An anti-fog water glass touch screen structure with built-in heating wire
By incorporating a partitioned heating wire layer and control circuit module within the glass touchscreen, the problem of slow fogging at the screen edges is resolved, achieving efficient anti-fog treatment and improved screen clarity, while extending its service life.
Patent Information
- Application Number
- CN202521284864.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-16
- Estimated Expiration
- 2035-06-23
AI Technical Summary
The heating wires of existing glass touch screens are usually distributed in a grid or S-shape, which makes the screen edges more prone to fogging, slow anti-fog water treatment response, and insufficient integration and response efficiency.
A heating wire layer is set between two glass substrates, with two types of heating wire arrangements: one in the middle and one at the edge. Combined with a hydrophobic coating, a metal frame, and a control circuit module, the heating wire is automatically controlled by a temperature and humidity sensor.
The integration of the heating wire and the anti-fogging water response efficiency have been improved, extending the service life, ensuring clear screen visibility, and enhancing protection and stability.
Smart Images

Figure CN224366416U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic display equipment technology, specifically to a structure for an anti-fog water glass touch screen with a built-in heating wire. Background Technology
[0002] With the development of touch technology, glass touchscreens are widely used in various electronic products. However, in high humidity and low temperature environments, condensation or fogging easily forms on the screen surface, especially in automobiles, outdoor equipment, kitchen appliances, bathroom appliances, and medical equipment, affecting the user experience and the reliability of the devices. Anti-fog glass touchscreens are specifically designed to solve the problem of condensation and fogging on the screen surface in environments with high humidity or large temperature variations. By embedding transparent heating wires (such as nano-silver wires or ITO) into the glass touchscreen, when environmental conditions that may lead to fogging are detected, the heating wires are energized to heat the screen surface, thereby preventing water vapor condensation and achieving the purpose of preventing fogging.
[0003] Existing glass touchscreens typically incorporate internal heating wires, which are usually arranged in a grid or S-shape. While this ensures a uniform temperature throughout, fogging is more likely to occur at the screen edges. Furthermore, the screens tend to have a slow response time when treated with anti-fog water. Therefore, there is an urgent need for a highly integrated, fast-response, energy-saving, and environmentally friendly anti-fog glass touchscreen structure to address these issues. Utility Model Content
[0004] The purpose of this invention is to provide a structure for an anti-fog glass touchscreen with a built-in heating wire, in order to solve the problem mentioned in the background art that the heating wires of glass touchscreens on the market are usually distributed in a grid or S-shape. Although the temperature is uniform throughout, fogging is more likely to occur at the edges of the screen, and the response is slow when anti-fog is applied.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a water-resistant glass touchscreen structure with built-in heating wire, comprising a main body of the water-resistant glass touchscreen structure, wherein a first glass substrate and a second glass substrate are provided on the main body of the water-resistant glass touchscreen structure, and a heating wire layer is provided on the inner side of the first glass substrate, wherein a first heating wire and a second heating wire that are not interconnected are provided on the heating wire layer, and an adhesive layer is respectively provided between the heating wire layer and the first glass substrate and the second glass substrate, wherein the second glass substrate is located on the other side of the heating wire layer, and a transparent conductive layer is provided on the other side of the second glass substrate, and a protective layer is provided on the other side of the transparent conductive layer, wherein the transparent conductive layer and the heating wire layer are connected together to a control circuit module, and the control circuit module integrates a microcontroller and a temperature and humidity sensor.
[0006] Preferably, the outer surface of the first glass substrate is coated with a hydrophobic coating with a transparent structure, and the edges of the first glass substrate and the second glass substrate are provided with a metal frame.
[0007] Preferably, a shock-absorbing layer is provided between the inner side of the first glass substrate and the metal frame, and the shock-absorbing layer is located on the outer ring of the heating wire layer.
[0008] Preferably, the first heating wire is arranged in the middle region of the first glass substrate, and the first heating wire is distributed in an S-shape.
[0009] Preferably, the second heating wire is arranged at the edge of the first glass substrate, and the upper end and both sides of the second heating wire are distributed in an S-shape.
[0010] Preferably, the protective layer is larger than the transparent conductive layer, and a sealing layer is provided between the protective layer and the metal frame.
[0011] Compared with existing technologies, the advantages of this invention are as follows: The anti-fog glass touchscreen structure with built-in heating wire places the heating wire layer between two glass substrates, effectively preventing external physical damage or chemical corrosion to the heating wire and extending its service life. Simultaneously, the heating wire layer is divided into outer ring heating and middle heating, allowing for control of the heating intensity in the middle area and edges according to actual needs. This results in high integration and higher anti-fog response efficiency. In this anti-fog glass touchscreen structure with built-in heating wire, the size of the first glass substrate is larger than that of the second glass substrate, ensuring high-strength protection for the touch area. A metal frame is provided around the outer ring of the glass substrate for stable assembly, improving overall protection. Furthermore, a hydrophobic coating is applied to the exterior of the first glass substrate to assist in anti-fog treatment. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the cross-sectional structure of an anti-fog water glass touch screen with a built-in heating wire according to the present invention.
[0013] Figure 2 This utility model relates to a structure for an anti-fog water glass touchscreen with a built-in heating wire. Figure 1 Enlarged structural diagram at point A in the middle;
[0014] Figure 3 This is a schematic diagram of the heating wire layer arrangement structure of an anti-fog water glass touch screen structure with built-in heating wire according to the present invention.
[0015] In the figure: 1. Anti-fog glass touch screen main structure; 2. First glass substrate; 3. Adhesive layer; 4. Heating wire layer; 401. First heating wire; 402. Second heating wire; 5. Second glass substrate; 6. Metal frame; 7. Transparent conductive layer; 8. Protective layer; 9. Shock-absorbing layer; 10. Hydrophobic coating; 11. Sealing layer; 12. Control circuit module; 1201. Microcontroller; 1202. Temperature and humidity sensor. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-3This utility model provides a technical solution: a water-repellent glass touchscreen structure with built-in heating wires, comprising a main body 1 for the water-repellent glass touchscreen structure, a first glass substrate 2 and a second glass substrate 5 disposed on the main body 1, the outer surface of the first glass substrate 2 being coated with a transparent hydrophobic coating 10, and the edges of the first glass substrate 2 and the second glass substrate 5 sharing a metal frame 6. This structure, through the special treatment of the first glass substrate 2 by the hydrophobic coating 10, can reduce the adhesion of water droplets on the surface of the first glass substrate 2, and, in conjunction with the heating operation, promote the rapid diffusion and evaporation of fog, helping to keep the screen clearly visible, and allowing the first heating wire 401 and the second heating wire 402 to work independently. Alternatively, they can work simultaneously. A shock-absorbing layer 9 is provided between the inner side of the first glass substrate 2 and the metal frame 6, and the shock-absorbing layer 9 is located on the outer ring of the heating wire layer 4. This structure allows for shock absorption during edge protection treatment of the first glass substrate 2 and the second glass substrate 5 via the metal frame 6, improving the protection of the glass substrate. The adhesive layer 3 uses optical adhesive or UV-curable adhesive, which has high light transmittance and high temperature resistance. A heating wire layer 4 is provided on the inner side of the first glass substrate 2. The heating wire layer 4 has a first heating wire 401 and a second heating wire 402 that are not interconnected. The first heating wire 401 is arranged in the middle area of the first glass substrate 2 and is distributed in an S-shape. This structure can... The first heating wire 401 heats the middle area of the first glass substrate 2. The first heating wire 401 has a wide distribution area, allowing for large-area heating. It works when the anti-fog glass touchscreen structure 1 requires large-area anti-fog treatment. The second heating wire 402 is arranged at the edge of the first glass substrate 2, and its upper end and sides are S-shaped. This structure allows the second heating wire 402 to heat the edge of the first glass substrate 2, especially the upper and sides, ensuring efficient heating for anti-fog treatment and avoiding interference with the operation of the control circuit module 12. Adhesive layers 3 are respectively provided between the heating wire layer 4 and the first glass substrate 2 and the second glass substrate 5. The second glass substrate 5 is... On the other side of the heating wire layer 4 and the other side of the second glass substrate 5, there is a transparent conductive layer 7, and on the other side of the transparent conductive layer 7, there is a protective layer 8. The size of the protective layer 8 is larger than that of the transparent conductive layer 7, and a sealing layer 11 is provided between the protective layer 8 and the metal frame 6. This structure protects the transparent conductive layer 7 by the protective layer 8, protecting the touch layer formed by the transparent conductive layer 7 from scratches or contamination. The transparent conductive layer 7 and the heating wire layer 4 are connected to a control circuit module 12, and the control circuit module 12 integrates a microcontroller 1201 and a temperature and humidity sensor 1202. The microcontroller 1201 and the temperature and humidity sensor 1202 are used to automatically control the working state of the heating wire according to the ambient temperature and humidity.
[0018] Working Principle: When using this anti-fog water-repellent glass touchscreen structure with built-in heating wires, firstly, a hydrophobic coating 10 is applied to the outer surface of the first glass substrate 2. The pre-formed heating wire layer 4 is then attached to the first glass substrate 2. The first heating wire 401 and the second heating wire 402 are respectively arranged in the central area and the edge area. The first glass substrate 2 and the heating wire layer 4 are then fixed using an adhesive layer 3, avoiding the generation of bubbles or other defects during this process. Next, the metal frame 6 is assembled with the first glass substrate 2, and the first glass substrate 2 is protected against shock by a shock-absorbing layer 9. Then, the second glass substrate 5 is bonded. After applying the adhesive layer 3 to the heating wire layer 4, the second glass substrate 5 is precisely positioned using the metal frame 6. Pressure is then applied to the relative connection between the second glass substrate 5 and the first glass substrate 2. If UV-curable adhesive is used, UV curing is required. The lamp is irradiated for a certain period of time to complete the curing process. A transparent conductive layer 7 is made on the side of the second glass substrate 5 away from the heating wire layer 4. It is patterned according to specific requirements, such as etching an X / Y axis electrode matrix to realize the touch function. Then, the protective layer 8 is fixed to the metal frame 6. The sealing layer 11 seals the gap between the protective layer 8 and the metal frame 6 to provide waterproof treatment and provide protection for the transparent conductive layer 7. The first heating wire 401 and the second heating wire 402 are respectively connected to the control circuit module 12 to ensure that all electrical connections are safe and reliable. The control circuit module 12 controls the operation of the heating wire and touch sensing through the microcontroller 1201, and uses the temperature and humidity sensor 1202 to monitor the temperature and humidity to ensure that the heating wire works under suitable conditions, effectively ensuring the anti-fog function of the anti-fog glass touch screen structure body 1, thereby completing a series of tasks.
[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A structure for an anti-fog water-cooled glass touchscreen with a built-in heating wire, comprising an anti-fog water-cooled glass touchscreen structure body (1), characterized in that: The main body (1) of the anti-fog glass touch screen structure is provided with a first glass substrate (2) and a second glass substrate (5), and a heating wire layer (4) is provided on the inner side of the first glass substrate (2). The heating wire layer (4) is provided with a first heating wire (401) and a second heating wire (402) that are not connected to each other. An adhesive layer (3) is provided between the heating wire layer (4), the first glass substrate (2), and the second glass substrate (5). The second glass substrate (5) is located on the other side of the heating wire layer (4), and a transparent conductive layer (7) is provided on the other side of the second glass substrate (5). A protective layer (8) is provided on the other side of the transparent conductive layer (7). The transparent conductive layer (7) and the heating wire layer (4) are connected to a control circuit module (12), and a microcontroller (1201) and a temperature and humidity sensor (1202) are integrated on the control circuit module (12).
2. The anti-fog water glass touch screen structure with built-in heating wire according to claim 1, characterized in that: The outer surface of the first glass substrate (2) is coated with a transparent hydrophobic coating (10), and the edges of the first glass substrate (2) and the second glass substrate (5) are provided with a metal frame (6).
3. The anti-fog water glass touch screen structure with built-in heating wire according to claim 2, characterized in that: A shock-absorbing layer (9) is provided between the inner side of the first glass substrate (2) and the metal frame (6), and the shock-absorbing layer (9) is located on the outer ring of the heating wire layer (4).
4. The anti-fog water glass touch screen structure with built-in heating wire according to claim 1, characterized in that: The first heating wire (401) is arranged in the middle region of the first glass substrate (2), and the first heating wire (401) is distributed in an S-shape.
5. The anti-fog water glass touch screen structure with built-in heating wire according to claim 1, characterized in that: The second heating wire (402) is arranged at the edge of the first glass substrate (2), and the upper end and both sides of the second heating wire (402) are distributed in an S-shape.
6. The anti-fog water glass touch screen structure with built-in heating wire according to claim 2, characterized in that: The protective layer (8) is larger than the transparent conductive layer (7), and a sealing layer (11) is provided between the protective layer (8) and the metal frame (6).