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Chavez Tapia, M.A. (author), Xu, M. (author), Wu, Zehang (author), Zuniga, Marco (author)A recent development in wireless communication is the use of optical shutters and smartphone cameras to create optical links solely from ambient light. At the transmitter, a liquid crystal display (LCD) modulates ambient light by changing its level of transparency. At the receiver, a smartphone camera decodes the optical pattern. This LCD-To...journal article 2022