Should I Choose a Flat-Panel or Full-Travel Membrane Keyboard?

If you're shopping for a new keyboard, you might be wondering whether to choose a flat-panel or full-travel membrane model. Both types have become popular alternatives to traditional dome-switch keyboards. As their names suggest, they feature a membrane substrate that's ergonomic and comfortable to use. But there are several differences between flat-panel and full-travel membrane keyboard. To ensure you make the right decision, you should familiarize yourself with the nuances between these two keyboard styles.

Flat-Panel Membrane Keyboards Explained

You typically don't find standard computer keyboards featuring flat-panel technology. Rather, they are used in applications such as household appliances, fax machines and photocopiers. Flat-panel membrane keyboards feature three layers. The top layer contains the printed icons and button designs, as well as conductive ink or material on the back. Next, there's a spacer layer that contains air or inert gas, followed by a back layer that also contains conductive ink or material. The spacer layer is designed to separate the upper and bottom layers, preventing them from making contact. When a user presses a button, however, the upper and bottom layers of the flat-panel membrane keyboard meet, thereby registering the user's command.

Full-Travel Membrane Keyboards Explained

Full-travel membrane keyboards are characterized by a one-piece design in which a membrane substrate is placed over an electrical switch matrix. When you press a key, the bottom part of the key touches the electrical contact underneath. Most full-travel membrane keyboards feature a spring at the bottom of the keys that pushes against the membrane substrate. While ergonomic and easy to use, however, full-travel membrane keyboards lack the tactile response of mechanical-switch keyboards.