“…In recent years, with the development of LED (light emitting diode) miniaturization, Micro LED has been regarded as the most promising display technology, due to an optimistic market prospects with dominant advantages on brightness, color gamut, lifetime, and other characteristics [1][2][3]. Many groups and companies researchers have focused on this field to boost it for large-scale application [4,5]. In the field of public information display (PID) which needs lots of large size display, the single large size screen is limited in complicated process, low product yield and high cost.…”