Vehicle-mounted knob optical touch screen

Abstract

The utility model discloses a vehicle-mounted knob optical touch screen, which optimizes the layout of a vehicle-mounted touch screen by directly making a knob part on a touch display screen, saves space, creates an attractive man-machine interface and brings novel experience to a user by combining a physically-controlled knob with multi-point touch operation on the screen, and has the advantages of being simple in structure and convenient to use. The transparent cover plate is attached to the optical texture film, the surface micro-nano structure of the transparent cover plate can change the absorptivity and reflectivity of the material surface to light, then the color of the object surface is changed, the fine texture effect is obtained, and decoration is more attractive.

Description

Technical Field

[0001] The utility model relates to the technical field of touch display screens, in particular to a vehicle-mounted knob optical touch screen. Background Art

[0002] With the improvement of people's living standards and the advancement of electronic technology, the center console of the car has also changed from physical button operation to touch screen operation. However, touch screen operation requires the driver to identify and confirm the operation with his eyes, instead of relying on a simple glance or muscle memory like physical buttons or knobs. For many drivers, this will not be accustomed to it, and it also increases the danger of driving. Therefore, physical knobs and buttons are crucial to the operability of the center console.

[0003] With the continuous development of technology, the automotive industry has launched products that combine physical buttons or knobs with touch screens. Consumers not only have higher and higher requirements for the performance of electronic products, but also their requirements for comfort and appearance are constantly increasing. A very important part of the appearance of a product is its texture setting. At present, the overall appearance of the glass cover of the car touch screen appears to be relatively monotonous and boring, with a single display effect and lack of layering, resulting in a poor user experience and failing to attract consumers' attention. The existing texture processing technology is mainly direct silk screen printing on the glass substrate, but the silk screen film used cannot be too small in line width and line spacing, and the surface appears rough, which cannot achieve the effect of fine texture and affects the decorative effect of the pattern. Utility Model Content

[0004] In order to address the deficiencies of the above-mentioned prior art, the utility model provides a vehicle-mounted knob optical touch screen, which optimizes the layout of the vehicle-mounted touch screen by directly making the knob component on the touch display screen, saving space, and combining the physically controlled knob with the multi-touch operation on the screen to create an aesthetically pleasing human-computer interface and give users a novel experience. By bonding the transparent cover plate with an optical texture film, the surface micro-nano structure can change the absorption rate and reflectivity of the material surface to light, thereby changing the color of the object surface, obtaining a fine texture effect, and making the decoration more beautiful.

[0005] The technical problem to be solved by the utility model is achieved by the following technical solution: A vehicle-mounted knob optical touch screen comprises: a transparent cover plate, comprising an optical film layer provided on the surface and an adhesive layer bonded to the optical film layer;

[0006] A capacitive knob, which can generate different capacitance values ​​by rotating and displacing, and is adhered to the touch display area on the surface of the transparent cover;

[0007] A touch ITO layer, located on the lower surface of the transparent cover plate and provided with a knob sensing area, wherein the knob sensing area can sense the change of the capacitance value of the capacitive knob;

[0008] A micro-nano structure formed on the film surface by micro-machining technology is arranged on one side of the optical film layer close to the transparent cover plate. The optical effect generated by the micro-nano structure can form a dynamic or three-dimensional optical texture.

[0009] As a preferred embodiment of the vehicle-mounted knob optical touch screen provided by the utility model, the knob sensing area includes an outer circular ring sensing area and a central bonding area inside the circular ring, and the central bonding area is bonded to the capacitive knob corresponding to the transparent cover plate.

[0010] As a preferred implementation of the vehicle-mounted knob optical touch screen provided by the utility model, the capacitive knob is adhered to the transparent cover plate by double-sided adhesive.

[0011] As a preferred implementation of the vehicle-mounted knob optical touch screen provided by the utility model, the micro-nano structure is a periodic and continuous undulating shape, and the micro-nano structure is a triangular pyramid.

[0012] As a preferred implementation of the vehicle-mounted knob optical touch screen provided by the utility model, the thickness of the optical film layer is 0.1-0.25 mm, and a coating layer is provided on the surface of the optical film layer to improve the optical performance.

[0013] As a preferred implementation of the vehicle-mounted knob optical touch screen provided by the utility model, the optical film layer is a PET film or a PVC substrate.

[0014] As a preferred implementation of the vehicle-mounted knob optical touch screen provided by the utility model, the thickness of the adhesive layer is 25-250 um, and the adhesive layer is solid optical adhesive.

[0015] As a preferred implementation of the vehicle-mounted knob optical touch screen provided by the utility model, a protective layer is provided on a side of the optical film layer away from the transparent cover plate, and the surface hardness of the protective layer is 4H.

[0016] As a preferred implementation of the vehicle-mounted knob optical touch screen provided by the utility model, the transparent cover plate is glass or a composite plate.

[0017] As a preferred embodiment of the vehicle-mounted knob optical touch screen provided by the utility model, it also includes an FPC and a display module. The FPC is bound to the touch ITO layer pins, and the display module is attached to the lower surface of the touch ITO layer through an optical adhesive layer.

[0018] The utility model has the following beneficial effects:

[0019] The utility model optimizes the layout of the vehicle-mounted touch screen by directly making the knob component on the touch display screen, saving space, combining the physical control knob with the multi-touch operation on the screen, creating a beautiful human-machine interface and giving users a novel experience.

[0020] The utility model provides a transparent cover plate laminated with an optical texture film, the surface micro-nano structure of which can change the light absorptivity and reflectivity of the material surface, thereby changing the color of the object surface, obtaining a fine texture effect, and making the decoration more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the touch ITO layer structure of the vehicle-mounted knob optical touch screen provided by the utility model;

[0023] Figure 2 A side sectional view of the vehicle-mounted knob optical touch screen provided by the utility model;

[0024] Figure 3 A top view of the transparent cover plate of the vehicle-mounted knob optical touch screen provided by the utility model;

[0025] Figure 4 This is a schematic diagram of the transparent cover structure of the vehicle-mounted knob optical touch screen provided by the utility model;

[0026] Figure 5 A schematic diagram of the optical film structure of the vehicle-mounted knob optical touch screen provided by the utility model;

[0027] Figure 6 This is a schematic diagram of the coating layer structure of the vehicle-mounted knob optical touch screen provided by the utility model.

[0028] 1. Cover plate; 12. Optical film layer; 121. Coating layer; 122. Micro-nano structure; 13. Adhesive layer; 14. Protective layer; 15. Touch display area; 16. Frame area; 2. Capacitive knob; 21. Double-sided tape; 3. Touch ITO layer; 31. Knob sensing area; 311. Center bonding area; 312. Circular sensing area; 4. FPC; 5. Optical adhesive layer; 6. Display module. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0033] like Figures 1 to 4 As shown, the present application provides a vehicle-mounted knob optical touch screen, characterized in that it comprises: a transparent cover plate 1, provided with a touch display area 15 and a frame area 16, and an optical film layer 12 provided on the surface and an adhesive layer 13 bonded to the optical film layer 12;

[0034] The capacitive knob 2 can generate different capacitance values ​​by rotating and displacing, and is adhered to the touch display area 15 on the surface of the transparent cover plate 1;

[0035] The touch ITO layer 3 is located on the lower surface of the transparent cover plate 1 and is provided with a knob sensing area 31. The knob sensing area 31 can sense the change of the capacitance value of the capacitive knob 2;

[0036] A micro-nano structure 122 formed on the film surface by micro-machining technology is disposed on one side of the optical film layer 12 close to the transparent cover plate 1 . The optical effect generated by the micro-nano structure 122 can form a dynamic or three-dimensional optical texture.

[0037] The present application provides a knob sensing area 31 on the touch ITO layer 3 to sense the change in the capacitance value of the capacitive knob 2, thereby enabling consumers to realize the touch operation function by operating the physical knob, saving space. The physical control knob is combined with the multi-touch operation on the screen to create a beautiful human-computer interface and give users a novel experience. The optical film layer 12 is bonded to the transparent cover plate 1, and electron beam, holographic technology, laser writing, ultra-precision processing technology, electrochemistry and other micro-processing technologies are used on the surface of the optical film layer 12 to form a micro-nano structure 122. When the incident light is irradiated onto the optical film layer 12, the micro-nano structure 122 disperses the incident light to various angles, thereby changing the light absorption rate and reflectivity of the material surface, thereby changing the color of the object surface, obtaining a fine texture effect, and making the decoration more beautiful.

[0038] In this embodiment, the knob sensing area 31 includes an outer circular sensing area 312 and a central bonding area 311 within the circular ring. The central bonding area 311 is bonded to the capacitive knob 2 at a location corresponding to the transparent cover plate 1 .

[0039] Through the above structural design, when the capacitive knob 2 is rotated, the position and gear information of the knob can be sensed by the continuously changing capacitance value to obtain different rotation angles, corresponding to the change of the corresponding capacitance value, and then the knob sensing area 31 receives the change of the capacitance value of the capacitive knob 2.

[0040] In this embodiment, the capacitive knob 2 is bonded to the touch screen via a knob base. A preferred solution is that the capacitive knob 2 is bonded to the touch display area 15 of the transparent cover plate 1 via a double-sided adhesive 21 . Example

[0041] like Figure 5 As shown, the micro-nano structure 122 is in a periodic and continuous undulating shape, and the micro-nano structure 122 is a triangular pyramid.

[0042] The utility model does not particularly limit the form of the texture, for example, it can be a dot-shaped gradient texture, a wave curve type, etc., and those skilled in the art can set it according to needs.

[0043] It should be noted that the processing method of micro-nano structure 122 is a prior art, which refers to the process of converting an image or texture into a micro-nano structure through digital technology. When making an optical texture film, micro-machining technologies such as electron beam, holographic technology, laser writing, ultra-precision machining technology, and electrochemistry can be used to achieve it. These processing technologies can convert digital image or texture information into tiny concave-convex structures, and the size of these structures is usually at the micron or nanometer level. By adjusting the parameters such as the shape, size, and distribution of these structures, different optical effects can be achieved. For example, through electron beam or laser writing technology, tiny pits or protrusions can be created on the film surface. These structures can change the refraction, reflection, and scattering of light, thereby presenting different optical effects. Holographic technology can use the principle of interference to create complex optical textures on the film surface to achieve a more three-dimensional and vivid effect. In short, through these micro-machining technologies, micro-nano structures can be formed on the surface of the optical texture film, thereby achieving a variety of different optical effects.

[0044] In this embodiment, the optical film layer 12 is a PET film or a PVC substrate, which has excellent mechanical properties, such as tensile resistance, impact resistance, fatigue resistance, friction resistance, high hardness, and good light transmittance, and is very suitable for use as an optical texture cover. When its thickness is made ultra-thin, its flexibility is also relatively good. The thickness of the optical film layer 12 is 0.1-0.25 mm, wherein the surface of the optical film layer 12 is provided with a coating layer 121 to enhance the optical performance. For example, the surface is coated with an AG film, an AR film, or an AF film, which can achieve high light transmittance and low reflection performance of the cover, reduce reflection and scattering on the surface of the cover, increase the viewing angle, reduce interference from ambient light, and make the texture of the cover clearer and more transparent with higher transparency.

[0045] Furthermore, the adhesive layer 13 has a thickness of 25-250 μm and is a solid optical adhesive, and its material can be any one of thermosetting adhesive, photosensitive adhesive, acrylic adhesive, silicone adhesive and polyvinyl butyral resin adhesive.

[0046] like Figure 6 As shown, a protective layer 14 is provided on the side of the optical film layer 12 away from the transparent cover plate 1, and the surface hardness of the protective layer 14 is 4H. The material of the protective layer 14 is not specifically limited in this embodiment, and conventional materials in the art can be used. For example, the protective layer 14 can be a silicon oxide film layer. By providing the protective layer 14, the impact resistance of the glass cover plate is improved, the probability of the cover plate breaking is reduced, and the safety of use is improved.

[0047] In a further preferred embodiment, the transparent cover plate 1 is made of glass or a composite plate. Example

[0048] like Figure 2As shown, the vehicle-mounted knob optical touch screen in this embodiment also includes FPC4 and display module 6, the FPC4 is bound to the pin of the touch ITO layer 3, and the display module 6 is attached to the lower surface of the touch ITO layer 3 through the optical adhesive layer 5. The optical adhesive layer 5 is attached to the lower surface of the touch ITO layer 3, so that the touch screen can be firmly connected and have a good display effect. The vehicle-mounted knob optical touch screen can be made more durable and can provide a clear display effect and sensitive touch response.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A vehicle-mounted knob optical touch screen, characterized in that: include: A transparent cover plate (1) provided with a touch display area (15) and a frame area (16), and comprising an optical film layer (12) provided on the surface and an adhesive layer (13) bonded to the optical film layer (12); A capacitive knob (2) capable of generating different capacitance values ​​through rotational displacement, and adhered to a touch display area (15) on the surface of the transparent cover plate (1); A touch ITO layer (3) is located on the lower surface of the transparent cover plate (1) and is provided with a knob sensing area (31), wherein the knob sensing area (31) can sense a change in the capacitance value of the capacitive knob (2); A micro-nano structure (122) formed on the film surface by micro-machining technology is arranged on one side of the optical film layer (12) close to the transparent cover plate (1), and the optical effect generated by the micro-nano structure (122) can form a dynamic or three-dimensional optical texture.

2. The vehicle-mounted knob optical touch screen according to claim 1, characterized in that: The knob sensing area (31) comprises an outer circular ring sensing area (312) and a central bonding area (311) within the circular ring, and the central bonding area (311) is bonded to the capacitive knob (2) at a location corresponding to the transparent cover plate (1).

3. The vehicle-mounted knob optical touch screen according to claim 1, characterized in that: The capacitive knob (2) is bonded to the touch display area (15) of the transparent cover plate (1) by means of double-sided adhesive (21).

4. The vehicle-mounted knob optical touch screen according to claim 1, characterized in that: The micro-nano structure (122) is in a periodically continuous undulating shape, and the micro-nano structure (122) is a triangular pyramid.

5. The vehicle-mounted knob optical touch screen according to claim 1, characterized in that: The optical film layer (12) has a thickness of 0.1-0.25 mm, and a coating layer (121) is provided on the surface of the optical film layer (12) to improve optical performance.

6. The vehicle-mounted knob optical touch screen according to claim 1, characterized in that: The optical film layer (12) is a PET film or a PVC substrate.

7. The vehicle-mounted knob optical touch screen according to claim 1, characterized in that: The adhesive layer (13) has a thickness of 25-250 um, and the adhesive layer (13) is solid optical adhesive.

8. The vehicle-mounted knob optical touch screen according to claim 1, characterized in that: A protective layer (14) is provided on the side of the optical film layer (12) away from the transparent cover plate (1), and the surface hardness of the protective layer (14) is 4H.

9. The vehicle-mounted knob optical touch screen according to claim 1, characterized in that: The transparent cover plate (1) is glass or a composite plate.

10. The vehicle-mounted knob optical touch screen according to claim 1, characterized in that: It also includes an FPC (4) and a display module (6), wherein the FPC (4) is bound to the pins of the touch ITO layer (3), and the display module (6) is adhered to the lower surface of the touch ITO layer (3) via an optical adhesive layer (5).

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