Vivo dipped its toe into the water with the vivo NEX Dual Display last year and it looks like the company is ready for another take on the dual-display design. LetsGoDigital unearthed a patent that was filed in September 2018 and is now approved by the WIPO (World Intellectual Property Office). The patent contains 37 sketches of two smartphone designs. Both smartphones are depicted with two displays with small differences in the design. Model A has an O-ring LED on its back similar to the original vivo NEX Dual Display, but it's off-centered this time around. The LED ring serves as a...