Thin film keyboard is a type of keyboard that uses rubber perforated film or thin film switches to register key inputs. Compared to traditional mechanical keyboards, thin film keyboards typically have a lighter and smoother touch, and overall are thinner and lighter. The design of this type of keyboard typically includes several layers of thin film or film sheets, one of which has an opening engraved in the shape of a button, and the other layer has a conductive material. When the button is pressed, the circuit between these two layers of thin film will be connected, triggering the registration of the button.

Here are some characteristics and advantages of thin film keyboards:

Lightweight design: Thin film keyboards typically adopt a lightweight design, making them easier to carry and move, suitable for users who need to carry keyboards frequently, such as business people or students.

Low noise: Due to the use of rubber perforated film or film switches, film keyboards are usually quieter than mechanical keyboards, making them more suitable for use in quiet environments such as offices or libraries.

Low cost: Compared to mechanical keyboards, thin film keyboards are usually cheaper, making them an economical choice, especially for users who do not have high requirements for keyboard performance.

Light touch: The key touch of a thin film keyboard is usually lighter than that of a mechanical keyboard, and the pressure on the keys is less. Therefore, for some users, especially those who type for a long time, it may be more comfortable.

Low current demand: Due to the working principle of thin film keyboards, they typically require less current, which means they can extend battery life or be more energy-efficient on devices that require battery power.

Although thin film keyboards have the aforementioned advantages, they also have some drawbacks, such as relatively short lifespan and less tactile feedback. However, for users who require lightweight, low-cost, and quieter keyboard solutions, thin film keyboards remain a popular choice.