In March 10th, BOE (BOE) developed 5 inch active electroluminescent quantum dot light emitting display products (AMQLED), which is BOE taking charge of "light display project" Research on key materials and devices of quantum dots. Different from the LCD backlight using quantum dots to expand the color gamut of the material, the product directly use inkjet printing process for the preparation of quantum dot light-emitting devices (QLED) to achieve full-color display, color gamut of more than 100%.
The quantum dot is a very small semiconductor crystal with only a few atoms. The quantum dots can absorb the light, and the light of different colors can be realized by controlling the size of the quantum dots. Based on this characteristic, the quantum dot technology is mainly used in the quantum dot backlight technology and active quantum dot light-emitting diode (AMQLED).
LCD product itself can not emit light, the need for LED as a backlight to achieve the display, the market appeared earlier in the quantum dot TV, is the use of quantum dot backlight LCD TV technology. The technology of quantum dot backlight is to replace the traditional LED backlight with the quantum dots, and to make the LED back light source with the quantum film. The display color can be increased by more than 30% compared with the traditional LED backlight tv.
Compared with the quantum dot backlighting technology, active electroluminescent quantum dot light-emitting display (AMQLED) without backlight, the injected current can make the quantum dot light emitting display device, the structure is similar to that of active organic light-emitting diode (AMOLED), in comparison, although the different light, AMQLED light source from the organic light emitting materials for the inorganic quantum dots, but compared to AMOLED, AMQLED is generally considered to have potential advantages of long service life, wide color gamut, low cost, is widely considered to be displayed after AMOLED technology is more subversive, especially in large size active light emitting display field, there will be more competitive.
At present, the development of quantum dot technology is still in its infancy. Analysis of the industry, quantum dots will not only display technology to bring disruptive upgrade, but will have wide application prospect in the field of biological science, solar cell and so on, is to change the future direction of one of the core technology.