Membrane switch with LED&Connector

Material：PET/PC

Thickness：0.1-1.0 mm  

Structure ：Overlay+Overlay spacer+flexible switch+insulate layer+Rear adhesive

Description：

Flat touch Membrane Switch

Keys embossed membrane switch  

Membrane switch with LEDs  

Membrane switch with Metal domes  

Membrane switch with Pins & connector

Light Guide Film (LGF)

Light Guide Film (LGF) is a thin film backlighting technology that will direct light produced by side-firing or right-angle LEDs across the area that needs to be backlit.

The advantage of LGF is that the film can be fabricated into almost any shape, providing consistent backlighting across one or more areas within the switch.

Multiple LGF films can be used within one application to provide discrete backlighting to different graphic features.

Different colored LEDs can be used to achieve unique lighting effects or white LEDs can be used to light different printed graphics on the overlay.

Although Light Guide Film can be more expensive than other backlighting technologies (below), it has several advantages:

1.The LGF is extremely thin so it can be incorporated into membrane switches that can’t exceed a certain thickness (i.e. small, lighter devices)

2.LGF has limited impact on the tactile feel of buttons.

3.LGF can provide even backlighting across large and small areas, including applications where the light remains on while the switch is powered.

What is a “Membrane Switch”?

A membrane switch is a printed electronic circuit that uses pressure to open and close a circuit. The Membrane switch circuitry is most often screen printed using conductive inks, which are typically made of silver, carbon, and/or graphite.

Membrane switches are part of a range of devices considered to be user interfaces (also called operator interfaces, or man-machine interfaces) along with display-based touch screens, and mechanical switches such as push-button, toggle, rocker, and slide switches. The ultimate purpose of a membrane switch is to serve as the interface between man and machine, enabling an operator to communicate with a piece of equipment, instrument, or machinery.