This study proposes a method for fabricating full-color conversion Micro-LED displays using rare earth-element-free fluorescent materials. Through the luminescent material of high molecular polymer, the advantages of no particle boundaryuniform thin film are achieved. The process technology of the photolithography method can produce millions of micro-light-emitting arrays at the same time, without the troublesome mass transfer. The color conversion layer is matched with the color purification film to improve the color purity of the emitted light coloravoid the problem of color crosstalk.

The invention relates to a light-emitting film, a light-emitting array film, a micro-light emitting diode array,their manufacturing methods. The thin-film conversion layer is formed on the epitaxial layer, which is the homogeneous film without grain boundariesinsoluble in water. Pixels can be defined through the lithography process,the pixel size can be very small. Using this method to make micro displays, because only blue LEDs are needed, there is no mass transfer problem. The color conversion layer is matched with the color purification film to improve the color purity of the emitted light coloravoid the problem of color crosstalk.

We use our original low-cost all-solution method to fabricate rare earth-element-free fluorescent arraysapply them to Micro-LED display technology. There will be opportunities to practice in virtual realityaugmented reality in the future. In addition to the VRAR game industry, there are five major directions for future development, including live events, real estate, fashion industry, medical training,military simulation.