweight, improving the reliability and stability of the product; by setting the flexible protective film 2, a certain degree of flexibility and bending resistance can be provided, while protecting the surface of the substrate 1 from damage by the external environment; by setting the reinforced support column 4 and the buffer pad layer 5 together, the support structure can provide the required flexibility and bending of the substrate 1, and ensure that the circuit and components are not damaged during bending or deformation. The filler and pad can provide additional support and cushioning, reducing the stress and pressure on the substrate 1 during bending or deformation, and expanding the application field of the array substrate 1.

[0037] Further as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it is worth noting that the touch LCD screen includes a mounting frame 11, inside which an LCD screen 12 is installed. A connecting tenon 13 is fixedly connected to one side of the mounting frame 11, and a connecting tenon 14 corresponding to the connecting tenon 13 is fixedly connected to the other side of the mounting frame 11. Two slots 15 are opened at the top of the mounting frame 11, and two inserts 16 corresponding to the slots 15 are fixedly connected to the bottom of the mounting frame 11. By setting the connecting tenon 13 and the connecting tenon 14 to cooperate, and the slots 15 and the inserts 16 to cooperate, multiple LCD screens 12 are firmly connected to each other, improving wind and pressure resistance, reducing vibration impact, thereby enhancing the stability of the entire display system. This facilitates the splicing and disassembly of the LCD screens 12 and increases the safety of the device.

[0038] Further as Figure 5 As shown, it is worth noting that the LCD screen 12 includes a screen body 1201. A waterproof layer 1202 is fixedly connected to the front end of the screen body 1201. An anti-glare layer 1203 is fixedly connected to the front end of the waterproof layer 1202. An explosion-proof film layer 1204 is fixedly connected to the front end of the anti-glare layer 1203. A nano oleophobic layer 1205 is fixedly connected to the front end of the explosion-proof film layer 1204. A wear-resistant layer 1206 is fixedly connected to the front end of the nano oleophobic layer 1205. By setting the explosion-proof film layer 1204, the strength and pressure resistance of the screen are improved, and the service life of the device is extended. The anti-glare layer 1203 can effectively prevent glare from affecting the user's viewing of the screen and improve the user experience.

[0039] Further as Figure 5As shown, it is worth noting that the waterproof layer 1202 is made of polytetrafluoroethylene (PTFE). PTFE has excellent waterproof performance and can effectively prevent water from penetrating into the display screen, thereby protecting the electronic components and circuits of the display screen from water damage. The anti-glare layer 1203 contains several microlenses arranged in an array. The microlenses are composed of arcs with a diameter of 80um-120um. These small protrusions can change the refraction angle of light, making the light more uniform and preventing the formation of light spots or dark areas. This makes the light entering the human eye softer and achieves a good anti-glare effect.

[0040] Further as Figure 5 As shown, it is worth noting that the nano oleophobic layer 1205 is made of siloxane-based materials. Siloxane-based materials have excellent hydrophobic properties, which can effectively resist the adhesion of grease and dirt, thereby keeping the surface of the display clean. At the same time, the nano oleophobic layer formed by siloxane-based materials can effectively prevent fingerprints, oil stains and other dirt from remaining on the surface of the display, reducing the frequency of cleaning and maintaining screen clarity. The wear-resistant layer 1206 is made of polycarbonate material. Polycarbonate material has excellent wear resistance, which can effectively resist scratches and wear that may be caused by daily use, helping to maintain the appearance clarity and texture of the display. At the same time, the wear-resistant layer made of polycarbonate material can provide good transparency, allowing the display to maintain clarity and high light transmittance.

[0041] Further as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it is worth noting that the inner wall of the connecting tenon 13 fits tightly with the outer wall of the connecting tenon 14, and the inner wall of the slot 15 fits tightly with the outer wall of the insert 16, so that the multiple LCD screens 12 are firmly connected to each other, improving wind and pressure resistance, reducing vibration impact, thereby enhancing the stability of the entire display system. This facilitates the splicing and disassembly of the LCD screens 12 and increases the safety of the device.

[0042] The solution has the following working process: In actual use, when splicing in the horizontal direction, the connecting tenon 14 is aligned with the inner wall of the connecting tenon groove 13 and inserted; when splicing in the vertical direction, the insert block 16 is aligned with the inner wall of the slot 15 and inserted, so that multiple LCD screens 12 are installed as a whole for use.

[0043] In summary: By combining the flexible protective film 2, the impact-resistant protective layer 3, the reinforced support column 4, and the buffer pad layer 5, the impact-resistant protective layer 3 can absorb and disperse external impacts, reducing the direct impact on the substrate 1 and thus lowering the risk of breakage. Simultaneously, these protective layers or support structures provide additional flexibility and bendability, protecting the surface of the substrate 1 from damage by the external environment and ensuring that circuits and components are not damaged during bending or deformation. The fillers and pads provide additional support and cushioning, reducing the stress and pressure on the substrate 1 during bending or deformation, thus improving the reliability and stability of the product. By combining the connecting tenon 13 and connecting tenon 14, and the slot 15 and insert 16, multiple LCD screens 12 are securely connected to each other, improving wind and pressure resistance, reducing vibration impact, and thus enhancing the stability of the entire display system. This facilitates the splicing and disassembly of the LCD screens 12 and increases the safety of the device.

[0044] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A touch liquid crystal display array substrate, comprising a substrate (1), characterized in that: The substrate (1) is made of reinforced polycarbonate material. A flexible protective film (2) is fixedly connected to the bottom of the substrate (1). The flexible protective film (2) is made of polyimide material. An impact-resistant protective layer (3) is fixedly connected to the bottom of the flexible protective film (2). The impact-resistant protective layer (3) is filled with silicone. Multiple evenly distributed reinforcing support columns (4) are fixedly connected to the bottom of the impact-resistant protective layer (3). A buffer pad layer (5) is fixedly connected to the outside of the multiple reinforcing support columns (4). The buffer pad layer (5) is made of foam plastic material wrapped around the outer wall of the reinforcing support columns (4). The top of the substrate (1) An insulating layer (6) is fixedly connected to the top of the insulating layer (6), which is made of epoxy resin. An electrostatic dispersion layer (7) is fixedly connected to the top of the insulating layer (6), which is made of indium tin oxide film. A protective shielding layer (8) is fixedly connected to the top of the electrostatic dispersion layer (7), which is made of zinc oxide film. A metal shielding layer (9) is fixedly connected to the top of the protective shielding layer (8), which is made of aluminum. A color filter layer (10) is fixedly connected to the top of the metal shielding layer (9), which is made of silicon-based inorganic pigment.

2. A touch liquid crystal display screen, comprising a touch liquid crystal display screen array substrate as described in claim 1, characterized in that: The touch LCD screen includes a mounting frame (11), and an LCD screen (12) is installed inside the mounting frame (11). A connecting tenon (13) is fixedly connected to one side of the mounting frame (11), and a connecting tenon (14) corresponding to the connecting tenon (13) is fixedly connected to the other side of the mounting frame (11). Two slots (15) are opened at the top of the mounting frame (11), and two inserts (16) corresponding to the slots (15) are fixedly connected to the bottom of the mounting frame (11).

3. A touch LCD display screen according to claim 2, characterized in that: The liquid crystal display screen (12) includes a display screen body (1201), a waterproof layer (1202) is fixedly connected to the front end of the display screen body (1201), an anti-glare layer (1203) is fixedly connected to the front end of the waterproof layer (1202), an explosion-proof film layer (1204) is fixedly connected to the front end of the anti-glare layer (1203), a nano oleophobic layer (1205) is fixedly connected to the front end of the explosion-proof film layer (1204), and a wear-resistant layer (1206) is fixedly connected to the front end of the nano oleophobic layer (1205).

4. A touch LCD display screen according to claim 3, characterized in that: The waterproof layer (1202) is made of polytetrafluoroethylene, and the anti-glare layer (1203) contains a number of microlenses arranged in an array. The microlenses are composed of arcs with a diameter of 80um-120um.

5. A touch LCD display screen according to claim 3, characterized in that: The nano-oleophobic layer (1205) is made of siloxane-based materials, and the wear-resistant layer (1206) is made of polycarbonate.

6. A touch LCD display screen according to claim 2, characterized in that: The inner wall of the connecting tenon (13) fits tightly against the outer wall of the connecting tenon (14), and the inner wall of the slot (15) fits tightly against the outer wall of the insert (16).

Citation Information

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