Non-Tactile Membrane Switches
Non-tactile membrane switch
Long life but has no tactile feel
Membrane switch strict structure
Good sealing
Beautiful appearance
With a moisture-proof and long service life
The new electronic keyboard operating system integrates key functions, indicator light components, and a front panel.
Non-tactile membrane switch
The buttons of the non-tactile membrane switch are not embossed or printed only with ink on the button frame. The realization of the function lies in the combination of the power-on point on the panel or the power-on point of the upper circuit and the power-on point of the lower circuit to form a line conduction. The main difference from the tactile membrane switch is that when the button of the graphic overlay is pressed, there will be no obvious sound and no tactile feedback is provided. The main way to judge the realization of the function is whether there is an optical change in the LED or LCD window. You can also use LED backlight technology to determine whether the function is realized by judging whether the button or font is lit.
Working Principle of Membrane Switch
The basic working principle of the membrane switch is as follows:
When the membrane panel is not pressed, the membrane switch is in a normal state, with its upper and lower contacts in a disconnected state, and the isolation layer isolates the upper and lower circuits; when the panel is pressed, the contacts of the upper circuit deform downward, It coincides with the lower line and makes the line conductive.
The conductive line sends a signal to the external connection instrument (substrate) to realize its corresponding function; when the finger is released, the upper circuit contact rebounds back and the circuit is disconnected. The loop triggers a signal.
Services
Shanyo’s Membrane Switch Manufacturers Services
Excellent Waterproof Process ( IP67 )
Shanyo’s unique waterproof technology with 3M300LSE,
it can reach the waterproof grade of IP67 that
can be used in humid environments.
Beautiful Appearance
Modern Silkscreen Printing with Top design Custom the product as your need
Comfortable Key Feeling
High Quality
Delicate Tactile
Easy to Use
Easy to carry and disassemble
Original 3M adhesive
Stable Quality
Shanyo Guarantee Consistent Quality
of Proofing & Batches
High Reliability
Shanyo membrane switch
life up to 2 million times
Long Lifetime
High Quality
The lifetime can reach
Factory direct sale low Cost
Shanyo offers the low cost
with high quality
Small Volume & Light Weight
The total thickness is only about 1mm
Weighs only a few grams to ten grams
Membrane Switch Keyboard Application Fields
Shanyo can customize and produce various sizes of membrane switches, membrane Key, graphic overlays, membrane circuits, LED backlit membrane switches, LGF backlit membrane switches, EL backlit membrane switches, capacitive membrane switches, rubber button membrane switches, FPC circuit membrane switches, PCB Circuit membrane switches, PCB integrated circuit membrane switches, metal back panel membrane switches, acrylic/PC back panel membrane switches, waterproof membrane switches, anti-UV membrane switches, anti-scratch membrane switches, digitally printed membrane switches and other application fields.
Membrane switches consist of buttons, front panels, text, marks, logos, and transparent windows. besides
The design of graphic overlay can reflect the integration of product functions and original color expression.
This is unique. Membrane switch keyboard application areas:
- Instruments and Instruments
Measuring instruments, analytical instruments, navigation instruments, and medical instruments.
- Household appliances
Remote controls, electronic locks, washing machines, microwave ovens, rice cookers, audio-visual equipment, etc.
- Office systems
Telephones, fax machines, photocopiers, calculators, etc.
- Computer
Operate a keyboard, monitor, printer, plotter, etc.
- Electronic toys
Electronic organs, game consoles, electronic targets, etc.
- Mechatronics products
CNC machine tools, intelligent robots, electronic scales, printing machinery, color expansion equipment, industrial cameras, etc.
- Microprocessor system.
Shanyo company has passed ISO9001:2015 quality management system certification, and SGS certification, and is an AAA credit enterprise. We provide capacitive and resistive membrane switches and key surface stickers, tactile membrane switches, silicone rubber buttons, membrane panels, PCB integrated circuits, and FPC combined membrane switches to global customers, as well as provide overall solutions for OEM and ODM membrane switch series products!
Office Equipment
Instrumentation
Mechanical & Industrial Control
Toys & Remote Control
Flat Membrane Switch
PET Membrane Switch
Waterproof Membrane Switches
Non Tactile Membrane Switch
Membrane Keyboard Switches Technical Parameters:
Membrane switch keyboard is a sealed multi-layer structure non-self-locking key switch composed of a flexible insulating material layer and a conductive material layer. It is an internationally popular type in recent years that integrates panel and switch function markers, display windows, and indicator lights. The new micro-current electronic switch, which integrates the transparent window, the inner edge of the switch, and the lead-out wire of the switch circuit, forms an electronic control system assembly. Compared with conventional mechanical switches, it has a beautiful appearance, long life, resistance to bending, strong sealing, and waterproofing. , oil-proof, shock-resistant, drop-resistant, small size, ultra-thin, light weight, and other advantages that conventional switches cannot match. The main product models include flat non-tactile type, dome convex tactile type, convex tactile type, LED light-emitting tube type, EL backlight type, frame line raised type, and hard circuit board type membrane switch.
Membrane Keyboard Switch Materials Selection PC/PET
Membrane panel is a type of HMI, in which the structure is generally PET, PC as the base material, DT, Nitto, or 3M as the adhesive material to assemble them. A membrane switch and panel is a kind of HMI with more prominent performance and lower prices.
The membrane touch panel is the operating system on many electronic controllers, medical accessories, and agricultural products, and it is also the first interface. Color matching and design are particularly important. Fortunately, as one of the most professional membrane switch manufacturers, Shanyo’s engineers and designers are very good at this type of membrane control panel. At the same time, we will strictly review whether the customer’s drawings and ideas can be realized.
Membrane Keyboard Switch Materials Selection PC/PET
1. Panel material:
Generally divided into two categories: PC (Polycarbonate) and PET (Polyester).
PC (Polycarbonate)
- There are bright and matte surfaces (fine sand, medium sand, coarse sand)
- Commonly used thicknesses are 0.125, 0.175, 0.25mm
- Special treatment includes HP series (such as HP40, HP60 and HP92S, etc.)
- Advantages of PC material: good ink adhesion.
- Disadvantages of PC material: poor corrosion resistance, difficult to use in outdoor products.
- Generally, those with Windows use a glossy PC, and those without Window use a matte PC. Matte PC is scratch-resistant.
PET（Polyester
Matte:
Autotype (thickness 0.15mm and 0.20mm) Kimoto (thickness 0.125mm and 0.188mm)
Bright side:
Autotype (thickness is 0.18mm and 0.25mm) Izaya (thickness is 0.125mm and 0.188mm) The above PET is treated PET.
Line materials:
PET has good insulation and heat resistance, high mechanical strength, transparency, especially bending resistance, and high elasticity. Therefore, PET is an ideal material for making membrane switch circuits.
- Generally, untreated PET is used;
- Thickness is 0.075, 0.1, 0.125mm.
- It is generally appropriate to choose 0.125mm. If it is too thick, the response will be slow and the switch sensitivity will be poor. If it is too thin, it will have insufficient elasticity and will not be conducive to the plug-in of the lead wire end.
Key piece (isolation layer) material:
Generally 0.1, 0.15, 0.20, and 0.25mm thick double-sided tape.
The thickness of the key sheet depends on the size and shape of the key, which is directly related to the operating pressure of the membrane switch and the sensitivity and reliability of the switch. Therefore, the size of the keyhole should be consistent with the size of the key pattern. When the size of the keyhole is larger, the thickness of the keysheet will also increase.
Membrane Key Switch Material Used In The Circuit Layer
Membrane Key Switch Material Used In The Circuit Layer
The base material of the circuit should be polyester(polyethylene phthalate) Film (Polyester referred to as PET).
It has good insulation and heat resistance, high mechanical strength, transparency, and airtightness, especially folding resistance and high elasticity.
Membrane Switch Panel Thickness of The Plastic
Custom Membrane Switch Keyboard Ventilation Slot
The design of the ventilation slot is not arbitrary. It should be based on the relationship between adjacent key positions and the amount of air absorbed by the key hole to determine the direction of the shunt. This way, we can better use aerodynamic force to force the relevant key positions to reliably separate. The ventilation slot is generally 2mm wide, and there are no less than 3 keyholes connected to the ventilation slots. 4-6 key connections have better effect. If the number of keys is less than 3, the key ventilation slot must be ventilated to the outside. It is ventilated to the outside and the buttons feel good to the touch.
Membrane Switch Keyboard Inks
It is divided into conductive ink, insulating ink, matte ink, and color ink.
Custom Membrane Switches Embossed key Type:
Shanyo can provide various types of custom membrane switches embossed keys, as shown in the picture below.
The default is circular relief (1st from left). If you need other types, please indicate it in the remarks or drawings when custom.
Membrane Switch with Metal Dome Key
This type of membrane switch uses a metal dome as the upper circuit layer of the switch. By pressing the key, the metal dome central point will connect the lower circuit, and then trigger with a signal. Metal dome is usually made of stainless steel, which is flexible and can be pressed more than one million times.
The keys of the metal shrapnel have a good button tactile and provide good tactile feedback to the operator. Shanyo uses a stainless steel cross dome and is available in specifications of 8.4mm, 10mm, 12mm, 14mm, and 16mm. The metal dome size of 10mm – 12mm is generally recommended, which is more suitable for the actual finger press.
Membrane Switch with LED
Shanyo this product can be welded with LED lights of various colors according to customer needs.
Flat Membrane switch
Waterproof Membrane Switch
Shanyo’s unique waterproof technology with 3M300LSE adhesive, the waterproof grade can reach IP67. This product is more used in the kitchen medical, and outdoor devices.
Membrane Switch with Electrostatic Shield
Features:
Waterproof Membrane Switch
Shanyo’s unique waterproof technology with 3M300LSE adhesive, the waterproof grade can reach IP67. This product is more used in the kitchen medical, and outdoor devices.
Plug-in-Card Membrane Switch
In this kind, the Membrane switches can be used repeatedly. Only the graphics and text of the card need to be changed. Shanyo designs key content, color, effect, etc. according to customer needs, The Plug-in-Card Membrane Switch can only change the design of the cards in the future, it can be used more widely.
Membrane Switch with Die-pressing Key
It’s also noticeable enough to feel like the switch is off. The bumps of silver paste require the use of molds, especially for batch orders. Customized bump molds can greatly improve production efficiency and product quality stability.
The stamped silver pad can be designed from 5mm to 11mm, and the recommended size is 8mm to 10mm. The button size will be more suitable for finger pressing.
Membrane Switch Design Guide Design Specifications
Check whether the information provided by the customer is complete:
- a. Engineering drawings (mark complete dimensions and tolerances, clearly mark windows, punching holes, LED polarity, color, etc.)
- b. Color card.
- c. *.ai or *.cdr image file
- d.Matrix
- e. Arrangement of lead wire PIN pins
- f. Chassis or sample
- Shape inspection: Check the shape and internal slots and windows accordingly according to the product design drawings.
- Appearance inspection: check the graphics of the panel layer， the logo text, etc, and whether there are defects, omissions, stains, etc. Whether the window and press position are offset. If there is protective film attached to the window.
- Check the peel strength of the adhesive: check whether the adhesive is the adhesive selected according to the order, and test the peel strength of the adhesive is not less than N/25mm.
SHANYO PARTNER
Membrane Switches Keyboard
FAQs
Frequently Asked Questions
Q1: What materials are used in Shanyo membrane Switch keyboards?
- Shanyo uses high-quality materials such as polyester or polycarbonate films, conductive inks, and adhesive layers in the production of their membrane keyboards.
Q2. Analysis of common failure modes and causes of membrane switch products?
Phenomenon:
There is no action when lightly tactile the keyboard panel. You must press the keys completely to make full contact before there will be a response.
Reason:
The resistance of the product is too large and the response is not sensitive.
Q3. Membrane keyboard switch keyboard appears on and off?
The keyboard panel turns on and off irregularly when in use. After this phenomenon occurs, shake the product terminals or re-plug and unplug, and it will return to normal.
The product terminals are not pressed tightly, resulting in poor contact.
Q4. The entire row of membrane key switch is unresponsive?
After the product is installed, one or more rows of key are unresponsive.
A. After the upper and lower line terminals were pinned in the same direction, there were pins in different directions that had poor contact with the product line, causing the entire row of buttons to become unresponsive.
B. The lead wire of the product was excessively bent during installation, and the circuit at the bend was broken, causing all the keys on the circuit to become unresponsive.
C. Due to improper protection, the wiring at the lead-out was cut off, causing the keys to become unresponsive.
D． The pin slot is deformed and has poor or no contact with the straight pin after installation.
Q5. Why does the product start on its own?
The keyboard panel malfunctions after installation.
A. There are granular objects on the mounting surface of the membrane switch keyboard or there are bubbles wrapped around it due to uneven pushing, which will push up the base of the product, causing it to start on its own.
B. There are creases on the keys on the membrane switch panel, making the keys more sensitive.
Q6. Membrane switches keyboard rebound is sluggish?
The membrane switch panel will have continuous movements or repeated sounds after the operation is completed.
Due to improper operation during production, rubber particles remained on the keys. When operating the keys, the rubber particles will adhere to the upper and lower wire pieces, resulting in slow rebound, continuous movement, or repeated sounds.
Q7. Membrane Switches Issues to note during assembly?
- Testing or operating buttons before product assembly must be carried out on the platform to avoid the key being broken or products equipped with a metal dome causing the snap dome to dent.
- Before packaging, the mounting surface should be smooth and clean, without oil, dust, or other foreign matter.
- The product cannot be scratched with sharp or hard objects to avoid scratches on the lines or surface.
- Do not use corrosive liquids to wipe the product.
- Products using silver filaments must not be bent, otherwise the silver filaments will wrinkle and cause poor appearance.
- When plugging and unplugging the terminals of the membrane switch panel and the straight pins, you must hold the housing of the terminals with your hands.
- If the product needs to be torn off and reinstalled due to inaccurate placement or other circumstances, the angle between the product and the mounting surface should not be greater than 30° to avoid creases on the product.