Anti-fingerprint pure plane resistive touch screen
By introducing a combination of privacy layer, radiation protection layer and fingerprint protection layer into the resistive touch screen, the problem of easy contamination of the resistive touch screen surface is solved, achieving high transparency, low radiation and long life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU DADAQI INTELLIGENT PHOTOELECTRIC CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-04-21
AI Technical Summary
Existing resistive touchscreens are prone to becoming dirty and fingerprint-stained after prolonged use, resulting in reduced clarity.
It adopts a combined structure of ITO conductive glass, circuit layer, double-sided adhesive, ITO conductive film, privacy layer, anti-radiation layer and anti-fingerprint layer. The privacy layer improves privacy, the anti-radiation layer reduces radiation, the anti-fingerprint layer reduces fingerprint residue, and the combination of nano-silver wire and tempered glass material improves the transparency and durability of the touch screen.
It improves the transparency and privacy of the touchscreen, reduces radiation exposure, extends its lifespan, and makes the surface less prone to fingerprints, maintaining clarity and stability.
Smart Images
Figure CN224152957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of resistive touch screen technology, specifically to an anti-fingerprint pure planar resistive touch screen. Background Technology
[0002] Resistive touchscreens control screen functionality through pressure sensing. When not in contact, two thin films coated with conductive indium tin oxide (ITO) are separated by microparticles. When the user presses the film with a stylus or fingertip, causing it to indent, it becomes conductive with the other film. By detecting changes in pressure on the axis, the corresponding pressure point is calculated, thus determining the coordinates. Currently, four-wire planar resistive touchscreens primarily use an outer layer of PET printed with black ink, a middle layer of ITO film with silver paste printed on it to form the upper circuit, and a lower layer of ITO glass with silver paste printed on it to form the lower circuit. These three layers are bonded together using OCA or double-sided adhesive to achieve touchscreen functionality.
[0003] However, during the use of resistive touch screens, the surface of the touch screen is easily contaminated by external dirt and user fingerprints. Therefore, after a long period of use, a large number of fingerprints adhere to the touch screen surface, which will reduce the clarity of the entire screen surface.
[0004] To address the aforementioned issues, this application proposes an anti-fingerprint pure planar resistive touchscreen. Utility Model Content
[0005] The present invention aims to provide an anti-fingerprint pure planar resistive touch screen, mainly to solve the problem that after long-term use of existing resistive touch screens, a large number of fingerprints adhere to the touch screen surface, which leads to a decrease in the clarity of the entire screen surface.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0007] A fingerprint-resistant planar resistive touchscreen includes a touchscreen body, an FPC connecting cable fixedly connected to one side of the touchscreen body, an ITO conductive glass, a circuit layer fixedly connected to the top of the ITO conductive glass, a double-sided adhesive tape adhered to the top of the circuit layer, an ITO conductive film adhered to the top of the double-sided adhesive tape, a privacy layer fixedly connected to the top of the ITO conductive film, an anti-radiation layer fixedly connected to the top of the privacy layer, and an anti-fingerprint layer fixedly connected to the top of the anti-radiation layer.
[0008] The working principle and beneficial effects of this utility model:
[0009] 1. Working principle: The circuit layer consists of electronic silver paste circuits printed on the ITO side of the ITO conductive glass. The electronic silver paste circuits provide circuit connection and conduction for the ITO conductive glass. The electronic silver paste circuits are led out through FPC and connected to the motherboard interface of the customer's device through the FPC connection cable. This ensures that the circuit connection is successful, and the circuit function of the touch screen is completed, so that the touch screen can be used normally.
[0010] 2. Beneficial effects: The touch screen body includes ITO conductive glass, circuit layer, double-sided adhesive, ITO conductive film, privacy layer, anti-radiation layer and anti-fingerprint layer. By setting the privacy layer, the content displayed on the touch screen can be privacy-protected, thereby improving the privacy of the content viewed by the user and protecting privacy. The anti-radiation layer can reduce the radiation from the display screen and improve security. The anti-fingerprint layer makes it less likely for fingerprints to be left on the touch screen after being touched by a human finger or reduces the fingerprint residue on the touch screen surface.
[0011] Preferably, multiple protruding strips are fixedly connected to the top of the circuit layer and the bottom of the ITO conductive film. The top and bottom of the double-sided adhesive are provided with grooves that match the protruding strips. The circuit layer and the ITO conductive film are fixed together by the double-sided adhesive. After the protruding strips on the circuit layer and the ITO conductive film and the grooves on the double-sided adhesive are bonded to the inner wall of the grooves, the bonding area between the circuit layer and the ITO conductive film and the double-sided adhesive can be effectively increased, thereby making the touch screen more stable during use.
[0012] Preferably, the privacy layer can be made of PET material, which not only makes the touch screen more transparent, but also makes the content displayed on the touch screen privacy-protecting. Users need to be able to clearly see the screen and content from the front, thereby improving the privacy of the content viewed by the user and protecting privacy.
[0013] Preferably, the radiation shielding layer is made of silver nanowire material, which is a new type of transparent conductive material. It not only has high light transmittance but also excellent conductivity, which can effectively shield electromagnetic radiation, thereby reducing the radiation from the touch screen and improving safety.
[0014] Preferably, the anti-fingerprint layer is made of tempered glass, and its upper surface is coated with nano-chemical materials. Because tempered glass has good hardness and high transparency, using it for the anti-fingerprint layer effectively improves the strength of the touchscreen, thereby extending its lifespan. The nano-chemical materials coated on the upper surface of the anti-fingerprint layer give it strong hydrophobic, oil-resistant, and fingerprint-resistant properties. This material can easily wipe away dirt, fingerprints, and oil, making the surface smoother and more comfortable to the touch.
[0015] Preferably, the double-sided adhesive has a conductive fiber mesh embedded inside. The upper and lower surfaces of the conductive fiber mesh are in contact with the circuit layer and the ITO conductive film, respectively. The conductive fiber mesh is composed of warp silver wires and weft carbon nanotubes interwoven together. This not only enhances the conductivity of the resistive touch screen, but also improves its bending resistance.
[0016] Preferably, the double-sided adhesive is an optically transparent adhesive with a thickness of 0.05-0.15mm, which makes the electronic touch screen highly transparent and low-fog, thereby ensuring the display clarity of the touch screen. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0018] Figure 2 This is an exploded structural diagram of the entire utility model;
[0019] Figure 3 This is a schematic diagram of the overall structure of the circuit layer and double-sided adhesive of this utility model;
[0020] Figure 4 This is a schematic diagram of the overall structure of the ITO conductive film of this utility model;
[0021] Figure 5 This is a partially enlarged cross-sectional structural diagram of the present invention.
[0022] In the diagram: 1. Touch screen body; 2. FPC connecting cable; 3. ITO conductive glass; 4. Circuit layer; 5. Double-sided adhesive; 6. ITO conductive film; 7. Privacy layer; 8. Anti-radiation layer; 9. Anti-fingerprint layer; 10. Raised strip; 11. Groove; 12. Conductive fiber mesh. 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] Please see Figure 1-5A fingerprint-resistant planar resistive touchscreen includes a touchscreen body 1. An FPC (Flexible Printed Circuit) cable 2 is fixedly connected to one side of the touchscreen body 1. The touchscreen body 1 includes ITO (Indium Tin Oxide) conductive glass 3. A circuit layer 4 is disposed on the top of the ITO conductive glass 3. The circuit layer 4 consists of electronic silver paste circuitry printed on the ITO surface of the ITO conductive glass 3. The electronic silver paste circuitry provides circuit connection and conduction for the ITO conductive glass 3, and is led out through the FPC. Double-sided adhesive 5 is adhered to the top of the circuit layer 4. The double-sided adhesive 5 is an optically transparent adhesive with a thickness of 0.05-0.15mm, which makes the electronic touchscreen highly transparent and low-haze, thereby ensuring the touchscreen's... To enhance clarity, the double-sided adhesive 5 contains an embedded conductive fiber mesh 12. The upper and lower surfaces of the conductive fiber mesh 12 are in contact with the circuit layer 4 and the ITO conductive film 6, respectively. The conductive fiber mesh 12 is composed of interwoven warp silver wires and weft carbon nanotubes, with silver wire diameter ≤10μm and carbon nanotube bundle spacing of 50±5μm. This not only enhances the conductivity of the resistive touchscreen but also improves its bending resistance. The top of the double-sided adhesive 5 is bonded to the ITO conductive film 6, and the circuit layer 4 and the ITO conductive film 6 are fixed together using the double-sided adhesive 5. Multiple protrusions 10 are fixedly connected to the top of the circuit layer 4 and the bottom of the ITO conductive film 6. The top and bottom of the double-sided adhesive 5 also have protrusions that connect to the protrusions 10. The matching groove 11 effectively increases the bonding area between the circuit layer 4, the ITO conductive film 6, and the double-sided adhesive 5, resulting in higher stability during touchscreen use. A privacy layer 7 is fixedly connected to the top of the ITO conductive film 6. This privacy layer 7 is made of PET material, which not only increases the light transmittance of the touchscreen but also provides privacy protection for the displayed content. Users must be able to clearly see the image and content from the front, thus improving user privacy. A radiation protection layer 8 is fixedly connected to the top of the privacy layer 7. This radiation protection layer 8 is made of silver nanowire material, a new type of transparent... Conductive materials not only have high light transmittance but also excellent conductivity, effectively shielding electromagnetic radiation. This reduces radiation from the touchscreen, improving safety. An anti-fingerprint layer 9 is fixedly connected to the top of the anti-radiation layer 8. The anti-fingerprint layer 9 is made of tempered glass. Because tempered glass has good hardness and high transparency, the anti-fingerprint layer 9, made of tempered glass, effectively improves the strength of the touchscreen, thus extending its lifespan. Furthermore, the upper surface of the anti-fingerprint layer 9 is coated with nano-chemical materials, giving it strong hydrophobic, oil-resistant, and fingerprint-resistant properties. This material can easily wipe away dirt, fingerprints, and oil, making the surface smoother and more comfortable to the touch.
[0025] As can be seen from the above, the specific embodiments of this utility model are as follows:
[0026] The touchscreen body 1 includes ITO conductive glass 3, a circuit layer 4, double-sided adhesive 5, ITO conductive film 6, a privacy layer 7, an anti-radiation layer 8, and an anti-fingerprint layer 9. The circuit layer 4 consists of electronic silver paste circuits printed on the ITO side of the ITO conductive glass 3. The electronic silver paste circuits provide circuit connection and conduction for the ITO conductive glass 3. The electronic silver paste circuits are led out through FPC. When the touchscreen is in use, it is connected to the motherboard interface of the customer's device through the FPC connection cable 2. This ensures a successful circuit connection and completes the circuit function of the touchscreen, allowing it to be used normally. The privacy layer 7 provides a privacy protection effect for the content displayed on the touchscreen, thereby improving the privacy of the user's viewing content and protecting privacy. The anti-radiation layer 8 reduces the radiation emitted by the display screen, improving security. The anti-fingerprint layer 9 makes it less likely for fingerprints to be left on the touchscreen after being touched by a human finger, or reduces the amount of fingerprint residue on the touchscreen surface.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. An anti-fingerprint flat panel resistive touch screen comprising a touch screen body (1), characterized in that, An FPC connection cable (2) is fixedly connected to one side of the touch screen body (1). The touch screen body (1) includes ITO conductive glass (3). A circuit layer (4) is provided on the top of the ITO conductive glass (3). Double-sided adhesive (5) is bonded to the top of the circuit layer (4). An ITO conductive film (6) is bonded to the top of the double-sided adhesive (5). A privacy layer (7) is fixedly connected to the top of the ITO conductive film (6). An anti-radiation layer (8) is fixedly connected to the top of the privacy layer (7). An anti-fingerprint layer (9) is fixedly connected to the top of the anti-radiation layer (8).
2. The anti-fingerprint flat resistance touch screen according to claim 1, wherein: Multiple protrusions (10) are fixedly connected to the top of the circuit layer (4) and the bottom of the ITO conductive film (6). The top and bottom of the double-sided adhesive (5) are provided with grooves (11) that match the protrusions (10).
3. The anti-fingerprint flat panel resistive touch screen according to claim 1, wherein: Privacy shield (7) can be made of PET material.
4. The anti-fingerprint flat panel resistive touch screen according to claim 1, wherein: The radiation shielding layer (8) is made of silver nanowire material.
5. The anti-fingerprint flat panel resistive touch screen according to claim 1, wherein: The anti-fingerprint layer (9) is made of tempered glass material, and the upper surface of the anti-fingerprint layer (9) is coated with nano-chemical materials.
6. The anti-fingerprint flat panel resistive touch screen according to claim 1, wherein: The double-sided tape (5) has a conductive fiber mesh (12) embedded inside. The upper and lower surfaces of the conductive fiber mesh (12) are in contact with the circuit layer (4) and the ITO conductive film (6), respectively.
7. The anti-fingerprint flat panel resistive touch screen according to claim 1, wherein: Double-sided tape (5) is an optically transparent adhesive with a thickness of 0.05-0.15 mm.