Touch module integrated with NFC (near field communication) function and automobile rearview mirror touch module

Abstract

The utility model discloses a touch module integrated with an NFC (near field communication) function, which comprises a cover plate, touch glass arranged below the cover plate and OCA (optical clear adhesive) for attaching the cover plate and the touch glass together, and is characterized in that the cover plate comprises a glass substrate, a first layer of shading ink, a second layer of shading ink and lightproof ink which are sequentially arranged from top to bottom; the first layer of shading ink is screen-printed on the glass substrate and covers the outer edge of the visible area; the second layer of shading ink is screen-printed on the first layer of shading ink; the light-proof printing ink is screen-printed on the second layer of shading printing ink; the touch glass comprises a top metal layer, an ITO layer and a sensor glass layer, and a touch signal wiring layer and an NFC coil are arranged in the top metal layer. According to the touch module integrated with the NFC function, integrated design of the touch signal wiring layer and the NFC coil is achieved by sharing the top metal layer. The structural design not only optimizes the spatial layout of the module, but also reduces the requirements of multi-layer design and additional elements, thereby effectively reducing the production cost.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of touch modules, and particularly relates to a touch module integrated with an NFC function and a rearview mirror touch module of a vehicle. BACKGROUND

[0002] With the progress of intelligent technology, touch technology is widely used in various devices, especially in the fields of automobiles, smart homes, smart devices, etc. In order to improve the intelligent degree of the device, a touch module integrated with a touch function and an NFC (Near Field Communication) function has become a trend. The integration of the NFC function not only improves the interactivity of the device, but also provides users with convenient identity authentication, rapid pairing and information exchange services, etc.

[0003] Therefore, a touch module integrated with an NFC function is designed, which can be widely applied to various smart devices, such as smart rearview mirrors of vehicles, smart door locks, smart home control panels, etc., and becomes an important means to improve product functions and market competitiveness. SUMMARY

[0004] The application aims to solve the problems in the prior art, and provides a touch module integrated with an NFC function which can accurately touch and sense and conveniently authenticate NFC, and further provides a rearview mirror touch module of a vehicle integrated with an NFC function.

[0005] To solve the above technical problems, the application adopts the following technical method: the application discloses a touch module integrated with an NFC function, which comprises a cover plate, a touch glass arranged below the cover plate, and OCA glue for bonding the cover plate and the touch glass together, wherein the cover plate comprises a glass substrate, a first layer of light shielding ink, a second layer of light shielding ink and light shielding ink arranged in sequence from top to bottom.

[0006] The first layer of light shielding ink is screen printed on the glass substrate and covers the outer edge of the visible area.

[0007] The second layer of light shielding ink is screen printed on the first layer of light shielding ink.

[0008] The light shielding ink is screen printed on the second layer of light shielding ink.

[0009] The touch glass comprises a top metal layer, an ITO layer and a sensor glass layer, and the top metal layer is internally provided with a touch signal wire layer and an NFC coil.

[0010] Further, the area of the light shielding ink of the light shielding ink is greater than the area of the NFC icon of the glass substrate.

[0011] Further, the first layer of light-shielding ink is hollowed out in the visible area, and the visible area is extended outward by 0.3-0.6 mm relative to the TFT AA area and is retracted inward by 0.2-0.5 mm relative to the outer edge of the glass substrate.

[0012] Further, the visible area of the second layer of light-shielding ink is retracted inward by 0.2-0.6 mm relative to the first layer of light-shielding ink.

[0013] Further, an OC2 layer is arranged between the OCA glue and the top metal layer.

[0014] Further, an ITO bridging layer is arranged between the ITO layer and the sensor glass layer, and the ITO bridging layer is connected to the ITO layer to ensure smooth signal transmission.

[0015] Further, an OC1 layer is arranged between the ITO layer and the ITO bridging layer.

[0016] Further, the thickness of the first layer of light-shielding ink is generally 0.005-0.015 mm, and the thickness of the light-shielding ink is generally 0.005-0.015 mm.

[0017] Further, the color of the light-shielding ink is gray, mirror silver, or white.

[0018] The application also discloses an automobile rearview mirror touch module integrated with an NFC function, which comprises the above-mentioned touch module integrated with an NFC function and a rearview mirror support and a mirror assembly. Advantages

[0019] 1. Compared with the prior art, the touch module integrated with an NFC function of the application realizes the integrated design of the touch signal wiring layer and the NFC coil by sharing the top metal layer. This structural design not only optimizes the spatial layout of the module, but also reduces the need for multiple layers of design and additional components, thereby effectively reducing production costs. At the same time, the integration of the NFC function enables the touch module to realize multiple functions while remaining compact and thin, and is suitable for various smart devices, such as smart automobile rearview mirrors, smart door locks, etc.

[0020] 2. The module is designed with fine multi-layer ink, including a first layer of light-shielding ink, a second layer of light-shielding ink, and light-shielding ink, which ensures the light tightness of the visible area, prevents light leakage, and enhances the display effect. The multi-layer design of the light-shielding ink not only improves the visual effect, but also ensures the stability of the touch signal. In addition to the use of OCA optical glue layer, these designs ensure that the module has excellent touch response capability and display clarity, meeting the needs of different application scenarios.

[0021] 3. The integrated NFC function adds powerful security authentication and convenient interaction capabilities to the touch module. Through NFC, the device can achieve functions such as fast identity verification, device pairing, and authorization control. For example, a smart rearview mirror can automatically adjust to a preset angle after verifying the identity of the driver through NFC. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Structure stack diagram of the touch module in the present application;

[0023] Figure 2 Overall structure diagram of the touch module in the present application;

[0024] Figure 3 Partial diagram of the cover plate silk screen NFC in the touch module in the present application;

[0025] Figure 4 Coating diagram of the second layer of light shielding ink and the light shielding ink in the present application. DETAILED DESCRIPTION

[0026] The present application will be further described in detail below in conjunction with the description of the drawings and specific embodiments.

[0027] Example 1: A touch module integrated with NFC function

[0028] As shown in Figures 1-3 , the present embodiment provides a touch module integrated with NFC function. The module is composed of the following main components:

[0029] Cover plate 1: including glass substrate 11, first layer of light shielding ink 12, second layer of light shielding ink 13 and light shielding ink 14 arranged in order from top to bottom.

[0030] Glass substrate 11: as the basic part of the touch module, it is usually made of high-strength glass or other transparent materials, with good anti-falling, wear resistance and transparency.

[0031] First layer of light shielding ink 12: silk-screen printed on the glass substrate, covering the outer edge of the visible area, the ink thickness is generally 0.005-0.015mm, the hollow area is extended 0.3-0.6mm relative to the TFT AA area, and the glass shape is retracted 0.2~0.5mm relative to the inside, to ensure the light tightness of the display area.

[0032] Second layer of light shielding ink 13: silk-screen printed on the first layer of light shielding ink 12, used to enhance the light shielding effect and avoid light leakage, the visible area of the ink is retracted 0.2~0.6mm relative to the first layer of ink.

[0033] Non-transparent ink 14: silk-screened on the second layer of ink, covering the icon area, the ink color can be gray, mirror silver or white, the thickness is generally 0.005-0.015mm.

[0034] OCA optical glue 2: bonds the cover plate 1 and the touch glass 3 together, ensuring optical transparency and bonding strength, preventing display defects such as bubbles.

[0035] Touch glass 3: includes a top metal layer 31, an ITO layer 32, and a sensor glass layer 33.

[0036] Top metal layer 31: contains a touch signal trace layer 311 and an NFC coil 312, used for transmitting touch signals and supporting NFC functions. The touch signal trace layer transmits touch signals to the device's control system through metal lines, and the NFC coil is responsible for near-field communication functions.

[0037] ITO layer 32: as a transparent conductive material, the ITO layer is mainly used for touch sensing, capable of sensing user touch operations and transmitting signals.

[0038] Sensor glass layer 33: carries touch sensors, responsible for detecting touch signals and transmitting them to the device control system.

[0039] OC2 layer 41: located between OCA glue 2 and top metal layer 31, further optimizing optical performance and bonding strength.

[0040] ITO bridge layer 43: located between ITO layer 32 and sensor glass layer 33, connecting the ITO layer to ensure smooth signal transmission.

[0041] OC1 layer 42: located between the ITO layer and the ITO bridge layer, used to further optimize optical performance and bonding.

[0042] Example 2: An NFC-integrated automotive rearview mirror touch module

[0043] This embodiment provides an NFC-integrated automotive rearview mirror touch module. The device includes an NFC-integrated touch module based on the description in Example 1, as well as a rearview mirror support and mirror assembly.

[0044] NFC-integrated touch module: as described in Example 1, the NFC-integrated touch module contains a cover plate, OCA glue, touch glass, etc., and integrates NFC functions.

[0045] Rearview mirror support and mirror assembly: as the core part of the automotive rearview mirror, the rearview mirror support provides support, and the mirror assembly is used to reflect the image behind, ensuring the driver's clear vision.

[0046] Functions of the automobile rearview mirror touch module:

[0047] Through the touch module, the driver can adjust the angle and brightness of the rearview mirror, conveniently adjusting the display of the mirror surface according to needs.

[0048] After integrating the NFC function, the driver can quickly pair with the rearview mirror through smart devices such as smart keys or smartphones, realizing functions such as automatic adjustment and identity authentication. For example, after the driver authenticates through the smartphone NFC, the rearview mirror can automatically adjust to the preset angle.

[0049] Vehicle control system: connected with the rearview mirror touch module, controls the functions of the rearview mirror, such as angle adjustment and brightness adjustment.

[0050] Power management module: provides power for the rearview mirror touch module to ensure the normal operation of various functions.

[0051] NFC chip and antenna: used for NFC communication with smart keys or smart devices, providing quick authentication and function activation.

[0052] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An integrated NFC function touch module, comprising a cover plate (1), a touch glass (3) arranged below the cover plate (1), and an OCA adhesive (2) bonding the cover plate (1) and the touch glass (3) together, characterized in that: The cover plate (1) comprises a glass substrate (11), a first layer of shading ink (12), a second layer of shading ink (13) and non-transparent ink (14) arranged in sequence from top to bottom; The first layer of shading ink (12) is screen-printed on the glass substrate (11) and covers the outer edge of the visual area; The second layer of shading ink (13) is screen-printed on the first layer of shading ink (12); The non-transparent ink (14) is screen-printed on the second layer of shading ink (13); The touch glass (3) comprises a top metal layer (31), an ITO layer (32) and a sensor glass layer (33), and the top metal layer (31) is internally provided with a touch signal wire layer (311) and an NFC coil (312). 2.The touch module with integrated NFC functionality of claim 1, wherein: The non-transparent ink area of the non-transparent ink (14) is larger than the area of the NFC icon (10) of the glass substrate (11). 3.The touch module with integrated NFC functionality of claim 1, wherein: The first layer of shading ink (12) is hollowed out in the visual area, and the visual area is extended by 0.3-0.6 mm relative to the TFT AA area and is retracted by 0.2-0.5 mm relative to the outer edge of the glass substrate (11).

4. The touch module with integrated NFC functionality according to claim 3, characterized in that: The visual area of the second layer of shading ink (13) is retracted by 0.2-0.6 mm relative to the first layer of shading ink (12).

5. The touch module with integrated NFC functionality of claim 1, wherein: An OC2 layer (41) is further arranged between the OCA glue (2) and the top metal layer (31).

6. The touch module with integrated NFC functionality according to claim 5, characterized in that: An ITO bridging layer (43) is arranged between the ITO layer (32) and the sensor glass layer (33) to connect the ITO layer (32) and ensure smooth signal transmission.

7. The touch module with integrated NFC functionality according to claim 6, characterized in that: An OC1 layer (42) is arranged between the ITO layer (32) and the ITO bridging layer (43).

8. The touch module with integrated NFC functionality of claim 1, wherein: The ink thickness of the first layer of shading ink (12) is generally 0.005-0.015 mm, and the thickness of the non-transparent ink (14) is generally 0.005-0.015 mm.

9. The touch module with integrated NFC functionality of claim 1, wherein: The color of the non-transparent ink (14) is gray, mirror silver or white.

10. An integrated NFC function automotive rearview mirror touch module, characterized in that: The application relates to a rearview mirror bracket and a mirror assembly comprising an integrated NFC function touch module. The application relates to a rearview mirror bracket and a mirror assembly comprising an integrated NFC function touch module.

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