Korea KAIST develops low-cost transfer method of f-VLED

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

Compared with transverse Micro LED, blue Gan f-VLED can achieve a third power density (~30 mW / mm2). At the same time, the team can also reduce the generation of heat, thereby prolonging the service life of the projection device for about 100000 hours.

These blue f-VLED can be used for wearable devices, on the skin, or even in the brain. In addition, the R & D team said it could provide stable power for Micro LED through wireless transmission.

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

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

The study was published in the June 2018 issue of Advanced Materials. (Editor: LED net James)

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