Low-cost key cover plate
By setting specific inks and conductive materials on the glass substrate of electronic display products, combined with hollow parts and key touch function patterns, a low-cost key cover is designed, which solves the problem of high cost of existing products, and realizes efficient touch function and cost-reducing effect.
Patent Information
- Application Number
- CN202421263186.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing electronic display products with button functions are relatively expensive, mainly due to the need for additional accessories such as FPC, glass sensor or button film.
A low-cost button cover is designed, and the touch function is realized without additional accessories by setting black ink, translucent ink, shade ink, conductive silver paste, carbon paste and diffusion film on the glass substrate.
This design reduces product costs, avoids the use of additional accessories, improves the competitiveness of the product, and achieves the normal operation of touch functions.
Smart Images
Figure CN222672870U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a key cover plate, and more specifically to a low-cost key cover plate. Background Art
[0002] Among the electronic display products currently on the market, there are more and more electronic display products with button functions. In order to seize the market, companies continue to innovate, reduce production costs, and make their products more competitive in order to seize most of the market share. Traditional touch button covers usually require additional accessories, such as FPC, glass sensor or button film, etc. This structure leads to higher product costs and is not conducive to improving product competitiveness. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to provide a key cover plate without additional accessories, so as to reduce the cost of the product and improve the competitiveness of the product.
[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:
[0005] To solve the above technical problems, the utility model provides a low-cost key cover plate, which includes a glass substrate, black ink, translucent ink, shading ink, conductive silver paste, carbon paste and a diffusion film, wherein the black ink is arranged on the lower surface of the glass substrate, and a translucent hollow portion is arranged on the black ink; the translucent ink is arranged at the hollow portion; the shading ink is arranged on the lower surface of the black ink, and the shading ink avoids the translucent ink; the conductive silver paste includes a key touch function pattern located below the hollow portion and a GND surrounding the key touch function pattern; the carbon paste is arranged below the conductive silver paste and corresponds to the position of the GND electrode and the key touch function pattern and is electrically connected thereto; the diffusion film is fixed to the lower surface of the conductive silver paste by double-sided adhesive, the diffusion film avoids the carbon paste, and the double-sided adhesive avoids the carbon paste and the hollow portion.
[0006] As a preferred implementation of the low-cost key cover provided by the utility model, the material of the light-transmitting ink is white light-transmitting ink or semi-transmitting black ink.
[0007] As a preferred implementation of the low-cost key cover provided by the utility model, the key touch function pattern avoids the hollow portion.
[0008] As a preferred implementation of the low-cost key cover provided by the utility model, the outer shape of the hollow portion is the outer shape of Arabic numerals and the outer shape of control icons.
[0009] As a preferred implementation of the low-cost key cover provided by the utility model, LED lights are arranged below the diffusion film, and the number and positions of the LED lights correspond to the number and positions of the avoidance portions.
[0010] As a preferred implementation of the low-cost key cover provided by the utility model, the black ink is provided with an avoidance portion at the outer edge of the hollow portion.
[0011] As a preferred implementation of the low-cost key cover provided by the utility model, non-black ink is provided at the avoidance portion.
[0012] As a preferred implementation of the low-cost key cover provided by the utility model, the color of the non-black ink is red.
[0013] As a preferred implementation of the low-cost key cover provided by the utility model, the avoidance portion surrounds the hollow portion.
[0014] As a preferred implementation of the low-cost key cover provided by the utility model, the avoidance portion is circular in shape.
[0015] The utility model has the following beneficial effects:
[0016] Since a key touch function pattern is arranged in the hollow part, and a GND is arranged around the key touch function pattern, the circuit signal is connected to the ejector pin of the whole machine by utilizing the self-capacitance principle through carbon paste, so as to realize the touch function. There is no need to add additional accessories, such as FPC, glass sensor or key film, etc. The product cost of this structure is relatively low, which is conducive to improving the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] 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.
[0018] Figure 1 A schematic diagram of a stacking structure of a low-cost key cover provided by the utility model.
[0019] Figure 2 for Figure 1 Magnified view of point A in .
[0020] Figure 3 for Figure 1 Exploded view of the upper part of the .
[0021] Figure 4 for Figure 1 Exploded view of the lower half of the .
[0022] Description of Figure Numbers:
[0023] Glass substrate 1; black ink 2; light-transmitting ink 3; light-shielding ink 4; conductive silver paste 5; carbon paste 6; diffusion film 7; hollow portion 21; key touch function pattern 51; GND 52; double-sided adhesive 8; avoidance portion 22; non-black ink 9. DETAILED DESCRIPTION
[0024] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0026] 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 the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0027] The utility model provides a low-cost key cover plate, which includes a glass substrate, black ink, translucent ink, shading ink, conductive silver paste, carbon paste and a diffusion film, wherein the black ink is arranged on the lower surface of the glass substrate, and a translucent hollow portion is arranged on the black ink; the translucent ink is arranged at the hollow portion; the shading ink is arranged on the lower surface of the black ink, and the shading ink avoids the translucent ink; the conductive silver paste includes a key touch function pattern located below the hollow portion and a GND surrounding the key touch function pattern; the carbon paste is arranged below the conductive silver paste and corresponds to the position of the GND electrode and the key touch function pattern and is electrically connected thereto; the diffusion film is fixed to the lower surface of the conductive silver paste by double-sided adhesive, the diffusion film avoids the carbon paste, and the double-sided adhesive avoids the carbon paste and the hollow portion.
[0028] Since a key touch function pattern is arranged in the hollow part, and a GND is arranged around the key touch function pattern, the circuit signal is connected to the ejector pin of the whole machine by utilizing the self-capacitance principle through carbon paste, so as to realize the touch function. There is no need to add additional accessories, such as FPC, glass sensor or key film, etc. The product cost of this structure is relatively low, which is conducive to improving the competitiveness of the product.
[0029] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and 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 with 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 limitations on the present invention.
[0030] See also Figures 1 to 4, a low-cost key cover provided by the utility model comprises a glass substrate 1, black ink 2, light-transmitting ink 3, light-shielding ink 4, conductive silver paste 5, carbon paste 6 and a diffusion film 7, wherein the black ink 2 is arranged on the lower surface of the glass substrate 1, and a plurality of light-transmitting hollow portions 21 are arranged on the black ink 2; the light-transmitting ink 3 is arranged at the hollow portions 21, and the number and position of the light-transmitting ink 3 correspond to the number and position of the hollow portions 21; the light-shielding ink 4 is arranged on the lower surface of the black ink 2, and the light-shielding ink 4 avoids the light-transmitting ink 3; the conductive silver paste 5 comprises a key touch function pattern 51 and a ring paste 52 located below the hollow portions 21; GND52 around the key touch function pattern 51, the number and position of the key touch function pattern 51 correspond to the number and position of the hollow part 21; the carbon paste 6 is arranged below the conductive silver paste 5 and corresponds to the electrode of GND52 and the position of the key touch function pattern 51 and is electrically connected thereto. In this embodiment, there are 10 key touch function patterns 51 and 1 GND52 electrode, so there are 11 carbon pastes 6; the diffusion film 7 is fixed to the lower surface of the conductive silver paste 5 by double-sided adhesive 8, the diffusion film 7 avoids the carbon paste 6, and the double-sided adhesive 8 avoids the carbon paste 6 and the hollow part 21, so that the carbon paste 6 is exposed and connected to the ejector pin of the whole machine. Since the key touch function pattern 51 is arranged at the hollow part 21, the key touch function pattern 51 is surrounded by GND52, and the carbon paste 6 is connected to the ejector pin of the whole machine through the self-capacitance principle to connect the circuit signal to realize the touch function, and it does not need to add additional accessories, such as FPC, glass sensor or key film, etc. The product cost of this structure is low, which is conducive to improving the competitiveness of the product.
[0031] Furthermore, the material of the light-transmitting ink 3 is white light-transmitting ink 3 or semi-transmitting black ink 2 .
[0032] Furthermore, the key touch function pattern 51 avoids the hollow portion 21 .
[0033] Furthermore, the outer shape of the hollow portion 21 is the outer shape of Arabic numerals and the outer shape of a control icon.
[0034] Furthermore, LED lights are arranged below the diffusion film 7 , and the number and positions of the LED lights correspond to the number and positions of the avoidance portions 22 . When a certain display pattern needs to be lit, the LED lights at the corresponding positions can be lit.
[0035] See also Figures 1 to 4 As a further optimization scheme of Example 1, in this embodiment, the black ink 2 is provided with an avoidance portion 22 at the outer edge of the hollow portion 21, and non-black ink 9 is provided at the avoidance portion 22 to enrich the display effect of the edge of the avoidance portion 22.
[0036] Furthermore, the color of the non-black ink 9 is red, the avoidance portion 22 surrounds the hollow portion 21 , and the shape of the avoidance portion 22 is circular, so as to further enrich the display effect of the edge of the avoidance portion 22 .
[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0038] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.
Claims
1. A low-cost key cover, characterized in that: It includes: Glass substrate; Black ink, which is disposed on the lower surface of the glass substrate, and a light-transmissive hollow portion is disposed on the black ink; Light-transmitting ink, which is arranged at the hollow portion; A light-shielding ink, which is disposed on the lower surface of the black ink, and the light-shielding ink avoids the light-transmitting ink; Conductive silver paste, comprising a key touch function pattern located below the hollow portion and a GND surrounding the key touch function pattern; A carbon paste is disposed below the conductive silver paste and corresponds to the position of the GND electrode and the key touch function pattern and is electrically connected thereto; The diffusion film is fixed to the lower surface of the conductive silver paste by double-sided adhesive, the diffusion film avoids the carbon paste, and the double-sided adhesive avoids the carbon paste and the hollow part.
2. The low-cost key cover according to claim 1, characterized in that: The material of the light-transmitting ink is white light-transmitting ink or semi-transmitting black ink.
3. The low-cost key cover according to claim 1, characterized in that: The button touch function pattern avoids the hollow portion.
4. The low-cost key cover according to claim 1, characterized in that: The outer shape of the hollow portion is the outer shape of Arabic numerals and the outer shape of a control icon.
5. The low-cost key cover according to claim 1, characterized in that: The black ink is provided with an escape portion at the outer edge of the hollow portion.
6. The low-cost key cover according to claim 5, characterized in that: LED lights are arranged below the diffusion film, and the number and positions of the LED lights correspond to the number and positions of the avoidance portions.
7. The low-cost key cover according to claim 6, characterized in that: The avoidance portion is provided with non-black ink.
8. The low-cost key cover according to claim 7, characterized in that: The color of the non-black ink is red.
9. The low-cost key cover according to claim 6, characterized in that: The avoidance portion surrounds the hollow portion.
10. The low-cost key cover according to claim 6, characterized in that: The avoidance portion is circular in shape.