vivo phone with synaptics hidden fingerprint sensorAntonio Villas-Boas/Business Insider

Smartphone makers have had us drooling for years over the idea of a phone that’s all screen, with no buttons or borders to interrupt the pure design.

But try as they might, the concept hasn’t exactly come to fruition. The most popular devices have come with extremely thin bezels — or, like the iPhone X, add a notch toward the top of the phone to house the camera and all its front-facing sensors.

Still, we’ve been seeing more patents and murmurings of an all-screen phone. Here are some details on what might be in the smartphone pipeline.