The hottest scholars have developed the world's fi

Taiwanese scholars have developed the world's first full-color LED, "changing the lighting technology of the next generation"

the latest issue of "compound semiconductor", an authoritative magazine in the optoelectronics industry, introduces the world's first single crystal full-color light-emitting diode, and takes this invention as the cover story of the publication to describe in detail the significant impact this technology can have on the future new generation of lighting and displays, even called "a game changer for next generation lighting", The inventors are two scholars from Taiwan, China, China

since Japanese scientist Takeji Nakamura (winner of the 2014 Nobel Prize in physics and current professor of the University of California) invented high brightness blue and green light emitting diodes (LEDs) more than 20 years ago, LED has been widely used in daily lighting, TV backlight, cars and medical equipment. However, at present, there are only monochrome LEDs in the market for tensile strength, constant elongation, constant elongation force value and yield strength. In full-color or white light applications that require blue, green and red (three primary colors), only three monochrome LEDs can be used to form a full-color LED, or yellow phosphor can be added to the blue led to achieve the effect similar to white light. These methods have the disadvantages of difficult manufacturing, high price, waste of electricity or poor efficiency, especially in the future and television, which have higher and higher requirements for power saving and resolution, and the traditional methods have encountered bottlenecks

this problem that has plagued the industry for a long time has recently been solved by Chinese scientists. Ostendo EPI Lab., affiliated to ostendo tech Inc., Southern California, developed the world's first full-color LED, which is the responsibility of the contractor. They used gallium nitride materials to develop three special quantum structures, which can emit three different colors of light, which can be emitted independently or mixed. Due to the characteristics of power saving and long service life of LED, the full LED display made of full-color LED may replace the current liquid crystal technology (LCD) and even surpass the organic light emitting diode (OLED)

Dr. Chen Zhijia, the host of the program, said that it is a mature technology to make blue or green LEDs from gallium nitride materials, but it is very difficult to make red LEDs. They are not only one of the few teams in the world that can achieve this goal, but also the only team that can concentrate the three primary colors on a small device, and can choose any color at will. If you add the appropriate allocation of circuits, you can mix data and process countless kinds of color light, The picture quality will be more beautiful

the two inventors are Chen Zhijia and ye Yachuan from Taiwan, China, China. Chen Zhijia graduated from the Department of Electronic Physics of Jiaotong University in Taiwan, China, China, and obtained a doctor of electrical engineering from the State University of New York. He once served as an associate professor of electrical engineering at the University of Maryland, and currently serves as the head of ostendo leijing laboratory. Ye Yachuan graduated from the Department of electrical engineering of Taiwan, China University, China, and obtained a doctor of electrical engineering from the University of Los Angeles. He once served as a researcher at tecstar and NASA Jet Propulsion Laboratory (nasa-jpl), and currently serves as the company's chief scientist