South Korea's KAIST developed a low cost transfer method for f-VLED

According to foreign media reports, the South Korean Academy of science and Technology (KAIST) research team has developed a low-cost production method for the flexible vertical blue film Micro LED (f-VLED). Keon Jae Lee, from the Department of materials science and engineering, and the team developed a one-time transfer method for manufacturing thousands of blue Gan (GaN) Micro LED (thickness <2 mu m) arrays on plastic.

Compared with the lateral Micro LED, the blue gallium nitride f-VLED can achieve a high three times optical power density (~30 mW / mm2). At the same time, the team can also reduce the production of heat, thereby prolonging the service life of the projection equipment for about 100000 hours.

The blue f-VLED can be used in wearable devices, conformifully on the skin, and even in the brain. In addition, the R & D team says it can provide a stable power supply for Micro LED through wireless transmission.

Due to the very low power consumption, faster response speed and design flexibility of Micro LED, it is expected that the Micro LED will replace the AMOLED display. But to reach a larger scale of display and television, this manufacturing technology needs to be able to transfer millions of red, blue, and green Micro LED.

Keon Jae Lee said: "for the future Micro LED, film transfer, efficient devices and interconnect innovative technologies are very necessary. We plan to display the full color Micro LED display of the smart watch size by the end of this year. "

The study was published in the June 2018 Advanced Materials journal. (Editor: LED network James)

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