TCL has equipped its latest smartphones with its NXTPAPER display technology, which is designed to reduce eye strain. Fundamentally they’re still backlit LCD panels, but they’re LCD panels that emit less blue light, and have an anti-glare coating and a matte-textured finish. Here’s how the display looks on the NXTPAPER 40 5G, whose 90Hz display can get as bright as 500 nits.