China Overlay electronic switch Manufacturer, Supplier, Factory

Tiantai Electronics is a leading China digital printing non-tactile membrane switch manufacturer and supplier. Digital printing non-tactile membrane switch which ensures the switch remains touch-sensitive even after long time use. This technology has revolutionized the way we interact with electronic devices, making it possible to use even the slightest touch to operate any device.

Glass Overlay for Door Lock is durable accessory that improve the security of your home. This product is designed to fit perfectly on most standard door locks, adding an extra layer of protection to your house while complementing your inside design.

Tiantai Electronics is silicone rubber switch manufacturer and supplier in China who can wholesale silicone rubber switch. Silicone rubber keypad are high quality washable keyboard that are fully sealed, waterproof and flexible. Silicone material is extremely inert and is not affected by harsh climatic conditions or by any external materials like solvents, acids, etc.

As the professional manufacturer, Tiantai Electronics would like to provide you capacitive flexible membrane switch. For the Capacitive flexible membrane switch, it is integrated design of touch sensing circuit and keys function, and back printed flexible anti-folding soft tracks, Front printed switch function prompt and transparent display characters. Capacitive flexible membrane switch is light and thin, total thickness is about 0.3mm. This is suitable for installation in translucent plastic shell or PC/Acrylic panel, the capacitive flexible membrane switch can’t be seen outside the product when light off. When LED are on, the product surface shows the switch icons and character pattern.

Tiantai Electronics is a leading China 3 X 4 matrix membrane keypad manufacturer. 3 X 4 matrix membrane keypad is a versatile and widely - used input device that combines functionality, durability, and space - efficiency. Consisting of 12 individual keys arranged in a grid pattern with three rows and four columns, this keypad is designed to meet the input requirements of various applications.

The membrane switch keyboard is a popular subcategory of membrane technology, designed for reliability, cost-effectiveness, and ease of use. Constructed from flexible yet durable polyester and polycarbonate materials, the membrane switch is overlaid with legends and graphics for clear, custom labeling. The core function relies on opening and closing an electrical circuit via layered flexible sheets; when a user presses a key, the circuit is completed momentarily, rapidly registering input and minimizing contact bounce issues seen in older mechanical contacts. This type of keyboard is especially common as membrane keypads in household appliances such as washing machines, microwaves, air conditioners, remote controls, and smart home panels, where moisture and dust resistance are paramount. They are also widely used in point-of-sale (POS) systems, kiosks, copying machines, industrial HMI panels, medical devices, automotive consoles, vending machines, printers, and telecommunications equipment, highlighting their extensive role in both consumer and industrial environments. Critical components of a membrane switch keyboard include several precision-made layers, each serving a dedicated purpose to deliver reliable, long-term performance in high-use environments: Graphic Overlay – This uppermost layer forms the visible user interface and is often coated with durable, UV-resistant graphic inks to prevent fading. It is constructed from flexible polyester or polycarbonate for flexibility and longevity, often featuring customized icons, branding, or backlighting window openings for control panel integration. Domes – Domes are integral to tactile membrane keypads, providing a physical response or ‘snap’ when pressed. Plastic (polyester or polycarbonate) is common for most consumer goods, while metal domes are used for higher precision and longer service life. Dome size, shape (such as four-legged, triangular, round, or oblong), and material directly influence tactility, key travel, and actuation force. Spacer – The spacer maintains circuit separation and defines travel distance for each keystroke. It contains punctured holes (die-cut windows) directly beneath each keypad position to permit contact between the overlay and the conductive circuit layer, preserving the reliability of the switch actuation. Circuit Layer – The circuitry, often produced via screen printing (with silver, carbon, or copper-based conductive inks) or photochemical etching, forms the functional heart of the device. Advanced designs may use printed circuit boards (PCBs) for enhanced complexity and durability, allowing for double-layer or multi-layer circuits to accommodate complex functionalities, such as multi-zone lighting or integrated sensors. Circuit Terminal – A flat ribbon cable or flexible tail connects the membrane keypad to the main controller, ensuring quick and secure integration with embedded systems, PLCs, microcontrollers, or PCBs.