Why LCDs Have Two Polarized Layers

Why LCDs Have Two Polarized Layers

Liquid-crystal displays (LCDs) contain many different layers. They feature a pixel layer, for instance, that contains the liquid pixels. They also feature a backlighting layer that’s responsible for illuminating the liquid pixels. LCDs, however, also feature two...
What Is a Hall Effect Keyboard?

What Is a Hall Effect Keyboard?

Have you heard of hall effect keyboard? If so, you might be wondering how they differ from other types of keyboards. All keyboards consist of switches. Each key is essentially a switch. Pressing a key will close the underlying circuit. Releasing a key will then open...
The Rise of Piezo Switches: What You Should Know

The Rise of Piezo Switches: What You Should Know

When researching the different types of switches, you may come across piezo. Not all switches rely on moving parts. In addition to mechanical switches, there are piezo switches. Piezo switches are essentially touch switches that feature a piezoelectric panel. The...