"Visible Light Communication (VLC)" is the best candidate for the next generation of network communication owing to its wide bandwidthscompatibility with solid-state lighting devices. Our proposed technology features a novel multilevel photosensing memory which can integrate the photosensing, memorycomputation components for VLC into one device. This device is based on a thin film transistor, where the oxide semiconductor is added with gold nanoparticles to form a "co-active layer" in order to expand the visible light sensing spectrumefficiently convert the light signal into a current signal. It not only simplifies the production processreduces the cost, but also accelerates the signal transmission speed, which further advances the future mobile comm

A wavelength tunable micro-light-emitting diodes fabricated by the nanometer-level etching technology, the strain-induced engineering can effectively shift the emission wavelength from green to blue. Meanwhile, we introduced the ALD for the passivation layer,the super inkjet printing system used to form the color-conversion layer to emissive red light. Finally, a hybrid type full-color micro-LED has been fabricated with the monolithic epitaxial wafer.