Film and stylus system for emulating pen-on-paper tactile feedback
US10895922B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2019 |
| Grant date | Jan 19, 2021 |
| Priority date | — |
| Expiry date | Apr 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03545
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A feedback-enhancing film includes: an elastic layer comprising a first polymer exhibiting optical transparency and elasticity; and an interface layer arranged across an upper surface of the elastic layer comprising a second polymer exhibiting optical transparency, impact resistance, UV resistance, and smoothness to touch. Additionally, the interface layer and the elastic layer mutually deform to resist transverse movement of a stylus tip across the interface layer in response to an application of writing force to the interface layer via the stylus tip. The film can also comprise a system including: the film; a stylus including a stylus tip; and a touch-sensitive screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.