Light-emitting diode (LED) has become a popular backlighting option for use in keypads, human machine interfaces (HMI), electronic displays and more. Consisting of a two-lead semiconductor with a p-n junction diode, it provides ample illumination when activated. While there are other backlighting options from which to choose, LEDs offer several key benefits when used in keypads, including the following.
#1) Even, Uniform Lighting
First and foremost, LEDs provide even and uniform lighting, ensuring that no area is brighter or duller than others. LEDs are designed to produce even lighting across the device or environment in which they are used. This means you don’t have to worry about one area of the keypad going dark while the other remains bright.
#2) Energy Efficiency
LED backlights are also energy efficient, consuming less power than other backlighting options. When compared to CFL, LEDs consume about five to six times less power. Assuming you have several keypads using LED backlights, the energy-savings can really add up. So, while LEDs may initially cost more than other backlighting options, it will likely pay for itself over time.
It’s frustrating when you invest in a new keypad, only for the backlight to burn out just a few months later. Thankfully, this isn’t a problem with LEDs. It’s not uncommon for LEDs to last for tens of thousands of hours, allowing you to get more bang for your buck. In fact, some individuals and organizations use their LED-backlit keypads for years without ever experiencing burnout.
LED backlights are incredibly versatile and can be used in a wide range of applications. From standard computer keyboards to HMI keypads and machine controls, LEDs are capable of illuminating just about anything. If a device or application needs a backlight, LED is a viable solution.
#5) Variety of Color Options
Finally, LED backlights offer a wide range of colors, some of which include red, green, blue, yellow, purple and more. The color produced by LEDs is also bright and vibrant; thus, creating a brilliant display that enhances and improves the visibility of the keypad in which it is used.
As you can see, LED backlights are a great choice for keypads. They provide even, uniform lighting, consume minimal energy, last for tens of thousands of hours, are highly versatile, and they are available in countless color options. For these reasons and others, you should consider LED backlighting for your keypads.