According to the announcement from the official website of Tianjin Municipal People’s Government on December 11, Tianjin San’an has worked with Tiangong University to develop RGB Micro LED chips and microdisplay array key technologies, and they have overcome Micro LED epitaxial structure design, material growth and high-yield mass transfer and have successfully developed RGB Micro LED chips. The external quantum efficiency has reached a higher level, and the transfer yield rate has achieved above 99.9%. The products have applied for 4 invention paten...