Backlighting for Membrane Keypads
BACKLIGHTING FOR MEMBRANE KEYPADS
While it's not always a design necessity, some membrane keypads & keyboards do have backlights. The backlighting component is used to illuminate both sides of the keypad to ensure that the keys are easy for users to interpret and approach for. While most of us know the intentions behind placing a backlighting feature, very few are acquainted with the fact of how it functions on membrane keypads.
At first, what are membrane keypads & keyboards?Before we go into the details of backlighting in membrane keypads & keyboards, we'll first have an overview of keypads themselves. Membrane keypads are electrical circuit comprised of a flexible material. Majority of electrical switches (like membrane keypads) are used for switching on and off an electrical circuit. This straightforward design can be used in many different applications. Membrane keypads & keyboards are flexible devices which make them suitable for devices with small dimensions that interface with humans (HMIs) and other devices.
WHY LINEPRO AS YOUR PARTNER FOR MEMBRANE KEYPAD BACKLIGHTING?
Linepro is a leading manufacturer of backlit membrane keypads & keyboards in India for 30 years. The engineering and design teams of Linepro, team up with component and material suppliers to develop products that are both visually appealing and strategically visible. The LED backlit membrane keypads and keyboards allow for a fully backlit device with the same functionality as a traditional membrane keypad. Backlighting keys, icons, and nomenclature can be done now at a much lower cost. They can be mixed-colored and lit together, or individually
GENERAL CONSIDERATIONS FOR A BACKLIT MEMBRANE KEYPAD & KEYBOARD
• Graphic overlays are digitally printed onto a suitable substrate. In case, the membrane keypad is located in an environment that is more harsh, we can also make use of hardened glass and stainless steel for your panel materials. It is crucial to select Overlay printing in line with the specifications.
• The window of membrane keypads and keyboards must be made of materials that are transparent, translucent or colored. Its window is designed to be distinct and the selection of materials can be different for different cases of projects. If the window is big in size and you need to see clearly the bottom LCD or touch screen we can always consider using scratch-resistant windows.
• The use of selective texture and UV-hardcoat surface finish
• Non-tactile or tactile, snap dome, non-snap dome
• Pillow rim-embossed membrane keypad and keyboard panels
• Liquid Optically Clear Adhesive, Optically Clear Adhesive, Air Gap
• EMI/RFI Shielding
• Support backers that are rigid, such as aluminum and FR4 with PEM mounting fasteners
• Standard connectors, such as CJT, Nicomatic and Molex etc.
