Apple Pencil will never allow the user to have the feeling of writing on a true sheet of paper, instead of on a cold display of an iPad? According to the latest patent filed by the Cupertino company in June 2018 and published today by the USPTO (number 20190384402), it would seem so. Actually write – in the classic sense of the term, with a pen or pencil – it gives a feedback very different from that of a digital pen, even if over time – from Samsung's first S Pen onwards – the so-called user experience it's definitely improved.
So why not make it digital this sensation writing on paper? The patent is called "Stylus with haptic feedback for texture simulation", as described in the documentation:
A pen can include a frame / housing and a tip. A force-sensitive system can record the movement of the tip relative to the structure when a force is applied to the tip. A haptic feedback system can move the tip toward the housing, for example by inducing a magnetic field through magnetic elements connected to the tip and housing. Haptic feedback can be used to return a writing sensation to a surface to simulate the drawing with the stylus. In this way, the same tip used to return input can receive haptic feedback during use. The user can continue to use the tip to write even when haptic feedback is applied to the tip itself.
Today it seems that the idea has moved forward, with the implementation of a solution designed to give the user a real "real feeling" that reduces the distance between "material" (on paper) and digital feedback (on screen ). Who knows, soon we could have in our hands an Apple Pencil with these features, perhaps even with a small integrated display that can provide information, for example, on the color we are using to draw or write (patent 20190324561 published in October 2019).