On March 10, BOE developed a 5-inch active electroluminescent quantum dot luminescent display product (AMQLED), which is responsible for "optical display engineering" research on key materials and devices of quantum dots. Unlike LCD backlight, which uses quantum dots to expand the color gamut, the product directly uses inkjet printing process to produce quantum dot light-emitting devices (QLED) to achieve full color display with over 100% color gamut.

A quantum dot is a very small semiconductor crystal with only a few atoms. Quantum dots absorb light, and different colors of light can be achieved by controlling the size of the dots. Based on this characteristic, quantum dot technology is mainly applied in quantum dot backlight technology and active quantum dot light-emitting diode (AMQLED).

Liquid crystal products themselves can not emit light, so THEY need LED as backlight to realize display. The earlier quantum dot TV in the market is the LIQUID crystal TV technology using quantum dot backlight. Quantum dot backlight technology is to replace the traditional LED backlight with quantum dots and make LED backlight with quantum film. Compared with traditional LED backlit TVS, the display color can be increased by more than 30%.

Compared with quantum dots backlight technology, there is no active electroluminescent backlight quantum dot light emitting display (AMQLED), injection current can make quantum dot light emitting display device, its structure is similar to the active organic light emitting diode (AMOLED), by contrast, although different luminous, AMQLED light made of organic light-emitting materials, used for inorganic quantum dots, However, compared with AMOLED, AMQLED is widely considered to have the potential advantages of long service life, wide color gamut and low cost, and is widely considered to be a more subversive display of AMOLED technology, especially in the field of large-size active light display, which will have greater competitiveness.

At present, the development of quantum dot technology is still in its infancy. According to industry analysis, quantum dots will not only bring a subversive upgrade to display technology, but also have broad application prospects in biological science, solar cells and other fields, and is one of the core technologies to change the direction of future development.