The main advantage of QLED TV is the high brightness of quantum dots. Brightness is an important factor in image quality.
The abbreviation QLED, which Samsung uses to refer to its own line of TVs, hides quantum dot displays. What are these quantum dots? Essentially, these are crystals that emit light when exposed to the electricity of light. The color emitted by a crystal depends on its size and the material from which it is made. The larger the point, the closer it is to the red spectrum, the smaller - to the blue spectrum. Why do these dots emit light of one color or another? Their particles function at a quantum level and can accurately reproduce the desired color. The technology of quantum dots provides high brightness of the screen luminescence, which means the highest image quality.
Quantum dot displays consume significantly less power than traditional LCD displays. Other advantages of QLED technology are higher brightness and contrast, and against the background of OLED displays, quantum dot screens stand out for a longer lifespan.
The main advantage of QLED TV is the high brightness of quantum dots. Brightness is an important factor in image quality. High brightness automatically increases the contrast on the screen. To make the image more contrasting, that is, to expand the brightness range between the darkest and lightest parts of the image, you can use HDR technology . It enhances the image and lets you bring out even more detail in the darkest and lightest scenes.
The spectrum of red can accommodate many different shades of red. QLED TVs are good because they most fully reproduce all the variety of these shades. The unique QLED technology is combined with other tint technologies to provide the highest picture quality and maximum realism compared to other TVs.
Samsung QLED TVs have been widely represented in the global market for several years. Each customer can choose the TV they like, depending on their wishes and the area of the room in which it is planned to be used: whether it is a 43-inch TV for a small apartment or flagship models with a diagonal of 85 inches or more for luxury apartments. Standing apart are Samsung's QLED 8K TVs, which display 33 million pixels, four times the size of 4K TVs. For example, the Q950T model with a " borderless " 85-inch screen, Quantum 8K processor and support for HDR10 + technologies, Object Tracking Sound and content scaling up to 8K resolution using machine learning and artificial intelligence technologies.
But Samsung, as befits a market leader, is not resting on its laurels and is working on the development of QLED technology. Last month, Samsung's Advanced Institute of Technology (SAIT), the research hub for Samsung's cutting-edge technologies for the future, unveiled technology to deliver the best possible color reproduction in blue LEDs for Quantum Dot (QLED).
Blue quantum dots, which have the largest band gap among LEDs in the three primary colors (red, green, blue), quickly oxidize when exposed to external light, resulting in a short lifespan and low light output. Because of this, until now, companies have not been able to develop a technology that could be used to make blue quantum dots. Samsung has succeeded in creating blue QLED technology with industry-leading results, including a 20.2% increase in light output, a maximum illumination of 88,900 nits and a QLED LED life of 16,000 hours. This means that even if you watch TV every day for three hours, the LEDs will last about 15 years.
Quantum dots consist of a basic structure, which in turn has a nucleus, a shell, and several ligands. The core absorbs and re-emits light, and the cladding layer surrounding the QD core increases its lifespan and enhances photoluminescence efficiency, preventing damage from temperature and humidity. Branching-shaped ligands are located on the surface of the quantum dot shell and help maintain the distance between particles. To provide better stability of quantum dot materials, achieve good quantum efficiency, and increase LED lifespan, the researchers applied a structure with double emitting quantum dot layers and shorter ligands on the surface of blue LEDs, while simultaneously increasing the current injection rate.
This study is significant because Samsung has not only established the characteristics of quantum dot light emitting diodes, but also proven that the technology can provide top-notch performance at the element level. So, for sure in the near future we are waiting for even more advanced Samsung QLED TVs, in which the innovative Blue QLED technology will be applied.