In this paper, a novel tricolor dot matrix display system in which all the LEDs are modulated and encoded with audio information is presented. The novelty is on the concurrent use of the tricolor LEDs for simultaneous visual message display and audio signal transmission in a free space optical link. The system is comprised of a tricolor LED dot matrix display panel with an interface circuit to ...

In this work, we fabricated a biaxially stretchable light-emitting diode (LED) display based on wavy structured-metal electrode grid packaged together with LED chips. The micro-electromechanical systems (MEMS) fabrication process was utilized to fabricate the wavy-structured metal connections and rigid islands. resulting can be readily bent, rolled, stretched even washed no degradation of its i...

Abstract A flexible full-color micro-LED display with high mechanical robustness was fabricated by printing quantum dots (QDs) on a blue array using standard photolithography. The red and green colors yielded from QDs exhibit better color gamut than conventional filters. light conversion efficiency enhanced adding TiO 2 nanoparticles to the QD-photoresist composite. This successfully mounted va...

pessimism, a phenomenon of deep effect over the contemporary poetry, both arabic and persian, usually enjoys a widespread usage in the periods of social, political and economic disorders which, in turn, affect the poets’ views and change their visions toward the real. elias abu-shabaka and hushang ebtehaj are the poets of a modern disorderly era and environment. they both display a deep pessimi...