Display technologies can be confusing and daunting at times, especially when the market is filled with buzzwords such as UHD, HDR, FPS, and LCD. Getting the right monitor for yourself means having to understand the different technologies and how they affect the quality of the monitor. In recent years, one other technology has been making its name in the world of displays. And that is quantum dot technology.

Before we delve into quantum dot technology, we need to understand what a light-emitting diode, or LED, is. It is a semiconductor device that emits light when an electric current passes through it. An LED display is technically an LCD model that uses LEDs for backlighting to project pictures on the screen, which results in darker blacks and more saturated colors. However, LED lights do not glow white naturally. They are actually blue LEDs coated with a yellow phosphor to produce white.


What is Quantum Dot Technology?

Quantum-dot, or QLED (Quantum dot LED), screens are essentially a new type of LED-backlit LCD, and they make use of tiny phosphorescent crystals to react to light and electricity. Less than 500 nanometers in size, the “nanoparticles” can glow in a range of colors which is precisely determined by the number of atoms within. And instead of using pure white backlights, the quantum dots emit red or green when struck by blue light. This means you will see much more highly saturated and accurate colors than an average LED screen.


How Does Quantum Dot Work?

Every pixel on the monitor emits red, green, or blue light, or sometimes a combination of all three. The accuracy of the color of each pixel is defined by wavelengths. And quantum dots can be easily tuned to their determined size to release different specific wavelengths for the best color production.


The quantum dots can be placed in tubes or more commonly arranged inside a film. The sheet is then inserted between a blue LED unit and color liquid crystal display (LCD) filters. When the blue LED shines on the quantum dots, they start glowing red and green. All three colors combine to produce the “purest” white light. The white light offers the color filters a more precise source to filter out the three colors efficiently and precisely.