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If you’re looking to buy an e-reader, you should wait a little longer. Color e-reader screens, like E Ink’s Advanced Color e-Paper version 2 (ACeP v2 or Gallery 4100) and TCL’s Nxtpaper technologies, may revolutionize how we read ebooks in 2022 and beyond. So, if you’re wondering why you should wait, here are the top six backlight-free technologies that will change how we read in the near future.