On the 24th, Samsung Electronics introduced three factors that determine the difference in quantum dot TVs: the amount of quantum dots, quantum dot film, and cadmium-free materials.
Quantum dots are micro semiconductor particles that are only a fraction of the thickness of a human hair. They are capable of implementing precise colors at the highest level among existing materials and have bright superior brightness, attracting attention as next-generation display materials since their early development.
Using quantum dots in displays not only represents the colors closest to what the human eye sees through a wide color gamut, but also accurately expresses black by controlling the light source per pixel. Samsung QLED contains materials with a minimum of at least 30 parts per million.
Quantum dot film is a key element that determines color reproduction and lifespan. By forming a quantum dot film, which is a light conversion layer over a blue light source with the strongest light energy, it is possible to express the widest range of colors among commercialized displays.
In the early stages of quantum dot TV development, the consensus in academia was that cadmium was essential; however, the strong toxicity of cadmium hampered the commercialization of quantum dot technology.
In response, Samsung Electronics developed the world's first cadmium-free quantum dot material in 2014, and the following year, successfully commercialized it using cadmium-free quantum dots in 'SUHD TVs.'
Samsung Electronics, which began developing quantum dot technology in 2001, secured over 150 related patents and began to enhance the technology.
In 2017, Samsung unveiled 'Samsung QLED,' which overcame the limitations of existing OLED. By applying metal quantum dot technology, it accurately realized the Digital Cinema Initiative color standard (DCI-P3) and achieved 100% color volume for the first time in the world.
Samsung Electronics explained that the inorganic-based quantum dot technology does not change in color over time, freeing it from screen burn-in effects.