On July 22, zhejiang university chemistry professor peng laugh just held in TCL "science face to face, quantum dots display technology science forum" of science and technology, including the "first financial daily" reporter said, "quantum dot is found in human history the most excellent luminescence materials, quantum dot light emitting the most powerful competitors will be the next generation display technology."

Released in February, the ministry of science and technology research and development of the national key project specialized 2016 project application in the guide, "quantum dot light emitting display key materials and device research" was included in the strategic key special advanced electronic materials. Next development direction, is the high photosynthetic efficiency and low cost of red, green, and blue dots materials and "a new generation without cadmium quantum dot material preparation technology", and so on.

In the past, the quantum dots by using a kind of toxic carcinogenic elements - cadmium, and let consumers fear. , peng laugh just specially explains: "(quantum dots) the content of cadmium, impact on the environment is controlled. For the moment, quantum dot the harm to environment, didn't you imagine so terrible, but in terms of existing technologies, and to do really do not contain cadmium, also need time."

However, the quantum dots mainly applied to the backlight of liquid crystal TV, improve color is rich, also belong to the improvement of technology, if really make quantum dot light emitting TV, that is disruptive technology innovation. Now see, it at least five years. That is to say, the next five years, quantum dots between television and known as the next generation of display OLED TV, there is a long game.

Quantum dots are one kinds of new materials - solution one of nanocrystals. Nanocrystalline solution has the dual nature of the crystal and solution. Unlike other nanocrystalline materials, quantum dots is based on semiconductor crystal. Size between 1 ~ 100 nm, each particle is a single crystal.

When a semiconductor crystal small to nanoscale, different sizes can be different colors of light. Such as cadmium selenide this semiconductor nanocrystals, when 2 nm is blue light, to 8 nanometers in size when a light is red, the size of the middle is green, yellow, orange, etc. The chemical composition of quantum dots, emitting light colors can cover the whole visible range from blue to red, and high color purity, continuously adjustable.

And OLED (organic light emitting diode), light, thin, glaring color, can volume can wait advantages and characteristic. Currently, OLED is widely used in high-end smartphones, but OLED screen TV penetration rate is very low, mainly to domestic OLED panel, especially the big 4 koled panel of low yield and high cost.

So, such as skyworth, LG, konka, changhong pushing the OLED TV at the same time, TCL, samsung, raise quantum dots TV standard, and that quantum dots in colour TV will shrink or even beyond the OLED TV abundance gap, and the cost of the quantum dots TV is far lower than the OLED TV.

Develop the new type of display technology, this is China's color TV enterprises really beyond Europe and the United States, Japan and South Korea the only chance. And peng laugh just admitted that research and development on the techniques of quantum dots, "can't say we level on the international front, can only say that is in the lead."

On July 22, CTO of TCL multimedia Chen Guanglang also said: "at present, TCL has invested billions of research on printing and display technology costs, although say five years is the goal, but most likely in five years is parked in the laboratory stage, real applications are much longer."