Reporter learned from the Zhejiang Provincial Science and Technology Department, recently, Zhejiang University High and New Materials Chemistry Peng Xiaogang Task Force and Jin Yizheng task force to design a new type of quantum dot light-emitting diode (QLED), is expected to become the next generation of display and lighting technology competitor. This new QLED device fabrication method is based on a low-cost solution process that has the potential for mass production and outperforms all known red-light devices for solution processes, driving lifetimes under brightness conditions to 100,000 hours The practical level. Recently, the first paper on the related achievements has been published in "Nature" magazine. Zhejiang University research team first solved the quantum dot synthesis chemistry, QLED designed and synthesized tailored quantum dots. Secondly, by analyzing the characteristics of the QLED device itself, the key issues of the device structure are found out. By inserting an ultra-thin insulating layer in the device, the problem of carrier balanced injection for many years in the field of QLED is solved. The solution of these two problems, the electro-optical conversion efficiency of the device to near the theoretical limit level, the device life to promote> 100000 hours of practical level, verify the practicality of QLED. This indicates that QLED is expected to play an important role in both lighting and display industries. (He Fang side)