Touch key with decorating and hiding functions

Abstract

The utility model discloses a touch key with decoration and hiding functions, which comprises a shading support plate provided with a first surface and a second surface which are opposite to each other, and a plurality of hollow touch icons; the light-permeable touch decorative membrane is arranged on the first surface of the shading supporting plate and comprises a plurality of touch sensors; the backlight layer is arranged on the second surface of the shading supporting plate and comprises a plurality of luminous sources; the hollowed-out touch icons of the shading supporting plate, the touch sensors of the touch decorative film and the light-emitting sources of the backlight layer correspond to one another in a one-to-one mode. According to the touch key, the touch icon can be hidden when the touch key is not used, so that the appearance consistency is kept.

Description

Technical Field

[0001] This utility model relates to the field of touch control, and in particular to a touch button with decorative concealment function. Background Technology

[0002] Touch-sensitive buttons are devices that provide human-computer interaction between users and electronic devices through touch. With the development of automotive electronics technology and the pursuit of personalization, more and more cars are beginning to use touch-sensitive buttons on the center console to replace traditional mechanical buttons.

[0003] In existing technologies, to ensure the overall appearance consistency of the center console, the touch buttons used on the center console often require a decorative pattern layer, which matches the color and pattern of the center console. However, to identify the touch functions, an identification pattern needs to be created on top of the decorative pattern layer, which disrupts the appearance consistency of the decorative pattern layer and the center console. Utility Model Content

[0004] To address the shortcomings of the prior art, this invention provides a touch button that can hide the touch icon when not in use to maintain a consistent appearance.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution:

[0006] A touch button with decorative concealment function includes:

[0007] The light-shielding support plate has a first surface and a second surface facing each other, and has several hollowed-out touch icons.

[0008] A light-transmitting touch-sensitive decorative film is disposed on the first surface of the light-shielding support plate and includes several touch sensors;

[0009] A backlight layer is disposed on the second surface of the light-shielding support plate and includes a plurality of light sources;

[0010] The hollowed-out touch icons on the light-shielding support plate, the touch sensor on the touch decorative film, and the light source of the backlight layer correspond to each other one by one.

[0011] Furthermore, the touch decorative film includes a flexible substrate layer, a decorative pattern layer, a touch functional layer, and an adhesive layer. The touch functional layer and the adhesive layer are sequentially disposed on the side surface of the flexible substrate layer facing the light-shielding support plate, and the decorative pattern layer is disposed on the side surface of the flexible substrate layer facing away from the light-shielding support plate. The touch sensor is located in the touch functional layer.

[0012] Furthermore, the flexible substrate layer is a PET film layer, a PI film layer, or a PVC film layer.

[0013] Furthermore, the touch function layer is a silver paste electrode layer.

[0014] Furthermore, the adhesive layer is an OCA optical adhesive layer.

[0015] Furthermore, the touch-sensitive decorative film also includes a surface-hardening layer, which is disposed on the side surface of the decorative pattern layer facing away from the flexible substrate layer.

[0016] Furthermore, the surface hardening layer is a diamond-like carbon coating.

[0017] Furthermore, the light source is an LED light source.

[0018] Furthermore, the light-shielding support plate is a plastic plate.

[0019] Furthermore, the light-shielding support plate has a flat area and a bent area, and the touch sensor of the touch decorative film is located in the flat area of ​​the light-shielding support plate.

[0020] This utility model has the following beneficial effects: The touch button of this patent consists of three parts: a light-shielding support plate, a touch decorative film, and a backlight layer. The light-shielding support plate is used to fix and support the touch decorative film and the backlight layer, and at the same time, it provides light-shielding treatment for the area outside the hollowed-out touch icon; the touch decorative film is used to provide decorative patterns and touch operation functions, while the backlight layer provides backlight for the hollowed-out touch icon; when the touch sensors in the touch decorative film are not touched by the user, the light sources in the backlight layer are in an off state, and the light sources in the light-shielding support plate are in an off state. The empty touch icon is not illuminated by the backlight layer, and the entire appearance of the touch button displays the decorative pattern of the touch decorative film without any touch icon appearing. When a user touches a touch sensor in the touch decorative film, the light source in the backlight layer corresponding to the touched touch sensor is illuminated, and the hollow touch icon in the light-shielding support plate corresponding to the touched touch sensor is illuminated by the backlight layer. The touch button then displays an illuminated touch icon at the touched touch sensor, achieving the purpose of hiding the touch icon when not in use to maintain a consistent appearance. Attached Figure Description

[0021] Figure 1 A schematic diagram of the stacked structure of the touch buttons provided by this utility model.

[0022] Figure 2 A three-dimensional structural diagram of the touch button provided by this utility model.

[0023] Figure 3 A schematic diagram of the stacked structure of the touch decorative film in the touch button provided by this utility model.

[0024] Figure 4 A schematic diagram of the stacked structure of another touch button provided by this utility model. Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings. Throughout the drawings, the same or similar reference numerals denote 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 intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0029] like Figure 1 As shown, a touch button with decorative concealment function includes:

[0030] The light-shielding support plate 100 has a first surface and a second surface opposite to each other, and has a plurality of hollowed-out touch icons 101.

[0031] A light-transmitting touch-sensitive decorative film 200 is disposed on the first surface of the light-shielding support plate 100 and includes a plurality of touch sensors 201.

[0032] A backlight layer 300 is disposed on the second surface of the light-shielding support plate 100 and includes a plurality of light sources 301;

[0033] The hollowed-out touch icon 101 of the light-shielding support plate 100, the touch sensor 201 of the touch decorative film 200, and the light source 301 of the backlight layer 300 correspond to each other.

[0034] The touch button of this patent consists of three parts: a light-shielding support plate 100, a touch decorative film 200, and a backlight layer 300. The light-shielding support plate 100 is used to fix and support the touch decorative film 200 and the backlight layer 300, and at the same time, it provides light-shielding treatment for the area outside the hollowed-out touch icon 101. The touch decorative film 200 is used to provide decorative patterns and touch operation functions, while the backlight layer 300 provides backlight for the hollowed-out touch icon 101. When the touch sensors 201 in the touch decorative film 200 are not touched by the user, the light sources 301 in the backlight layer 300 are in an off state, and the hollowed-out touch icons 101 in the light-shielding support plate 100 are in an off state. When the touch button is not illuminated by the backlight layer 300, its entire appearance displays the decorative pattern of the touch decorative film 200, without any touch icon 101' appearing. When a user touches a touch sensor 201 in the touch decorative film 200, the light source 301 in the backlight layer 300 corresponding to the touched touch sensor 201 is illuminated, and the hollowed-out touch icon 101 in the light-shielding support plate 100 corresponding to the touched touch sensor 201 is illuminated by the backlight layer 300. The touch button then displays an illuminated touch icon 101' at the touched touch sensor 201, achieving the purpose of hiding the touch icon when not in use to maintain a consistent appearance.

[0035] The hollowed-out touch icon 101 may be, but is not limited to, a power switch icon, a network icon, a back operation icon, etc.

[0036] In this embodiment, the light-shielding support plate 100 can be, but is not limited to, a plastic plate. It can be a black plastic plate to meet the light-shielding requirements, or it can be a white plastic plate. When the light-shielding support plate 100 is a white plastic plate, the light-shielding support plate 100 needs to reach a certain thickness to meet the light-shielding requirements.

[0037] The touch-sensitive decorative film 200 and the backlight layer 300 can be directly glued to the light-shielding support plate 100.

[0038] Preferred, such as Figure 2 As shown, the light-shielding support plate 100 has a flat area 102 and a bent area 103, the flat area 102 and the bent area 103 are connected, and the touch decorative film 200 covers both the flat area 102 and the bent area 103 of the light-shielding support plate 100; the touch sensor 201 of the touch decorative film 200 is located in the flat area 102 of the light-shielding support plate 100; the backlight layer 300 covers only the flat area 102 of the light-shielding support plate 100 and corresponds to the touch sensor 201.

[0039] like Figure 3 and 4 As shown, the touch decorative film 200 includes a flexible substrate layer 202, a decorative pattern layer 203, a touch functional layer 204, and an adhesive layer 205. The touch functional layer 204 and the adhesive layer 205 are sequentially disposed on the side surface of the flexible substrate layer 202 facing the light-shielding support plate 100, and the decorative pattern layer 203 is disposed on the side surface of the flexible substrate layer 202 facing away from the light-shielding support plate 100. The touch sensor 201 is located in the touch functional layer 204.

[0040] The touch decorative film 200 uses a flexible substrate layer 202, which makes the touch decorative film 200 flexible, so as to achieve a certain degree of stretching and bending, and can better fit with the bending area 103 of the light-shielding support plate 100.

[0041] In this embodiment, the flexible substrate layer 202 may be, but is not limited to, a PET film layer, a PI film layer, or a PVC film layer.

[0042] The decorative pattern layer 203 can be formed on the flexible substrate layer 202 by sputtering, vapor deposition or screen printing to present the decorative pattern required for the touch button. Its thickness should not be too large to avoid affecting light transmittance. The thickness of the decorative pattern layer 203 formed by screen printing is between 15μm and 20μm, and the thickness of the decorative pattern layer 203 formed by sputtering or vapor deposition is no more than 1μm. Its color and pattern should be as light as possible, such as beige or light blue, and its light transmittance is greater than 50% and less than 70%.

[0043] The touch function layer 204 is preferably a silver paste electrode layer. Silver paste is soft and has excellent extensibility. Using silver paste as the electrode material, the touch electrodes and peripheral traces of the touch sensor 201 are fabricated. When the peripheral traces pass through the bending area 103 of the light-shielding support plate 100, they can bend to a large extent without breaking. This allows them to cooperate with the flexible substrate layer 202 and better fit the curved surface on the light-shielding support plate 100.

[0044] The adhesive layer 205 is preferably an OCA optical adhesive layer.

[0045] The OCA optical adhesive is a double-sided adhesive tape with a substrate-free transparency of over 90%. Its main material is optical acrylic adhesive, and it features clarity, high light transmittance, high adhesion, high weather resistance, water resistance, high temperature resistance, and UV resistance. Specifically, if the touch sensor 201 is a resistive sensor, the OCA optical adhesive can be 50µm or 25µm thick; if the touch sensor 201 is a capacitive sensor, the OCA optical adhesive can be 100µm, 175µm, 200µm, or 250µm thick.

[0046] The touch-sensitive decorative film 200 further includes a surface hardening layer 205, which is disposed on the side surface of the decorative pattern layer 203 facing away from the flexible substrate layer 202.

[0047] The surface hardening layer 205 serves to increase the surface hardness of the decorative pattern layer 203, thereby reducing the risk of the decorative pattern layer 203 being scratched by hard objects.

[0048] The surface hardening layer 205 is preferably a diamond-like carbon coating with a thickness between 3 μm and 7 μm.

[0049] Diamond-like carbon (DLC) coatings are amorphous thin films whose composition and structure resemble diamond, but they are not true diamond. Due to their excellent properties such as high hardness, high wear resistance, and high chemical stability, DLC coatings have wide applications in many fields. There are various methods for preparing DLC ​​coatings, including vacuum evaporation, sputtering, and chemical vapor deposition. During the preparation process, the selection of the carbon source and the optimization of process parameters are crucial for obtaining high-quality DLC coatings. The composition of DLC coatings can vary, with hydrogen-free DLC (aC) and hydrogen-containing DLC ​​(aC:H) being the most common. Hydrogen-containing DLC, also known as α-C:H, is widely used in the modification of solid surfaces in friction pairs due to its excellent friction-reducing and wear-resistant properties. DLC coatings possess a series of excellent properties, such as high hardness, high wear resistance, high chemical stability, and good optical transmittance.

[0050] The light source 301 is preferably an LED light source.

[0051] like Figure 4 As shown, the light source 301 is mounted on a rigid circuit board 302 and is bonded to the light-shielding support plate 100 by the rigid circuit board 302 and another OCA optical adhesive 303. The rigid circuit board 302 is connected to a flexible circuit board (not shown in the figure), and the touch function layer 204 is also bound to a flexible circuit board (not shown in the figure). The two flexible circuit boards are connected to the same external controller (not shown in the figure). When the controller receives the touch signal from the touch function layer 204, it outputs a driving signal to the light source 301 corresponding to the touched touch sensor 201 to drive the corresponding light source 301 to light up the corresponding touch icon.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present utility model, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the present utility model.

Claims

1. A touch button with decorative hidden function, It is characterized in that include: A light-shielding support plate having a first surface and a second surface opposite to each other and provided with a plurality of hollow touch icons; A light-transmissive touch decorative film is disposed on the first surface of the light-shielding support plate and includes a plurality of touch sensors; A backlight layer, disposed on the second surface of the light-shielding support plate, comprising a plurality of light sources; The hollow touch icons of the light-shielding support plate, the touch sensors of the touch decorative film, and the light sources of the backlight layer correspond to each other one by one.

2. The touch key with decorative hiding function according to claim 1, It is characterized in that The touch decorative film includes a flexible substrate layer, a decorative pattern layer, a touch function layer and an adhesive layer. The touch function layer and the adhesive layer are sequentially arranged on a surface of the flexible substrate layer facing the shading support plate, and the decorative pattern layer is arranged on a surface of the flexible substrate layer facing away from the shading support plate; the touch sensor is located in the touch function layer.

3. The touch key with decorative hiding function according to claim 2, It is characterized in that The flexible substrate layer is a PET film layer, a PI film layer or a PVC film layer.

4. The touch key with decorative hiding function according to claim 2, It is characterized in that The touch function layer is a silver paste electrode layer.

5. The touch key with decorative hiding function according to claim 2, It is characterized in that The adhesive layer is an OCA optical adhesive layer.

6. The touch key with decorative hiding function according to claim 2, It is characterized in that The touch decorative film further comprises a surface hardening layer, and the surface hardening layer is arranged on a surface of the decorative pattern layer on a side facing away from the flexible substrate layer.

7. The touch key with decorative hiding function according to claim 6, It is characterized in that The surface hardening layer is a diamond-like carbon coating.

8. The touch key with decorative hiding function according to claim 1, It is characterized in that The light source is an LED light source.

9. The touch key with decorative hiding function according to claim 1, It is characterized in that The shading support plate is a plastic plate.

10. The touch key with decorative hiding function according to claim 1, It is characterized in that The light-shielding support plate has a flat area and a bent area, and the touch sensor of the touch decorative film is located in the flat area of ​​the light-shielding support plate.

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