220px-LCD_layers.svgLiquid-crystal display (LED) technology is used in a wide variety of applications, ranging from televisions and computer monitors to washing machines, in-car control systems and more. Today, we’re going to take a closer look at LCD technology, revealing some sun facts that may surprise you.

LCD Technology Has Been Around for Decades

Some people assume that LCD is a relatively new form of electronic display technology, but this isn’t necessarily true. According to Wikipedia, the technology has been around for decades, with the world’s first active-matrix LCD panel being produced by T Peter Brody’s team at Westinghouse in the early 1970s. While the technology has evolved since then, the basic fundamental principle of using liquid crystals remains the same.

Liquid Crystals Do Not Produce Light

Contrary to what some people may believe, the liquid crystals with an LCD display don’t actually produce light. Instead, they are illuminated by some other lighting source. LCDs use a variety of back lighting methods, some of which include cold cathode fluorescent lamps (CCFL), EL-WLED, WLED array, and RG-LED. With that said, the vast majority of LCDs on the market today use light-emitting diode (LED) back lighting, as it’s effective, energy-efficient, and easy to implement.

LCD TVs in 2008

2008 was a monumental year for the LCD industry, as LCD TVs were projected to account for roughly half of the 200 million TVs that were shipped globally, according to a report by Display Bank. Today, LCDs remain one of the most popular types of TVs on the market, accounting for more sales than any other type.

Can Be Made in All Shapes and Sizes

Another perk of LCD technology is its ability to be used in devices of nearly all shapes and sizes. LCD displays can be designed a small, handheld devices, or they can be designed as a massively oversized displays. It’s this unmatched level of versatility that makes the technology so popular among manufacturers.


One of the reasons why LCD has trumped CRT in recent years is because of its energy-efficient characteristics. A typical LCD display uses just 20-25% of the power of a CRT display, attesting to its  energy-efficient properties. This makes it particularly useful in applications where digital buttons or lights are constantly running.