Of all the different display technologies, none are more popular in touchscreens than liquid-crystal display (LCD). Whether it’s a capacitive, resistive or surface acoustic wave (SAW) touchscreen, it may feature an LCD. LCDs are display devices that are characterized by the use of liquid pixels. They have a pixel layer. Within this pixel layer is an organic and liquid material that creates images when illuminated.
There are other display technologies, however. If you’re looking to buy one or more touchscreens, you might be wondering what benefits LCD offers over these alternative display technologies. Below are some of the top benefits of LCDs in touchscreens.
Protection From Screen Burn-In
Screen burn-in isn’t a concern with LCDs. Screen burn-in, of course, is a phenomenon in which an image becomes permanently burned into the display. If you pause or otherwise leave the same image on the screen for an extended period, the display may suffer from screen burn-in.
Only display devices that use an electroluminescent display technology are susceptible to screen burn-in. If a display device features phosphor-based pixels, it may suffer from screen burn-in. LCD isn’t an electroluminescent display technology, nor does it feature phosphor-based pixels.
Compatible With All Major Touchscreen Technologies
LCDs are compatible with all major touchscreen technologies. You can find capacitive touchscreens with LCDs. You can also find resistive and even SAW touchscreens with LCDs.
Capacitive, resistive and SAW are the three most common types of touchscreen technologies. Capacitive touchscreens work by sensing the presence of a conductive object, such as a bare finger. Resistive touchscreens work by relying on pressure to create a circuit. SAW touchscreens work by looking for disruptions in sound waves on the surface. While they all use different methods to detect commands, capacitive, resistive and SAW touchscreen technologies are compatible with LCDs.
Another reason LCDs are commonly used in touchscreens is because they are energy efficient. The energy-efficient properties of LCDs is largely attributed to their backlighting. Because it’s not an electroluminescent technology, LCD requires backlighting. Most LCDs feature light-emitting diode (LED) backlighting.
LED backlighting consists of diodes that are placed behind the pixel layer. When activated, the diodes will illuminate while subsequently beaming light through the pixel layer. LED is an energy-efficient backlighting technology. And because most LCDs use LED backlighting, they share these same energy-efficient properties.
When most people think of LCDs, they envision traditional displays like TVs and computer monitors. But LCDs are found in other devices, including touchscreens. They offer protection against screen burn-in, are compatible with all major touchscreen technologies, and LCDs are energy efficient.