Customizable Surface Mount Membrane Type Keyboard For Hairfoil Device
Creating a customizable surface mount membrane keyboard for a hairfoil device involves several key considerations. Here’s a breakdown of the process:
1. Design Specifications
- Form Factor: Determine the size and shape of the keyboard to fit the hairfoil device.
- Key Layout: Decide on the number of keys and their arrangement. Common layouts include QWERTY or custom layouts based on user needs.
- Key Functionality: Define what each key will do (e.g., power on/off, temperature control, fan speed).
2. Material Selection
- Membrane Layers: Typically, a membrane keyboard consists of three layers:
- Top layer (graphic overlay)
- Spacer layer
- Bottom layer (circuit)
- Durability: Choose materials that can withstand repeated use and exposure to moisture or chemicals.
3. Custom Features
- Backlighting: Consider adding LED backlighting for visibility in low-light conditions.
- Custom Graphics: Design the top layer with user-friendly symbols or labels.
- Touch Sensitivity: Decide if you want to implement capacitive touch technology for a more modern feel.
4. Manufacturing Process
- Prototyping: Create a prototype to test the design and functionality.
- Testing: Conduct usability tests to ensure the keyboard meets user needs and is durable.
5. Integration
- Connection: Ensure the keyboard can connect seamlessly with the hairfoil device (e.g., via USB or Bluetooth).
- Firmware: Develop necessary firmware to interpret the keyboard inputs correctly.
6. Customization Options
- User Preferences: Allow users to customize key functions or layouts through software.
- Aesthetic Choices: Provide options for different colors and finishes for the keyboard overlay.
7. Documentation and Support
- User Manual: Create detailed documentation for installation and customization.
- Customer Support: Offer support for troubleshooting and customization assistance.
Specification:
1)Material (for front or face overlay)
Polyester:
1.Highly versatile for embossing
2.Highly resistant to chemicals
3.Better durability
4.For internal and external use, UV resistance
Polycarbonate:
1.Different surface(Glossy, Matt) and thickness(From 0.12mm~2mm)
2. cost-effective in price
3.For internal and external use
2) Embossing
Rim embossing/pillow embossing/dimple embossing
Graphic overlays can be embossed in order to insert domes/LED, leave space for mechanical keys/LED and provide tactile indications and better tactile feeling.
3)Windows(for display function)
1. print different colors windows, As transparent grey/Red/green window for display
2. Clear/Transparent window for LCD display
2. Matt/semi-transparent window for LED
4)Keys/buttons
Tactile keys---with metal dome or poly dome
Non-tactile--silver printing dots with flat key
5) Embeded LEDs
Small, brilliant lights only about 0.02’’ in height. Avaliable in several vibrant colors.
LED colors: white, yellow, orange, green, red, or double colors LED.
6)Cable
It is an extension of the printed circuit and is used to communicate with your device.
7)Types of connector
1.Zero insertion force (ZIF) connector; 2.Female connector; 3.male connector
8) EMI / RFI / ESD Shielding
use an aluminum foil shielding / a clear ITO electrical conductive polyester
9)Adhesive
mostly used are 3M-double-side glue
10)Backplate-
in aluminum, polycarbonate, acrylic, PCB
Common Membrane switch structure
About Taida.pdf
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