Full summer heat waves and high temperatures, you probably haven’t focused on energy efficiency in yours The TV or smartphone screen if your air conditioner it explodes. But you there is maybe I crave bright, bold colors and dark dark scenes of The end of Love Island or i iPhone 18 rumors.
A team of MIT and Samsung researchers is looking to do just that — to give you better picture quality and more energy efficiency in your TV of the future, A VR headset again smartphone screens. A paper published Friday in the journal Science Advances shows a breakthrough that could soon bring new high-efficiency quantum dot LED technology to your living room.
“With quantum dots, the color quality of the screen will be more visible and more flexible. One can mix and match those colors of quantum dots precisely to produce any color needed,” said Vladimir Bulović, senior author of the study and professor of emerging technology at MIT, in a statement.
The researchers studied the tiny changes that take place inside LEDs that use quantum dots, including cutting them into very thin slivers. Think of quantum dots as ultra-small semiconductors that provide accurate colors and superior image quality to us. computers and TVs. However, the researchers discovered important ways in which the manufacturing process and the lifetime of QD-LEDs could be improved.
QD-LEDs are complex
Another way the researchers suggest to improve QD-LED longevity and efficiency is to encase them in an “acrylate-based resin” to extend their lifespan. Doing so will help prevent the QD-LEDs from degrading sooner — which can mean better performing QD-LEDs and better image quality for you.
The researchers tested this in several ways, including testing red, green and blue QD-LEDs. They developed a way to slice the QD-LED thinly to see what happens in different phases of the material, where they observed structural and chemical changes. When QD-LEDs fuse, they lose their shape and release more hydrogen and oxygen, which can accelerate degradation. Encapsulating QD-LEDs in resin helped.
That doesn’t prevent deterioration entirely, but slows it down while improving efficiency and longevity.
“This version of quantum LED dots would be better than anything out there — it’s easy to make, efficient, and high-quality,” Bulović said. “This can open up vistas in many ways to think about this technology, not just because of displays or lighting, but also sensors, lasers, and so on.”
A bright future for TVs?
CNET Editor in Chief David Katzmaier, who has reviewed TVs for more than 20 years, said the findings of the MIT study are exciting for the TV world.
“For years, we have suspected that self-luminous or electroluminescent quantum dots could be the basis for TVs that deliver better picture quality than the current champion, OLED,” he said. “Quantum dots have been used for more than a decade in TVs with LED and OLED light sources, but the electrically excited QD-LED promises a big improvement.”
If these improvements can be commercialized, they could lead to better image quality and energy efficiency, which is especially important for large screens and HDR displays, Katzmaier said. However, don’t expect this technology anytime soon. He predicts that it will be years before this technology becomes available, and even before it becomes affordable enough OLED or LED TVs.
