Wear-resistant capacitive touch screen

Abstract

The utility model discloses a wear-resistant capacitive touch screen, and relates to the technical field of touch screens. The utility model comprises a substrate used for providing support; the transparent conducting layer is arranged on the substrate and is used for realizing a capacitive touch function; the protective layer is arranged on the transparent conductive layer; the buffer layer is arranged between the transparent conductive layer and the protective layer; and the sealing ring is arranged at the edge of the capacitive touch screen in an attached and pressed manner. Through the arrangement of the glass substrate, a firm supporting foundation is provided, the overall structural stability of the touch screen is enhanced, the anti-falling and anti-pressure capacities of the touch screen are improved, and therefore the service life of a product is prolonged; the transparent conductive layer realizes an efficient capacitive touch function, and ensures the sensitivity and accuracy of touch response; the protective layer greatly enhances the wear resistance and scratch resistance of the surface of the touch screen; in addition, due to the design of the micron-sized concave-convex structure on the surface of the protective layer, the touch hand feeling is improved, and fingerprint residues are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of touch screens, in particular to a wear-resistant capacitive touch screen. Background Art

[0002] With the popularity of smartphones, tablets and other smart devices, capacitive touch screens have become an important part of modern electronic devices due to their convenient operation and sensitive response.

[0003] Although existing capacitive touch screens provide a good touch experience, they are susceptible to wear and tear during daily use, especially in frequently used environments such as information machines in public places and industrial control panels. When subjected to external force, ordinary capacitive touch screens may crack or even break, especially when dropped or collided. Due to structural limitations, some capacitive touch screens cannot effectively prevent the intrusion of dust and moisture, which will directly affect the service life of the screen. Some touch screens will have fingerprint residue after long-term use, affecting the visual effect, and may also cause false touches due to unreasonable design of the touch area.

[0004] To this end, we provide a wear-resistant capacitive touch screen to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a wear-resistant capacitive touch screen, comprising:

[0007] a base plate, used to provide support;

[0008] A transparent conductive layer is provided on the substrate and is used to realize a capacitive touch function;

[0009] a protective layer, disposed on the transparent conductive layer;

[0010] a buffer layer, disposed between the transparent conductive layer and the protective layer;

[0011] The sealing ring is tightly mounted on the edge of the capacitive touch screen.

[0012] The present invention is further configured such that the surface of the protective layer is provided with a micron-level concave-convex structure.

[0013] The present invention is further configured such that the buffer layer is made of a polyurethane elastomer material and has a thickness of 20 μm to 50 μm.

[0014] The present invention is further configured such that the substrate is a glass substrate with a thickness of 0.5 mm to 1.2 mm.

[0015] The present invention is further configured such that the transparent conductive layer is made of indium tin oxide material and has a thickness of 100 nm to 200 nm.

[0016] The present invention is further configured such that the protective layer has a thickness of 100 μm to 200 μm and is surface hardened.

[0017] The present invention is further configured such that at least one sensing area is provided on the upper portion of the transparent conductive layer, and the sensing area is composed of a plurality of cross-arranged conductive lines.

[0018] The present invention is further configured such that a covering layer is provided above the protective layer, with a thickness of 25 μm to 50 μm.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model provides a solid support foundation through the provision of a glass substrate, which not only enhances the overall structural stability of the touch screen, but also improves its drop and pressure resistance, thereby extending the service life of the product; the transparent conductive layer realizes efficient capacitive touch function, ensuring the sensitivity and accuracy of touch response; at the same time, the good light transmittance of this material ensures the clarity of the touch screen and improves the user experience; the protective layer greatly enhances the wear resistance and scratch resistance of the touch screen surface; in addition, the micron-level concave-convex structure design on the surface of the protective layer improves the touch feel, reduces fingerprint residue, and improves user comfort.

[0021] 2. The utility model effectively absorbs external pressure and vibration by adding a buffer layer between the transparent conductive layer and the protective layer, reducing direct impact on the conductive layer, thereby ensuring the safety and stability of the internal components of the touch screen. The setting of the sealing ring ensures the waterproof and dustproof performance of the touch screen, prevents external pollutants from entering the internal circuit, maintains the normal operation of the product, and further extends the service life of the touch screen.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure layering of the utility model.

[0025] Figure 2 For the utility model Figure 1 A magnified schematic diagram of the structure in the middle.

[0026] Figure 3 For the utility model Figure 1 A magnified schematic diagram of the structure at point B in the middle.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1. Substrate; 2. Transparent conductive layer; 3. Protective layer; 4. Buffer layer; 5. Sealing ring; 6. Covering layer. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example

[0031] See also Figure 1-3 The present invention is a wear-resistant capacitive touch screen, comprising:

[0032] Substrate 1, used to provide support, is a glass substrate 1 with a thickness of 0.5 mm to 1.2 mm;

[0033] A transparent conductive layer 2 is provided on the substrate 1 and is used to implement the capacitive touch function. It is made of indium tin oxide material and has a thickness of 100nm to 200nm. At least one sensing area is provided on the upper portion of the transparent conductive layer 2. The sensing area consists of a plurality of cross-arranged conductive lines.

[0034] A protective layer 3 is provided on the transparent conductive layer 2, has a thickness of 100 to 200 μm, and has undergone surface hardening treatment. A covering layer 6 is provided on the protective layer 3, has a thickness of 25 to 50 μm, and has a micron-level concave-convex structure on the surface of the protective layer 3;

[0035] a buffer layer 4, disposed between the transparent conductive layer 2 and the protective layer 3, made of a polyurethane elastomer material, and having a thickness of 20 μm to 50 μm;

[0036] The sealing ring 5 is tightly fitted on the edge of the capacitive touch screen.

[0037] This technical solution aims to provide a durable and high-performance capacitive touch screen suitable for a variety of demanding application environments. The specific description of the capacitive touch screen is as follows:

[0038] Substrate 1 provides a strong, flat support surface to ensure that subsequent layers can be stably attached to it. It is made of special glass materials with high strength and low expansion coefficient, such as soda-lime glass or aluminosilicate glass. The thickness ranges from 0.5mm to 1.2mm. Different thicknesses are suitable for different applications. A thicker substrate 1 can provide better impact resistance.

[0039] The transparent conductive layer 2 implements the capacitive touch function, determining the touch position by sensing the capacitance change generated when a finger or other conductive object touches it. The thickness is set to 100nm to 200nm. Its thin and transparent properties enable it to effectively transmit light while maintaining good conductivity. One or more sensing areas are set on the top. These areas are composed of multiple conductive lines arranged perpendicular to each other to form a grid structure.

[0040] The protective layer 3 protects the transparent conductive layer 2 below from physical damage, improving the durability of the screen. The thickness is set to 100μm to 200μm. The increased thickness helps to improve the protection effect. After surface hardening treatment, the wear resistance is enhanced. The surface is provided with a micron-level concave-convex structure, which can improve the feel and reduce fingerprint residue.

[0041] The buffer layer 4 is made of polyurethane elastomer material as an intermediate layer to absorb external pressure and reduce direct impact on sensitive components below. The thickness is 20μm to 50μm. The appropriate thickness can provide buffering without significantly increasing the overall thickness.

[0042] The sealing ring 5 is set at the edge of the touch screen to prevent moisture and dust from entering the device, ensuring the long-term reliability of the touch screen. It is pressed against the capacitive touch screen to ensure a tight sealing effect.

[0043] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0044] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Wear-resistant capacitive touch screen, characterized in that, include: a base plate (1) for providing support; A transparent conductive layer (2) is provided on the substrate (1) and is used to realize a capacitive touch function; A protective layer (3) is provided on the transparent conductive layer (2); a buffer layer (4) disposed between the transparent conductive layer (2) and the protective layer (3); The sealing ring (5) is arranged at the edge of the capacitive touch screen in a tightly fitting manner.

2. The capacitive touch screen according to claim 1, wherein: The surface of the protective layer (3) is provided with a micron-level concave-convex structure.

3. The capacitive touch screen according to claim 1, wherein: The buffer layer (4) is made of polyurethane elastomer material and has a thickness of 20 μm to 50 μm.

4. The capacitive touch screen according to claim 1, wherein: The substrate (1) is a glass substrate (1) with a thickness of 0.5 mm to 1.2 mm.

5. The capacitive touch screen according to claim 1, wherein: The transparent conductive layer (2) is made of indium tin oxide material and has a thickness of 100 nm to 200 nm.

6. The capacitive touch screen according to claim 1, wherein: The protective layer (3) has a thickness of 100 μm to 200 μm and is surface hardened.

7. The capacitive touch screen according to claim 1, wherein: At least one induction area is provided on the upper portion of the transparent conductive layer (2), and the induction area is composed of a plurality of cross-arranged conductive lines.

8. The capacitive touch screen according to claim 1, wherein: A covering layer (6) is provided above the protective layer (3) and has a thickness of 25 μm to 50 μm.

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