Ultraviolet-proof capacitive touch screen

Abstract

The utility model relates to the technical field of capacitive touch screens, in particular to an ultraviolet-proof capacitive touch screen which comprises an LCD (liquid crystal display) module, sensor glass is arranged at the top of the LCD module, a conductive layer is arranged on the surface of the sensor glass, UV (ultraviolet) optical transparent adhesive is arranged at the top of the sensor glass, and the conductive layer is arranged on the surface of the sensor glass. The top of the UV optical transparent adhesive is provided with an ultraviolet-proof layer, the top of the ultraviolet-proof layer is provided with covering glass, the top of the covering glass is provided with a glass coating, the top of the glass coating is provided with a polarized light protection sheet, and the structure of the ultraviolet-proof layer, the polarized light protection sheet, the covering glass and the glass coating is utilized, so that the problem that in the prior art, the polarized light protection sheet is prone to deformation is solved. Most capacitive screens generally do not have the ultraviolet-proof function, liquid crystal panels are prone to being damaged when the capacitive screens are used outdoors, the service life is shortened, and practicability is low.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitive touch screens, in particular to an ultraviolet-proof capacitive touch screen. Background Art

[0002] Capacitive touchscreens are widely used in various electronic devices, such as smartphones and tablets. Their operating principle is based on a layer of special transparent metallic conductive material attached to the glass surface. When a finger or other conductive object touches the screen, a coupling capacitor forms between the contact point and the conductive layer, changing the capacitance at the contact point and causing a shift in the oscillation frequency. By measuring these changes, the location of the touch point can be determined. However, traditional capacitive touchscreens can be damaged by UV rays when used outdoors or in environments with strong UV rays. UV rays not only accelerate the aging of the screen surface, causing color distortion and reduced brightness, but can also trigger chemical reactions within the screen, further shortening its lifespan.

[0003] In the prior art, most capacitive screens generally do not have an anti-ultraviolet function, which can easily damage the liquid crystal panel when used outdoors, reducing the service life and having low practicality.

[0004] Therefore, it is particularly important to design a capacitive touch screen that is UV-resistant to change the above technical defects and improve overall practicality. Utility Model Content

[0005] The purpose of the present invention is to provide a capacitive touch screen with UV protection to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A UV-proof capacitive touch screen includes an LCD display module, a sensor glass is provided on the top of the LCD display module, a conductive layer is provided on the surface of the sensor glass, a UV optically transparent adhesive is provided on the top of the sensor glass, a UV-proof layer is provided on the top of the UV optically transparent adhesive, a cover glass is provided on the top of the UV-proof layer, a glass coating is provided on the top of the cover glass, and a polarizing protective film is provided on the top of the glass coating.

[0008] As a preferred solution of the present invention, the conductive layer is an indium tin oxide layer, which has good conductivity and light transmittance, and is used to ensure the capacitive sensing and display clarity of the touch screen.

[0009] As a preferred solution of the present invention, the anti-ultraviolet layer adopts a multi-layer structure, including an ultraviolet absorbing layer and an ultraviolet reflecting layer. The ultraviolet absorbing layer is made of nano titanium dioxide, and the ultraviolet reflecting layer is made of copper fiber.

[0010] As a preferred solution of the present invention, the cover glass is made of high-strength tempered glass material to improve the wear resistance and impact resistance of the touch screen, and the UV protection layer is connected to the cover glass by an optically transparent adhesive.

[0011] As a preferred solution of the present invention, the polarizing protection plate is made of polarizing film material to reduce glare and reflection and improve visibility. The polarizing protection plate is connected to the glass coating by dry bonding.

[0012] As a preferred solution of the present invention, the glass coating is a nano coating that is anti-fingerprint, anti-oil and wear-resistant, and the glass coating is directly coated on the surface of the cover glass.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In the utility model, a UV-proof capacitive touch screen is set up, and the structure of UV-proof layer, polarizing protection sheet, cover glass and glass coating is utilized. When the image is displayed by the set LCD display module, the indium tin oxide conductive layer on the sensor glass responds to the touch operation and transmits the signal. The UV-proof layer is composed of nano titanium dioxide UV absorption layer and copper fiber UV reflection layer, which effectively blocks UV rays and protects internal components from damage. The cover glass adopts reinforced glass material, which greatly improves the wear resistance and impact resistance of the touch screen. The glass coating is directly coated on the cover glass, which enhances the cleanliness and service life. Finally, the polarizing protection sheet is tightly attached to the glass coating through dry bonding technology, which significantly reduces glare and reflection and improves visibility. This UV-proof capacitive touch screen effectively resists the damage of strong outdoor UV environment while maintaining the sensitivity of traditional capacitive screens, prolongs the service life, and solves the problem in the existing technology that most capacitive screens generally do not have UV protection function, are easily damaged by liquid crystal panels when used outdoors, reduce service life, and have low practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a planar structural diagram of the entire utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall position of the utility model.

[0018] In the figure: 1. LCD display module; 101. Sensor glass; 102. Conductive layer; 103. UV optically transparent adhesive; 104. UV protection layer; 105. Cover glass; 106. Glass coating; 107. Polarizing protection film. DETAILED DESCRIPTION

[0019] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. Several embodiments of the present invention are provided. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0024] A UV-proof capacitive touch screen includes an LCD display module 1, a sensor glass 101 is provided on the top of the LCD display module 1, a conductive layer 102 is provided on the surface of the sensor glass 101, a UV optically transparent adhesive 103 is provided on the top of the sensor glass 101, a UV-proof layer 104 is provided on the top of the UV optically transparent adhesive 103, a cover glass 105 is provided on the top of the UV-proof layer 104, a glass coating 106 is provided on the top of the cover glass 105, and a polarizing protective film 107 is provided on the top of the glass coating 106. When the LCD display module 1 displays an image, the indium tin oxide conductive layer 102 on the sensor glass 101 responds to touch operations and transmits signals, and the UV optically transparent adhesive 103 is provided on the top of the sensor glass 101. 3. Ensure a tight connection between each layer while maintaining excellent optical properties. The UV protection layer 104 is composed of a nano-titanium dioxide UV absorption layer and a copper fiber UV reflection layer, effectively blocking UV rays and protecting internal components from damage. The cover glass 105 is made of reinforced glass material, which greatly improves the touch screen's wear and impact resistance. The glass coating 106 is directly applied to the cover glass, enhancing cleanliness and service life. Finally, the polarizing protection film 107 is tightly bonded to the glass coating using dry bonding technology, significantly reducing glare and reflections and improving visibility. This UV-resistant capacitive touch screen effectively resists damage from strong outdoor UV environments while maintaining the sensitivity of traditional capacitive screens, extending its service life.

[0025] The conductive layer 102 is an indium tin oxide layer, which has good conductivity and light transmittance, and is used to ensure the capacitive sensing and display clarity of the touch screen. The UV protection layer 104 adopts a multi-layer structure, including a UV absorption layer and a UV reflection layer. The UV absorption layer is made of nano-titanium dioxide, and the UV reflection layer is made of copper fiber, which blocks the invasion of ultraviolet rays and protects the components inside the touch screen from UV damage. The use of nano-titanium dioxide and copper fiber improves the durability of the UV protection layer. The cover glass 105 is made of high-strength reinforced glass material to improve the wear resistance and impact resistance of the touch screen. The UV protection layer 104 and the cover glass 105 are connected by an optically transparent adhesive. The polarizing protection sheet 107 is made of polarizing film material to reduce glare and reflection and improve visibility. The polarizing protection sheet 107 is connected to the glass coating 106 by dry bonding, which reduces glare and reflection and improves the visibility of the touch screen, allowing users to clearly see the screen content in different lighting environments. The dry bonding connection technology ensures a tight fit between the polarizing protection sheet 107 and the glass coating 106, avoiding problems such as bubbles and warping. The glass coating 106 is an anti-fingerprint, anti-oil and wear-resistant nano-coating, and the glass coating 106 is directly coated on the surface of the cover glass 105, extending the service life of the touch screen.

[0026] The following describes the working process of this utility model: When using this UV-resistant capacitive touch screen, first, when the LCD display module 1 displays an image, the indium tin oxide conductive layer 102 on the sensor glass 101 is responsible for sensing touch operations and transmitting signals. The UV optically transparent adhesive 103 ensures that the layers are tightly connected and have good optical performance. The UV protection layer 104 is composed of a nano-titanium dioxide UV absorption layer and a copper fiber UV reflection layer, effectively blocking UV rays to protect internal components. The cover glass 105 is made of reinforced glass material to improve wear and impact resistance. The UV protection layer 104 and the cover glass 105 are connected by an optically transparent adhesive to further enhance durability. The glass coating 106 is directly applied to the cover glass 105 to improve cleanliness and service life. Finally, the polarizing protection film 107 is tightly bonded to the glass coating 106 using dry bonding technology to reduce glare and reflection, improve visibility, and ensure that users can clearly see the screen content in different lighting environments. The LCD display module is an existing mature technology and is common knowledge in the field. It can be implemented through simple circuit connections by technicians in this field. Therefore, its specific principles and circuit connections are not detailed here.

[0027] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A UV-resistant capacitive touch screen, comprising an LCD display module (1), characterized in that: A sensor glass (101) is provided on the top of the LCD display module (1), a conductive layer (102) is provided on the surface of the sensor glass (101), a UV optically transparent adhesive (103) is provided on the top of the UV optically transparent adhesive (103), an anti-ultraviolet layer (104) is provided on the top of the anti-ultraviolet layer (104), a cover glass (105) is provided on the top of the cover glass (105), a glass coating (106) is provided on the top of the glass coating (106), and a polarizing protective film (107) is provided on the top of the glass coating (106).

2. The UV-resistant capacitive touch screen according to claim 1, characterized in that: The conductive layer (102) is an indium tin oxide layer, which facilitates good conductivity and light transmittance, and is used to ensure the capacitance sensing and display clarity of the touch screen.

3. The UV-resistant capacitive touch screen according to claim 1, wherein: The anti-ultraviolet layer (104) adopts a multi-layer structure, comprising an ultraviolet absorption layer and an ultraviolet reflection layer, the ultraviolet absorption layer is made of nano titanium dioxide, and the ultraviolet reflection layer is made of copper fiber.

4. The UV-resistant capacitive touch screen according to claim 1, wherein: The cover glass (105) is made of a high-strength reinforced glass material and is used to improve the wear resistance and impact resistance of the touch screen. The anti-ultraviolet layer (104) and the cover glass (105) are connected by an optically transparent adhesive.

5. The UV-resistant capacitive touch screen according to claim 1, characterized in that: The polarizing protection sheet (107) is made of a polarizing film material and is used to reduce glare and reflection and improve visibility. The polarizing protection sheet (107) is connected to the glass coating (106) by dry bonding.

6. The UV-resistant capacitive touch screen according to claim 1, characterized in that: The glass coating (106) is a nano-coating that is anti-fingerprint, anti-oil and wear-resistant, and the glass coating (106) is directly coated on the surface of the cover glass (105).

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