Touch key

Abstract

The utility model discloses a touch key, which comprises a transparent cover plate with light transmission performance; the black ink layer is arranged on the back surface of the transparent cover plate, and a light-transmitting pattern is formed on the black ink layer; the LED light source assembly is used for emitting and diffusing light; the touch key further comprises a silicon dioxide layer and a transparent conducting layer. The silicon dioxide layer is arranged between the black ink layer and the LED light source assembly; and the transparent conductive layer is close to the light-transmitting pattern and is arranged between the black ink layer and the silicon dioxide layer. According to the technical scheme, the light-emitting effect of the light-transmitting pattern is optimized, and the durability of the touch key is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to touch control technical field especially relates to a touch button. BACKGROUND

[0002] In modern electronic equipment, capacitive touch button is gradually replacing traditional mechanical button because of its fast response speed, easy cleaning and no mechanical wear and tear. With the continuous improvement of the demand for thin and high light transmission of electronic equipment, the design and manufacturing of touch button face new challenges. Among them, how to realize thin design while ensuring the durability of touch button, and optimize the light transmission effect in touch button manufacturing, has become a key problem. And to improve user experience, the light transmission effect of touch button is particularly important. Suitable light transmission not only can improve the appearance of the device, but also can improve the optical display effect.

[0003] In summary, the design and manufacturing of capacitive touch button not only need to break through the structure of the touch layer, but also need to optimize the application and assembly of the optical plate to meet the dual needs of durability and suitable light transmission effect of modern electronic equipment. SUMMARY

[0004] The utility model discloses a touch button, which aims to optimize the light transmission pattern light-emitting effect and improve the durability of the touch button.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] A touch button comprises:

[0007] A transparent cover plate has light transmission;

[0008] A black ink layer is arranged on the back of the transparent cover plate, and a light transmission pattern is formed on the black ink layer;

[0009] An LED light source assembly is used to emit and diffuse light;

[0010] The touch button further comprises a silicon dioxide layer and a transparent conductive layer.

[0011] The silicon dioxide layer is arranged between the black ink layer and the LED light source assembly.

[0012] The transparent conductive layer is arranged between the black ink layer and the silicon dioxide layer and is close to the light transmission pattern.

[0013] In an embodiment, the transparent conductive layer is a graphene coating.

[0014] In an embodiment, an optical glue is further included and disposed between the silica layer and the transparent conductive layer.

[0015] In an embodiment, a titanium dioxide layer is further included and disposed on the back of the silica layer.

[0016] In an embodiment, an adhesive glue is further included and disposed between the titanium dioxide layer and the LED light source assembly.

[0017] In an embodiment, a semi-transparent ink is disposed within the light-transmitting pattern.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The technical scheme of the utility model realizes optimization of the light-transmitting pattern light-emitting effect and improves the durability of the touch button by setting the transparent cover plate, the black ink layer, the silica layer and the LED light source assembly. Specifically, the transparent cover plate is the outermost layer of the touch button and has light-transmitting property, which can allow light to pass through. The transparent cover plate is usually made of glass or transparent plastic, which can protect the internal structure and allow the user to directly interact with the touch button. The black ink layer is located on the back of the transparent cover plate, and the black ink layer is mainly used for light shielding and only leaves a path for light to pass through in a specific area (the light-transmitting pattern). The outline of the light-transmitting pattern is formed by the black ink layer, which ensures that only the predetermined pattern area can transmit light and provides visual feedback for the user. In the embodiment, the silica layer is attached to the back of the black ink layer. The silica layer has the functions of scattering light or protecting the internal structure. More specifically, the silica material in the silica layer is a material with low refractive index, which can effectively reduce light reflection in the lighting system and thus improve the light transmission efficiency, thereby ensuring the light-transmitting pattern light-emitting effect. Moreover, the silica layer has good chemical stability and thermal stability, thereby ensuring the durability and reliability of the physical properties and chemical properties of the black ink layer. Furthermore, the silica layer can also protect the black ink layer from scratches, contamination or other mechanical damage, thereby prolonging the service life of the touch button and improving the durability of the touch button. Furthermore, the transparent conductive layer disposed on the back of the black ink layer can improve the sensitivity of the touch button. In the embodiment, the LED light source assembly is installed inside the touch button and disposed on the back of the silica layer, which is used for emitting and scattering light. The LED light source assembly can initially make the light uniformly distributed so as to make the light-transmitting pattern area avoid bright spots and shadows as much as possible. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] The structure, proportion, size and the like shown in the drawings of the present application are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation conditions of the present application. Therefore, any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes of the present application, should still fall within the scope of the technical content disclosed by the present application.

[0022] Figure 1 The structural schematic diagram of the embodiment of the technical scheme of the present application is shown in the figure.

[0023] Illustration: 10, touch key;

[0024] 11, transparent cover plate 12, black ink layer; 12a, light transmission pattern; 121, semi-transparent ink;

[0025] 13, silicon dioxide layer; 14, LED light source assembly;

[0026] 15, transparent conductive layer; 16, optical glue;

[0027] 17, titanium dioxide layer; 18, adhesive. DETAILED DESCRIPTION

[0028] In order to make the technical purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0029] In the description of the utility model, need understanding is, the term "upper", "lower", "top", "bottom", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only is for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element that the indicated must have a particular orientation, with a particular orientation structure and operation, therefore can not be understood as the restriction of the utility model. It needs to be explained that when a component is considered to be "connected" another component, it can be directly connected to another component or there can be a component arranged in the middle.

[0030] The technical scheme of the utility model is further illustrated below by means of specific embodiments and in combination with the drawings.

[0031] The utility model embodiment provides a kind of touch key 10.

[0032] Please refer to Figure 1 The utility model technical scheme proposes a kind of touch key 10, it includes:

[0033] Transparent cover plate 11, with light transmission property;

[0034] Black ink layer 12, is located in the back of the transparent cover plate 11, and light transmission pattern 12a is formed in black ink layer 12;

[0035] LED light source component 14 is used to emit and diffuse light;

[0036] Wherein, the touch key 10 further includes silica layer 13 and transparent conductive layer 15;Silica layer 13 is located between black ink layer 12 and the LED light source component 14;Transparent conductive layer 15 is close to the light transmission pattern 12a, and is located between black ink layer 12 and silica layer 13.

[0037] It can be understood that the technical scheme of the utility model realizes the optimization of the light-emitting effect of the light-transmitting pattern 12a and improves the durability of the touch button 10 by setting the transparent cover plate 11, the black ink layer 12, the silicon dioxide layer 13 and the LED light source assembly 14. Specifically, the transparent cover plate 11 is the outermost layer of the touch button 10, has light transmission and can allow light to pass through. The transparent cover plate 11 is usually made of glass or transparent plastic, which not only protects the internal structure but also allows the user to directly interact with the touch button 10. The black ink layer 12 is located on the back of the transparent cover plate 11, and the black ink layer 12 is mainly used for shading and only leaves a path for light to pass through in a specific area (the light-transmitting pattern 12a). The outline of the light-transmitting pattern 12a is formed by the black ink layer 12, which ensures that only the predetermined pattern area can transmit light and provides visual feedback for the user. In this embodiment, the silicon dioxide layer 13 is attached to the back of the black ink layer 12. The silicon dioxide layer 13 has the functions of scattering light or protecting the internal structure. More specifically, the silicon dioxide material in the silicon dioxide layer 13 is a material with low refractive index, which can effectively reduce light reflection in the lighting system, thereby improving the light transmission efficiency and ensuring the light-emitting effect of the light-transmitting pattern 12a; and the silicon dioxide layer 13 has good chemical stability and thermal stability, thereby ensuring the durability and reliability of the physical properties and chemical properties of the black ink layer 12; further, the silicon dioxide layer 13 can also play a mechanical protection role for the black ink layer 12, preventing scratches, contamination or other mechanical damage, thereby prolonging the service life of the touch button 10 and improving the durability of the touch button 10. Further, the transparent conductive layer 15 arranged on the back of the black ink layer 12 can improve the sensitivity of the touch button 10. In this embodiment, the LED light source assembly 14 is installed inside the touch button 10 and arranged on the back of the silicon dioxide layer 13, which is used for emitting and scattering light. The LED light source assembly 14 can initially make the light uniformly distributed to make the light-transmitting pattern 12a area avoid bright spots and shadows as much as possible.

[0038] Optionally, the material of the transparent conductive layer 15 can be indium tin oxide, zinc aluminum oxide, zinc gallium oxide, metal mesh, etc., and the specific material of the transparent conductive layer 15 is not limited here.

[0039] It should be further pointed out that the specific structure of the transparent conductive layer 15 can be transparent, semi-transparent or mesh structure.

[0040] It should be further pointed out that the transparent conductive layer 15 usually needs to be connected to a flexible circuit board to realize the conduction of touch signals.

[0041] In a specific embodiment, the transparent conductive layer 15 is a graphene coating layer.

[0042] Optionally, the LED light source assembly 14 is provided with an optical plate for light guiding to achieve uniform light.

[0043] Please continue to refer to Figure 1 In the specific embodiment of the utility model,

[0044] Further, the touch key 10 further comprises an optical adhesive 16, which is arranged between the silicon dioxide layer 17 and the transparent conductive layer 15.

[0045] It can be understood that the optical adhesive 16 is mainly arranged for protecting the transparent conductive layer 15 to avoid thermal decomposition in the adhesion process of the silicon dioxide layer 13.

[0046] Optionally, the optical adhesive 16 can be ultraviolet curing adhesive, epoxy optical adhesive 16, polyurethane optical adhesive 16, silicone optical adhesive 16, etc.

[0047] In a specific embodiment, the touch key 10 further comprises a titanium dioxide layer 17 arranged on the back of the silicon dioxide layer 13. The titanium dioxide layer 17 is used for reflecting light to further improve the uniformity and brightness of light in the light transmission pattern 12a area.

[0048] It should be noted that in the embodiment, the titanium dioxide layer 17 is used as a material with high refractive index for reflecting light, and the silicon dioxide layer 13 is used as a material with low refractive index for transmitting light. Thus, the uniformity of light is further improved, the light emitting effect of the light emitting pattern is optimized, and the user experience is improved.

[0049] Further, the touch key 10 further comprises an adhesive 18 arranged between the titanium dioxide layer 17 and the LED light source assembly 14.

[0050] It can be understood that the adhesive 18 is mainly arranged for realizing the stability of mechanical connection of the components of the touch key 10 and reducing light loss. It can also be understood that the adhesive 18 has good high-temperature resistance, thereby ensuring the stability of the structure layers in a high-temperature working environment.

[0051] Optionally, when the LED light source assembly 14 cannot meet the light diffusion requirement, the light transmission pattern 12a is provided with a semi-transparent ink 121 for further optimizing the light emitting effect of the light transmission pattern 12a of the touch key 10 and avoiding too bright light.

[0052] The above-described above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A touch key (10) characterized in that, The application relates to a touch button (10) comprising: a transparent cover plate (11) having light transmission; a black ink layer (12) arranged on the back of the transparent cover plate (11) and having a light transmission pattern (12a) formed thereon; an LED light source assembly (14) for emitting and diffusing light; wherein the touch button (10) further comprises a silicon dioxide layer (13) and a transparent conductive layer (15); the silicon dioxide layer (13) is arranged between the black ink layer (12) and the LED light source assembly (14); the transparent conductive layer (15) is arranged between the black ink layer (12) and the silicon dioxide layer (13) and is close to the light transmission pattern (12a).

2. The touch key (10) according to claim 1, characterized in that The transparent conductive layer (15) is a graphene coating.

3. The touch key (10) according to claim 2, characterized in that The touch button (10) further comprises optical glue (16) arranged between the silicon dioxide layer (13) and the transparent conductive layer (15).

4. The touch key (10) according to claim 3, characterized in that The touch button (10) further comprises a titanium dioxide layer (17) arranged on the back of the silicon dioxide layer (13).

5. The touch key (10) according to claim 4, characterized in that The touch button (10) further comprises adhesive glue (18) arranged between the titanium dioxide layer (17) and the LED light source assembly (14).

6. The touch key (10) according to claim 2, characterized in that The light transmission pattern (12a) is provided with semi-transparent ink (121).

Images