As I understand it, reMarkable claims[1] to have developed CANVAS from the ground-up on top of Carta technology, in close collaboration with E Ink. It may be as

As I understand it, reMarkable claims[1] to have developed CANVAS from the ground-up on top of Carta technology, in close collaboration with E Ink. It may be as you say and they developed just the drivers, but I believe from their press releases that they are responsible for some breakthrough detail to accelerate refresh, that E Ink didn't think was possible (something to do with a waveform transmission signal to transfer pixels to the screen). They were the first to build the technology to bring refresh times for writing near the 50ms mark, and hold the patent about it (AFAIK they license this patent to other builders who use Canvas). [1] https://support.remarkable.com/hc/en-us/articles/360002647518-CANVAS-Display- https://support.remarkable.com/hc/en-us/articles/36000264751...