Membrane switch with LED screen
By introducing an LED screen and a reflective layer into the membrane switch, the problem of difficult identification of button markings in low light conditions is solved, achieving the effect of clearly identifying the button function in dim environments.
Patent Information
- Application Number
- CN202422886103.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-26
AI Technical Summary
When using existing membrane switches in low-light conditions, users have difficulty seeing the button markings on the panel and cannot determine the function of the buttons.
An LED screen is introduced into the membrane switch. The LED beads in the marking slot emit light and the light is reflected by the reflective layer to ensure that the light is bright and the text in the marking slot is visible in a dark environment.
In dimly lit environments, users can clearly identify button labels and understand their functions, thus improving the user experience.
Smart Images
Figure CN223513839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of membrane switch technology, and in particular to a membrane switch with an LED screen. Background Technology
[0002] Currently, membrane switches are integrated operating systems combining button functions, indicating elements, and instrument panels. They consist of four parts: the panel, upper circuit, isolation layer, and lower circuit. When the membrane switch is pressed, the contacts in the upper circuit deform downwards, making contact with the plates in the lower circuit to conduct electricity. When the finger is released, the contacts in the upper circuit rebound, breaking the circuit and triggering a signal. Membrane switches have a robust structure, an attractive appearance, and excellent sealing. They are moisture-proof and have a long service life. They are widely used in electronic communications, electronic measurement instruments, industrial control, medical equipment, the automotive industry, smart toys, and home appliances.
[0003] Current membrane switches are used in low-light conditions where users cannot see the button markings on the panel, cannot determine the function of the button, and cannot use it. Utility Model Content
[0004] The main objective of this invention is to provide a membrane switch with an LED screen, which can effectively solve the problems in the background technology.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a membrane switch with an LED screen, comprising a circuit layer assembly, wherein a surface layer assembly is disposed on the upper part of the circuit layer assembly;
[0006] The surface layer assembly includes a reflective layer, a light-transmitting layer, a light-shielding layer, and a marking groove. The light-transmitting layer contains LED beads, the upper part of the reflective layer is located at the lower part of the light-transmitting layer, the marking groove is located on the left side of the light-shielding layer, the lower part of the light-shielding layer is located at the upper part of the light-transmitting layer, and the marking groove contains a light-transmitting film.
[0007] Preferably, a display screen slot is provided on the right side of the light-shielding layer, and an anti-blue light film is provided inside the display screen slot.
[0008] Preferably, a protective layer is provided on the upper part of the light-shielding layer.
[0009] Preferably, the circuit layer assembly includes a lower circuit layer, an isolation layer, and an upper circuit layer, with the upper part of the upper circuit layer disposed below the reflective layer, the lower part of the upper circuit layer disposed above the isolation layer, and the lower part of the isolation layer disposed above the lower circuit layer.
[0010] Preferably, an adhesive backing layer is provided on the lower part of the lower circuit layer.
[0011] Preferably, an anti-static mesh is provided between the upper circuit layer and the reflective layer.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. The shape of the marking groove is a recess in the shape of various characters. Except for the marking groove, the rest of the light-shielding layer is opaque in color or material. It emits light through LED lights and is reflected by the reflective layer. When the light passes through these grooves, it makes the light brighter, so that users can see the meaning of the words represented by the marking groove in a dim environment and can clearly know the function of the corresponding switch. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the surface layer assembly structure of a membrane switch with an LED screen according to the present invention.
[0015] Figure 2 This is a schematic diagram of the circuit layer assembly of a membrane switch with an LED screen according to the present invention.
[0016] In the diagram: 1. Circuit layer assembly; 101. Lower circuit layer; 102. Isolation layer; 103. Upper circuit layer; 2. Surface layer assembly; 201. Reflective layer; 202. Transparent layer; 203. Light-shielding layer; 204. Marking groove; 3. Protective layer; 4. Adhesive backing layer. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0018] like Figure 1-2 As shown, a membrane switch with an LED screen includes a circuit layer assembly 1, with a surface layer assembly 2 on top of the circuit layer assembly 1. The marking grooves 204 are grooves shaped like various characters. The light-shielding layer 203, except for the marking grooves 204, is made of opaque color or material. It emits light through LED lamps and is reflected by the reflective layer 201. When light passes through these grooves, it becomes brighter, allowing users to clearly see the meaning of the characters represented by the marking grooves 204 in dim environments and understand the function of the switch corresponding to each marking groove 204.
[0019] The surface component 2 includes a reflective layer 201, a light-transmitting layer 202, a light-shielding layer 203, and a marking groove 204. LED beads are installed inside the light-transmitting layer 202. The upper part of the reflective layer 201 is located below the light-transmitting layer 202. The marking groove 204 is located on the left side of the light-shielding layer 203, with the lower part of the light-shielding layer 203 located above the light-transmitting layer 202. A light-transmitting film is installed inside the marking groove 204. The marking groove 204 is shaped like various fonts. Except for the marking groove 204, the rest of the light-shielding layer 203 is opaque in color or material. It emits light through LED beads, which are reflected by the reflective layer 201. When light passes through these grooves, it becomes brighter, allowing users to clearly see the meaning of the words represented by the marking groove 204 in dim environments and understand the function of the corresponding switch.
[0020] The right side of the light-shielding layer 203 has a display slot, and the inside of the display slot is equipped with an anti-blue light film. The anti-blue light film reduces the amount of blue light output from the LED screen, thereby protecting the user's eye health to a certain extent.
[0021] A protective layer 3 is provided on the upper part of the light-shielding layer 203. The protective layer 3 isolates and protects the surface layer component 2, preventing the surface layer component 2 from being worn or corroded, preventing the marking groove 204 from being deformed, and ensuring the clarity of the font.
[0022] The circuit layer assembly 1 includes a lower circuit layer 101, an isolation layer 102, and an upper circuit layer 103. The upper part of the upper circuit layer 103 is disposed below the reflective layer 201, the lower part of the upper circuit layer 103 is disposed above the isolation layer 102, and the lower part of the isolation layer 102 is disposed above the lower circuit layer 101. The circuit layer assembly 1 is prior art. When the membrane switch is pressed, the contacts of the upper circuit layer 103 deform downward and make contact with the electrode plate of the lower circuit layer 101 to conduct electricity. When the finger is released, the contacts of the upper circuit layer 103 rebound back, the circuit is broken, and the circuit triggers a signal.
[0023] The lower circuit layer 101 has an adhesive backing layer 4 at its lower part. The adhesive backing layer 4 allows the membrane switch to be connected to the housing of other devices, making it convenient to use.
[0024] An anti-static mesh is provided between the upper circuit layer 103 and the reflective layer 201. By connecting the anti-static mesh to the housing of other devices, static electricity can be conducted to the ground, ensuring the safety of the membrane switch.
[0025] Working principle:
[0026] The shape of the marking groove 204 is a groove in the shape of various characters. Except for the marking groove 204, the rest of the light-shielding layer 203 is made of opaque color or material. It emits light through LED lamps and is reflected by the reflective layer 201. When the light passes through these grooves, it makes the light brighter, so that users can see the meaning of the words represented by the marking groove 204 in a dim environment and can clearly know the function of the switch corresponding to the marking groove 204.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A membrane switch with an LED screen, comprising a circuit layer assembly (1), characterized in that: A surface layer assembly (2) is provided on the upper part of the circuit layer assembly (1); The surface component (2) includes a reflective layer (201), a light-transmitting layer (202), a light-shielding layer (203), and an identification groove (204). The light-transmitting layer (202) is equipped with LED beads. The upper part of the reflective layer (201) is located at the lower part of the light-transmitting layer (202). The identification groove (204) is located on the left side of the light-shielding layer (203). The lower part of the light-shielding layer (203) is located at the upper part of the light-transmitting layer (202). The identification groove (204) is equipped with a light-transmitting film.
2. A membrane switch with an LED screen according to claim 1, characterized in that: A display screen slot is provided on the right side of the light-shielding layer (203), and an anti-blue light film is provided inside the display screen slot.
3. A membrane switch with an LED screen according to claim 1, characterized in that: A protective layer (3) is provided on the upper part of the light-shielding layer (203).
4. A membrane switch with an LED screen according to claim 1, characterized in that: The circuit layer assembly (1) includes a lower circuit layer (101), an isolation layer (102), and an upper circuit layer (103). The upper part of the upper circuit layer (103) is disposed below the reflective layer (201), the lower part of the upper circuit layer (103) is disposed above the isolation layer (102), and the lower part of the isolation layer (102) is disposed above the lower circuit layer (101).
5. A membrane switch with an LED screen according to claim 4, characterized in that: A backing layer (4) is provided on the lower part of the lower circuit layer (101).
6. A membrane switch with an LED screen according to claim 4, characterized in that: An anti-static mesh is provided between the upper circuit layer (103) and the reflective layer (201).