What is Quantum Dot?

Three scientists won the 2023 Nobel Prize in chemistry for their work on quantum dots. Moungi Bawendi of MIT, Louis Brus of Columbia University, and Alexei Ekimov of Nanocrystals Technology Inc., were honored for their work with the tiny particles that “have unique properties and now spread their light from television screens and LED lamps,” according to the Royal Swedish Academy of Sciences.

Quantum dots are tiny particles consisting of a few atoms. Scientists have shown that quantum dots can emit light after absorbing energy. By controlling their sizes, they can give off light of different colors.

Applications of quantum dots technology in display products are mainly divided into two major categories: Active Matrix Quantum-dot Light Emitting Diode (AMQLED) and quantum dot backlight.

AMQLED is a self-luminous display technology without a backlight source. Its light-emitting mechanism is similar to that of an incandescent lamp. Quantum dots can give out light by injecting current. The display effect is similar to that of Active-Matrix Organic LED (AMOLED). These two display devices are similar in structure, but their light sources are different. Organic materials are replaced by inorganic quantum dots. AMQLED, featuring high efficiency, energy saving, long service life, and more pure bright color, is the next-generation important display technology.

Quantum dot backlight is not a new display technology, but a way to enhancing the color performance of the LCD technology. We can diffuse the quantum dots in a film and stack the film onto the backlight unit of a LCD screen. For example, with the quantum-dot film Blue LED can excite Red and Green, thereby forming an all color spectrum. The colors increase by more than 30% when compared with those of the traditional LED TV. The so-called quantum dot TV in the market is actually a LCD TV with quantum dot backlight technology. More accurately, it should be called quantum dot backlight LCD TV.

As a BOE screen manufacturer, BOE has been at the forefront of integrating quantum dot technology into LCD displays. The company’s innovation with quantum dot materials allows BOE screens to achieve unparalleled color accuracy and vividness, setting a new standard for image quality in the industry. BOE screen manufacturing with quantum dot technology presents a revolution in how we experience visual content. From the deepest blacks to the most dazzling whites and every hue in between, BOE screens capture the full spectrum of color that the human eye can perceive.

The pursuit of greener technology is a hallmark of BOE’s screen manufacturing philosophy. By incorporating quantum dot materials, BOE screens achieve a higher level of energy efficiency. Quantum dots require less backlighting, which reduces power consumption, and by extension, the carbon footprint of the displays.

The integration of quantum dot technology in LCD displays is a testament to the innovative spirit of BOE as a screen manufacturer. With each BOE screen that rolls off the manufacturing line, the company reaffirms its commitment to excellence, sustainability, and the future of display technology.