LED membrane switches constitute an integrated operating system combining key functions, indicator elements, LED backlighting, and instrument panels.
Light source layer: Utilises surface-mount LEDs (SMD LEDs, thickness 0.3–0.5mm) or EL cold cathode films, employing light guide column technology to achieve uniform light distribution and eliminate localised overbrightness.
Circuit Layer: PET substrate printed with silver/carbon paste circuits, featuring metal spring contacts or polyester dome structures for tactile feedback.
Sealing Structure: Multi-layer laminated PET film with surface layer light transmittance >85% (thickness 0.125–0.25mm), featuring optimised aperture isolation layers for actuation travel.
Simple Operation: Featuring a single key, users need not distinguish between multiple buttons, ensuring straightforward and direct operation with minimal risk of misoperation.
Intuitive Display: The LED illumination clearly indicates key status in low-light environments, facilitating user recognition and operation.
Superior Sealing: The fully sealed construction provides waterproof, dustproof, and oil-resistant properties, enabling adaptation to various harsh working conditions.
Extended Lifespan: The membrane material and LEDs exhibit prolonged durability. Typically, the mechanical lifespan of the membrane switch exceeds one million cycles, while the LED lifespan reaches tens of thousands of hours.
Aesthetically Pleasing: The panel can be printed with intricate patterns and colours according to design requirements. Characters and graphics remain resistant to damage, enhancing the product's visual appeal.
Consumer Electronics: Smart home panels (e.g., air conditioning, lighting controls), combining night-time backlighting with tactile feedback;
Industrial Equipment: CNC machine tool control consoles;
Medical Instruments: Sterile operating interfaces integrating gesture sensing and voice announcements.
